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[PATCH] s390x: Add hidden definition for __sigsetjmp
- From: fweimer at redhat dot com (Florian Weimer)
- To: libc-alpha at sourceware dot org
- Date: Mon, 14 Nov 2016 15:57:53 +0100
- Subject: [PATCH] s390x: Add hidden definition for __sigsetjmp
- Authentication-results: sourceware.org; auth=none
2016-11-14 Florian Weimer <fweimer@redhat.com>
* sysdeps/s390/s390-64/setjmp.S (NEED_COMPAT_SYMBOLS): New macro.
(libc_hidden_def): Remove redefinition.
(__sigsetjmp): Add hidden definition.
* sysdeps/s390/s390-32/setjmp.S (NEED_COMPAT_SYMBOLS): New macro.
(libc_hidden_def): Remove redefinition.
(__sigsetjmp): Add hidden definition.
diff --git a/sysdeps/s390/s390-32/setjmp.S b/sysdeps/s390/s390-32/setjmp.S
index dbacb0f..c460b5e 100644
--- a/sysdeps/s390/s390-32/setjmp.S
+++ b/sysdeps/s390/s390-32/setjmp.S
@@ -24,17 +24,15 @@
#include <shlib-compat.h>
#include <stap-probe.h>
-#if !IS_IN (rtld)
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
- /* we need a unique name in case of symbol versioning. */
-# define setjmp __v1setjmp
-# define _setjmp __v1_setjmp
-# define __sigsetjmp __v1__sigsetjmp
-
-# undef libc_hidden_def
-# define libc_hidden_def(name) strong_alias(_setjmp, __GI__setjmp)
-# endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
-#endif /* !IS_IN (rtld) */
+#if !IS_IN (rtld) && defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+# define NEED_COMPAT_SYMBOLS 1
+/* We need a unique name in case of symbol versioning. */
+# define setjmp __v1setjmp
+# define _setjmp __v1_setjmp
+# define __sigsetjmp __v1__sigsetjmp
+#else
+# define NEED_COMPAT_SYMBOLS 0
+#endif
/* We include the BSD entry points here as well. */
ENTRY (setjmp)
@@ -47,7 +45,11 @@ ENTRY(_setjmp)
lhi %r3,0 /* second argument of zero */
j .Linternal_sigsetjmp /* branch relativ to __sigsetjmp */
END (_setjmp)
+#if NEED_COMPAT_SYMBOLS
+strong_alias (_setjmp, __GI__setjmp)
+#else
libc_hidden_def (_setjmp)
+#endif
ENTRY(__setjmp)
lhi %r3,0 /* second argument of zero */
@@ -92,15 +94,19 @@ ENTRY(__sigsetjmp)
.L1: .long __sigjmp_save
#endif
END (__sigsetjmp)
+#if NEED_COMPAT_SYMBOLS
+strong_alias (__sigsetjmp, __GI___sigsetjmp)
+#else
+libc_hidden_def (__sigsetjmp)
+#endif
-#if !IS_IN (rtld)
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+#if NEED_COMPAT_SYMBOLS
/* In glibc release 2.19 new versions of setjmp-functions were introduced,
but were reverted before 2.20. Thus both versions are the same function. */
-# undef setjmp
-# undef _setjmp
-# undef __sigsetjmp
+# undef setjmp
+# undef _setjmp
+# undef __sigsetjmp
strong_alias (__v1setjmp, __v2setjmp);
versioned_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0);
@@ -113,5 +119,4 @@ compat_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19);
strong_alias (__v1__sigsetjmp, __v2__sigsetjmp);
versioned_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0);
compat_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19);
-# endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
-#endif /* if !IS_IN (rtld) */
+#endif /* NEED_COMPAT_SYMBOLS */
diff --git a/sysdeps/s390/s390-64/setjmp.S b/sysdeps/s390/s390-64/setjmp.S
index bbcb70d..09f1a8d 100644
--- a/sysdeps/s390/s390-64/setjmp.S
+++ b/sysdeps/s390/s390-64/setjmp.S
@@ -24,17 +24,15 @@
#include <shlib-compat.h>
#include <stap-probe.h>
-#if !IS_IN (rtld)
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
- /* we need a unique name in case of symbol versioning. */
-# define setjmp __v1setjmp
-# define _setjmp __v1_setjmp
-# define __sigsetjmp __v1__sigsetjmp
-
-# undef libc_hidden_def
-# define libc_hidden_def(name) strong_alias(_setjmp, __GI__setjmp)
-# endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
-#endif /* !IS_IN (rtld) */
+#if !IS_IN (rtld) && defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+# define NEED_COMPAT_SYMBOLS 1
+/* We need a unique name in case of symbol versioning. */
+# define setjmp __v1setjmp
+# define _setjmp __v1_setjmp
+# define __sigsetjmp __v1__sigsetjmp
+#else
+# define NEED_COMPAT_SYMBOLS 0
+#endif
/* We include the BSD entry points here as well. */
ENTRY (setjmp)
@@ -47,7 +45,11 @@ ENTRY(_setjmp)
slgr %r3,%r3 /* Second argument of zero. */
j .Linternal_sigsetjmp /* Branch relativ to __sigsetjmp. */
END (_setjmp)
+#if NEED_COMPAT_SYMBOLS
+strong_alias (_setjmp, __GI__setjmp)
+#else
libc_hidden_def (_setjmp)
+#endif
ENTRY(__setjmp)
slgr %r3,%r3 /* Second argument of zero. */
@@ -87,15 +89,19 @@ ENTRY(__sigsetjmp)
jg __sigjmp_save
#endif
END (__sigsetjmp)
+#if NEED_COMPAT_SYMBOLS
+strong_alias (__sigsetjmp, __GI___sigsetjmp)
+#else
+libc_hidden_def (__sigsetjmp)
+#endif
-#if !IS_IN (rtld)
-# if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20)
+#if NEED_COMPAT_SYMBOLS
/* In glibc release 2.19 new versions of setjmp-functions were introduced,
but were reverted before 2.20. Thus both versions are the same function. */
-# undef setjmp
-# undef _setjmp
-# undef __sigsetjmp
+# undef setjmp
+# undef _setjmp
+# undef __sigsetjmp
strong_alias (__v1setjmp, __v2setjmp);
versioned_symbol (libc, __v1setjmp, setjmp, GLIBC_2_0);
@@ -108,5 +114,4 @@ compat_symbol (libc, __v2_setjmp, _setjmp, GLIBC_2_19);
strong_alias (__v1__sigsetjmp, __v2__sigsetjmp);
versioned_symbol (libc, __v1__sigsetjmp, __sigsetjmp, GLIBC_2_0);
compat_symbol (libc, __v2__sigsetjmp, __sigsetjmp, GLIBC_2_19);
-# endif /* if defined SHARED && SHLIB_COMPAT (libc, GLIBC_2_19, GLIBC_2_20) */
-#endif /* if !IS_IN (rtld) */
+#endif /* NEED_COMPAT_SYMBOLS */