0c69794138
These lines are generally out-of-date, incomplete and unnecessary. With SPDX and git repository much more accurate and fine grained information about licensing and authorship is available, hence let's drop the per-file copyright notice. Of course, removing copyright lines of others is problematic, hence this commit only removes my own lines and leaves all others untouched. It might be nicer if sooner or later those could go away too, making git the only and accurate source of authorship information.
179 lines
7.5 KiB
C
179 lines
7.5 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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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__)
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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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#elif defined(__nios2__)
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{ "nios2", ARCHITECTURE_NIOS2 },
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#elif defined(__riscv__) || defined(__riscv)
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/* __riscv__ is obsolete, remove in 2018 */
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{ "riscv32", ARCHITECTURE_RISCV32 },
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{ "riscv64", ARCHITECTURE_RISCV64 },
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# if __SIZEOF_POINTER__ == 4
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{ "riscv", ARCHITECTURE_RISCV32 },
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# elif __SIZEOF_POINTER__ == 8
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{ "riscv", ARCHITECTURE_RISCV64 },
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# endif
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#elif defined(__arc__)
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{ "arc", ARCHITECTURE_ARC },
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{ "arceb", ARCHITECTURE_ARC_BE },
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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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[ARCHITECTURE_NIOS2] = "nios2",
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[ARCHITECTURE_RISCV32] = "riscv32",
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[ARCHITECTURE_RISCV64] = "riscv64",
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[ARCHITECTURE_ARC] = "arc",
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[ARCHITECTURE_ARC_BE] = "arc-be",
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};
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DEFINE_STRING_TABLE_LOOKUP(architecture, int);
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