Files
SDK_SG200x_V2/linux_5.10/arch/x86/um/setjmp_32.S
carbon 0545e9dc6d init version 2024-05-07
commit d1edce71135cc6d98c0a4b5729774542b676e769
Author: sophgo-forum-service <forum_service@sophgo.com>
Date:   Fri Mar 15 16:07:33 2024 +0800

    [fix] recommend using ssh method to clone repo.
    [fix] fix sensor driver repo branch name.
2024-05-07 19:36:36 +08:00

60 lines
1.0 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
#
# arch/i386/setjmp.S
#
# setjmp/longjmp for the i386 architecture
#
#
# The jmp_buf is assumed to contain the following, in order:
# %ebx
# %esp
# %ebp
# %esi
# %edi
# <return address>
#
.text
.align 4
.globl kernel_setjmp
.type kernel_setjmp, @function
kernel_setjmp:
#ifdef _REGPARM
movl %eax,%edx
#else
movl 4(%esp),%edx
#endif
popl %ecx # Return address, and adjust the stack
xorl %eax,%eax # Return value
movl %ebx,(%edx)
movl %esp,4(%edx) # Post-return %esp!
pushl %ecx # Make the call/return stack happy
movl %ebp,8(%edx)
movl %esi,12(%edx)
movl %edi,16(%edx)
movl %ecx,20(%edx) # Return address
ret
.size kernel_setjmp,.-kernel_setjmp
.text
.align 4
.globl kernel_longjmp
.type kernel_longjmp, @function
kernel_longjmp:
#ifdef _REGPARM
xchgl %eax,%edx
#else
movl 4(%esp),%edx # jmp_ptr address
movl 8(%esp),%eax # Return value
#endif
movl (%edx),%ebx
movl 4(%edx),%esp
movl 8(%edx),%ebp
movl 12(%edx),%esi
movl 16(%edx),%edi
jmp *20(%edx)
.size kernel_longjmp,.-kernel_longjmp