1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765176617671768176917701771177217731774177517761777177817791780178117821783178417851786178717881789179017911792179317941795179617971798179918001801180218031804180518061807180818091810181118121813181418151816181718181819182018211822182318241825182618271828182918301831183218331834183518361837183818391840184118421843184418451846184718481849185018511852185318541855185618571858185918601861186218631864186518661867186818691870187118721873187418751876187718781879188018811882188318841885188618871888188918901891189218931894189518961897189818991900190119021903190419051906190719081909191019111912191319141915191619171918191919201921192219231924192519261927192819291930193119321933193419351936193719381939194019411942194319441945194619471948194919501951195219531954195519561957195819591960196119621963196419651966196719681969197019711972197319741975197619771978197919801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026202720282029203020312032203320342035203620372038203920402041204220432044204520462047204820492050205120522053205420552056205720582059206020612062206320642065206620672068206920702071207220732074207520762077207820792080208120822083208420852086208720882089209020912092209320942095209620972098209921002101210221032104210521062107210821092110211121122113211421152116211721182119212021212122212321242125212621272128212921302131213221332134213521362137213821392140214121422143214421452146214721482149215021512152215321542155215621572158215921602161216221632164216521662167216821692170217121722173217421752176217721782179218021812182218321842185218621872188218921902191219221932194219521962197219821992200220122022203220422052206220722082209221022112212221322142215221622172218221922202221222222232224222522262227222822292230223122322233223422352236223722382239224022412242224322442245224622472248224922502251225222532254225522562257225822592260226122622263226422652266226722682269227022712272227322742275227622772278227922802281228222832284228522862287228822892290229122922293229422952296229722982299230023012302230323042305230623072308230923102311231223132314231523162317231823192320232123222323232423252326232723282329233023312332233323342335233623372338233923402341234223432344234523462347234823492350235123522353235423552356235723582359236023612362236323642365236623672368236923702371237223732374237523762377237823792380238123822383238423852386238723882389239023912392239323942395239623972398239924002401240224032404240524062407240824092410241124122413241424152416241724182419242024212422242324242425242624272428242924302431243224332434243524362437243824392440244124422443244424452446244724482449245024512452245324542455245624572458245924602461246224632464246524662467246824692470247124722473247424752476247724782479248024812482248324842485248624872488248924902491249224932494249524962497249824992500250125022503250425052506250725082509251025112512251325142515251625172518251925202521252225232524252525262527252825292530253125322533253425352536253725382539254025412542254325442545254625472548254925502551255225532554255525562557255825592560256125622563256425652566256725682569257025712572257325742575257625772578257925802581258225832584258525862587258825892590259125922593259425952596259725982599260026012602260326042605260626072608260926102611261226132614261526162617261826192620262126222623262426252626262726282629263026312632263326342635263626372638263926402641264226432644264526462647264826492650265126522653265426552656265726582659266026612662266326642665266626672668266926702671267226732674267526762677267826792680268126822683268426852686268726882689269026912692269326942695269626972698269927002701270227032704270527062707270827092710271127122713271427152716271727182719272027212722272327242725272627272728272927302731273227332734273527362737273827392740274127422743274427452746274727482749275027512752275327542755275627572758275927602761276227632764276527662767276827692770277127722773277427752776277727782779278027812782278327842785278627872788278927902791279227932794279527962797279827992800280128022803280428052806280728082809281028112812281328142815281628172818281928202821282228232824282528262827282828292830283128322833283428352836283728382839284028412842284328442845284628472848284928502851285228532854285528562857285828592860286128622863286428652866286728682869287028712872287328742875287628772878287928802881288228832884288528862887288828892890289128922893289428952896289728982899290029012902290329042905290629072908290929102911291229132914291529162917291829192920292129222923292429252926292729282929293029312932293329342935293629372938293929402941294229432944294529462947294829492950295129522953295429552956295729582959296029612962296329642965296629672968296929702971297229732974297529762977297829792980298129822983298429852986298729882989299029912992299329942995299629972998299930003001300230033004300530063007300830093010301130123013301430153016301730183019302030213022302330243025302630273028302930303031303230333034303530363037303830393040304130423043304430453046304730483049305030513052305330543055305630573058305930603061306230633064306530663067306830693070307130723073307430753076307730783079308030813082308330843085308630873088308930903091309230933094309530963097309830993100310131023103310431053106310731083109311031113112311331143115311631173118311931203121312231233124312531263127312831293130313131323133313431353136313731383139314031413142314331443145314631473148314931503151315231533154315531563157315831593160316131623163316431653166316731683169317031713172317331743175317631773178317931803181318231833184318531863187318831893190319131923193319431953196319731983199320032013202320332043205320632073208320932103211321232133214321532163217321832193220322132223223322432253226322732283229323032313232323332343235323632373238323932403241324232433244324532463247324832493250325132523253325432553256325732583259326032613262326332643265326632673268326932703271327232733274327532763277327832793280328132823283328432853286328732883289329032913292329332943295329632973298329933003301330233033304330533063307330833093310331133123313331433153316331733183319332033213322332333243325332633273328332933303331333233333334333533363337333833393340334133423343334433453346334733483349335033513352335333543355335633573358335933603361336233633364336533663367336833693370337133723373337433753376337733783379338033813382338333843385338633873388338933903391339233933394339533963397339833993400340134023403340434053406340734083409341034113412341334143415341634173418341934203421342234233424342534263427342834293430343134323433343434353436343734383439344034413442344334443445344634473448344934503451345234533454345534563457345834593460346134623463346434653466346734683469347034713472347334743475347634773478347934803481348234833484348534863487348834893490349134923493349434953496349734983499350035013502350335043505350635073508350935103511351235133514351535163517351835193520352135223523352435253526352735283529353035313532353335343535353635373538353935403541354235433544354535463547354835493550355135523553355435553556355735583559356035613562356335643565356635673568356935703571357235733574357535763577357835793580358135823583358435853586358735883589359035913592359335943595359635973598359936003601360236033604360536063607360836093610361136123613361436153616361736183619362036213622362336243625362636273628362936303631363236333634363536363637363836393640364136423643364436453646364736483649365036513652365336543655365636573658365936603661366236633664366536663667366836693670367136723673367436753676367736783679368036813682368336843685368636873688368936903691369236933694369536963697369836993700370137023703370437053706370737083709371037113712371337143715371637173718371937203721372237233724372537263727372837293730373137323733373437353736373737383739374037413742374337443745374637473748374937503751375237533754375537563757375837593760376137623763376437653766376737683769377037713772377337743775377637773778377937803781378237833784378537863787378837893790379137923793379437953796379737983799380038013802380338043805380638073808380938103811381238133814381538163817381838193820382138223823382438253826382738283829383038313832383338343835383638373838383938403841384238433844384538463847384838493850385138523853385438553856385738583859386038613862386338643865386638673868386938703871387238733874387538763877387838793880388138823883388438853886388738883889389038913892389338943895389638973898389939003901390239033904390539063907390839093910391139123913391439153916391739183919392039213922392339243925392639273928392939303931393239333934393539363937393839393940394139423943394439453946394739483949395039513952395339543955395639573958395939603961396239633964396539663967396839693970397139723973397439753976397739783979398039813982398339843985398639873988398939903991399239933994399539963997399839994000400140024003400440054006400740084009401040114012401340144015401640174018401940204021402240234024402540264027402840294030403140324033403440354036403740384039404040414042404340444045404640474048404940504051405240534054405540564057405840594060406140624063406440654066406740684069407040714072407340744075407640774078407940804081408240834084408540864087408840894090409140924093409440954096409740984099410041014102410341044105410641074108410941104111411241134114411541164117411841194120412141224123412441254126412741284129413041314132413341344135413641374138413941404141414241434144414541464147414841494150415141524153415441554156415741584159416041614162416341644165416641674168416941704171417241734174417541764177417841794180418141824183418441854186418741884189419041914192419341944195419641974198419942004201420242034204420542064207420842094210421142124213421442154216421742184219422042214222422342244225422642274228422942304231423242334234423542364237423842394240424142424243424442454246424742484249425042514252425342544255425642574258425942604261426242634264426542664267426842694270427142724273427442754276427742784279428042814282428342844285428642874288428942904291429242934294429542964297429842994300430143024303430443054306430743084309431043114312 |
- /* 32-bit ELF support for TI C6X
- Copyright (C) 2010-2022 Free Software Foundation, Inc.
- Contributed by Joseph Myers <joseph@codesourcery.com>
- Bernd Schmidt <bernds@codesourcery.com>
- This file is part of BFD, the Binary File Descriptor library.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
- MA 02110-1301, USA. */
- #include "sysdep.h"
- #include <limits.h>
- #include "bfd.h"
- #include "libbfd.h"
- #include "libiberty.h"
- #include "elf-bfd.h"
- #include "elf/tic6x.h"
- #include "elf32-tic6x.h"
- #define ELF_DYNAMIC_INTERPRETER "/lib/ld-uClibc.so.0"
- /* DSBT binaries have a default 128K stack. */
- #define DEFAULT_STACK_SIZE 0x20000
- /* The size in bytes of an entry in the procedure linkage table. */
- #define PLT_ENTRY_SIZE 24
- /* TI C6X ELF linker hash table. */
- struct elf32_tic6x_link_hash_table
- {
- struct elf_link_hash_table elf;
- /* C6X specific command line arguments. */
- struct elf32_tic6x_params params;
- /* The output BFD, for convenience. */
- bfd *obfd;
- /* The .dsbt section. */
- asection *dsbt;
- };
- /* Get the TI C6X ELF linker hash table from a link_info structure. */
- #define elf32_tic6x_hash_table(p) \
- ((struct elf32_tic6x_link_hash_table *) ((p)->hash))
- typedef enum
- {
- DELETE_EXIDX_ENTRY,
- INSERT_EXIDX_CANTUNWIND_AT_END
- }
- tic6x_unwind_edit_type;
- /* A (sorted) list of edits to apply to an unwind table. */
- typedef struct tic6x_unwind_table_edit
- {
- tic6x_unwind_edit_type type;
- /* Note: we sometimes want to insert an unwind entry corresponding to a
- section different from the one we're currently writing out, so record the
- (text) section this edit relates to here. */
- asection *linked_section;
- unsigned int index;
- struct tic6x_unwind_table_edit *next;
- }
- tic6x_unwind_table_edit;
- typedef struct _tic6x_elf_section_data
- {
- /* Information about mapping symbols. */
- struct bfd_elf_section_data elf;
- /* Information about unwind tables. */
- union
- {
- /* Unwind info attached to a text section. */
- struct
- {
- asection *tic6x_exidx_sec;
- } text;
- /* Unwind info attached to an .c6xabi.exidx section. */
- struct
- {
- tic6x_unwind_table_edit *unwind_edit_list;
- tic6x_unwind_table_edit *unwind_edit_tail;
- } exidx;
- } u;
- }
- _tic6x_elf_section_data;
- #define elf32_tic6x_section_data(sec) \
- ((_tic6x_elf_section_data *) elf_section_data (sec))
- struct elf32_tic6x_obj_tdata
- {
- struct elf_obj_tdata root;
- /* Whether to use RELA relocations when generating relocations.
- This is a per-object flag to allow the assembler to generate REL
- relocations for use in linker testcases. */
- bool use_rela_p;
- };
- #define elf32_tic6x_tdata(abfd) \
- ((struct elf32_tic6x_obj_tdata *) (abfd)->tdata.any)
- #define is_tic6x_elf(bfd) \
- (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
- && elf_tdata (bfd) != NULL \
- && elf_object_id (bfd) == TIC6X_ELF_DATA)
- /* C6X ELF uses two common sections. One is the usual one, and the
- other is for small objects. All the small objects are kept
- together, and then referenced via the gp pointer, which yields
- faster assembler code. This is what we use for the small common
- section. This approach is copied from ecoff.c. */
- static asection tic6x_elf_scom_section;
- static const asymbol tic6x_elf_scom_symbol =
- GLOBAL_SYM_INIT (".scommon", &tic6x_elf_scom_section);
- static asection tic6x_elf_scom_section =
- BFD_FAKE_SECTION (tic6x_elf_scom_section, &tic6x_elf_scom_symbol,
- ".scommon", 0, SEC_IS_COMMON | SEC_SMALL_DATA);
- static reloc_howto_type elf32_tic6x_howto_table[] =
- {
- HOWTO (R_C6000_NONE, /* type */
- 0, /* rightshift */
- 3, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_NONE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS32", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS16, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x0000ffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS8, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS8", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x000000ff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S21, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 21, /* bitsize */
- true, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S21", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x0fffff80, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S12, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 12, /* bitsize */
- true, /* pc_relative */
- 16, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S12", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x0fff0000, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S10, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 10, /* bitsize */
- true, /* pc_relative */
- 13, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S10", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fe000, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S7, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 7, /* bitsize */
- true, /* pc_relative */
- 16, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S7", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007f0000, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_ABS_S16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS_S16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS_L16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS_L16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS_H16, /* type */
- 16, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS_H16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_U15_B, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_U15_B", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_U15_H, /* type */
- 1, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_U15_H", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_U15_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_U15_W", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_S16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_S16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_L16_B, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_L16_B", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_L16_H, /* type */
- 1, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_L16_H", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_L16_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_L16_W", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_H16_B, /* type */
- 16, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_H16_B", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_H16_H, /* type */
- 17, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_H16_H", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_H16_W, /* type */
- 18, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_H16_W", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_GOT_U15_W",/* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_GOT_L16_W",/* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_GOT_H16_W, /* type */
- 18, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_GOT_H16_W",/* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_DSBT_INDEX, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_DSBT_INDEX", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_PREL31, /* type */
- 1, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 31, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PREL31", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x7fffffff, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_COPY, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_COPY", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_JUMP_SLOT, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_JUMP_SLOT", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_EHTYPE, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_EHTYPE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_PCR_H16, /* type */
- 16, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- true, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_H16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_L16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- true, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_L16", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff80, /* dst_mask */
- true), /* pcrel_offset */
- EMPTY_HOWTO (31),
- EMPTY_HOWTO (32),
- EMPTY_HOWTO (33),
- EMPTY_HOWTO (34),
- EMPTY_HOWTO (35),
- EMPTY_HOWTO (36),
- EMPTY_HOWTO (37),
- EMPTY_HOWTO (38),
- EMPTY_HOWTO (39),
- EMPTY_HOWTO (40),
- EMPTY_HOWTO (41),
- EMPTY_HOWTO (42),
- EMPTY_HOWTO (43),
- EMPTY_HOWTO (44),
- EMPTY_HOWTO (45),
- EMPTY_HOWTO (46),
- EMPTY_HOWTO (47),
- EMPTY_HOWTO (48),
- EMPTY_HOWTO (49),
- EMPTY_HOWTO (50),
- EMPTY_HOWTO (51),
- EMPTY_HOWTO (52),
- EMPTY_HOWTO (53),
- EMPTY_HOWTO (54),
- EMPTY_HOWTO (55),
- EMPTY_HOWTO (56),
- EMPTY_HOWTO (57),
- EMPTY_HOWTO (58),
- EMPTY_HOWTO (59),
- EMPTY_HOWTO (60),
- EMPTY_HOWTO (61),
- EMPTY_HOWTO (62),
- EMPTY_HOWTO (63),
- EMPTY_HOWTO (64),
- EMPTY_HOWTO (65),
- EMPTY_HOWTO (66),
- EMPTY_HOWTO (67),
- EMPTY_HOWTO (68),
- EMPTY_HOWTO (69),
- EMPTY_HOWTO (70),
- EMPTY_HOWTO (71),
- EMPTY_HOWTO (72),
- EMPTY_HOWTO (73),
- EMPTY_HOWTO (74),
- EMPTY_HOWTO (75),
- EMPTY_HOWTO (76),
- EMPTY_HOWTO (77),
- EMPTY_HOWTO (78),
- EMPTY_HOWTO (79),
- EMPTY_HOWTO (80),
- EMPTY_HOWTO (81),
- EMPTY_HOWTO (82),
- EMPTY_HOWTO (83),
- EMPTY_HOWTO (84),
- EMPTY_HOWTO (85),
- EMPTY_HOWTO (86),
- EMPTY_HOWTO (87),
- EMPTY_HOWTO (88),
- EMPTY_HOWTO (89),
- EMPTY_HOWTO (90),
- EMPTY_HOWTO (91),
- EMPTY_HOWTO (92),
- EMPTY_HOWTO (93),
- EMPTY_HOWTO (94),
- EMPTY_HOWTO (95),
- EMPTY_HOWTO (96),
- EMPTY_HOWTO (97),
- EMPTY_HOWTO (98),
- EMPTY_HOWTO (99),
- EMPTY_HOWTO (100),
- EMPTY_HOWTO (101),
- EMPTY_HOWTO (102),
- EMPTY_HOWTO (103),
- EMPTY_HOWTO (104),
- EMPTY_HOWTO (105),
- EMPTY_HOWTO (106),
- EMPTY_HOWTO (107),
- EMPTY_HOWTO (108),
- EMPTY_HOWTO (109),
- EMPTY_HOWTO (110),
- EMPTY_HOWTO (111),
- EMPTY_HOWTO (112),
- EMPTY_HOWTO (113),
- EMPTY_HOWTO (114),
- EMPTY_HOWTO (115),
- EMPTY_HOWTO (116),
- EMPTY_HOWTO (117),
- EMPTY_HOWTO (118),
- EMPTY_HOWTO (119),
- EMPTY_HOWTO (120),
- EMPTY_HOWTO (121),
- EMPTY_HOWTO (122),
- EMPTY_HOWTO (123),
- EMPTY_HOWTO (124),
- EMPTY_HOWTO (125),
- EMPTY_HOWTO (126),
- EMPTY_HOWTO (127),
- EMPTY_HOWTO (128),
- EMPTY_HOWTO (129),
- EMPTY_HOWTO (130),
- EMPTY_HOWTO (131),
- EMPTY_HOWTO (132),
- EMPTY_HOWTO (133),
- EMPTY_HOWTO (134),
- EMPTY_HOWTO (135),
- EMPTY_HOWTO (136),
- EMPTY_HOWTO (137),
- EMPTY_HOWTO (138),
- EMPTY_HOWTO (139),
- EMPTY_HOWTO (140),
- EMPTY_HOWTO (141),
- EMPTY_HOWTO (142),
- EMPTY_HOWTO (143),
- EMPTY_HOWTO (144),
- EMPTY_HOWTO (145),
- EMPTY_HOWTO (146),
- EMPTY_HOWTO (147),
- EMPTY_HOWTO (148),
- EMPTY_HOWTO (149),
- EMPTY_HOWTO (150),
- EMPTY_HOWTO (151),
- EMPTY_HOWTO (152),
- EMPTY_HOWTO (153),
- EMPTY_HOWTO (154),
- EMPTY_HOWTO (155),
- EMPTY_HOWTO (156),
- EMPTY_HOWTO (157),
- EMPTY_HOWTO (158),
- EMPTY_HOWTO (159),
- EMPTY_HOWTO (160),
- EMPTY_HOWTO (161),
- EMPTY_HOWTO (162),
- EMPTY_HOWTO (163),
- EMPTY_HOWTO (164),
- EMPTY_HOWTO (165),
- EMPTY_HOWTO (166),
- EMPTY_HOWTO (167),
- EMPTY_HOWTO (168),
- EMPTY_HOWTO (169),
- EMPTY_HOWTO (170),
- EMPTY_HOWTO (171),
- EMPTY_HOWTO (172),
- EMPTY_HOWTO (173),
- EMPTY_HOWTO (174),
- EMPTY_HOWTO (175),
- EMPTY_HOWTO (176),
- EMPTY_HOWTO (177),
- EMPTY_HOWTO (178),
- EMPTY_HOWTO (179),
- EMPTY_HOWTO (180),
- EMPTY_HOWTO (181),
- EMPTY_HOWTO (182),
- EMPTY_HOWTO (183),
- EMPTY_HOWTO (184),
- EMPTY_HOWTO (185),
- EMPTY_HOWTO (186),
- EMPTY_HOWTO (187),
- EMPTY_HOWTO (188),
- EMPTY_HOWTO (189),
- EMPTY_HOWTO (190),
- EMPTY_HOWTO (191),
- EMPTY_HOWTO (192),
- EMPTY_HOWTO (193),
- EMPTY_HOWTO (194),
- EMPTY_HOWTO (195),
- EMPTY_HOWTO (196),
- EMPTY_HOWTO (197),
- EMPTY_HOWTO (198),
- EMPTY_HOWTO (199),
- EMPTY_HOWTO (200),
- EMPTY_HOWTO (201),
- EMPTY_HOWTO (202),
- EMPTY_HOWTO (203),
- EMPTY_HOWTO (204),
- EMPTY_HOWTO (205),
- EMPTY_HOWTO (206),
- EMPTY_HOWTO (207),
- EMPTY_HOWTO (208),
- EMPTY_HOWTO (209),
- EMPTY_HOWTO (210),
- EMPTY_HOWTO (211),
- EMPTY_HOWTO (212),
- EMPTY_HOWTO (213),
- EMPTY_HOWTO (214),
- EMPTY_HOWTO (215),
- EMPTY_HOWTO (216),
- EMPTY_HOWTO (217),
- EMPTY_HOWTO (218),
- EMPTY_HOWTO (219),
- EMPTY_HOWTO (220),
- EMPTY_HOWTO (221),
- EMPTY_HOWTO (222),
- EMPTY_HOWTO (223),
- EMPTY_HOWTO (224),
- EMPTY_HOWTO (225),
- EMPTY_HOWTO (226),
- EMPTY_HOWTO (227),
- EMPTY_HOWTO (228),
- EMPTY_HOWTO (229),
- EMPTY_HOWTO (230),
- EMPTY_HOWTO (231),
- EMPTY_HOWTO (232),
- EMPTY_HOWTO (233),
- EMPTY_HOWTO (234),
- EMPTY_HOWTO (235),
- EMPTY_HOWTO (236),
- EMPTY_HOWTO (237),
- EMPTY_HOWTO (238),
- EMPTY_HOWTO (239),
- EMPTY_HOWTO (240),
- EMPTY_HOWTO (241),
- EMPTY_HOWTO (242),
- EMPTY_HOWTO (243),
- EMPTY_HOWTO (244),
- EMPTY_HOWTO (245),
- EMPTY_HOWTO (246),
- EMPTY_HOWTO (247),
- EMPTY_HOWTO (248),
- EMPTY_HOWTO (249),
- EMPTY_HOWTO (250),
- EMPTY_HOWTO (251),
- EMPTY_HOWTO (252),
- HOWTO (R_C6000_ALIGN, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ALIGN", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_FPHEAD, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_FPHEAD", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_NOCMP, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_NOCMP", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false) /* pcrel_offset */
- };
- static reloc_howto_type elf32_tic6x_howto_table_rel[] =
- {
- HOWTO (R_C6000_NONE, /* type */
- 0, /* rightshift */
- 3, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_NONE", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS32, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS32", /* name */
- true, /* partial_inplace */
- 0xffffffff, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS16, /* type */
- 0, /* rightshift */
- 1, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS16", /* name */
- true, /* partial_inplace */
- 0x0000ffff, /* src_mask */
- 0x0000ffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS8, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 8, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_bitfield,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS8", /* name */
- true, /* partial_inplace */
- 0x000000ff, /* src_mask */
- 0x000000ff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S21, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 21, /* bitsize */
- true, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S21", /* name */
- true, /* partial_inplace */
- 0x0fffff80, /* src_mask */
- 0x0fffff80, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S12, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 12, /* bitsize */
- true, /* pc_relative */
- 16, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S12", /* name */
- true, /* partial_inplace */
- 0x0fff0000, /* src_mask */
- 0x0fff0000, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S10, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 10, /* bitsize */
- true, /* pc_relative */
- 13, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S10", /* name */
- true, /* partial_inplace */
- 0x007fe000, /* src_mask */
- 0x007fe000, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_PCR_S7, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 7, /* bitsize */
- true, /* pc_relative */
- 16, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PCR_S7", /* name */
- true, /* partial_inplace */
- 0x007f0000, /* src_mask */
- 0x007f0000, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_ABS_S16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS_S16", /* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_ABS_L16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ABS_L16", /* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- EMPTY_HOWTO (R_C6000_ABS_H16),
- HOWTO (R_C6000_SBR_U15_B, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_U15_B", /* name */
- true, /* partial_inplace */
- 0x007fff00, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_U15_H, /* type */
- 1, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_U15_H", /* name */
- true, /* partial_inplace */
- 0x007fff00, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_U15_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_U15_W", /* name */
- true, /* partial_inplace */
- 0x007fff00, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_S16, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_signed,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_S16", /* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_L16_B, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_L16_B", /* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_L16_H, /* type */
- 1, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_L16_H", /* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_L16_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_L16_W", /* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- EMPTY_HOWTO (R_C6000_SBR_H16_B),
- EMPTY_HOWTO (R_C6000_SBR_H16_H),
- EMPTY_HOWTO (R_C6000_SBR_H16_W),
- HOWTO (R_C6000_SBR_GOT_U15_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_GOT_U15_W",/* name */
- true, /* partial_inplace */
- 0x007fff00, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_SBR_GOT_L16_W, /* type */
- 2, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 16, /* bitsize */
- false, /* pc_relative */
- 7, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_SBR_GOT_L16_W",/* name */
- true, /* partial_inplace */
- 0x007fff80, /* src_mask */
- 0x007fff80, /* dst_mask */
- false), /* pcrel_offset */
- EMPTY_HOWTO (R_C6000_SBR_GOT_H16_W),
- HOWTO (R_C6000_DSBT_INDEX, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 15, /* bitsize */
- false, /* pc_relative */
- 8, /* bitpos */
- complain_overflow_unsigned,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_DSBT_INDEX", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0x007fff00, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_PREL31, /* type */
- 1, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 31, /* bitsize */
- true, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_PREL31", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0x7fffffff, /* dst_mask */
- true), /* pcrel_offset */
- HOWTO (R_C6000_COPY, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_COPY", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_JUMP_SLOT, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_JUMP_SLOT", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_EHTYPE, /* type */
- 0, /* rightshift */
- 2, /* size (0 = byte, 1 = short, 2 = long) */
- 32, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_EHTYPE", /* name */
- false, /* partial_inplace */
- 0, /* src_mask */
- 0xffffffff, /* dst_mask */
- false), /* pcrel_offset */
- EMPTY_HOWTO (R_C6000_PCR_H16),
- EMPTY_HOWTO (R_C6000_PCR_L16),
- EMPTY_HOWTO (31),
- EMPTY_HOWTO (32),
- EMPTY_HOWTO (33),
- EMPTY_HOWTO (34),
- EMPTY_HOWTO (35),
- EMPTY_HOWTO (36),
- EMPTY_HOWTO (37),
- EMPTY_HOWTO (38),
- EMPTY_HOWTO (39),
- EMPTY_HOWTO (40),
- EMPTY_HOWTO (41),
- EMPTY_HOWTO (42),
- EMPTY_HOWTO (43),
- EMPTY_HOWTO (44),
- EMPTY_HOWTO (45),
- EMPTY_HOWTO (46),
- EMPTY_HOWTO (47),
- EMPTY_HOWTO (48),
- EMPTY_HOWTO (49),
- EMPTY_HOWTO (50),
- EMPTY_HOWTO (51),
- EMPTY_HOWTO (52),
- EMPTY_HOWTO (53),
- EMPTY_HOWTO (54),
- EMPTY_HOWTO (55),
- EMPTY_HOWTO (56),
- EMPTY_HOWTO (57),
- EMPTY_HOWTO (58),
- EMPTY_HOWTO (59),
- EMPTY_HOWTO (60),
- EMPTY_HOWTO (61),
- EMPTY_HOWTO (62),
- EMPTY_HOWTO (63),
- EMPTY_HOWTO (64),
- EMPTY_HOWTO (65),
- EMPTY_HOWTO (66),
- EMPTY_HOWTO (67),
- EMPTY_HOWTO (68),
- EMPTY_HOWTO (69),
- EMPTY_HOWTO (70),
- EMPTY_HOWTO (71),
- EMPTY_HOWTO (72),
- EMPTY_HOWTO (73),
- EMPTY_HOWTO (74),
- EMPTY_HOWTO (75),
- EMPTY_HOWTO (76),
- EMPTY_HOWTO (77),
- EMPTY_HOWTO (78),
- EMPTY_HOWTO (79),
- EMPTY_HOWTO (80),
- EMPTY_HOWTO (81),
- EMPTY_HOWTO (82),
- EMPTY_HOWTO (83),
- EMPTY_HOWTO (84),
- EMPTY_HOWTO (85),
- EMPTY_HOWTO (86),
- EMPTY_HOWTO (87),
- EMPTY_HOWTO (88),
- EMPTY_HOWTO (89),
- EMPTY_HOWTO (90),
- EMPTY_HOWTO (91),
- EMPTY_HOWTO (92),
- EMPTY_HOWTO (93),
- EMPTY_HOWTO (94),
- EMPTY_HOWTO (95),
- EMPTY_HOWTO (96),
- EMPTY_HOWTO (97),
- EMPTY_HOWTO (98),
- EMPTY_HOWTO (99),
- EMPTY_HOWTO (100),
- EMPTY_HOWTO (101),
- EMPTY_HOWTO (102),
- EMPTY_HOWTO (103),
- EMPTY_HOWTO (104),
- EMPTY_HOWTO (105),
- EMPTY_HOWTO (106),
- EMPTY_HOWTO (107),
- EMPTY_HOWTO (108),
- EMPTY_HOWTO (109),
- EMPTY_HOWTO (110),
- EMPTY_HOWTO (111),
- EMPTY_HOWTO (112),
- EMPTY_HOWTO (113),
- EMPTY_HOWTO (114),
- EMPTY_HOWTO (115),
- EMPTY_HOWTO (116),
- EMPTY_HOWTO (117),
- EMPTY_HOWTO (118),
- EMPTY_HOWTO (119),
- EMPTY_HOWTO (120),
- EMPTY_HOWTO (121),
- EMPTY_HOWTO (122),
- EMPTY_HOWTO (123),
- EMPTY_HOWTO (124),
- EMPTY_HOWTO (125),
- EMPTY_HOWTO (126),
- EMPTY_HOWTO (127),
- EMPTY_HOWTO (128),
- EMPTY_HOWTO (129),
- EMPTY_HOWTO (130),
- EMPTY_HOWTO (131),
- EMPTY_HOWTO (132),
- EMPTY_HOWTO (133),
- EMPTY_HOWTO (134),
- EMPTY_HOWTO (135),
- EMPTY_HOWTO (136),
- EMPTY_HOWTO (137),
- EMPTY_HOWTO (138),
- EMPTY_HOWTO (139),
- EMPTY_HOWTO (140),
- EMPTY_HOWTO (141),
- EMPTY_HOWTO (142),
- EMPTY_HOWTO (143),
- EMPTY_HOWTO (144),
- EMPTY_HOWTO (145),
- EMPTY_HOWTO (146),
- EMPTY_HOWTO (147),
- EMPTY_HOWTO (148),
- EMPTY_HOWTO (149),
- EMPTY_HOWTO (150),
- EMPTY_HOWTO (151),
- EMPTY_HOWTO (152),
- EMPTY_HOWTO (153),
- EMPTY_HOWTO (154),
- EMPTY_HOWTO (155),
- EMPTY_HOWTO (156),
- EMPTY_HOWTO (157),
- EMPTY_HOWTO (158),
- EMPTY_HOWTO (159),
- EMPTY_HOWTO (160),
- EMPTY_HOWTO (161),
- EMPTY_HOWTO (162),
- EMPTY_HOWTO (163),
- EMPTY_HOWTO (164),
- EMPTY_HOWTO (165),
- EMPTY_HOWTO (166),
- EMPTY_HOWTO (167),
- EMPTY_HOWTO (168),
- EMPTY_HOWTO (169),
- EMPTY_HOWTO (170),
- EMPTY_HOWTO (171),
- EMPTY_HOWTO (172),
- EMPTY_HOWTO (173),
- EMPTY_HOWTO (174),
- EMPTY_HOWTO (175),
- EMPTY_HOWTO (176),
- EMPTY_HOWTO (177),
- EMPTY_HOWTO (178),
- EMPTY_HOWTO (179),
- EMPTY_HOWTO (180),
- EMPTY_HOWTO (181),
- EMPTY_HOWTO (182),
- EMPTY_HOWTO (183),
- EMPTY_HOWTO (184),
- EMPTY_HOWTO (185),
- EMPTY_HOWTO (186),
- EMPTY_HOWTO (187),
- EMPTY_HOWTO (188),
- EMPTY_HOWTO (189),
- EMPTY_HOWTO (190),
- EMPTY_HOWTO (191),
- EMPTY_HOWTO (192),
- EMPTY_HOWTO (193),
- EMPTY_HOWTO (194),
- EMPTY_HOWTO (195),
- EMPTY_HOWTO (196),
- EMPTY_HOWTO (197),
- EMPTY_HOWTO (198),
- EMPTY_HOWTO (199),
- EMPTY_HOWTO (200),
- EMPTY_HOWTO (201),
- EMPTY_HOWTO (202),
- EMPTY_HOWTO (203),
- EMPTY_HOWTO (204),
- EMPTY_HOWTO (205),
- EMPTY_HOWTO (206),
- EMPTY_HOWTO (207),
- EMPTY_HOWTO (208),
- EMPTY_HOWTO (209),
- EMPTY_HOWTO (210),
- EMPTY_HOWTO (211),
- EMPTY_HOWTO (212),
- EMPTY_HOWTO (213),
- EMPTY_HOWTO (214),
- EMPTY_HOWTO (215),
- EMPTY_HOWTO (216),
- EMPTY_HOWTO (217),
- EMPTY_HOWTO (218),
- EMPTY_HOWTO (219),
- EMPTY_HOWTO (220),
- EMPTY_HOWTO (221),
- EMPTY_HOWTO (222),
- EMPTY_HOWTO (223),
- EMPTY_HOWTO (224),
- EMPTY_HOWTO (225),
- EMPTY_HOWTO (226),
- EMPTY_HOWTO (227),
- EMPTY_HOWTO (228),
- EMPTY_HOWTO (229),
- EMPTY_HOWTO (230),
- EMPTY_HOWTO (231),
- EMPTY_HOWTO (232),
- EMPTY_HOWTO (233),
- EMPTY_HOWTO (234),
- EMPTY_HOWTO (235),
- EMPTY_HOWTO (236),
- EMPTY_HOWTO (237),
- EMPTY_HOWTO (238),
- EMPTY_HOWTO (239),
- EMPTY_HOWTO (240),
- EMPTY_HOWTO (241),
- EMPTY_HOWTO (242),
- EMPTY_HOWTO (243),
- EMPTY_HOWTO (244),
- EMPTY_HOWTO (245),
- EMPTY_HOWTO (246),
- EMPTY_HOWTO (247),
- EMPTY_HOWTO (248),
- EMPTY_HOWTO (249),
- EMPTY_HOWTO (250),
- EMPTY_HOWTO (251),
- EMPTY_HOWTO (252),
- HOWTO (R_C6000_ALIGN, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_ALIGN", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_FPHEAD, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_FPHEAD", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false), /* pcrel_offset */
- HOWTO (R_C6000_NOCMP, /* type */
- 0, /* rightshift */
- 0, /* size (0 = byte, 1 = short, 2 = long) */
- 0, /* bitsize */
- false, /* pc_relative */
- 0, /* bitpos */
- complain_overflow_dont,/* complain_on_overflow */
- bfd_elf_generic_reloc, /* special_function */
- "R_C6000_NOCMP", /* name */
- true, /* partial_inplace */
- 0, /* src_mask */
- 0, /* dst_mask */
- false) /* pcrel_offset */
- };
- /* Map BFD relocations to ELF relocations. */
- typedef struct
- {
- bfd_reloc_code_real_type bfd_reloc_val;
- enum elf_tic6x_reloc_type elf_reloc_val;
- } tic6x_reloc_map;
- static const tic6x_reloc_map elf32_tic6x_reloc_map[] =
- {
- { BFD_RELOC_NONE, R_C6000_NONE },
- { BFD_RELOC_32, R_C6000_ABS32 },
- { BFD_RELOC_16, R_C6000_ABS16 },
- { BFD_RELOC_8, R_C6000_ABS8 },
- { BFD_RELOC_C6000_PCR_S21, R_C6000_PCR_S21 },
- { BFD_RELOC_C6000_PCR_S12, R_C6000_PCR_S12 },
- { BFD_RELOC_C6000_PCR_S10, R_C6000_PCR_S10 },
- { BFD_RELOC_C6000_PCR_S7, R_C6000_PCR_S7 },
- { BFD_RELOC_C6000_ABS_S16, R_C6000_ABS_S16 },
- { BFD_RELOC_C6000_ABS_L16, R_C6000_ABS_L16 },
- { BFD_RELOC_C6000_ABS_H16, R_C6000_ABS_H16 },
- { BFD_RELOC_C6000_SBR_U15_B, R_C6000_SBR_U15_B },
- { BFD_RELOC_C6000_SBR_U15_H, R_C6000_SBR_U15_H },
- { BFD_RELOC_C6000_SBR_U15_W, R_C6000_SBR_U15_W },
- { BFD_RELOC_C6000_SBR_S16, R_C6000_SBR_S16 },
- { BFD_RELOC_C6000_SBR_L16_B, R_C6000_SBR_L16_B },
- { BFD_RELOC_C6000_SBR_L16_H, R_C6000_SBR_L16_H },
- { BFD_RELOC_C6000_SBR_L16_W, R_C6000_SBR_L16_W },
- { BFD_RELOC_C6000_SBR_H16_B, R_C6000_SBR_H16_B },
- { BFD_RELOC_C6000_SBR_H16_H, R_C6000_SBR_H16_H },
- { BFD_RELOC_C6000_SBR_H16_W, R_C6000_SBR_H16_W },
- { BFD_RELOC_C6000_SBR_GOT_U15_W, R_C6000_SBR_GOT_U15_W },
- { BFD_RELOC_C6000_SBR_GOT_L16_W, R_C6000_SBR_GOT_L16_W },
- { BFD_RELOC_C6000_SBR_GOT_H16_W, R_C6000_SBR_GOT_H16_W },
- { BFD_RELOC_C6000_DSBT_INDEX, R_C6000_DSBT_INDEX },
- { BFD_RELOC_C6000_PREL31, R_C6000_PREL31 },
- { BFD_RELOC_C6000_COPY, R_C6000_COPY },
- { BFD_RELOC_C6000_JUMP_SLOT, R_C6000_JUMP_SLOT },
- { BFD_RELOC_C6000_EHTYPE, R_C6000_EHTYPE },
- { BFD_RELOC_C6000_PCR_H16, R_C6000_PCR_H16 },
- { BFD_RELOC_C6000_PCR_L16, R_C6000_PCR_L16 },
- { BFD_RELOC_C6000_ALIGN, R_C6000_ALIGN },
- { BFD_RELOC_C6000_FPHEAD, R_C6000_FPHEAD },
- { BFD_RELOC_C6000_NOCMP, R_C6000_NOCMP }
- };
- static reloc_howto_type *
- elf32_tic6x_reloc_type_lookup (bfd *abfd, bfd_reloc_code_real_type code)
- {
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE (elf32_tic6x_reloc_map); i++)
- if (elf32_tic6x_reloc_map[i].bfd_reloc_val == code)
- {
- enum elf_tic6x_reloc_type elf_reloc_val;
- reloc_howto_type *howto;
- elf_reloc_val = elf32_tic6x_reloc_map[i].elf_reloc_val;
- if (elf32_tic6x_tdata (abfd)->use_rela_p)
- howto = &elf32_tic6x_howto_table[elf_reloc_val];
- else
- howto = &elf32_tic6x_howto_table_rel[elf_reloc_val];
- /* Some relocations are RELA-only; do not return them for
- REL. */
- if (howto->name == NULL)
- howto = NULL;
- return howto;
- }
- return NULL;
- }
- static reloc_howto_type *
- elf32_tic6x_reloc_name_lookup (bfd *abfd, const char *r_name)
- {
- if (elf32_tic6x_tdata (abfd)->use_rela_p)
- {
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table); i++)
- if (elf32_tic6x_howto_table[i].name != NULL
- && strcasecmp (elf32_tic6x_howto_table[i].name, r_name) == 0)
- return &elf32_tic6x_howto_table[i];
- }
- else
- {
- unsigned int i;
- for (i = 0; i < ARRAY_SIZE (elf32_tic6x_howto_table_rel); i++)
- if (elf32_tic6x_howto_table_rel[i].name != NULL
- && strcasecmp (elf32_tic6x_howto_table_rel[i].name, r_name) == 0)
- return &elf32_tic6x_howto_table_rel[i];
- }
- return NULL;
- }
- static bool
- elf32_tic6x_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
- Elf_Internal_Rela *elf_reloc)
- {
- unsigned int r_type;
- r_type = ELF32_R_TYPE (elf_reloc->r_info);
- if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table))
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- bfd_reloc->howto = &elf32_tic6x_howto_table[r_type];
- if (bfd_reloc->howto == NULL || bfd_reloc->howto->name == NULL)
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- return true;
- }
- static bool
- elf32_tic6x_info_to_howto_rel (bfd *abfd ATTRIBUTE_UNUSED, arelent *bfd_reloc,
- Elf_Internal_Rela *elf_reloc)
- {
- unsigned int r_type;
- r_type = ELF32_R_TYPE (elf_reloc->r_info);
- if (r_type >= ARRAY_SIZE (elf32_tic6x_howto_table_rel))
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- bfd_reloc->howto = &elf32_tic6x_howto_table_rel[r_type];
- if (bfd_reloc->howto == NULL || bfd_reloc->howto->name == NULL)
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- abfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- return true;
- }
- void
- elf32_tic6x_set_use_rela_p (bfd *abfd, bool use_rela_p)
- {
- elf32_tic6x_tdata (abfd)->use_rela_p = use_rela_p;
- }
- /* Create a C6X ELF linker hash table. */
- static struct bfd_link_hash_table *
- elf32_tic6x_link_hash_table_create (bfd *abfd)
- {
- struct elf32_tic6x_link_hash_table *ret;
- size_t amt = sizeof (struct elf32_tic6x_link_hash_table);
- ret = bfd_zmalloc (amt);
- if (ret == NULL)
- return NULL;
- if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd,
- _bfd_elf_link_hash_newfunc,
- sizeof (struct elf_link_hash_entry),
- TIC6X_ELF_DATA))
- {
- free (ret);
- return NULL;
- }
- ret->obfd = abfd;
- ret->elf.is_relocatable_executable = 1;
- return &ret->elf.root;
- }
- static bool
- elf32_tic6x_final_link (bfd *abfd, struct bfd_link_info *info)
- {
- if (bfd_link_pic (info))
- {
- obj_attribute *out_attr;
- out_attr = elf_known_obj_attributes_proc (abfd);
- if (out_attr[Tag_ABI_PIC].i == 0)
- {
- _bfd_error_handler (_("warning: generating a shared library "
- "containing non-PIC code"));
- }
- if (out_attr[Tag_ABI_PID].i == 0)
- {
- _bfd_error_handler (_("warning: generating a shared library "
- "containing non-PID code"));
- }
- }
- /* Invoke the regular ELF backend linker to do all the work. */
- if (!bfd_elf_final_link (abfd, info))
- return false;
- return true;
- }
- /* Called to pass PARAMS to the backend. We store them in the hash table
- associated with INFO. */
- void
- elf32_tic6x_setup (struct bfd_link_info *info,
- struct elf32_tic6x_params *params)
- {
- struct elf32_tic6x_link_hash_table *htab = elf32_tic6x_hash_table (info);
- htab->params = *params;
- }
- /* Determine if we're dealing with a DSBT object. */
- static bool
- elf32_tic6x_using_dsbt (bfd *abfd)
- {
- return bfd_elf_get_obj_attr_int (abfd, OBJ_ATTR_PROC,
- Tag_ABI_DSBT);
- }
- /* Create .plt, .rela.plt, .got, .got.plt, .rela.got and .dsbt
- sections in DYNOBJ, and set up shortcuts to them in our hash
- table. */
- static bool
- elf32_tic6x_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info)
- {
- struct elf32_tic6x_link_hash_table *htab;
- flagword flags;
- htab = elf32_tic6x_hash_table (info);
- if (htab == NULL)
- return false;
- if (!_bfd_elf_create_dynamic_sections (dynobj, info))
- return false;
- /* Create .dsbt */
- flags = (SEC_ALLOC | SEC_LOAD
- | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED);
- htab->dsbt = bfd_make_section_anyway_with_flags (dynobj, ".dsbt",
- flags);
- if (htab->dsbt == NULL
- || !bfd_set_section_alignment (htab->dsbt, 2)
- || !bfd_set_section_alignment (htab->elf.splt, 5))
- return false;
- return true;
- }
- static bool
- elf32_tic6x_mkobject (bfd *abfd)
- {
- bool ret;
- ret = bfd_elf_allocate_object (abfd, sizeof (struct elf32_tic6x_obj_tdata),
- TIC6X_ELF_DATA);
- if (ret)
- elf32_tic6x_set_use_rela_p (abfd, true);
- return ret;
- }
- /* Install relocation RELA into section SRELA, incrementing its
- reloc_count. */
- static void
- elf32_tic6x_install_rela (bfd *output_bfd, asection *srela,
- Elf_Internal_Rela *rela)
- {
- bfd_byte *loc;
- bfd_vma off = srela->reloc_count++ * sizeof (Elf32_External_Rela);
- loc = srela->contents + off;
- BFD_ASSERT (off < srela->size);
- bfd_elf32_swap_reloca_out (output_bfd, rela, loc);
- }
- /* Create a dynamic reloc against the GOT at offset OFFSET. The contents
- of the GOT at this offset have been initialized with the relocation. */
- static void
- elf32_tic6x_make_got_dynreloc (bfd *output_bfd,
- struct elf32_tic6x_link_hash_table *htab,
- asection *sym_sec, bfd_vma offset)
- {
- asection *sgot = htab->elf.sgot;
- Elf_Internal_Rela outrel;
- int dynindx;
- outrel.r_offset = sgot->output_section->vma + sgot->output_offset + offset;
- outrel.r_addend = bfd_get_32 (output_bfd, sgot->contents + offset);
- if (sym_sec && sym_sec->output_section
- && ! bfd_is_abs_section (sym_sec->output_section)
- && ! bfd_is_und_section (sym_sec->output_section))
- {
- dynindx = elf_section_data (sym_sec->output_section)->dynindx;
- outrel.r_addend -= sym_sec->output_section->vma;
- }
- else
- {
- dynindx = 0;
- }
- outrel.r_info = ELF32_R_INFO (dynindx, R_C6000_ABS32);
- elf32_tic6x_install_rela (output_bfd, htab->elf.srelgot, &outrel);
- }
- /* Finish up dynamic symbol handling. We set the contents of various
- dynamic sections here. */
- static bool
- elf32_tic6x_finish_dynamic_symbol (bfd * output_bfd,
- struct bfd_link_info *info,
- struct elf_link_hash_entry *h,
- Elf_Internal_Sym * sym)
- {
- struct elf32_tic6x_link_hash_table *htab;
- htab = elf32_tic6x_hash_table (info);
- if (h->plt.offset != (bfd_vma) -1)
- {
- bfd_vma plt_index;
- bfd_vma got_section_offset, got_dp_offset, rela_offset;
- Elf_Internal_Rela rela;
- bfd_byte *loc;
- asection *plt, *gotplt, *relplt;
- const struct elf_backend_data *bed;
- bed = get_elf_backend_data (output_bfd);
- BFD_ASSERT (htab->elf.splt != NULL);
- plt = htab->elf.splt;
- gotplt = htab->elf.sgotplt;
- relplt = htab->elf.srelplt;
- /* This symbol has an entry in the procedure linkage table. Set
- it up. */
- if ((h->dynindx == -1
- && !((h->forced_local || bfd_link_executable (info))
- && h->def_regular
- && h->type == STT_GNU_IFUNC))
- || plt == NULL
- || gotplt == NULL
- || relplt == NULL)
- abort ();
- /* Get the index in the procedure linkage table which
- corresponds to this symbol. This is the index of this symbol
- in all the symbols for which we are making plt entries. The
- first entry in the procedure linkage table is reserved.
- Get the offset into the .got table of the entry that
- corresponds to this function. Each .got entry is 4 bytes.
- The first three are reserved.
- For static executables, we don't reserve anything. */
- plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1;
- got_section_offset = plt_index + bed->got_header_size / 4;
- got_dp_offset = got_section_offset + htab->params.dsbt_size;
- rela_offset = plt_index * sizeof (Elf32_External_Rela);
- got_section_offset *= 4;
- /* Fill in the entry in the procedure linkage table. */
- /* ldw .d2t2 *+B14($GOT(f)), b2 */
- bfd_put_32 (output_bfd, got_dp_offset << 8 | 0x0100006e,
- plt->contents + h->plt.offset);
- /* mvk .s2 low(rela_offset), b0 */
- bfd_put_32 (output_bfd, (rela_offset & 0xffff) << 7 | 0x0000002a,
- plt->contents + h->plt.offset + 4);
- /* mvkh .s2 high(rela_offset), b0 */
- bfd_put_32 (output_bfd, ((rela_offset >> 16) & 0xffff) << 7 | 0x0000006a,
- plt->contents + h->plt.offset + 8);
- /* nop 2 */
- bfd_put_32 (output_bfd, 0x00002000,
- plt->contents + h->plt.offset + 12);
- /* b .s2 b2 */
- bfd_put_32 (output_bfd, 0x00080362,
- plt->contents + h->plt.offset + 16);
- /* nop 5 */
- bfd_put_32 (output_bfd, 0x00008000,
- plt->contents + h->plt.offset + 20);
- /* Fill in the entry in the global offset table. */
- bfd_put_32 (output_bfd,
- (plt->output_section->vma + plt->output_offset),
- gotplt->contents + got_section_offset);
- /* Fill in the entry in the .rel.plt section. */
- rela.r_offset = (gotplt->output_section->vma
- + gotplt->output_offset
- + got_section_offset);
- rela.r_info = ELF32_R_INFO (h->dynindx, R_C6000_JUMP_SLOT);
- rela.r_addend = 0;
- loc = relplt->contents + rela_offset;
- bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
- if (!h->def_regular)
- {
- /* Mark the symbol as undefined, rather than as defined in
- the .plt section. */
- sym->st_shndx = SHN_UNDEF;
- sym->st_value = 0;
- }
- }
- if (h->got.offset != (bfd_vma) -1)
- {
- asection *sgot;
- asection *srela;
- /* This symbol has an entry in the global offset table.
- Set it up. */
- sgot = htab->elf.sgot;
- srela = htab->elf.srelgot;
- BFD_ASSERT (sgot != NULL && srela != NULL);
- /* If this is a -Bsymbolic link, and the symbol is defined
- locally, we just want to emit a RELATIVE reloc. Likewise if
- the symbol was forced to be local because of a version file.
- The entry in the global offset table will already have been
- initialized in the relocate_section function. */
- if (bfd_link_pic (info)
- && (SYMBOLIC_BIND (info, h)
- || h->dynindx == -1 || h->forced_local) && h->def_regular)
- {
- asection *s = h->root.u.def.section;
- elf32_tic6x_make_got_dynreloc (output_bfd, htab, s,
- h->got.offset & ~(bfd_vma) 1);
- }
- else
- {
- Elf_Internal_Rela outrel;
- bfd_put_32 (output_bfd, (bfd_vma) 0,
- sgot->contents + (h->got.offset & ~(bfd_vma) 1));
- outrel.r_offset = (sgot->output_section->vma
- + sgot->output_offset
- + (h->got.offset & ~(bfd_vma) 1));
- outrel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_ABS32);
- outrel.r_addend = 0;
- elf32_tic6x_install_rela (output_bfd, srela, &outrel);
- }
- }
- if (h->needs_copy)
- {
- Elf_Internal_Rela rel;
- asection *s;
- /* This symbol needs a copy reloc. Set it up. */
- if (h->dynindx == -1
- || (h->root.type != bfd_link_hash_defined
- && h->root.type != bfd_link_hash_defweak)
- || htab->elf.srelbss == NULL
- || htab->elf.sreldynrelro == NULL)
- abort ();
- rel.r_offset = (h->root.u.def.value
- + h->root.u.def.section->output_section->vma
- + h->root.u.def.section->output_offset);
- rel.r_info = ELF32_R_INFO (h->dynindx, R_C6000_COPY);
- rel.r_addend = 0;
- if (h->root.u.def.section == htab->elf.sdynrelro)
- s = htab->elf.sreldynrelro;
- else
- s = htab->elf.srelbss;
- elf32_tic6x_install_rela (output_bfd, s, &rel);
- }
- /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
- if (h == elf_hash_table (info)->hdynamic
- || h == elf_hash_table (info)->hgot)
- sym->st_shndx = SHN_ABS;
- return true;
- }
- /* Unwinding tables are not referenced directly. This pass marks them as
- required if the corresponding code section is marked. */
- static bool
- elf32_tic6x_gc_mark_extra_sections (struct bfd_link_info *info,
- elf_gc_mark_hook_fn gc_mark_hook)
- {
- bfd *sub;
- Elf_Internal_Shdr **elf_shdrp;
- bool again;
- _bfd_elf_gc_mark_extra_sections (info, gc_mark_hook);
- /* Marking EH data may cause additional code sections to be marked,
- requiring multiple passes. */
- again = true;
- while (again)
- {
- again = false;
- for (sub = info->input_bfds; sub != NULL; sub = sub->link.next)
- {
- asection *o;
- if (! is_tic6x_elf (sub))
- continue;
- elf_shdrp = elf_elfsections (sub);
- for (o = sub->sections; o != NULL; o = o->next)
- {
- Elf_Internal_Shdr *hdr;
- hdr = &elf_section_data (o)->this_hdr;
- if (hdr->sh_type == SHT_C6000_UNWIND
- && hdr->sh_link
- && hdr->sh_link < elf_numsections (sub)
- && !o->gc_mark
- && elf_shdrp[hdr->sh_link]->bfd_section->gc_mark)
- {
- again = true;
- if (!_bfd_elf_gc_mark (info, o, gc_mark_hook))
- return false;
- }
- }
- }
- }
- return true;
- }
- /* Return TRUE if this is an unwinding table index. */
- static bool
- is_tic6x_elf_unwind_section_name (const char *name)
- {
- return (startswith (name, ELF_STRING_C6000_unwind)
- || startswith (name, ELF_STRING_C6000_unwind_once));
- }
- /* Set the type and flags for an unwinding index table. We do this by
- the section name, which is a hack, but ought to work. */
- static bool
- elf32_tic6x_fake_sections (bfd *abfd ATTRIBUTE_UNUSED,
- Elf_Internal_Shdr *hdr, asection *sec)
- {
- const char * name;
- name = bfd_section_name (sec);
- if (is_tic6x_elf_unwind_section_name (name))
- {
- hdr->sh_type = SHT_C6000_UNWIND;
- hdr->sh_flags |= SHF_LINK_ORDER;
- }
- return true;
- }
- /* Adjust a symbol defined by a dynamic object and referenced by a
- regular object. The current definition is in some section of the
- dynamic object, but we're not including those sections. We have to
- change the definition to something the rest of the link can
- understand. */
- static bool
- elf32_tic6x_adjust_dynamic_symbol (struct bfd_link_info *info,
- struct elf_link_hash_entry *h)
- {
- struct elf32_tic6x_link_hash_table *htab;
- bfd *dynobj;
- asection *s, *srel;
- dynobj = elf_hash_table (info)->dynobj;
- /* Make sure we know what is going on here. */
- BFD_ASSERT (dynobj != NULL
- && (h->needs_plt
- || h->is_weakalias
- || (h->def_dynamic && h->ref_regular && !h->def_regular)));
- /* If this is a function, put it in the procedure linkage table. We
- will fill in the contents of the procedure linkage table later,
- when we know the address of the .got section. */
- if (h->type == STT_FUNC
- || h->needs_plt)
- {
- if (h->plt.refcount <= 0
- || SYMBOL_CALLS_LOCAL (info, h)
- || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT
- && h->root.type == bfd_link_hash_undefweak))
- {
- /* This case can occur if we saw a PLT32 reloc in an input
- file, but the symbol was never referred to by a dynamic
- object, or if all references were garbage collected. In
- such a case, we don't actually need to build a procedure
- linkage table, and we can just do a PC32 reloc instead. */
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
- return true;
- }
- /* If this is a weak symbol, and there is a real definition, the
- processor independent code will have arranged for us to see the
- real definition first, and we can just use the same value. */
- if (h->is_weakalias)
- {
- struct elf_link_hash_entry *def = weakdef (h);
- BFD_ASSERT (def->root.type == bfd_link_hash_defined);
- h->root.u.def.section = def->root.u.def.section;
- h->root.u.def.value = def->root.u.def.value;
- h->non_got_ref = def->non_got_ref;
- return true;
- }
- /* This is a reference to a symbol defined by a dynamic object which
- is not a function. */
- /* If we are creating a shared library, we must presume that the
- only references to the symbol are via the global offset table.
- For such cases we need not do anything here; the relocations will
- be handled correctly by relocate_section. */
- if (bfd_link_pic (info))
- return true;
- /* If there are no references to this symbol that do not use the
- GOT, we don't need to generate a copy reloc. */
- if (!h->non_got_ref)
- return true;
- /* If -z nocopyreloc was given, we won't generate them either. */
- if (info->nocopyreloc)
- {
- h->non_got_ref = 0;
- return true;
- }
- htab = elf32_tic6x_hash_table (info);
- if (htab == NULL)
- return false;
- /* We must allocate the symbol in our .dynbss section, which will
- become part of the .bss section of the executable. There will be
- an entry for this symbol in the .dynsym section. The dynamic
- object will contain position independent code, so all references
- from the dynamic object to this symbol will go through the global
- offset table. The dynamic linker will use the .dynsym entry to
- determine the address it must put in the global offset table, so
- both the dynamic object and the regular object will refer to the
- same memory location for the variable. */
- /* We must generate a R_C6000_COPY reloc to tell the dynamic linker to
- copy the initial value out of the dynamic object and into the
- runtime process image. */
- if ((h->root.u.def.section->flags & SEC_READONLY) != 0)
- {
- s = htab->elf.sdynrelro;
- srel = htab->elf.sreldynrelro;
- }
- else
- {
- s = htab->elf.sdynbss;
- srel = htab->elf.srelbss;
- }
- if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0)
- {
- srel->size += sizeof (Elf32_External_Rela);
- h->needs_copy = 1;
- }
- return _bfd_elf_adjust_dynamic_copy (info, h, s);
- }
- static bool
- elf32_tic6x_new_section_hook (bfd *abfd, asection *sec)
- {
- bool ret;
- /* Allocate target specific section data. */
- if (!sec->used_by_bfd)
- {
- _tic6x_elf_section_data *sdata;
- size_t amt = sizeof (*sdata);
- sdata = (_tic6x_elf_section_data *) bfd_zalloc (abfd, amt);
- if (sdata == NULL)
- return false;
- sec->used_by_bfd = sdata;
- }
- ret = _bfd_elf_new_section_hook (abfd, sec);
- sec->use_rela_p = elf32_tic6x_tdata (abfd)->use_rela_p;
- return ret;
- }
- /* Return true if relocation REL against section SEC is a REL rather
- than RELA relocation. RELOCS is the first relocation in the
- section and ABFD is the bfd that contains SEC. */
- static bool
- elf32_tic6x_rel_relocation_p (bfd *abfd, asection *sec,
- const Elf_Internal_Rela *relocs,
- const Elf_Internal_Rela *rel)
- {
- Elf_Internal_Shdr *rel_hdr;
- const struct elf_backend_data *bed;
- /* To determine which flavor of relocation this is, we depend on the
- fact that the INPUT_SECTION's REL_HDR is read before RELA_HDR. */
- rel_hdr = elf_section_data (sec)->rel.hdr;
- if (rel_hdr == NULL)
- return false;
- bed = get_elf_backend_data (abfd);
- return ((size_t) (rel - relocs)
- < NUM_SHDR_ENTRIES (rel_hdr) * bed->s->int_rels_per_ext_rel);
- }
- /* We need dynamic symbols for every section, since segments can
- relocate independently. */
- static bool
- elf32_tic6x_link_omit_section_dynsym (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- asection *p)
- {
- switch (elf_section_data (p)->this_hdr.sh_type)
- {
- case SHT_PROGBITS:
- case SHT_NOBITS:
- /* If sh_type is yet undecided, assume it could be
- SHT_PROGBITS/SHT_NOBITS. */
- case SHT_NULL:
- return false;
- /* There shouldn't be section relative relocations
- against any other section. */
- default:
- return true;
- }
- }
- static int
- elf32_tic6x_relocate_section (bfd *output_bfd,
- struct bfd_link_info *info,
- bfd *input_bfd,
- asection *input_section,
- bfd_byte *contents,
- Elf_Internal_Rela *relocs,
- Elf_Internal_Sym *local_syms,
- asection **local_sections)
- {
- struct elf32_tic6x_link_hash_table *htab;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- bfd_vma *local_got_offsets;
- Elf_Internal_Rela *rel;
- Elf_Internal_Rela *relend;
- bool ok = true;
- htab = elf32_tic6x_hash_table (info);
- symtab_hdr = & elf_symtab_hdr (input_bfd);
- sym_hashes = elf_sym_hashes (input_bfd);
- local_got_offsets = elf_local_got_offsets (input_bfd);
- relend = relocs + input_section->reloc_count;
- for (rel = relocs; rel < relend; rel ++)
- {
- int r_type;
- unsigned long r_symndx;
- arelent bfd_reloc;
- reloc_howto_type *howto;
- Elf_Internal_Sym *sym;
- asection *sec;
- struct elf_link_hash_entry *h;
- bfd_vma off, off2, relocation;
- bool unresolved_reloc;
- bfd_reloc_status_type r;
- struct bfd_link_hash_entry *sbh;
- bool is_rel;
- bool res;
- r_type = ELF32_R_TYPE (rel->r_info);
- r_symndx = ELF32_R_SYM (rel->r_info);
- is_rel = elf32_tic6x_rel_relocation_p (input_bfd, input_section,
- relocs, rel);
- if (is_rel)
- res = elf32_tic6x_info_to_howto_rel (input_bfd, &bfd_reloc, rel);
- else
- res = elf32_tic6x_info_to_howto (input_bfd, &bfd_reloc, rel);
- if (!res || (howto = bfd_reloc.howto) == NULL)
- {
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- h = NULL;
- sym = NULL;
- sec = NULL;
- unresolved_reloc = false;
- if (r_symndx < symtab_hdr->sh_info)
- {
- sym = local_syms + r_symndx;
- sec = local_sections[r_symndx];
- relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
- }
- else
- {
- bool warned, ignored;
- RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
- r_symndx, symtab_hdr, sym_hashes,
- h, sec, relocation,
- unresolved_reloc, warned, ignored);
- }
- if (sec != NULL && discarded_section (sec))
- RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
- rel, 1, relend, howto, 0, contents);
- if (bfd_link_relocatable (info))
- {
- if (is_rel
- && sym != NULL
- && ELF_ST_TYPE (sym->st_info) == STT_SECTION)
- {
- rel->r_addend = 0;
- relocation = sec->output_offset + sym->st_value;
- r = _bfd_relocate_contents (howto, input_bfd, relocation,
- contents + rel->r_offset);
- goto done_reloc;
- }
- continue;
- }
- switch (r_type)
- {
- case R_C6000_NONE:
- case R_C6000_ALIGN:
- case R_C6000_FPHEAD:
- case R_C6000_NOCMP:
- /* No action needed. */
- continue;
- case R_C6000_PCR_S21:
- /* A branch to an undefined weak symbol is turned into a
- "b .s2 B3" instruction if the existing insn is of the
- form "b .s2 symbol". */
- if (h ? h->root.type == bfd_link_hash_undefweak
- && (htab->elf.splt == NULL || h->plt.offset == (bfd_vma) -1)
- : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
- {
- unsigned long oldval;
- oldval = bfd_get_32 (input_bfd, contents + rel->r_offset);
- if ((oldval & 0x7e) == 0x12)
- {
- oldval &= 0xF0000001;
- bfd_put_32 (input_bfd, oldval | 0x000c0362,
- contents + rel->r_offset);
- r = bfd_reloc_ok;
- goto done_reloc;
- }
- }
- /* Fall through. */
- case R_C6000_PCR_S12:
- case R_C6000_PCR_S10:
- case R_C6000_PCR_S7:
- if (h != NULL
- && h->plt.offset != (bfd_vma) -1
- && htab->elf.splt != NULL)
- {
- relocation = (htab->elf.splt->output_section->vma
- + htab->elf.splt->output_offset
- + h->plt.offset);
- }
- /* Generic PC-relative handling produces a value relative to
- the exact location of the relocation. Adjust it to be
- relative to the start of the fetch packet instead. */
- relocation += (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset) & 0x1f;
- unresolved_reloc = false;
- break;
- case R_C6000_PCR_H16:
- case R_C6000_PCR_L16:
- off = (input_section->output_section->vma
- + input_section->output_offset
- + rel->r_offset);
- /* These must be calculated as R = S - FP(FP(PC) - A).
- PC, here, is the value we just computed in OFF. RELOCATION
- has the address of S + A. */
- relocation -= rel->r_addend;
- off2 = ((off & ~(bfd_vma)0x1f) - rel->r_addend) & (bfd_vma)~0x1f;
- off2 = relocation - off2;
- relocation = off + off2;
- break;
- case R_C6000_DSBT_INDEX:
- relocation = elf32_tic6x_hash_table (info)->params.dsbt_index;
- if (!bfd_link_pic (info) || relocation != 0)
- break;
- /* fall through */
- case R_C6000_ABS32:
- case R_C6000_ABS16:
- case R_C6000_ABS8:
- case R_C6000_ABS_S16:
- case R_C6000_ABS_L16:
- case R_C6000_ABS_H16:
- /* When generating a shared object or relocatable executable, these
- relocations are copied into the output file to be resolved at
- run time. */
- if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
- && (input_section->flags & SEC_ALLOC)
- && (h == NULL
- || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
- || h->root.type != bfd_link_hash_undefweak))
- {
- Elf_Internal_Rela outrel;
- bool skip, relocate;
- asection *sreloc;
- unresolved_reloc = false;
- sreloc = elf_section_data (input_section)->sreloc;
- BFD_ASSERT (sreloc != NULL && sreloc->contents != NULL);
- skip = false;
- relocate = false;
- outrel.r_offset =
- _bfd_elf_section_offset (output_bfd, info, input_section,
- rel->r_offset);
- if (outrel.r_offset == (bfd_vma) -1)
- skip = true;
- else if (outrel.r_offset == (bfd_vma) -2)
- skip = true, relocate = true;
- outrel.r_offset += (input_section->output_section->vma
- + input_section->output_offset);
- if (skip)
- memset (&outrel, 0, sizeof outrel);
- else if (h != NULL
- && h->dynindx != -1
- && (!bfd_link_pic (info)
- || !SYMBOLIC_BIND (info, h)
- || !h->def_regular))
- {
- outrel.r_info = ELF32_R_INFO (h->dynindx, r_type);
- outrel.r_addend = rel->r_addend;
- }
- else
- {
- long indx;
- outrel.r_addend = relocation + rel->r_addend;
- if (bfd_is_abs_section (sec))
- indx = 0;
- else if (sec == NULL || sec->owner == NULL)
- {
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- else
- {
- asection *osec;
- osec = sec->output_section;
- indx = elf_section_data (osec)->dynindx;
- outrel.r_addend -= osec->vma;
- BFD_ASSERT (indx != 0);
- }
- outrel.r_info = ELF32_R_INFO (indx, r_type);
- }
- elf32_tic6x_install_rela (output_bfd, sreloc, &outrel);
- /* If this reloc is against an external symbol, we do not want to
- fiddle with the addend. Otherwise, we need to include the symbol
- value so that it becomes an addend for the dynamic reloc. */
- if (! relocate)
- continue;
- }
- /* Generic logic OK. */
- break;
- case R_C6000_SBR_U15_B:
- case R_C6000_SBR_U15_H:
- case R_C6000_SBR_U15_W:
- case R_C6000_SBR_S16:
- case R_C6000_SBR_L16_B:
- case R_C6000_SBR_L16_H:
- case R_C6000_SBR_L16_W:
- case R_C6000_SBR_H16_B:
- case R_C6000_SBR_H16_H:
- case R_C6000_SBR_H16_W:
- sbh = bfd_link_hash_lookup (info->hash, "__c6xabi_DSBT_BASE",
- false, false, true);
- if (sbh != NULL
- && (sbh->type == bfd_link_hash_defined
- || sbh->type == bfd_link_hash_defweak))
- {
- if (h ? (h->root.type == bfd_link_hash_undefweak
- && (htab->elf.splt == NULL
- || h->plt.offset == (bfd_vma) -1))
- : r_symndx != STN_UNDEF && bfd_is_und_section (sec))
- relocation = 0;
- else
- relocation -= (sbh->u.def.value
- + sbh->u.def.section->output_section->vma
- + sbh->u.def.section->output_offset);
- }
- else
- {
- _bfd_error_handler (_("%pB: SB-relative relocation but "
- "__c6xabi_DSBT_BASE not defined"),
- input_bfd);
- ok = false;
- continue;
- }
- break;
- case R_C6000_SBR_GOT_U15_W:
- case R_C6000_SBR_GOT_L16_W:
- case R_C6000_SBR_GOT_H16_W:
- case R_C6000_EHTYPE:
- /* Relocation is to the entry for this symbol in the global
- offset table. */
- if (htab->elf.sgot == NULL)
- abort ();
- if (h != NULL)
- {
- bool dyn;
- off = h->got.offset;
- dyn = htab->elf.dynamic_sections_created;
- if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
- bfd_link_pic (info),
- h)
- || (bfd_link_pic (info)
- && SYMBOL_REFERENCES_LOCAL (info, h))
- || (ELF_ST_VISIBILITY (h->other)
- && h->root.type == bfd_link_hash_undefweak))
- {
- /* This is actually a static link, or it is a
- -Bsymbolic link and the symbol is defined
- locally, or the symbol was forced to be local
- because of a version file. We must initialize
- this entry in the global offset table. Since the
- offset must always be a multiple of 4, we use the
- least significant bit to record whether we have
- initialized it already.
- When doing a dynamic link, we create a .rel.got
- relocation entry to initialize the value. This
- is done in the finish_dynamic_symbol routine. */
- if ((off & 1) != 0)
- off &= ~1;
- else
- {
- bfd_put_32 (output_bfd, relocation,
- htab->elf.sgot->contents + off);
- h->got.offset |= 1;
- if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
- bfd_link_pic (info),
- h)
- && !(ELF_ST_VISIBILITY (h->other)
- && h->root.type == bfd_link_hash_undefweak))
- elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec,
- off);
- }
- }
- else
- unresolved_reloc = false;
- }
- else
- {
- if (local_got_offsets == NULL)
- abort ();
- off = local_got_offsets[r_symndx];
- /* The offset must always be a multiple of 4. We use
- the least significant bit to record whether we have
- already generated the necessary reloc. */
- if ((off & 1) != 0)
- off &= ~1;
- else
- {
- bfd_put_32 (output_bfd, relocation,
- htab->elf.sgot->contents + off);
- if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
- elf32_tic6x_make_got_dynreloc (output_bfd, htab, sec, off);
- local_got_offsets[r_symndx] |= 1;
- }
- }
- if (off >= (bfd_vma) -2)
- abort ();
- if (htab->dsbt)
- relocation = (htab->elf.sgot->output_section->vma
- + htab->elf.sgot->output_offset + off
- - htab->dsbt->output_section->vma
- - htab->dsbt->output_offset);
- else
- relocation = (htab->elf.sgot->output_section->vma
- + htab->elf.sgot->output_offset + off
- - htab->elf.sgotplt->output_section->vma
- - htab->elf.sgotplt->output_offset);
- if (rel->r_addend != 0)
- {
- /* We can't do anything for a relocation which is against
- a symbol *plus offset*. GOT holds relocations for
- symbols. Make this an error; the compiler isn't
- allowed to pass us these kinds of things. */
- if (h == NULL)
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB, section %pA: relocation %s with non-zero addend %"
- PRId64 " against local symbol"),
- input_bfd,
- input_section,
- elf32_tic6x_howto_table[r_type].name,
- (int64_t) rel->r_addend);
- else
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB, section %pA: relocation %s with non-zero addend %"
- PRId64 " against symbol `%s'"),
- input_bfd,
- input_section,
- elf32_tic6x_howto_table[r_type].name,
- (int64_t) rel->r_addend,
- h->root.root.string[0] != '\0' ? h->root.root.string
- : _("[whose name is lost]"));
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- break;
- case R_C6000_PREL31:
- if (h != NULL
- && h->plt.offset != (bfd_vma) -1
- && htab->elf.splt != NULL)
- {
- relocation = (htab->elf.splt->output_section->vma
- + htab->elf.splt->output_offset
- + h->plt.offset);
- }
- break;
- case R_C6000_COPY:
- /* Invalid in relocatable object. */
- default:
- /* Unknown relocation. */
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
- input_bfd, r_type);
- bfd_set_error (bfd_error_bad_value);
- ok = false;
- continue;
- }
- r = _bfd_final_link_relocate (howto, input_bfd, input_section,
- contents, rel->r_offset,
- relocation, rel->r_addend);
- done_reloc:
- if (r == bfd_reloc_ok
- && howto->complain_on_overflow == complain_overflow_bitfield)
- {
- /* Generic overflow handling accepts cases the ABI says
- should be rejected for R_C6000_ABS16 and
- R_C6000_ABS8. */
- bfd_vma value = (relocation + rel->r_addend) & 0xffffffff;
- bfd_vma sbit = 1 << (howto->bitsize - 1);
- bfd_vma sbits = (-(bfd_vma) sbit) & 0xffffffff;
- bfd_vma value_sbits = value & sbits;
- if (value_sbits != 0
- && value_sbits != sbit
- && value_sbits != sbits)
- r = bfd_reloc_overflow;
- }
- if (r != bfd_reloc_ok)
- {
- const char *name;
- const char *error_message;
- if (h != NULL)
- name = h->root.root.string;
- else
- {
- name = bfd_elf_string_from_elf_section (input_bfd,
- symtab_hdr->sh_link,
- sym->st_name);
- if (name == NULL)
- return false;
- if (*name == '\0')
- name = bfd_section_name (sec);
- }
- switch (r)
- {
- case bfd_reloc_overflow:
- /* If the overflowing reloc was to an undefined symbol,
- we have already printed one error message and there
- is no point complaining again. */
- if (!h || h->root.type != bfd_link_hash_undefined)
- (*info->callbacks->reloc_overflow)
- (info, (h ? &h->root : NULL), name, howto->name,
- (bfd_vma) 0, input_bfd, input_section, rel->r_offset);
- break;
- case bfd_reloc_undefined:
- (*info->callbacks->undefined_symbol) (info, name, input_bfd,
- input_section,
- rel->r_offset, true);
- break;
- case bfd_reloc_outofrange:
- error_message = _("out of range");
- goto common_error;
- case bfd_reloc_notsupported:
- error_message = _("unsupported relocation");
- goto common_error;
- case bfd_reloc_dangerous:
- error_message = _("dangerous relocation");
- goto common_error;
- default:
- error_message = _("unknown error");
- /* Fall through. */
- common_error:
- BFD_ASSERT (error_message != NULL);
- (*info->callbacks->reloc_dangerous)
- (info, error_message, input_bfd, input_section, rel->r_offset);
- break;
- }
- }
- }
- return ok;
- }
- /* Look through the relocs for a section during the first phase, and
- calculate needed space in the global offset table, procedure linkage
- table, and dynamic reloc sections. */
- static bool
- elf32_tic6x_check_relocs (bfd *abfd, struct bfd_link_info *info,
- asection *sec, const Elf_Internal_Rela *relocs)
- {
- struct elf32_tic6x_link_hash_table *htab;
- Elf_Internal_Shdr *symtab_hdr;
- struct elf_link_hash_entry **sym_hashes;
- const Elf_Internal_Rela *rel;
- const Elf_Internal_Rela *rel_end;
- asection *sreloc;
- if (bfd_link_relocatable (info))
- return true;
- htab = elf32_tic6x_hash_table (info);
- symtab_hdr = &elf_symtab_hdr (abfd);
- sym_hashes = elf_sym_hashes (abfd);
- /* Create dynamic sections for relocatable executables so that we can
- copy relocations. */
- if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
- && ! htab->elf.dynamic_sections_created)
- {
- if (! _bfd_elf_link_create_dynamic_sections (abfd, info))
- return false;
- }
- sreloc = NULL;
- rel_end = relocs + sec->reloc_count;
- for (rel = relocs; rel < rel_end; rel++)
- {
- unsigned int r_type;
- unsigned int r_symndx;
- struct elf_link_hash_entry *h;
- Elf_Internal_Sym *isym;
- r_symndx = ELF32_R_SYM (rel->r_info);
- r_type = ELF32_R_TYPE (rel->r_info);
- if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
- {
- /* xgettext:c-format */
- _bfd_error_handler (_("%pB: bad symbol index: %d"),
- abfd, r_symndx);
- return false;
- }
- if (r_symndx < symtab_hdr->sh_info)
- {
- /* A local symbol. */
- isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache,
- abfd, r_symndx);
- if (isym == NULL)
- return false;
- h = NULL;
- }
- else
- {
- isym = NULL;
- h = sym_hashes[r_symndx - symtab_hdr->sh_info];
- while (h->root.type == bfd_link_hash_indirect
- || h->root.type == bfd_link_hash_warning)
- h = (struct elf_link_hash_entry *) h->root.u.i.link;
- }
- switch (r_type)
- {
- case R_C6000_PCR_S21:
- case R_C6000_PREL31:
- /* This symbol requires a procedure linkage table entry. We
- actually build the entry in adjust_dynamic_symbol,
- because this might be a case of linking PIC code which is
- never referenced by a dynamic object, in which case we
- don't need to generate a procedure linkage table entry
- after all. */
- /* If this is a local symbol, we resolve it directly without
- creating a procedure linkage table entry. */
- if (h == NULL)
- continue;
- h->needs_plt = 1;
- h->plt.refcount += 1;
- break;
- case R_C6000_SBR_GOT_U15_W:
- case R_C6000_SBR_GOT_L16_W:
- case R_C6000_SBR_GOT_H16_W:
- case R_C6000_EHTYPE:
- /* This symbol requires a global offset table entry. */
- if (h != NULL)
- {
- h->got.refcount += 1;
- }
- else
- {
- bfd_signed_vma *local_got_refcounts;
- /* This is a global offset table entry for a local symbol. */
- local_got_refcounts = elf_local_got_refcounts (abfd);
- if (local_got_refcounts == NULL)
- {
- bfd_size_type size;
- size = symtab_hdr->sh_info;
- size *= (sizeof (bfd_signed_vma)
- + sizeof (bfd_vma) + sizeof(char));
- local_got_refcounts = bfd_zalloc (abfd, size);
- if (local_got_refcounts == NULL)
- return false;
- elf_local_got_refcounts (abfd) = local_got_refcounts;
- }
- local_got_refcounts[r_symndx] += 1;
- }
- if (htab->elf.sgot == NULL)
- {
- if (htab->elf.dynobj == NULL)
- htab->elf.dynobj = abfd;
- if (!_bfd_elf_create_got_section (htab->elf.dynobj, info))
- return false;
- }
- break;
- case R_C6000_DSBT_INDEX:
- /* We'd like to check for nonzero dsbt_index here, but it's
- set up only after check_relocs is called. Instead, we
- store the number of R_C6000_DSBT_INDEX relocs in the
- pc_count field, and potentially discard the extra space
- in elf32_tic6x_allocate_dynrelocs. */
- if (!bfd_link_pic (info))
- break;
- /* fall through */
- case R_C6000_ABS32:
- case R_C6000_ABS16:
- case R_C6000_ABS8:
- case R_C6000_ABS_S16:
- case R_C6000_ABS_L16:
- case R_C6000_ABS_H16:
- /* If we are creating a shared library, and this is a reloc
- against a global symbol, or a non PC relative reloc
- against a local symbol, then we need to copy the reloc
- into the shared library. However, if we are linking with
- -Bsymbolic, we do not need to copy a reloc against a
- global symbol which is defined in an object we are
- including in the link (i.e., DEF_REGULAR is set). At
- this point we have not seen all the input files, so it is
- possible that DEF_REGULAR is not set now but will be set
- later (it is never cleared). In case of a weak definition,
- DEF_REGULAR may be cleared later by a strong definition in
- a shared library. We account for that possibility below by
- storing information in the relocs_copied field of the hash
- table entry. A similar situation occurs when creating
- shared libraries and symbol visibility changes render the
- symbol local.
- If on the other hand, we are creating an executable, we
- may need to keep relocations for symbols satisfied by a
- dynamic library if we manage to avoid copy relocs for the
- symbol. */
- if ((bfd_link_pic (info) || elf32_tic6x_using_dsbt (abfd))
- && (sec->flags & SEC_ALLOC) != 0)
- {
- struct elf_dyn_relocs *p;
- struct elf_dyn_relocs **head;
- /* We must copy these reloc types into the output file.
- Create a reloc section in dynobj and make room for
- this reloc. */
- if (sreloc == NULL)
- {
- if (htab->elf.dynobj == NULL)
- htab->elf.dynobj = abfd;
- sreloc = _bfd_elf_make_dynamic_reloc_section
- (sec, htab->elf.dynobj, 2, abfd, /*rela? */ true);
- if (sreloc == NULL)
- return false;
- }
- /* If this is a global symbol, we count the number of
- relocations we need for this symbol. */
- if (h != NULL)
- {
- head = &h->dyn_relocs;
- }
- else
- {
- /* Track dynamic relocs needed for local syms too.
- We really need local syms available to do this
- easily. Oh well. */
- void **vpp;
- asection *s;
- s = bfd_section_from_elf_index (abfd, isym->st_shndx);
- if (s == NULL)
- s = sec;
- vpp = &elf_section_data (s)->local_dynrel;
- head = (struct elf_dyn_relocs **)vpp;
- }
- p = *head;
- if (p == NULL || p->sec != sec)
- {
- size_t amt = sizeof *p;
- p = bfd_alloc (htab->elf.dynobj, amt);
- if (p == NULL)
- return false;
- p->next = *head;
- *head = p;
- p->sec = sec;
- p->count = 0;
- p->pc_count = 0;
- }
- p->count += 1;
- if (r_type == R_C6000_DSBT_INDEX)
- p->pc_count += 1;
- }
- break;
- case R_C6000_SBR_U15_B:
- case R_C6000_SBR_U15_H:
- case R_C6000_SBR_U15_W:
- case R_C6000_SBR_S16:
- case R_C6000_SBR_L16_B:
- case R_C6000_SBR_L16_H:
- case R_C6000_SBR_L16_W:
- case R_C6000_SBR_H16_B:
- case R_C6000_SBR_H16_H:
- case R_C6000_SBR_H16_W:
- {
- /* These relocations implicitly reference __c6xabi_DSBT_BASE.
- Add an explicit reference so that the symbol will be
- provided by a linker script. */
- struct bfd_link_hash_entry *bh = NULL;
- if (!_bfd_generic_link_add_one_symbol (info, abfd,
- "__c6xabi_DSBT_BASE",
- BSF_GLOBAL,
- bfd_und_section_ptr, 0,
- NULL, false, false, &bh))
- return false;
- ((struct elf_link_hash_entry *) bh)->non_elf = 0;
- }
- if (h != NULL && bfd_link_executable (info))
- {
- /* For B14-relative addresses, we might need a copy
- reloc. */
- h->non_got_ref = 1;
- }
- break;
- default:
- break;
- }
- }
- return true;
- }
- static bool
- elf32_tic6x_add_symbol_hook (bfd *abfd,
- struct bfd_link_info *info ATTRIBUTE_UNUSED,
- Elf_Internal_Sym *sym,
- const char **namep ATTRIBUTE_UNUSED,
- flagword *flagsp ATTRIBUTE_UNUSED,
- asection **secp,
- bfd_vma *valp)
- {
- switch (sym->st_shndx)
- {
- case SHN_TIC6X_SCOMMON:
- *secp = bfd_make_section_old_way (abfd, ".scommon");
- (*secp)->flags |= SEC_IS_COMMON | SEC_SMALL_DATA;
- *valp = sym->st_size;
- bfd_set_section_alignment (*secp, bfd_log2 (sym->st_value));
- break;
- }
- return true;
- }
- static void
- elf32_tic6x_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED, asymbol *asym)
- {
- elf_symbol_type *elfsym;
- elfsym = (elf_symbol_type *) asym;
- switch (elfsym->internal_elf_sym.st_shndx)
- {
- case SHN_TIC6X_SCOMMON:
- asym->section = &tic6x_elf_scom_section;
- asym->value = elfsym->internal_elf_sym.st_size;
- break;
- }
- }
- static int
- elf32_tic6x_link_output_symbol_hook (struct bfd_link_info *info ATTRIBUTE_UNUSED,
- const char *name ATTRIBUTE_UNUSED,
- Elf_Internal_Sym *sym,
- asection *input_sec,
- struct elf_link_hash_entry *h ATTRIBUTE_UNUSED)
- {
- /* If we see a common symbol, which implies a relocatable link, then
- if a symbol was small common in an input file, mark it as small
- common in the output file. */
- if (sym->st_shndx == SHN_COMMON && strcmp (input_sec->name, ".scommon") == 0)
- sym->st_shndx = SHN_TIC6X_SCOMMON;
- return 1;
- }
- static bool
- elf32_tic6x_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
- asection *sec,
- int *retval)
- {
- if (strcmp (bfd_section_name (sec), ".scommon") == 0)
- {
- *retval = SHN_TIC6X_SCOMMON;
- return true;
- }
- return false;
- }
- /* Allocate space in .plt, .got and associated reloc sections for
- dynamic relocs. */
- static bool
- elf32_tic6x_allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf)
- {
- struct bfd_link_info *info;
- struct elf32_tic6x_link_hash_table *htab;
- struct elf_dyn_relocs *p;
- if (h->root.type == bfd_link_hash_indirect)
- return true;
- info = (struct bfd_link_info *) inf;
- htab = elf32_tic6x_hash_table (info);
- if (htab->elf.dynamic_sections_created && h->plt.refcount > 0)
- {
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1 && !h->forced_local)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return false;
- }
- if (bfd_link_pic (info)
- || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, 0, h))
- {
- asection *s = htab->elf.splt;
- /* If this is the first .plt entry, make room for the special
- first entry. */
- if (s->size == 0)
- s->size += PLT_ENTRY_SIZE;
- h->plt.offset = s->size;
- /* If this symbol is not defined in a regular file, and we are
- not generating a shared library, then set the symbol to this
- location in the .plt. This is required to make function
- pointers compare as equal between the normal executable and
- the shared library. */
- if (! bfd_link_pic (info) && !h->def_regular)
- {
- h->root.u.def.section = s;
- h->root.u.def.value = h->plt.offset;
- }
- /* Make room for this entry. */
- s->size += PLT_ENTRY_SIZE;
- /* We also need to make an entry in the .got.plt section, which
- will be placed in the .got section by the linker script. */
- htab->elf.sgotplt->size += 4;
- /* We also need to make an entry in the .rel.plt section. */
- htab->elf.srelplt->size += sizeof (Elf32_External_Rela);
- }
- else
- {
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
- }
- else
- {
- h->plt.offset = (bfd_vma) -1;
- h->needs_plt = 0;
- }
- if (h->got.refcount > 0)
- {
- asection *s;
- /* Make sure this symbol is output as a dynamic symbol.
- Undefined weak syms won't yet be marked as dynamic. */
- if (h->dynindx == -1
- && !h->forced_local)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return false;
- }
- s = htab->elf.sgot;
- h->got.offset = s->size;
- s->size += 4;
- if (!(ELF_ST_VISIBILITY (h->other)
- && h->root.type == bfd_link_hash_undefweak))
- htab->elf.srelgot->size += sizeof (Elf32_External_Rela);
- }
- else
- h->got.offset = (bfd_vma) -1;
- if (h->dyn_relocs == NULL)
- return true;
- /* Discard relocs on undefined weak syms with non-default
- visibility. */
- if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (htab->obfd))
- {
- /* We use the pc_count field to hold the number of
- R_C6000_DSBT_INDEX relocs. */
- if (htab->params.dsbt_index != 0)
- {
- struct elf_dyn_relocs **pp;
- for (pp = &h->dyn_relocs; (p = *pp) != NULL; )
- {
- p->count -= p->pc_count;
- p->pc_count = 0;
- if (p->count == 0)
- *pp = p->next;
- else
- pp = &p->next;
- }
- }
- if (h->dyn_relocs != NULL
- && h->root.type == bfd_link_hash_undefweak)
- {
- if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
- h->dyn_relocs = NULL;
- /* Make sure undefined weak symbols are output as a dynamic
- symbol in PIEs. */
- else if (h->dynindx == -1
- && !h->forced_local)
- {
- if (! bfd_elf_link_record_dynamic_symbol (info, h))
- return false;
- }
- }
- }
- /* Finally, allocate space. */
- for (p = h->dyn_relocs; p != NULL; p = p->next)
- {
- asection *sreloc;
- sreloc = elf_section_data (p->sec)->sreloc;
- BFD_ASSERT (sreloc != NULL);
- sreloc->size += p->count * sizeof (Elf32_External_Rela);
- }
- return true;
- }
- /* Set the sizes of the dynamic sections. */
- static bool
- elf32_tic6x_size_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
- {
- struct elf32_tic6x_link_hash_table *htab;
- bfd *dynobj;
- asection *s;
- bool relocs;
- bfd *ibfd;
- htab = elf32_tic6x_hash_table (info);
- dynobj = htab->elf.dynobj;
- if (dynobj == NULL)
- abort ();
- if (htab->elf.dynamic_sections_created)
- {
- /* Set the contents of the .interp section to the interpreter. */
- if (bfd_link_executable (info) && !info->nointerp)
- {
- s = bfd_get_linker_section (dynobj, ".interp");
- if (s == NULL)
- abort ();
- s->size = sizeof ELF_DYNAMIC_INTERPRETER;
- s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
- }
- }
- /* Set up .got offsets for local syms, and space for local dynamic
- relocs. */
- for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
- {
- bfd_signed_vma *local_got;
- bfd_signed_vma *end_local_got;
- bfd_size_type locsymcount;
- Elf_Internal_Shdr *symtab_hdr;
- asection *srel;
- for (s = ibfd->sections; s != NULL; s = s->next)
- {
- struct elf_dyn_relocs *p;
- for (p = ((struct elf_dyn_relocs *)
- elf_section_data (s)->local_dynrel);
- p != NULL;
- p = p->next)
- {
- if (!bfd_is_abs_section (p->sec)
- && bfd_is_abs_section (p->sec->output_section))
- {
- /* Input section has been discarded, either because
- it is a copy of a linkonce section or due to
- linker script /DISCARD/, so we'll be discarding
- the relocs too. */
- }
- else if (p->count != 0)
- {
- srel = elf_section_data (p->sec)->sreloc;
- srel->size += p->count * sizeof (Elf32_External_Rela);
- if ((p->sec->output_section->flags & SEC_READONLY) != 0)
- info->flags |= DF_TEXTREL;
- }
- }
- }
- local_got = elf_local_got_refcounts (ibfd);
- if (!local_got)
- continue;
- symtab_hdr = &elf_symtab_hdr (ibfd);
- locsymcount = symtab_hdr->sh_info;
- end_local_got = local_got + locsymcount;
- s = htab->elf.sgot;
- srel = htab->elf.srelgot;
- for (; local_got < end_local_got; ++local_got)
- {
- if (*local_got > 0)
- {
- *local_got = s->size;
- s->size += 4;
- if (bfd_link_pic (info) || elf32_tic6x_using_dsbt (output_bfd))
- {
- srel->size += sizeof (Elf32_External_Rela);
- }
- }
- else
- *local_got = (bfd_vma) -1;
- }
- }
- /* Allocate global sym .plt and .got entries, and space for global
- sym dynamic relocs. */
- elf_link_hash_traverse (&htab->elf, elf32_tic6x_allocate_dynrelocs, info);
- /* We now have determined the sizes of the various dynamic sections.
- Allocate memory for them. */
- relocs = false;
- for (s = dynobj->sections; s != NULL; s = s->next)
- {
- bool strip_section = true;
- if ((s->flags & SEC_LINKER_CREATED) == 0)
- continue;
- if (s == htab->dsbt)
- s->size = 4 * htab->params.dsbt_size;
- else if (s == htab->elf.splt
- || s == htab->elf.sgot
- || s == htab->elf.sgotplt
- || s == htab->elf.sdynbss
- || s == htab->elf.sdynrelro)
- {
- /* Strip this section if we don't need it; see the
- comment below. */
- /* We'd like to strip these sections if they aren't needed, but if
- we've exported dynamic symbols from them we must leave them.
- It's too late to tell BFD to get rid of the symbols. */
- if (htab->elf.hplt != NULL)
- strip_section = false;
- /* Round up the size of the PLT section to a multiple of 32. */
- if (s == htab->elf.splt && s->size > 0)
- s->size = (s->size + 31) & ~(bfd_vma)31;
- }
- else if (startswith (bfd_section_name (s), ".rela"))
- {
- if (s->size != 0
- && s != htab->elf.srelplt)
- relocs = true;
- /* We use the reloc_count field as a counter if we need
- to copy relocs into the output file. */
- s->reloc_count = 0;
- }
- else
- {
- /* It's not one of our sections, so don't allocate space. */
- continue;
- }
- if (s->size == 0)
- {
- /* If we don't need this section, strip it from the
- output file. This is mostly to handle .rel.bss and
- .rel.plt. We must create both sections in
- create_dynamic_sections, because they must be created
- before the linker maps input sections to output
- sections. The linker does that before
- adjust_dynamic_symbol is called, and it is that
- function which decides whether anything needs to go
- into these sections. */
- if (strip_section)
- s->flags |= SEC_EXCLUDE;
- continue;
- }
- if ((s->flags & SEC_HAS_CONTENTS) == 0)
- continue;
- /* Allocate memory for the section contents. We use bfd_zalloc
- here in case unused entries are not reclaimed before the
- section's contents are written out. This should not happen,
- but this way if it does, we get a R_C6000_NONE reloc instead
- of garbage. */
- s->contents = bfd_zalloc (dynobj, s->size);
- if (s->contents == NULL)
- return false;
- }
- if (htab->elf.dynamic_sections_created)
- {
- /* Add some entries to the .dynamic section. We fill in the
- values later, in elf32_tic6x_finish_dynamic_sections, but we
- must add the entries now so that we get the correct size for
- the .dynamic section. The DT_DEBUG entry is filled in by the
- dynamic linker and used by the debugger. */
- #define add_dynamic_entry(TAG, VAL) \
- _bfd_elf_add_dynamic_entry (info, TAG, VAL)
- if (!_bfd_elf_add_dynamic_tags (output_bfd, info, relocs))
- return false;
- if (!add_dynamic_entry (DT_C6000_DSBT_BASE, 0)
- || !add_dynamic_entry (DT_C6000_DSBT_SIZE, htab->params.dsbt_size)
- || !add_dynamic_entry (DT_C6000_DSBT_INDEX,
- htab->params.dsbt_index))
- return false;
- }
- #undef add_dynamic_entry
- return true;
- }
- /* This function is called after all the input files have been read,
- and the input sections have been assigned to output sections. */
- static bool
- elf32_tic6x_always_size_sections (bfd *output_bfd, struct bfd_link_info *info)
- {
- if (elf32_tic6x_using_dsbt (output_bfd) && !bfd_link_relocatable (info)
- && !bfd_elf_stack_segment_size (output_bfd, info,
- "__stacksize", DEFAULT_STACK_SIZE))
- return false;
- return true;
- }
- static bool
- elf32_tic6x_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
- struct bfd_link_info *info)
- {
- struct elf32_tic6x_link_hash_table *htab;
- bfd *dynobj;
- asection *sdyn;
- htab = elf32_tic6x_hash_table (info);
- dynobj = htab->elf.dynobj;
- sdyn = bfd_get_linker_section (dynobj, ".dynamic");
- if (elf_hash_table (info)->dynamic_sections_created)
- {
- Elf32_External_Dyn * dyncon;
- Elf32_External_Dyn * dynconend;
- BFD_ASSERT (sdyn != NULL);
- dyncon = (Elf32_External_Dyn *) sdyn->contents;
- dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
- for (; dyncon < dynconend; dyncon++)
- {
- Elf_Internal_Dyn dyn;
- asection *s;
- bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
- switch (dyn.d_tag)
- {
- default:
- break;
- case DT_C6000_DSBT_BASE:
- s = htab->dsbt;
- dyn.d_un.d_ptr = (s->output_section->vma + s->output_offset);
- break;
- case DT_PLTGOT:
- s = htab->elf.sgotplt;
- dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
- break;
- case DT_JMPREL:
- s = htab->elf.srelplt;
- dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
- break;
- case DT_PLTRELSZ:
- s = htab->elf.srelplt;
- dyn.d_un.d_val = s->size;
- break;
- }
- bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
- }
- /* Fill in the first entry in the procedure linkage table. */
- if (htab->elf.splt && htab->elf.splt->size > 0)
- {
- bfd_vma got_offs = (htab->elf.sgotplt->output_section->vma
- + htab->elf.sgotplt->output_offset
- - htab->dsbt->output_section->vma
- - htab->dsbt->output_offset) / 4;
- /* ldw .D2T2 *+b14[$GOT(0)],b2 */
- bfd_put_32 (output_bfd, got_offs << 8 | 0x0100006e,
- htab->elf.splt->contents);
- /* ldw .D2T2 *+b14[$GOT(4)],b1 */
- bfd_put_32 (output_bfd, (got_offs + 1) << 8 | 0x0080006e,
- htab->elf.splt->contents + 4);
- /* nop 3 */
- bfd_put_32 (output_bfd, 0x00004000,
- htab->elf.splt->contents + 8);
- /* b .s2 b2 */
- bfd_put_32 (output_bfd, 0x00080362,
- htab->elf.splt->contents + 12);
- /* nop 5 */
- bfd_put_32 (output_bfd, 0x00008000,
- htab->elf.splt->contents + 16);
- elf_section_data (htab->elf.splt->output_section)
- ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
- }
- }
- return true;
- }
- /* Return address for Ith PLT stub in section PLT, for relocation REL
- or (bfd_vma) -1 if it should not be included. */
- static bfd_vma
- elf32_tic6x_plt_sym_val (bfd_vma i, const asection *plt,
- const arelent *rel ATTRIBUTE_UNUSED)
- {
- return plt->vma + (i + 1) * PLT_ENTRY_SIZE;
- }
- static int
- elf32_tic6x_obj_attrs_arg_type (int tag)
- {
- if (tag == Tag_ABI_compatibility)
- return ATTR_TYPE_FLAG_INT_VAL | ATTR_TYPE_FLAG_STR_VAL;
- else if (tag & 1)
- return ATTR_TYPE_FLAG_STR_VAL;
- else
- return ATTR_TYPE_FLAG_INT_VAL;
- }
- static int
- elf32_tic6x_obj_attrs_order (int num)
- {
- if (num == LEAST_KNOWN_OBJ_ATTRIBUTE)
- return Tag_ABI_conformance;
- if ((num - 1) < Tag_ABI_conformance)
- return num - 1;
- return num;
- }
- static bool
- elf32_tic6x_obj_attrs_handle_unknown (bfd *abfd, int tag)
- {
- if ((tag & 127) < 64)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: error: unknown mandatory EABI object attribute %d"),
- abfd, tag);
- bfd_set_error (bfd_error_bad_value);
- return false;
- }
- else
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("%pB: warning: unknown EABI object attribute %d"),
- abfd, tag);
- return true;
- }
- }
- /* Merge the Tag_ISA attribute values ARCH1 and ARCH2
- and return the merged value. At present, all merges succeed, so no
- return value for errors is defined. */
- int
- elf32_tic6x_merge_arch_attributes (int arch1, int arch2)
- {
- int min_arch, max_arch;
- min_arch = (arch1 < arch2 ? arch1 : arch2);
- max_arch = (arch1 > arch2 ? arch1 : arch2);
- /* In most cases, the numerically greatest value is the correct
- merged value, but merging C64 and C67 results in C674X. */
- if ((min_arch == C6XABI_Tag_ISA_C67X
- || min_arch == C6XABI_Tag_ISA_C67XP)
- && (max_arch == C6XABI_Tag_ISA_C64X
- || max_arch == C6XABI_Tag_ISA_C64XP))
- return C6XABI_Tag_ISA_C674X;
- return max_arch;
- }
- /* Convert a Tag_ABI_array_object_alignment or
- Tag_ABI_array_object_align_expected tag value TAG to a
- corresponding alignment value; return the alignment, or -1 for an
- unknown tag value. */
- static int
- elf32_tic6x_tag_to_array_alignment (int tag)
- {
- switch (tag)
- {
- case 0:
- return 8;
- case 1:
- return 4;
- case 2:
- return 16;
- default:
- return -1;
- }
- }
- /* Convert a Tag_ABI_array_object_alignment or
- Tag_ABI_array_object_align_expected alignment ALIGN to a
- corresponding tag value; return the tag value. */
- static int
- elf32_tic6x_array_alignment_to_tag (int align)
- {
- switch (align)
- {
- case 8:
- return 0;
- case 4:
- return 1;
- case 16:
- return 2;
- default:
- abort ();
- }
- }
- /* Merge attributes from IBFD and OBFD, returning TRUE if the merge
- succeeded, FALSE otherwise. */
- static bool
- elf32_tic6x_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
- {
- bfd *obfd = info->output_bfd;
- bool result = true;
- obj_attribute *in_attr;
- obj_attribute *out_attr;
- int i;
- int array_align_in, array_align_out, array_expect_in, array_expect_out;
- /* FIXME: What should be checked when linking shared libraries? */
- if ((ibfd->flags & DYNAMIC) != 0)
- return true;
- if (!elf_known_obj_attributes_proc (obfd)[0].i)
- {
- /* This is the first object. Copy the attributes. */
- _bfd_elf_copy_obj_attributes (ibfd, obfd);
- out_attr = elf_known_obj_attributes_proc (obfd);
- /* Use the Tag_null value to indicate the attributes have been
- initialized. */
- out_attr[0].i = 1;
- return true;
- }
- in_attr = elf_known_obj_attributes_proc (ibfd);
- out_attr = elf_known_obj_attributes_proc (obfd);
- /* No specification yet for handling of unknown attributes, so just
- ignore them and handle known ones. */
- if (out_attr[Tag_ABI_stack_align_preserved].i
- < in_attr[Tag_ABI_stack_align_needed].i)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB requires more stack alignment than %pB preserves"),
- ibfd, obfd);
- result = false;
- }
- if (in_attr[Tag_ABI_stack_align_preserved].i
- < out_attr[Tag_ABI_stack_align_needed].i)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB requires more stack alignment than %pB preserves"),
- obfd, ibfd);
- result = false;
- }
- array_align_in = elf32_tic6x_tag_to_array_alignment
- (in_attr[Tag_ABI_array_object_alignment].i);
- if (array_align_in == -1)
- {
- _bfd_error_handler
- (_("error: unknown Tag_ABI_array_object_alignment value in %pB"),
- ibfd);
- result = false;
- }
- array_align_out = elf32_tic6x_tag_to_array_alignment
- (out_attr[Tag_ABI_array_object_alignment].i);
- if (array_align_out == -1)
- {
- _bfd_error_handler
- (_("error: unknown Tag_ABI_array_object_alignment value in %pB"),
- obfd);
- result = false;
- }
- array_expect_in = elf32_tic6x_tag_to_array_alignment
- (in_attr[Tag_ABI_array_object_align_expected].i);
- if (array_expect_in == -1)
- {
- _bfd_error_handler
- (_("error: unknown Tag_ABI_array_object_align_expected value in %pB"),
- ibfd);
- result = false;
- }
- array_expect_out = elf32_tic6x_tag_to_array_alignment
- (out_attr[Tag_ABI_array_object_align_expected].i);
- if (array_expect_out == -1)
- {
- _bfd_error_handler
- (_("error: unknown Tag_ABI_array_object_align_expected value in %pB"),
- obfd);
- result = false;
- }
- if (array_align_out < array_expect_in)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB requires more array alignment than %pB preserves"),
- ibfd, obfd);
- result = false;
- }
- if (array_align_in < array_expect_out)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("error: %pB requires more array alignment than %pB preserves"),
- obfd, ibfd);
- result = false;
- }
- for (i = LEAST_KNOWN_OBJ_ATTRIBUTE; i < NUM_KNOWN_OBJ_ATTRIBUTES; i++)
- {
- switch (i)
- {
- case Tag_ISA:
- out_attr[i].i = elf32_tic6x_merge_arch_attributes (in_attr[i].i,
- out_attr[i].i);
- break;
- case Tag_ABI_wchar_t:
- if (out_attr[i].i == 0)
- out_attr[i].i = in_attr[i].i;
- if (out_attr[i].i != 0
- && in_attr[i].i != 0
- && out_attr[i].i != in_attr[i].i)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("warning: %pB and %pB differ in wchar_t size"), obfd, ibfd);
- }
- break;
- case Tag_ABI_stack_align_needed:
- if (out_attr[i].i < in_attr[i].i)
- out_attr[i].i = in_attr[i].i;
- break;
- case Tag_ABI_stack_align_preserved:
- if (out_attr[i].i > in_attr[i].i)
- out_attr[i].i = in_attr[i].i;
- break;
- case Tag_ABI_DSBT:
- if (out_attr[i].i != in_attr[i].i)
- {
- _bfd_error_handler
- /* xgettext:c-format */
- (_("warning: %pB and %pB differ in whether code is "
- "compiled for DSBT"),
- obfd, ibfd);
- }
- break;
- case Tag_ABI_PIC:
- case Tag_ABI_PID:
- /* Don't transfer these tags from dynamic objects. */
- if ((ibfd->flags & DYNAMIC) != 0)
- continue;
- if (out_attr[i].i > in_attr[i].i)
- out_attr[i].i = in_attr[i].i;
- break;
- case Tag_ABI_array_object_alignment:
- if (array_align_out != -1
- && array_align_in != -1
- && array_align_out > array_align_in)
- out_attr[i].i
- = elf32_tic6x_array_alignment_to_tag (array_align_in);
- break;
- case Tag_ABI_array_object_align_expected:
- if (array_expect_out != -1
- && array_expect_in != -1
- && array_expect_out < array_expect_in)
- out_attr[i].i
- = elf32_tic6x_array_alignment_to_tag (array_expect_in);
- break;
- case Tag_ABI_conformance:
- /* Merging for this attribute is not specified. As on ARM,
- treat a missing attribute as no claim to conform and only
- merge identical values. */
- if (out_attr[i].s == NULL
- || in_attr[i].s == NULL
- || strcmp (out_attr[i].s,
- in_attr[i].s) != 0)
- out_attr[i].s = NULL;
- break;
- case Tag_ABI_compatibility:
- /* Merged in _bfd_elf_merge_object_attributes. */
- break;
- default:
- result
- = result && _bfd_elf_merge_unknown_attribute_low (ibfd, obfd, i);
- break;
- }
- if (in_attr[i].type && !out_attr[i].type)
- out_attr[i].type = in_attr[i].type;
- }
- /* Merge Tag_ABI_compatibility attributes and any common GNU ones. */
- if (!_bfd_elf_merge_object_attributes (ibfd, info))
- return false;
- result &= _bfd_elf_merge_unknown_attribute_list (ibfd, obfd);
- return result;
- }
- static bool
- elf32_tic6x_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info)
- {
- if (!_bfd_generic_verify_endian_match (ibfd, info))
- return false;
- if (! is_tic6x_elf (ibfd) || ! is_tic6x_elf (info->output_bfd))
- return true;
- if (!elf32_tic6x_merge_attributes (ibfd, info))
- return false;
- return true;
- }
- /* Add a new unwind edit to the list described by HEAD, TAIL. If TINDEX is zero,
- adds the edit to the start of the list. (The list must be built in order of
- ascending TINDEX: the function's callers are primarily responsible for
- maintaining that condition). */
- static void
- elf32_tic6x_add_unwind_table_edit (tic6x_unwind_table_edit **head,
- tic6x_unwind_table_edit **tail,
- tic6x_unwind_edit_type type,
- asection *linked_section,
- unsigned int tindex)
- {
- tic6x_unwind_table_edit *new_edit = (tic6x_unwind_table_edit *)
- xmalloc (sizeof (tic6x_unwind_table_edit));
- new_edit->type = type;
- new_edit->linked_section = linked_section;
- new_edit->index = tindex;
- if (tindex > 0)
- {
- new_edit->next = NULL;
- if (*tail)
- (*tail)->next = new_edit;
- (*tail) = new_edit;
- if (!*head)
- (*head) = new_edit;
- }
- else
- {
- new_edit->next = *head;
- if (!*tail)
- *tail = new_edit;
- *head = new_edit;
- }
- }
- static _tic6x_elf_section_data *
- get_tic6x_elf_section_data (asection * sec)
- {
- if (sec && sec->owner && is_tic6x_elf (sec->owner))
- return elf32_tic6x_section_data (sec);
- else
- return NULL;
- }
- /* Increase the size of EXIDX_SEC by ADJUST bytes. ADJUST must be negative. */
- static void
- elf32_tic6x_adjust_exidx_size (asection *exidx_sec, int adjust)
- {
- asection *out_sec;
- if (!exidx_sec->rawsize)
- exidx_sec->rawsize = exidx_sec->size;
- bfd_set_section_size (exidx_sec, exidx_sec->size + adjust);
- out_sec = exidx_sec->output_section;
- /* Adjust size of output section. */
- bfd_set_section_size (out_sec, out_sec->size +adjust);
- }
- /* Insert an EXIDX_CANTUNWIND marker at the end of a section. */
- static void
- elf32_tic6x_insert_cantunwind_after (asection *text_sec, asection *exidx_sec)
- {
- struct _tic6x_elf_section_data *exidx_data;
- exidx_data = get_tic6x_elf_section_data (exidx_sec);
- elf32_tic6x_add_unwind_table_edit (
- &exidx_data->u.exidx.unwind_edit_list,
- &exidx_data->u.exidx.unwind_edit_tail,
- INSERT_EXIDX_CANTUNWIND_AT_END, text_sec, UINT_MAX);
- elf32_tic6x_adjust_exidx_size (exidx_sec, 8);
- }
- /* Scan .cx6abi.exidx tables, and create a list describing edits which
- should be made to those tables, such that:
- 1. Regions without unwind data are marked with EXIDX_CANTUNWIND entries.
- 2. Duplicate entries are merged together (EXIDX_CANTUNWIND, or unwind
- codes which have been inlined into the index).
- If MERGE_EXIDX_ENTRIES is false, duplicate entries are not merged.
- The edits are applied when the tables are written
- (in elf32_tic6x_write_section).
- */
- bool
- elf32_tic6x_fix_exidx_coverage (asection **text_section_order,
- unsigned int num_text_sections,
- struct bfd_link_info *info,
- bool merge_exidx_entries)
- {
- bfd *inp;
- unsigned int last_second_word = 0, i;
- asection *last_exidx_sec = NULL;
- asection *last_text_sec = NULL;
- int last_unwind_type = -1;
- /* Walk over all EXIDX sections, and create backlinks from the corrsponding
- text sections. */
- for (inp = info->input_bfds; inp != NULL; inp = inp->link.next)
- {
- asection *sec;
- for (sec = inp->sections; sec != NULL; sec = sec->next)
- {
- struct bfd_elf_section_data *elf_sec = elf_section_data (sec);
- Elf_Internal_Shdr *hdr = &elf_sec->this_hdr;
- if (!hdr || hdr->sh_type != SHT_C6000_UNWIND)
- continue;
- if (elf_sec->linked_to)
- {
- Elf_Internal_Shdr *linked_hdr
- = &elf_section_data (elf_sec->linked_to)->this_hdr;
- struct _tic6x_elf_section_data *linked_sec_tic6x_data
- = get_tic6x_elf_section_data (linked_hdr->bfd_section);
- if (linked_sec_tic6x_data == NULL)
- continue;
- /* Link this .c6xabi.exidx section back from the
- text section it describes. */
- linked_sec_tic6x_data->u.text.tic6x_exidx_sec = sec;
- }
- }
- }
- /* Walk all text sections in order of increasing VMA. Eilminate duplicate
- index table entries (EXIDX_CANTUNWIND and inlined unwind opcodes),
- and add EXIDX_CANTUNWIND entries for sections with no unwind table data. */
- for (i = 0; i < num_text_sections; i++)
- {
- asection *sec = text_section_order[i];
- asection *exidx_sec;
- struct _tic6x_elf_section_data *tic6x_data
- = get_tic6x_elf_section_data (sec);
- struct _tic6x_elf_section_data *exidx_data;
- bfd_byte *contents = NULL;
- int deleted_exidx_bytes = 0;
- bfd_vma j;
- tic6x_unwind_table_edit *unwind_edit_head = NULL;
- tic6x_unwind_table_edit *unwind_edit_tail = NULL;
- Elf_Internal_Shdr *hdr;
- bfd *ibfd;
- if (tic6x_data == NULL)
- continue;
- exidx_sec = tic6x_data->u.text.tic6x_exidx_sec;
- if (exidx_sec == NULL)
- {
- /* Section has no unwind data. */
- if (last_unwind_type == 0 || !last_exidx_sec)
- continue;
- /* Ignore zero sized sections. */
- if (sec->size == 0)
- continue;
- elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
- last_unwind_type = 0;
- continue;
- }
- /* Skip /DISCARD/ sections. */
- if (bfd_is_abs_section (exidx_sec->output_section))
- continue;
- hdr = &elf_section_data (exidx_sec)->this_hdr;
- if (hdr->sh_type != SHT_C6000_UNWIND)
- continue;
- exidx_data = get_tic6x_elf_section_data (exidx_sec);
- if (exidx_data == NULL)
- continue;
- ibfd = exidx_sec->owner;
- if (hdr->contents != NULL)
- contents = hdr->contents;
- else if (! bfd_malloc_and_get_section (ibfd, exidx_sec, &contents))
- /* An error? */
- continue;
- for (j = 0; j < hdr->sh_size; j += 8)
- {
- unsigned int second_word = bfd_get_32 (ibfd, contents + j + 4);
- int unwind_type;
- int elide = 0;
- /* An EXIDX_CANTUNWIND entry. */
- if (second_word == 1)
- {
- if (last_unwind_type == 0)
- elide = 1;
- unwind_type = 0;
- }
- /* Inlined unwinding data. Merge if equal to previous. */
- else if ((second_word & 0x80000000) != 0)
- {
- if (merge_exidx_entries
- && last_second_word == second_word
- && last_unwind_type == 1)
- elide = 1;
- unwind_type = 1;
- last_second_word = second_word;
- }
- /* Normal table entry. In theory we could merge these too,
- but duplicate entries are likely to be much less common. */
- else
- unwind_type = 2;
- if (elide)
- {
- elf32_tic6x_add_unwind_table_edit (&unwind_edit_head,
- &unwind_edit_tail, DELETE_EXIDX_ENTRY, NULL, j / 8);
- deleted_exidx_bytes += 8;
- }
- last_unwind_type = unwind_type;
- }
- /* Free contents if we allocated it ourselves. */
- if (contents != hdr->contents)
- free (contents);
- /* Record edits to be applied later (in elf32_tic6x_write_section). */
- exidx_data->u.exidx.unwind_edit_list = unwind_edit_head;
- exidx_data->u.exidx.unwind_edit_tail = unwind_edit_tail;
- if (deleted_exidx_bytes > 0)
- elf32_tic6x_adjust_exidx_size (exidx_sec, -deleted_exidx_bytes);
- last_exidx_sec = exidx_sec;
- last_text_sec = sec;
- }
- /* Add terminating CANTUNWIND entry. */
- if (last_exidx_sec && last_unwind_type != 0)
- elf32_tic6x_insert_cantunwind_after (last_text_sec, last_exidx_sec);
- return true;
- }
- /* Add ADDEND to lower 31 bits of VAL, leaving other bits unmodified. */
- static unsigned long
- elf32_tic6x_add_low31 (unsigned long val, bfd_vma addend)
- {
- return (val & ~0x7ffffffful) | ((val + addend) & 0x7ffffffful);
- }
- /* Copy an .c6xabi.exidx table entry, adding OFFSET to (applied) PREL31
- relocations. OFFSET is in bytes, and will be scaled before encoding. */
- static void
- elf32_tic6x_copy_exidx_entry (bfd *output_bfd, bfd_byte *to, bfd_byte *from,
- bfd_vma offset)
- {
- unsigned long first_word = bfd_get_32 (output_bfd, from);
- unsigned long second_word = bfd_get_32 (output_bfd, from + 4);
- offset >>= 1;
- /* High bit of first word is supposed to be zero. */
- if ((first_word & 0x80000000ul) == 0)
- first_word = elf32_tic6x_add_low31 (first_word, offset);
- /* If the high bit of the first word is clear, and the bit pattern is not 0x1
- (EXIDX_CANTUNWIND), this is an offset to an .c6xabi.extab entry. */
- if ((second_word != 0x1) && ((second_word & 0x80000000ul) == 0))
- second_word = elf32_tic6x_add_low31 (second_word, offset);
- bfd_put_32 (output_bfd, first_word, to);
- bfd_put_32 (output_bfd, second_word, to + 4);
- }
- /* Do the actual mangling of exception index tables. */
- static bool
- elf32_tic6x_write_section (bfd *output_bfd,
- struct bfd_link_info *link_info,
- asection *sec,
- bfd_byte *contents)
- {
- _tic6x_elf_section_data *tic6x_data;
- struct elf32_tic6x_link_hash_table *globals
- = elf32_tic6x_hash_table (link_info);
- bfd_vma offset = sec->output_section->vma + sec->output_offset;
- if (globals == NULL)
- return false;
- /* If this section has not been allocated an _tic6x_elf_section_data
- structure then we cannot record anything. */
- tic6x_data = get_tic6x_elf_section_data (sec);
- if (tic6x_data == NULL)
- return false;
- if (tic6x_data->elf.this_hdr.sh_type != SHT_C6000_UNWIND)
- return false;
- tic6x_unwind_table_edit *edit_node
- = tic6x_data->u.exidx.unwind_edit_list;
- /* Now, sec->size is the size of the section we will write. The original
- size (before we merged duplicate entries and inserted EXIDX_CANTUNWIND
- markers) was sec->rawsize. (This isn't the case if we perform no
- edits, then rawsize will be zero and we should use size). */
- bfd_byte *edited_contents = (bfd_byte *) bfd_malloc (sec->size);
- unsigned int input_size = sec->rawsize ? sec->rawsize : sec->size;
- unsigned int in_index, out_index;
- bfd_vma add_to_offsets = 0;
- for (in_index = 0, out_index = 0; in_index * 8 < input_size || edit_node;)
- {
- if (edit_node)
- {
- unsigned int edit_index = edit_node->index;
- if (in_index < edit_index && in_index * 8 < input_size)
- {
- elf32_tic6x_copy_exidx_entry (output_bfd,
- edited_contents + out_index * 8,
- contents + in_index * 8, add_to_offsets);
- out_index++;
- in_index++;
- }
- else if (in_index == edit_index
- || (in_index * 8 >= input_size
- && edit_index == UINT_MAX))
- {
- switch (edit_node->type)
- {
- case DELETE_EXIDX_ENTRY:
- in_index++;
- add_to_offsets += 8;
- break;
- case INSERT_EXIDX_CANTUNWIND_AT_END:
- {
- asection *text_sec = edit_node->linked_section;
- bfd_vma text_offset = text_sec->output_section->vma
- + text_sec->output_offset
- + text_sec->size;
- bfd_vma exidx_offset = offset + out_index * 8;
- unsigned long prel31_offset;
- /* Note: this is meant to be equivalent to an
- R_C6000_PREL31 relocation. These synthetic
- EXIDX_CANTUNWIND markers are not relocated by the
- usual BFD method. */
- prel31_offset = ((text_offset - exidx_offset) >> 1)
- & 0x7ffffffful;
- /* First address we can't unwind. */
- bfd_put_32 (output_bfd, prel31_offset,
- &edited_contents[out_index * 8]);
- /* Code for EXIDX_CANTUNWIND. */
- bfd_put_32 (output_bfd, 0x1,
- &edited_contents[out_index * 8 + 4]);
- out_index++;
- add_to_offsets -= 8;
- }
- break;
- }
- edit_node = edit_node->next;
- }
- }
- else
- {
- /* No more edits, copy remaining entries verbatim. */
- elf32_tic6x_copy_exidx_entry (output_bfd,
- edited_contents + out_index * 8,
- contents + in_index * 8, add_to_offsets);
- out_index++;
- in_index++;
- }
- }
- if (!(sec->flags & SEC_EXCLUDE) && !(sec->flags & SEC_NEVER_LOAD))
- bfd_set_section_contents (output_bfd, sec->output_section,
- edited_contents,
- (file_ptr) sec->output_offset, sec->size);
- return true;
- }
- #define elf32_bed elf32_tic6x_bed
- #define TARGET_LITTLE_SYM tic6x_elf32_le_vec
- #define TARGET_LITTLE_NAME "elf32-tic6x-le"
- #define TARGET_BIG_SYM tic6x_elf32_be_vec
- #define TARGET_BIG_NAME "elf32-tic6x-be"
- #define ELF_ARCH bfd_arch_tic6x
- #define ELF_TARGET_ID TIC6X_ELF_DATA
- #define ELF_MACHINE_CODE EM_TI_C6000
- #define ELF_MAXPAGESIZE 0x1000
- #define bfd_elf32_bfd_reloc_type_lookup elf32_tic6x_reloc_type_lookup
- #define bfd_elf32_bfd_reloc_name_lookup elf32_tic6x_reloc_name_lookup
- #define bfd_elf32_bfd_merge_private_bfd_data elf32_tic6x_merge_private_bfd_data
- #define bfd_elf32_mkobject elf32_tic6x_mkobject
- #define bfd_elf32_bfd_link_hash_table_create elf32_tic6x_link_hash_table_create
- #define bfd_elf32_new_section_hook elf32_tic6x_new_section_hook
- #define elf_backend_stack_align 8
- #define elf_backend_can_gc_sections 1
- #define elf_backend_default_use_rela_p 1
- #define elf_backend_may_use_rel_p 1
- #define elf_backend_may_use_rela_p 1
- #define elf_backend_obj_attrs_arg_type elf32_tic6x_obj_attrs_arg_type
- #define elf_backend_obj_attrs_handle_unknown elf32_tic6x_obj_attrs_handle_unknown
- #define elf_backend_obj_attrs_order elf32_tic6x_obj_attrs_order
- #define elf_backend_obj_attrs_section ".c6xabi.attributes"
- #define elf_backend_obj_attrs_section_type SHT_C6000_ATTRIBUTES
- #define elf_backend_obj_attrs_vendor "c6xabi"
- #define elf_backend_can_refcount 1
- #define elf_backend_want_got_plt 1
- #define elf_backend_want_dynbss 1
- #define elf_backend_want_dynrelro 1
- #define elf_backend_plt_readonly 1
- #define elf_backend_rela_normal 1
- #define elf_backend_got_header_size 8
- #define elf_backend_fake_sections elf32_tic6x_fake_sections
- #define elf_backend_gc_mark_extra_sections elf32_tic6x_gc_mark_extra_sections
- #define elf_backend_create_dynamic_sections \
- elf32_tic6x_create_dynamic_sections
- #define elf_backend_adjust_dynamic_symbol \
- elf32_tic6x_adjust_dynamic_symbol
- #define elf_backend_check_relocs elf32_tic6x_check_relocs
- #define elf_backend_add_symbol_hook elf32_tic6x_add_symbol_hook
- #define elf_backend_symbol_processing elf32_tic6x_symbol_processing
- #define elf_backend_link_output_symbol_hook \
- elf32_tic6x_link_output_symbol_hook
- #define elf_backend_section_from_bfd_section \
- elf32_tic6x_section_from_bfd_section
- #define elf_backend_relocate_section elf32_tic6x_relocate_section
- #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible
- #define elf_backend_finish_dynamic_symbol \
- elf32_tic6x_finish_dynamic_symbol
- #define elf_backend_always_size_sections \
- elf32_tic6x_always_size_sections
- #define elf_backend_size_dynamic_sections \
- elf32_tic6x_size_dynamic_sections
- #define elf_backend_finish_dynamic_sections \
- elf32_tic6x_finish_dynamic_sections
- #define bfd_elf32_bfd_final_link \
- elf32_tic6x_final_link
- #define elf_backend_write_section elf32_tic6x_write_section
- #define elf_info_to_howto elf32_tic6x_info_to_howto
- #define elf_info_to_howto_rel elf32_tic6x_info_to_howto_rel
- #undef elf_backend_omit_section_dynsym
- #define elf_backend_omit_section_dynsym elf32_tic6x_link_omit_section_dynsym
- #define elf_backend_plt_sym_val elf32_tic6x_plt_sym_val
- #include "elf32-target.h"
- #undef elf32_bed
- #define elf32_bed elf32_tic6x_linux_bed
- #undef TARGET_LITTLE_SYM
- #define TARGET_LITTLE_SYM tic6x_elf32_linux_le_vec
- #undef TARGET_LITTLE_NAME
- #define TARGET_LITTLE_NAME "elf32-tic6x-linux-le"
- #undef TARGET_BIG_SYM
- #define TARGET_BIG_SYM tic6x_elf32_linux_be_vec
- #undef TARGET_BIG_NAME
- #define TARGET_BIG_NAME "elf32-tic6x-linux-be"
- #undef ELF_OSABI
- #define ELF_OSABI ELFOSABI_C6000_LINUX
- #include "elf32-target.h"
- #undef elf32_bed
- #define elf32_bed elf32_tic6x_elf_bed
- #undef TARGET_LITTLE_SYM
- #define TARGET_LITTLE_SYM tic6x_elf32_c6000_le_vec
- #undef TARGET_LITTLE_NAME
- #define TARGET_LITTLE_NAME "elf32-tic6x-elf-le"
- #undef TARGET_BIG_SYM
- #define TARGET_BIG_SYM tic6x_elf32_c6000_be_vec
- #undef TARGET_BIG_NAME
- #define TARGET_BIG_NAME "elf32-tic6x-elf-be"
- #undef ELF_OSABI
- #define ELF_OSABI ELFOSABI_C6000_ELFABI
- #include "elf32-target.h"
|