https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77957
Bug ID: 77957
Summary: [6/7 Regression] Undefined .LCTOC0 with
-fstack-protector-strong -mminimal-toc -O0 on ppc64le
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jakub at gcc dot gnu.org
Target Milestone: ---
void
foo (void)
{
unsigned long x = 0;
asm volatile ("" : : "r" (&x) : "memory");
}
int
main ()
{
foo ();
return 0;
}
fails to link on powerpc64le-linux with -fstack-protector-strong -mminimal-toc
-O0:
gcc -fstack-protector-strong -mminimal-toc -O0 -o /tmp/test{,.c}
/tmp/ccldrAkU.o: In function `foo':
test.c:(.text+0x20): undefined reference to `.LCTOC0'
collect2: error: ld returned 1 exit status
I can reproduce also with a cross-compiler, the important trigger is that
TARGET_LIBC_PROVIDES_SSP must be defined to 1. This compiled fine with 4.8,
fails with 6.2 and current trunk.
