mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-09 04:21:49 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
77 lines
2.2 KiB
ArmAsm
77 lines
2.2 KiB
ArmAsm
/* This testcase is part of GDB, the GNU debugger.
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Copyright 2020-2024 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* This file implements simple Linux syscall wrappers, to be used by tests that
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need to know exactly where the syscall instructions are. */
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#include <asm/unistd.h>
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/* The SYSCALL macro below current supports calling syscalls with up
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to 3 arguments, and, assumes the syscall never returns, like exec
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and exit. If you need to call syscalls with more arguments or you
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need to call syscalls that actually return, you'll need to update
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the macros. We don't bother with optimizing setting up fewer
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arguments for syscalls that take fewer arguments, as we're not
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optimizating for speed or space, but for maintainability. */
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#if defined(__x86_64__)
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#define SYSCALL(NAME, NR) \
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.global NAME ;\
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NAME: ;\
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mov $NR, %rax ;\
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/* rdi, rsi and rdx already contain the right arguments. */ \
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NAME ## _syscall: ;\
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syscall ;\
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ret ;
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#elif defined(__i386__)
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#define SYSCALL(NAME, NR) \
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.global NAME ;\
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NAME: ;\
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mov $NR, %eax ;\
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mov 4(%esp), %ebx ;\
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mov 8(%esp), %ecx ;\
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mov 12(%esp), %edx ;\
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NAME ## _syscall: ;\
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int $0x80 ;\
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ret
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#elif defined(__aarch64__)
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#define SYSCALL(NAME, NR) \
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.global NAME ;\
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NAME: ;\
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mov x8, NR ;\
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/* x0, x1 and x2 already contain the right arguments. */ \
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NAME ## _syscall: ;\
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svc #0
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#else
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# error "Unsupported architecture"
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#endif
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SYSCALL (my_execve, __NR_execve)
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/* void my_exit (int code); */
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SYSCALL (my_exit, __NR_exit)
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.section .note.GNU-stack,"",@progbits
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