diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/clock_gettime.S')
| -rw-r--r-- | arch/s390/kernel/vdso32/clock_gettime.S | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index 2d6ec3abe095..a9418bf975db 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S @@ -9,14 +9,17 @@ #include <asm/vdso.h> #include <asm/asm-offsets.h> #include <asm/unistd.h> +#include <asm/dwarf.h> .text .align 4 .globl __kernel_clock_gettime .type __kernel_clock_gettime,@function __kernel_clock_gettime: - .cfi_startproc + CFI_STARTPROC ahi %r15,-16 + CFI_DEF_CFA_OFFSET 176 + CFI_VAL_OFFSET 15, -160 basr %r5,0 0: al %r5,21f-0b(%r5) /* get &_vdso_data */ chi %r2,__CLOCK_REALTIME_COARSE @@ -69,9 +72,13 @@ __kernel_clock_gettime: st %r1,4(%r3) /* store tp->tv_nsec */ lhi %r2,0 ahi %r15,16 + CFI_DEF_CFA_OFFSET 160 + CFI_RESTORE 15 br %r14 /* CLOCK_MONOTONIC_COARSE */ + CFI_DEF_CFA_OFFSET 176 + CFI_VAL_OFFSET 15, -160 9: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ tml %r4,0x0001 /* pending update ? loop */ jnz 9b @@ -151,15 +158,21 @@ __kernel_clock_gettime: st %r1,4(%r3) /* store tp->tv_nsec */ lhi %r2,0 ahi %r15,16 + CFI_DEF_CFA_OFFSET 160 + CFI_RESTORE 15 br %r14 /* Fallback to system call */ + CFI_DEF_CFA_OFFSET 176 + CFI_VAL_OFFSET 15, -160 19: lhi %r1,__NR_clock_gettime svc 0 ahi %r15,16 + CFI_DEF_CFA_OFFSET 160 + CFI_RESTORE 15 br %r14 + CFI_ENDPROC 20: .long 1000000000 21: .long _vdso_data - 0b - .cfi_endproc .size __kernel_clock_gettime,.-__kernel_clock_gettime |