From 26c104adf6c5162572b7aa2fac89d0835b7f8f0b Mon Sep 17 00:00:00 2001
From: Randy MacLeod <Randy.MacLeod@windriver.com>
Date: Tue, 16 Oct 2018 21:27:46 -0400
Subject: [PATCH] context APIs are not available on musl

Updated patch for valgrind-3.14

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Randy MacLeod <Randy.MacLeod@windriver.com>

Apply same patch to drd/tests/swapcontext.c
for valgrind-3.17.

Upstream-Status: Submitted [https://bugs.kde.org/show_bug.cgi?id=434775]

Signed-off-by: Yi Fan Yu <yifan.yu@windriver.com>
---
 drd/tests/swapcontext.c              | 6 ++++++
 memcheck/tests/linux/stack_changes.c | 7 ++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drd/tests/swapcontext.c b/drd/tests/swapcontext.c
index 622c70bc5..5e72bb0f3 100644
--- a/drd/tests/swapcontext.c
+++ b/drd/tests/swapcontext.c
@@ -20,6 +20,7 @@
 
 #define STACKSIZE (PTHREAD_STACK_MIN + 4096)
 
+#ifdef __GLIBC__
 typedef struct thread_local {
   ucontext_t uc[3];
   size_t nrsw;
@@ -67,9 +68,11 @@ void *worker(void *data)
   swapcontext(&tlocal->uc[0], &tlocal->uc[1]);
   return NULL;
 }
+#endif
 
 int main(int argc, char *argv[])
 {
+#ifdef __GLIBC__
   enum { NR = 32 };
   thread_local_t tlocal[NR];
   pthread_t thread[NR];
@@ -94,6 +97,9 @@ int main(int argc, char *argv[])
 
   for (i = 0; i < NR; i++)
     pthread_join(thread[i], NULL);
+#else
+    printf("libc context call APIs e.g. getcontext() are deprecated by posix\n");
+#endif
 
   return 0;
 }
diff --git a/memcheck/tests/linux/stack_changes.c b/memcheck/tests/linux/stack_changes.c
index 7f97b90a5..a26cb4ae6 100644
--- a/memcheck/tests/linux/stack_changes.c
+++ b/memcheck/tests/linux/stack_changes.c
@@ -10,6 +10,7 @@
 // This test is checking the libc context calls (setcontext, etc.) and
 // checks that Valgrind notices their stack changes properly.
 
+#ifdef __GLIBC__
 typedef  ucontext_t  mycontext;
 
 mycontext ctx1, ctx2, oldc;
@@ -51,9 +52,11 @@ int init_context(mycontext *uc)
 
     return ret;
 }
+#endif
 
 int main(int argc, char **argv)
 {
+#ifdef __GLIBC__
     int c1 = init_context(&ctx1);
     int c2 = init_context(&ctx2);
 
@@ -66,6 +69,8 @@ int main(int argc, char **argv)
     //free(ctx1.uc_stack.ss_sp);
     VALGRIND_STACK_DEREGISTER(c2);
     //free(ctx2.uc_stack.ss_sp);
-
+#else
+    printf("libc context call APIs e.g. getcontext() are deprecated by posix\n");
+#endif
     return 0;
 }
-- 
2.17.1