diff options
Diffstat (limited to 'includes/sys/sdt.h')
| -rw-r--r-- | includes/sys/sdt.h | 36 |
1 files changed, 32 insertions, 4 deletions
diff --git a/includes/sys/sdt.h b/includes/sys/sdt.h index ddcc74e5..01308474 100644 --- a/includes/sys/sdt.h +++ b/includes/sys/sdt.h @@ -42,6 +42,13 @@ #define STAP_PROBE_DATA(probe, guard, arg) \ STAP_PROBE_DATA_(#probe,guard,arg) +#if defined STAP_HAS_SEMAPHORES && defined EXPERIMENTAL_UTRACE_SDT +#define STAP_SEMAPHORE(probe) \ + if ( probe ## _semaphore ) +#else +#define STAP_SEMAPHORE(probe) ; +#endif + #if ! (defined EXPERIMENTAL_UTRACE_SDT || defined EXPERIMENTAL_KPROBE_SDT) /* These baroque macros are used to create a unique label. */ @@ -81,6 +88,7 @@ do { \ } while (0) #define STAP_PROBE1_(probe,label,parm1) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ STAP_UNINLINE; \ @@ -90,6 +98,7 @@ do { \ } while (0) #define STAP_PROBE2_(probe,label,parm1,parm2) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -100,6 +109,7 @@ do { \ } while (0) #define STAP_PROBE3_(probe,label,parm1,parm2,parm3) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -111,6 +121,7 @@ do { \ } while (0) #define STAP_PROBE4_(probe,label,parm1,parm2,parm3,parm4) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -123,6 +134,7 @@ do { \ } while (0) #define STAP_PROBE5_(probe,label,parm1,parm2,parm3,parm4,parm5) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -136,6 +148,7 @@ do { \ } while (0) #define STAP_PROBE6_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -150,6 +163,7 @@ do { \ } while (0) #define STAP_PROBE7_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -165,6 +179,7 @@ do { \ } while (0) #define STAP_PROBE8_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -181,6 +196,7 @@ do { \ } while (0) #define STAP_PROBE9_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -198,6 +214,7 @@ do { \ } while (0) #define STAP_PROBE10_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10) \ +STAP_SEMAPHORE(probe) \ do { \ volatile __typeof__((parm1)) arg1 = parm1; \ volatile __typeof__((parm2)) arg2 = parm2; \ @@ -232,18 +249,21 @@ extern long int syscall (long int __sysno, ...) __THROW; #include <sys/syscall.h> #define STAP_PROBE_(probe) \ +STAP_SEMAPHORE(probe) \ do { \ - STAP_PROBE_DATA(probe,STAP_SYSCALL,0); \ + STAP_PROBE_DATA(probe,STAP_GUARD,0); \ syscall (STAP_SYSCALL, #probe, STAP_GUARD); \ } while (0) #define STAP_PROBE1_(probe,label,parm1) \ +STAP_SEMAPHORE(probe) \ do { \ STAP_PROBE_DATA(probe,STAP_GUARD,1); \ syscall (STAP_SYSCALL, #probe, STAP_GUARD, (size_t)parm1); \ } while (0) #define STAP_PROBE2_(probe,label,parm1,parm2) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8)));} \ @@ -253,16 +273,18 @@ do { \ } while (0) #define STAP_PROBE3_(probe,label,parm1,parm2,parm3) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ size_t arg3 __attribute__((aligned(8)));} \ stap_probe3_args = {(size_t)parm1, (size_t)parm2, (size_t)parm3}; \ STAP_PROBE_DATA(probe,STAP_GUARD,3); \ - syscall (STAP_SYSCALL, #probe, STAP_GUARD, &stap_probe3_args); \ + syscall (STAP_SYSCALL, #probe, STAP_GUARD, &stap_probe3_args); \ } while (0) #define STAP_PROBE4_(probe,label,parm1,parm2,parm3,parm4) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -270,10 +292,11 @@ do { \ size_t arg4 __attribute__((aligned(8)));} \ stap_probe4_args = {(size_t)parm1, (size_t)parm2, (size_t)parm3, (size_t)parm4}; \ STAP_PROBE_DATA(probe,STAP_GUARD,4); \ - syscall (STAP_SYSCALL, #probe, STAP_GUARD,&stap_probe4_args); \ + syscall (STAP_SYSCALL, #probe, STAP_GUARD,&stap_probe4_args); \ } while (0) #define STAP_PROBE5_(probe,label,parm1,parm2,parm3,parm4,parm5) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -287,6 +310,7 @@ do { \ } while (0) #define STAP_PROBE6_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -301,6 +325,7 @@ do { \ } while (0) #define STAP_PROBE7_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -316,6 +341,7 @@ do { \ } while (0) #define STAP_PROBE8_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -332,6 +358,7 @@ do { \ } while (0) #define STAP_PROBE9_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -349,6 +376,7 @@ do { \ } while (0) #define STAP_PROBE10_(probe,label,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10) \ +STAP_SEMAPHORE(probe) \ do { \ __extension__ struct {size_t arg1 __attribute__((aligned(8))); \ size_t arg2 __attribute__((aligned(8))); \ @@ -362,7 +390,7 @@ do { \ size_t arg10 __attribute__((aligned(8)));} \ stap_probe10_args = {(size_t)parm1, (size_t)parm2, (size_t)parm3, (size_t)parm4, \ (size_t)parm5, (size_t)parm6, (size_t)parm7, (size_t)parm8, (size_t)parm9, (size_t)parm10}; \ - STAP_PROBE_DATA(probe,STAP_GUARD,10); \ + STAP_PROBE_DATA(probe,STAP_GUARD,10); \ syscall (STAP_SYSCALL, #probe, STAP_GUARD, &stap_probe10_args); \ } while (0) |