179 lines
7.5 KiB
C
179 lines
7.5 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2014 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <sys/utsname.h>
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#include "architecture.h"
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#include "macro.h"
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#include "string-table.h"
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#include "string-util.h"
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int uname_architecture(void) {
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/* Return a sanitized enum identifying the architecture we are
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* running on. This is based on uname(), and the user may
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* hence control what this returns by using
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* personality(). This puts the user in control on systems
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* that can run binaries of multiple architectures.
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*
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* We do not translate the string returned by uname()
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* 1:1. Instead we try to clean it up and break down the
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* confusion on x86 and arm in particular.
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*
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* We do not try to distinguish CPUs not CPU features, but
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* actual architectures, i.e. that have genuinely different
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* code. */
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static const struct {
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const char *machine;
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int arch;
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} arch_map[] = {
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#if defined(__x86_64__) || defined(__i386__)
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{ "x86_64", ARCHITECTURE_X86_64 },
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{ "i686", ARCHITECTURE_X86 },
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{ "i586", ARCHITECTURE_X86 },
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{ "i486", ARCHITECTURE_X86 },
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{ "i386", ARCHITECTURE_X86 },
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#elif defined(__powerpc__) || defined(__powerpc64__)
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{ "ppc64", ARCHITECTURE_PPC64 },
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{ "ppc64le", ARCHITECTURE_PPC64_LE },
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{ "ppc", ARCHITECTURE_PPC },
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{ "ppcle", ARCHITECTURE_PPC_LE },
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#elif defined(__ia64__)
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{ "ia64", ARCHITECTURE_IA64 },
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#elif defined(__hppa__) || defined(__hppa64__)
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{ "parisc64", ARCHITECTURE_PARISC64 },
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{ "parisc", ARCHITECTURE_PARISC },
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#elif defined(__s390__) || defined(__s390x__)
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{ "s390x", ARCHITECTURE_S390X },
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{ "s390", ARCHITECTURE_S390 },
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#elif defined(__sparc__) || defined(__sparc64__)
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{ "sparc64", ARCHITECTURE_SPARC64 },
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{ "sparc", ARCHITECTURE_SPARC },
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#elif defined(__mips__) || defined(__mips64__)
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{ "mips64", ARCHITECTURE_MIPS64 },
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{ "mips", ARCHITECTURE_MIPS },
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#elif defined(__alpha__)
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{ "alpha" , ARCHITECTURE_ALPHA },
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#elif defined(__arm__) || defined(__aarch64__)
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{ "aarch64", ARCHITECTURE_ARM64 },
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{ "aarch64_be", ARCHITECTURE_ARM64_BE },
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{ "armv4l", ARCHITECTURE_ARM },
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{ "armv4b", ARCHITECTURE_ARM_BE },
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{ "armv4tl", ARCHITECTURE_ARM },
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{ "armv4tb", ARCHITECTURE_ARM_BE },
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{ "armv5tl", ARCHITECTURE_ARM },
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{ "armv5tb", ARCHITECTURE_ARM_BE },
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{ "armv5tel", ARCHITECTURE_ARM },
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{ "armv5teb" , ARCHITECTURE_ARM_BE },
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{ "armv5tejl", ARCHITECTURE_ARM },
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{ "armv5tejb", ARCHITECTURE_ARM_BE },
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{ "armv6l", ARCHITECTURE_ARM },
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{ "armv6b", ARCHITECTURE_ARM_BE },
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{ "armv7l", ARCHITECTURE_ARM },
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{ "armv7b", ARCHITECTURE_ARM_BE },
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{ "armv7ml", ARCHITECTURE_ARM },
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{ "armv7mb", ARCHITECTURE_ARM_BE },
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{ "armv4l", ARCHITECTURE_ARM },
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{ "armv4b", ARCHITECTURE_ARM_BE },
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{ "armv4tl", ARCHITECTURE_ARM },
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{ "armv4tb", ARCHITECTURE_ARM_BE },
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{ "armv5tl", ARCHITECTURE_ARM },
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{ "armv5tb", ARCHITECTURE_ARM_BE },
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{ "armv5tel", ARCHITECTURE_ARM },
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{ "armv5teb", ARCHITECTURE_ARM_BE },
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{ "armv5tejl", ARCHITECTURE_ARM },
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{ "armv5tejb", ARCHITECTURE_ARM_BE },
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{ "armv6l", ARCHITECTURE_ARM },
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{ "armv6b", ARCHITECTURE_ARM_BE },
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{ "armv7l", ARCHITECTURE_ARM },
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{ "armv7b", ARCHITECTURE_ARM_BE },
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{ "armv7ml", ARCHITECTURE_ARM },
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{ "armv7mb", ARCHITECTURE_ARM_BE },
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{ "armv8l", ARCHITECTURE_ARM },
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{ "armv8b", ARCHITECTURE_ARM_BE },
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#elif defined(__sh__) || defined(__sh64__)
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{ "sh5", ARCHITECTURE_SH64 },
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{ "sh2", ARCHITECTURE_SH },
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{ "sh2a", ARCHITECTURE_SH },
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{ "sh3", ARCHITECTURE_SH },
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{ "sh4", ARCHITECTURE_SH },
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{ "sh4a", ARCHITECTURE_SH },
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#elif defined(__m68k__)
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{ "m68k", ARCHITECTURE_M68K },
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#elif defined(__tilegx__)
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{ "tilegx", ARCHITECTURE_TILEGX },
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#elif defined(__cris__)
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{ "crisv32", ARCHITECTURE_CRIS },
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#else
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#error "Please register your architecture here!"
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#endif
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};
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static int cached = _ARCHITECTURE_INVALID;
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struct utsname u;
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unsigned i;
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if (cached != _ARCHITECTURE_INVALID)
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return cached;
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assert_se(uname(&u) >= 0);
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for (i = 0; i < ELEMENTSOF(arch_map); i++)
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if (streq(arch_map[i].machine, u.machine))
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return cached = arch_map[i].arch;
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assert_not_reached("Couldn't identify architecture. You need to patch systemd.");
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return _ARCHITECTURE_INVALID;
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}
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static const char *const architecture_table[_ARCHITECTURE_MAX] = {
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[ARCHITECTURE_X86] = "x86",
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[ARCHITECTURE_X86_64] = "x86-64",
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[ARCHITECTURE_PPC] = "ppc",
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[ARCHITECTURE_PPC_LE] = "ppc-le",
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[ARCHITECTURE_PPC64] = "ppc64",
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[ARCHITECTURE_PPC64_LE] = "ppc64-le",
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[ARCHITECTURE_IA64] = "ia64",
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[ARCHITECTURE_PARISC] = "parisc",
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[ARCHITECTURE_PARISC64] = "parisc64",
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[ARCHITECTURE_S390] = "s390",
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[ARCHITECTURE_S390X] = "s390x",
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[ARCHITECTURE_SPARC] = "sparc",
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[ARCHITECTURE_SPARC64] = "sparc64",
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[ARCHITECTURE_MIPS] = "mips",
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[ARCHITECTURE_MIPS_LE] = "mips-le",
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[ARCHITECTURE_MIPS64] = "mips64",
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[ARCHITECTURE_MIPS64_LE] = "mips64-le",
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[ARCHITECTURE_ALPHA] = "alpha",
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[ARCHITECTURE_ARM] = "arm",
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[ARCHITECTURE_ARM_BE] = "arm-be",
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[ARCHITECTURE_ARM64] = "arm64",
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[ARCHITECTURE_ARM64_BE] = "arm64-be",
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[ARCHITECTURE_SH] = "sh",
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[ARCHITECTURE_SH64] = "sh64",
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[ARCHITECTURE_M68K] = "m68k",
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[ARCHITECTURE_TILEGX] = "tilegx",
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[ARCHITECTURE_CRIS] = "cris",
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};
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DEFINE_STRING_TABLE_LOOKUP(architecture, int);
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