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author | Ulrich Drepper <drepper@redhat.com> | 2000-08-01 03:16:27 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-08-01 03:16:27 +0000 |
commit | ed80b9ee77e1b453abd44ac9ed0eaead0ba24941 (patch) | |
tree | 10eb5b48f99966948a05beacd01758623b2a933a /sysdeps/ia64/elf | |
parent | a535ce141fc6862a2013dacbed935b9aafb6a8f1 (diff) | |
download | glibc-ed80b9ee77e1b453abd44ac9ed0eaead0ba24941.tar.gz glibc-ed80b9ee77e1b453abd44ac9ed0eaead0ba24941.tar.xz glibc-ed80b9ee77e1b453abd44ac9ed0eaead0ba24941.zip |
Update.
2000-07-31 Jes Sorensen <jes@linuxcare.com> * sysdeps/ia64/elf/initfini.c: Kill dummy section since align and endp statements have already been added. 2000-04-18 David Mosberger <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/sysdep.h: Include <sysdeps/ia64/sysdep.h>. * sysdeps/ia64/_mcount.S: New file. * sysdeps/ia64/elf/initfini.c (_init): Preserve gp around call to __gmon_start__. Fix up extraneous whitespace. 2000-01-12 H.J. Lu <hjl@gnu.org> * sysdeps/ia64/elf/initfini.c: New file. 2000-07-31 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/clone.S: Add stop bit to avoid WAW dependency between branch and ar.pfs write.
Diffstat (limited to 'sysdeps/ia64/elf')
-rw-r--r-- | sysdeps/ia64/elf/initfini.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/sysdeps/ia64/elf/initfini.c b/sysdeps/ia64/elf/initfini.c new file mode 100644 index 0000000000..8d5028610f --- /dev/null +++ b/sysdeps/ia64/elf/initfini.c @@ -0,0 +1,116 @@ +/* Special .init and .fini section support for ia64. + Copyright (C) 2000 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. */ + +__asm__ (" + +#include \"defs.h\" + +/*@HEADER_ENDS*/ + +/*@_init_PROLOG_BEGINS*/ + .section .init + .align 16 + .global _init# + .proc _init# +_init: + alloc r34 = ar.pfs, 0, 3, 0, 0 + mov r32 = r12 + mov r33 = b0 + adds r12 = -16, r12 + addl r14 = @ltoff(@fptr(__gmon_start__#)), gp + ;; + ld8 r15 = [r14] + ;; + cmp.eq p6, p7 = 0, r15 + (p6) br.cond.dptk .L5 + +/* we could use r35 to save gp, but we use the stack since that's what + * all the other init routines will do --davidm 00/04/05 */ + st8 [r12] = gp, -16 + br.call.sptk.many b0 = __gmon_start__# ;; + adds r12 = 16, r12 + ;; + ld8 gp = [r12] + ;; +.L5: + .align 16 + .endp _init# + +/*@_init_PROLOG_ENDS*/ + +/*@_init_EPILOG_BEGINS*/ + .section .init + .regstk 0,2,0,0 + mov r12 = r32 + mov ar.pfs = r34 + mov b0 = r33 + br.ret.sptk.many b0 + .endp _init# +/*@_init_EPILOG_ENDS*/ + +/*@_fini_PROLOG_BEGINS*/ + .section .fini + .align 16 + .global _fini# + .proc _fini# +_fini: + alloc r34 = ar.pfs, 0, 3, 0, 0 + mov r32 = r12 + mov r33 = b0 + adds r12 = -16, r12 + ;; + .align 16 + .endp _fini# + +/*@_fini_PROLOG_ENDS*/ + br.call.sptk.many b0 = i_am_not_a_leaf# ;; + ;; + +/*@_fini_EPILOG_BEGINS*/ + .section .fini + mov r12 = r32 + mov ar.pfs = r34 + mov b0 = r33 + br.ret.sptk.many b0 + .endp _fini# + +/*@_fini_EPILOG_ENDS*/ + +/*@TRAILER_BEGINS*/ + .weak __gmon_start__# +"); |