Index: head/share/man/man7/arch.7 =================================================================== --- head/share/man/man7/arch.7 (revision 356110) +++ head/share/man/man7/arch.7 (revision 356111) @@ -1,532 +1,532 @@ .\" Copyright (c) 2016-2017 The FreeBSD Foundation. All rights reserved. .\" .\" This documentation was created by Ed Maste under sponsorship of .\" The FreeBSD Foundation. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" .\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" $FreeBSD$ .\" .Dd November 20, 2019 .Dt ARCH 7 .Os .Sh NAME .Nm arch .Nd Architecture-specific details .Sh DESCRIPTION Differences between CPU architectures and platforms supported by .Fx . .Ss Introduction This document is a quick reference of key ABI details of .Fx architecture ports. For full details consult the processor-specific ABI supplement documentation. .Pp If not explicitly mentioned, sizes are in bytes. The architecture details in this document apply to .Fx 11.0 and later, unless otherwise noted. .Pp .Fx uses a flat address space. Variables of types .Vt unsigned long , .Vt uintptr_t , and .Vt size_t and pointers all have the same representation. .Pp In order to maximize compatibility with future pointer integrity mechanisms, manipulations of pointers as integers should be performed via .Vt uintptr_t or .Vt intptr_t and no other types. In particular, .Vt long and .Vt ptrdiff_t should be avoided. .Pp On some architectures, e.g., .Dv sparc64 , .Dv powerpc and AIM variants of .Dv powerpc64 , the kernel uses a separate address space. On other architectures, kernel and a user mode process share a single address space. The kernel is located at the highest addresses. .Pp On each architecture, the main user mode thread's stack starts near the highest user address and grows down. .Pp .Fx architecture support varies by release. This table shows the first .Fx release to support each architecture, and, for discontinued architectures, the final release. .Pp .Bl -column -offset indent "Sy Architecture" "Sy Initial Release" "Sy Final Release" .It Sy Architecture Ta Sy Initial Release Ta Sy Final Release .It aarch64 Ta 11.0 .It alpha Ta 3.2 Ta 6.4 .It amd64 Ta 5.1 .It arm Ta 6.0 Ta 12.x .It armeb Ta 8.0 Ta 11.x .It armv6 Ta 10.0 .It armv7 Ta 12.0 .It ia64 Ta 5.0 Ta 10.4 .It i386 Ta 1.0 .It mips Ta 8.0 .It mipsel Ta 9.0 .It mipselhf Ta 12.0 .It mipshf Ta 12.0 .It mipsn32 Ta 9.0 .It mips64 Ta 9.0 .It mips64el Ta 9.0 .It mips64elhf Ta 12.0 .It mips64hf Ta 12.0 .It pc98 Ta 2.2 Ta 11.x .It powerpc Ta 6.0 .It powerpcspe Ta 12.0 .It powerpc64 Ta 6.0 .It riscv64 Ta 12.0 .It riscv64sf Ta 12.0 .It sparc64 Ta 5.0 Ta 12.x .El .Ss Type sizes All .Fx architectures use some variant of the ELF (see .Xr elf 5 ) .Sy Application Binary Interface (ABI) for the machine processor. All supported ABIs can be divided into two groups: .Bl -tag -width "Dv ILP32" .It Dv ILP32 .Vt int , .Vt long , .Vt void * types machine representations all have 4-byte size. .It Dv LP64 .Vt int type machine representation uses 4 bytes, while .Vt long and .Vt void * are 8 bytes. .El Compilers define the .Dv _LP64 symbol when compiling for an .Dv LP64 ABI. .Pp Some machines support more than one .Fx ABI. Typically these are 64-bit machines, where the .Dq native .Dv LP64 execution environment is accompanied by the .Dq legacy .Dv ILP32 environment, which was the historical 32-bit predecessor for 64-bit evolution. Examples are: .Bl -column -offset indent "Dv powerpc64" "Sy ILP32 counterpart" .It Sy LP64 Ta Sy ILP32 counterpart .It Dv amd64 Ta Dv i386 .It Dv powerpc64 Ta Dv powerpc .It Dv mips64* Ta Dv mips* .It Dv aarch64 Ta Dv armv6/armv7 .El .Dv aarch64 will support execution of .Dv armv6 or .Dv armv7 binaries if the CPU implements .Dv AArch32 execution state, however .Dv armv5 binaries aren't supported. .Pp On all supported architectures: .Bl -column -offset -indent "long long" "Size" .It Sy Type Ta Sy Size .It short Ta 2 .It int Ta 4 .It long Ta sizeof(void*) .It long long Ta 8 .It float Ta 4 .It double Ta 8 .El Integers are represented in two's complement. Alignment of integer and pointer types is natural, that is, the address of the variable must be congruent to zero modulo the type size. Most ILP32 ABIs, except .Dv arm , require only 4-byte alignment for 64-bit integers. .Pp Machine-dependent type sizes: .Bl -column -offset indent "Sy Architecture" "Sy void *" "Sy long double" "Sy time_t" .It Sy Architecture Ta Sy void * Ta Sy long double Ta Sy time_t .It aarch64 Ta 8 Ta 16 Ta 8 .It amd64 Ta 8 Ta 16 Ta 8 .It arm Ta 4 Ta 8 Ta 8 .It armv6 Ta 4 Ta 8 Ta 8 .It i386 Ta 4 Ta 12 Ta 4 .It mips Ta 4 Ta 8 Ta 8 .It mipsel Ta 4 Ta 8 Ta 8 .It mipselhf Ta 4 Ta 8 Ta 8 .It mipshf Ta 4 Ta 8 Ta 8 .It mipsn32 Ta 4 Ta 8 Ta 8 .It mips64 Ta 8 Ta 8 Ta 8 .It mips64el Ta 8 Ta 8 Ta 8 .It mips64elhf Ta 8 Ta 8 Ta 8 .It mips64hf Ta 8 Ta 8 Ta 8 .It powerpc Ta 4 Ta 8 Ta 8 .It powerpcspe Ta 4 Ta 8 Ta 8 .It powerpc64 Ta 8 Ta 8 Ta 8 .It riscv64 Ta 8 Ta 16 Ta 8 .It riscv64sf Ta 8 Ta 16 Ta 8 .It sparc64 Ta 8 Ta 16 Ta 8 .El .Pp .Sy time_t is 8 bytes on all supported architectures except i386. .Ss Endianness and Char Signedness .Bl -column -offset indent "Sy Architecture" "Sy Endianness" "Sy char Signedness" .It Sy Architecture Ta Sy Endianness Ta Sy char Signedness .It aarch64 Ta little Ta unsigned .It amd64 Ta little Ta signed .It arm Ta little Ta unsigned .It armv6 Ta little Ta unsigned .It armv7 Ta little Ta unsigned .It i386 Ta little Ta signed .It mips Ta big Ta signed .It mipsel Ta little Ta signed .It mipselhf Ta little Ta signed .It mipshf Ta big Ta signed .It mipsn32 Ta big Ta signed .It mips64 Ta big Ta signed .It mips64el Ta little Ta signed .It mips64elhf Ta little Ta signed .It mips64hf Ta big Ta signed .It powerpc Ta big Ta unsigned .It powerpcspe Ta big Ta unsigned .It powerpc64 Ta big Ta unsigned .It riscv64 Ta little Ta signed .It riscv64sf Ta little Ta signed .It sparc64 Ta big Ta signed .El .Ss Page Size .Bl -column -offset indent "Sy Architecture" "Sy Page Sizes" .It Sy Architecture Ta Sy Page Sizes .It aarch64 Ta 4K, 2M, 1G .It amd64 Ta 4K, 2M, 1G .It arm Ta 4K .It armv6 Ta 4K, 1M .It armv7 Ta 4K, 1M .It i386 Ta 4K, 2M (PAE), 4M .It mips Ta 4K .It mipsel Ta 4K .It mipselhf Ta 4K .It mipshf Ta 4K .It mipsn32 Ta 4K .It mips64 Ta 4K .It mips64el Ta 4K .It mips64elhf Ta 4K .It mips64hf Ta 4K .It powerpc Ta 4K .It powerpcspe Ta 4K .It powerpc64 Ta 4K .It riscv64 Ta 4K .It riscv64sf Ta 4K .It sparc64 Ta 8K .El .Ss Floating Point .Bl -column -offset indent "Sy Architecture" "Sy float, double" "Sy long double" .It Sy Architecture Ta Sy float, double Ta Sy long double .It aarch64 Ta hard Ta soft, quad precision .It amd64 Ta hard Ta hard, 80 bit .It arm Ta soft Ta soft, double precision .It armv6 Ta hard Ta hard, double precision .It armv7 Ta hard Ta hard, double precision .It i386 Ta hard Ta hard, 80 bit .It mips Ta soft Ta identical to double .It mipsel Ta soft Ta identical to double .It mipselhf Ta hard Ta identical to double .It mipshf Ta hard Ta identical to double .It mipsn32 Ta soft Ta identical to double .It mips64 Ta soft Ta identical to double .It mips64el Ta soft Ta identical to double .It mips64elhf Ta hard Ta identical to double .It mips64hf Ta hard Ta identical to double .It powerpc Ta hard Ta hard, double precision .It powerpcspe Ta hard Ta hard, double precision .It powerpc64 Ta hard Ta hard, double precision .It riscv64 Ta hard Ta hard, double precision .It riscv64sf Ta soft Ta soft, double precision .It sparc64 Ta hard Ta hard, quad precision .El .Ss Default Tool Chain .Fx uses a variety of tool chain components for the supported CPU architectures: .Xr clang 1 and .Xr ld.lld 1 provided by the base system, GNU .Xr gcc 1 and Binutils .Xr ld 1 , or an external toolchain compiler and linker provided by a port or package. This table shows the default tool chain for each architecture. .Bl -column -offset indent "Sy Architecture" "Sy Compiler" "Sy Linker" .It Sy Architecture Ta Sy Compiler Ta Sy Linker .It aarch64 Ta Clang Ta lld .It amd64 Ta Clang Ta lld .It arm Ta Clang Ta GNU ld 2.17.50 .It armv6 Ta Clang Ta lld .It armv7 Ta Clang Ta lld .It i386 Ta Clang Ta lld .It mips Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mipsel Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mipselhf Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mipshf Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mipsn32 Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mips64 Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mips64el Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mips64elhf Ta GCC 4.2.1 Ta GNU ld 2.17.50 .It mips64hf Ta GCC 4.2.1 Ta GNU ld 2.17.50 -.It powerpc Ta GCC 4.2.1 Ta GNU ld 2.17.50 -.It powerpcspe Ta GCC 4.2.1 Ta GNU ld 2.17.50 -.It powerpc64 Ta GCC 4.2.1 Ta GNU ld 2.17.50 +.It powerpc Ta Clang Ta GNU ld 2.17.50 +.It powerpcspe Ta Clang Ta GNU ld 2.17.50 +.It powerpc64 Ta Clang Ta lld .It riscv64 Ta GCC(1) Ta GNU ld(1) .It riscv64sf Ta GCC(1) Ta GNU ld(1) .It sparc64 Ta GCC 4.2.1 Ta GNU ld 2.17.50 .El .Pp (1) External toolchain provided by ports/packages. .Pp Note that GCC 4.2.1 is deprecated, and scheduled for removal on 2020-03-31. Any CPU architectures not migrated by then (to either base system Clang or external toolchain) may be removed from the tree after that date. Unless the make variable .Dv MAKE_OBSOLETE_GCC -is defined, make universe will not build mips, powerpc, nor sparc64 +is defined, make universe will not build mips or sparc64 architectures unless the xtoolchain binaries have been installed for the architecture. .Ss MACHINE_ARCH vs MACHINE_CPUARCH vs MACHINE .Dv MACHINE_CPUARCH should be preferred in Makefiles when the generic architecture is being tested. .Dv MACHINE_ARCH should be preferred when there is something specific to a particular type of architecture where there is a choice of many, or could be a choice of many. Use .Dv MACHINE when referring to the kernel, interfaces dependent on a specific type of kernel or similar things like boot sequences. .Bl -column -offset indent "Dv MACHINE" "Dv MACHINE_CPUARCH" "Dv MACHINE_ARCH" .It Dv MACHINE Ta Dv MACHINE_CPUARCH Ta Dv MACHINE_ARCH .It arm64 Ta aarch64 Ta aarch64 .It amd64 Ta amd64 Ta amd64 .It arm Ta arm Ta arm, armv6, armv7 .It i386 Ta i386 Ta i386 .It mips Ta mips Ta mips, mipsel, mips64, mips64el, mipshf, mipselhf, mips64elhf, mipsn32 .It powerpc Ta powerpc Ta powerpc, powerpcspe, powerpc64 .It riscv Ta riscv Ta riscv64, riscv64sf .It sparc64 Ta sparc64 Ta sparc64 .El .Ss Predefined Macros The compiler provides a number of predefined macros. Some of these provide architecture-specific details and are explained below. Other macros, including those required by the language standard, are not included here. .Pp The full set of predefined macros can be obtained with this command: .Bd -literal -offset indent cc -x c -dM -E /dev/null .Ed .Pp Common type size and endianness macros: .Bl -column -offset indent "BYTE_ORDER" "Sy Meaning" .It Sy Macro Ta Sy Meaning .It Dv __LP64__ Ta 64-bit (8-byte) long and pointer, 32-bit (4-byte) int .It Dv __ILP32__ Ta 32-bit (4-byte) int, long and pointer .It Dv BYTE_ORDER Ta Either Dv BIG_ENDIAN or Dv LITTLE_ENDIAN . .Dv PDP11_ENDIAN is not used on .Fx . .El .Pp Architecture-specific macros: .Bl -column -offset indent "Sy Architecture" "Sy Predefined macros" .It Sy Architecture Ta Sy Predefined macros .It aarch64 Ta Dv __aarch64__ .It amd64 Ta Dv __amd64__, Dv __x86_64__ .It arm Ta Dv __arm__ .It armv6 Ta Dv __arm__, Dv __ARM_ARCH >= 6 .It armv7 Ta Dv __arm__, Dv __ARM_ARCH >= 7 .It i386 Ta Dv __i386__ .It mips Ta Dv __mips__, Dv __MIPSEB__, Dv __mips_o32 .It mipsel Ta Dv __mips__, Dv __mips_o32 .It mipselhf Ta Dv __mips__, Dv __mips_o32 .It mipshf Ta Dv __mips__, Dv __MIPSEB__, Dv __mips_o32 .It mipsn32 Ta Dv __mips__, Dv __MIPSEB__, Dv __mips_n32 .It mips64 Ta Dv __mips__, Dv __MIPSEB__, Dv __mips_n64 .It mips64el Ta Dv __mips__, Dv __mips_n64 .It mips64elhf Ta Dv __mips__, Dv __mips_n64 .It mips64hf Ta Dv __mips__, Dv __MIPSEB__, Dv __mips_n64 .It powerpc Ta Dv __powerpc__ .It powerpcspe Ta Dv __powerpc__, Dv __SPE__ .It powerpc64 Ta Dv __powerpc__, Dv __powerpc64__ .It riscv64 Ta Dv __riscv, Dv __riscv_xlen == 64 .It riscv64sf Ta Dv __riscv, Dv __riscv_xlen == 64 .It sparc64 Ta Dv __sparc64__ .El .Pp Compilers may define additional variants of architecture-specific macros. The macros above are preferred for use in .Fx . .Ss Important Xr make 1 variables Most of the externally settable variables are defined in the .Xr build 7 man page. These variables are not otherwise documented and are used extensively in the build system. .Bl -column -offset indent "Sy Variable" "Sy Meaning and usage" .It Dv MACHINE Represent the hardware platform. This is the same as the native platform's .Xr uname 1 .Fl m output. It defines both the userland / kernel interface, as well as the bootloader / kernel interface. It should only be used in these contexts. Each CPU architecture may have multiple hardware platforms it supports where .Dv MACHINE differs among them. It is used to collect together all the files from .Xr config 8 to build the kernel. It is often the same as .Dv MACHINE_ARCH just as one CPU architecture can be implemented by many different hardware platforms, one hardware platform may support multiple CPU architecture family members, though with different binaries. For example, .Dv MACHINE of i386 supported the IBM-AT hardware platform while the .Dv MACHINE of pc98 supported the Japanese company NEC's PC-9801 and PC-9821 hardware platforms. Both of these hardware platforms supported only the .Dv MACHINE_ARCH of i386 where they shared a common ABI, except for certain kernel / userland interfaces relating to underlying hardware platform differences in bus architecture, device enumeration and boot interface. Generally, .Dv MACHINE should only be used in src/sys and src/stand or in system imagers or installers. .It Dv MACHINE_ARCH Represents the CPU processor architecture. This is the same as the native platforms .Xr uname 1 .Fl p output. It defines the CPU instruction family supported. It may also encode a variation in the byte ordering of multi-byte integers (endian). It may also encode a variation in the size of the integer or pointer. It may also encode a ISA revision. It may also encode hard versus soft floating point ABI and usage. It may also encode a variant ABI when the other factors do not uniquely define the ABI (e.g., MIPS' n32 ABI). It, along with .Dv MACHINE , defines the ABI used by the system. For example, the MIPS CPU processor family supports 9 different combinations encoding pointer size, endian and hard versus soft float (for 8 combinations) as well as N32 (which only ever had one variation of all these). Generally, the plain CPU name specifies the most common (or at least first) variant of the CPU. This is why mips and mips64 imply 'big endian' while 'arm' and 'armv7' imply little endian. If we ever were to support the so-called x32 ABI (using 32-bit pointers on the amd64 architecture), it would most likely be encoded as amd64-x32. It is unfortunate that amd64 specifies the 64-bit evolution of the x86 platform (it matches the 'first rule') as everybody else uses x86_64. There is no standard name for the processor: each OS selects its own conventions. .It Dv MACHINE_CPUARCH Represents the source location for a given .Dv MACHINE_ARCH . It is generally the common prefix for all the MACHINE_ARCH that share the same implementation, though 'riscv' breaks this rule. For example, .Dv MACHINE_CPUARCH is defined to be mips for all the flavors of mips that we support since we support them all with a shared set of sources. While amd64 and i386 are closely related, MACHINE_CPUARCH is not x86 for them. The FreeBSD source base supports amd64 and i386 with two distinct source bases living in subdirectories named amd64 and i386 (though behind the scenes there's some sharing that fits into this framework). .It Dv CPUTYPE Sets the flavor of .Dv MACHINE_ARCH to build. It is used to optimize the build for a specific CPU / core that the binaries run on. Generally, this does not change the ABI, though it can be a fine line between optimization for specific cases. .It Dv TARGET Used to set .Dv MACHINE in the top level Makefile for cross building. Unused outside of that scope. It is not passed down to the rest of the build. Makefiles outside of the top level should not use it at all (though some have their own private copy for hysterical raisons). .It Dv TARGET_ARCH Used to set .Dv MACHINE_ARCH by the top level Makefile for cross building. Like .Dv TARGET , it is unused outside of that scope. .El .Sh SEE ALSO .Xr src.conf 5 , .Xr build 7 .Sh HISTORY An .Nm manual page appeared in .Fx 11.1 . Index: head/share/mk/src.opts.mk =================================================================== --- head/share/mk/src.opts.mk (revision 356110) +++ head/share/mk/src.opts.mk (revision 356111) @@ -1,608 +1,609 @@ # $FreeBSD$ # # Option file for FreeBSD /usr/src builds. # # Users define WITH_FOO and WITHOUT_FOO on the command line or in /etc/src.conf # and /etc/make.conf files. These translate in the build system to MK_FOO={yes,no} # with sensible (usually) defaults. # # Makefiles must include bsd.opts.mk after defining specific MK_FOO options that # are applicable for that Makefile (typically there are none, but sometimes there # are exceptions). Recursive makes usually add MK_FOO=no for options that they wish # to omit from that make. # # Makefiles must include bsd.mkopt.mk before they test the value of any MK_FOO # variable. # # Makefiles may also assume that this file is included by src.opts.mk should it # need variables defined there prior to the end of the Makefile where # bsd.{subdir,lib.bin}.mk is traditionally included. # # The old-style YES_FOO and NO_FOO are being phased out. No new instances of them # should be added. Old instances should be removed since they were just to # bridge the gap between FreeBSD 4 and FreeBSD 5. # # Makefiles should never test WITH_FOO or WITHOUT_FOO directly (although an # exception is made for _WITHOUT_SRCONF which turns off this mechanism # completely inside bsd.*.mk files). # .if !target(____) ____: .include # # Define MK_* variables (which are either "yes" or "no") for users # to set via WITH_*/WITHOUT_* in /etc/src.conf and override in the # make(1) environment. # These should be tested with `== "no"' or `!= "no"' in makefiles. # The NO_* variables should only be set by makefiles for variables # that haven't been converted over. # # These options are used by the src builds. Those listed in # __DEFAULT_YES_OPTIONS default to 'yes' and will build unless turned # off. __DEFAULT_NO_OPTIONS will default to 'no' and won't build # unless turned on. Any options listed in 'BROKEN_OPTIONS' will be # hard-wired to 'no'. "Broken" here means not working or # not-appropriate and/or not supported. It doesn't imply something is # wrong with the code. There's not a single good word for this, so # BROKEN was selected as the least imperfect one considered at the # time. Options are added to BROKEN_OPTIONS list on a per-arch basis. # At this time, there's no provision for mutually incompatible options. __DEFAULT_YES_OPTIONS = \ ACCT \ ACPI \ APM \ AT \ ATM \ AUDIT \ AUTHPF \ AUTOFS \ BHYVE \ BINUTILS \ BINUTILS_BOOTSTRAP \ BLACKLIST \ BLUETOOTH \ BOOT \ BOOTPARAMD \ BOOTPD \ BSD_CPIO \ BSD_CRTBEGIN \ BSDINSTALL \ BSNMP \ BZIP2 \ CALENDAR \ CAPSICUM \ CAROOT \ CASPER \ CCD \ CDDL \ CPP \ CROSS_COMPILER \ CRYPT \ CUSE \ CXX \ CXGBETOOL \ DIALOG \ DICT \ DMAGENT \ DYNAMICROOT \ EE \ EFI \ ELFTOOLCHAIN_BOOTSTRAP \ EXAMPLES \ FDT \ FILE \ FINGER \ FLOPPY \ FMTREE \ FORTH \ FP_LIBC \ FREEBSD_UPDATE \ FTP \ GAMES \ GCOV \ GDB \ GNU_DIFF \ GNU_GREP \ GPIO \ HAST \ HTML \ HYPERV \ ICONV \ INET \ INET6 \ INETD \ IPFILTER \ IPFW \ ISCSI \ JAIL \ KDUMP \ KVM \ LDNS \ LDNS_UTILS \ LEGACY_CONSOLE \ LIBPTHREAD \ LIBTHR \ LLVM_COV \ LLVM_TARGET_ALL \ LOADER_GELI \ LOADER_LUA \ LOADER_OFW \ LOADER_UBOOT \ LOCALES \ LOCATE \ LPR \ LS_COLORS \ LZMA_SUPPORT \ MAIL \ MAILWRAPPER \ MAKE \ MLX5TOOL \ NDIS \ NETCAT \ NETGRAPH \ NLS_CATALOGS \ NS_CACHING \ NTP \ NVME \ OFED \ OPENSSL \ PAM \ PF \ PKGBOOTSTRAP \ PMC \ PORTSNAP \ PPP \ QUOTAS \ RADIUS_SUPPORT \ RBOOTD \ RESCUE \ ROUTED \ SENDMAIL \ SERVICESDB \ SETUID_LOGIN \ SHARED_TOOLCHAIN \ SHAREDOCS \ SOURCELESS \ SOURCELESS_HOST \ SOURCELESS_UCODE \ STATS \ SVNLITE \ SYSCONS \ SYSTEM_COMPILER \ SYSTEM_LINKER \ TALK \ TCP_WRAPPERS \ TCSH \ TELNET \ TEXTPROC \ TFTP \ UNBOUND \ USB \ UTMPX \ VI \ VT \ WIRELESS \ WPA_SUPPLICANT_EAPOL \ ZFS \ LOADER_ZFS \ ZONEINFO __DEFAULT_NO_OPTIONS = \ AMD \ BEARSSL \ BSD_GREP \ CLANG_EXTRAS \ DTRACE_TESTS \ EXPERIMENTAL \ GNU_GREP_COMPAT \ HESIOD \ HTTPD \ LIBSOFT \ LOADER_FIREWIRE \ LOADER_FORCE_LE \ LOADER_VERBOSE \ LOADER_VERIEXEC_PASS_MANIFEST \ OFED_EXTRA \ OPENLDAP \ REPRODUCIBLE_BUILD \ RPCBIND_WARMSTART_SUPPORT \ SORT_THREADS \ SVN \ ZONEINFO_LEAPSECONDS_SUPPORT \ ZONEINFO_OLD_TIMEZONES_SUPPORT \ # LEFT/RIGHT. Left options which default to "yes" unless their corresponding # RIGHT option is disabled. __DEFAULT_DEPENDENT_OPTIONS= \ CLANG_FULL/CLANG \ LOADER_VERIEXEC/BEARSSL \ LOADER_EFI_SECUREBOOT/LOADER_VERIEXEC \ VERIEXEC/BEARSSL \ # MK_*_SUPPORT options which default to "yes" unless their corresponding # MK_* variable is set to "no". # .for var in \ BLACKLIST \ BZIP2 \ INET \ INET6 \ KERBEROS \ KVM \ NETGRAPH \ PAM \ TESTS \ WIRELESS __DEFAULT_DEPENDENT_OPTIONS+= ${var}_SUPPORT/${var} .endfor # # Default behaviour of some options depends on the architecture. Unfortunately # this means that we have to test TARGET_ARCH (the buildworld case) as well # as MACHINE_ARCH (the non-buildworld case). Normally TARGET_ARCH is not # used at all in bsd.*.mk, but we have to make an exception here if we want # to allow defaults for some things like clang to vary by target architecture. # Additional, per-target behavior should be rarely added only after much # gnashing of teeth and grinding of gears. # .if defined(TARGET_ARCH) __T=${TARGET_ARCH} .else __T=${MACHINE_ARCH} .endif .if defined(TARGET) __TT=${TARGET} .else __TT=${MACHINE} .endif # Default GOOGLETEST to off for MIPS while LLVM PR 43263 is active. Part # of the fusefs tests trigger excessively long compile times. It does # eventually succeed, but this shouldn't be forced on those building by default. .if ${__TT} == "mips" __DEFAULT_NO_OPTIONS+= GOOGLETEST .else __DEFAULT_YES_OPTIONS+= GOOGLETEST .endif # All supported backends for LLVM_TARGET_XXX __LLVM_TARGETS= \ aarch64 \ arm \ mips \ powerpc \ riscv \ sparc \ x86 __LLVM_TARGET_FILT= C/(amd64|i386)/x86/:S/sparc64/sparc/:S/arm64/aarch64/:S/powerpc64/powerpc/ .for __llt in ${__LLVM_TARGETS} # Default enable the given TARGET's LLVM_TARGET support .if ${__TT:${__LLVM_TARGET_FILT}} == ${__llt} __DEFAULT_YES_OPTIONS+= LLVM_TARGET_${__llt:${__LLVM_TARGET_FILT}:tu} # Disable other targets for arm, to work around "relocation truncated # to fit" errors with BFD ld, since libllvm.a will get too large to link. .elif ${__T} == "arm" __DEFAULT_NO_OPTIONS+=LLVM_TARGET_${__llt:tu} # aarch64 needs arm for -m32 support. .elif ${__TT} == "arm64" && ${__llt} == "arm" __DEFAULT_DEPENDENT_OPTIONS+= LLVM_TARGET_ARM/LLVM_TARGET_AARCH64 # Default the rest of the LLVM_TARGETs to the value of MK_LLVM_TARGET_ALL. .else __DEFAULT_DEPENDENT_OPTIONS+= LLVM_TARGET_${__llt:${__LLVM_TARGET_FILT}:tu}/LLVM_TARGET_ALL .endif .endfor __DEFAULT_NO_OPTIONS+=LLVM_TARGET_BPF .include # If the compiler is not C++11 capable, disable Clang and use GCC instead. # This means that architectures that have GCC 4.2 as default can not # build Clang without using an external compiler. .if ${COMPILER_FEATURES:Mc++11} && (${__T} == "aarch64" || \ - ${__T} == "amd64" || ${__TT} == "arm" || ${__T} == "i386") + ${__T} == "amd64" || ${__TT} == "arm" || ${__T} == "i386" || \ + ${__TT} == "powerpc") # Clang is enabled, and will be installed as the default /usr/bin/cc. __DEFAULT_YES_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_IS_CC LLD __DEFAULT_NO_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX GPL_DTC .elif ${COMPILER_FEATURES:Mc++11} && ${__T} != "sparc64" # If an external compiler that supports C++11 is used as ${CC} and Clang # supports the target, then Clang is enabled but GCC is installed as the # default /usr/bin/cc. __DEFAULT_YES_OPTIONS+=CLANG GCC GCC_BOOTSTRAP GNUCXX GPL_DTC LLD __DEFAULT_NO_OPTIONS+=CLANG_BOOTSTRAP CLANG_IS_CC .else # Everything else disables Clang, and uses GCC instead. __DEFAULT_YES_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX GPL_DTC __DEFAULT_NO_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_IS_CC LLD .endif # In-tree binutils/gcc are older versions without modern architecture support. .if ${__T} == "aarch64" || ${__T:Mriscv*} != "" BROKEN_OPTIONS+=BINUTILS BINUTILS_BOOTSTRAP GCC GCC_BOOTSTRAP GDB .endif .if ${__T:Mriscv*} != "" BROKEN_OPTIONS+=OFED .endif .if ${__T} == "aarch64" || ${__T} == "amd64" || ${__T} == "i386" || \ - ${__T:Mriscv*} != "" || ${__TT} == "mips" + ${__TT} == "powerpc" || ${__T:Mriscv*} != "" || ${__TT} == "mips" __DEFAULT_YES_OPTIONS+=LLVM_LIBUNWIND .else __DEFAULT_NO_OPTIONS+=LLVM_LIBUNWIND .endif .if ${__T} == "aarch64" || ${__T} == "amd64" || ${__T} == "armv6" || \ - ${__T} == "armv7" || ${__T} == "i386" + ${__T} == "armv7" || ${__T} == "i386" || ${__T} == "powerpc64" __DEFAULT_YES_OPTIONS+=LLD_BOOTSTRAP LLD_IS_LD .else __DEFAULT_NO_OPTIONS+=LLD_BOOTSTRAP LLD_IS_LD .endif .if ${__T} == "aarch64" || ${__T} == "amd64" || ${__T} == "i386" __DEFAULT_YES_OPTIONS+=LLDB .else __DEFAULT_NO_OPTIONS+=LLDB .endif # LLVM lacks support for FreeBSD 64-bit atomic operations for ARMv4/ARMv5 .if ${__T} == "arm" BROKEN_OPTIONS+=LLDB .endif # GDB in base is generally less functional than GDB in ports. Ports GDB # sparc64 kernel support has not been tested. .if ${__T} == "sparc64" __DEFAULT_NO_OPTIONS+=GDB_LIBEXEC .else __DEFAULT_YES_OPTIONS+=GDB_LIBEXEC .endif # LIB32 is supported on amd64, mips64, and powerpc64 .if (${__T} == "amd64" || ${__T:Mmips64*} || ${__T} == "powerpc64") __DEFAULT_YES_OPTIONS+=LIB32 .else BROKEN_OPTIONS+=LIB32 .endif # Only doing soft float API stuff on armv6 and armv7 .if ${__T} != "armv6" && ${__T} != "armv7" BROKEN_OPTIONS+=LIBSOFT .endif .if ${__T:Mmips*} BROKEN_OPTIONS+=SSP .endif # EFI doesn't exist on mips, powerpc, sparc or riscv. .if ${__T:Mmips*} || ${__T:Mpowerpc*} || ${__T:Msparc64} || ${__T:Mriscv*} BROKEN_OPTIONS+=EFI .endif # OFW is only for powerpc and sparc64, exclude others .if ${__T:Mpowerpc*} == "" && ${__T:Msparc64} == "" BROKEN_OPTIONS+=LOADER_OFW .endif # UBOOT is only for arm, mips and powerpc, exclude others .if ${__T:Marm*} == "" && ${__T:Mmips*} == "" && ${__T:Mpowerpc*} == "" BROKEN_OPTIONS+=LOADER_UBOOT .endif # GELI and Lua in loader currently cause boot failures on sparc64 and powerpc. # Further debugging is required -- probably they are just broken on big # endian systems generically (they jump to null pointers or try to read # crazy high addresses, which is typical of endianness problems). .if ${__T} == "sparc64" || ${__T:Mpowerpc*} BROKEN_OPTIONS+=LOADER_GELI LOADER_LUA .endif .if ${__T:Mmips64*} # profiling won't work on MIPS64 because there is only assembly for o32 BROKEN_OPTIONS+=PROFILE .endif .if ${__T} != "aarch64" && ${__T} != "amd64" && ${__T} != "i386" && \ ${__T} != "powerpc64" && ${__T} != "sparc64" BROKEN_OPTIONS+=CXGBETOOL BROKEN_OPTIONS+=MLX5TOOL .endif # HyperV is currently x86-only .if ${__T} != "amd64" && ${__T} != "i386" BROKEN_OPTIONS+=HYPERV .endif # NVME is only aarch64, x86 and powerpc64 .if ${__T} != "aarch64" && ${__T} != "amd64" && ${__T} != "i386" && \ ${__T} != "powerpc64" BROKEN_OPTIONS+=NVME .endif .if ${__T:Msparc64} # Sparc64 need extra crt*.o files - PR 239851 BROKEN_OPTIONS+=BSD_CRTBEGIN # PR 233405 BROKEN_OPTIONS+=LLVM_LIBUNWIND .endif .if ${COMPILER_FEATURES:Mc++11} && \ (${__T} == "amd64" || ${__T} == "i386" || ${__T} == "powerpc64") __DEFAULT_YES_OPTIONS+=OPENMP .else __DEFAULT_NO_OPTIONS+=OPENMP .endif .include # # MK_* options that default to "yes" if the compiler is a C++11 compiler. # .for var in \ LIBCPLUSPLUS .if !defined(MK_${var}) .if ${COMPILER_FEATURES:Mc++11} .if defined(WITHOUT_${var}) MK_${var}:= no .else MK_${var}:= yes .endif .else .if defined(WITH_${var}) MK_${var}:= yes .else MK_${var}:= no .endif .endif .endif .endfor # # Force some options off if their dependencies are off. # Order is somewhat important. # .if !${COMPILER_FEATURES:Mc++11} MK_GOOGLETEST:= no MK_LLVM_LIBUNWIND:= no .endif .if ${MK_CAPSICUM} == "no" MK_CASPER:= no .endif .if ${MK_LIBPTHREAD} == "no" MK_LIBTHR:= no .endif .if ${MK_SOURCELESS} == "no" MK_SOURCELESS_HOST:= no MK_SOURCELESS_UCODE:= no .endif .if ${MK_CDDL} == "no" MK_ZFS:= no MK_LOADER_ZFS:= no MK_CTF:= no .endif .if ${MK_CRYPT} == "no" MK_OPENSSL:= no MK_OPENSSH:= no MK_KERBEROS:= no .endif .if ${MK_CXX} == "no" MK_CLANG:= no MK_GNUCXX:= no MK_TESTS:= no .endif .if ${MK_DIALOG} == "no" MK_BSDINSTALL:= no .endif .if ${MK_MAIL} == "no" MK_MAILWRAPPER:= no MK_SENDMAIL:= no MK_DMAGENT:= no .endif .if ${MK_NETGRAPH} == "no" MK_ATM:= no MK_BLUETOOTH:= no .endif .if ${MK_NLS} == "no" MK_NLS_CATALOGS:= no .endif .if ${MK_OPENSSL} == "no" MK_OPENSSH:= no MK_KERBEROS:= no MK_LDNS:= no .endif .if ${MK_LDNS} == "no" MK_LDNS_UTILS:= no MK_UNBOUND:= no .endif .if ${MK_PF} == "no" MK_AUTHPF:= no .endif .if ${MK_OFED} == "no" MK_OFED_EXTRA:= no .endif .if ${MK_PORTSNAP} == "no" # freebsd-update depends on phttpget from portsnap MK_FREEBSD_UPDATE:= no .endif .if ${MK_TESTS} == "no" MK_DTRACE_TESTS:= no .endif .if ${MK_TESTS_SUPPORT} == "no" MK_GOOGLETEST:= no .endif .if ${MK_ZONEINFO} == "no" MK_ZONEINFO_LEAPSECONDS_SUPPORT:= no MK_ZONEINFO_OLD_TIMEZONES_SUPPORT:= no .endif .if ${MK_CROSS_COMPILER} == "no" MK_BINUTILS_BOOTSTRAP:= no MK_CLANG_BOOTSTRAP:= no MK_ELFTOOLCHAIN_BOOTSTRAP:= no MK_GCC_BOOTSTRAP:= no MK_LLD_BOOTSTRAP:= no .endif .if ${MK_TOOLCHAIN} == "no" MK_BINUTILS:= no MK_CLANG:= no MK_GCC:= no MK_GDB:= no MK_INCLUDES:= no MK_LLD:= no MK_LLDB:= no .endif .if ${MK_CLANG} == "no" MK_CLANG_EXTRAS:= no MK_CLANG_FULL:= no MK_LLVM_COV:= no .endif .if ${MK_LOADER_VERIEXEC} == "no" MK_LOADER_VERIEXEC_PASS_MANIFEST := no .endif # # MK_* options whose default value depends on another option. # .for vv in \ GSSAPI/KERBEROS \ MAN_UTILS/MAN .if defined(WITH_${vv:H}) MK_${vv:H}:= yes .elif defined(WITHOUT_${vv:H}) MK_${vv:H}:= no .else MK_${vv:H}:= ${MK_${vv:T}} .endif .endfor # # Set defaults for the MK_*_SUPPORT variables. # .if !${COMPILER_FEATURES:Mc++11} MK_LLDB:= no .endif # gcc 4.8 and newer supports libc++, so suppress gnuc++ in that case. # while in theory we could build it with that, we don't want to do # that since it creates too much confusion for too little gain. # XXX: This is incomplete and needs X_COMPILER_TYPE/VERSION checks too # to prevent Makefile.inc1 from bootstrapping unneeded dependencies # and to support 'make delete-old' when supplying an external toolchain. .if ${COMPILER_TYPE} == "gcc" && ${COMPILER_VERSION} >= 40800 MK_GNUCXX:=no MK_GCC:=no .endif .endif # !target(____)