我编译在Debian喘息以下汇编程序运行,但它不会跑给我的错误:二进制不是Debian的喘息
-bash:./power:不能执行二进制文件
代码
.section data
.section text
.global _start
_start:
# do first calc and save the answer
pushl $3
pushl $2
call power
addl $8, %esp
pushl %eax
# do second calc
pushl $2
pushl $5
call power
addl $8, %esp
# add both together
popl %ebx
addl %eax, %ebx
# exit with answer as return status
movl $1, %eax
int $0x80
.type power, @function
power:
# ?
pushl %ebp
movl %esp, %ebp
subl $4, %esp
# load params
movl 8(%ebp), %ebx
movl 12(%ebp), %ecx
movl %ebx, -4(%ebp)
power_loop_start:
# have we looped down to 1?
cmpl $1, %ecx
je end_power
# multiply prev result by base and store
movl -4(%ebp), %eax
imull %ebx, %eax
movl %eax, -4(%ebp)
# go again
decl %ecx
jmp power_loop_start
end_power:
movl -4(%ebp), %eax
movl %ebp, %esp
popl %ebp
ret
我奔跑着:
as power.s -o power.o
ld power.o -o power
./power
两个uname -m
和arch
给我i686的,和二进制输出这对objdump -x
:
$ objdump -x power
power: file format elf32-i386
power
architecture: i386, flags 0x00000012:
EXEC_P, HAS_SYMS
start address 0x00000000
Sections:
Idx Name Size VMA LMA File off Algn
0 text 0000004a 00000000 00000000 00000034 2**0
CONTENTS, READONLY
SYMBOL TABLE:
00000000 l d text 00000000 text
00000023 l F text 00000000 power
00000032 l text 00000000 power_loop_start
00000043 l text 00000000 end_power
00000000 g text 00000000 _start
08049034 g *ABS* 00000000 __bss_start
08049034 g *ABS* 00000000 _edata
08049034 g *ABS* 00000000 _end
不知道我做错了。
其他备注:
本例来自“从头开始编程”一书。我试过一个红帽x86_64机器,as
标志--32
和ld
标志-m elf_i386
,它所有的编译就像在x86机器上一样,但是执行时会给出相同的错误。
你有一个错字:'.section text'应该是'.section .text'(注意点)或者只是'.text'。 – Jester
@Jester哇,我希望我能投票给你100次。我一直在试图弄清楚这一点。文本和数据都没有点!我希望编译器抱怨... – sprocket12