The breakpoint entry code has moved the PC on by 4 bytes, so we must
move it back. This could be done on the host but we do it here because
monitor.S of JATG gdbserver does it.
Signed-off-by: Thomas Chou <[EMAIL PROTECTED]>
---
linux-2.6.x/arch/nios2nommu/kernel/traps.c | 8 +++++++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/linux-2.6.x/arch/nios2nommu/kernel/traps.c
b/linux-2.6.x/arch/nios2nommu/kernel/traps.c
index 6c55c04..e5471b9 100644
--- a/linux-2.6.x/arch/nios2nommu/kernel/traps.c
+++ b/linux-2.6.x/arch/nios2nommu/kernel/traps.c
@@ -182,13 +182,19 @@ asmlinkage void breakpoint_c(struct pt_regs *fp)
{
siginfo_t info;
+/* The breakpoint entry code has moved the PC on by 4 bytes, so we must */
+/* move it back. This could be done on the host but we do it here */
+/* because monitor.S of JATG gdbserver does it. */
+ fp->ea -= 4;
+
/*
printk(KERN_DEBUG "Breakpoint detected, instr=0x%08x ea=0x%08x
ra=0x%08x sp=0x%08x\n", *(u32*)((fp->ea)-4), *(u32*)(fp->ea), *(u32*)(fp->ra),
*(u32*)(fp->sp));
*/
-
+
info.si_code = TRAP_BRKPT;
info.si_signo = SIGTRAP;
info.si_errno = 0;
+ info.si_addr = (void *) fp->ea;
force_sig_info(info.si_signo, &info, current);
}
--
1.5.3.3
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