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aarch64: More configure checks for libmvec

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Check assembler and linker support too, not just SVE ACLE in the
compiler, since variant PCS requires at least binutils 2.32.1.
This commit is contained in:
Szabolcs Nagy 2023-05-05 09:01:58 +01:00
parent ee68e9cba4
commit 642f1b9b3d
2 changed files with 48 additions and 6 deletions
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29
sysdeps/aarch64/configure vendored
View File

@ -332,7 +332,7 @@ if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
# Check if compiler is sufficient to build mathvec (needs SVE ACLE)
# Check if compiler supports SVE ACLE.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for availability of SVE ACLE" >&5
$as_echo_n "checking for availability of SVE ACLE... " >&6; }
if ${libc_cv_aarch64_sve_acle+:} false; then :
@ -355,6 +355,29 @@ EOF
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_aarch64_sve_acle" >&5
$as_echo "$libc_cv_aarch64_sve_acle" >&6; }
if test $build_mathvec = yes && test $libc_cv_aarch64_sve_acle = no; then
as_fn_error $? "mathvec is enabled but compiler does not have SVE ACLE. Either use a compatible compiler or configure with --disable-mathvec (this results in incomplete ABI)." "$LINENO" 5
# Check if compiler is sufficient to build mathvec
if test $build_mathvec = yes; then
fail=no
if test $libc_cv_aarch64_variant_pcs = no; then
fail=yes
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: mathvec is enabled but linker does not support variant PCS." >&5
$as_echo "$as_me: WARNING: mathvec is enabled but linker does not support variant PCS." >&2;}
fi
if test $libc_cv_aarch64_sve_asm = no; then
fail=yes
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: mathvec is enabled but assembler does not support SVE." >&5
$as_echo "$as_me: WARNING: mathvec is enabled but assembler does not support SVE." >&2;}
fi
if test $libc_cv_aarch64_sve_acle = no; then
fail=yes
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: mathvec is enabled but compiler does not have SVE ACLE." >&5
$as_echo "$as_me: WARNING: mathvec is enabled but compiler does not have SVE ACLE." >&2;}
fi
if test $fail = yes; then
as_fn_error $? "use a compatible toolchain or configure with --disable-mathvec (this results in incomplete ABI)." "$LINENO" 5
fi
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: mathvec is disabled, this results in incomplete ABI." >&5
$as_echo "$as_me: WARNING: mathvec is disabled, this results in incomplete ABI." >&2;}
fi

25
sysdeps/aarch64/configure.ac
View File

@ -106,7 +106,7 @@ if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
# Check if compiler is sufficient to build mathvec (needs SVE ACLE)
# Check if compiler supports SVE ACLE.
AC_CACHE_CHECK(for availability of SVE ACLE, libc_cv_aarch64_sve_acle, [dnl
cat > conftest.c <<EOF
#include <arm_sve.h>
@ -117,6 +117,25 @@ EOF
libc_cv_aarch64_sve_acle=no
fi
rm conftest.c])
if test $build_mathvec = yes && test $libc_cv_aarch64_sve_acle = no; then
AC_MSG_ERROR([mathvec is enabled but compiler does not have SVE ACLE. Either use a compatible compiler or configure with --disable-mathvec (this results in incomplete ABI).])
# Check if compiler is sufficient to build mathvec
if test $build_mathvec = yes; then
fail=no
if test $libc_cv_aarch64_variant_pcs = no; then
fail=yes
AC_MSG_WARN([mathvec is enabled but linker does not support variant PCS.])
fi
if test $libc_cv_aarch64_sve_asm = no; then
fail=yes
AC_MSG_WARN([mathvec is enabled but assembler does not support SVE.])
fi
if test $libc_cv_aarch64_sve_acle = no; then
fail=yes
AC_MSG_WARN([mathvec is enabled but compiler does not have SVE ACLE.])
fi
if test $fail = yes; then
AC_MSG_ERROR([use a compatible toolchain or configure with --disable-mathvec (this results in incomplete ABI).])
fi
else
AC_MSG_WARN([mathvec is disabled, this results in incomplete ABI.])
fi