diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/doc/extend.texi | 51 | ||||
| -rw-r--r-- | gcc/doc/gcc.texi | 1 |
2 files changed, 37 insertions, 15 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 371e82a..386b6b0 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -36,21 +36,6 @@ extensions, accepted by GCC in C90 mode and in C++. * Using Assembly Language with C:: Instructions and extensions for interfacing C with assembler. * Syntax Extensions:: Other extensions to C syntax. * Semantic Extensions:: GNU C defines behavior for some non-standard constructs. -* Nonlocal Gotos:: Built-ins for nonlocal gotos. -* Constructing Calls:: Built-ins for dispatching a call to another function. -* Return Address:: Getting the return or frame address of a function. -* Stack Scrubbing:: Stack scrubbing internal interfaces. -* Vector Extensions:: Using vector instructions through built-in functions. -* __sync Builtins:: Legacy built-in functions for atomic memory access. -* __atomic Builtins:: Atomic built-in functions with memory model. -* Integer Overflow Builtins:: Built-in functions to perform arithmetics and - arithmetic overflow checking. -* x86 specific memory model extensions for transactional memory:: x86 memory models. -* Object Size Checking:: Built-in functions for limited buffer overflow - checking. -* New/Delete Builtins:: Built-in functions for C++ allocations and deallocations. -* Other Builtins:: Other built-in functions. -* Target Builtins:: Built-in functions specific to particular targets. @end menu @node Additional Numeric Types @@ -14217,6 +14202,42 @@ extension explicit. Additionally, using @code{const} and @code{volatile} in this way is specific to GNU C and does not work in GNU C++. +@node Built-in Functions +@chapter Built-in Functions Provided by GCC +@cindex Built-in Functions + +GCC provides a very large number of implicitly-declared built-in +functions that are typically inlined by the compiler. Some of these +builtins directly correspond to standard library routines, while +others provide the underlying functionality needed to implement +features provided by library functions or similar ``glue'' between GCC +and other programming languages or libraries. Others are +target-specific, providing direct access to instructions that have no +direct C equivalents without the need to write assembly language. There +are also builtins to support various kinds of runtime error checking. + +Most builtins have names prefixed with @samp{__builtin_}. Except as +otherwise documented, all built-in functions are available from any +of the C family languages supported by GCC. + +@menu +* Nonlocal Gotos:: Built-ins for nonlocal gotos. +* Constructing Calls:: Built-ins for dispatching a call to another function. +* Return Address:: Getting the return or frame address of a function. +* Stack Scrubbing:: Stack scrubbing internal interfaces. +* Vector Extensions:: Using vector instructions through built-in functions. +* __sync Builtins:: Legacy built-in functions for atomic memory access. +* __atomic Builtins:: Atomic built-in functions with memory model. +* Integer Overflow Builtins:: Built-in functions to perform arithmetics and + arithmetic overflow checking. +* x86 specific memory model extensions for transactional memory:: x86 memory models. +* Object Size Checking:: Built-in functions for limited buffer overflow + checking. +* New/Delete Builtins:: Built-in functions for C++ allocations and deallocations. +* Other Builtins:: Other built-in functions. +* Target Builtins:: Built-in functions specific to particular targets. +@end menu + @node Nonlocal Gotos @section Nonlocal Gotos @cindex nonlocal gotos diff --git a/gcc/doc/gcc.texi b/gcc/doc/gcc.texi index ba26bf8..3b7b289 100644 --- a/gcc/doc/gcc.texi +++ b/gcc/doc/gcc.texi @@ -144,6 +144,7 @@ Introduction, gccint, GNU Compiler Collection (GCC) Internals}. * C Implementation:: How GCC implements the ISO C specification. * C++ Implementation:: How GCC implements the ISO C++ specification. * C Extensions:: GNU extensions to the C language family. +* Built-in Functions:: Library functions built in to GCC. * C++ Extensions:: GNU extensions to the C++ language. * Objective-C:: GNU Objective-C runtime features. * Compatibility:: Binary Compatibility |