4c10bbaa09
Add -z noreloc-overflow command-line option to the x86-64 ELF linker to
disable relocation overflow check. This can be used to avoid relocation
overflow check if there will be no dynamic relocation overflow at
run-time.
bfd/
PR ld/19807
* elf64-x86-64.c (elf_x86_64_relocate_section): Check
no_reloc_overflow_check to diable R_X86_64_32/R_X86_64_32S
relocation overflow check.
include/
PR ld/19807
* bfdlink.h (bfd_link_info): Add no_reloc_overflow_check.
ld/
PR ld/19807
* Makefile.am (ELF_X86_DEPS): Add
$(srcdir)/emulparams/reloc_overflow.sh.
* Makefile.in: Regenerated.
* NEWS: Mention -z noreloc-overflow.
* ld.texinfo: Document -z noreloc-overflow.
* emulparams/elf32_x86_64.sh: Source
${srcdir}/emulparams/reloc_overflow.sh.
* emulparams/elf_x86_64.sh: Likewise.
* emulparams/reloc_overflow.sh: New file.
* testsuite/ld-x86-64/pr19807-1.s: New file.
* testsuite/ld-x86-64/pr19807-1a.d: Likewise.
* testsuite/ld-x86-64/pr19807-1b.d: Likewise.
* testsuite/ld-x86-64/pr19807-2.s: Likewise.
* testsuite/ld-x86-64/pr19807-2a.d: Likewise.
* testsuite/ld-x86-64/pr19807-2b.d: Likewise.
* testsuite/ld-x86-64/pr19807-2c.d: Likewise.
* testsuite/ld-x86-64/pr19807-2d.d: Likewise.
* testsuite/ld-x86-64/pr19807-2e.d: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run PR ld/19807 tests.
60 lines
1.7 KiB
Bash
60 lines
1.7 KiB
Bash
. ${srcdir}/emulparams/plt_unwind.sh
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. ${srcdir}/emulparams/extern_protected_data.sh
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. ${srcdir}/emulparams/dynamic_undefined_weak.sh
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. ${srcdir}/emulparams/reloc_overflow.sh
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. ${srcdir}/emulparams/call_nop.sh
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SCRIPT_NAME=elf
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ELFSIZE=64
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OUTPUT_FORMAT="elf64-x86-64"
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NO_REL_RELOCS=yes
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TEXT_START_ADDR=0x400000
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MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
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COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
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ARCH="i386:x86-64"
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MACHINE=
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TEMPLATE_NAME=elf32
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GENERATE_SHLIB_SCRIPT=yes
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GENERATE_PIE_SCRIPT=yes
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NO_SMALL_DATA=yes
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LARGE_SECTIONS=yes
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LARGE_BSS_AFTER_BSS=
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SEPARATE_GOTPLT="SIZEOF (.got.plt) >= 24 ? 24 : 0"
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IREL_IN_PLT=
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# Reuse TINY_READONLY_SECTION which is placed right after .plt section.
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TINY_READONLY_SECTION="
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.plt.got ${RELOCATING-0} : { *(.plt.got) }
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.plt.bnd ${RELOCATING-0} : { *(.plt.bnd) }
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"
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if [ "x${host}" = "x${target}" ]; then
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case " $EMULATION_LIBPATH " in
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*" ${EMULATION_NAME} "*)
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NATIVE=yes
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esac
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fi
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# Linux/Solaris modify the default library search path to first include
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# a 64-bit specific directory.
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case "$target" in
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x86_64*-linux*|i[3-7]86-*-linux-*)
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case "$EMULATION_NAME" in
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*64*)
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LIBPATH_SUFFIX=64
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PARSE_AND_LIST_OPTIONS_BNDPLT='
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fprintf (file, _("\
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-z bndplt Always generate BND prefix in PLT entries\n"));
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'
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PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT='
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else if (strcmp (optarg, "bndplt") == 0)
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link_info.bndplt = TRUE;
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'
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PARSE_AND_LIST_OPTIONS="$PARSE_AND_LIST_OPTIONS $PARSE_AND_LIST_OPTIONS_BNDPLT"
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PARSE_AND_LIST_ARGS_CASE_Z="$PARSE_AND_LIST_ARGS_CASE_Z $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT"
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;;
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esac
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;;
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*-*-solaris2*)
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LIBPATH_SUFFIX=/amd64
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ELF_INTERPRETER_NAME=\"/lib/amd64/ld.so.1\"
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;;
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esac
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