git: a606cb388f97 - stable/12 - Remove tests for obsolete compilers in the build system

Dimitry Andric dim at FreeBSD.org
Thu Sep 2 23:58:52 UTC 2021


The branch stable/12 has been updated by dim:

URL: https://cgit.FreeBSD.org/src/commit/?id=a606cb388f975561c37dbabc2fee82c27ef09929

commit a606cb388f975561c37dbabc2fee82c27ef09929
Author:     Eric van Gyzen <vangyzen at FreeBSD.org>
AuthorDate: 2020-05-12 15:22:40 +0000
Commit:     Dimitry Andric <dim at FreeBSD.org>
CommitDate: 2021-09-02 23:30:12 +0000

    Remove tests for obsolete compilers in the build system
    
    Assume gcc is at least 6.4, the oldest xtoolchain in the ports tree.
    Assume clang is at least 6, which was in 11.2-RELEASE.  Drop conditions
    for older compilers.
    
    Reviewed by:    imp (earlier version), emaste, jhb
    Sponsored by:   Dell EMC Isilon
    Differential Revision:  https://reviews.freebsd.org/D24802
    
    (cherry picked from commit fac6dee9eb58b2b558fec2aea749460ca623f6d6)
---
 lib/libclang_rt/Makefile.inc  |  2 +-
 lib/libthr/Makefile           |  3 ---
 lib/msun/Makefile             |  4 ++--
 libexec/rtld-elf/Makefile     |  4 ----
 libexec/tftpd/tests/Makefile  |  3 ---
 share/mk/bsd.compiler.mk      | 14 +++---------
 share/mk/bsd.sys.mk           | 50 +++++++++++++------------------------------
 stand/arm/uboot/Makefile      |  2 +-
 stand/defs.mk                 |  4 ----
 stand/efi/Makefile            |  6 ------
 stand/efi/boot1/Makefile      |  4 ----
 stand/efi/loader/Makefile     |  4 ----
 stand/i386/boot2/Makefile     |  3 ---
 stand/i386/isoboot/Makefile   |  3 ---
 stand/libsa/Makefile          |  4 ----
 sys/conf/Makefile.arm         |  4 ----
 sys/conf/kern.mk              | 37 +++++++++++---------------------
 sys/conf/kern.post.mk         |  3 ---
 sys/conf/kern.pre.mk          |  4 ----
 sys/conf/kmod.mk              | 11 ----------
 sys/modules/Makefile          |  2 --
 usr.sbin/acpi/acpidb/Makefile |  2 +-
 usr.sbin/trpt/Makefile        |  6 ------
 usr.sbin/zic/zic/Makefile     |  2 +-
 24 files changed, 36 insertions(+), 145 deletions(-)

diff --git a/lib/libclang_rt/Makefile.inc b/lib/libclang_rt/Makefile.inc
index 07b66015acb1..53e0f7972768 100644
--- a/lib/libclang_rt/Makefile.inc
+++ b/lib/libclang_rt/Makefile.inc
@@ -32,7 +32,7 @@ CFLAGS+=	${PICFLAG}
 CFLAGS+=	-fno-builtin
 CFLAGS+=	-fno-exceptions
 CXXFLAGS+=	-fno-rtti
-.if ${COMPILER_TYPE} == clang && ${COMPILER_VERSION} >= 30700
+.if ${COMPILER_TYPE} == clang
 CFLAGS+=	-fno-sanitize=safe-stack
 .endif
 CFLAGS+=	-fno-stack-protector
diff --git a/lib/libthr/Makefile b/lib/libthr/Makefile
index 5f3d52661c99..c77b6b565a87 100644
--- a/lib/libthr/Makefile
+++ b/lib/libthr/Makefile
@@ -29,10 +29,7 @@ CFLAGS+=-Winline
 
 CFLAGS.thr_stack.c+=	-Wno-cast-align
 CFLAGS.rtld_malloc.c+=	-Wno-cast-align
-.include <bsd.compiler.mk>
-.if !(${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 40300)
 CFLAGS.thr_symbols.c+=	-Wno-missing-variable-declarations
-.endif
 
 .ifndef NO_THREAD_UNWIND_STACK
 CFLAGS+=-fexceptions
diff --git a/lib/msun/Makefile b/lib/msun/Makefile
index d56b33deabea..0a486bb5a086 100644
--- a/lib/msun/Makefile
+++ b/lib/msun/Makefile
@@ -119,12 +119,12 @@ COMMON_SRCS+=	catrigl.c \
 	s_nextafterl.c s_nexttoward.c s_remquol.c s_rintl.c s_roundl.c \
 	s_scalbnl.c s_sinl.c s_sincosl.c \
 	s_tanhl.c s_tanl.c s_truncl.c w_cabsl.c
-# Work around this warning from gcc 6:
+# Work around this warning from gcc:
 #     lib/msun/ld80/e_powl.c:275:1: error: floating constant exceeds range of
 #     'long double' [-Werror=overflow]
 #     if( y >= LDBL_MAX )
 # See also: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=130067
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000
+.if ${COMPILER_TYPE} == "gcc"
 CFLAGS.e_powl.c+= -Wno-error=overflow
 .endif
 .endif
diff --git a/libexec/rtld-elf/Makefile b/libexec/rtld-elf/Makefile
index a51acf68068a..be18f1759cc6 100644
--- a/libexec/rtld-elf/Makefile
+++ b/libexec/rtld-elf/Makefile
@@ -111,8 +111,4 @@ ${PROG_FULL}:	${VERSION_MAP}
 # GCC warns about redeclarations even though they have __exported
 # and are therefore not identical to the ones from the system headers.
 CFLAGS+=	-Wno-redundant-decls
-.if ${COMPILER_VERSION} < 40300
-# Silence -Wshadow false positives in ancient GCC
-CFLAGS+=	-Wno-shadow
-.endif
 .endif
diff --git a/libexec/tftpd/tests/Makefile b/libexec/tftpd/tests/Makefile
index 9aa420cec1a5..390921e31de7 100644
--- a/libexec/tftpd/tests/Makefile
+++ b/libexec/tftpd/tests/Makefile
@@ -2,11 +2,8 @@
 
 .include <bsd.own.mk>
 
-# Skip on GCC 4.2, because it lacks __COUNTER__
-.if ${COMPILER_TYPE} != "gcc" || ${COMPILER_VERSION} >= 40300
 ATF_TESTS_C=	functional
 TEST_METADATA.functional+=	timeout=15
-.endif
 
 LIBADD=	util
 WARNS?=	6
diff --git a/share/mk/bsd.compiler.mk b/share/mk/bsd.compiler.mk
index cd87740730e9..4da0578d1b4e 100644
--- a/share/mk/bsd.compiler.mk
+++ b/share/mk/bsd.compiler.mk
@@ -182,20 +182,12 @@ ${X_}COMPILER_FREEBSD_VERSION=	unknown
 .endif
 .endif
 
-${X_}COMPILER_FEATURES=
-.if (${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 30300) || \
-	(${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 40800)
-${X_}COMPILER_FEATURES+=	c++11
-.endif
-.if (${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 30400) || \
-	(${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 50000)
-${X_}COMPILER_FEATURES+=	c++14
-.endif
-.if (${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 50000) || \
+${X_}COMPILER_FEATURES=		c++11 c++14
+.if ${${X_}COMPILER_TYPE} == "clang" || \
 	(${${X_}COMPILER_TYPE} == "gcc" && ${${X_}COMPILER_VERSION} >= 70000)
 ${X_}COMPILER_FEATURES+=	c++17
 .endif
-.if ${${X_}COMPILER_TYPE} == "clang" && ${${X_}COMPILER_VERSION} >= 60000
+.if ${${X_}COMPILER_TYPE} == "clang"
 ${X_}COMPILER_FEATURES+=	retpoline
 .endif
 
diff --git a/share/mk/bsd.sys.mk b/share/mk/bsd.sys.mk
index b8bf3d0cd25a..53d6b22ee921 100644
--- a/share/mk/bsd.sys.mk
+++ b/share/mk/bsd.sys.mk
@@ -6,8 +6,7 @@
 # Enable various levels of compiler warning checks.  These may be
 # overridden (e.g. if using a non-gcc compiler) by defining MK_WARNS=no.
 
-# for 4.2.1 GCC:   http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/Warning-Options.html
-# for current GCC: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
+# for GCC:   https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
 # for clang: https://clang.llvm.org/docs/DiagnosticsReference.html
 
 .include <bsd.compiler.mk>
@@ -29,15 +28,6 @@ CFLAGS+=	-std=${CSTD}
 CXXFLAGS+=	-std=${CXXSTD}
 .endif
 
-#
-# Turn off -Werror for gcc 4.2.1. The compiler is on the glide path out of the
-# system, and any warnings specific to it are no longer relevant as there are
-# too many false positives.
-#
-.if ${COMPILER_VERSION} <  50000
-NO_WERROR.gcc=	yes
-.endif
-
 # -pedantic is problematic because it also imposes namespace restrictions
 #CFLAGS+=	-pedantic
 .if defined(WARNS)
@@ -81,19 +71,13 @@ CWARNFLAGS+=	-Wno-pointer-sign
 # is set to low values, these have to be disabled explicitly.
 .if ${WARNS} <= 6
 CWARNFLAGS.clang+=	-Wno-empty-body -Wno-string-plus-int
-.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30400
 CWARNFLAGS.clang+=	-Wno-unused-const-variable
-.endif
 .endif # WARNS <= 6
 .if ${WARNS} <= 3
 CWARNFLAGS.clang+=	-Wno-tautological-compare -Wno-unused-value\
 		-Wno-parentheses-equality -Wno-unused-function -Wno-enum-conversion
-.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
 CWARNFLAGS.clang+=	-Wno-unused-local-typedef
-.endif
-.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 40000
 CWARNFLAGS.clang+=	-Wno-address-of-packed-member
-.endif
 .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 90100
 CWARNFLAGS.gcc+=	-Wno-address-of-packed-member
 .endif
@@ -113,7 +97,7 @@ CWARNFLAGS.clang+=	-Wno-array-bounds
 .endif # NO_WARRAY_BOUNDS
 .if defined(NO_WMISLEADING_INDENTATION) && \
     ((${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 100000) || \
-     (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60100))
+      ${COMPILER_TYPE} == "gcc")
 CWARNFLAGS+=		-Wno-misleading-indentation
 .endif # NO_WMISLEADING_INDENTATION
 .endif # WARNS
@@ -137,8 +121,10 @@ CWARNFLAGS+=	-Werror
 CWARNFLAGS+=	-Wno-format
 .endif # NO_WFORMAT || NO_WFORMAT.${COMPILER_TYPE}
 
-# GCC 5.2.0
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 50200
+# GCC
+# We should clean up warnings produced with these flags.
+# They were originally added as a quick hack to enable gcc5/6.
+.if ${COMPILER_TYPE} == "gcc"
 CWARNFLAGS+=	-Wno-error=address			\
 		-Wno-error=array-bounds			\
 		-Wno-error=attributes			\
@@ -150,15 +136,18 @@ CWARNFLAGS+=	-Wno-error=address			\
 		-Wno-error=extra			\
 		-Wno-error=inline			\
 		-Wno-error=logical-not-parentheses	\
+		-Wno-error=nonnull-compare		\
+		-Wno-error=shift-negative-value		\
 		-Wno-error=strict-aliasing		\
+		-Wno-error=tautological-compare		\
 		-Wno-error=uninitialized		\
 		-Wno-error=unused-but-set-variable	\
+		-Wno-error=unused-const-variable	\
 		-Wno-error=unused-function		\
 		-Wno-error=unused-value
-.endif
 
 # GCC 6.1.0
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60100
+.if ${COMPILER_VERSION} >= 60100
 CWARNFLAGS+=	-Wno-error=empty-body			\
 		-Wno-error=nonnull-compare		\
 		-Wno-error=shift-negative-value		\
@@ -167,7 +156,7 @@ CWARNFLAGS+=	-Wno-error=empty-body			\
 .endif
 
 # GCC 7.1.0
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 70100
+.if ${COMPILER_VERSION} >= 70100
 CWARNFLAGS+=	-Wno-error=bool-operation		\
 		-Wno-error=deprecated			\
 		-Wno-error=expansion-to-defined		\
@@ -183,7 +172,7 @@ CWARNFLAGS+=	-Wno-error=bool-operation		\
 .endif
 
 # GCC 8.1.0
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 80100
+.if ${COMPILER_VERSION} >= 80100
 CWARNFLAGS+=	-Wno-error=aggressive-loop-optimizations	\
 		-Wno-error=cast-function-type			\
 		-Wno-error=catch-value				\
@@ -192,9 +181,10 @@ CWARNFLAGS+=	-Wno-error=aggressive-loop-optimizations	\
 		-Wno-error=sizeof-pointer-memaccess		\
 		-Wno-error=stringop-truncation
 .endif
+.endif	# gcc
 
 # How to handle FreeBSD custom printf format specifiers.
-.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
+.if ${COMPILER_TYPE} == "clang"
 FORMAT_EXTENSIONS=	-D__printf__=__freebsd_kprintf__
 .else
 FORMAT_EXTENSIONS=	-fformat-extensions
@@ -209,11 +199,7 @@ CFLAGS+=	-Wno-format-zero-length
 
 CLANG_OPT_SMALL= -mstack-alignment=8 -mllvm -inline-threshold=3\
 		 -mllvm -simplifycfg-dup-ret
-.if ${COMPILER_VERSION} >= 30500 && ${COMPILER_VERSION} < 30700
-CLANG_OPT_SMALL+= -mllvm -enable-gvn=false
-.else
 CLANG_OPT_SMALL+= -mllvm -enable-load-pre=false
-.endif
 CFLAGS.clang+=	 -Qunused-arguments
 .if ${MACHINE_CPUARCH} == "sparc64"
 # Don't emit .cfi directives, since we must use GNU as on sparc64, for now.
@@ -228,14 +214,8 @@ CXXFLAGS.clang+=	 -Wno-c++11-extensions
 
 .if ${MK_SSP} != "no" && \
     ${MACHINE_CPUARCH} != "arm" && ${MACHINE_CPUARCH} != "mips"
-.if (${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30500) || \
-    (${COMPILER_TYPE} == "gcc" && \
-     (${COMPILER_VERSION} == 40201 || ${COMPILER_VERSION} >= 40900))
 # Don't use -Wstack-protector as it breaks world with -Werror.
 SSP_CFLAGS?=	-fstack-protector-strong
-.else
-SSP_CFLAGS?=	-fstack-protector
-.endif
 CFLAGS+=	${SSP_CFLAGS}
 .endif # SSP && !ARM && !MIPS
 
diff --git a/stand/arm/uboot/Makefile b/stand/arm/uboot/Makefile
index 0c906c99ee6f..f99282aa6e5a 100644
--- a/stand/arm/uboot/Makefile
+++ b/stand/arm/uboot/Makefile
@@ -24,7 +24,7 @@ UBLDR_LOADADDR?=	0x1000000
 # Architecture-specific loader code
 SRCS=		start.S conf.c self_reloc.c vers.c
 
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} > 40201
+.if ${COMPILER_TYPE} == "gcc"
 CWARNFLAGS.self_reloc.c+=	-Wno-error=maybe-uninitialized
 .endif
 
diff --git a/stand/defs.mk b/stand/defs.mk
index c81be884f3ae..45d48ccdab8a 100644
--- a/stand/defs.mk
+++ b/stand/defs.mk
@@ -149,11 +149,7 @@ CFLAGS+=	-fPIC -mno-red-zone
 # Do not generate movt/movw, because the relocation fixup for them does not
 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
 # Also, the fpu is not available in a standalone environment.
-.if ${COMPILER_VERSION} < 30800
-CFLAGS.clang+=	-mllvm -arm-use-movt=0
-.else
 CFLAGS.clang+=	-mno-movt
-.endif
 CFLAGS.clang+=  -mfpu=none
 CFLAGS+=	-fPIC
 .endif
diff --git a/stand/efi/Makefile b/stand/efi/Makefile
index 9ab6aa4291fb..94cb5bba5638 100644
--- a/stand/efi/Makefile
+++ b/stand/efi/Makefile
@@ -4,10 +4,6 @@ NO_OBJ=t
 
 .include <bsd.init.mk>
 
-# In-tree GCC does not support __attribute__((ms_abi)), but gcc newer
-# than 4.5 supports it.
-.if ${COMPILER_TYPE} != "gcc" || ${COMPILER_VERSION} >= 40500
-
 SUBDIR.yes+=	libefi
 SUBDIR.${MK_FDT}+=	fdt
 SUBDIR.yes+=	.WAIT
@@ -18,6 +14,4 @@ SUBDIR.${MK_FORTH}+= loader_4th
 SUBDIR.${MK_LOADER_LUA}+= loader_lua
 SUBDIR.yes+=	loader_simp
 
-.endif # ${COMPILER_TYPE} != "gcc" || ${COMPILER_VERSION} >= 40500
-
 .include <bsd.subdir.mk>
diff --git a/stand/efi/boot1/Makefile b/stand/efi/boot1/Makefile
index d4ac55598bb7..899b00d97341 100644
--- a/stand/efi/boot1/Makefile
+++ b/stand/efi/boot1/Makefile
@@ -42,10 +42,6 @@ CFLAGS.zfs_module.c+=	-I${SYSDIR}/cddl/contrib/opensolaris/common/lz4
 CFLAGS+=	-DEFI_ZFS_BOOT
 .endif
 
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} > 40201
-CWARNFLAGS.self_reloc.c+=	-Wno-error=maybe-uninitialized
-.endif
-
 CFLAGS+=	-I${EFIINC}
 CFLAGS+=	-I${EFIINCMD}
 CFLAGS+=	-I${SYSDIR}/contrib/dev/acpica/include
diff --git a/stand/efi/loader/Makefile b/stand/efi/loader/Makefile
index d290cae5d4c8..cda242924be0 100644
--- a/stand/efi/loader/Makefile
+++ b/stand/efi/loader/Makefile
@@ -32,10 +32,6 @@ CFLAGS+=	-DEFI_ZFS_BOOT
 HAVE_ZFS=	yes
 .endif
 
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} > 40201
-CWARNFLAGS.self_reloc.c+=	-Wno-error=maybe-uninitialized
-.endif
-
 # We implement a slightly non-standard %S in that it always takes a
 # CHAR16 that's common in UEFI-land instead of a wchar_t. This only
 # seems to matter on arm64 where wchar_t defaults to an int instead
diff --git a/stand/i386/boot2/Makefile b/stand/i386/boot2/Makefile
index 3830199b2c4b..713929efc2b5 100644
--- a/stand/i386/boot2/Makefile
+++ b/stand/i386/boot2/Makefile
@@ -37,9 +37,6 @@ CFLAGS+=-fomit-frame-pointer \
 CFLAGS.gcc+=	-Os \
 		-fno-asynchronous-unwind-tables \
 		--param max-inline-insns-single=100
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} <= 40201
-CFLAGS.gcc+=   -mno-align-long-strings
-.endif
 
 CFLAGS.clang+=	-Oz ${CLANG_OPT_SMALL}
 
diff --git a/stand/i386/isoboot/Makefile b/stand/i386/isoboot/Makefile
index 597958065090..59033dfcd4c9 100644
--- a/stand/i386/isoboot/Makefile
+++ b/stand/i386/isoboot/Makefile
@@ -32,9 +32,6 @@ CFLAGS+=-DBOOTPROG=\"isoboot\" \
 	-Winline -Wno-pointer-sign
 
 CFLAGS.gcc+=	--param max-inline-insns-single=100
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} <= 40201
-CFLAGS.gcc+=	-Wno-uninitialized
-.endif
 CFLAGS.clang+=  -Oz ${CLANG_OPT_SMALL}
 
 LD_FLAGS+=${LD_FLAGS_BIN}
diff --git a/stand/libsa/Makefile b/stand/libsa/Makefile
index 0ca994386f47..44db171b141f 100644
--- a/stand/libsa/Makefile
+++ b/stand/libsa/Makefile
@@ -46,11 +46,7 @@ SRCS+=	subr_boot.c
 # Do not generate movt/movw, because the relocation fixup for them does not
 # translate to the -Bsymbolic -pie format required by self_reloc() in loader(8).
 # Also, the fpu is not available in a standalone environment.
-.if ${COMPILER_VERSION} < 30800
-CFLAGS.clang+=	-mllvm -arm-use-movt=0
-.else
 CFLAGS.clang+=	-mno-movt
-.endif
 CFLAGS.clang+=	-mfpu=none
 
 .PATH: ${SRCTOP}/contrib/llvm-project/compiler-rt/lib/builtins/arm/
diff --git a/sys/conf/Makefile.arm b/sys/conf/Makefile.arm
index 8c9069bad311..ba918c27cbc5 100644
--- a/sys/conf/Makefile.arm
+++ b/sys/conf/Makefile.arm
@@ -47,10 +47,6 @@ CFLAGS.clang += -mfpu=none
 
 .if !empty(DDB_ENABLED)
 CFLAGS += -funwind-tables
-.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 30500
-# clang < 3.5.0 requires us to tell it to emit assembly with unwind information
-CFLAGS += -mllvm -arm-enable-ehabi
-.endif
 .endif
 
 # "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
diff --git a/sys/conf/kern.mk b/sys/conf/kern.mk
index 6c8480810a32..d87752649679 100644
--- a/sys/conf/kern.mk
+++ b/sys/conf/kern.mk
@@ -31,19 +31,14 @@ NO_WTAUTOLOGICAL_POINTER_COMPARE= -Wno-tautological-pointer-compare
 CWARNEXTRA?=	-Wno-error=tautological-compare -Wno-error=empty-body \
 		-Wno-error=parentheses-equality -Wno-error=unused-function \
 		-Wno-error=pointer-sign
-.if ${COMPILER_VERSION} >= 30700
 CWARNEXTRA+=	-Wno-error=shift-negative-value
-.endif
-.if ${COMPILER_VERSION} >= 40000
 CWARNEXTRA+=	-Wno-address-of-packed-member
-.endif
 .if ${COMPILER_VERSION} >= 100000
 NO_WMISLEADING_INDENTATION=	-Wno-misleading-indentation
 .endif
-.endif
+.endif	# clang
 
 .if ${COMPILER_TYPE} == "gcc"
-.if ${COMPILER_VERSION} >= 40800
 # Catch-all for all the things that are in our tree, but for which we're
 # not yet ready for this compiler.
 NO_WUNUSED_BUT_SET_VARIABLE = -Wno-unused-but-set-variable
@@ -55,14 +50,15 @@ CWARNEXTRA?=	-Wno-error=address				\
 		-Wno-error=enum-compare				\
 		-Wno-error=inline				\
 		-Wno-error=maybe-uninitialized			\
+		-Wno-error=misleading-indentation		\
+		-Wno-error=nonnull-compare			\
 		-Wno-error=overflow				\
 		-Wno-error=sequence-point			\
-		-Wno-error=unused-but-set-variable
-.if ${COMPILER_VERSION} >= 60100
-CWARNEXTRA+=	-Wno-error=misleading-indentation		\
-		-Wno-error=nonnull-compare			\
 		-Wno-error=shift-overflow			\
-		-Wno-error=tautological-compare
+		-Wno-error=tautological-compare			\
+		-Wno-unused-but-set-variable
+.if ${COMPILER_VERSION} >= 70100
+CWARNEXTRA+=	-Wno-error=stringop-overflow
 .endif
 .if ${COMPILER_VERSION} >= 70200
 CWARNEXTRA+=	-Wno-error=memset-elt-size
@@ -70,14 +66,10 @@ CWARNEXTRA+=	-Wno-error=memset-elt-size
 .if ${COMPILER_VERSION} >= 80000
 CWARNEXTRA+=	-Wno-error=packed-not-aligned
 .endif
-.else
-# For gcc 4.2, eliminate the too-often-wrong warnings about uninitialized vars.
-CWARNEXTRA?=	-Wno-uninitialized
-# GCC 4.2 doesn't have -Wno-error=cast-qual, so just disable the warning for
-# the few files that are already known to generate cast-qual warnings.
-NO_WCAST_QUAL= -Wno-cast-qual
-.endif
+.if ${COMPILER_VERSION} >= 90100
+CWARNEXTRA+=	-Wno-address-of-packed-member
 .endif
+.endif	# gcc
 
 # This warning is utter nonsense
 CWARNFLAGS+=	-Wno-format-zero-length
@@ -86,7 +78,7 @@ CWARNFLAGS+=	-Wno-format-zero-length
 # to be disabled.  WARNING: format checking is disabled in this case.
 .if ${MK_FORMAT_EXTENSIONS} == "no"
 FORMAT_EXTENSIONS=	-Wno-format
-.elif ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 30600
+.elif ${COMPILER_TYPE} == "clang"
 FORMAT_EXTENSIONS=	-D__printf__=__freebsd_kprintf__
 .else
 FORMAT_EXTENSIONS=	-fformat-extensions
@@ -201,12 +193,7 @@ CFLAGS.gcc+=	-mno-spe
 # DDB happy. ELFv2, if available, has some other efficiency benefits.
 #
 .if ${MACHINE_ARCH} == "powerpc64"
-.if ${COMPILER_VERSION} >= 40900
-CFLAGS.gcc+=	-mabi=elfv2
-.else
-CFLAGS.gcc+=	-mcall-aixdesc
-.endif
-CFLAGS.clang+=	-mabi=elfv2
+CFLAGS+=	-mabi=elfv2
 .endif
 
 #
diff --git a/sys/conf/kern.post.mk b/sys/conf/kern.post.mk
index cce9fcfd1c6d..b24909642dfe 100644
--- a/sys/conf/kern.post.mk
+++ b/sys/conf/kern.post.mk
@@ -311,10 +311,7 @@ ${__obj}: ${OBJS_DEPEND_GUESS.${__obj}}
 
 .depend: .PRECIOUS ${SRCS}
 
-.if ${COMPILER_TYPE} == "clang" || \
-    (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 _MAP_DEBUG_PREFIX= yes
-.endif
 
 _ILINKS= machine
 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
diff --git a/sys/conf/kern.pre.mk b/sys/conf/kern.pre.mk
index 7f0099344d18..04f34b6e0c5c 100644
--- a/sys/conf/kern.pre.mk
+++ b/sys/conf/kern.pre.mk
@@ -93,11 +93,7 @@ CFLAGS.gcc+= -fms-extensions
 .if defined(CFLAGS_ARCH_PARAMS)
 CFLAGS.gcc+=${CFLAGS_ARCH_PARAMS}
 .endif
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000
-WERROR?=	-Wno-error
-.else
 WERROR?=	-Werror
-.endif
 # The following should be removed no earlier than LLVM11 being imported into the
 # tree, to ensure we don't regress the build.  LLVM11 and GCC10 will switch the
 # default over to -fno-common, making this redundant.
diff --git a/sys/conf/kmod.mk b/sys/conf/kmod.mk
index 610484ba7e36..3c63deb6ddd1 100644
--- a/sys/conf/kmod.mk
+++ b/sys/conf/kmod.mk
@@ -102,11 +102,7 @@ __KLD_SHARED=no
 .if !empty(CFLAGS:M-O[23s]) && empty(CFLAGS:M-fno-strict-aliasing)
 CFLAGS+=	-fno-strict-aliasing
 .endif
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000
-WERROR?=	-Wno-error
-.else
 WERROR?=	-Werror
-.endif
 
 LINUXKPI_GENSRCS+= \
 	bus_if.h \
@@ -171,11 +167,7 @@ CFLAGS+=	-fPIC
 # Temporary workaround for PR 196407, which contains the fascinating details.
 # Don't allow clang to use fpu instructions or registers in kernel modules.
 .if ${MACHINE_CPUARCH} == arm
-.if ${COMPILER_VERSION} < 30800
-CFLAGS.clang+=	-mllvm -arm-use-movt=0
-.else
 CFLAGS.clang+=	-mno-movt
-.endif
 CFLAGS.clang+=	-mfpu=none
 CFLAGS+=	-funwind-tables
 .endif
@@ -285,10 +277,7 @@ ${FULLPROG}: ${OBJS}
 	${OBJCOPY} --strip-debug ${.TARGET}
 .endif
 
-.if ${COMPILER_TYPE} == "clang" || \
-    (${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 60000)
 _MAP_DEBUG_PREFIX= yes
-.endif
 
 _ILINKS=machine
 .if ${MACHINE} != ${MACHINE_CPUARCH} && ${MACHINE} != "arm64"
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index f4b7d4f8a5bd..61603cf32ab4 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -684,10 +684,8 @@ _aac=		aac
 _aacraid=	aacraid
 _acpi=		acpi
 .if ${MK_CRYPT} != "no" || defined(ALL_MODULES)
-.if ${COMPILER_TYPE} != "gcc" || ${COMPILER_VERSION} > 40201
 _aesni=		aesni
 .endif
-.endif
 _amd_ecc_inject=amd_ecc_inject
 _amdsbwd=	amdsbwd
 _amdsmn=	amdsmn
diff --git a/usr.sbin/acpi/acpidb/Makefile b/usr.sbin/acpi/acpidb/Makefile
index 566794fa6f4b..5a6fceb2a4cb 100644
--- a/usr.sbin/acpi/acpidb/Makefile
+++ b/usr.sbin/acpi/acpidb/Makefile
@@ -87,6 +87,6 @@ LIBADD=	pthread
 # integer to pointer, which is a GNU extension.
 #
 # Turn off the warning, because this is in contributed code.
-.if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} >= 60000
+.if ${COMPILER_TYPE} == "clang"
 CWARNFLAGS+=	-Wno-null-pointer-arithmetic
 .endif
diff --git a/usr.sbin/trpt/Makefile b/usr.sbin/trpt/Makefile
index 4756cb1a0d03..33a3d1f81a7f 100644
--- a/usr.sbin/trpt/Makefile
+++ b/usr.sbin/trpt/Makefile
@@ -8,18 +8,12 @@ MAN=	trpt.8
 BINGRP=	kmem
 BINMODE= 2555
 
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} < 50000
-WARNS?=	4
-.endif
-
 .if ${MK_INET6_SUPPORT} != "no"
 CFLAGS+= -DINET6
 .endif
 
 .include <bsd.prog.mk>
 
-.if ${COMPILER_TYPE} != "gcc" || ${COMPILER_VERSION} >= 50000
 # Several included system headers tickle this warning in ways that are
 # difficult to work around in this program.
 CFLAGS+= -Wno-missing-variable-declarations
-.endif
diff --git a/usr.sbin/zic/zic/Makefile b/usr.sbin/zic/zic/Makefile
index 36cc79009b45..17ffb33a57e7 100644
--- a/usr.sbin/zic/zic/Makefile
+++ b/usr.sbin/zic/zic/Makefile
@@ -15,7 +15,7 @@ CFLAGS+= -I${.CURDIR:H} -I${SRCTOP}/contrib/tzcode/stdtime
 
 WARNS?=	2
 
-.if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 50300
+.if ${COMPILER_TYPE} == "gcc"
 CWARNFLAGS+=	-Wno-error=strict-overflow
 .endif
 


More information about the dev-commits-src-all mailing list