diff options
Diffstat (limited to 'kernel/debug')
| -rw-r--r-- | kernel/debug/debug_core.h | 2 | ||||
| -rw-r--r-- | kernel/debug/gdbstub.c | 3 | ||||
| -rw-r--r-- | kernel/debug/kdb/kdb_debugger.c | 24 |
3 files changed, 23 insertions, 6 deletions
diff --git a/kernel/debug/debug_core.h b/kernel/debug/debug_core.h index 3494c28a7e7a..2235967e78b0 100644 --- a/kernel/debug/debug_core.h +++ b/kernel/debug/debug_core.h @@ -72,6 +72,8 @@ extern int dbg_kdb_mode; #ifdef CONFIG_KGDB_KDB extern int kdb_stub(struct kgdb_state *ks); extern int kdb_parse(const char *cmdstr); +extern int kdb_common_init_state(struct kgdb_state *ks); +extern int kdb_common_deinit_state(void); #else /* ! CONFIG_KGDB_KDB */ static inline int kdb_stub(struct kgdb_state *ks) { diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c index ce615e064482..ea5e3edb6915 100644 --- a/kernel/debug/gdbstub.c +++ b/kernel/debug/gdbstub.c @@ -782,7 +782,10 @@ static void gdb_cmd_query(struct kgdb_state *ks) len = len / 2; remcom_out_buffer[len++] = 0; + kdb_common_init_state(ks); kdb_parse(remcom_out_buffer); + kdb_common_deinit_state(); + strcpy(remcom_out_buffer, "OK"); } break; diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c index be7b33b73d30..d04a6ce2d3b7 100644 --- a/kernel/debug/kdb/kdb_debugger.c +++ b/kernel/debug/kdb/kdb_debugger.c @@ -34,6 +34,22 @@ EXPORT_SYMBOL_GPL(kdb_poll_idx); static struct kgdb_state *kdb_ks; +int kdb_common_init_state(struct kgdb_state *ks) +{ + kdb_initial_cpu = atomic_read(&kgdb_active); + kdb_current_task = kgdb_info[ks->cpu].task; + kdb_current_regs = kgdb_info[ks->cpu].debuggerinfo; + return 0; +} + +int kdb_common_deinit_state(void) +{ + kdb_initial_cpu = -1; + kdb_current_task = NULL; + kdb_current_regs = NULL; + return 0; +} + int kdb_stub(struct kgdb_state *ks) { int error = 0; @@ -94,9 +110,7 @@ int kdb_stub(struct kgdb_state *ks) } /* Set initial kdb state variables */ KDB_STATE_CLEAR(KGDB_TRANS); - kdb_initial_cpu = atomic_read(&kgdb_active); - kdb_current_task = kgdb_info[ks->cpu].task; - kdb_current_regs = kgdb_info[ks->cpu].debuggerinfo; + kdb_common_init_state(ks); /* Remove any breakpoints as needed by kdb and clear single step */ kdb_bp_remove(); KDB_STATE_CLEAR(DOING_SS); @@ -125,9 +139,7 @@ int kdb_stub(struct kgdb_state *ks) * Upon exit from the kdb main loop setup break points and restart * the system based on the requested continue state */ - kdb_initial_cpu = -1; - kdb_current_task = NULL; - kdb_current_regs = NULL; + kdb_common_deinit_state(); KDB_STATE_CLEAR(PAGER); kdbnearsym_cleanup(); if (error == KDB_CMD_KGDB) { |