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[ELF] Error for out-of-range R_X86_64_[REX_]GOTPCRELX 

Reviewed By: grimar

Differential Revision: https://reviews.llvm.org/D93259
This commit is contained in:
Fangrui Song 2020-12-15 09:20:06 -08:00
parent 5a2a8369e8
commit c8da71b53f
2 changed files with 27 additions and 1 deletions
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3
lld/ELF/Arch/X86_64.cpp
View File

@ -828,7 +828,8 @@ static void relaxGotNoPic(uint8_t *loc, uint64_t val, uint8_t op,
write32le(loc, val);
}
void X86_64::relaxGot(uint8_t *loc, const Relocation &, uint64_t val) const {
void X86_64::relaxGot(uint8_t *loc, const Relocation &rel, uint64_t val) const {
checkInt(loc, val, 32, rel);
const uint8_t op = loc[-2];
const uint8_t modRm = loc[-1];

25
lld/test/ELF/x86-64-gotpc-err.s Normal file
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@ -0,0 +1,25 @@
# REQUIRES: x86
# RUN: split-file %s %t
# RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o
# RUN: not ld.lld -T %t/lds %t/a.o -o /dev/null 2>&1 | FileCheck %s
# CHECK: error: {{.*}}:(.text+0x2): relocation R_X86_64_GOTPCRELX out of range: 2147483655 is not in [-2147483648, 2147483647]; references data
# CHECK: error: {{.*}}:(.text+0x9): relocation R_X86_64_REX_GOTPCRELX out of range: 2147483648 is not in [-2147483648, 2147483647]; references data
# CHECK-NOT: error:
#--- a.s
movl data@GOTPCREL(%rip), %eax # out of range
movq data@GOTPCREL(%rip), %rax # out of range
movq data@GOTPCREL(%rip), %rax # in range
.data
.space 13
.globl data
data:
.long 0
#--- lds
SECTIONS {
.text 0x200000 : { *(.text) }
.data 0x80200000 : { *(.data) }
}