mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 05:40:06 +00:00
aeba9785a6
2001-03-16 David Mosberger <davidm@hpl.hp.com> * sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h (struct sigcontext): Drop hack that was needed for 2.1.1 kernel headers. * sysdeps/unix/sysv/linux/ia64/ucontext_i.h: New file. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h: Rewrite to make it overlay with kernel's "struct sigcontext". * sysdeps/unix/sysv/linux/ia64/Makefile (sysdep_headers): Add sys/rse.h for "misc" subdir. (sysdep_routines): Add __start_context for "stdlib" subdir. * sysdeps/unix/sysv/linux/ia64/sys/rse.h: New file (based on kernel file of the same name). * stdlib/Makefile (tests): Add tst-setcontext. * stdlib/tst-setcontext.c: New file (based on a sample program by Uli Drepper). * sysdeps/unix/sysv/linux/ia64/setcontext.S: New file. * sysdeps/unix/sysv/linux/ia64/getcontext.S: New file. * sysdeps/unix/sysv/linux/ia64/__start_context.S: New file. * sysdeps/unix/sysv/linux/ia64/makecontext.c: New file. * sysdeps/unix/sysv/linux/ia64/__longjmp.S (__longjmp): Use extr.u instead of shift & and.
52 lines
1.6 KiB
ArmAsm
52 lines
1.6 KiB
ArmAsm
/* Copyright (C) 2001 Free Software Foundation, Inc.
|
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>.
|
|
|
|
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.
|
|
|
|
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, Inc.,
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
#include <sysdep.h>
|
|
#include <features.h>
|
|
|
|
/* When a context set up by __makecontext() is activated, control
|
|
transfers to __start_context. When we get here:
|
|
|
|
b1 = entry point of function to call
|
|
in0 = address of UCP to resume after function returns
|
|
in1 = global pointer for __start_context
|
|
out0 .. outN = arguments for function */
|
|
|
|
ENTRY(__start_context)
|
|
.prologue
|
|
alloc r2 = ar.pfs, 2, 0, 8, 0
|
|
|
|
.save rp, r4 // terminate call chain with a NULL rp
|
|
mov r4 = r0
|
|
;;
|
|
|
|
.body
|
|
br.call.sptk rp = b1
|
|
1:
|
|
mov gp = in1 // restore gp
|
|
cmp.ne p6,p0 = in0, r0 // uc_link != 0 ?
|
|
;;
|
|
(p6) mov out0 = in0
|
|
(p6) br.call.sptk rp = __setcontext
|
|
.Lexit:
|
|
mov out0 = 0
|
|
br.call.sptk rp = exit
|
|
|
|
1: br.cond.sptk .Lexit
|
|
END(__start_context)
|