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native: irq_cpu: Make IRQ enabling/disabling safe

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This commit is contained in:
Benoît Canet 2015-07-06 20:47:53 +02:00
parent 45819459ba
commit a035d27414
1 changed files with 7 additions and 2 deletions
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9
cpu/native/irq_cpu.c
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@ -180,12 +180,17 @@ unsigned enableIRQ(void)
_native_syscall_enter();
DEBUG("enableIRQ()\n");
/* Mark the IRQ as enabled first since sigprocmask could call the handler
* before returning to userspace.
*/
prev_state = native_interrupts_enabled;
native_interrupts_enabled = 1;
if (sigprocmask(SIG_SETMASK, &_native_sig_set, NULL) == -1) {
err(EXIT_FAILURE, "enableIRQ: sigprocmask");
}
prev_state = native_interrupts_enabled;
native_interrupts_enabled = 1;
_native_syscall_leave();
DEBUG("enableIRQ(): return\n");