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[ELF] Error for out-of-range R_PPC64_ADDR16_HA, R_PPC64_ADDR16_HI and their friends

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There are no tests for REL16_* and TPREL16_*.
This commit is contained in:
Fangrui Song 2021-01-19 11:16:27 -08:00
parent d39adeaf44
commit e12e0d66c0
2 changed files with 25 additions and 2 deletions
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7
lld/ELF/Arch/PPC64.cpp
View File

@ -407,7 +407,7 @@ public:
// document. // document.
static uint16_t lo(uint64_t v) { return v; } static uint16_t lo(uint64_t v) { return v; }
static uint16_t hi(uint64_t v) { return v >> 16; } static uint16_t hi(uint64_t v) { return v >> 16; }
static uint16_t ha(uint64_t v) { return (v + 0x8000) >> 16; } static uint64_t ha(uint64_t v) { return (v + 0x8000) >> 16; }
static uint16_t higher(uint64_t v) { return v >> 32; } static uint16_t higher(uint64_t v) { return v >> 32; }
static uint16_t highera(uint64_t v) { return (v + 0x8000) >> 32; } static uint16_t highera(uint64_t v) { return (v + 0x8000) >> 32; }
static uint16_t highest(uint64_t v) { return v >> 48; } static uint16_t highest(uint64_t v) { return v >> 48; }
@ -1219,12 +1219,15 @@ void PPC64::relocate(uint8_t *loc, const Relocation &rel, uint64_t val) const {
case R_PPC64_TPREL16_HA: case R_PPC64_TPREL16_HA:
if (config->tocOptimize && shouldTocOptimize && ha(val) == 0) if (config->tocOptimize && shouldTocOptimize && ha(val) == 0)
writeFromHalf16(loc, NOP); writeFromHalf16(loc, NOP);
else else {
checkInt(loc, val + 0x8000, 32, rel);
write16(loc, ha(val)); write16(loc, ha(val));
}
break; break;
case R_PPC64_ADDR16_HI: case R_PPC64_ADDR16_HI:
case R_PPC64_REL16_HI: case R_PPC64_REL16_HI:
case R_PPC64_TPREL16_HI: case R_PPC64_TPREL16_HI:
checkInt(loc, val, 32, rel);
write16(loc, hi(val)); write16(loc, hi(val));
break; break;
case R_PPC64_ADDR16_HIGHER: case R_PPC64_ADDR16_HIGHER:

20
lld/test/ELF/ppc64-reloc-addr16-err.s Normal file
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@ -0,0 +1,20 @@
# REQUIRES: ppc
# RUN: llvm-mc -filetype=obj -triple=ppc64le --defsym HI=1 %s -o %thi.o
# RUN: ld.lld %thi.o --defsym=a=0x7fffffff -o /dev/null
# RUN: not ld.lld %thi.o --defsym=a=0x80000000 -o /dev/null
# RUN: ld.lld %thi.o --defsym=a=0xffffffff80000000 -o /dev/null
# RUN: not ld.lld %thi.o --defsym=a=0xffffffff7fffffff -o /dev/null
# RUN: llvm-mc -filetype=obj -triple=ppc64le --defsym HA=1 %s -o %tha.o
# RUN: ld.lld %tha.o --defsym=a=0x7fff7fff -o /dev/null
# RUN: not ld.lld %tha.o --defsym=a=0x7fff8000 -o /dev/null
# RUN: ld.lld %tha.o --defsym=a=0xffffffff7fff8000 -o /dev/null
# RUN: not ld.lld %tha.o --defsym=a=0xffffffff7fff7fff -o /dev/null
.ifdef HI
lis 4, a@h # R_PPC64_ADDR16_HI
.endif
.ifdef HA
lis 4, a@ha # R_PPC64_ADDR16_HA
.endif