GCC

• Eclipse CDT
  • C/C++ development with the Eclipse Platform

GCC

• GCC online documentation
• An Introduction to GCC
• GCC Frequently Asked Questions
• GNUPro Toolkit
• GCC+ ABI
  • C++ Standard Library ABI
• GCC for ARM EABI

• GCC Cross-Compiler

Install

• Installing and Using Multiple Versions of GCC

collect2

• 20 collect2

GDB

• GDB: The GNU Project Debugger
• 使用GDB來進行除錯
• Red Hat Enterprise Linux 4 Debugging with gdb
• 11.1 Debugging Applications with gdb
• ddd
• cgdb - the curses debugger

Debuging Format

• COFF
• PECOFF
• OMF
• IEEE695
• DWARF(Debug With Attributed Record Format)
  • v2.0
  • v3.0
  • Introduction to the DWARF Debugging Format

MAP file

• 使用 MAP file 除錯的技巧

• Archtecture

ARM

• Introduction to ARM machine description for GCC
• Porting GCC to the TMS320-C6000 DSP Architecture
• GCC ARM Improvement Project
• Linux-ARM Toolchain mailing list
• arm-linux-gcc工具链下载 转载

• 2.6
  • Building arm-linux toolchain for ARM/XSCALE
  • Building arm-linux toolchain for ARM/XScale-iWMMXt(new ABI)
  • ARM-Linux Cross-Compile Chain - Building From Scratch（binutils 2.16.1, gcc 3.4.5, glibc-2.3.5, Kernel 2.6.15）
  • Building a GNU/Linux ARM Toolchain (from scratch)
  • Howto build a gcc 4.0 toolchain for ARM?
  • HOWTO build arm-linux toolchain for ARM 4.2.1
• 2.4
  • ARM cross-compiling howto

MIPS

• Linux/MIPS - Toolchains

• GCC Internals

Internals

• the internals of the GNU compilers
• Using and Porting the GNU Compiler Collection (GCC)
• Workshop on GCC Internals - Downloads
• Porting GCC Compiler Part I : How GCC works?
• The GCC Architecture Documents
• GCC Internals: A Conceptual View Part I, Part II

Tree IL(Intermediate Language)

• GCC Internals -Internal Representations
• GENERIC and GIMPLE: A New Tree Representation for Entire Functions

• SSA(Static single assignment form)
• Parse/AST(Abstract Syntax Tree)
  • Design and Implementation of Tree SSA

• GENERIC
  • provide a language-independent way of representing an entire function in trees
  • <gcc src>/gcc/tree.def

• GIMPLE
  • a simplified version of GENERIC
  • 3-address representation
  • High GIMPLE
    • lexical scopes and inline parallel regions
  • Low GIMPLE
    • no scopes and out-of-line parallel regions
  • Simplified control flow
    • Loops represented with if/goto
    • Lexical scopes removed (low-GIMPLE)

• SIMPLE IL
  • Designing the McCAT Compiler Based on a Family of Structured Intermediate Representations
  • McCat

RTL(Register Transfer Language) IL

• RTL Generation
  • insn-flag.h
  • insn-codes.h
  • inst-emit.c
• RTL Optimization
  • insn-recog.c
  • insn-extract.c
  • insn-attr.h
  • insn-attrtab.c
• Assembly Code Generation
  • insn-output.c

• RTL Representation
  • LISP-like form
  • Object Type
    • Interger
    • Wide Integer
    • String
    • Expression(RTX)
      • <gcc src>/gcc/rtl.def
    • Vector
  • Machine Mode
    • <gcc src>/gcc/machmode.h
    • describe sizes of data object and representation
    • enum machine_mode
    • enum mode_class
      • machine modes are divided into mode classes
  • Instrcution
    • Instructions are also RTL expressions
    • insn object
    • function calling
      • call_insn(caller)
      • call(callee)

machine/target description

• <gcc_src>/gcc/config/machine
  • machine.md(machine description)
    • RTL Patterns(patterns for generating RTL instructions from the parse tree)
    • Assembler mnemonic
  • machine.h(target description macros)
    • endian
    • ABI
    • Calling Convention
    • Register Usage
  • machine.c(user-defined functions used in machine.md & machine.h)

libgcc

• libgcc - The GCC low-level runtime library

• ansi2knr
  • convert ANSI C to Kernighan & Ritchie C

• DJGPP
  • 32-bit C/C++ development system for Intel 80386 (and higher) PCs running DOS

• Endian
  • An Essay on Endian Order

• Strict Aliasing
  • Understanding Strict Aliasing

• Frame Pointer
  • Call stack
  • Calling Convention

• Assembler Option
  • -Wa,--trap

• standard system directories for head files
  • -iwithprefix include versus -isystem `gcc -print-fle-name=include`