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authorIlya Leoshkevich <iii@linux.ibm.com>2018-08-10 09:07:43 +0200
committerStefan Liebler <stli@linux.ibm.com>2018-08-10 09:07:43 +0200
commit69e2444ab1444ab8210598abbcb4822701d368b9 (patch)
treedd8987d70c9f8365bb9d697cfc55cebf94aa2bff /sysdeps/s390/tst-dl-runtime-mod.S
parentbde6320f39cfe56fe3cbafe55fc498d7b329ff05 (diff)
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S390: Test that lazy binding does not clobber R0
The following combinations need to be tested: * 32- (g5, esa and zarch) and 64-bit * linux32 glibc/configure CC='gcc -m31 -march=g5' * linux32 glibc/configure CC='gcc -m31' * linux32 glibc/configure CC='gcc -m31 -mzarch' * With and without VX: * glibc/configure libc_cv_asm_s390_vx=no * With and without profiling (using LD_PROFILE) * With and without pltexit (using LD_AUDIT) ChangeLog: * sysdeps/s390/Makefile: Register the new tests. * sysdeps/s390/tst-dl-runtime-mod.S: New file. * sysdeps/s390/tst-dl-runtime-profile-audit.c: New file. * sysdeps/s390/tst-dl-runtime-profile-noaudit.c: New file. * sysdeps/s390/tst-dl-runtime-resolve-audit.c: New file. * sysdeps/s390/tst-dl-runtime-resolve-noaudit.c: New file. * sysdeps/s390/tst-dl-runtime.c: New file.
Diffstat (limited to 'sysdeps/s390/tst-dl-runtime-mod.S')
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diff --git a/sysdeps/s390/tst-dl-runtime-mod.S b/sysdeps/s390/tst-dl-runtime-mod.S
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+/* Shared library for the lazy binding tests.
+ Copyright (C) 2018 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+ .globl r0x2
+ .type r0x2, @function
+r0x2:
+ .cfi_startproc
+#if defined (__s390x__)
+ agr %r0,%r0
+#else
+ ar %r0,%r0
+#endif
+ br %r14
+ .cfi_endproc
+ .size r0x2, .-r0x2