https://sourceware.org/bugzilla/show_bug.cgi?id=23591
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
CC| |hjl.tools at gmail dot com
Version|unspecified |2.32 (HEAD)
Target Milestone|--- |2.32
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-cfl-1 pr23591]$ cat foo.S
.section __sancov_cntrs,"aG",%progbits,foo1,comdat
.long 0
.section .text,"axG",%progbits,foo1,comdat
.globl foo1
.type foo1, @function
foo1:
.long 0
.section __sancov_cntrs,"aG",%progbits,foo2,comdat
.long 1
.section .text,"axG",%progbits,foo2,comdat
.globl foo2
.type foo2, @function
foo2:
.long 1
[hjl@gnu-cfl-1 pr23591]$ cat foo-auto.S
.section .text,"axG",%progbits,foo1,comdat
.globl foo1
.type foo1, @function
foo1:
.byte 0
[hjl@gnu-cfl-1 pr23591]$ cat x.c
extern int __start___sancov_cntrs;
int
bar (void)
{
int* ap = &__start___sancov_cntrs;
return ap[0];
}
[hjl@gnu-cfl-1 pr23591]$ cat y.S
.hidden __start___sancov_cntrs
[hjl@gnu-cfl-1 pr23591]$ make
gcc -B../ -fPIC -O2 -g -c -o x.o x.c
gcc -B../ -fPIC -O2 -g -c -o y.o y.S
gcc -B../ -fPIC -O2 -g -c -o foo-auto.o foo-auto.S
gcc -B../ -fPIC -O2 -g -c -o foo.o foo.S
./ld -shared -o x.so x.o y.o foo-auto.o foo.o
./ld: x.o: in function `bar':
/export/home/hjl/bugs/binutils/pr23591/x.c:7: undefined reference to
`__start___sancov_cntrs'
make: *** [Makefile:12: x.so] Error 1
[hjl@gnu-cfl-1 pr23591]$ make LD=ld.gold
ld.gold -shared -o x.so x.o y.o foo-auto.o foo.o
[hjl@gnu-cfl-1 pr23591]$
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