读《程序员的自我修养》用过的指令记录和笔记

1、流行的集成开发环境（IDE），比如Visual Studio等，一般是将编译和链接的过程一步完成，合并在一起的过程称为构建（build）。

2、GCC编译过程：预处理（Prepressing）、编译（Compilation）、汇编（Assembly）和链接（Linking）。

#chapter 3

  gcc -c SimpleSection.c

 

 #p62

  objdump -h SimpleSection.o

 #p64,p65

  objdump -s -d SimpleSection.o

  objdump -x -s -d SimpleSection.o

 

 #p68

  objcopy -I binary -O elf32-i386 -B i386image.jpg image.o

  objdump -ht image.o

 

 #p63

  size SimpleSection.o

 

 #p69, p84

  readelf -h SimpleSection.o

  readelf -s SimpleSection.o

 

 #p82

  nm SimpleSection.o

 

#chapter 4

 #p101

  ld a.o b.o -e main-o ab

 

 #p107

  objdump -r a.o

 

 #p119

  ar -t libc.a

 #p120

  gcc -c -fno-builtin hello.c

  ar -x libc.a

  ld hello.o printf.o

 #p121

  gcc -static --verbose-fno-builtin hello.c

 

 #p125

  gcc -c -fno-builtin TinyHelloWorld.c

  ld -static -e nomain-o TinyHelloWorld TinyHelloWorld.o

 #p126

  ./TinyHelloWorld

  echo $?

 #p128

  gcc -c -fno-builtin TinyhelloWorld.c

  ld -static -T TinyHelloWorld.lds -oTinyhelloWorld TinyHelloWorld.o

 

 #p132

  gcc -o target target.c -lbfd

  ./target

 

#chapter 5

 #p135, p136

  cl /c /ZaSimpleSection.c

  dumpbin /AllSimpleSection.obj > SimpleSection.txt

  dumpbin SimpleSection.obj /SUMMARY

 

#chapter 6

 #p162

  gcc -static Sectionmapping.c -oSectionMapping.elf

 

 #p162, p163

  readelf -S SectionMapping.elf

  readelf -l SectionMapping.elf

 

 #p166

  ./SectionMapping.elf &

  cat /proc/21963/maps

 

 #p168

  ./maxMalloc

 

 #p173

  ./minbash

 

#chapter 7

 #p185

  gcc -fPIC-shared -o Lib.so Lib.c

  gcc -o Program1 Program1.c ./Lib.so

  gcc -o Program2 Program2.c ./Lib.so

 

 #p187

  ./Program1

  cat /proc/3334/maps

  kill 3334

 

 #p191

  gcc -shared -fPIC -o pic pic.c

  objdump -d pic.so

  #p195

  objdump -h pic.so

  objdump -R pic.so

 

 #p197

  readelf -d foo.so | grepTEXTREL        ::text relocation

 

 #p197

  gcc -shared -o module.so module.c

  gcc -shared -fPIC -o module.so module.c

 

  #p204

  readelf -l Program1 | grep ???????

 

  #p205,p206

  readelf -d Lib.so

  ldd Program1

  #p207

  readelf -sDLib.so

  readelf -s Lib.so

  #p208

  readelf -r Lib.so

  readelf -S Lib.so

 

  #p213

  gcc auxVec.c -o auxVec

  ./auxVec testAuxVec >auxVec.txt

 

 #p216

  gcc -fPIC -shared a1.c -o a1.so

  gcc -fPIC -shared a2.c -o a2.so

  gcc -fPIC -shared b1.c a1.so -o b1.so

  gcc -fPIC -shared b2.c a2.so -o b2.so

 #p217

  gcc main.c b1.so b2.so -o main -Xlinker -rpath ./

  ./main &

  cat /proc/18117/maps

  kill 18117

 

 #p219

  /lib/ld-linux.so.2

 

 #p221

  ldd /lib/ld-linux.so.2

 

  #p224

  objdump -t

  objdump -T

 

  #p225-226

  gcc -o RunSoSimple RunSoSimple.c -ldl

  ./RunSoSimple/lib/i386-linux-gnu/libm-2.19.so

 

  readelf -s /lib/i386-linux-gnu/libm-2.19.so | grep sin

 

  #p226

  gcc RunSo.c -o RunSo -ldl

  ./RunSo /lib/i386-linux-gnu/libm-2.19.so sind2.0 d

 

  gcc RunSo.c -o RunSo -ldl -gstabs

  gdb -q RunSo

  (gdb) disassemble _start

  (gdb) disassemble main

  (gdb) break main

  (gdb) run 1 2 3

  (gdb) disassembly main

  (gdb) step

  (gdb) next

  (gdb) quit

 

Chapter 8

  #p234

  ls -l /lib/i386-linux-gnu/lib*

 

  #p242

  ldconfig -p

 

  #p243

  LD_LIBRARY_PATH=/home/user/bin/ls

  /lib/ld-linux.so.2-library-path /home/user /bin/ls

 

  #p244

  LD_DEBUG=files ./HelloWorld.out

  LD_DEBUG=help ./HelloWorld.out

 (files,bindings,libs,versions,reloc,symbols,statistics,all,help)

 

  #p245

  gcc -shared (-fPIC) -Wl,-soname,my_soname-o library_name source_files library_files

 

  gcc -shared -fPIC -Wl,-soname,libfoo.so.1 -olibfoo.so.1.0.0 libfoo1.c libfoo2.c-lbar1-lbar2

 

  ==>

  gcc -c -g -Wall-o libfoo1.o libfoo1.c

  gcc -c -g -Wall -o libfoo2.o libfoo2.c

  ld -shared -soname libfoo.so.1 -o libfoo.so.1.0.0 libfoo1.olibfoo2.o-lbar1-lbar2

 

  #p246

  ld -rpath/home/mylib -export-dynamic -o program.outprogram.o -lsomelib

  gcc -Wl,-rpath/home/mylib -Wl,-export-dynamic -o program.outprogram.o -lsomelib

 

  #p246

  strip libfoo.so

 

  #p247

  ldconfig -nshared_library_directory

 

Chapter 9

  #p252

  cl /LDd Math.c

 

 #p253

  dumpbin /EXPORTSMath.dll

 

  cl /c TestMath.c

  link TestMath.obj Math.lib

 

  #p260

  link math.obj /DLL/EXPORT:_Add

 

  dumpbin /DIRECTIVESmath.obj

 

  #p262

  dumpbin /IMPORTSMath.dll

 

  #p269

  link /BASE:0x10010000,0x1000 /DlL bar.obj

  editbin /REBASE:BASE=0x10020000 bar.dll

 

  #p270

  cl /c Math.c

  link /DLL /DEF:Math.edfMath.obj

 

  #p271

  editbin /BINDTestMath.exe

  dumpbin /IMPORTSTestMath.exe

 

Chapter 10

  #p289

  cl foo.c /Zi

  dumpbin foo.exe /DISASM> foo.txt

 

  cl foo.c /Zi /Od

  dumpbin foo.exe /DISASM> foo.txt

 

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