alloc.s

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· S 代码 · 共 139 行

.file	1 "alloc.c"
.section .mdebug.abi32
.previous
.section	.text.mpeg2_malloc_hooks,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_malloc_hooks
.ent	mpeg2_malloc_hooks
.type	mpeg2_malloc_hooks, @function
mpeg2_malloc_hooks:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

lui	$2,%hi(malloc_hook)
lui	$3,%hi(free_hook)
sw	$4,%lo(malloc_hook)($2)
j	$31
sw	$5,%lo(free_hook)($3)

.set	macro
.set	reorder
.end	mpeg2_malloc_hooks
.section	.text.mpeg2_free,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_free
.ent	mpeg2_free
.type	mpeg2_free, @function
mpeg2_free:
.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
.mask	0x80010000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-24
sw	$16,16($sp)
sw	$31,20($sp)
lui	$2,%hi(free_hook)
lw	$2,%lo(free_hook)($2)
beq	$2,$0,$L4
move	$16,$4

jal	$2
nop

bne	$2,$0,$L10
lw	$31,20($sp)

$L4:
beq	$16,$0,$L8
lw	$31,20($sp)

lw	$4,-4($16)
lw	$16,16($sp)
j	uc_free
addiu	$sp,$sp,24

$L8:
$L10:
lw	$16,16($sp)
j	$31
addiu	$sp,$sp,24

.set	macro
.set	reorder
.end	mpeg2_free
.section	.text.mpeg2_malloc,"ax",@progbits
.align	2
.align	5
.globl	mpeg2_malloc
.ent	mpeg2_malloc
.type	mpeg2_malloc, @function
mpeg2_malloc:
.frame	$sp,24,$31		# vars= 0, regs= 2/0, args= 16, gp= 0
.mask	0x80010000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-24
sw	$16,16($sp)
sw	$31,20($sp)
lui	$2,%hi(malloc_hook)
lw	$2,%lo(malloc_hook)($2)
beq	$2,$0,$L12
move	$16,$4

jal	$2
nop

beq	$2,$0,$L12
move	$4,$2

$L15:
lw	$31,20($sp)
lw	$16,16($sp)
move	$2,$4
j	$31
addiu	$sp,$sp,24

$L12:
bne	$16,$0,$L20
addiu	$4,$16,67

$L16:
move	$4,$0
lw	$31,20($sp)
lw	$16,16($sp)
move	$2,$4
j	$31
addiu	$sp,$sp,24

$L20:
jal	uc_malloc
nop

addiu	$3,$2,67
move	$5,$2
li	$2,-64			# 0xffffffffffffffc0
and	$3,$3,$2
beq	$5,$0,$L16
move	$4,$3

j	$L15
sw	$5,-4($3)

.set	macro
.set	reorder
.end	mpeg2_malloc
.local	malloc_hook
.comm	malloc_hook,4,4
.local	free_hook
.comm	free_hook,4,4
.ident	"GCC: (GNU) 4.1.2"