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CONFIG_DEBUG_INFO 能显著增加ko文件的大小

时间:2015-01-31 23:19:21      阅读:405      评论:0      收藏:0      [点我收藏+]

标签:内核编译   源代码   分析   

CONFIG_DEBUG_INFO以调试方式编译内核(gcc -g).仅供内核开发者使用Debug VM

my-video.ko:     文件格式 elf32-i386


节:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .note.gnu.build-id 00000024  00000000  00000000  00000034  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  1 .text         00001b32  00000000  00000000  00000058  2**0
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  2 .init.text    000000a4  00000000  00000000  00001b8a  2**0
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  3 .exit.text    0000000a  00000000  00000000  00001c2e  2**0
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, CODE
  4 __ksymtab     00000020  0000000c  0000000c  00001c38  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  5 __ksymtab_gpl 00000008  0000002c  0000002c  00001c58  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  6 __kcrctab     00000010  00000034  00000034  00001c60  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  7 __kcrctab_gpl 00000004  00000044  00000044  00001c70  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
  8 .rodata.str1.1 000004f5  00000000  00000000  00001c74  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  9 .rodata       000000c6  00000000  00000000  0000216c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
 10 .smp_locks    00000020  00000000  00000000  00002234  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
 11 __ksymtab_strings 00000082  00000000  00000000  00002254  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 12 .modinfo      00000123  00000000  00000000  000022d6  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 13 __param       00000030  00000000  00000000  000023fc  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
 14 __mcount_loc  00000078  00000000  00000000  0000242c  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, READONLY, DATA
 15 __versions    00001000  00000000  00000000  000024c0  2**5
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 16 .data         000000fd  00000000  00000000  000034c0  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
 17 .init.data    00000f90  00000000  00000000  000035c0  2**2
                  CONTENTS, ALLOC, LOAD, RELOC, DATA
 18 .gnu.linkonce.this_module 0000017c  00000000  00000000  00004560  2**5
                  CONTENTS, ALLOC, LOAD, RELOC, DATA, LINK_ONCE_DISCARD
 19 .bss          00000031  00000000  00000000  000046dc  2**2
                  ALLOC
 20 .debug_info   000167aa  00000000  00000000  000046dc  2**0
                  CONTENTS, RELOC, READONLY, DEBUGGING
 21 .debug_abbrev 00000966  00000000  00000000  0001ae86  2**0
                  CONTENTS, READONLY, DEBUGGING

 22 .debug_loc    000010d9  00000000  00000000  0001b7ec  2**0
                  CONTENTS, RELOC, READONLY, DEBUGGING
 23 .debug_aranges 00000058  00000000  00000000  0001c8c5  2**0
                  CONTENTS, RELOC, READONLY, DEBUGGING
 24 .debug_ranges 00000348  00000000  00000000  0001c91d  2**0
                  CONTENTS, RELOC, READONLY, DEBUGGING
 25 .debug_line   00001555  00000000  00000000  0001cc65  2**0
                  CONTENTS, RELOC, READONLY, DEBUGGING
 26 .debug_str    0000d091  00000000  00000000  0001e1ba  2**0
                  CONTENTS, READONLY, DEBUGGING
 27 .comment      0000004a  00000000  00000000  0002b24b  2**0
                  CONTENTS, READONLY
 28 .note.GNU-stack 00000000  00000000  00000000  0002b295  2**0
                  CONTENTS, READONLY
 29 .debug_frame  00000568  00000000  00000000  0002b298  2**2
                  CONTENTS, RELOC, READONLY, DEBUGGING

CONFIG_DEBUG_INFO 能显著增加ko文件的大小

标签:内核编译   源代码   分析   

原文地址:http://blog.csdn.net/oldlinux/article/details/43347095

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