New HPPA Linux version of pt-initfini.

2001-04-30  Alan Modra  <amodra@one.net.au>

	* sysdeps/unix/sysv/linux/hppa/pt-initfini.c: New.

diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 7dd7b54..c094bec 100644 (file)
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,7 @@
+2001-04-30  Alan Modra  <amodra@one.net.au>
+
+       * sysdeps/unix/sysv/linux/hppa/pt-initfini.c: New.
+
 2001-05-25  Bruce Mitchener  <bruce@cubik.org>
 
        * linuxthreads.texi: Spelling corrections.

diff --git a/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c b/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c
new file mode 100644 (file)
index 0000000..da34ffe
--- /dev/null
+++ b/linuxthreads/sysdeps/unix/sysv/linux/hppa/pt-initfini.c
@@ -0,0 +1,110 @@
+/* Special .init and .fini section support for HPPA.  Linuxthreads version.
+   Copyright (C) 2001 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 Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   In addition to the permissions in the GNU Library General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file with other
+   programs, and to distribute those programs without any restriction
+   coming from the use of this file.  (The Library General Public
+   License restrictions do apply in other respects; for example, they
+   cover modification of the file, and distribution when not linked
+   into another program.)
+
+   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 Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* This file is compiled into assembly code which is then munged by a sed
+   script into two files: crti.s and crtn.s.
+
+   * crti.s puts a function prologue at the beginning of the
+   .init and .fini sections and defines global symbols for
+   those addresses, so they can be called as functions.
+
+   * crtn.s puts the corresponding function epilogues
+   in the .init and .fini sections. */
+
+/* If we use the standard C version, the linkage table pointer won't
+   be properly preserved due to the splitting up of function prologues
+   and epilogues.  Therefore we write these in assembly to make sure
+   they do the right thing.  */
+
+__asm__ ("
+
+#include \"defs.h\"
+
+/*@HEADER_ENDS*/
+
+/*@_init_PROLOG_BEGINS*/
+       .section .init
+       .align 4
+       .globl _init
+       .type _init,@function
+_init:
+       stw     %rp,-20(%sp)
+       stwm    %r4,64(%sp)
+       stw     %r19,-32(%sp)
+       bl      __pthread_initialize_minimal,%rp
+       copy    %r19,%r4        /* delay slot */
+       copy    %r4,%r19
+/*@_init_PROLOG_ENDS*/
+
+/*@_init_EPILOG_BEGINS*/
+/* Here is the tail end of _init.  */
+       .section .init
+       ldw     -84(%sp),%rp
+       copy    %r4,%r19
+       bv      %r0(%rp)
+_end_init:
+       ldwm    -64(%sp),%r4
+
+/* Our very own unwind info, because the assembler can't handle
+   functions split into two or more pieces.  */
+       .section .PARISC.unwind,\"a\",@progbits
+       .extern _init
+       .word   _init, _end_init
+       .byte   0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
+
+/*@_init_EPILOG_ENDS*/
+
+/*@_fini_PROLOG_BEGINS*/
+       .section .fini
+       .align 4
+       .globl _fini
+       .type _fini,@function
+_fini:
+       stw     %rp,-20(%sp)
+       stwm    %r4,64(%sp)
+       stw     %r19,-32(%sp)
+       copy    %r19,%r4
+/*@_fini_PROLOG_ENDS*/
+
+/*@_fini_EPILOG_BEGINS*/
+       .section .fini
+       ldw     -84(%sp),%rp
+       copy    %r4,%r19
+       bv      %r0(%rp)
+_end_fini:
+       ldwm    -64(%sp),%r4
+
+       .section .PARISC.unwind,\"a\",@progbits
+       .extern _fini
+       .word   _fini, _end_fini
+       .byte   0x08, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x08
+
+/*@_fini_EPILOG_ENDS*/
+
+/*@TRAILER_BEGINS*/
+");