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| author | Corinna Vinschen <corinna@vinschen.de> | 2012-01-09 14:19:56 +0000 |
|---|---|---|
| committer | Corinna Vinschen <corinna@vinschen.de> | 2012-01-09 14:19:56 +0000 |
| commit | cde9b54e7192bae4dce903c8d39129d31c703cd9 (patch) | |
| tree | fc34a8adff0ad48b2b7f6122f6d5743263773133 | |
| parent | df8c8e18eb9b74133e12c15124c87f4fc576f506 (diff) | |
| download | cygnal-cde9b54e7192bae4dce903c8d39129d31c703cd9.tar.gz cygnal-cde9b54e7192bae4dce903c8d39129d31c703cd9.tar.bz2 cygnal-cde9b54e7192bae4dce903c8d39129d31c703cd9.zip | |
* miscfuncs.cc (thread_wrapper): Make sure stack is 16 byte aligned
to make gcc-3 compiled pthread applications happy.
| -rw-r--r-- | winsup/cygwin/ChangeLog | 5 | ||||
| -rw-r--r-- | winsup/cygwin/miscfuncs.cc | 6 |
2 files changed, 10 insertions, 1 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 9948fec09..ee9e6723b 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,8 @@ +2012-01-09 Corinna Vinschen <corinna@vinschen.de> + + * miscfuncs.cc (thread_wrapper): Make sure stack is 16 byte aligned + to make gcc-3 compiled pthread applications happy. + 2012-01-08 Christopher Faylor <me.cygwin2011@cgf.cx> * dtable.cc (dtable::stdio_init): Always initialize console when we diff --git a/winsup/cygwin/miscfuncs.cc b/winsup/cygwin/miscfuncs.cc index 9aae6aa8b..c6e37942d 100644 --- a/winsup/cygwin/miscfuncs.cc +++ b/winsup/cygwin/miscfuncs.cc @@ -1,7 +1,7 @@ /* miscfuncs.cc: misc funcs that don't belong anywhere else Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, - 2005, 2006, 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. + 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Red Hat, Inc. This file is part of Cygwin. @@ -525,6 +525,10 @@ thread_wrapper (VOID *arg) subl $4, %%ebx # Subtract another 4 bytes \n\ movl %%ebx, %%esp # Set esp \n\ xorl %%ebp, %%ebp # Set ebp to 0 \n\ + # Make gcc 3.x happy and align the stack so that it is \n\ + # 16 byte aligned right before the final call opcode. \n\ + andl $-16, %%esp # 16 bit align \n\ + addl $-12, %%esp # 12 bytes + 4 byte arg = 16 \n\ # Now we moved to the new stack. Save thread func address\n\ # and thread arg on new stack \n\ pushl %%ecx # Push thread arg onto stack \n\ |