diff options
| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-07-14 14:10:14 +0200 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-07-21 13:32:09 +0200 |
| commit | 357cec385d4f44385b24c299a601afc811abd9b7 (patch) | |
| tree | 0bdbba29e1b832f45e8b18efd2693c696bfd9a8d /MdePkg | |
| parent | e78a2a49ee6b0c0d7c6997c87ace31d7761cf636 (diff) | |
MdePkg: avoid __builtin_unreachable() on GCC v4.4
GCC v4.4 does not implement __builtin_unreachable(), so avoid using
it when building with this version or earlier.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Tested-By: Liming Gao <liming.gao@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Include/Base.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h index 858385828d..7dbf9386b6 100644 --- a/MdePkg/Include/Base.h +++ b/MdePkg/Include/Base.h @@ -89,10 +89,11 @@ VERIFY_SIZE_OF (CHAR16, 2); // warnings.
//
#ifndef UNREACHABLE
- #ifdef __GNUC__
+ #if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)
///
/// Signal compilers and analyzers that this call is not reachable. It is
/// up to the compiler to remove any code past that point.
+ /// Not implemented by GCC 4.4 or earlier.
///
#define UNREACHABLE() __builtin_unreachable ()
#elif defined (__has_feature)
|