ltp: Fix build on x86/musl

In last patch it covered out the non-glibc case well
but did not define else case, when __GLIBC__ is not
defined, as a result errors like

| getcpu01.c:107:41: error: use of undeclared identifier 'sys_support'
|         if (((tst_kvercmp(2, 6, 20)) < 0) || !(sys_support)) {

appeared, fixed it with this updated patch

(From OE-Core rev: 04cbc4834076fef6b46af4c5c66046862de7634d)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

3 files changed, 71 insertions, 23 deletions

diff --git a/meta/recipes-extended/ltp/ltp/0008-Check-if-__GLIBC_PREREQ-is-defined-before-using-it.patch b/meta/recipes-extended/ltp/ltp/0008-Check-if-__GLIBC_PREREQ-is-defined-before-using-it.patch
index 59e169e99c..d123074207 100644
--- a/meta/recipes-extended/ltp/ltp/0008-Check-if-__GLIBC_PREREQ-is-defined-before-using-it.patch
+++ b/meta/recipes-extended/ltp/ltp/0008-Check-if-__GLIBC_PREREQ-is-defined-before-using-it.patch
@@ -1,17 +1,18 @@
-From 714024e4699b28eed866d775f4c715b0e55b76f7 Mon Sep 17 00:00:00 2001
+From a3cbee31daae2466bc8dcac36b33a01352693346 Mon Sep 17 00:00:00 2001
 From: Khem Raj <raj.khem@gmail.com>
 Date: Thu, 7 Jan 2016 19:40:08 +0000
-Subject: [PATCH 08/32] Check if __GLIBC_PREREQ is defined before using it
+Subject: [PATCH 01/26] Check if __GLIBC_PREREQ is defined before using it
 
 __GLIBC_PREREQ is specific to glibc so it should be checked if it is
 defined or not.
 
 Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
 ---
- testcases/kernel/syscalls/accept4/accept4_01.c     |  9 ++++++-
- testcases/kernel/syscalls/getcpu/getcpu01.c        | 31 ++++++++++++++++++++++
- .../sched_getaffinity/sched_getaffinity01.c        | 26 ++++++++++++++++++
- 3 files changed, 65 insertions(+), 1 deletion(-)
+ testcases/kernel/syscalls/accept4/accept4_01.c     |  9 ++++-
+ testcases/kernel/syscalls/getcpu/getcpu01.c        | 40 +++++++++++++++++++++-
+ .../sched_getaffinity/sched_getaffinity01.c        | 26 ++++++++++++++
+ 3 files changed, 73 insertions(+), 2 deletions(-)
 
 diff --git a/testcases/kernel/syscalls/accept4/accept4_01.c b/testcases/kernel/syscalls/accept4/accept4_01.c
 index 6072bfa..2b090cb 100644
@@ -58,47 +59,52 @@ index 6072bfa..2b090cb 100644
         acceptfd = accept4(lfd, (struct sockaddr *)&claddr, &addrlen,
                            closeonexec_flag | nonblock_flag);
 diff --git a/testcases/kernel/syscalls/getcpu/getcpu01.c b/testcases/kernel/syscalls/getcpu/getcpu01.c
-index c927512..6de6362 100644
+index c927512..921b107 100644
 --- a/testcases/kernel/syscalls/getcpu/getcpu01.c
 +++ b/testcases/kernel/syscalls/getcpu/getcpu01.c
 @@ -62,6 +62,7 @@
  #include <dirent.h>
  
  #if defined(__i386__) || defined(__x86_64__)
-+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
++#if defined(__GLIBC__)
  #if __GLIBC_PREREQ(2,6)
  #if defined(__x86_64__)
  #include <utmpx.h>
-@@ -72,13 +73,16 @@ int sys_support = 1;
+@@ -75,10 +76,17 @@ int sys_support = 0;
  #else
  int sys_support = 0;
  #endif
++#else
++int sys_support = 0;
 +#endif
- #else
- int sys_support = 0;
- #endif
  
-+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
++#if defined(__GLIBC__)
  #if !(__GLIBC_PREREQ(2, 7))
  #define CPU_FREE(ptr) free(ptr)
  #endif
++#else
++#define CPU_FREE(ptr) free(ptr)
 +#endif
  
  void cleanup(void);
  void setup(void);
-@@ -164,9 +168,11 @@ static inline int getcpu(unsigned *cpu_id, unsigned *node_id,
+@@ -164,9 +172,14 @@ static inline int getcpu(unsigned *cpu_id, unsigned *node_id,
  {
  #if defined(__i386__)
         return syscall(318, cpu_id, node_id, cache_struct);
-+#if defined(__GLIBC__) && defined(__GLIBC_PREREQ)
- #elif __GLIBC_PREREQ(2,6)
+-#elif __GLIBC_PREREQ(2,6)
++#if defined(__GLIBC__)
++#if __GLIBC_PREREQ(2,6)
++       *cpu_id = sched_getcpu();
++#endif
++#else
         *cpu_id = sched_getcpu();
  #endif
 +#endif
         return 0;
  }
  
-@@ -191,15 +197,20 @@ unsigned int set_cpu_affinity(void)
+@@ -191,15 +204,20 @@ unsigned int set_cpu_affinity(void)
         cpu_set_t *set;
         size_t size;
         int nrcpus = 1024;
@@ -119,7 +125,7 @@ index c927512..6de6362 100644
  #if __GLIBC_PREREQ(2, 7)
         size = CPU_ALLOC_SIZE(nrcpus);
         CPU_ZERO_S(size, set);
-@@ -207,8 +218,13 @@ realloc:
+@@ -207,8 +225,13 @@ realloc:
         size = sizeof(cpu_set_t);
         CPU_ZERO(set);
  #endif
@@ -133,7 +139,7 @@ index c927512..6de6362 100644
  #if __GLIBC_PREREQ(2, 7)
                 if (errno == EINVAL && nrcpus < (1024 << 8)) {
                         nrcpus = nrcpus << 2;
-@@ -220,10 +236,17 @@ realloc:
+@@ -220,10 +243,17 @@ realloc:
                                  "NR_CPUS of the kernel is more than 1024, so we'd better use a newer glibc(>= 2.7)");
                 else
  #endif
@@ -151,7 +157,7 @@ index c927512..6de6362 100644
  #if __GLIBC_PREREQ(2, 7)
         CPU_ZERO_S(size, set);
         CPU_SET_S(cpu_max, size, set);
-@@ -231,6 +254,10 @@ realloc:
+@@ -231,6 +261,10 @@ realloc:
         CPU_ZERO(set);
         CPU_SET(cpu_max, set);
  #endif
@@ -162,7 +168,7 @@ index c927512..6de6362 100644
         if (sched_setaffinity(0, size, set) < 0) {
                 CPU_FREE(set);
                 tst_brkm(TFAIL, NULL, "sched_setaffinity:errno:%d", errno);
-@@ -247,11 +274,15 @@ unsigned int max_cpuid(size_t size, cpu_set_t * set)
+@@ -247,11 +281,15 @@ unsigned int max_cpuid(size_t size, cpu_set_t * set)
  {
         unsigned int index, max = 0;
         for (index = 0; index < size * BITS_PER_BYTE; index++)
@@ -275,5 +281,5 @@ index 9d6a81a..4ed13b2 100644
         QUICK_TEST(sched_getaffinity(0, len, (cpu_set_t *) - 1));
         QUICK_TEST(sched_getaffinity(0, 0, mask));
 -- 
-2.7.0
+1.9.1
 
diff --git a/meta/recipes-extended/ltp/ltp/0033-shmat1-Cover-GNU-specific-code-under-__USE_GNU.patch b/meta/recipes-extended/ltp/ltp/0033-shmat1-Cover-GNU-specific-code-under-__USE_GNU.patch
new file mode 100644
index 0000000000..868e1cf1fa
--- /dev/null
+++ b/meta/recipes-extended/ltp/ltp/0033-shmat1-Cover-GNU-specific-code-under-__USE_GNU.patch
@@ -0,0 +1,41 @@
+From 5e3dea669e5b0b769f322d54a3bb9f320b5327da Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Tue, 22 Mar 2016 15:47:14 +0000
+Subject: [PATCH 26/26] shmat1: Cover GNU specific code under __USE_GNU
+
+on x86, we use uc_mcontext element from sigcontext
+which is marked gnu-specific in glibc, this patch
+adds this condition around the code
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+Upstream-Status: Pending
+
+ testcases/kernel/mem/mtest06/shmat1.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/testcases/kernel/mem/mtest06/shmat1.c b/testcases/kernel/mem/mtest06/shmat1.c
+index 0d6d7a4..bee69f6 100644
+--- a/testcases/kernel/mem/mtest06/shmat1.c
++++ b/testcases/kernel/mem/mtest06/shmat1.c
+@@ -111,7 +111,7 @@ int done_shmat = 0;         /* disallow read and writes before shmat      */
+ static void sig_handler(int signal,    /* signal number, set to handle SIGALRM       */
+                        int code, struct ucontext *ut)
+ {                              /* contains pointer to sigcontext structure   */
+-#ifdef __i386__
++#if defined(__i386__) && defined(__USE_GNU)
+        unsigned long except;   /* exception type.                            */
+        int ret = 0;            /* exit code from signal handler.             */
+        struct sigcontext *scp =        /* pointer to sigcontext structure            */
+@@ -122,7 +122,7 @@ static void sig_handler(int signal, /* signal number, set to handle SIGALRM
+                fprintf(stdout, "Test ended, success\n");
+                exit(0);
+        }
+-#ifdef __i386__
++#if defined(__i386__) && defined(__USE_GNU)
+        else {
+                except = scp->trapno;
+                fprintf(stderr, "signal caught - [%d] ", signal);
+-- 
+1.9.1
+
diff --git a/meta/recipes-extended/ltp/ltp_20160126.bb b/meta/recipes-extended/ltp/ltp_20160126.bb
index ac1679382d..720a569ae5 100644
--- a/meta/recipes-extended/ltp/ltp_20160126.bb
+++ b/meta/recipes-extended/ltp/ltp_20160126.bb
@@ -59,7 +59,8 @@ SRC_URI = "git://github.com/linux-test-project/ltp.git \
            file://0030-lib-Use-PTHREAD_MUTEX_RECURSIVE-in-place-of-PTHREAD_.patch \
            file://0031-vma03-fix-page-size-offset-as-per-page-size-alignmen.patch \
            file://0032-regen.sh-Include-asm-unistd.h-explicitly.patch \
-"
+           file://0033-shmat1-Cover-GNU-specific-code-under-__USE_GNU.patch \
+           "
 
 S = "${WORKDIR}/git"