gnu-efi/lib/ia32/setjmp.S
Sergei Trofimovich 803b49c40b */*.S: add non-executable GNU stack marking on ELF-linux
binutils-2.39 enabed a few warning by default
(https://sourceware.org/pipermail/binutils/2022-August/122246.html):

> The ELF linker will now generate a warning message if the stack is made executable.

Let's suppress the warnings in assembly files by adding non-executables
stack markings. This fixes at least systemd build which uses '-Wl,--fatal-warnings':

    https://github.com/systemd/systemd/issues/24226
2022-08-08 11:35:10 -04:00

50 lines
1.1 KiB
ArmAsm

/*
* Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.
* This program and the accompanying materials are licensed and made
available
* under the terms and conditions of the BSD License which accompanies
this
* distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php.
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS"
BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
* IMPLIED.
*/
.text
.globl setjmp
#ifndef __MINGW32__
.type setjmp, @function
#else
.def setjmp; .scl 2; .type 32; .endef
#endif
setjmp:
pop %ecx
movl (%esp), %edx
movl %ebx, (%edx)
movl %esi, 4(%edx)
movl %edi, 8(%edx)
movl %ebp, 12(%edx)
movl %esp, 16(%edx)
xorl %eax, %eax
jmp *%ecx
.globl longjmp
#ifndef __MINGW32__
.type longjmp, @function
#else
.def longjmp; .scl 2; .type 32; .endef
#endif
longjmp:
pop %eax
pop %edx
pop %eax
movl (%edx), %ebx
movl 4(%edx), %esi
movl 8(%edx), %edi
#if defined(__ELF__) && defined(__linux__)
.section .note.GNU-stack,"",%progbits
#endif