https://sourceware.org/bugzilla/show_bug.cgi?id=18609
Bug ID: 18609
Summary: Invalid R_X86_64_GOTPCREL -> R_X86_64_PC32 conversions
Product: binutils
Version: 2.26 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gold
Assignee: ccoutant at gmail dot com
Reporter: hjl.tools at gmail dot com
CC: ian at airs dot com
Target Milestone: ---
[hjl@gnu-6 pr18591]$ cat x.S
.data
#if 1
.space 0x8ff00000
#else
.space 0x70000000
#endif
.hidden foo
.globl foo
// .type foo, @object
foo:
.byte 20
// .size foo, .-foo
local:
.byte 20
.text
.globl _start
.type _start, @function
_start:
movq foo@GOTPCREL(%rip), %rax
movq local@GOTPCREL(%rip), %rax
.size _start, .-_start
[hjl@gnu-6 pr18591]$ make LD=ld.gold
gcc -c -o x.o x.S
ld.gold -z max-page-size=0x200000 -shared -o x.so x.o
objdump -dw x.so
x.so: file format elf64-x86-64
Disassembly of section .text:
00000000000001e0 <_start>:
1e0: 48 8d 05 e1 00 10 90 lea -0x6fefff1f(%rip),%rax #
ffffffff901002c8 <__bss_start+0xfffffffefffffffe>
1e7: 48 8d 05 db 00 10 90 lea -0x6fefff25(%rip),%rax #
ffffffff901002c9 <__bss_start+0xfffffffeffffffff>
[hjl@gnu-6 pr18591]$
gold failed to check if R_X86_64_PC32 will overflow when converting
R_X86_64_GOTPCREL to R_X86_64_PC32.
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