diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-11-20 11:29:39 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2022-11-20 11:29:39 -0300 |
| commit | b3c39b1a96a67a7e246d562f44d04ce6f9ef878f (patch) | |
| tree | 6874debfde448db313bd7c53c3aca59687038c1f /arch/s390/include/asm/processor.h | |
| parent | 63a3bf5e8d9e79ce456c8f73d4395a5a51d841b1 (diff) | |
| parent | 77c51ba552a1c4f73228766e43ae37c4101b3758 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf/core
To pick up fixes and check if libraries used that comes from other trees
continue to work with tools/perf, such as tools/lib/bpf.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/s390/include/asm/processor.h')
| -rw-r--r-- | arch/s390/include/asm/processor.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 87be3e855bf7..c907f747d2a0 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -199,7 +199,16 @@ unsigned long __get_wchan(struct task_struct *p); /* Has task runtime instrumentation enabled ? */ #define is_ri_task(tsk) (!!(tsk)->thread.ri_cb) -register unsigned long current_stack_pointer asm("r15"); +/* avoid using global register due to gcc bug in versions < 8.4 */ +#define current_stack_pointer (__current_stack_pointer()) + +static __always_inline unsigned long __current_stack_pointer(void) +{ + unsigned long sp; + + asm volatile("lgr %0,15" : "=d" (sp)); + return sp; +} static __always_inline unsigned short stap(void) { |