LTP test case write04 will crash on uClinux platform.
Bellow is the fix:
--
Index: testcases/kernel/syscalls/write/write04.c
===================================================================
--- testcases/kernel/syscalls/write/write04.c
+++ testcases/kernel/syscalls/write/write04.c
@@ -71,6 +71,10 @@
static sigjmp_buf jmp;
int rfd, wfd;
+#ifdef UCLINUX
+char *wbuf;
+#endif
+
int main(int argc, char **argv)
{
int lc;
@@ -79,7 +83,9 @@
struct stat buf;
int fail;
int cnt;
+#ifndef UCLINUX
char wbuf[17 * PIPE_SIZE_TEST];
+#endif
struct sigaction sigptr; /* set up signal handler */
/* parse standard options */
@@ -221,6 +227,17 @@
*/
void setup(void)
{
+#ifdef UCLINUX
+ /* Allocate wbuf in heap not in the local function stack */
+ int pagesize = getpagesize();
+
+ wbuf = (char *) malloc(17 * pagesize);
+ if (!wbuf) {
+ tst_resm(TBROK, "malloc failed");
+ cleanup();
+ }
+#endif
+
/* capture signals */
tst_sig(FORK, DEF_HANDLER, cleanup);
@@ -244,6 +261,12 @@
void cleanup()
{
+
+#ifdef UCLINUX
+ if (wbuf)
+ free(wbuf);
+#endif
+
/*
* print errno log if that option was specified.
*/
--
Best regards,
Vivi Li
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