diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h | 41 |
1 files changed, 31 insertions, 10 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h index 7f5ba4aeef..3752abc870 100644 --- a/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h +++ b/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h @@ -1,5 +1,5 @@ /* Cancellable system call stubs. Linux/PowerPC version. - Copyright (C) 2003, 2004 Free Software Foundation, Inc. + Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>, 2003. @@ -15,8 +15,8 @@ You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ + Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA + 02110-1301 USA. */ #include <sysdep.h> #include <tls.h> @@ -30,7 +30,6 @@ # define PSEUDO(name, syscall_name, args) \ .section ".text"; \ ENTRY (name) \ - cfi_startproc; \ SINGLE_THREAD_P; \ bne- .Lpseudo_cancel; \ .type __##syscall_name##_nocancel,@function; \ @@ -45,6 +44,7 @@ mflr 9; \ stw 9,52(1); \ cfi_offset (lr, 4); \ + CGOTSETUP; \ DOCARGS_##args; /* save syscall args around CENABLE. */ \ CENABLE; \ stw 3,16(1); /* store CENABLE return value (MASK). */ \ @@ -58,10 +58,10 @@ lwz 4,52(1); \ lwz 0,12(1); /* restore CR/R3. */ \ lwz 3,8(1); \ + CGOTRESTORE; \ mtlr 4; \ mtcr 0; \ - addi 1,1,48; \ - cfi_endproc; + addi 1,1,48; # define DOCARGS_0 # define UNDOCARGS_0 @@ -84,15 +84,30 @@ # define DOCARGS_6 stw 8,40(1); DOCARGS_5 # define UNDOCARGS_6 lwz 8,40(1); UNDOCARGS_5 +# define CGOTSETUP +# define CGOTRESTORE + # ifdef IS_IN_libpthread -# define CENABLE bl JUMPTARGET(__pthread_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__pthread_disable_asynccancel) +# define CENABLE bl __pthread_enable_asynccancel@local +# define CDISABLE bl __pthread_disable_asynccancel@local # elif !defined NOT_IN_libc -# define CENABLE bl JUMPTARGET(__libc_enable_asynccancel) -# define CDISABLE bl JUMPTARGET(__libc_disable_asynccancel) +# define CENABLE bl __libc_enable_asynccancel@local +# define CDISABLE bl __libc_disable_asynccancel@local # elif defined IS_IN_librt # define CENABLE bl JUMPTARGET(__librt_enable_asynccancel) # define CDISABLE bl JUMPTARGET(__librt_disable_asynccancel) +# if defined HAVE_AS_REL16 && defined PIC +# undef CGOTSETUP +# define CGOTSETUP \ + bcl 20,31,1f; \ + 1: stw 30,44(1); \ + mflr 30; \ + addis 30,30,_GLOBAL_OFFSET_TABLE-1b@ha; \ + addi 30,30,_GLOBAL_OFFSET_TABLE-1b@l +# undef CGOTRESTORE +# define CGOTRESTORE \ + lwz 30,44(1) +# endif # else # error Unsupported library # endif @@ -113,3 +128,9 @@ # define NO_CANCELLATION 1 #endif + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif |