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| author | Jason Ekstrand <[email protected]> | 2017-08-16 17:16:45 -0700 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2017-12-04 09:21:09 -0800 |
| commit | 0c49aa0624c289164b5501a8724b6d9fdbae7f49 (patch) | |
| tree | 55af9d527c5cd4820db9a415d2be7003be4adf49 | |
| parent | 591a07632c913cadb1802196c0a50480b354d73c (diff) | |
util: Add a NORETURN macro
Reviewed-by: Tapani Pälli <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>
| -rw-r--r-- | configure.ac | 1 | ||||
| -rw-r--r-- | meson.build | 4 | ||||
| -rw-r--r-- | src/util/macros.h | 6 |
3 files changed, 11 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 475155a96e4..a4564d23f4c 100644 --- a/configure.ac +++ b/configure.ac @@ -250,6 +250,7 @@ AX_GCC_FUNC_ATTRIBUTE([visibility]) AX_GCC_FUNC_ATTRIBUTE([warn_unused_result]) AX_GCC_FUNC_ATTRIBUTE([weak]) AX_GCC_FUNC_ATTRIBUTE([alias]) +AX_GCC_FUNC_ATTRIBUTE([noreturn]) AM_CONDITIONAL([GEN_ASM_OFFSETS], test "x$GEN_ASM_OFFSETS" = xyes) diff --git a/meson.build b/meson.build index f227bc3e018..ddc4a44eb6f 100644 --- a/meson.build +++ b/meson.build @@ -479,6 +479,10 @@ if cc.compiles('int foo(void) { return 0; } int bar(void) __attribute__((alias(" name : '__attribute__((alias(...)))') pre_args += '-DHAVE_FUNC_ATTRIBUTE_ALIAS' endif +if cc.compiles('int foo(void) __attribute__((__noreturn__));', + name : '__attribute__((__noreturn__))') + pre_args += '-DHAVE_FUNC_ATTRIBUTE_NORETURN' +endif # TODO: this is very incomplete if ['linux', 'cygwin'].contains(host_machine.system()) diff --git a/src/util/macros.h b/src/util/macros.h index aa36253217c..d6e37053b15 100644 --- a/src/util/macros.h +++ b/src/util/macros.h @@ -171,6 +171,12 @@ do { \ #define ATTRIBUTE_RETURNS_NONNULL #endif +#ifdef HAVE_FUNC_ATTRIBUTE_NORETURN +#define NORETURN __attribute__((__noreturn__)) +#else +#define NORETURN +#endif + #ifdef __cplusplus /** * Macro function that evaluates to true if T is a trivially |