diff options
Diffstat (limited to 'arch/mips/kernel/gdb-stub.c')
| -rw-r--r-- | arch/mips/kernel/gdb-stub.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/arch/mips/kernel/gdb-stub.c b/arch/mips/kernel/gdb-stub.c index d3fd1ab14274..96d18c43dca0 100644 --- a/arch/mips/kernel/gdb-stub.c +++ b/arch/mips/kernel/gdb-stub.c @@ -176,8 +176,10 @@ int kgdb_enabled; /* * spin locks for smp case */ -static spinlock_t kgdb_lock = SPIN_LOCK_UNLOCKED; -static spinlock_t kgdb_cpulock[NR_CPUS] = { [0 ... NR_CPUS-1] = SPIN_LOCK_UNLOCKED}; +static DEFINE_SPINLOCK(kgdb_lock); +static raw_spinlock_t kgdb_cpulock[NR_CPUS] = { + [0 ... NR_CPUS-1] = __RAW_SPIN_LOCK_UNLOCKED; +}; /* * BUFMAX defines the maximum number of characters in inbound/outbound buffers @@ -637,29 +639,32 @@ static struct gdb_bp_save async_bp; * and only one can be active at a time. */ extern spinlock_t smp_call_lock; + void set_async_breakpoint(unsigned long *epc) { /* skip breaking into userland */ if ((*epc & 0x80000000) == 0) return; +#ifdef CONFIG_SMP /* avoid deadlock if someone is make IPC */ if (spin_is_locked(&smp_call_lock)) return; +#endif async_bp.addr = *epc; *epc = (unsigned long)async_breakpoint; } -void kgdb_wait(void *arg) +static void kgdb_wait(void *arg) { unsigned flags; int cpu = smp_processor_id(); local_irq_save(flags); - spin_lock(&kgdb_cpulock[cpu]); - spin_unlock(&kgdb_cpulock[cpu]); + __raw_spin_lock(&kgdb_cpulock[cpu]); + __raw_spin_unlock(&kgdb_cpulock[cpu]); local_irq_restore(flags); } @@ -707,7 +712,7 @@ void handle_exception (struct gdb_regs *regs) * acquire the CPU spinlocks */ for (i = num_online_cpus()-1; i >= 0; i--) - if (spin_trylock(&kgdb_cpulock[i]) == 0) + if (__raw_spin_trylock(&kgdb_cpulock[i]) == 0) panic("kgdb: couldn't get cpulock %d\n", i); /* @@ -982,7 +987,7 @@ finish_kgdb: exit_kgdb_exception: /* release locks so other CPUs can go */ for (i = num_online_cpus()-1; i >= 0; i--) - spin_unlock(&kgdb_cpulock[i]); + __raw_spin_unlock(&kgdb_cpulock[i]); spin_unlock(&kgdb_lock); __flush_cache_all(); @@ -1036,12 +1041,12 @@ void adel(void) * malloc is needed by gdb client in "call func()", even a private one * will make gdb happy */ -static void *malloc(size_t size) +static void * __attribute_used__ malloc(size_t size) { return kmalloc(size, GFP_ATOMIC); } -static void free(void *where) +static void __attribute_used__ free (void *where) { kfree(where); } |