https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108709
Bug ID: 108709
Summary: FAIL: gcc.dg/analyzer/pipe-glibc.c
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: analyzer
Assignee: dmalcolm at gcc dot gnu.org
Reporter: nightstrike at gmail dot com
Target Milestone: ---
This test fails on Windows for lack of fork. It actually fails for not having
pipe(), also, but _pipe() does the job well enough, so that fix is a simple
#define. It is not very apparent what the test is doing, since it doesn't get
executed and doesn't appear to have analyzer calls, but the following poor
man's solution does result in a test that executes correctly on
x86_64-redhat-linux (EL8) and x86_64-w64-mingw32 under Wine.
git diff ../gcc/testsuite/gcc.dg/analyzer/pipe-glibc.c
diff --git a/gcc/testsuite/gcc.dg/analyzer/pipe-glibc.c
b/gcc/testsuite/gcc.dg/analyzer/pipe-glibc.c
index a8546ea9549..3b93212f56d 100644
--- a/gcc/testsuite/gcc.dg/analyzer/pipe-glibc.c
+++ b/gcc/testsuite/gcc.dg/analyzer/pipe-glibc.c
@@ -30,6 +30,30 @@ write_to_pipe (int file)
fclose (stream);
}
+#ifdef WIN32
+// Use native _pipe with a thread on windows, as forks don't exist
+// This requires that the pipes remain open, so disable close()
+
+#include <io.h>
+#include <fcntl.h>
+#define pipe(FD) _pipe(FD, 256, O_BINARY)
+#define close(X)
+
+#include <windows.h>
+#include <process.h>
+static __cdecl void
+fake_fork (void * arg)
+{
+ int * mypipe = arg;
+ read_from_pipe (mypipe[0]);
+}
+
+#define fork() _beginthread(fake_fork, 0, mypipe)
+#define wait(X) WaitForSingleObject((void *)pid, INFINITE)
+#else
+#include <sys/wait.h>
+#endif
+
int
main (void)
{
@@ -66,6 +90,7 @@ main (void)
Close other end first. */
close (mypipe[0]);
write_to_pipe (mypipe[1]);
+ wait(NULL);
return EXIT_SUCCESS;
}
}
