diff options
| -rw-r--r-- | arch/sh/kernel/kgdb_stub.c | 45 | ||||
| -rw-r--r-- | include/asm-sh/kgdb.h | 12 |
2 files changed, 5 insertions, 52 deletions
diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c index edd1ec214e6d..27f64b92aff0 100644 --- a/arch/sh/kernel/kgdb_stub.c +++ b/arch/sh/kernel/kgdb_stub.c @@ -150,13 +150,6 @@ struct kgdb_regs trap_registers; char kgdb_in_gdb_mode; char in_nmi; /* Set during NMI to prevent reentry */ int kgdb_nofault; /* Boolean to ignore bus errs (i.e. in GDB) */ -int kgdb_enabled = 1; /* Default to enabled, cmdline can disable */ - -/* Exposed for user access */ -struct task_struct *kgdb_current; -unsigned int kgdb_g_imask; -int kgdb_trapa_val; -int kgdb_excode; /* Default values for SCI (can override via kernel args in setup.c) */ #ifndef CONFIG_KGDB_DEFPORT @@ -640,7 +633,6 @@ static void do_single_step(void) /* Flush and return */ kgdb_flush_icache_range((long) addr, (long) addr + 2); - return; } /* Undo a single step */ @@ -815,14 +807,10 @@ static void set_regs_msg(void) /* * Bring up the ports.. */ -static int kgdb_serial_setup(void) +static int __init kgdb_serial_setup(void) { - extern int kgdb_console_setup(struct console *co, char *options); struct console dummy; - - kgdb_console_setup(&dummy, 0); - - return 0; + return kgdb_console_setup(&dummy, 0); } #else #define kgdb_serial_setup() 0 @@ -833,22 +821,6 @@ static void kgdb_command_loop(const int excep_code, const int trapa_value) { int sigval; - if (excep_code == NMI_VEC) { -#ifndef CONFIG_KGDB_NMI - printk(KERN_NOTICE "KGDB: Ignoring unexpected NMI?\n"); - return; -#else /* CONFIG_KGDB_NMI */ - if (!kgdb_enabled) { - kgdb_enabled = 1; - kgdb_init(); - } -#endif /* CONFIG_KGDB_NMI */ - } - - /* Ignore if we're disabled */ - if (!kgdb_enabled) - return; - /* Enter GDB mode (e.g. after detach) */ if (!kgdb_in_gdb_mode) { /* Do serial setup, notify user, issue preemptive ack */ @@ -959,18 +931,10 @@ static void handle_exception(struct pt_regs *regs) /* Get excode for command loop call, user access */ asm("stc r2_bank, %0":"=r"(excep_code)); - kgdb_excode = excep_code; - - /* Other interesting environment items for reference */ - asm("stc r6_bank, %0":"=r"(kgdb_g_imask)); - kgdb_current = current; - kgdb_trapa_val = trapa_value; /* Act on the exception */ kgdb_command_loop(excep_code, trapa_value); - kgdb_current = NULL; - /* Copy back the (maybe modified) registers */ for (count = 0; count < 16; count++) regs->regs[count] = trap_registers.regs[count]; @@ -994,11 +958,8 @@ asmlinkage void kgdb_handle_exception(unsigned long r4, unsigned long r5, } /* Initialise the KGDB data structures and serial configuration */ -int kgdb_init(void) +int __init kgdb_init(void) { - if (!kgdb_enabled) - return 1; - in_nmi = 0; kgdb_nofault = 0; stepped_opcode = 0; diff --git a/include/asm-sh/kgdb.h b/include/asm-sh/kgdb.h index 74bd0953e5ce..5334e86ccad6 100644 --- a/include/asm-sh/kgdb.h +++ b/include/asm-sh/kgdb.h @@ -19,8 +19,6 @@ #include <asm/ptrace.h> #include <asm/cacheflush.h> -struct console; - /* Same as pt_regs but has vbr in place of syscall_nr */ struct kgdb_regs { unsigned long regs[16]; @@ -35,10 +33,7 @@ struct kgdb_regs { /* State info */ extern char kgdb_in_gdb_mode; -extern int kgdb_done_init; -extern int kgdb_enabled; extern int kgdb_nofault; /* Ignore bus errors (in gdb mem access) */ -extern int kgdb_halt; /* Execute initial breakpoint at startup */ extern char in_nmi; /* Debounce flag to prevent NMI reentry*/ /* SCI */ @@ -59,6 +54,7 @@ extern kgdb_debug_hook_t *kgdb_debug_hook; extern kgdb_bus_error_hook_t *kgdb_bus_err_hook; /* Console */ +struct console; void kgdb_console_write(struct console *co, const char *s, unsigned count); extern int kgdb_console_setup(struct console *, char *); @@ -69,11 +65,7 @@ extern void longjmp(jmp_buf __jmpb, int __retval); extern int setjmp(jmp_buf __jmpb); /* Forced breakpoint */ -#define breakpoint() \ -do { \ - if (kgdb_enabled) \ - __asm__ __volatile__("trapa #0x3c"); \ -} while (0) +#define breakpoint() __asm__ __volatile__("trapa #0x3c") /* KGDB should be able to flush all kernel text space */ #if defined(CONFIG_CPU_SH4) |