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| author | Venkataramanan Kumar <venkataramanan.kumar@linaro.org> | 2014-04-08 14:11:44 +0100 |
|---|---|---|
| committer | Will Newton <will.newton@linaro.org> | 2014-04-22 11:13:16 +0100 |
| commit | 140cc7abf7d15928b4c4a873d40a73b836685157 (patch) | |
| tree | 6702f449ecdec39b5466c37ed69a34d6c9a8c75b | |
| parent | c54e5cf7db32709b4f04a117f44f69dc5684cbf2 (diff) | |
| download | glibc-140cc7abf7d15928b4c4a873d40a73b836685157.tar.gz glibc-140cc7abf7d15928b4c4a873d40a73b836685157.tar.xz glibc-140cc7abf7d15928b4c4a873d40a73b836685157.zip | |
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-- | ChangeLog | 9 | ||||
| -rw-r--r-- | sysdeps/aarch64/__longjmp.S | 10 | ||||
| -rw-r--r-- | sysdeps/aarch64/setjmp.S | 5 |
3 files changed, 24 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index e09fdc6263..1d42c68170 100644 --- a/ChangeLog +++ b/ChangeLog @@ -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 Carlos O'Donell <carlos@redhat.com> * manual/intro.texi (Roadmap to the manual): Sort chapter listing to diff --git a/sysdeps/aarch64/__longjmp.S b/sysdeps/aarch64/__longjmp.S index 2d38bbf6a5..1bb7be3689 100644 --- a/sysdeps/aarch64/__longjmp.S +++ b/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/sysdeps/aarch64/setjmp.S b/sysdeps/aarch64/setjmp.S index 5822abd872..fd39319920 100644 --- a/sysdeps/aarch64/setjmp.S +++ b/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] |