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| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2016-03-20 15:21:40 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2016-03-20 15:21:40 +0200 |
| commit | 583919d70763671ed9feeaa14e1f66379aff88cc (patch) | |
| tree | b90d574cf7a48a8a3fdbbf2e709099a8174133e4 /configure.ac | |
| parent | 897ccd21b7221982806b5c024518f4e989152f14 (diff) | |
| download | libgcrypt-583919d70763671ed9feeaa14e1f66379aff88cc.tar.gz | |
Fix ARM NEON support detection on ARMv6 target
* configure.ac (gcry_cv_gcc_inline_asm_neon): Use '.arm' directive
instead of '.thumb'.
--
Fix allows building ARM NEON assembly implementations when compiler
target is ARMv6. This enables NEON implementations on ARMv7+NEON CPUs
running on ARMv6 OS (for example, Raspbian on Raspberry Pi 2/3).
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index 8ed8d26b..6a2d61bf 100644 --- a/configure.ac +++ b/configure.ac @@ -1487,7 +1487,7 @@ AC_CACHE_CHECK([whether GCC inline assembler supports NEON instructions], AC_COMPILE_IFELSE([AC_LANG_SOURCE( [[__asm__( ".syntax unified\n\t" - ".thumb\n\t" + ".arm\n\t" ".fpu neon\n\t" "vld1.64 {%q0-%q1}, [%r0]!;\n\t" "vrev64.8 %q0, %q3;\n\t" |