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Fix unknown cc flag -fno-ipa-sra

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Clang does not recognize -fno-ipa-sra, so add a check for it.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Prakash Surya <prakash.surya@delphix.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #9946
This commit is contained in:
Ryan Moeller 2020-02-06 12:24:37 -05:00 committed by GitHub
parent 81acb1edcb
commit 5b7e6a3617
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 24 additions and 2 deletions
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21
config/always-compiler-options.m4
View File

@ -160,3 +160,24 @@ AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_OMIT_FRAME_POINTER], [
CFLAGS="$saved_flags"
AC_SUBST([NO_OMIT_FRAME_POINTER])
])
dnl #
dnl # Check if cc supports -fno-ipa-sra option.
dnl #
AC_DEFUN([ZFS_AC_CONFIG_ALWAYS_CC_NO_IPA_SRA], [
AC_MSG_CHECKING([whether $CC supports -fno-ipa-sra])
saved_flags="$CFLAGS"
CFLAGS="$CFLAGS -Werror -fno-ipa-sra"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([], [])], [
NO_IPA_SRA=-fno-ipa-sra
AC_MSG_RESULT([yes])
], [
NO_IPA_SRA=
AC_MSG_RESULT([no])
])
CFLAGS="$saved_flags"
AC_SUBST([NO_IPA_SRA])
])

5
config/zfs-build.m4
View File

@ -59,9 +59,9 @@ AC_DEFUN([ZFS_AC_DEBUG], [
])
AC_DEFUN([ZFS_AC_DEBUGINFO_ENABLE], [
DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline -fno-ipa-sra"
DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline $NO_IPA_SRA"
KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline -fno-ipa-sra"
KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline $NO_IPA_SRA"
KERNEL_MAKE="$KERNEL_MAKE CONFIG_DEBUG_INFO=y"
DEBUGINFO_ZFS="_with_debuginfo"
@ -158,6 +158,7 @@ AC_DEFUN([ZFS_AC_CONFIG_ALWAYS], [
ZFS_AC_CONFIG_ALWAYS_CC_FRAME_LARGER_THAN
ZFS_AC_CONFIG_ALWAYS_CC_NO_FORMAT_TRUNCATION
ZFS_AC_CONFIG_ALWAYS_CC_NO_OMIT_FRAME_POINTER
ZFS_AC_CONFIG_ALWAYS_CC_NO_IPA_SRA
ZFS_AC_CONFIG_ALWAYS_CC_ASAN
ZFS_AC_CONFIG_ALWAYS_TOOLCHAIN_SIMD
ZFS_AC_CONFIG_ALWAYS_SYSTEM