diff options
| author | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2020-12-05 13:47:13 +0200 |
|---|---|---|
| committer | Jussi Kivilinna <jussi.kivilinna@iki.fi> | 2020-12-18 20:20:36 +0200 |
| commit | 8352b0ece5237e3f86f1525b072e8f690ad0fa94 (patch) | |
| tree | e355e349d560595087833df4651b0244bc2aa91a | |
| parent | c90fb0d8fb7a84bbcc8d6832de6a554405591850 (diff) | |
| download | libgcrypt-8352b0ece5237e3f86f1525b072e8f690ad0fa94.tar.gz | |
aarch64: use configure check for assembly ELF directives support
* configure.ac (gcry_cv_gcc_asm_elf_directives): New check.
(HAVE_GCC_ASM_ELF_DIRECTIVES): New 'config.h' macro.
* cipher/asm-common-aarch64.h (ELF): Change feature macro check from
__ELF__ to HAVE_GCC_ASM_ELF_DIRECTIVES.
--
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
| -rw-r--r-- | cipher/asm-common-aarch64.h | 2 | ||||
| -rw-r--r-- | configure.ac | 20 |
2 files changed, 21 insertions, 1 deletions
diff --git a/cipher/asm-common-aarch64.h b/cipher/asm-common-aarch64.h index 4ffc1b71..4e0b6d2e 100644 --- a/cipher/asm-common-aarch64.h +++ b/cipher/asm-common-aarch64.h @@ -23,7 +23,7 @@ #include <config.h> -#ifdef __ELF__ +#ifdef HAVE_GCC_ASM_ELF_DIRECTIVES # define ELF(...) __VA_ARGS__ #else # define ELF(...) /*_*/ diff --git a/configure.ac b/configure.ac index e90d46e4..fda74056 100644 --- a/configure.ac +++ b/configure.ac @@ -1225,6 +1225,26 @@ fi # +# Check whether GCC assembler supports for ELF directives. +# +AC_CACHE_CHECK([whether GCC assembler supports for ELF directives], + [gcry_cv_gcc_asm_elf_directives], + [gcry_cv_gcc_asm_elf_directives=no + AC_LINK_IFELSE([AC_LANG_PROGRAM( + [[__asm__( + /* Test if ELF directives '.type' and '.size' are supported. */ + "asmfunc:\n\t" + ".size asmfunc,.-asmfunc;\n\t" + ".type asmfunc,STT_FUNC;\n\t" + );]])], + [gcry_cv_gcc_asm_elf_directives=yes])]) +if test "$gcry_cv_gcc_asm_elf_directives" = "yes" ; then + AC_DEFINE(HAVE_GCC_ASM_ELF_DIRECTIVES,1, + [Defined if underlying assembler supports for ELF directives]) +fi + + +# # Check whether underscores in symbols are required. This needs to be # done before setting up the assembler stuff. # |