[glibc] signal: Avoid system signal disposition to interfere with tests

[glibc] signal: Avoid system signal disposition to interfere with tests

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=2e53eb923486704b7a0d6f3d81d1ee8ba672a56b

commit 2e53eb923486704b7a0d6f3d81d1ee8ba672a56b
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Wed Feb 14 17:33:41 2024 +0000

    signal: Avoid system signal disposition to interfere with tests
    
    Both tst-sigset2 and tst-signal1 expectes that SIGINT disposition
    is set to SIG_DFL.

Diff:
---
 signal/tst-sigset2.c          | 4 ++++
 sysdeps/pthread/tst-signal1.c | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/signal/tst-sigset2.c b/signal/tst-sigset2.c
index 4eef653f95..c1d125e4cb 100644
--- a/signal/tst-sigset2.c
+++ b/signal/tst-sigset2.c
@@ -11,6 +11,8 @@
 #include <sys/wait.h>
 #include <libc-diag.h>
 
+#include <support/xsignal.h>
+
 /* The sigset function is deprecated.  */
 DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wdeprecated-declarations");
 
@@ -148,6 +150,8 @@ returnTest3 (void)
 int
 main (int argc, char *argv[])
 {
+  xsignal (TEST_SIG, SIG_DFL);
+
   pid_t childPid;
 
   childPid = fork();
diff --git a/sysdeps/pthread/tst-signal1.c b/sysdeps/pthread/tst-signal1.c
index 1c550ef8eb..ca145eef3d 100644
--- a/sysdeps/pthread/tst-signal1.c
+++ b/sysdeps/pthread/tst-signal1.c
@@ -26,6 +26,7 @@
 #include <sys/wait.h>
 
 #include <support/xunistd.h>
+#include <support/xsignal.h>
 
 static sigset_t ss;
 static pthread_barrier_t *b;
@@ -93,6 +94,8 @@ receiver (void)
 static int
 do_test (void)
 {
+  xsignal (SIGINT, SIG_DFL);
+
   char tmp[] = "/tmp/tst-signal1-XXXXXX";
 
   int fd = mkstemp (tmp);