2015-07-11 18:32:11 +00:00
|
|
|
;*****************************************************************************
|
|
|
|
;* Assembly testing and benchmarking tool
|
|
|
|
;* Copyright (c) 2008 Loren Merritt
|
|
|
|
;* Copyright (c) 2012 Henrik Gramner
|
|
|
|
;*
|
2015-07-12 19:00:50 +00:00
|
|
|
;* This file is part of FFmpeg.
|
2015-07-11 18:32:11 +00:00
|
|
|
;*
|
2015-07-12 19:00:50 +00:00
|
|
|
;* FFmpeg is free software; you can redistribute it and/or modify
|
2015-07-11 18:32:11 +00:00
|
|
|
;* it under the terms of the GNU General Public License as published by
|
|
|
|
;* the Free Software Foundation; either version 2 of the License, or
|
|
|
|
;* (at your option) any later version.
|
|
|
|
;*
|
2015-07-12 19:00:50 +00:00
|
|
|
;* FFmpeg is distributed in the hope that it will be useful,
|
2015-07-11 18:32:11 +00:00
|
|
|
;* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
|
;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
|
;* GNU General Public License for more details.
|
|
|
|
;*
|
|
|
|
;* You should have received a copy of the GNU General Public License
|
|
|
|
;* along with this program; if not, write to the Free Software
|
|
|
|
;* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111, USA.
|
|
|
|
;*****************************************************************************
|
|
|
|
|
|
|
|
%define private_prefix checkasm
|
|
|
|
%include "libavutil/x86/x86inc.asm"
|
|
|
|
|
|
|
|
SECTION_RODATA
|
|
|
|
|
|
|
|
error_message: db "failed to preserve register", 0
|
|
|
|
|
|
|
|
%if ARCH_X86_64
|
|
|
|
; just random numbers to reduce the chance of incidental match
|
|
|
|
ALIGN 16
|
|
|
|
x6: dq 0x1a1b2550a612b48c,0x79445c159ce79064
|
|
|
|
x7: dq 0x2eed899d5a28ddcd,0x86b2536fcd8cf636
|
|
|
|
x8: dq 0xb0856806085e7943,0x3f2bf84fc0fcca4e
|
|
|
|
x9: dq 0xacbd382dcf5b8de2,0xd229e1f5b281303f
|
|
|
|
x10: dq 0x71aeaff20b095fd9,0xab63e2e11fa38ed9
|
|
|
|
x11: dq 0x89b0c0765892729a,0x77d410d5c42c882d
|
|
|
|
x12: dq 0xc45ea11a955d8dd5,0x24b3c1d2a024048b
|
|
|
|
x13: dq 0x2e8ec680de14b47c,0xdd7b8919edd42786
|
|
|
|
x14: dq 0x135ce6888fa02cbf,0x11e53e2b2ac655ef
|
|
|
|
x15: dq 0x011ff554472a7a10,0x6de8f4c914c334d5
|
|
|
|
n7: dq 0x21f86d66c8ca00ce
|
|
|
|
n8: dq 0x75b6ba21077c48ad
|
|
|
|
n9: dq 0xed56bb2dcb3c7736
|
|
|
|
n10: dq 0x8bda43d3fd1a7e06
|
|
|
|
n11: dq 0xb64a9c9e5d318408
|
|
|
|
n12: dq 0xdf9a54b303f1d3a3
|
|
|
|
n13: dq 0x4a75479abd64e097
|
|
|
|
n14: dq 0x249214109d5d1c88
|
|
|
|
%endif
|
|
|
|
|
|
|
|
SECTION .text
|
|
|
|
|
|
|
|
cextern fail_func
|
|
|
|
|
|
|
|
; max number of args used by any asm function.
|
|
|
|
; (max_args % 4) must equal 3 for stack alignment
|
|
|
|
%define max_args 15
|
|
|
|
|
|
|
|
%if ARCH_X86_64
|
|
|
|
|
|
|
|
;-----------------------------------------------------------------------------
|
|
|
|
; int checkasm_stack_clobber(uint64_t clobber, ...)
|
|
|
|
;-----------------------------------------------------------------------------
|
|
|
|
cglobal stack_clobber, 1,2
|
|
|
|
; Clobber the stack with junk below the stack pointer
|
|
|
|
%define size (max_args+6)*8
|
|
|
|
SUB rsp, size
|
|
|
|
mov r1, size-8
|
|
|
|
.loop:
|
|
|
|
mov [rsp+r1], r0
|
|
|
|
sub r1, 8
|
|
|
|
jge .loop
|
|
|
|
ADD rsp, size
|
|
|
|
RET
|
|
|
|
|
|
|
|
%if WIN64
|
|
|
|
%assign free_regs 7
|
|
|
|
%else
|
|
|
|
%assign free_regs 9
|
|
|
|
%endif
|
|
|
|
|
|
|
|
;-----------------------------------------------------------------------------
|
2015-08-16 11:00:21 +00:00
|
|
|
; void checkasm_checked_call(void *func, ...)
|
2015-07-11 18:32:11 +00:00
|
|
|
;-----------------------------------------------------------------------------
|
|
|
|
INIT_XMM
|
|
|
|
cglobal checked_call, 2,15,16,max_args*8+8
|
|
|
|
mov r6, r0
|
|
|
|
|
|
|
|
; All arguments have been pushed on the stack instead of registers in order to
|
|
|
|
; test for incorrect assumptions that 32-bit ints are zero-extended to 64-bit.
|
|
|
|
mov r0, r6mp
|
|
|
|
mov r1, r7mp
|
|
|
|
mov r2, r8mp
|
|
|
|
mov r3, r9mp
|
|
|
|
%if UNIX64
|
|
|
|
mov r4, r10mp
|
|
|
|
mov r5, r11mp
|
|
|
|
%assign i 6
|
|
|
|
%rep max_args-6
|
|
|
|
mov r9, [rsp+stack_offset+(i+1)*8]
|
|
|
|
mov [rsp+(i-6)*8], r9
|
|
|
|
%assign i i+1
|
|
|
|
%endrep
|
|
|
|
%else
|
|
|
|
%assign i 4
|
|
|
|
%rep max_args-4
|
|
|
|
mov r9, [rsp+stack_offset+(i+7)*8]
|
|
|
|
mov [rsp+i*8], r9
|
|
|
|
%assign i i+1
|
|
|
|
%endrep
|
|
|
|
%endif
|
|
|
|
|
|
|
|
%if WIN64
|
|
|
|
%assign i 6
|
|
|
|
%rep 16-6
|
|
|
|
mova m %+ i, [x %+ i]
|
|
|
|
%assign i i+1
|
|
|
|
%endrep
|
|
|
|
%endif
|
|
|
|
|
|
|
|
%assign i 14
|
|
|
|
%rep 15-free_regs
|
|
|
|
mov r %+ i, [n %+ i]
|
|
|
|
%assign i i-1
|
|
|
|
%endrep
|
|
|
|
call r6
|
|
|
|
%assign i 14
|
|
|
|
%rep 15-free_regs
|
|
|
|
xor r %+ i, [n %+ i]
|
|
|
|
or r14, r %+ i
|
|
|
|
%assign i i-1
|
|
|
|
%endrep
|
|
|
|
|
|
|
|
%if WIN64
|
|
|
|
%assign i 6
|
|
|
|
%rep 16-6
|
|
|
|
pxor m %+ i, [x %+ i]
|
|
|
|
por m6, m %+ i
|
|
|
|
%assign i i+1
|
|
|
|
%endrep
|
|
|
|
packsswb m6, m6
|
|
|
|
movq r5, m6
|
|
|
|
or r14, r5
|
|
|
|
%endif
|
|
|
|
|
|
|
|
jz .ok
|
|
|
|
mov r9, rax
|
|
|
|
lea r0, [error_message]
|
|
|
|
call fail_func
|
|
|
|
mov rax, r9
|
|
|
|
.ok:
|
|
|
|
RET
|
|
|
|
|
|
|
|
%else
|
|
|
|
|
|
|
|
; just random numbers to reduce the chance of incidental match
|
|
|
|
%define n3 dword 0x6549315c
|
|
|
|
%define n4 dword 0xe02f3e23
|
|
|
|
%define n5 dword 0xb78d0d1d
|
|
|
|
%define n6 dword 0x33627ba7
|
|
|
|
|
|
|
|
;-----------------------------------------------------------------------------
|
2015-08-16 11:00:21 +00:00
|
|
|
; void checkasm_checked_call(void *func, ...)
|
2015-07-11 18:32:11 +00:00
|
|
|
;-----------------------------------------------------------------------------
|
|
|
|
cglobal checked_call, 1,7
|
|
|
|
mov r3, n3
|
|
|
|
mov r4, n4
|
|
|
|
mov r5, n5
|
|
|
|
mov r6, n6
|
|
|
|
%rep max_args
|
|
|
|
PUSH dword [esp+20+max_args*4]
|
|
|
|
%endrep
|
|
|
|
call r0
|
|
|
|
xor r3, n3
|
|
|
|
xor r4, n4
|
|
|
|
xor r5, n5
|
|
|
|
xor r6, n6
|
|
|
|
or r3, r4
|
|
|
|
or r5, r6
|
|
|
|
or r3, r5
|
|
|
|
jz .ok
|
|
|
|
mov r3, eax
|
|
|
|
lea r0, [error_message]
|
|
|
|
mov [esp], r0
|
|
|
|
call fail_func
|
|
|
|
mov eax, r3
|
|
|
|
.ok:
|
|
|
|
add esp, max_args*4
|
|
|
|
REP_RET
|
|
|
|
|
|
|
|
%endif ; ARCH_X86_64
|