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| author |   Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-06-24 22:41:09 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2006-06-24 22:41:09 +0100 |
| commit | ca195cfec9fff622a61b1b72534e73360747f735 (patch) | |
| tree | a98ce000e4ad01909155cad73e1ce5d1ff150117 /arch/arm | |
| parent | [ARM] Gather common sigframe saving code into setup_sigframe() (diff) | |
| download | linux-dev-ca195cfec9fff622a61b1b72534e73360747f735.tar.xz linux-dev-ca195cfec9fff622a61b1b72534e73360747f735.zip | |
[ARM] Add identifying number for non-rt sigframe
GDB couldn't reliably tell the difference between the old and new
non-rt sigframes, so provide it with a number at the beginning which
will never appear in the old sigframe, and hence provide gdb with a
reliable way to tell the two apart.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/kernel/signal.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 962851144099..c0ba8afee42f 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -470,6 +470,11 @@ setup_frame(int usig, struct k_sigaction *ka, sigset_t *set, struct pt_regs *reg if (!frame) return 1; + /* + * Set uc.uc_flags to a value which sc.trap_no would never have. + */ + __put_user_error(0x5ac3c35a, &frame->uc.uc_flags, err); + err |= setup_sigframe(frame, regs, set); if (err == 0) err = setup_return(regs, ka, frame->retcode, frame, usig); |