mirror of
https://github.com/RGBCube/serenity
synced 2025-07-28 08:47:34 +00:00
LibC: Remove i686 support
This commit is contained in:
parent
85b453c2e4
commit
92da98822a
11 changed files with 9 additions and 169 deletions
|
@ -1,23 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
.section .init, "ax", @progbits
|
||||
.align 4
|
||||
.global _init
|
||||
.type _init, @function
|
||||
_init:
|
||||
pushl %ebp
|
||||
movl %esp, %ebp
|
||||
andl $-16, %esp
|
||||
|
||||
.section .fini, "ax", @progbits
|
||||
.align 4
|
||||
.global _fini
|
||||
.type _fini, @function
|
||||
_fini:
|
||||
pushl %ebp
|
||||
movl %esp, %ebp
|
||||
andl $-16, %esp
|
|
@ -1,15 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
.section .init, "ax", @progbits
|
||||
movl %ebp, %esp
|
||||
popl %ebp
|
||||
retl
|
||||
|
||||
.section .fini, "ax", @progbits
|
||||
movl %ebp, %esp
|
||||
popl %ebp
|
||||
retl
|
|
@ -1,86 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <bits/sighow.h>
|
||||
|
||||
//
|
||||
// /!\ Read setjmp.h before modifying this file!
|
||||
//
|
||||
|
||||
.Lget_pc:
|
||||
mov (%esp), %ebx
|
||||
ret
|
||||
|
||||
.global _setjmp
|
||||
.global setjmp
|
||||
_setjmp:
|
||||
setjmp:
|
||||
xor %eax, %eax // Grab val argument (hardcoded to zero)
|
||||
jmp .Lsigset_common
|
||||
|
||||
.global sigsetjmp
|
||||
sigsetjmp:
|
||||
mov 8(%esp), %eax // Grab val argument
|
||||
|
||||
.Lsigset_common:
|
||||
mov 4(%esp), %ecx // Grab jmp_buf argument
|
||||
mov %eax, 24(%ecx) // Store val into did_save_signal_mask
|
||||
movl $0, 28(%ecx) // Clear saved_signal_mask
|
||||
test %eax, %eax
|
||||
jz .Lsaveregs
|
||||
|
||||
push %ebp // Prepare ABI-compliant call to sigprocmask
|
||||
mov %esp, %ebp
|
||||
push %ebx
|
||||
call .Lget_pc // Grab the GOT pointer
|
||||
addl $_GLOBAL_OFFSET_TABLE_, %ebx
|
||||
|
||||
lea 28(%ecx), %eax // Set argument oldset
|
||||
push %eax
|
||||
push $0 // Set argument set
|
||||
push $0 // Set argument how
|
||||
call sigprocmask@plt
|
||||
add $12, %esp
|
||||
pop %ebx
|
||||
pop %ebp
|
||||
|
||||
.Lsaveregs:
|
||||
mov 4(%esp), %ecx // Grab jmp_buf argument
|
||||
mov (%esp), %edx // Grab return address
|
||||
mov %ebx, (0 * 4)(%ecx) // Save registers
|
||||
mov %esi, (1 * 4)(%ecx)
|
||||
mov %edi, (2 * 4)(%ecx)
|
||||
mov %ebp, (3 * 4)(%ecx)
|
||||
mov %esp, (4 * 4)(%ecx)
|
||||
mov %edx, (5 * 4)(%ecx)
|
||||
xor %eax, %eax
|
||||
ret
|
||||
|
||||
.global _longjmp
|
||||
.global longjmp
|
||||
_longjmp:
|
||||
longjmp:
|
||||
mov 4(%esp), %ecx // Grab jmp_buf argument
|
||||
mov 8(%esp), %eax // Grab val argument
|
||||
test %eax, %eax
|
||||
jnz .Lnonzero
|
||||
mov $1, %eax
|
||||
|
||||
.Lnonzero:
|
||||
mov (0 * 4)(%ecx), %ebx // Restore registers
|
||||
mov (1 * 4)(%ecx), %esi
|
||||
mov (2 * 4)(%ecx), %edi
|
||||
mov (3 * 4)(%ecx), %ebp
|
||||
//
|
||||
// Until this point, the stack is still from the caller.
|
||||
//
|
||||
mov (4 * 4)(%ecx), %esp
|
||||
mov (5 * 4)(%ecx), %edx
|
||||
mov %edx, (%esp) // Patch return address
|
||||
//
|
||||
// From this point on, the former stack has been restored.
|
||||
//
|
||||
ret
|
Loading…
Add table
Add a link
Reference in a new issue