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22216541c1
This implements padding of orphan executable sections for PowerPC. Of course, the simple implementation of bfd_arch_ppc_nop_fill and removing the NOP definition didn't work, with powerpc64 hitting a testsuite failure linking to S-records. That's because the srec target is BFD_ENDIAN_UNKNOWN so the test of bfd_big_endian (abfd) in default_data_link_order therefore returned false, resulting in a little-endian nop pattern. The rest of the patch fixes that problem by adding a new field to bfd_link_info that can be used to determine actual endianness on targets like srec. PR 13616 include/ * bfdlink.h (struct bfd_link_info <big_endian>): New field. bfd/ * cpu-powerpc.c (bfd_arch_ppc_nop_fill): New function, use it for all ppc arch info. * linker.c (default_data_link_order): Pass info->big_endian to arch_info->fill function. ld/ * emulparams/elf64lppc.sh (NOP): Don't define. * emulparams/elf64ppc.sh (NOP): Don't define. * ldwrite.c (build_link_order): Use link_info.big_endian. Move code determining endian to use for data_statement to.. * ldemul.c (after_open_default): ..here. Set link_info.big_endian.
51 lines
1.6 KiB
Bash
51 lines
1.6 KiB
Bash
source_sh ${srcdir}/emulparams/elf32ppccommon.sh
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source_sh ${srcdir}/emulparams/plt_unwind.sh
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EXTRA_EM_FILE=ppc64elf
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ELFSIZE=64
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OUTPUT_FORMAT="elf64-powerpc"
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TEXT_START_ADDR=0x10000000
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#SEGMENT_SIZE=0x10000000
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ARCH=powerpc:common64
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unset EXECUTABLE_SYMBOLS
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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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unset OTHER_END_SYMBOLS
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unset OTHER_RELRO_SECTIONS
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OTHER_TEXT_SECTIONS="*(.sfpr .glink)"
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OTHER_SDATA_SECTIONS="
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.tocbss ${RELOCATING-0} :${RELOCATING+ ALIGN(8)} { *(.tocbss)}"
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if test x${RELOCATING+set} = xset; then
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GOT="
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.got : ALIGN(256) { *(.got .toc) }"
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else
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GOT="
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.got 0 : { *(.got) }
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.toc 0 : { *(.toc) }"
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fi
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# Put .opd relocs first so ld.so will process them before any ifunc relocs.
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INITIAL_RELOC_SECTIONS="
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.rela.opd ${RELOCATING-0} : { *(.rela.opd) }"
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OTHER_GOT_RELOC_SECTIONS="
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.rela.toc ${RELOCATING-0} : { *(.rela.toc) }
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.rela.toc1 ${RELOCATING-0} : { *(.rela.toc1) }
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.rela.tocbss ${RELOCATING-0} : { *(.rela.tocbss) }
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.rela.branch_lt ${RELOCATING-0} : { *(.rela.branch_lt) }"
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OTHER_RELRO_SECTIONS_2="
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.opd ${RELOCATING-0} :${RELOCATING+ ALIGN(8)} { KEEP (*(.opd)) }
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.toc1 ${RELOCATING-0} :${RELOCATING+ ALIGN(8)} { *(.toc1) }
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.branch_lt ${RELOCATING-0} :${RELOCATING+ ALIGN(8)} { *(.branch_lt) }"
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INITIAL_READWRITE_SECTIONS="
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.toc ${RELOCATING-0} :${RELOCATING+ ALIGN(8)} { *(.toc) }"
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# Put .got before .data
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DATA_GOT=" "
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# Always make .got read-only after relocation
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SEPARATE_GOTPLT=0
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# Also put .sdata before .data
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DATA_SDATA=" "
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# and .plt/.iplt before .data
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DATA_PLT=
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PLT_BEFORE_GOT=" "
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