https://gcc.gnu.org/g:57b706d141b87c06dfbba577048a1e4903d33f70
commit r15-7152-g57b706d141b87c06dfbba577048a1e4903d33f70
Author: Torbjörn SVENSSON <torbjorn.svens...@foss.st.com>
Date: Sun Jan 19 18:33:24 2025 +0100
testsuite: Only run test if alarm is available
Most baremetal toolchains will not have an implementation for alarm and
sigaction as they are target specific.
For arm-none-eabi with newlib, function signatures are exposed, but
there is no implmentation and thus the test cases causes a undefined
symbol link error.
gcc/testsuite/ChangeLog:
* gcc.dg/pr78185.c: Remove dg-do and replace with
with dg-require-effective-target of signal and alarm.
* gcc.dg/pr116906-1.c: Likewise.
* gcc.dg/pr116906-2.c: Likewise.
* gcc.dg/vect/pr101145inf.c: Use effective-target alarm.
* gcc.dg/vect/pr101145inf_1.c: Likewise.
* lib/target-supports.exp(check_effective_target_alarm): New.
gcc/ChangeLog:
* doc/sourcebuild.texi (Effective-Target Keywords): Document
'alarm'.
Signed-off-by: Torbjörn SVENSSON <torbjorn.svens...@foss.st.com>
Diff:
---
gcc/doc/sourcebuild.texi | 3 +++
gcc/testsuite/gcc.dg/pr116906-1.c | 3 ++-
gcc/testsuite/gcc.dg/pr116906-2.c | 3 ++-
gcc/testsuite/gcc.dg/pr78185.c | 3 ++-
gcc/testsuite/gcc.dg/vect/pr101145inf.c | 1 +
gcc/testsuite/gcc.dg/vect/pr101145inf_1.c | 1 +
gcc/testsuite/lib/target-supports.exp | 27 +++++++++++++++++++++++++++
7 files changed, 38 insertions(+), 3 deletions(-)
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index b5c1b23e5271..98ede70f23c0 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2808,6 +2808,9 @@ both scalar and vector modes.
@subsubsection Environment attributes
@table @code
+@item alarm
+Target supports @code{alarm}.
+
@item c
The language for the compiler under test is C.
diff --git a/gcc/testsuite/gcc.dg/pr116906-1.c
b/gcc/testsuite/gcc.dg/pr116906-1.c
index 27b1fdae02bf..7187507a60d1 100644
--- a/gcc/testsuite/gcc.dg/pr116906-1.c
+++ b/gcc/testsuite/gcc.dg/pr116906-1.c
@@ -1,4 +1,5 @@
-/* { dg-do run { target *-*-linux* *-*-gnu* *-*-uclinux* } } */
+/* { dg-require-effective-target alarm } */
+/* { dg-require-effective-target signal } */
/* { dg-options "-O2" } */
#include <stdint.h>
diff --git a/gcc/testsuite/gcc.dg/pr116906-2.c
b/gcc/testsuite/gcc.dg/pr116906-2.c
index 3478771678ce..41a352bf8370 100644
--- a/gcc/testsuite/gcc.dg/pr116906-2.c
+++ b/gcc/testsuite/gcc.dg/pr116906-2.c
@@ -1,4 +1,5 @@
-/* { dg-do run { target *-*-linux* *-*-gnu* *-*-uclinux* } } */
+/* { dg-require-effective-target alarm } */
+/* { dg-require-effective-target signal } */
/* { dg-options "-O2 -fno-tree-ch" } */
#include <unistd.h>
diff --git a/gcc/testsuite/gcc.dg/pr78185.c b/gcc/testsuite/gcc.dg/pr78185.c
index d7781b2080fb..ada8b1b9f907 100644
--- a/gcc/testsuite/gcc.dg/pr78185.c
+++ b/gcc/testsuite/gcc.dg/pr78185.c
@@ -1,4 +1,5 @@
-/* { dg-do run { target *-*-linux* *-*-gnu* *-*-uclinux* } } */
+/* { dg-require-effective-target alarm } */
+/* { dg-require-effective-target signal } */
/* { dg-options "-O" } */
#include <unistd.h>
diff --git a/gcc/testsuite/gcc.dg/vect/pr101145inf.c
b/gcc/testsuite/gcc.dg/vect/pr101145inf.c
index aa598875aa59..70aea94b6e0b 100644
--- a/gcc/testsuite/gcc.dg/vect/pr101145inf.c
+++ b/gcc/testsuite/gcc.dg/vect/pr101145inf.c
@@ -1,3 +1,4 @@
+/* { dg-require-effective-target alarm } */
/* { dg-require-effective-target signal } */
/* { dg-additional-options "-O3" } */
#include <limits.h>
diff --git a/gcc/testsuite/gcc.dg/vect/pr101145inf_1.c
b/gcc/testsuite/gcc.dg/vect/pr101145inf_1.c
index 0465788c3cca..fe008284e1d9 100644
--- a/gcc/testsuite/gcc.dg/vect/pr101145inf_1.c
+++ b/gcc/testsuite/gcc.dg/vect/pr101145inf_1.c
@@ -1,3 +1,4 @@
+/* { dg-require-effective-target alarm } */
/* { dg-require-effective-target signal } */
/* { dg-additional-options "-O3" } */
#include <limits.h>
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index 1785a9d61500..9ad1e1965bbd 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -14271,3 +14271,30 @@ proc add_options_for_nvptx_alloca_ptx { flags } {
return $flags
}
+
+# Return true if alarm is supported on the target.
+
+proc check_effective_target_alarm { } {
+ if { ![check_effective_target_signal] } {
+ return 0
+ }
+
+ return [check_no_compiler_messages alarm executable {
+ #include <signal.h>
+ #include <stdlib.h>
+ #include <unistd.h>
+ void do_exit(int i) { exit (0); }
+ int main (void) {
+ struct sigaction s;
+ sigemptyset (&s.sa_mask);
+ s.sa_handler = exit;
+ s.sa_flags = 0;
+ sigaction (SIGALRM, &s, NULL);
+ alarm (1);
+
+ /* Infinite loop to simulate work... */
+ while (1);
+ abort ();
+ }
+ }]
+}
