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| author | Alan Modra <amodra@gmail.com> | 2018-11-30 15:34:11 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2018-11-30 16:18:58 +1030 |
| commit | ba85c15dabe144e4bcee5a1b388b32bee10729e1 (patch) | |
| tree | ddf634de67d2a3d2c662c569788b3607b9995048 /ld/testsuite | |
| parent | f746c08f26dd71fdd809bad8cb92a6cbb8336ec4 (diff) | |
| download | gdb-ba85c15dabe144e4bcee5a1b388b32bee10729e1.zip gdb-ba85c15dabe144e4bcee5a1b388b32bee10729e1.tar.gz gdb-ba85c15dabe144e4bcee5a1b388b32bee10729e1.tar.bz2 | |
PR23937, powerpc64le local ifunc IRELATIVE relocs are wrong
IFUNC resolvers must always be called via their global entry point.
They will be called from ld.so rather than from the local executable.
PR 23937
bfd/
* elf64-ppc.c (write_plt_relocs_for_local_syms): Don't add local
entry offset for ifuncs.
ld/
* testsuite/ld-powerpc/pr23937.d,
* testsuite/ld-powerpc/pr23937.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
Diffstat (limited to 'ld/testsuite')
| -rw-r--r-- | ld/testsuite/ld-powerpc/powerpc.exp | 1 | ||||
| -rw-r--r-- | ld/testsuite/ld-powerpc/pr23937.d | 10 | ||||
| -rw-r--r-- | ld/testsuite/ld-powerpc/pr23937.s | 65 |
3 files changed, 76 insertions, 0 deletions
diff --git a/ld/testsuite/ld-powerpc/powerpc.exp b/ld/testsuite/ld-powerpc/powerpc.exp index 12590f1..826dfed 100644 --- a/ld/testsuite/ld-powerpc/powerpc.exp +++ b/ld/testsuite/ld-powerpc/powerpc.exp @@ -334,6 +334,7 @@ if [ supports_ppc64 ] then { run_dump_test "dotsym2" run_dump_test "dotsym3" run_dump_test "dotsym4" + run_dump_test "pr23937" } run_dump_test "tlsld32" diff --git a/ld/testsuite/ld-powerpc/pr23937.d b/ld/testsuite/ld-powerpc/pr23937.d new file mode 100644 index 0000000..6ef79e8 --- /dev/null +++ b/ld/testsuite/ld-powerpc/pr23937.d @@ -0,0 +1,10 @@ +#as: -a64 +#ld: -melf64ppc --defsym puts=0 --defsym _start=0 +#readelf: -srW +# Check that the IRELATIVE addend is magic+0, not magic+8 + +#... +.* R_PPC64_IRELATIVE +10000180 +#... +.*: 0+10000180 +20 IFUNC +LOCAL +DEFAULT .* magic +#pass diff --git a/ld/testsuite/ld-powerpc/pr23937.s b/ld/testsuite/ld-powerpc/pr23937.s new file mode 100644 index 0000000..155e53a --- /dev/null +++ b/ld/testsuite/ld-powerpc/pr23937.s @@ -0,0 +1,65 @@ + .abiversion 2 + .text + .p2align 4,,15 + .type implementation, @function +implementation: +.LCF0: + addis 2,12,.TOC.-.LCF0@ha + addi 2,2,.TOC.-.LCF0@l + .localentry implementation,.-implementation + mflr 0 + addis 3,2,.LC0@toc@ha + addi 3,3,.LC0@toc@l + std 0,16(1) + stdu 1,-32(1) + bl puts + nop + addi 1,1,32 + li 3,0 + ld 0,16(1) + mtlr 0 + blr + .size implementation,.-implementation + + .p2align 4,,15 + .type resolver, @function +resolver: +.LCF1: + addis 2,12,.TOC.-.LCF1@ha + addi 2,2,.TOC.-.LCF1@l + .localentry resolver,.-resolver + addis 3,2,implementation@toc@ha + addi 3,3,implementation@toc@l + blr + .size resolver,.-resolver + + .type magic, @gnu_indirect_function + .set magic,resolver + + .section .text.startup,"ax",@progbits + .p2align 4,,15 + .globl main + .type main, @function +main: +.LCF2: + addis 2,12,.TOC.-.LCF2@ha + addi 2,2,.TOC.-.LCF2@l + .localentry main,.-main + mflr 0 + std 0,16(1) + stdu 1,-32(1) + bl magic + nop + addi 1,1,32 + cntlzw 3,3 + ld 0,16(1) + srwi 3,3,5 + mtlr 0 + xori 3,3,0x1 + blr + .size main,.-main + + .section .rodata.str1.8,"aMS",@progbits,1 + .p2align 3 +.LC0: + .string "'ere I am JH" |