diff options
| author |   Alan Stern <stern@rowland.harvard.edu> | 2007-07-21 17:10:42 +0200 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-21 18:37:10 -0700 |
| commit | bb1995d52b05f7e671914454d0ae57bd4170ef47 (patch) | |
| tree | 3a4924f5d24e71f4884e6598085b557d856777e8 /arch/x86_64/kernel | |
| parent | x86: PM_TRACE support (diff) | |
| download | linux-dev-bb1995d52b05f7e671914454d0ae57bd4170ef47.tar.xz linux-dev-bb1995d52b05f7e671914454d0ae57bd4170ef47.zip | |
x86: Make Alt-SysRq-p display the debug register contents
This patch (as921) adds code to the show_regs() routine in i386 and x86_64
to print the contents of the debug registers along with all the others.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86_64/kernel')
| -rw-r--r-- | arch/x86_64/kernel/process.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/process.c b/arch/x86_64/kernel/process.c index 180f4c0fcbc4..bbfc957f045f 100644 --- a/arch/x86_64/kernel/process.c +++ b/arch/x86_64/kernel/process.c @@ -306,6 +306,7 @@ early_param("idle", idle_setup); void __show_regs(struct pt_regs * regs) { unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L, fs, gs, shadowgs; + unsigned long d0, d1, d2, d3, d6, d7; unsigned int fsindex,gsindex; unsigned int ds,cs,es; @@ -350,6 +351,15 @@ void __show_regs(struct pt_regs * regs) fs,fsindex,gs,gsindex,shadowgs); printk("CS: %04x DS: %04x ES: %04x CR0: %016lx\n", cs, ds, es, cr0); printk("CR2: %016lx CR3: %016lx CR4: %016lx\n", cr2, cr3, cr4); + + get_debugreg(d0, 0); + get_debugreg(d1, 1); + get_debugreg(d2, 2); + printk("DR0: %016lx DR1: %016lx DR2: %016lx\n", d0, d1, d2); + get_debugreg(d3, 3); + get_debugreg(d6, 6); + get_debugreg(d7, 7); + printk("DR3: %016lx DR6: %016lx DR7: %016lx\n", d3, d6, d7); } void show_regs(struct pt_regs *regs) |