mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 17:50:20 +00:00
a1bd5f8673
Use <arch-syscall.h> instead of <asm/unistd.h> to obtain the system call numbers. A few direct includes of <asm/unistd.h> need to be removed (if the system call numbers are already provided indirectly by <sysdep.h>) or replaced with <sys/syscall.h>. Current Linux headers for alpha define the required system call names, so most of the _NR_* hacks are no longer needed. For the 32-bit arm architecture, eliminate the INTERNAL_SYSCALL_ARM macro, now that we have regular system call names for cacheflush and set_tls. There are more such cleanup opportunities for other architectures, but these cleanups are required to avoid macro redefinition errors during the build. For ia64, it is desirable to use <asm/break.h> directly to obtain the break number for system calls (which is not a system call number itself). This requires replacing __BREAK_SYSCALL with __IA64_BREAK_SYSCALL because the former is defined as an alias in <asm/unistd.h>, but not in <asm/break.h>. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
51 lines
1.4 KiB
ArmAsm
51 lines
1.4 KiB
ArmAsm
/* brk system call for Linux/ia64
|
|
Copyright (C) 1999-2020 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Written by Stéphane Eranian <eranian@hpl.hp.com> and
|
|
Jes Sorensen, <Jes.Sorensen@cern.ch>, April 1999.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
#include <asm/errno.h>
|
|
|
|
.global __curbrk
|
|
.type __curbrk,@object
|
|
.size __curbrk,8
|
|
.data
|
|
.align 8
|
|
__curbrk:
|
|
data8 0
|
|
|
|
weak_alias (__curbrk, ___brk_addr)
|
|
|
|
LEAF(__brk)
|
|
.regstk 1, 0, 0, 0
|
|
DO_CALL(__NR_brk)
|
|
cmp.ltu p6, p0 = ret0, in0
|
|
addl r9 = @ltoff(__curbrk), gp
|
|
;;
|
|
ld8 r9 = [r9]
|
|
(p6) mov ret0 = ENOMEM
|
|
(p6) br.cond.spnt.few __syscall_error
|
|
;;
|
|
st8 [r9] = ret0
|
|
mov ret0 = 0
|
|
ret
|
|
END(__brk)
|
|
|
|
weak_alias (__brk, brk)
|