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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-09 10:34:00 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-09 10:34:00 -0700 |
| commit | 3ed43c745d2ce0c4ca15ad406285d1cc7e8ceec3 (patch) | |
| tree | 286decf836edc60ef70a0306a785ed497f7fed73 /arch/blackfin/kernel/signal.c | |
| parent | 26c5e98e88a6126adef2ddce21899e5afe823a2b (diff) | |
| parent | 45828b812ddb608ddf83eff11601f62b726d13ab (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (21 commits)
Blackfin Serial Driver: abstract away DLAB differences into header
Blackfin Serial Driver: macro away the IER differences between processors
[Blackfin] arch: remove useless IRQ_SW_INT defines
[Blackfin] arch: protect linux/usb/musb.h include until the driver gets mainlined
[Blackfin] arch: protect linux/usb/isp1362.h include until the driver gets mainlined
[Blackfin] arch: add EBIU supporting for BF54x EZKIT SMSC LAN911x/LAN921x families embedded ethernet driver
[Blackfin] arch: Set spi flash partition on bf527 as like bf548.
[Blackfin] arch: fix bug - Remove module will not free L1 memory used
[Blackfin] arch: fix wrong header name in comment
[Blackfin] arch: Fix BUG - spi flash on bf527 ezkit would fail at mount
[Blackfin] arch: add twi_lcd and twi_keypad i2c board info to bf527-ezkit
[Blackfin] arch: Add physmap partition for BF527-EZkit
[Blackfin] arch: fix gdb testing regression
[Blackfin] arch: disable single stepping when delivering a signal
[Blackfin] arch: Delete unused (copied from m68k) entries in asm-offsets.c.
[Blackfin] arch: In the double fault handler, set up the PT_RETI slot
[Blackfin] arch: Support for CPU_FREQ and NOHZ
[Blackfin] arch: Functional power management support: Add CPU and platform voltage scaling support
[Blackfin] arch: fix bug - breaking the atomic sections code.
[Blackfin] arch: Equalize include files: Add VR_CTL masks
...
Diffstat (limited to 'arch/blackfin/kernel/signal.c')
| -rw-r--r-- | arch/blackfin/kernel/signal.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c index cb9d883d493c..dbc3bbf846be 100644 --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -42,6 +42,9 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) +/* Location of the trace bit in SYSCFG. */ +#define TRACE_BITS 0x0001 + struct fdpic_func_descriptor { unsigned long text; unsigned long GOT; @@ -225,6 +228,16 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, regs->r1 = (unsigned long)(&frame->info); regs->r2 = (unsigned long)(&frame->uc); + /* + * Clear the trace flag when entering the signal handler, but + * notify any tracer that was single-stepping it. The tracer + * may want to single-step inside the handler too. + */ + if (regs->syscfg & TRACE_BITS) { + regs->syscfg &= ~TRACE_BITS; + ptrace_notify(SIGTRAP); + } + return 0; give_sigsegv: |