http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50644
--- Comment #16 from Markus Trippelsdorf <markus at trippelsdorf dot de>
2011-10-29 13:08:13 UTC ---
Or as one file:
% cat test.i
struct _ddebug {
const char *modname;
const char *function;
const char *filename;
const char *format;
char enabled;
}
cpumask_t;
int native_cpu_up(unsigned int cpu)
{
int err;
static struct _ddebug descriptor = {
"", __func__, "", "", 866, 0
};
if (__builtin_expect(!!(descriptor.enabled), 0))
__dynamic_pr_debug(&descriptor, "", err);
check_tsc_sync_source(cpu);
}
struct smp_ops {
int (*cpu_up)(unsigned cpu);
void (*cpu_die)(unsigned int cpu);
};
void native_cpu_die(unsigned int cpu);
struct kernel_symbol {
unsigned long value;
};
struct smp_ops smp_ops = {
.cpu_up = native_cpu_up, .cpu_die = native_cpu_die,
};
static const struct kernel_symbol
__ksymtab_smp_ops __attribute__((__used__)) = {
(unsigned long)&smp_ops
};
typedef struct {
}
atomic_t;
extern __typeof__(int) cpu_number;
static atomic_t start_count;
void check_tsc_sync_source(int cpu)
{
if (unsynchronized_tsc()) return;
else {
do {
static struct _ddebug descriptor = {
"", __func__, "", 151, 0
};
if (__builtin_expect(!!(descriptor.enabled), 0))
__dynamic_pr_debug(&descriptor, "", (( {
typeof(cpu_number) pfo_ret__;
switch (sizeof(cpu_number)) {
case 4:
asm("mov" "l ""%%""gs"":" "%P" "1"",%0" :
"=r" (pfo_ret__) : "m" (cpu_number));
}
pfo_ret__;
}
)), cpu);
} while (0);
}
atomic_set(&start_count, 0);
}
% gcc test.i -w -O2 -flto
In file included from :0:0:
test.i: In function ‘native_cpu_up’:
test.i:9:5: internal compiler error: Segmentation fault
Please submit a full bug report
