int err_code;
int cpu;
int pass_exception;
- long threadid;
+ unsigned long threadid;
long kgdb_usethreadid;
struct pt_regs *linux_regs;
};
* the other CPUs might interfere with your debugging context, so
* use this with care:
*/
-int kgdb_do_roundup = 1;
+static int kgdb_do_roundup = 1;
static int __init opt_nokgdbroundup(char *str)
{
* While we find nice hex chars, build a long_val.
* Return number of chars processed.
*/
-int kgdb_hex2long(char **ptr, long *long_val)
+int kgdb_hex2long(char **ptr, unsigned long *long_val)
{
int hex_val;
int num = 0;
smp_wmb();
atomic_set(&cpu_in_kgdb[cpu], 1);
- /*
- * The primary CPU must be active to enter here, but this is
- * guard in case the primary CPU had not been selected if
- * this was an entry via nmi.
- */
- while (atomic_read(&kgdb_active) == -1)
- cpu_relax();
-
- /* Wait till primary CPU goes completely into the debugger. */
- while (!atomic_read(&cpu_in_kgdb[atomic_read(&kgdb_active)]))
- cpu_relax();
-
/* Wait till primary CPU is done with debugging */
while (atomic_read(&passive_cpu_wait[cpu]))
cpu_relax();
if (current->mm && current->mm->mmap_cache) {
flush_cache_range(current->mm->mmap_cache,
addr, addr + BREAK_INSTR_SIZE);
- } else {
- flush_icache_range(addr, addr + BREAK_INSTR_SIZE);
}
+ /* Force flush instruction cache if it was outside the mm */
+ flush_icache_range(addr, addr + BREAK_INSTR_SIZE);
}
/*
return 0;
}
-int remove_all_break(void)
+static int remove_all_break(void)
{
unsigned long addr;
int error;
atomic_set(&passive_cpu_wait[i], 1);
}
-#ifdef CONFIG_SMP
- /* Signal the other CPUs to enter kgdb_wait() */
- if ((!kgdb_single_step || !kgdb_contthread) && kgdb_do_roundup)
- kgdb_roundup_cpus(flags);
-#endif
-
/*
* spin_lock code is good enough as a barrier so we don't
* need one here:
*/
atomic_set(&cpu_in_kgdb[ks->cpu], 1);
+#ifdef CONFIG_SMP
+ /* Signal the other CPUs to enter kgdb_wait() */
+ if ((!kgdb_single_step || !kgdb_contthread) && kgdb_do_roundup)
+ kgdb_roundup_cpus(flags);
+#endif
+
/*
* Wait for the other CPUs to be notified and be waiting for us:
*/
{
#ifdef CONFIG_SMP
if (!atomic_read(&cpu_in_kgdb[cpu]) &&
- atomic_read(&kgdb_active) != cpu) {
+ atomic_read(&kgdb_active) != cpu &&
+ atomic_read(&cpu_in_kgdb[atomic_read(&kgdb_active)])) {
kgdb_wait((struct pt_regs *)regs);
return 0;
}