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Mark an ALLOC section, which should be placed in special memory area,
with SHF_GNU_MBIND. Its sh_info field indicates the special memory
type. GNU_MBIND section names start with ".mbind" so that they are
placed as orphan sections by linker. All input GNU_MBIND sections
with the same sh_type, sh_flags and sh_info are placed in one output
GNU_MBIND section. In executable and shared object, create a
GNU_MBIND segment for each GNU_MBIND section and its segment type is
PT_GNU_MBIND_LO plus the sh_info value. Each GNU_MBIND segment is
aligned at page boundary.
The assembler syntax:
.section .mbind.foo,"adx",%progbits
^ 0: Special memory type.
|
'd' for SHF_GNU_MBIND.
.section .mbind.foo,"adx",%progbits,0x1
^ 1: Special memory type.
|
'd' for SHF_GNU_MBIND.
.section .mbind.bar,"adG",%progbits,.foo_group,comdat,0x2
^ 2: Special memory type.
|
'd' for SHF_GNU_MBIND.
bfd/
* elf.c (get_program_header_size): Add a GNU_MBIND segment for
each GNU_MBIND section and align GNU_MBIND section to page size.
(_bfd_elf_map_sections_to_segments): Create a GNU_MBIND
segment for each GNU_MBIND section.
(_bfd_elf_init_private_section_data): Copy sh_info from input
for GNU_MBIND section.
binutils/
* NEWS: Mention support for ELF SHF_GNU_MBIND and
PT_GNU_MBIND_XXX.
* readelf.c (get_segment_type): Handle PT_GNU_MBIND_XXX.
(get_elf_section_flags): Handle SHF_GNU_MBIND.
(process_section_headers): Likewise.
* testsuite/binutils-all/mbind1.s: New file.
* testsuite/binutils-all/objcopy.exp: Run readelf test on
mbind1.s.
gas/
* NEWS: Mention support for ELF SHF_GNU_MBIND.
* config/obj-elf.c (section_match): New.
(get_section): Match both sh_info and group name.
(obj_elf_change_section): Add argument for sh_info. Pass both
sh_info and group name to get_section. Issue an error for
SHF_GNU_MBIND section without SHF_ALLOC. Set sh_info.
(obj_elf_parse_section_letters): Set SHF_GNU_MBIND for 'd'.
(obj_elf_section): Support SHF_GNU_MBIND section info.
* config/obj-elf.h (obj_elf_change_section): Add argument for
sh_info.
* config/tc-arm.c (start_unwind_section): Pass 0 as sh_info to
obj_elf_change_section.
* config/tc-ia64.c (obj_elf_vms_common): Likewise.
* config/tc-microblaze.c (microblaze_s_data): Likewise.
(microblaze_s_sdata): Likewise.
(microblaze_s_rdata): Likewise.
(microblaze_s_bss): Likewise.
* config/tc-mips.c (s_change_section): Likewise.
* config/tc-msp430.c (msp430_profiler): Likewise.
* config/tc-rx.c (parse_rx_section): Likewise.
* config/tc-tic6x.c (tic6x_start_unwind_section): Likewise.
* doc/as.texinfo: Document 'd' for SHF_GNU_MBIND.
* testsuite/gas/elf/elf.exp: Run section12a, section12b and
section13.
* testsuite/gas/elf/section10.d: Updated.
* testsuite/gas/elf/section10.s: Likewise.
* testsuite/gas/elf/section12.s: New file.
* testsuite/gas/elf/section12a.d: Likewise.
* testsuite/gas/elf/section12b.d: Likewise.
* testsuite/gas/elf/section13.l: Likewise.
* testsuite/gas/elf/section13.d: Likewise.
* testsuite/gas/elf/section13.s: Likewise.
include/
* elf/common.h (PT_GNU_MBIND_NUM): New.
(PT_GNU_MBIND_LO): Likewise.
(PT_GNU_MBIND_HI): Likewise.
(SHF_GNU_MBIND): Likewise.
ld/
* NEWS: Mention support for ELF SHF_GNU_MBIND and
PT_GNU_MBIND_XXX.
* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Place
input GNU_MBIND sections with the same type, attributes and
sh_info field into a single output GNU_MBIND section.
* testsuite/ld-elf/elf.exp: Run mbind2a and mbind2b.
* testsuite/ld-elf/mbind1.s: New file.
* testsuite/ld-elf/mbind1a.d: Likewise.
* testsuite/ld-elf/mbind1b.d: Likewise.
* testsuite/ld-elf/mbind1c.d: Likewise.
* testsuite/ld-elf/mbind2a.s: Likewise.
* testsuite/ld-elf/mbind2b.c: Likewise.
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|---|---|---|
| .. | ||
| aarch64 | ||
| arc | ||
| arm | ||
| bfin | ||
| hppa | ||
| i386 | ||
| m68k | ||
| mips | ||
| vax | ||
| wasm32 | ||
| windres | ||
| x86-64 | ||
| add-empty-section.d | ||
| add-section.d | ||
| add-symbol.d | ||
| alias-2.def | ||
| alias.def | ||
| ar.exp | ||
| bintest.s | ||
| common-1.s | ||
| common-1a.d | ||
| common-1b.d | ||
| common-1c.d | ||
| common-1d.d | ||
| common-1e.d | ||
| common-1f.d | ||
| common-2.s | ||
| common-2a.d | ||
| common-2b.d | ||
| common-2c.d | ||
| common-2d.d | ||
| common-2e.d | ||
| common-2f.d | ||
| compress.exp | ||
| copy-1.d | ||
| copy-1.s | ||
| copy-2.d | ||
| copy-3.d | ||
| copy-4.d | ||
| copytest.s | ||
| data-sections.s | ||
| debug_str.d | ||
| debug_str.s | ||
| dlltool.exp | ||
| dumptest.s | ||
| dw2-1.S | ||
| dw2-1.W | ||
| dw2-2.S | ||
| dw2-3.rS | ||
| dw2-3.rt | ||
| dw2-3.S | ||
| dw2-3.W | ||
| dw2-3gabi.W | ||
| dw2-compressed.S | ||
| dw2-decodedline-1.S | ||
| dw2-decodedline.S | ||
| dw2-empty.S | ||
| dw2-ranges.S | ||
| dw2-ranges.W | ||
| dw5.S | ||
| dw5.W | ||
| elfedit-1.d | ||
| elfedit-2.d | ||
| elfedit-3.d | ||
| elfedit-4.d | ||
| elfedit-5.d | ||
| elfedit.exp | ||
| empty | ||
| empty-file | ||
| empty.s | ||
| exclude-1.s | ||
| exclude-1a.d | ||
| exclude-1b.d | ||
| fastcall.def | ||
| group-2.s | ||
| group-3.s | ||
| group-4.s | ||
| group-5.d | ||
| group-5.s | ||
| group-6.d | ||
| group-6.s | ||
| group.s | ||
| libdw2-compressed.out | ||
| libdw2-compressedgabi.out | ||
| libdw2.out | ||
| link-order.s | ||
| localize-hidden-1.d | ||
| localize-hidden-1.s | ||
| localize-hidden-2.d | ||
| localize-hidden-2.s | ||
| mbind1.s | ||
| needed-by-reloc.s | ||
| nm-1.s | ||
| nm-elf-1.s | ||
| nm-ver.s | ||
| nm.exp | ||
| note-1.d | ||
| note-2-32.d | ||
| note-2-32.s | ||
| note-2-64.d | ||
| note-2-64.s | ||
| objcopy.exp | ||
| objdump.exp | ||
| objdump.s | ||
| objdump.W | ||
| objdump.WL | ||
| only-section-01.d | ||
| pr18374.s | ||
| pr19020.in | ||
| pr19020a.d | ||
| pr19020b.d | ||
| pr19547.c | ||
| readelf.exp | ||
| readelf.h | ||
| readelf.n | ||
| readelf.pr18374 | ||
| readelf.r | ||
| readelf.r-64 | ||
| readelf.s | ||
| readelf.s-64 | ||
| readelf.ss | ||
| readelf.ss-64 | ||
| readelf.ss-mips | ||
| readelf.ss-tmips | ||
| readelf.wa | ||
| readelf.z | ||
| remove-relocs-01.d | ||
| remove-relocs-01.s | ||
| remove-relocs-02.d | ||
| remove-relocs-03.d | ||
| remove-relocs-04.d | ||
| remove-relocs-05.d | ||
| remove-relocs-06.d | ||
| remove-section-01.d | ||
| size.exp | ||
| strip-1.d | ||
| strip-2.d | ||
| strip-3.d | ||
| strip-4.d | ||
| strip-5.d | ||
| strip-6.d | ||
| strip-7.d | ||
| strip-8.d | ||
| strip-9.d | ||
| strip-10.d | ||
| strip-11.d | ||
| strip-12.d | ||
| strip-12.s | ||
| symbols-1.d | ||
| symbols-2.d | ||
| symbols-3.d | ||
| symbols-4.d | ||
| symbols.s | ||
| testprog.c | ||
| testranges-ia64.d | ||
| testranges-ia64.s | ||
| testranges.d | ||
| testranges.s | ||
| unique.s | ||
| unknown.s | ||
| update-1.s | ||
| update-2.s | ||
| update-3.s | ||
| update-4.s | ||
| update-section.exp | ||
| version.def | ||
| version.s | ||
| z.s | ||