Skip to content

Latest commit

 

History

History

gcc

Folders and files

NameName
Last commit message
Last commit date

parent directory

..
ada
ada
 
 
go
go
 
 
weak
weak
 
 
128_bit_int.c
128_bit_int.c
 
 
Makefile
Makefile
 
 
Makefile_params
Makefile_params
 
 
README.md
README.md
 
 
alloca.c
alloca.c
 
 
array_range_initialization.c
array_range_initialization.c
 
 
asm.c
asm.c
 
 
asm.md
asm.md
 
 
atomic_fetch_add.c
atomic_fetch_add.c
 
 
attribute.c
attribute.c
 
 
auto_type.c
auto_type.c
 
 
bibliography.md
bibliography.md
 
 
build.md
build.md
 
 
built-in.md
built-in.md
 
 
builtin_constant_p.c
builtin_constant_p.c
 
 
builtin_expect.c
builtin_expect.c
 
 
builtin_prefetch.c
builtin_prefetch.c
 
 
builtin_return_address.c
builtin_return_address.c
 
 
case_range.c
case_range.c
 
 
common.h
common.h
 
 
compilation-passes.md
compilation-passes.md
 
 
compilation-steps.md
compilation-steps.md
 
 
complex_integer.c
complex_integer.c
 
 
cpp-invocation.md
cpp-invocation.md
 
 
cpp.c
cpp.c
 
 
cross-compiler.md
cross-compiler.md
 
 
empty_struct.c
empty_struct.c
 
 
gcc-as-library.md
gcc-as-library.md
 
 
ide.md
ide.md
 
 
identifiers.c
identifiers.c
 
 
introduction.md
introduction.md
 
 
invocation.md
invocation.md
 
 
libgcc.md
libgcc.md
 
 
literals.c
literals.c
 
 
local_label.c
local_label.c
 
 
nested_functions.c
nested_functions.c
 
 
sentinel.c
sentinel.c
 
 
source-tree.md
source-tree.md
 
 
spec-files.md
spec-files.md
 
 
statement_expression.c
statement_expression.c
 
 
typeof.c
typeof.c
 
 
vector.c
vector.c
 
 
zero_length_array.c
zero_length_array.c
 
 

README.md

GCC

Cheat on the GNU Compile Collection (GCC) language extensions and command line utilities.

  1. Introduction
    1. Compilation steps
    2. Invocation
    3. Spec files
    4. GCC as library
  2. Extensions
    1. Types
      1. Empty struct
      2. Zero length array
      3. 128-bit int
      4. Complex integer
      5. __auto_type
    2. Language
      1. Literals
      2. Identifiers
      3. Nested functions
      4. typeof
      5. Case range
      6. Array range initializer
      7. Local label
      8. Statment expression
    3. Attribute
      1. Variable
        1. weak
        2. Vector extensions
      2. Function
        1. sentinel
    4. asm
      1. asm.md
      2. asm.c
    5. Built-in functions
      1. alloca()
      2. __atomic_fetch_add
      3. __builtin_expect
      4. __builtin_constant_p
      5. __builtin_prefetch
      6. __builtin_return_address
  3. cpp
    1. cpp invocation
    2. cpp
  4. Internals
    1. Build
      1. Cross compiler
    2. Compilation passes
    3. Source tree
    4. libgcc

WIP

  1. IDE
  2. Spec files

Scope

This will only cover C specifics. Generic ELF manipulation tools like ld (which can work across any language) are not included.

Cross compile

Cross compiling means to compile a program for a different OS or architecture than the one the compiler is running.

GCC cannot cross compile for windows from Linux (TODO check).

This can be done with MinGW (TODO how).

Infamous error messages

Error messages that are difficult to interpret for newbs:

  • struct has incomplete type = struct undefined. You forgot to include some header.