http://sourceware.org/bugzilla/show_bug.cgi?id=13082
Bug #: 13082
Summary: Invalid R_X86_64_64 relocation for x32
Product: binutils
Version: 2.22 (HEAD)
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassig...@sources.redhat.com
ReportedBy: hjl.to...@gmail.com
Classification: Unclassified
[hjl@gnu-6 pr-y]$ cat x.s
.text
.globl main
main:
lea .Ljmp(%rip), %rax
jmp *(%rax)
.section .data.rel.ro.local,"aw",@progbits
.align 8, 0x90
.Ljmp:
.quad main
[hjl@gnu-6 pr-y]$ make X32=1
as --x32 -o x.o x.s
./ld -shared -m elf32_x86_64 -o x.so x.o
./ld -pie -m elf32_x86_64 -o x.pie x.o
./ld: warning: cannot find entry symbol _start; defaulting to 0000000000000184
./ld -m elf32_x86_64 -o x x.o
./ld: warning: cannot find entry symbol _start; defaulting to 0000000000400074
readelf -r x
There are no relocations in this file.
readelf -r x.pie
Relocation section '.rela.dyn' at offset 0x178 contains 1 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00200190 00000101 R_X86_64_64 000000d4 .interp + 184
readelf -r x.so
Relocation section '.rela.dyn' at offset 0x140 contains 1 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00200158 00000301 R_X86_64_64 0000014c main + 0
[hjl@gnu-6 pr-y]$
[hjl@gnu-6 pr-x]$ make clean
rm -f a.out *.o *.so
[hjl@gnu-6 pr-x]$ cat x.s
.text
.globl main
main:
lea .Ljmp(%rip), %rax
jmp *(%rax)
.L1:
nop
.section .data.rel.ro.local,"aw",@progbits
.align 8, 0x90
.Ljmp:
.quad .L1
[hjl@gnu-6 pr-x]$ make X32=yes
as --x32 -o x.o x.s
./ld -shared -m elf32_x86_64 -o x.so x.o
./ld -pie -m elf32_x86_64 -o x.pie x.o
./ld: warning: cannot find entry symbol _start; defaulting to 0000000000000184
./ld -m elf32_x86_64 -o x x.o
./ld: warning: cannot find entry symbol _start; defaulting to 0000000000400074
readelf -r x
There are no relocations in this file.
readelf -r x.pie
Relocation section '.rela.dyn' at offset 0x178 contains 1 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00200190 00000101 R_X86_64_64 000000d4 .interp + 18d
readelf -r x.so
Relocation section '.rela.dyn' at offset 0x140 contains 1 entries:
Offset Info Type Sym.Value Sym. Name + Addend
00200158 00000101 R_X86_64_64 0000014c .text + 155
[hjl@gnu-6 pr-x]$
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