printk_hex_dump

demo

char buf[]={0x0,0x1,0x2,0x3,0x04,0x05,0x06,0x07,0x8,0x09,0xa,0xb,0xc,0x0d,0x0e,0x0f,0x10,0x11};
pr_info("111111\n");
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,1,buf,sizeof(buf),1);
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,2,buf,sizeof(buf),1);
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,4,buf,sizeof(buf),1);
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,8,buf,sizeof(buf),1);
pr_info("222222\n");
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,1,buf,sizeof(buf),0);
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,1,buf,sizeof(buf),1);
pr_info("333333\n");
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_ADDRESS,16,1,buf,sizeof(buf),1);
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_OFFSET,16,1,buf,sizeof(buf),1);
print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_NONE,16,1,buf,sizeof(buf),1);

打印信息

[10274.364381] 111111
[10274.364391] =====00000000a2aa0bf4: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  ................
[10274.364397] =====00000000ee9d42b6: 10 11                                            ..
[10274.364402] =====00000000a2aa0bf4: 0100 0302 0504 0706 0908 0b0a 0d0c 0f0e  ................
[10274.364405] =====00000000ee9d42b6: 1110                                     ..
[10274.364409] =====00000000a2aa0bf4: 03020100 07060504 0b0a0908 0f0e0d0c  ................
[10274.364412] =====00000000ee9d42b6: 10 11                                            ..
[10274.364415] =====00000000a2aa0bf4: 0706050403020100 0f0e0d0c0b0a0908  ................
[10274.364418] =====00000000ee9d42b6: 10 11                                            ..
[10274.364420] 222222
[10274.364422] =====00000000a2aa0bf4: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
[10274.364425] =====00000000ee9d42b6: 10 11
[10274.364427] =====00000000a2aa0bf4: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  ................
[10274.364430] =====00000000ee9d42b6: 10 11                                            ..
[10274.364432] 333333
[10274.364434] =====00000000a2aa0bf4: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  ................
[10274.364436] =====00000000ee9d42b6: 10 11                                            ..
[10274.364439] =====00000000: 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  ................
[10274.364442] =====00000010: 10 11                                            ..
[10274.364445] =====00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f  ................
[10274.364447] =====10 11

例：

print_hex_dump(KERN_DEBUG,"=====",DUMP_PREFIX_NONE,16,1,buf,sizeof(buf),0);

原文地址：https://www.jb51.cc/wenti/3285135.html