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| author | Michal Simek <monstr@monstr.eu> | 2009-10-15 11:32:25 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2009-12-14 08:44:58 +0100 |
| commit | a01523cdcd2439b553086127be3d30ac9c3cb651 (patch) | |
| tree | 66ef137a4a495b0749b12178e5d0757b1ebd4742 /arch/microblaze/kernel/signal.c | |
| parent | microblaze: Extend cpuinfo for support write-back caches (diff) | |
| download | linux-a01523cdcd2439b553086127be3d30ac9c3cb651.tar.xz linux-a01523cdcd2439b553086127be3d30ac9c3cb651.zip | |
microblaze: Ptrace notifying from signal code
After the signal frame is set up on the userspace stack, ptrace() should
be given an opportunity to single-step into the signal handler
FRV, Blackfin, mn10300 and UM. Worth to look at that patches.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze/kernel/signal.c')
| -rw-r--r-- | arch/microblaze/kernel/signal.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/microblaze/kernel/signal.c b/arch/microblaze/kernel/signal.c index 1c80e4fc40ce..0c96ac34c316 100644 --- a/arch/microblaze/kernel/signal.c +++ b/arch/microblaze/kernel/signal.c @@ -233,6 +233,10 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, set_fs(USER_DS); + /* the tracer may want to single-step inside the handler */ + if (test_thread_flag(TIF_SINGLESTEP)) + ptrace_notify(SIGTRAP); + #ifdef DEBUG_SIG printk(KERN_INFO "SIG deliver (%s:%d): sp=%p pc=%08lx\n", current->comm, current->pid, frame, regs->pc); |