[thirdparty/systemd.git] / src / basic / architecture.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once

#include <endian.h>

#include "forward.h"

/* A cleaned up architecture definition. We don't want to get lost in
 * processor features, models, generations or even ABIs. Hence we
 * focus on general family, and distinguish word width and endianness. */

typedef enum Architecture {
        ARCHITECTURE_ALPHA,
        ARCHITECTURE_ARC,
        ARCHITECTURE_ARC_BE,
        ARCHITECTURE_ARM,
        ARCHITECTURE_ARM64,
        ARCHITECTURE_ARM64_BE,
        ARCHITECTURE_ARM_BE,
        ARCHITECTURE_CRIS,
        ARCHITECTURE_IA64,
        ARCHITECTURE_LOONGARCH64,
        ARCHITECTURE_M68K,
        ARCHITECTURE_MIPS,
        ARCHITECTURE_MIPS64,
        ARCHITECTURE_MIPS64_LE,
        ARCHITECTURE_MIPS_LE,
        ARCHITECTURE_NIOS2,
        ARCHITECTURE_PARISC,
        ARCHITECTURE_PARISC64,
        ARCHITECTURE_PPC,
        ARCHITECTURE_PPC64,
        ARCHITECTURE_PPC64_LE,
        ARCHITECTURE_PPC_LE,
        ARCHITECTURE_RISCV32,
        ARCHITECTURE_RISCV64,
        ARCHITECTURE_S390,
        ARCHITECTURE_S390X,
        ARCHITECTURE_SH,
        ARCHITECTURE_SH64,
        ARCHITECTURE_SPARC,
        ARCHITECTURE_SPARC64,
        ARCHITECTURE_TILEGX,
        ARCHITECTURE_X86,
        ARCHITECTURE_X86_64,
        _ARCHITECTURE_MAX,
        _ARCHITECTURE_INVALID = -EINVAL,
} Architecture;

Architecture uname_architecture(void);

/*
 * LIB_ARCH_TUPLE should resolve to the local library path
 * architecture tuple systemd is built for, according to the Debian
 * tuple list:
 *
 * https://wiki.debian.org/Multiarch/Tuples
 *
 * This is used in library search paths that should understand
 * Debian's paths on all distributions.
 */

#if defined(__x86_64__)
#  define native_architecture() ARCHITECTURE_X86_64
#  if defined(__ILP32__)
#    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
#  else
#    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
#  endif
#  define ARCHITECTURE_SECONDARY ARCHITECTURE_X86
#elif defined(__i386__)
#  define native_architecture() ARCHITECTURE_X86
#  define LIB_ARCH_TUPLE "i386-linux-gnu"
#elif defined(__powerpc64__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_PPC64
#    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
#    define ARCHITECTURE_SECONDARY ARCHITECTURE_PPC
#  else
#    define native_architecture() ARCHITECTURE_PPC64_LE
#    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
#    define ARCHITECTURE_SECONDARY ARCHITECTURE_PPC_LE
#  endif
#elif defined(__powerpc__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_PPC
#    if defined(__NO_FPRS__)
#      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
#    else
#      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
#    endif
#  else
#    define native_architecture() ARCHITECTURE_PPC_LE
#    error "Missing LIB_ARCH_TUPLE for PPCLE"
#  endif
#elif defined(__ia64__)
#  define native_architecture() ARCHITECTURE_IA64
#  define LIB_ARCH_TUPLE "ia64-linux-gnu"
#elif defined(__hppa64__)
#  define native_architecture() ARCHITECTURE_PARISC64
#  error "Missing LIB_ARCH_TUPLE for HPPA64"
#elif defined(__hppa__)
#  define native_architecture() ARCHITECTURE_PARISC
#  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
#elif defined(__s390x__)
#  define native_architecture() ARCHITECTURE_S390X
#  define LIB_ARCH_TUPLE "s390x-linux-gnu"
#  define ARCHITECTURE_SECONDARY ARCHITECTURE_S390
#elif defined(__s390__)
#  define native_architecture() ARCHITECTURE_S390
#  define LIB_ARCH_TUPLE "s390-linux-gnu"
#elif defined(__sparc__) && defined (__arch64__)
#  define native_architecture() ARCHITECTURE_SPARC64
#  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
#elif defined(__sparc__)
#  define native_architecture() ARCHITECTURE_SPARC
#  define LIB_ARCH_TUPLE "sparc-linux-gnu"
#elif defined(__mips64) && defined(__LP64__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_MIPS64
#    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
#  else
#    define native_architecture() ARCHITECTURE_MIPS64_LE
#    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
#  endif
#elif defined(__mips64)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_MIPS64
#    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
#  else
#    define native_architecture() ARCHITECTURE_MIPS64_LE
#    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
#  endif
#elif defined(__mips__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_MIPS
#    define LIB_ARCH_TUPLE "mips-linux-gnu"
#  else
#    define native_architecture() ARCHITECTURE_MIPS_LE
#    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
#  endif
#elif defined(__alpha__)
#  define native_architecture() ARCHITECTURE_ALPHA
#  define LIB_ARCH_TUPLE "alpha-linux-gnu"
#elif defined(__aarch64__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_ARM64_BE
#    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
#  else
#    define native_architecture() ARCHITECTURE_ARM64
#    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
#    define ARCHITECTURE_SECONDARY ARCHITECTURE_ARM
#  endif
#elif defined(__arm__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_ARM_BE
#    if defined(__ARM_EABI__)
#      if defined(__ARM_PCS_VFP)
#        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
#      else
#        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
#      endif
#    else
#      define LIB_ARCH_TUPLE "armeb-linux-gnu"
#    endif
#  else
#    define native_architecture() ARCHITECTURE_ARM
#    if defined(__ARM_EABI__)
#      if defined(__ARM_PCS_VFP)
#        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
#      else
#        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
#      endif
#    else
#      define LIB_ARCH_TUPLE "arm-linux-gnu"
#    endif
#  endif
#elif defined(__sh64__)
#  define native_architecture() ARCHITECTURE_SH64
#  error "Missing LIB_ARCH_TUPLE for SH64"
#elif defined(__sh__)
#  define native_architecture() ARCHITECTURE_SH
#  if defined(__SH1__)
#    define LIB_ARCH_TUPLE "sh1-linux-gnu"
#  elif defined(__SH2__)
#    define LIB_ARCH_TUPLE "sh2-linux-gnu"
#  elif defined(__SH2A__)
#    define LIB_ARCH_TUPLE "sh2a-linux-gnu"
#  elif defined(__SH2E__)
#    define LIB_ARCH_TUPLE "sh2e-linux-gnu"
#  elif defined(__SH3__)
#    define LIB_ARCH_TUPLE "sh3-linux-gnu"
#  elif defined(__SH3E__)
#    define LIB_ARCH_TUPLE "sh3e-linux-gnu"
#  elif defined(__SH4__) && !defined(__SH4A__)
#    define LIB_ARCH_TUPLE "sh4-linux-gnu"
#  elif defined(__SH4A__)
#    define LIB_ARCH_TUPLE "sh4a-linux-gnu"
#  endif
#elif defined(__loongarch_lp64)
#  define native_architecture() ARCHITECTURE_LOONGARCH64
#  if defined(__loongarch_double_float)
#    define LIB_ARCH_TUPLE "loongarch64-linux-gnu"
#  elif defined(__loongarch_single_float)
#    define LIB_ARCH_TUPLE "loongarch64-linux-gnuf32"
#  elif defined(__loongarch_soft_float)
#    define LIB_ARCH_TUPLE "loongarch64-linux-gnusf"
#  else
#    error "Unrecognized loongarch architecture variant"
#  endif
#elif defined(__m68k__)
#  define native_architecture() ARCHITECTURE_M68K
#  define LIB_ARCH_TUPLE "m68k-linux-gnu"
#elif defined(__tilegx__)
#  define native_architecture() ARCHITECTURE_TILEGX
#  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
#elif defined(__cris__)
#  define native_architecture() ARCHITECTURE_CRIS
#  error "Missing LIB_ARCH_TUPLE for CRIS"
#elif defined(__nios2__)
#  define native_architecture() ARCHITECTURE_NIOS2
#  define LIB_ARCH_TUPLE "nios2-linux-gnu"
#elif defined(__riscv)
#  if __SIZEOF_POINTER__ == 4
#    define native_architecture() ARCHITECTURE_RISCV32
#    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
#  elif __SIZEOF_POINTER__ == 8
#    define native_architecture() ARCHITECTURE_RISCV64
#    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
#  else
#    error "Unrecognized riscv architecture variant"
#  endif
#elif defined(__arc__)
#  if __BYTE_ORDER == __BIG_ENDIAN
#    define native_architecture() ARCHITECTURE_ARC_BE
#    define LIB_ARCH_TUPLE "arceb-linux"
#  else
#    define native_architecture() ARCHITECTURE_ARC
#    define LIB_ARCH_TUPLE "arc-linux"
#  endif
#else
#  error "Please register your architecture here!"
#endif

#if defined(__hppa__) || defined(__hppa64__)
#  define STACK_GROWS_UP 1
#else
#  define STACK_GROWS_UP 0
#endif

DECLARE_STRING_TABLE_LOOKUP(architecture, Architecture);
Commit	Line	Data
	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
	2	#pragma once
	3
	4	#include <endian.h>
	5
	6	#include "forward.h"
	7
	8	/* A cleaned up architecture definition. We don't want to get lost in
	9	* processor features, models, generations or even ABIs. Hence we
	10	* focus on general family, and distinguish word width and endianness. */
	11
	12	typedef enum Architecture {
	13	ARCHITECTURE_ALPHA,
	14	ARCHITECTURE_ARC,
	15	ARCHITECTURE_ARC_BE,
	16	ARCHITECTURE_ARM,
	17	ARCHITECTURE_ARM64,
	18	ARCHITECTURE_ARM64_BE,
	19	ARCHITECTURE_ARM_BE,
	20	ARCHITECTURE_CRIS,
	21	ARCHITECTURE_IA64,
	22	ARCHITECTURE_LOONGARCH64,
	23	ARCHITECTURE_M68K,
	24	ARCHITECTURE_MIPS,
	25	ARCHITECTURE_MIPS64,
	26	ARCHITECTURE_MIPS64_LE,
	27	ARCHITECTURE_MIPS_LE,
	28	ARCHITECTURE_NIOS2,
	29	ARCHITECTURE_PARISC,
	30	ARCHITECTURE_PARISC64,
	31	ARCHITECTURE_PPC,
	32	ARCHITECTURE_PPC64,
	33	ARCHITECTURE_PPC64_LE,
	34	ARCHITECTURE_PPC_LE,
	35	ARCHITECTURE_RISCV32,
	36	ARCHITECTURE_RISCV64,
	37	ARCHITECTURE_S390,
	38	ARCHITECTURE_S390X,
	39	ARCHITECTURE_SH,
	40	ARCHITECTURE_SH64,
	41	ARCHITECTURE_SPARC,
	42	ARCHITECTURE_SPARC64,
	43	ARCHITECTURE_TILEGX,
	44	ARCHITECTURE_X86,
	45	ARCHITECTURE_X86_64,
	46	_ARCHITECTURE_MAX,
	47	_ARCHITECTURE_INVALID = -EINVAL,
	48	} Architecture;
	49
	50	Architecture uname_architecture(void);
	51
	52	/*
	53	* LIB_ARCH_TUPLE should resolve to the local library path
	54	* architecture tuple systemd is built for, according to the Debian
	55	* tuple list:
	56	*
	57	* https://wiki.debian.org/Multiarch/Tuples
	58	*
	59	* This is used in library search paths that should understand
	60	* Debian's paths on all distributions.
	61	*/
	62
	63	#if defined(__x86_64__)
	64	# define native_architecture() ARCHITECTURE_X86_64
	65	# if defined(__ILP32__)
	66	# define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
	67	# else
	68	# define LIB_ARCH_TUPLE "x86_64-linux-gnu"
	69	# endif
	70	# define ARCHITECTURE_SECONDARY ARCHITECTURE_X86
	71	#elif defined(__i386__)
	72	# define native_architecture() ARCHITECTURE_X86
	73	# define LIB_ARCH_TUPLE "i386-linux-gnu"
	74	#elif defined(__powerpc64__)
	75	# if __BYTE_ORDER == __BIG_ENDIAN
	76	# define native_architecture() ARCHITECTURE_PPC64
	77	# define LIB_ARCH_TUPLE "ppc64-linux-gnu"
	78	# define ARCHITECTURE_SECONDARY ARCHITECTURE_PPC
	79	# else
	80	# define native_architecture() ARCHITECTURE_PPC64_LE
	81	# define LIB_ARCH_TUPLE "powerpc64le-linux-gnu"
	82	# define ARCHITECTURE_SECONDARY ARCHITECTURE_PPC_LE
	83	# endif
	84	#elif defined(__powerpc__)
	85	# if __BYTE_ORDER == __BIG_ENDIAN
	86	# define native_architecture() ARCHITECTURE_PPC
	87	# if defined(__NO_FPRS__)
	88	# define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
	89	# else
	90	# define LIB_ARCH_TUPLE "powerpc-linux-gnu"
	91	# endif
	92	# else
	93	# define native_architecture() ARCHITECTURE_PPC_LE
	94	# error "Missing LIB_ARCH_TUPLE for PPCLE"
	95	# endif
	96	#elif defined(__ia64__)
	97	# define native_architecture() ARCHITECTURE_IA64
	98	# define LIB_ARCH_TUPLE "ia64-linux-gnu"
	99	#elif defined(__hppa64__)
	100	# define native_architecture() ARCHITECTURE_PARISC64
	101	# error "Missing LIB_ARCH_TUPLE for HPPA64"
	102	#elif defined(__hppa__)
	103	# define native_architecture() ARCHITECTURE_PARISC
	104	# define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
	105	#elif defined(__s390x__)
	106	# define native_architecture() ARCHITECTURE_S390X
	107	# define LIB_ARCH_TUPLE "s390x-linux-gnu"
	108	# define ARCHITECTURE_SECONDARY ARCHITECTURE_S390
	109	#elif defined(__s390__)
	110	# define native_architecture() ARCHITECTURE_S390
	111	# define LIB_ARCH_TUPLE "s390-linux-gnu"
	112	#elif defined(__sparc__) && defined (__arch64__)
	113	# define native_architecture() ARCHITECTURE_SPARC64
	114	# define LIB_ARCH_TUPLE "sparc64-linux-gnu"
	115	#elif defined(__sparc__)
	116	# define native_architecture() ARCHITECTURE_SPARC
	117	# define LIB_ARCH_TUPLE "sparc-linux-gnu"
	118	#elif defined(__mips64) && defined(__LP64__)
	119	# if __BYTE_ORDER == __BIG_ENDIAN
	120	# define native_architecture() ARCHITECTURE_MIPS64
	121	# define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
	122	# else
	123	# define native_architecture() ARCHITECTURE_MIPS64_LE
	124	# define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
	125	# endif
	126	#elif defined(__mips64)
	127	# if __BYTE_ORDER == __BIG_ENDIAN
	128	# define native_architecture() ARCHITECTURE_MIPS64
	129	# define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
	130	# else
	131	# define native_architecture() ARCHITECTURE_MIPS64_LE
	132	# define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
	133	# endif
	134	#elif defined(__mips__)
	135	# if __BYTE_ORDER == __BIG_ENDIAN
	136	# define native_architecture() ARCHITECTURE_MIPS
	137	# define LIB_ARCH_TUPLE "mips-linux-gnu"
	138	# else
	139	# define native_architecture() ARCHITECTURE_MIPS_LE
	140	# define LIB_ARCH_TUPLE "mipsel-linux-gnu"
	141	# endif
	142	#elif defined(__alpha__)
	143	# define native_architecture() ARCHITECTURE_ALPHA
	144	# define LIB_ARCH_TUPLE "alpha-linux-gnu"
	145	#elif defined(__aarch64__)
	146	# if __BYTE_ORDER == __BIG_ENDIAN
	147	# define native_architecture() ARCHITECTURE_ARM64_BE
	148	# define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
	149	# else
	150	# define native_architecture() ARCHITECTURE_ARM64
	151	# define LIB_ARCH_TUPLE "aarch64-linux-gnu"
	152	# define ARCHITECTURE_SECONDARY ARCHITECTURE_ARM
	153	# endif
	154	#elif defined(__arm__)
	155	# if __BYTE_ORDER == __BIG_ENDIAN
	156	# define native_architecture() ARCHITECTURE_ARM_BE
	157	# if defined(__ARM_EABI__)
	158	# if defined(__ARM_PCS_VFP)
	159	# define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
	160	# else
	161	# define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
	162	# endif
	163	# else
	164	# define LIB_ARCH_TUPLE "armeb-linux-gnu"
	165	# endif
	166	# else
	167	# define native_architecture() ARCHITECTURE_ARM
	168	# if defined(__ARM_EABI__)
	169	# if defined(__ARM_PCS_VFP)
	170	# define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
	171	# else
	172	# define LIB_ARCH_TUPLE "arm-linux-gnueabi"
	173	# endif
	174	# else
	175	# define LIB_ARCH_TUPLE "arm-linux-gnu"
	176	# endif
	177	# endif
	178	#elif defined(__sh64__)
	179	# define native_architecture() ARCHITECTURE_SH64
	180	# error "Missing LIB_ARCH_TUPLE for SH64"
	181	#elif defined(__sh__)
	182	# define native_architecture() ARCHITECTURE_SH
	183	# if defined(__SH1__)
	184	# define LIB_ARCH_TUPLE "sh1-linux-gnu"
	185	# elif defined(__SH2__)
	186	# define LIB_ARCH_TUPLE "sh2-linux-gnu"
	187	# elif defined(__SH2A__)
	188	# define LIB_ARCH_TUPLE "sh2a-linux-gnu"
	189	# elif defined(__SH2E__)
	190	# define LIB_ARCH_TUPLE "sh2e-linux-gnu"
	191	# elif defined(__SH3__)
	192	# define LIB_ARCH_TUPLE "sh3-linux-gnu"
	193	# elif defined(__SH3E__)
	194	# define LIB_ARCH_TUPLE "sh3e-linux-gnu"
	195	# elif defined(__SH4__) && !defined(__SH4A__)
	196	# define LIB_ARCH_TUPLE "sh4-linux-gnu"
	197	# elif defined(__SH4A__)
	198	# define LIB_ARCH_TUPLE "sh4a-linux-gnu"
	199	# endif
	200	#elif defined(__loongarch_lp64)
	201	# define native_architecture() ARCHITECTURE_LOONGARCH64
	202	# if defined(__loongarch_double_float)
	203	# define LIB_ARCH_TUPLE "loongarch64-linux-gnu"
	204	# elif defined(__loongarch_single_float)
	205	# define LIB_ARCH_TUPLE "loongarch64-linux-gnuf32"
	206	# elif defined(__loongarch_soft_float)
	207	# define LIB_ARCH_TUPLE "loongarch64-linux-gnusf"
	208	# else
	209	# error "Unrecognized loongarch architecture variant"
	210	# endif
	211	#elif defined(__m68k__)
	212	# define native_architecture() ARCHITECTURE_M68K
	213	# define LIB_ARCH_TUPLE "m68k-linux-gnu"
	214	#elif defined(__tilegx__)
	215	# define native_architecture() ARCHITECTURE_TILEGX
	216	# define LIB_ARCH_TUPLE "tilegx-linux-gnu"
	217	#elif defined(__cris__)
	218	# define native_architecture() ARCHITECTURE_CRIS
	219	# error "Missing LIB_ARCH_TUPLE for CRIS"
	220	#elif defined(__nios2__)
	221	# define native_architecture() ARCHITECTURE_NIOS2
	222	# define LIB_ARCH_TUPLE "nios2-linux-gnu"
	223	#elif defined(__riscv)
	224	# if __SIZEOF_POINTER__ == 4
	225	# define native_architecture() ARCHITECTURE_RISCV32
	226	# define LIB_ARCH_TUPLE "riscv32-linux-gnu"
	227	# elif __SIZEOF_POINTER__ == 8
	228	# define native_architecture() ARCHITECTURE_RISCV64
	229	# define LIB_ARCH_TUPLE "riscv64-linux-gnu"
	230	# else
	231	# error "Unrecognized riscv architecture variant"
	232	# endif
	233	#elif defined(__arc__)
	234	# if __BYTE_ORDER == __BIG_ENDIAN
	235	# define native_architecture() ARCHITECTURE_ARC_BE
	236	# define LIB_ARCH_TUPLE "arceb-linux"
	237	# else
	238	# define native_architecture() ARCHITECTURE_ARC
	239	# define LIB_ARCH_TUPLE "arc-linux"
	240	# endif
	241	#else
	242	# error "Please register your architecture here!"
	243	#endif
	244
	245	#if defined(__hppa__) \|\| defined(__hppa64__)
	246	# define STACK_GROWS_UP 1
	247	#else
	248	# define STACK_GROWS_UP 0
	249	#endif
	250
	251	DECLARE_STRING_TABLE_LOOKUP(architecture, Architecture);