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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <sys/utsname.h>
#include "architecture.h"
#include "macro.h"
#include "string-table.h"
#include "string-util.h"
Architecture uname_architecture(void) {
/* Return a sanitized enum identifying the architecture we are running on. This
* is based on uname(), and the user may hence control what this returns by using
* personality(). This puts the user in control on systems that can run binaries
* of multiple architectures.
*
* We do not translate the string returned by uname() 1:1. Instead we try to
* clean it up and break down the confusion on x86 and arm in particular.
*
* We try to distinguish CPUs, not CPU features, i.e. actual architectures that
* have genuinely different code. */
static const struct {
const char *machine;
Architecture arch;
} arch_map[] = {
#if defined(__aarch64__) || defined(__arm__)
{ "aarch64", ARCHITECTURE_ARM64 },
{ "aarch64_be", ARCHITECTURE_ARM64_BE },
{ "armv8l", ARCHITECTURE_ARM },
{ "armv8b", ARCHITECTURE_ARM_BE },
{ "armv7ml", ARCHITECTURE_ARM },
{ "armv7mb", ARCHITECTURE_ARM_BE },
{ "armv7l", ARCHITECTURE_ARM },
{ "armv7b", ARCHITECTURE_ARM_BE },
{ "armv6l", ARCHITECTURE_ARM },
{ "armv6b", ARCHITECTURE_ARM_BE },
{ "armv5tl", ARCHITECTURE_ARM },
{ "armv5tel", ARCHITECTURE_ARM },
{ "armv5tejl", ARCHITECTURE_ARM },
{ "armv5tejb", ARCHITECTURE_ARM_BE },
{ "armv5teb", ARCHITECTURE_ARM_BE },
{ "armv5tb", ARCHITECTURE_ARM_BE },
{ "armv4tl", ARCHITECTURE_ARM },
{ "armv4tb", ARCHITECTURE_ARM_BE },
{ "armv4l", ARCHITECTURE_ARM },
{ "armv4b", ARCHITECTURE_ARM_BE },
#elif defined(__alpha__)
{ "alpha" , ARCHITECTURE_ALPHA },
#elif defined(__arc__)
{ "arc", ARCHITECTURE_ARC },
{ "arceb", ARCHITECTURE_ARC_BE },
#elif defined(__cris__)
{ "crisv32", ARCHITECTURE_CRIS },
#elif defined(__i386__) || defined(__x86_64__)
{ "x86_64", ARCHITECTURE_X86_64 },
{ "i686", ARCHITECTURE_X86 },
{ "i586", ARCHITECTURE_X86 },
{ "i486", ARCHITECTURE_X86 },
{ "i386", ARCHITECTURE_X86 },
#elif defined(__ia64__)
{ "ia64", ARCHITECTURE_IA64 },
#elif defined(__hppa__) || defined(__hppa64__)
{ "parisc64", ARCHITECTURE_PARISC64 },
{ "parisc", ARCHITECTURE_PARISC },
#elif defined(__loongarch64)
{ "loongarch64", ARCHITECTURE_LOONGARCH64 },
#elif defined(__m68k__)
{ "m68k", ARCHITECTURE_M68K },
#elif defined(__mips__) || defined(__mips64__)
{ "mips64", ARCHITECTURE_MIPS64 },
{ "mips", ARCHITECTURE_MIPS },
#elif defined(__nios2__)
{ "nios2", ARCHITECTURE_NIOS2 },
#elif defined(__powerpc__) || defined(__powerpc64__)
{ "ppc64le", ARCHITECTURE_PPC64_LE },
{ "ppc64", ARCHITECTURE_PPC64 },
{ "ppcle", ARCHITECTURE_PPC_LE },
{ "ppc", ARCHITECTURE_PPC },
#elif defined(__riscv)
{ "riscv64", ARCHITECTURE_RISCV64 },
{ "riscv32", ARCHITECTURE_RISCV32 },
# if __SIZEOF_POINTER__ == 4
{ "riscv", ARCHITECTURE_RISCV32 },
# elif __SIZEOF_POINTER__ == 8
{ "riscv", ARCHITECTURE_RISCV64 },
# endif
#elif defined(__s390__) || defined(__s390x__)
{ "s390x", ARCHITECTURE_S390X },
{ "s390", ARCHITECTURE_S390 },
#elif defined(__sh__) || defined(__sh64__)
{ "sh5", ARCHITECTURE_SH64 },
{ "sh4a", ARCHITECTURE_SH },
{ "sh4", ARCHITECTURE_SH },
{ "sh3", ARCHITECTURE_SH },
{ "sh2a", ARCHITECTURE_SH },
{ "sh2", ARCHITECTURE_SH },
#elif defined(__sparc__)
{ "sparc64", ARCHITECTURE_SPARC64 },
{ "sparc", ARCHITECTURE_SPARC },
#elif defined(__tilegx__)
{ "tilegx", ARCHITECTURE_TILEGX },
#else
# error "Please register your architecture here!"
#endif
};
static Architecture cached = _ARCHITECTURE_INVALID;
struct utsname u;
if (cached != _ARCHITECTURE_INVALID)
return cached;
assert_se(uname(&u) >= 0);
for (size_t i = 0; i < ELEMENTSOF(arch_map); i++)
if (streq(arch_map[i].machine, u.machine))
return cached = arch_map[i].arch;
assert_not_reached();
return _ARCHITECTURE_INVALID;
}
/* Maintain same order as in the table above. */
static const char *const architecture_table[_ARCHITECTURE_MAX] = {
[ARCHITECTURE_ARM64] = "arm64",
[ARCHITECTURE_ARM64_BE] = "arm64-be",
[ARCHITECTURE_ARM] = "arm",
[ARCHITECTURE_ARM_BE] = "arm-be",
[ARCHITECTURE_ALPHA] = "alpha",
[ARCHITECTURE_ARC] = "arc",
[ARCHITECTURE_ARC_BE] = "arc-be",
[ARCHITECTURE_CRIS] = "cris",
[ARCHITECTURE_X86_64] = "x86-64",
[ARCHITECTURE_X86] = "x86",
[ARCHITECTURE_IA64] = "ia64",
[ARCHITECTURE_LOONGARCH64] = "loongarch64",
[ARCHITECTURE_M68K] = "m68k",
[ARCHITECTURE_MIPS64_LE] = "mips64-le",
[ARCHITECTURE_MIPS64] = "mips64",
[ARCHITECTURE_MIPS_LE] = "mips-le",
[ARCHITECTURE_MIPS] = "mips",
[ARCHITECTURE_NIOS2] = "nios2",
[ARCHITECTURE_PARISC64] = "parisc64",
[ARCHITECTURE_PARISC] = "parisc",
[ARCHITECTURE_PPC64_LE] = "ppc64-le",
[ARCHITECTURE_PPC64] = "ppc64",
[ARCHITECTURE_PPC] = "ppc",
[ARCHITECTURE_PPC_LE] = "ppc-le",
[ARCHITECTURE_RISCV32] = "riscv32",
[ARCHITECTURE_RISCV64] = "riscv64",
[ARCHITECTURE_S390X] = "s390x",
[ARCHITECTURE_S390] = "s390",
[ARCHITECTURE_SH64] = "sh64",
[ARCHITECTURE_SH] = "sh",
[ARCHITECTURE_SPARC64] = "sparc64",
[ARCHITECTURE_SPARC] = "sparc",
[ARCHITECTURE_TILEGX] = "tilegx",
};
DEFINE_STRING_TABLE_LOOKUP(architecture, Architecture);
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