Re: [PATCH 1/2] testsuite: New effective-target sleep

> From: Mike Stump <[email protected]>
> Date: Thu, 23 Apr 2026 19:23:27 -0700

> On Apr 23, 2026, at 6:55 PM, Hans-Peter Nilsson <[email protected]> wrote:
> > 
> > See also PR libfortran/125005.  Ok for trunk and gcc-16?
> 
> Ok.
> 
> > libgfortran calls sleep, which is not available on all targets.
> > 
> > gcc:
> > 	* doc/sourcebuild.texi (Effective-Target Keywords): Document 'sleep'.
> > 
> > gcc/testsuite:
> > 	* lib/target-supports.exp (check_effective_target_sleep): New.
> 

Thanks!

Though after posting, I noticed that version had a placement
typo: I put the "sleep" entry right after "alarm", before
"c" (it's kind-of related to alarm).  I moved it to a
"better" position regarding alphabetization as per below as
obvious: committed.

The list has some stray entries or non-linear sequences, but
at least I didn't introduce any more out-of-order terms.

Tested for cris-elf with the-other-patch (awaiting review)
and sanity-checked on host x86-linux and viewed the
resulting gccint.info.

brgds, H-P

-- >8 --
From: Hans-Peter Nilsson <[email protected]>
Subject: [PATCH 1/2] testsuite: New effective-target sleep

libgfortran calls sleep, which is not available on all targets.

gcc:
	* doc/sourcebuild.texi (Effective-Target Keywords): Document 'sleep'.

gcc/testsuite:
	* lib/target-supports.exp (check_effective_target_sleep): New.
---
 gcc/doc/sourcebuild.texi              |  3 +++
 gcc/testsuite/lib/target-supports.exp | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 3bccb1384d9f..0bfcb96814d8 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -2936,6 +2936,9 @@ Target can compile using @code{pthread.h} with no errors or warnings.
 @item pthread_h
 Target has @code{pthread.h}.
 
+@item sleep
+Target supports @code{sleep}.
+
 @item sockets
 Target can compile using @code{sys/socket.h} with no errors or warnings.
 
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index e7165e2e1b8c..bf00572e2bc6 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -14823,6 +14823,17 @@ proc check_effective_target_alarm { } {
     }]
 }
 
+# Return true if sleep is supported on the target.
+
+proc check_effective_target_sleep { } {
+    return [check_no_compiler_messages sleep executable {
+	#include <unistd.h>
+	int main (void) {
+	  sleep (1);
+	}
+    }]
+}
+
 # Return true if a speculation barrier is defined on the target.
 proc check_effective_target_speculation_barrier_defined { } {
     return [check_no_compiler_messages speculation_barrier_defined assembly {
-- 
2.30.2