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author | Julian Brown <julian@codesourcery.com> | 2007-01-29 16:28:40 +0000 |
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committer | Julian Brown <julian@codesourcery.com> | 2007-01-29 16:28:40 +0000 |
commit | c6dd86c69582aa64a638c2ddef7cd6a6ae769a71 (patch) | |
tree | 98f878eeede475506c4cbaa03c4ed2223d1d5296 /ld/emultempl | |
parent | b785d0e12194800df53b5efca6b6dc47c73e975e (diff) | |
download | gdb-c6dd86c69582aa64a638c2ddef7cd6a6ae769a71.zip gdb-c6dd86c69582aa64a638c2ddef7cd6a6ae769a71.tar.gz gdb-c6dd86c69582aa64a638c2ddef7cd6a6ae769a71.tar.bz2 |
* NEWS: Mention --vfp11-denorm-fix option.
* ld.texinfo: Document above.
* emulparams/armelf_linux.sh (OTHER_TEXT_SECTIONS): Add
.vfp11_veneer section.
* emulparams/armelf.sh (OTHER_TEXT_SECTIONS): Likewise.
* emultempl/armelf.em (vfp11_denorm_fix): New static variable.
(arm_elf_before_allocation): Call bfd_elf32_arm_set_vfp11_fix,
bfd_elf32_arm_init_maps and bfd_elf32_arm_vfp11_erratum_scan.
(arm_elf_after_allocation): New function. Call
bfd_elf32_arm_vfp11_fix_veneer_locations for all input statements.
(arm_elf_create_output_section_statements): Pass vfp11 fix command
line option to BFD.
(OPTION_VFP11_DENORM_FIX): New option.
(PARSE_AND_LIST_LONGOPTS): Handle new option.
(PARSE_AND_LIST_OPTIONS): Likewise.
(PARSE_AND_LIST_ARGS_CASES): Likewise.
(LDEMUL_AFTER_ALLOCATION): Define.
Diffstat (limited to 'ld/emultempl')
-rw-r--r-- | ld/emultempl/armelf.em | 44 |
1 files changed, 42 insertions, 2 deletions
diff --git a/ld/emultempl/armelf.em b/ld/emultempl/armelf.em index d52d387..4522a8b 100644 --- a/ld/emultempl/armelf.em +++ b/ld/emultempl/armelf.em @@ -35,6 +35,7 @@ static int target1_is_rel = 0${TARGET1_IS_REL}; static char *target2_type = "${TARGET2_TYPE}"; static int fix_v4bx = 0; static int use_blx = 0; +static bfd_arm_vfp11_fix vfp11_denorm_fix = BFD_ARM_VFP11_FIX_DEFAULT; static void gld${EMULATION_NAME}_before_parse (void) @@ -124,6 +125,10 @@ arm_elf_before_allocation (void) bfd_elf32_arm_set_byteswap_code (&link_info, byteswap_code); + /* Choose type of VFP11 erratum fix, or warn if specified fix is unnecessary + due to architecture version. */ + bfd_elf32_arm_set_vfp11_fix (output_bfd, &link_info); + /* We should be able to set the size of the interworking stub section. We can't do it until later if we have dynamic sections, though. */ if (! elf_hash_table (&link_info)->dynamic_sections_created) @@ -131,8 +136,12 @@ arm_elf_before_allocation (void) /* Here we rummage through the found bfds to collect glue information. */ LANG_FOR_EACH_INPUT_STATEMENT (is) { + /* Initialise mapping tables for code/data. */ + bfd_elf32_arm_init_maps (is->the_bfd); + if (!bfd_elf32_arm_process_before_allocation (is->the_bfd, - &link_info)) + &link_info) + || !bfd_elf32_arm_vfp11_erratum_scan (is->the_bfd, &link_info)) /* xgettext:c-format */ einfo (_("Errors encountered processing file %s"), is->filename); } @@ -146,6 +155,22 @@ arm_elf_before_allocation (void) } static void +arm_elf_after_allocation (void) +{ + /* Call the standard elf routine. */ + after_allocation_default (); + + { + LANG_FOR_EACH_INPUT_STATEMENT (is) + { + /* Figure out where VFP11 erratum veneers (and the labels returning + from same) have been placed. */ + bfd_elf32_arm_vfp11_fix_veneer_locations (is->the_bfd, &link_info); + } + } +} + +static void arm_elf_finish (void) { struct bfd_link_hash_entry * h; @@ -214,7 +239,7 @@ static void arm_elf_create_output_section_statements (void) { bfd_elf32_arm_set_target_relocs (&link_info, target1_is_rel, target2_type, - fix_v4bx, use_blx); + fix_v4bx, use_blx, vfp11_denorm_fix); } EOF @@ -230,6 +255,7 @@ PARSE_AND_LIST_PROLOGUE=' #define OPTION_TARGET2 305 #define OPTION_FIX_V4BX 306 #define OPTION_USE_BLX 307 +#define OPTION_VFP11_DENORM_FIX 308 ' PARSE_AND_LIST_SHORTOPTS=p @@ -243,6 +269,7 @@ PARSE_AND_LIST_LONGOPTS=' { "target2", required_argument, NULL, OPTION_TARGET2}, { "fix-v4bx", no_argument, NULL, OPTION_FIX_V4BX}, { "use-blx", no_argument, NULL, OPTION_USE_BLX}, + { "vfp11-denorm-fix", required_argument, NULL, OPTION_VFP11_DENORM_FIX}, ' PARSE_AND_LIST_OPTIONS=' @@ -253,6 +280,7 @@ PARSE_AND_LIST_OPTIONS=' fprintf (file, _(" --target2=<type> Specify definition of R_ARM_TARGET2\n")); fprintf (file, _(" --fix-v4bx Rewrite BX rn as MOV pc, rn for ARMv4\n")); fprintf (file, _(" --use-blx Enable use of BLX instructions\n")); + fprintf (file, _(" --vfp11-denorm-fix Specify how to fix VFP11 denorm erratum\n")); ' PARSE_AND_LIST_ARGS_CASES=' @@ -287,12 +315,24 @@ PARSE_AND_LIST_ARGS_CASES=' case OPTION_USE_BLX: use_blx = 1; break; + + case OPTION_VFP11_DENORM_FIX: + if (strcmp (optarg, "none") == 0) + vfp11_denorm_fix = BFD_ARM_VFP11_FIX_NONE; + else if (strcmp (optarg, "scalar") == 0) + vfp11_denorm_fix = BFD_ARM_VFP11_FIX_SCALAR; + else if (strcmp (optarg, "vector") == 0) + vfp11_denorm_fix = BFD_ARM_VFP11_FIX_VECTOR; + else + einfo (_("Unrecognized VFP11 fix type '\''%s'\''.\n"), optarg); + break; ' # We have our own after_open and before_allocation functions, but they call # the standard routines, so give them a different name. LDEMUL_AFTER_OPEN=arm_elf_after_open LDEMUL_BEFORE_ALLOCATION=arm_elf_before_allocation +LDEMUL_AFTER_ALLOCATION=arm_elf_after_allocation LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=arm_elf_create_output_section_statements # Replace the elf before_parse function with our own. |