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| author | David S. Miller <davem@davemloft.net> | 2010-01-04 15:33:22 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-04 15:33:22 -0800 |
| commit | 5958eed76ccc8c361f872829bdc4b8c6dc9cd379 (patch) | |
| tree | 8f8dfcced082db674b0ae3ca3af9fdb6dde59dae /arch/x86/kernel/kgdb.c | |
| parent | c7c17c2779075e675cb3c7fe2ecde67e226771fb (diff) | |
| parent | c5974b835a909ff15c3b7e6cf6789b5eb919f419 (diff) | |
| download | linux-5958eed76ccc8c361f872829bdc4b8c6dc9cd379.tar.gz linux-5958eed76ccc8c361f872829bdc4b8c6dc9cd379.tar.bz2 linux-5958eed76ccc8c361f872829bdc4b8c6dc9cd379.zip | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Diffstat (limited to 'arch/x86/kernel/kgdb.c')
| -rw-r--r-- | arch/x86/kernel/kgdb.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 20a5b3689463..dd74fe7273b1 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -86,9 +86,15 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) gdb_regs[GDB_DS] = regs->ds; gdb_regs[GDB_ES] = regs->es; gdb_regs[GDB_CS] = regs->cs; - gdb_regs[GDB_SS] = __KERNEL_DS; gdb_regs[GDB_FS] = 0xFFFF; gdb_regs[GDB_GS] = 0xFFFF; + if (user_mode_vm(regs)) { + gdb_regs[GDB_SS] = regs->ss; + gdb_regs[GDB_SP] = regs->sp; + } else { + gdb_regs[GDB_SS] = __KERNEL_DS; + gdb_regs[GDB_SP] = kernel_stack_pointer(regs); + } #else gdb_regs[GDB_R8] = regs->r8; gdb_regs[GDB_R9] = regs->r9; @@ -101,8 +107,8 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) gdb_regs32[GDB_PS] = regs->flags; gdb_regs32[GDB_CS] = regs->cs; gdb_regs32[GDB_SS] = regs->ss; -#endif gdb_regs[GDB_SP] = kernel_stack_pointer(regs); +#endif } /** @@ -220,8 +226,7 @@ static void kgdb_correct_hw_break(void) dr7 |= ((breakinfo[breakno].len << 2) | breakinfo[breakno].type) << ((breakno << 2) + 16); - if (breakno >= 0 && breakno <= 3) - set_debugreg(breakinfo[breakno].addr, breakno); + set_debugreg(breakinfo[breakno].addr, breakno); } else { if ((dr7 & breakbit) && !breakinfo[breakno].enabled) { @@ -395,7 +400,6 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, /* set the trace bit if we're stepping */ if (remcomInBuffer[0] == 's') { linux_regs->flags |= X86_EFLAGS_TF; - kgdb_single_step = 1; atomic_set(&kgdb_cpu_doing_single_step, raw_smp_processor_id()); } |