diff options
| author | Venkataramanan Kumar <venkataramanan.kumar@linaro.org> | 2014-04-08 14:11:44 +0100 |
|---|---|---|
| committer | Will Newton <will.newton@linaro.org> | 2014-04-30 10:51:43 +0100 |
| commit | b89aa87f042125b9cc4b59a0e9380231823cfa4d (patch) | |
| tree | d08dc0a07fddacb634f9d9feb3871bb08a4005e0 | |
| parent | 46ee09a64ba215a8e35e39f3dd978f28267b0920 (diff) | |
aarch64: Add setjmp and longjmp SystemTap probes
Add setjmp, longjmp and longjmp_target SystemTap probes.
ChangeLog:
2014-04-22 Will Newton <will.newton@linaro.org>
Venkataramanan Kumar <venkataramanan.kumar@linaro.org>
* sysdeps/aarch64/__longjmp.S: Include stap-probe.h.
(__longjmp): Add longjmp and longjmp_target SystemTap
probes.
* sysdeps/aarch64/setjmp.S: Include stap-probe.h.
(__sigsetjmp): Add setjmp SystemTap probe.
| -rw-r--r-- | libc/ports/ChangeLog.aarch64.linaro | 9 | ||||
| -rw-r--r-- | libc/ports/sysdeps/aarch64/__longjmp.S | 10 | ||||
| -rw-r--r-- | libc/ports/sysdeps/aarch64/setjmp.S | 5 |
3 files changed, 24 insertions, 0 deletions
diff --git a/libc/ports/ChangeLog.aarch64.linaro b/libc/ports/ChangeLog.aarch64.linaro index be992403a..6e7504574 100644 --- a/libc/ports/ChangeLog.aarch64.linaro +++ b/libc/ports/ChangeLog.aarch64.linaro @@ -1,3 +1,12 @@ +2014-04-22 Will Newton <will.newton@linaro.org> + Venkataramanan Kumar <venkataramanan.kumar@linaro.org> + + * sysdeps/aarch64/__longjmp.S: Include stap-probe.h. + (__longjmp): Add longjmp and longjmp_target SystemTap + probes. + * sysdeps/aarch64/setjmp.S: Include stap-probe.h. + (__sigsetjmp): Add setjmp SystemTap probe. + 2014-04-17 Will Newton <will.newton@linaro.org> [BZ #16629] diff --git a/libc/ports/sysdeps/aarch64/__longjmp.S b/libc/ports/sysdeps/aarch64/__longjmp.S index 2d38bbf6a..1bb7be368 100644 --- a/libc/ports/sysdeps/aarch64/__longjmp.S +++ b/libc/ports/sysdeps/aarch64/__longjmp.S @@ -18,6 +18,7 @@ #include <sysdep.h> #include <jmpbuf-offsets.h> +#include <stap-probe.h> /* __longjmp(jmpbuf, val) */ @@ -56,6 +57,10 @@ ENTRY (__longjmp) #else ldp x29, x30, [x0, #JB_X29<<3] #endif + /* longjmp probe takes 3 arguments, address of jump buffer as + first argument (8@x0), return value as second argument (-4@x1), + and target address (8@x30), respectively. */ + LIBC_PROBE (longjmp, 3, 8@x0, -4@x1, 8@x30) ldp d8, d9, [x0, #JB_D8<<3] ldp d10, d11, [x0, #JB_D10<<3] ldp d12, d13, [x0, #JB_D12<<3] @@ -98,6 +103,11 @@ ENTRY (__longjmp) ldr x5, [x0, #JB_SP<<3] #endif mov sp, x5 + + /* longjmp_target probe takes 3 arguments, address of jump buffer + as first argument (8@x0), return value as second argument (-4@x1), + and target address (8@x30), respectively. */ + LIBC_PROBE (longjmp_target, 3, 8@x0, -4@x1, 8@x30) cmp x1, #0 mov x0, #1 csel x0, x1, x0, ne diff --git a/libc/ports/sysdeps/aarch64/setjmp.S b/libc/ports/sysdeps/aarch64/setjmp.S index 5822abd87..fd3931992 100644 --- a/libc/ports/sysdeps/aarch64/setjmp.S +++ b/libc/ports/sysdeps/aarch64/setjmp.S @@ -18,6 +18,7 @@ #include <sysdep.h> #include <jmpbuf-offsets.h> +#include <stap-probe.h> /* Keep traditional entry points in with sigsetjmp(). */ ENTRY (setjmp) @@ -46,6 +47,10 @@ ENTRY (__sigsetjmp) #else stp x29, x30, [x0, #JB_X29<<3] #endif + /* setjmp probe takes 3 arguments, address of jump buffer + first argument (8@x0), return value second argument (-4@x1), + and target address (8@x30), respectively. */ + LIBC_PROBE (setjmp, 3, 8@x0, -4@x1, 8@x30) stp d8, d9, [x0, #JB_D8<<3] stp d10, d11, [x0, #JB_D10<<3] stp d12, d13, [x0, #JB_D12<<3] |