为了创建汇编代码,我使用标志 -S 调用 mipsel-openwrt-linux-uclibc-gcc 编译器(Linaro GCC 4.8-2014.04 r49389)。这会产生如下所示的汇编代码:
.section .mdebug.abi32
.previous
.gnu_attribute 4, 3
.abicalls
.option pic0
.text
$Ltext0:
.cfi_sections .debug_frame
.globl Version
.section .rodata.str1.4,"aMS",@progbits,1
.align 2
$LC0:
.ascii "3.3\000"
.data
.align 2
.type Version, @object
.size Version, 4
Version:
.word $LC0
.text
$Letext0:
.file 1 "version.c"
.section .debug_info,"",@progbits
$Ldebug_info0:
.4byte 0x3d
.2byte 0x4
.4byte $Ldebug_abbrev0
.byte 0x4
.uleb128 0x1
.4byte $LASF0
.byte 0x1
.4byte $LASF1
.4byte $LASF2
.4byte $Ldebug_line0
.uleb128 0x2
.4byte $LASF3
.byte 0x1
.byte 0x2
.4byte 0x2e
.uleb128 0x5
.byte 0x3
.4byte Version
.uleb128 0x3
.byte 0x4
.4byte 0x34
.uleb128 0x4
.4byte 0x39
.uleb128 0x5
.byte 0x1
.byte 0x6
.4byte $LASF4
.byte 0
.section .debug_abbrev,"",@progbits
$Ldebug_abbrev0:
.uleb128 0x1
.uleb128 0x11
.byte 0x1
---- I cutted here ----
.uleb128 0xe
.byte 0
.byte 0
.byte 0
.section .debug_aranges,"",@progbits
.4byte 0x14
.2byte 0x2
.4byte $Ldebug_info0
.byte 0x4
.byte 0
.2byte 0
.2byte 0
.4byte 0
.4byte 0
.section .debug_line,"",@progbits
$Ldebug_line0:
.section .debug_str,"MS",@progbits,1
$LASF2:
.ascii "/home/lvr/Src/openwrt/build_dir/target-mipsel_mips32_uCl"
.ascii "ibc-0.9.33.2/diffutils-3.3/src\000"
$LASF0:
.ascii "GNU C 4.8.3 -mno-branch-likely -mips32 -mtune=mips32 -ms"
.ascii "oft-float -mllsc -mplt -mno-shared -g -Os -std=c99 -fno-"
.ascii "caller-saves -fhonour-copts\000"
$LASF3:
.ascii "Version\000"
$LASF4:
.ascii "char\000"
$LASF1:
.ascii "version.c\000"
.ident "GCC: (OpenWrt/Linaro GCC 4.8-2014.04 r49389) 4.8.3"
.section .note.GNU-stack,"",@progbits
在我看来,这不像 AT&T 或英特尔语法。为了产生更熟悉的语法,我尝试了 -masm=intel 标志,但效果相同..
我的第一个想法是生成的 ASM 代码专用于 mips 的固定字宽,但是任何想法如何通过 mipsel-openwrt-linux-uclibc-gcc 生成 AT&T 或 Intel 语法?
感谢您的任何提示!