https://sourceware.org/bugzilla/show_bug.cgi?id=26583
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|erroneous address |R_X86_64_PC32 relocation
|relocation: Mircrosoft COFF |against data symbol is
|.BSS linked to .ELF using |mishandled
|ld |
Target| |pe-x86-64
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-cfl-2 ldBugDemo0]$ cat x.S
.text
.align 16
.globl getaddr1
.def getaddr1; .scl 2; .type 32; .endef
getaddr1:
leaq var(%rip), %rax
ret
.comm var, 1 # 1
[hjl@gnu-cfl-2 ldBugDemo0]$ ./as -o x.o x.S
[hjl@gnu-cfl-2 ldBugDemo0]$ ./objdump -dwr x.o
x.o: file format pe-x86-64
Disassembly of section .text:
0000000000000000 <getaddr1>:
0: 48 8d 05 00 00 00 00 lea 0x0(%rip),%rax # 7
<getaddr1+0x7>3: R_X86_64_PC32 var-0x1
7: c3 ret
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: 90 nop
d: 90 nop
e: 90 nop
f: 90 nop
[hjl@gnu-cfl-2 ldBugDemo0]$ ./ld x.o
./ld: warning: cannot find entry symbol _start; defaulting to 0000000000401000
[hjl@gnu-cfl-2 ldBugDemo0]$ objdump -dw a.out
a.out: file format elf64-x86-64
Disassembly of section .text:
0000000000401000 <getaddr1>:
401000: 48 8d 05 f8 0f 00 00 lea 0xff8(%rip),%rax # 401fff
<getaddr1+0xfff>
^^^^
Wrong address.
401007: c3 ret
401008: 90 nop
401009: 90 nop
40100a: 90 nop
40100b: 90 nop
40100c: 90 nop
40100d: 90 nop
40100e: 90 nop
40100f: 90 nop
[hjl@gnu-cfl-2 ldBugDemo0]$ ./nm a.out
0000000000402000 B __bss_start
0000000000402000 B _edata
0000000000402008 B _end
0000000000401000 T getaddr1
U _start
0000000000402000 B var
[hjl@gnu-cfl-2 ldBugDemo0]$
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