| /* 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); |