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954b63d4c8
-z nodynamic-undefined-weak is only implemented for x86. (The sparc backend has some support code but doesn't enable the option by including ld/emulparams/dynamic_undefined_weak.sh, and since the support looks like it may be broken I haven't enabled it.) This patch adds the complementary -z dynamic-undefined-weak, extends both options to affect building of shared libraries as well as executables, and adds support for the option on powerpc. include/ * bfdlink.h (struct bfd_link_info <dynamic_undefined_weak>): Revise comment. bfd/ * elflink.c (_bfd_elf_adjust_dynamic_symbol): Hide undefweak or make dynamic for info->dynamic_undefined_weak 0 and 1. * elf32-ppc.c:Formatting. (ensure_undefweak_dynamic): Don't make dynamic when info->dynamic_undefined_weak is zero. (allocate_dynrelocs): Discard undefweak dyn_relocs for info->dynamic_undefined_weak. Discard undef dyn_relocs when not default visibility. Discard undef and undefweak dyn_relocs earlier. (ppc_elf_relocate_section): Adjust to suit. * elf64-ppc.c: Formatting. (ensure_undefweak_dynamic): Don't make dynamic when info->dynamic_undefined_weak is zero. (allocate_dynrelocs): Discard undefweak dyn_relocs for info->dynamic_undefined_weak. Discard them earlier. ld/ * ld.texinfo (dynamic-undefined-weak): Document. (nodynamic-undefined-weak): Document that this option now can be used with shared libs. * emulparams/dynamic_undefined_weak.sh: Support -z dynamic-undefined-weak. * emulparams/elf32ppccommon.sh: Include dynamic_undefined_weak.sh. * testsuite/ld-undefined/weak-undef.exp (undef_weak_so), (undef_weak_exe): New. Use them. Add -z dynamic-undefined-weak and -z nodynamic-undefined-weak tests. * Makefile.am: Update powerpc dependencies. * Makefile.in: Regenerate.
59 lines
1.9 KiB
Bash
59 lines
1.9 KiB
Bash
# The PLT-agnostic parts of a generic 32-bit ELF PowerPC target. Included by:
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# elf32ppc.sh elf32ppcvxworks.sh elf64ppc.sh
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. ${srcdir}/emulparams/dynamic_undefined_weak.sh
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TEMPLATE_NAME=elf32
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GENERATE_SHLIB_SCRIPT=yes
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GENERATE_PIE_SCRIPT=yes
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SCRIPT_NAME=elf
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OUTPUT_FORMAT="elf32-powerpc"
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NO_REL_RELOCS=yes
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TEXT_START_ADDR=0x01800000
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MAXPAGESIZE="CONSTANT (MAXPAGESIZE)"
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COMMONPAGESIZE="CONSTANT (COMMONPAGESIZE)"
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ARCH=powerpc:common
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MACHINE=
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EXECUTABLE_SYMBOLS='PROVIDE (__stack = 0); PROVIDE (___stack = 0);'
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if test -z "${CREATE_SHLIB}"; then
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SBSS_START_SYMBOLS="PROVIDE (__sbss_start = .); PROVIDE (___sbss_start = .);"
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SBSS_END_SYMBOLS="PROVIDE (__sbss_end = .); PROVIDE (___sbss_end = .);"
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else
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unset SDATA_START_SYMBOLS
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unset SDATA2_START_SYMBOLS
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unset SBSS_START_SYMBOLS
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unset SBSS_END_SYMBOLS
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fi
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OTHER_END_SYMBOLS="__end = .;"
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OTHER_RELRO_SECTIONS="
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.fixup ${RELOCATING-0} : { *(.fixup) }
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.got1 ${RELOCATING-0} : { *(.got1) }
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.got2 ${RELOCATING-0} : { *(.got2) }
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"
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OTHER_GOT_RELOC_SECTIONS="
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.rela.got1 ${RELOCATING-0} : { *(.rela.got1) }
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.rela.got2 ${RELOCATING-0} : { *(.rela.got2) }
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"
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# Treat a host that matches the target with the possible exception of "64"
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# in the name as if it were native.
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if test `echo "$host" | sed -e s/64//` = `echo "$target" | sed -e s/64//`; then
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case " $EMULATION_LIBPATH " in
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*" ${EMULATION_NAME} "*)
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NATIVE=yes
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;;
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esac
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fi
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# Look for 64 bit target libraries in /lib64, /usr/lib64 etc., first.
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# Similarly, look for 32 bit libraries in /lib32, /usr/lib32 etc.
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case `echo "$target" | sed -e 's/-.*//'`:"$EMULATION_NAME" in
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*le:*64lppc*) LIBPATH_SUFFIX=64 ;;
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*le:*32lppc*) LIBPATH_SUFFIX=32 ;;
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*le:*64*) LIBPATH_SUFFIX=64be ;;
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*le:*32*) LIBPATH_SUFFIX=32be ;;
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*:*64lppc*) LIBPATH_SUFFIX=64le ;;
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*:*32lppc*) LIBPATH_SUFFIX=32le ;;
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*:*64*) LIBPATH_SUFFIX=64 ;;
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*:*32*) LIBPATH_SUFFIX=32 ;;
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esac
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