7#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_GCC_H_
8#define ZEPHYR_INCLUDE_TOOLCHAIN_GCC_H_
10#ifndef ZEPHYR_INCLUDE_TOOLCHAIN_H_
11#error Please do not include toolchain-specific headers directly, use <zephyr/toolchain.h> instead
21#define TOOLCHAIN_GCC_VERSION \
22 ((__GNUC__ * 10000) + (__GNUC_MINOR__ * 100) + __GNUC_PATCHLEVEL__)
21#define TOOLCHAIN_GCC_VERSION \ …
25#if !defined(TOOLCHAIN_HAS_PRAGMA_DIAG) && (TOOLCHAIN_GCC_VERSION >= 40600)
26#define TOOLCHAIN_HAS_PRAGMA_DIAG 1
29#if !defined(TOOLCHAIN_HAS_C_GENERIC) && (TOOLCHAIN_GCC_VERSION >= 40900)
30#define TOOLCHAIN_HAS_C_GENERIC 1
33#if !defined(TOOLCHAIN_HAS_C_AUTO_TYPE) && (TOOLCHAIN_GCC_VERSION >= 40900)
34#define TOOLCHAIN_HAS_C_AUTO_TYPE 1
37#define TOOLCHAIN_HAS_ZLA 1
46#ifndef __ORDER_BIG_ENDIAN__
47#define __ORDER_BIG_ENDIAN__ (1)
50#ifndef __ORDER_LITTLE_ENDIAN__
51#define __ORDER_LITTLE_ENDIAN__ (2)
55#if defined(__BIG_ENDIAN__) || defined(__ARMEB__) || \
56 defined(__THUMBEB__) || defined(__AARCH64EB__) || \
57 defined(__MIPSEB__) || defined(__TC32EB__)
59#define __BYTE_ORDER__ __ORDER_BIG_ENDIAN__
61#elif defined(__LITTLE_ENDIAN__) || defined(__ARMEL__) || \
62 defined(__THUMBEL__) || defined(__AARCH64EL__) || \
63 defined(__MIPSEL__) || defined(__TC32EL__)
65#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
68#error "__BYTE_ORDER__ is not defined and cannot be automatically resolved"
75#if defined(__cplusplus) && (__cplusplus >= 201103L)
76#define BUILD_ASSERT(EXPR, MSG...) static_assert(EXPR, "" MSG)
84#elif !defined(__cplusplus) && \
85 (((__GNUC__ > 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6))) || \
86 (__STDC_VERSION__) >= 201100)
87#define BUILD_ASSERT(EXPR, MSG...) _Static_assert((EXPR), "" MSG)
89#define BUILD_ASSERT(EXPR, MSG...)
93#define ZRESTRICT __restrict
95#define ZRESTRICT restrict
101#define ALIAS_OF(of) __attribute__((alias(#of)))
103#define FUNC_ALIAS(real_func, new_alias, return_type) \
104 return_type new_alias() ALIAS_OF(real_func)
106#if TOOLCHAIN_GCC_VERSION < 40500
107#define __builtin_unreachable() __builtin_trap()
110#if defined(CONFIG_ARCH_POSIX) && !defined(_ASMLANGUAGE)
114#define CODE_UNREACHABLE \
116 posix_print_error_and_exit("CODE_UNREACHABLE reached from %s:%d\n",\
117 __FILE__, __LINE__);\
118 __builtin_unreachable(); \
121#define CODE_UNREACHABLE __builtin_unreachable()
123#define FUNC_NORETURN __attribute__((__noreturn__))
128#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
129#define _NODATA_SECTION(segment) __attribute__((section(#segment)))
131#define _NODATA_SECTION(segment) \
132 __attribute__((section(#segment ",\"wa\",@nobits#")))
136#define UNALIGNED_GET(g) \
138 struct __attribute__((__packed__)) { \
139 __typeof__(*(g)) __v; \
140 } *__g = (__typeof__(__g)) (g); \
145#if (__GNUC__ >= 7) && (defined(CONFIG_ARM) || defined(CONFIG_ARM64))
156#define UNALIGNED_PUT(v, p) \
158 struct __attribute__((__packed__)) { \
159 __typeof__(*p) __v; \
160 } *__p = (__typeof__(__p)) (p); \
162 compiler_barrier(); \
167#define UNALIGNED_PUT(v, p) \
169 struct __attribute__((__packed__)) { \
170 __typeof__(*p) __v; \
171 } *__p = (__typeof__(__p)) (p); \
184#define UNALIGNED_MEMBER_ADDR(_p, _member) ((__typeof__(_p->_member) *) \
185 (((intptr_t)(_p)) + offsetof(__typeof__(*_p), _member)))
190#define __GENERIC_SECTION(segment) __attribute__((section(STRINGIFY(segment))))
191#define Z_GENERIC_SECTION(segment) __GENERIC_SECTION(segment)
193#define __GENERIC_DOT_SECTION(segment) \
194 __attribute__((section("." STRINGIFY(segment))))
195#define Z_GENERIC_DOT_SECTION(segment) __GENERIC_DOT_SECTION(segment)
197#define ___in_section(a, b, c) \
198 __attribute__((section("." Z_STRINGIFY(a) \
200 "." Z_STRINGIFY(c))))
201#define __in_section(a, b, c) ___in_section(a, b, c)
203#ifndef __in_section_unique
204#define __in_section_unique(seg) ___in_section(seg, __FILE__, __COUNTER__)
207#ifndef __in_section_unique_named
208#define __in_section_unique_named(seg, name) \
209 ___in_section(seg, __FILE__, name)
218#if !defined(CONFIG_XIP)
220#elif defined(CONFIG_ARCH_HAS_RAMFUNC_SUPPORT)
221#if defined(CONFIG_ARM)
222#if defined(__clang__)
227#define __ramfunc __attribute__((noinline)) __attribute__((section(".ramfunc")))
230#define __ramfunc __attribute__((noinline)) \
231 __attribute__((long_call, section(".ramfunc")))
234#define __ramfunc __attribute__((noinline)) \
235 __attribute__((section(".ramfunc")))
241#define __fallthrough __attribute__((fallthrough))
248#define __packed __attribute__((__packed__))
252#define __aligned(x) __attribute__((__aligned__(x)))
256#define __noinline __attribute__((noinline))
259#define __may_alias __attribute__((__may_alias__))
262#ifdef CONFIG_ENFORCE_ZEPHYR_STDINT
263#define __printf_like(f, a) __attribute__((format (printf, f, a)))
274#define __printf_like(f, a)
278#define __used __attribute__((__used__))
279#define __unused __attribute__((__unused__))
280#define __maybe_unused __attribute__((__unused__))
283#define __deprecated __attribute__((deprecated))
289#ifndef __attribute_const__
290#define __attribute_const__ __attribute__((__const__))
294#define __must_check __attribute__((warn_unused_result))
297#define ARG_UNUSED(x) (void)(x)
299#define likely(x) (__builtin_expect((bool)!!(x), true) != 0L)
300#define unlikely(x) (__builtin_expect((bool)!!(x), false) != 0L)
301#define POPCOUNT(x) __builtin_popcount(x)
303#ifndef __no_optimization
304#define __no_optimization __attribute__((optimize("-O0")))
308#define __weak __attribute__((__weak__))
311#ifndef __attribute_nonnull
312#define __attribute_nonnull(...) __attribute__((nonnull(__VA_ARGS__)))
317#define HAS_BUILTIN___builtin_add_overflow 1
318#define HAS_BUILTIN___builtin_sub_overflow 1
319#define HAS_BUILTIN___builtin_mul_overflow 1
320#define HAS_BUILTIN___builtin_div_overflow 1
323#define HAS_BUILTIN___builtin_clz 1
324#define HAS_BUILTIN___builtin_clzl 1
325#define HAS_BUILTIN___builtin_clzll 1
326#define HAS_BUILTIN___builtin_ctz 1
327#define HAS_BUILTIN___builtin_ctzl 1
328#define HAS_BUILTIN___builtin_ctzll 1
343#define __WARN(msg) __WARN1(GCC warning msg)
344#define __WARN1(s) _Pragma(#s)
347#ifndef CONFIG_DEPRECATION_TEST
348#define __DEPRECATED_MACRO __WARN("Macro is deprecated")
353#define __DEPRECATED_MACRO
358#if defined(_ASMLANGUAGE)
360#if defined(CONFIG_ARM)
362#if defined(CONFIG_ASSEMBLER_ISA_THUMB2)
364#define FUNC_CODE() .thumb;
369#define FUNC_CODE() .code 32;
390#if defined(_ASMLANGUAGE)
392#if defined(CONFIG_ARM) || defined(CONFIG_RISCV) \
393 || defined(CONFIG_XTENSA) || defined(CONFIG_ARM64) \
394 || defined(CONFIG_MIPS) || defined(CONFIG_RX)
395#define GTEXT(sym) .global sym; .type sym, %function
396#define GDATA(sym) .global sym; .type sym, %object
397#define WTEXT(sym) .weak sym; .type sym, %function
398#define WDATA(sym) .weak sym; .type sym, %object
399#elif defined(CONFIG_ARC)
405.macro glbl_text symbol
407 .type \symbol, %function
410.macro glbl_data symbol
412 .type \symbol, %
object
415.macro weak_data symbol
417 .type \symbol, %
object
420#define GTEXT(sym) glbl_text sym
421#define GDATA(sym) glbl_data sym
422#define WDATA(sym) weak_data sym
425#define GTEXT(sym) .globl sym; .type sym, @function
426#define GDATA(sym) .globl sym; .type sym, @object
439#if defined(CONFIG_ARC)
448.macro section_var section, symbol
449 .section .\section\().\symbol
453.macro section_func section, symbol
454 .section .\section\().\symbol,
"ax"
461.macro section_subsec_func section, subsection, symbol
462 .section .\section\().\subsection,
"ax"
467#define SECTION_VAR(sect, sym) section_var sect, sym
468#define SECTION_FUNC(sect, sym) section_func sect, sym
469#define SECTION_SUBSEC_FUNC(sect, subsec, sym) \
470 section_subsec_func sect, subsec, sym
473#define SECTION_VAR(sect, sym) .section .sect.sym; sym:
474#define SECTION_FUNC(sect, sym) \
475 .section .sect.sym, "ax"; \
477 PERFOPT_ALIGN; sym : \
479#define SECTION_SUBSEC_FUNC(sect, subsec, sym) \
480 .section .sect.subsec, "ax"; PERFOPT_ALIGN; sym :
486#if defined(_ASMLANGUAGE)
487#if defined(CONFIG_ARM)
488#if defined(CONFIG_ASSEMBLER_ISA_THUMB2)
490#define _ASM_FILE_PROLOGUE .text; .syntax unified; .thumb
492#define _ASM_FILE_PROLOGUE .text; .code 32
494#elif defined(CONFIG_ARM64)
495#define _ASM_FILE_PROLOGUE .text
505#define GEN_OFFSET_EXTERN(name) extern const char name[]
507#define GEN_ABS_SYM_BEGIN(name) \
508 EXTERN_C void name(void); \
512#define GEN_ABS_SYM_END }
531#if defined(CONFIG_ARM)
541#define GEN_ABSOLUTE_SYM(name, value) \
542 __asm__(".globl\t" #name "\n\t.equ\t" #name \
544 "\n\t.type\t" #name ",%%object" : : "n"(~(value)))
546#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
547 __asm__(".globl\t" #name \
548 "\n\t.equ\t" #name "," #value \
549 "\n\t.type\t" #name ",%object")
551#elif defined(CONFIG_X86)
553#define GEN_ABSOLUTE_SYM(name, value) \
554 __asm__(".globl\t" #name "\n\t.equ\t" #name \
556 "\n\t.type\t" #name ",@object" : : "n"(value))
558#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
559 __asm__(".globl\t" #name \
560 "\n\t.equ\t" #name "," #value \
561 "\n\t.type\t" #name ",@object")
563#elif defined(CONFIG_ARC) || defined(CONFIG_ARM64)
565#define GEN_ABSOLUTE_SYM(name, value) \
566 __asm__(".globl\t" #name "\n\t.equ\t" #name \
568 "\n\t.type\t" #name ",@object" : : "n"(value))
570#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
571 __asm__(".globl\t" #name \
572 "\n\t.equ\t" #name "," #value \
573 "\n\t.type\t" #name ",@object")
575#elif defined(CONFIG_RISCV) || defined(CONFIG_XTENSA) || defined(CONFIG_MIPS)
578#define GEN_ABSOLUTE_SYM(name, value) \
579 __asm__(".globl\t" #name "\n\t.equ\t" #name \
581 "\n\t.type\t" #name ",%%object" : : "n"(value))
583#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
584 __asm__(".globl\t" #name \
585 "\n\t.equ\t" #name "," #value \
586 "\n\t.type\t" #name ",%object")
588#elif defined(CONFIG_ARCH_POSIX)
589#define GEN_ABSOLUTE_SYM(name, value) \
590 __asm__(".globl\t" #name "\n\t.equ\t" #name \
592 "\n\t.type\t" #name ",@object" : : "n"(value))
594#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
595 __asm__(".globl\t" #name \
596 "\n\t.equ\t" #name "," #value \
597 "\n\t.type\t" #name ",@object")
599#elif defined(CONFIG_SPARC)
600#define GEN_ABSOLUTE_SYM(name, value) \
601 __asm__(".global\t" #name "\n\t.equ\t" #name \
603 "\n\t.type\t" #name ",#object" : : "n"(value))
605#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
606 __asm__(".globl\t" #name \
607 "\n\t.equ\t" #name "," #value \
608 "\n\t.type\t" #name ",#object")
610#elif defined(CONFIG_RX)
611#define GEN_ABSOLUTE_SYM(name, value) \
612 __asm__(".global\t" #name "\n\t.equ\t" #name \
614 "\n\t.type\t" #name ",%%object" : : "n"(value))
616#define GEN_ABSOLUTE_SYM_KCONFIG(name, value) \
617 __asm__(".global\t" #name \
618 "\n\t.equ\t" #name "," #value \
619 "\n\t.type\t" #name ",#object")
622#error processor architecture not supported
625#define compiler_barrier() do { \
626 __asm__ __volatile__ ("" ::: "memory"); \
638#define Z_MAX(a, b) ({ \
640 __typeof__(a) _value_a_ = (a); \
641 __typeof__(b) _value_b_ = (b); \
642 (_value_a_ > _value_b_) ? _value_a_ : _value_b_; \
650#define Z_MIN(a, b) ({ \
652 __typeof__(a) _value_a_ = (a); \
653 __typeof__(b) _value_b_ = (b); \
654 (_value_a_ < _value_b_) ? _value_a_ : _value_b_; \
662#define Z_CLAMP(val, low, high) ({ \
664 __typeof__(val) _value_val_ = (val); \
665 __typeof__(low) _value_low_ = (low); \
666 __typeof__(high) _value_high_ = (high); \
667 (_value_val_ < _value_low_) ? _value_low_ : \
668 (_value_val_ > _value_high_) ? _value_high_ : \
678#define Z_POW2_CEIL(x) \
679 ((x) <= 2UL ? (x) : (1UL << (8 * sizeof(long) - __builtin_clzl((x) - 1))))
687#define Z_IS_POW2(x) (((x) != 0) && (((x) & ((x)-1)) == 0))
689#if defined(CONFIG_ASAN) && defined(__clang__)
690#define __noasan __attribute__((no_sanitize("address")))
695#if defined(CONFIG_UBSAN)
696#define __noubsan __attribute__((no_sanitize("undefined")))
706#if (TOOLCHAIN_GCC_VERSION >= 110000) || \
707 (defined(TOOLCHAIN_CLANG_VERSION) && (TOOLCHAIN_CLANG_VERSION >= 70000))
708#define FUNC_NO_STACK_PROTECTOR __attribute__((no_stack_protector))
710#define FUNC_NO_STACK_PROTECTOR
715#define TOOLCHAIN_WARNING_ADDRESS_OF_PACKED_MEMBER "-Waddress-of-packed-member"
716#define TOOLCHAIN_WARNING_ARRAY_BOUNDS "-Warray-bounds"
717#define TOOLCHAIN_WARNING_ATTRIBUTES "-Wattributes"
718#define TOOLCHAIN_WARNING_DELETE_NON_VIRTUAL_DTOR "-Wdelete-non-virtual-dtor"
719#define TOOLCHAIN_WARNING_EXTRA "-Wextra"
720#define TOOLCHAIN_WARNING_NONNULL "-Wnonnull"
721#define TOOLCHAIN_WARNING_SHADOW "-Wshadow"
722#define TOOLCHAIN_WARNING_UNUSED_LABEL "-Wunused-label"
723#define TOOLCHAIN_WARNING_UNUSED_VARIABLE "-Wunused-variable"
726#if defined(__GNUC__) && !defined(__clang__)
727#define TOOLCHAIN_WARNING_POINTER_ARITH "-Wpointer-arith"
728#define TOOLCHAIN_WARNING_STRINGOP_OVERREAD "-Wstringop-overread"
731#define _TOOLCHAIN_DISABLE_WARNING(compiler, warning) \
732 TOOLCHAIN_PRAGMA(compiler diagnostic push) \
733 TOOLCHAIN_PRAGMA(compiler diagnostic ignored warning)
735#define _TOOLCHAIN_ENABLE_WARNING(compiler, warning) TOOLCHAIN_PRAGMA(compiler diagnostic pop)
737#define TOOLCHAIN_DISABLE_WARNING(warning) _TOOLCHAIN_DISABLE_WARNING(GCC, warning)
738#define TOOLCHAIN_ENABLE_WARNING(warning) _TOOLCHAIN_ENABLE_WARNING(GCC, warning)
740#if defined(__GNUC__) && !defined(__clang__)
741#define TOOLCHAIN_DISABLE_GCC_WARNING(warning) _TOOLCHAIN_DISABLE_WARNING(GCC, warning)
742#define TOOLCHAIN_ENABLE_GCC_WARNING(warning) _TOOLCHAIN_ENABLE_WARNING(GCC, warning)