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author | Maciej W. Rozycki <macro@linux-mips.org> | 2013-06-24 23:55:46 +0000 |
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committer | Maciej W. Rozycki <macro@linux-mips.org> | 2013-06-24 23:55:46 +0000 |
commit | 1bbce132647e6d72aaa065cce5c1d5dd6585c2b2 (patch) | |
tree | 484b1e34d1fededaf01dd6cb8c0991e4115b1602 /ld/scripttempl | |
parent | b652c496acc215872de142e84bd227f11715215d (diff) | |
download | gdb-1bbce132647e6d72aaa065cce5c1d5dd6585c2b2.zip gdb-1bbce132647e6d72aaa065cce5c1d5dd6585c2b2.tar.gz gdb-1bbce132647e6d72aaa065cce5c1d5dd6585c2b2.tar.bz2 |
bfd/
* elfxx-mips.h (_bfd_mips_elf_get_synthetic_symtab): New
prototype.
* elf32-mips.c (elf_backend_plt_sym_val): Remove macro.
(bfd_elf32_get_synthetic_symtab): New macro.
* elfxx-mips.c (plt_entry): New structure.
(mips_elf_link_hash_entry): Add use_plt_entry member.
(mips_elf_link_hash_table): Rename plt_entry_size member to
plt_mips_entry_size. Add plt_comp_entry_size, plt_mips_offset,
plt_comp_offset, plt_got_index entries and plt_header_is_comp
members.
(STUB_LW_MICROMIPS, STUB_MOVE_MICROMIPS): New macros.
(STUB_LUI_MICROMIPS, STUB_JALR_MICROMIPS): Likewise.
(STUB_ORI_MICROMIPS, STUB_LI16U_MICROMIPS): Likewise.
(STUB_LI16S_MICROMIPS): Likewise.
(MICROMIPS_FUNCTION_STUB_NORMAL_SIZE): Likewise.
(MICROMIPS_FUNCTION_STUB_BIG_SIZE): Likewise.
(micromips_o32_exec_plt0_entry): New variable.
(mips16_o32_exec_plt_entry): Likewise.
(micromips_o32_exec_plt_entry): Likewise.
(mips_elf_link_hash_newfunc): Initialize use_plt_entry.
(mips_elf_output_extsym): Update to use gotplt_union's plist
member rather than offset.
(mips_elf_gotplt_index): Likewise. Remove the VxWorks
restriction. Use MIPS_ELF_GOT_SIZE to calculate GOT address.
(mips_elf_count_got_symbols): Update to use gotplt_union's plist
member rather than offset.
(mips_elf_calculate_relocation): Handle MIPS16/microMIPS PLT
entries.
(_bfd_mips_elf_create_dynamic_sections): Don't set PLT sizes
here.
(mips_elf_make_plt_record): New function.
(_bfd_mips_elf_check_relocs): Update comment. Record occurences
of JAL relocations that might need a PLT entry.
(_bfd_mips_elf_adjust_dynamic_symbol): Update to use
gotplt_union's plist member rather than offset. Set individual
PLT entry sizes here. Handle MIPS16/microMIPS PLT entries.
Don't set the symbol's value in the symbol table for PLT
references here. Don't set the PLT or PLT GOT section sizes
here.
(mips_elf_estimate_stub_size): Handle microMIPS stubs.
(mips_elf_allocate_lazy_stub): Likewise.
(mips_elf_lay_out_lazy_stubs): Likewise. Define a _MIPS_STUBS_
magic symbol.
(mips_elf_set_plt_sym_value): New function.
(_bfd_mips_elf_size_dynamic_sections): Set PLT header size and
PLT and PLT GOT section sizes here. Set the symbol values in
the symbol table for PLT references here. Handle microMIPS
annotation of the _PROCEDURE_LINKAGE_TABLE_ magic symbol.
(_bfd_mips_elf_finish_dynamic_symbol): Update to use
gotplt_union's plist member rather than offset. Handle
MIPS16/microMIPS PLT entries. Handle microMIPS stubs.
(_bfd_mips_vxworks_finish_dynamic_symbol): Update to use
gotplt_union's plist member rather than offset. Use
MIPS_ELF_GOT_SIZE to calculate GOT address.
(mips_finish_exec_plt): Handle microMIPS PLT. Return status.
(_bfd_mips_elf_finish_dynamic_sections): Handle result from
mips_finish_exec_plt.
(_bfd_mips_elf_link_hash_table_create): Update to use
gotplt_union's plist member rather than offset.
(_bfd_mips_elf_get_synthetic_symtab): New function.
include/elf/
* mips.h (ELF_ST_IS_MIPS_PLT): Respect STO_MIPS16 setting.
(ELF_ST_SET_MIPS_PLT): Likewise.
gdb/
* mips-tdep.c (mips_elf_make_msymbol_special): Handle MIPS16 and
microMIPS synthetic symbols.
ld/
* emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed
as close to .plt as possible.
* scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and
$PLT_NEXT_DATA variables.
ld/testsuite/
* ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support.
* ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_
magic symbol.
* ld-mips-elf/pic-and-nonpic-3b.dd: Likewise.
* ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise.
* ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise.
* ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise.
* ld-mips-elf/stub-dynsym-1-10000.d: Likewise.
* ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise.
* ld-mips-elf/stub-dynsym-1-7fff.d: Likewise.
* ld-mips-elf/stub-dynsym-1-8000.d: Likewise.
* ld-mips-elf/stub-dynsym-1-fff0.d: Likewise.
* ld-mips-elf/tlslib-o32.d: Likewise.
opcodes/
* mips-dis.c (is_mips16_plt_tail): New function.
(print_insn_mips16): Handle MIPS16 PLT entry's GOT slot address
word.
(is_compressed_mode_p): Handle MIPS16/microMIPS PLT entries.
Diffstat (limited to 'ld/scripttempl')
-rw-r--r-- | ld/scripttempl/elf.sc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc index feb118d..318e054 100644 --- a/ld/scripttempl/elf.sc +++ b/ld/scripttempl/elf.sc @@ -10,6 +10,7 @@ # OTHER_READONLY_SECTIONS - other than .text .init .rodata ... # (e.g., .PARISC.milli) # OTHER_TEXT_SECTIONS - these get put in .text when relocating +# INITIAL_READWRITE_SECTIONS - at start of data segment (after relro) # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... # (e.g., .PARISC.global) # OTHER_RELRO_SECTIONS - other than .data.rel.ro ... @@ -33,6 +34,7 @@ # OTHER_SDATA_SECTIONS - sections just after .sdata. # OTHER_BSS_SYMBOLS - symbols that appear at the start of the # .bss section besides __bss_start. +# PLT_NEXT_DATA - .plt next to data segment when .plt is in text segment. # DATA_PLT - .plt should be in data segment, not text segment. # PLT_BEFORE_GOT - .plt just before .got when .plt is in data segement. # BSS_PLT - .plt should be in bss segment @@ -132,7 +134,7 @@ if test -z "$PLT"; then PLT=".plt ${RELOCATING-0} : { *(.plt)${IREL_IN_PLT+ *(.iplt)} } ${IREL_IN_PLT-$IPLT}" fi -test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=yes +test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT= if test -z "$GOT"; then if test -z "$SEPARATE_GOTPLT"; then GOT=".got ${RELOCATING-0} : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }" @@ -463,7 +465,7 @@ cat <<EOF ${RELOCATING+${INIT_END}} } ${FILL} - ${TEXT_PLT+${PLT}} + ${TEXT_PLT+${PLT_NEXT_DATA-${PLT}}} ${TINY_READONLY_SECTION} .text ${RELOCATING-0} : { @@ -527,6 +529,7 @@ cat <<EOF /* These sections are generated by the Sun/Oracle C++ compiler. */ .exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges .exception_ranges*) } + ${TEXT_PLT+${PLT_NEXT_DATA+${PLT}}} /* Adjust the address for the data segment. We want to adjust up to the same address within the page on the next page up. */ @@ -562,6 +565,7 @@ cat <<EOF ${DATA_GOT+${RELRO_NOW+${GOTPLT}}} ${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT+${GOT}}}} ${RELOCATING+${DATA_SEGMENT_RELRO_END}} + ${INITIAL_READWRITE_SECTIONS} ${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT-${GOT}}}} ${DATA_GOT+${RELRO_NOW-${GOTPLT}}} |