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| author |   Roland McGrath <roland@gnu.org> | 2005-02-16 08:45:56 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2005-02-16 08:45:56 +0000 |
| commit | dfba42f233543a068b64c45cffd1ae524acd821c (patch) | |
| tree | 8cc1caa004558b86c6b434cdb3f84508428984ff | |
| parent | 2004-12-21 Jakub Jelinek <jakub@redhat.com> (diff) | |
| download | glibc-dfba42f233543a068b64c45cffd1ae524acd821c.tar.xz glibc-dfba42f233543a068b64c45cffd1ae524acd821c.zip | |
2004-12-21 Jakub Jelinek <jakub@redhat.com>
[BZ #723]
* sysdeps/i386/tls.h (CALL_THREAD_FCT): Maintain 16 byte alignment of
%esp.
* Makefile (tests): Add tst-align2.
* tst-align2.c: New test.
* sysdeps/i386/Makefile (CFLAGS-tst-align{,2}.c): Add
-mpreferred-stack-boundary=4.
| -rw-r--r-- | nptl/Makefile | 2 | ||||
| -rw-r--r-- | nptl/sysdeps/i386/Makefile | 2 | ||||
| -rw-r--r-- | nptl/sysdeps/i386/tls.h | 7 |
3 files changed, 8 insertions, 3 deletions
diff --git a/nptl/Makefile b/nptl/Makefile index 8149ef5ed4..3cef684226 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -205,7 +205,7 @@ tests = tst-attr1 tst-attr2 tst-attr3 \ tst-sem1 tst-sem2 tst-sem3 tst-sem4 tst-sem5 tst-sem6 tst-sem7 \ tst-sem8 tst-sem9 \ tst-barrier1 tst-barrier2 tst-barrier3 tst-barrier4 \ - tst-align \ + tst-align tst-align2 \ tst-basic1 tst-basic2 tst-basic3 tst-basic4 tst-basic5 tst-basic6 \ tst-kill1 tst-kill2 tst-kill3 tst-kill4 tst-kill5 tst-kill6 \ tst-raise1 \ diff --git a/nptl/sysdeps/i386/Makefile b/nptl/sysdeps/i386/Makefile index 693fb0569f..2f0d88f303 100644 --- a/nptl/sysdeps/i386/Makefile +++ b/nptl/sysdeps/i386/Makefile @@ -22,4 +22,6 @@ endif ifeq ($(subdir),nptl) CFLAGS-pthread_create.c += -mpreferred-stack-boundary=4 +CFLAGS-tst-align.c += -mpreferred-stack-boundary=4 +CFLAGS-tst-align2.c += -mpreferred-stack-boundary=4 endif diff --git a/nptl/sysdeps/i386/tls.h b/nptl/sysdeps/i386/tls.h index 18b038f93e..945a4c71d6 100644 --- a/nptl/sysdeps/i386/tls.h +++ b/nptl/sysdeps/i386/tls.h @@ -397,9 +397,12 @@ union user_desc_init #define CALL_THREAD_FCT(descr) \ ({ void *__res; \ int __ignore1, __ignore2; \ - asm volatile ("pushl %%gs:%P4\n\t" \ + asm volatile ("pushl %%eax\n\t" \ + "pushl %%eax\n\t" \ + "pushl %%eax\n\t" \ + "pushl %%gs:%P4\n\t" \ "call *%%gs:%P3\n\t" \ - "addl $4, %%esp" \ + "addl $16, %%esp" \ : "=a" (__res), "=c" (__ignore1), "=d" (__ignore2) \ : "i" (offsetof (struct pthread, start_routine)), \ "i" (offsetof (struct pthread, arg))); \ |