support PTRACE_GETSIGINFO and PTRACE_SETSIGINFO

refs #422
2015-03-03 09:54:57 +09:00
parent 1d2f5d9893
commit 8caeba7cba
4 changed files with 96 additions and 6 deletions
--- a/arch/x86/kernel/syscall.c
+++ b/arch/x86/kernel/syscall.c
@ -506,7 +506,16 @@ do_signal(unsigned long rc, void *regs0, struct process *proc, struct sig_pendin
 		int	coredumped = 0;
 		siginfo_t info;

-		kfree(pending);
+		if(ptraceflag){
+			if(proc->ptrace_recvsig)
+				kfree(proc->ptrace_recvsig);
+			proc->ptrace_recvsig = pending;
+			if(proc->ptrace_sendsig)
+				kfree(proc->ptrace_sendsig);
+			proc->ptrace_sendsig = NULL;
+		}
+		else
+			kfree(pending);
 		ihk_mc_spinlock_unlock(&proc->sighandler->lock, irqstate);
 		switch (sig) {
 		case SIGSTOP: