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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:10:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-21 11:10:41 -0700 |
| commit | ac3ee84c604502240122c47b52f0542ec8774f15 (patch) | |
| tree | fa74b50e310af6cef3298a052514b2d42b260d6b /kernel | |
| parent | 90b9a32d8f441369b2f97a765d2d957b531eb653 (diff) | |
| parent | 4fe1da4ebc18c4c42fa56c228447f68033fce5f0 (diff) | |
| download | linux-ac3ee84c604502240122c47b52f0542ec8774f15.tar.bz2 | |
Merge branch 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb
* 'dbg-early-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb:
echi-dbgp: Add kernel debugger support for the usb debug port
earlyprintk,vga,kdb: Fix \b and \r for earlyprintk=vga with kdb
kgdboc: Add ekgdboc for early use of the kernel debugger
x86,early dr regs,kgdb: Allow kernel debugger early dr register access
x86,kgdb: Implement early hardware breakpoint debugging
x86, kgdb, init: Add early and late debug states
x86, kgdb: early trap init for early debug
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/debug/debug_core.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c index 64b5588c9638..5cb7cd1de10c 100644 --- a/kernel/debug/debug_core.c +++ b/kernel/debug/debug_core.c @@ -78,6 +78,8 @@ static DEFINE_SPINLOCK(kgdb_registration_lock); static int kgdb_con_registered; /* determine if kgdb console output should be used */ static int kgdb_use_con; +/* Flag for alternate operations for early debugging */ +bool dbg_is_early = true; /* Next cpu to become the master debug core */ int dbg_switch_cpu; @@ -777,11 +779,25 @@ static struct notifier_block kgdb_panic_event_nb = { .priority = INT_MAX, }; +void __weak kgdb_arch_late(void) +{ +} + +void __init dbg_late_init(void) +{ + dbg_is_early = false; + if (kgdb_io_module_registered) + kgdb_arch_late(); + kdb_init(KDB_INIT_FULL); +} + static void kgdb_register_callbacks(void) { if (!kgdb_io_module_registered) { kgdb_io_module_registered = 1; kgdb_arch_init(); + if (!dbg_is_early) + kgdb_arch_late(); atomic_notifier_chain_register(&panic_notifier_list, &kgdb_panic_event_nb); #ifdef CONFIG_MAGIC_SYSRQ |