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| author | David Howells <dhowells@redhat.com> | 2008-02-19 18:58:59 +0000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-19 15:51:36 -0800 |
| commit | aa409e028c41137a659c02d0081ba57b701e7446 (patch) | |
| tree | efb9f213a00fa9e523cfe5c6456fec3a0d65231a /arch/mn10300/kernel | |
| parent | 5efe92c68045817b97927b748f369d407c1d89ab (diff) | |
| download | op-kernel-dev-aa409e028c41137a659c02d0081ba57b701e7446.zip op-kernel-dev-aa409e028c41137a659c02d0081ba57b701e7446.tar.gz | |
MN10300: Make the kernel jump into gdbstub on a BUG
Make the kernel jump into gdbstub (if configured) on a BUG with the register
set from the BUG rather than interpolating another illegal instruction and
leaving gdbstub's idea of the process counter in unsupported_syscall() where
the original BUG was detected.
With this patch, gdbstub reports a SIGABRT to the compiler and reports the
program counter at the original BUG, allowing the execution state at the time
of the BUG to be examined with GDB.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/mn10300/kernel')
| -rw-r--r-- | arch/mn10300/kernel/traps.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index 8b9dc6d..fcb9a03 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -391,7 +391,7 @@ static asmlinkage void unsupported_syscall(struct pt_regs *regs, if (code == EXCEP_SYSCALL15 && !user_mode(regs)) { if (report_bug(regs->pc, regs) == BUG_TRAP_TYPE_BUG) { #ifdef CONFIG_GDBSTUB - __gdbstub_bug_trap(); + gdbstub_intercept(regs, code); #endif } } |
