https://sourceware.org/bugzilla/show_bug.cgi?id=25756
Bug ID: 25756
Summary: absolute_symbol@GOTPCREL (@GOT) is mishandled
Product: binutils
Version: 2.35 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: gas
Assignee: unassigned at sourceware dot org
Reporter: hjl.tools at gmail dot com
Target Milestone: ---
Target: i386, x86-64
[hjl@gnu-cfl-2 pr25754]$ cat yy.S
.text
.p2align 4
.globl get_bar
.type get_bar, @function
get_bar:
.cfi_startproc
movq bar@GOTPCREL(%rip), %rax
ret
.cfi_endproc
.size get_bar, .-get_bar
bar = 0x1fffffff0
.section .note.GNU-stack,"",@progbits
[hjl@gnu-cfl-2 pr25754]$ gcc -c yy.S
[hjl@gnu-cfl-2 pr25754]$ readelf -r yy.o
Relocation section '.rela.text' at offset 0x1b8 contains 1 entry:
Offset Info Type Sym. Value Sym. Name +
Addend
000000000003 00000000002a R_X86_64_REX_GOTP 1ffffffec
Relocation section '.rela.eh_frame' at offset 0x1d0 contains 1 entry:
Offset Info Type Sym. Value Sym. Name +
Addend
000000000020 000100000002 R_X86_64_PC32 0000000000000000 .text + 0
[hjl@gnu-cfl-2 pr25754]$ clang -c yy.S
[hjl@gnu-cfl-2 pr25754]$ readelf -r yy.o
Relocation section '.rela.text' at offset 0xd8 contains 1 entry:
Offset Info Type Sym. Value Sym. Name +
Addend
000000000003 000100000009 R_X86_64_GOTPCREL 00000001fffffff0 bar - 4
Relocation section '.rela.eh_frame' at offset 0xf0 contains 1 entry:
Offset Info Type Sym. Value Sym. Name +
Addend
000000000020 000200000002 R_X86_64_PC32 0000000000000000 .text + 0
[hjl@gnu-cfl-2 pr25754]$
[hjl@gnu-cfl-2 pr25754]$ cat yy-32.S
.text
.p2align 4
.globl get_bar
.type get_bar, @function
get_bar:
.cfi_startproc
movl bar@GOT(%eax), %eax
ret
.cfi_endproc
.size get_bar, .-get_bar
bar = 0xfffffff0
.section .note.GNU-stack,"",@progbits
[hjl@gnu-cfl-2 pr25754]$ gcc -c yy-32.S -m32
[hjl@gnu-cfl-2 pr25754]$ readelf -r yy-32.o
Relocation section '.rel.eh_frame' at offset 0x15c contains 1 entry:
Offset Info Type Sym.Value Sym. Name
00000020 00000102 R_386_PC32 00000000 .text
[hjl@gnu-cfl-2 pr25754]$ clang -c yy-32.S -m32
[hjl@gnu-cfl-2 pr25754]$ readelf -r yy-32.o
Relocation section '.rel.text' at offset 0xb4 contains 1 entry:
Offset Info Type Sym.Value Sym. Name
00000002 00000103 R_386_GOT32 fffffff0 bar
Relocation section '.rel.eh_frame' at offset 0xbc contains 1 entry:
Offset Info Type Sym.Value Sym. Name
00000020 00000202 R_386_PC32 00000000 .text
[hjl@gnu-cfl-2 pr25754]$
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