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author | David S. Miller <davem@davemloft.net> | 2008-05-15 00:34:44 -0700 |
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committer | David S. Miller <davem@davemloft.net> | 2008-05-15 00:34:44 -0700 |
commit | 63fe46da9c380b3f2bbdf3765044649517cc717c (patch) | |
tree | 9478c1aca1d692b408955aea20c9cd9a37e589c0 /arch/blackfin/kernel/signal.c | |
parent | 99dd1a2b8347ac2ae802300b7862f6f7bcf17139 (diff) | |
parent | 066b2118976e6e7cc50eed39e2747c75343a23c4 (diff) | |
download | linux-63fe46da9c380b3f2bbdf3765044649517cc717c.tar.gz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/wireless/iwlwifi/iwl-4965-rs.c
drivers/net/wireless/rt2x00/rt61pci.c
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: |