cosmopolitan/libc/integral/c.inc
Justine Tunney d1d4388201
Delete ASAN
It hasn't been helpful enough to be justify the maintenance burden. What
actually does help is mprotect(), kprintf(), --ftrace and --strace which
can always be counted upon to work correctly. We aren't losing much with
this change. Support for ASAN on AARCH64 was never implemented. Applying
ASAN to the core libc runtimes was disabled many months ago. If there is
some way to have an ASAN runtime for user programs that is less invasive
we can potentially consider reintroducing support. But now is premature.
2024-06-22 05:45:49 -07:00

691 lines
19 KiB
C++

#if __GNUC__ + 0 < 2
#define __attribute__(x)
#endif
#ifndef __cplusplus
#define COSMOPOLITAN_C_START_
#define COSMOPOLITAN_C_END_
#define COSMOPOLITAN_CXX_START_
#define COSMOPOLITAN_CXX_END_
#define COSMOPOLITAN_CXX_USING_
#endif
#ifndef __ia16__
#define __far
#endif
#if !defined(__GNUC__) && __cplusplus + 0 >= 201103L
#define typeof(x) decltype(x)
#elif !defined(__GNUC__) && __STDC_VERSION__ + 0 < 201112
#define typeof(x) __typeof(x)
#endif
#ifdef __cplusplus
#if __cplusplus >= 201103L
#define _Alignof(x) alignof(x)
#endif /* C++11 */
#else /* __cplusplus */
#if __STDC_VERSION__ + 0 < 201112
#if __GNUC__ + _MSC_VER + 0
#define _Alignof(x) __alignof(x)
#else
#define _Alignof(x) /* basically all it ever did lool */ sizeof(x)
#endif /* GNU/MSVC/!ANSI */
#endif /* C11 */
#endif /* __cplusplus */
#if !defined(__cplusplus) && !defined(inline) && __STDC_VERSION__ + 0 < 199901
#if defined(__GNUC__) || defined(_MSC_VER)
#define inline __inline
#else
#define inline
#define __inline
#endif
#endif
#ifdef __chibicc__
#define __extension__
#endif
#if __STDC_VERSION__ + 0 < 201112
#ifdef __GNUC__
#define _Alignas(x) __attribute__((__aligned__(x)))
#elif defined(_MSC_VER)
#define _Alignas(x) __declspec(align(x))
#endif
#endif
#ifdef _MSC_VER
#define __builtin_unreachable() __assume(false)
#elif !((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 405 || \
defined(__clang__) || defined(__INTEL_COMPILER) || \
__has_builtin(__builtin_unreachable))
#define __builtin_unreachable() \
for (;;) { \
}
#endif
#if (!defined(__llvm__) && !__has_builtin(__builtin_assume))
#define __builtin_assume(x) \
do { \
if (!(x)) \
__builtin_unreachable(); \
} while (0)
#endif
#if __STDC_VERSION__ + 0 < 201112
#define _Atomic(t) volatile t
#endif
#ifdef __llvm__
#define __gnu_printf__ __printf__
#define __gnu_scanf__ __scanf__
#endif
#if __cplusplus + 0 >= 201103L
#define NULL nullptr
#elif !defined(__cplusplus)
#define NULL ((void *)0)
#else
#define NULL 0
#endif
#ifndef __cplusplus
#if defined(__GNUC__) && !defined(__llvm__)
#pragma GCC push_options
#pragma GCC diagnostic ignored "-Wc++-compat"
#endif
typedef __WCHAR_TYPE__ wchar_t;
typedef __CHAR16_TYPE__ char16_t;
typedef __CHAR32_TYPE__ char32_t;
#if defined(__GNUC__) && !defined(__llvm__)
#pragma GCC pop_options
#endif
#endif /* __cplusplus */
#ifndef __COSMOCC__
#include "libc/stdbool.h"
#endif
typedef int errno_t;
typedef __SIZE_TYPE__ size_t;
typedef __PTRDIFF_TYPE__ ssize_t;
typedef __INTPTR_TYPE__ intptr_t;
typedef __UINTPTR_TYPE__ uintptr_t;
typedef __PTRDIFF_TYPE__ ptrdiff_t;
typedef __WINT_TYPE__ wint_t; /* uint32_t on linux but int32_t on xnu */
typedef __INT8_TYPE__ int8_t;
typedef __UINT8_TYPE__ uint8_t;
typedef __INT16_TYPE__ int16_t;
typedef __UINT16_TYPE__ uint16_t;
typedef __INT32_TYPE__ bool32;
typedef __INT32_TYPE__ int32_t;
typedef __UINT32_TYPE__ uint32_t;
typedef __INT64_TYPE__ int64_t;
typedef __UINT64_TYPE__ uint64_t;
typedef __INTMAX_TYPE__ intmax_t;
typedef __UINTMAX_TYPE__ uintmax_t;
#define __DEFINED_max_align_t
typedef long double max_align_t;
#ifdef _COSMO_SOURCE
#if (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 406 || defined(__llvm__)
typedef signed __int128 int128_t;
typedef unsigned __int128 uint128_t;
#endif
#endif /* _COSMO_SOURCE */
#ifndef __AXDX_T
#define __AXDX_T
typedef struct {
intptr_t ax, dx;
} axdx_t;
#endif
#ifndef __chibicc__
#define va_list __builtin_va_list
#define va_arg(ap, type) __builtin_va_arg(ap, type)
#define va_copy(dest, src) __builtin_va_copy(dest, src)
#define va_end(ap) __builtin_va_end(ap)
#define va_start(ap, last) __builtin_va_start(ap, last)
#else
#include "libc/integral/lp64arg.inc"
#endif
#define libcesque dontthrow dontcallback
#define memcpyesque libcesque
#define strlenesque libcesque nosideeffect paramsnonnull()
#define vallocesque \
libcesque __wur returnsaligned((65536)) returnspointerwithnoaliases
#define reallocesque libcesque returnsaligned((16))
#define mallocesque reallocesque returnspointerwithnoaliases
#define interruptfn nocallersavedregisters forcealignargpointer
#ifndef pureconst
#define pureconst __attribute__((__const__))
#endif
#ifndef forcealign
#define forcealign(bytes) __attribute__((__aligned__(bytes)))
#endif
#define thatispacked __attribute__((__packed__))
#define printfesque(n) __attribute__((__format__(__gnu_printf__, n, n + 1)))
#define scanfesque(n) __attribute__((__format__(__gnu_scanf__, n, n + 1)))
#define strftimeesque(n) __attribute__((__format__(__strftime__, n, 0)))
#ifndef privileged
#define privileged _Section(".privileged") dontinline dontinstrument dontubsan
#endif
#ifndef wontreturn
#if (__has_attribute(__noreturn__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 208)
#define wontreturn __attribute__((__noreturn__))
#else
#define wontreturn
#endif
#endif
#ifndef nosideeffect
#if (__has_attribute(__pure__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 296)
#define nosideeffect __attribute__((__pure__))
#else
#define nosideeffect
#endif
#endif
#ifndef dontinline
#ifdef _MSC_VER
#define dontinline __declspec(noinline)
#elif (__has_attribute(__noinline__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 301)
#define dontinline __attribute__((__noinline__))
#else
#define dontinline
#endif
#endif
#ifndef dontclone
#if (__has_attribute(__noclone__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 405)
#define dontclone __attribute__((__noclone__))
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#define dontclone
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#ifndef forceinline
#ifdef __cplusplus
#define forceinline inline
#else
#if (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 302
#if (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 403 || \
!defined(__cplusplus) || \
(defined(__clang__) && \
(defined(__GNUC_STDC_INLINE__) || defined(__GNUC_GNU_INLINE__)))
#if defined(__GNUC_STDC_INLINE__) || defined(__cplusplus)
#define forceinline \
static __inline __attribute__((__always_inline__, __gnu_inline__, \
__no_instrument_function__, __unused__))
#else
#define forceinline \
static __inline __attribute__((__always_inline__, \
__no_instrument_function__, __unused__))
#endif /* __GNUC_STDC_INLINE__ */
#endif /* GCC >= 4.3 */
#elif defined(_MSC_VER)
#define forceinline __forceinline
#else
#define forceinline static inline
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#endif /* __cplusplus */
#endif /* forceinline */
#ifndef __wur
#if ((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 304 || \
__has_attribute(__warn_unused_result__))
#define __wur __attribute__((__warn_unused_result__))
#else
#define __wur
#endif
#endif
#ifndef nullterminated
#if __has_attribute(__sentinel__) || __GNUC__ + 0 >= 4
#define nullterminated(x) __attribute__((__sentinel__ x))
#else
#define nullterminated(x)
#endif
#endif
#ifndef flattenout
#if __has_attribute(__flatten__) || \
((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 401 && !defined(__llvm__))
#define flattenout __attribute__((__flatten__))
#else
#define flattenout
#endif
#endif
#ifndef externinline
#if (!defined(__cplusplus) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 403 || \
(defined(__clang__) && \
(defined(__GNUC_STDC_INLINE__) || defined(__GNUC_GNU_INLINE__))))
#if defined(__GNUC_STDC_INLINE__) || defined(__cplusplus)
#define externinline extern __inline __attribute__((__gnu_inline__))
#else
#define externinline extern __inline __attribute__((__always_inline__))
#endif
#else
#define externinline inline
#endif
#endif
#ifndef relegated
#if (__has_attribute(__cold__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 403)
#define relegated __attribute__((__cold__))
#else
#define relegated
#endif
#endif
#if (__has_attribute(__warning__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 403)
#define warnifused(s) __attribute__((__warning__(s)))
#else
#define warnifused(s)
#endif
#ifndef firstclass
#if (__has_attribute(__hot__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 403)
#define firstclass __attribute__((__hot__))
#else
#define firstclass
#endif
#endif
#ifndef paramsnonnull
#if (__has_attribute(__nonnull__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 403)
#define paramsnonnull(opt_1idxs) __attribute__((__nonnull__ opt_1idxs))
#else
#define paramsnonnull(opt_1idxs)
#endif
#endif
#if __STDC_VERSION__ + 0 >= 199901L
#define hasatleast static
#else
#define hasatleast
#endif
#if __STDC_VERSION__ + 0 < 199901L && !defined(restrict)
#if !defined(__cplusplus) && \
((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 301 || defined(_MSC_VER))
#define restrict __restrict__
#else
#define restrict
#define __restrict
#endif
#endif
#ifndef dontcallback
#if (__has_attribute(__leaf__) || \
(!defined(__llvm__) && \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 406))
#define dontcallback __attribute__((__leaf__))
#else
#define dontcallback
#endif
#endif
#ifndef dontthrow
#if defined(__cplusplus) && \
(__has_attribute(dontthrow) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 303)
#define dontthrow __attribute__((__nothrow__))
#elif defined(_MSC_VER)
#define dontthrow __declspec(nothrow)
#else
#define dontthrow
#endif
#endif
#ifndef returnstwice
#if (__has_attribute(__returns_twice__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 402)
#define returnstwice __attribute__((__returns_twice__))
#else
#define returnstwice
#endif
#endif
#ifndef nodebuginfo
#if __has_attribute(__nodebug__) || defined(__llvm__)
#define nodebuginfo __attribute__((__nodebug__))
#else
#define nodebuginfo
#endif
#endif
#if (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 408 || \
__has_attribute(__force_align_arg_pointer__)
#define forcealignargpointer __attribute__((__force_align_arg_pointer__))
#else
#define forcealignargpointer "need modern compiler"
#endif
#ifndef returnsnonnull
#if (__has_attribute(__returns_nonnull__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 409)
#define returnsnonnull __attribute__((__returns_nonnull__))
#else
#define returnsnonnull
#endif
#endif
#if (__has_attribute(__assume_aligned__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 409)
#define returnsaligned(x) __attribute__((__assume_aligned__ x))
#else
#define returnsaligned(x)
#endif
#ifndef returnspointerwithnoaliases
#if (__has_attribute(__malloc__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 409)
#define returnspointerwithnoaliases __attribute__((__malloc__))
#elif defined(_MSC_VER)
#define returnspointerwithnoaliases __declspec(allocator)
#else
#define returnspointerwithnoaliases
#endif
#endif
#ifndef attributeallocsize
#if (__has_attribute(__alloc_size__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 409)
#define attributeallocsize(x) __attribute__((__alloc_size__ x))
#else
#define attributeallocsize(x)
#endif
#endif
#ifndef attributeallocalign
#if (__has_attribute(__alloc_align__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 409)
#define attributeallocalign(x) __attribute__((__alloc_align__ x))
#else
#define attributeallocalign(x)
#endif
#endif
#if __cplusplus + 0 >= 201103L
#define autotype(x) auto
#elif ((__has_builtin(__auto_type) || defined(__llvm__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 409) && \
!defined(__chibicc__))
#define autotype(x) __auto_type
#else
#define autotype(x) typeof(x)
#endif
#define offsetof(type, member) __builtin_offsetof(type, member)
#ifdef _COSMO_SOURCE
#ifndef dontinstrument
#if (__has_attribute(__no_instrument_function__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 204)
#if ((__GNUC__ + 0) >= 7 && !defined(__chibicc__)) || \
__has_attribute(__patchable_function_entry__)
#define dontinstrument \
__attribute__((__no_instrument_function__, \
__patchable_function_entry__(0, 0)))
#else
#define dontinstrument __attribute__((__no_instrument_function__))
#endif
#else
#define dontinstrument
#endif
#endif
#ifndef mayalias
#if (__has_attribute(__may_alias__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 303)
#define mayalias __attribute__((__may_alias__))
#else
#define mayalias
#endif
#endif
#ifndef dontoptimize
#if defined(__llvm__) || __has_attribute(__optnone__)
#define dontoptimize __attribute__((__optnone__))
#elif (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 407 || \
__has_attribute(__optimize__)
#define dontoptimize __attribute__((__optimize__(0)))
#endif
#endif
#ifndef optimizesize
#if (__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 407 || \
__has_attribute(__optimize__)
#define optimizesize __attribute__((__optimize__("s")))
#elif defined(__llvm__) || __has_attribute(__optnone__)
#define optimizesize __attribute__((__optnone__))
#endif
#endif
#ifndef optimizespeed
/* warning: corrupts frame pointer; only use on leaf functions */
#if ((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 407 || \
__has_attribute(__optimize__))
#define optimizespeed __attribute__((__optimize__(3)))
#else
#define optimizespeed
#endif
#endif
#ifndef unrollloops
#if ((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 407 || \
__has_attribute(__optimize__))
#define unrollloops __attribute__((__optimize__("unroll-loops")))
#else
#define unrollloops
#endif
#endif
#ifndef _Microarchitecture
#if (__has_attribute(__target__) || \
(__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 404)
#define _Microarchitecture(march) __attribute__((__target__(march)))
#else
#define _Microarchitecture(march)
#endif
#endif
#ifdef __x86_64__
#if __GNUC__ >= 7 || __has_attribute(__no_caller_saved_registers__)
#define nocallersavedregisters __attribute__((__no_caller_saved_registers__))
#else
#define nocallersavedregisters "need modern compiler"
#endif
#else
#define nocallersavedregisters
#endif
#if ((__GNUC__ + 0) * 100 + (__GNUC_MINOR__ + 0) >= 408 || \
__has_attribute(__no_sanitize_undefined__))
#define dontubsan __attribute__((__no_sanitize_undefined__))
#else
#define dontubsan
#endif
#ifdef __x86_64__
#define notpossible \
do { \
__asm__("ud2"); \
__builtin_unreachable(); \
} while (0)
#elif defined(__aarch64__)
#define notpossible \
do { \
__asm__("udf\t#0"); \
__builtin_unreachable(); \
} while (0)
#else
#define notpossible __builtin_trap()
#endif
#define donothing \
do { \
} while (0)
#define textstartup _Section(".text.startup")
#define textexit _Section(".text.exit")
#define textreal _Section(".text.real")
#define texthead _Section(".text.head")
#define textwindows _Section(".text.windows")
#define antiquity _Section(".text.antiquity")
#ifdef __llvm__
#define __builtin_ia32_movntdq(x, y) (*(x) = (y))
#endif
#ifndef _Section
#define _Section(s) __attribute__((__section__(s)))
#endif
#ifndef __llvm__
#pragma GCC diagnostic ignored "-Wformat=0" /* todo: patch gcc */
#pragma GCC diagnostic ignored "-Wbuiltin-declaration-mismatch"
#pragma GCC diagnostic warning "-Wunknown-pragmas"
#else
#pragma GCC diagnostic ignored "-Wformat"
#pragma GCC diagnostic ignored "-Wconstant-logical-operand" /* what */
#pragma GCC diagnostic ignored "-Wunknown-warning-option"
#pragma GCC diagnostic ignored "-Wunknown-pragmas"
#pragma GCC diagnostic ignored "-Wstring-plus-int" /* features 4 losers */
#pragma GCC diagnostic ignored "-Wkeyword-compat" /* c++ upgrade */
#pragma GCC diagnostic ignored "-Wuser-defined-literals" /* reserved for me */
#endif
#pragma GCC diagnostic ignored "-Wformat-extra-args" /* todo: patch gcc */
#pragma GCC diagnostic ignored "-Wunused-function" /* contradicts dce */
#pragma GCC diagnostic ignored "-Wunused-const-variable" /* sooo ridiculous */
#ifndef __cplusplus
#pragma GCC diagnostic ignored "-Wold-style-definition" /* orwellian bullsh */
#endif
#ifdef __x86_64__
#define DebugBreak() __asm__("int3")
#elif defined(__aarch64__)
#define DebugBreak() __asm__("brk\t#0x666")
#else
#define DebugBreak() __builtin_trap()
#endif
#ifdef __aarch64__
/* raise sigill (not sigtrap) like x86 does */
#define __builtin_trap() \
do { \
__asm__("udf\t#0x666"); \
__builtin_unreachable(); \
} while (0)
#endif
#endif /* _COSMO_SOURCE */
#define __veil(CONSTRAINT, EXPRESSION) \
__extension__({ \
autotype(EXPRESSION) VeiledValue = (EXPRESSION); \
__asm__("" : "=" CONSTRAINT ""(VeiledValue) : "0"(VeiledValue)); \
VeiledValue; \
})
#define __conceal(CONSTRAINT, EXPRESSION) \
__extension__({ \
autotype(EXPRESSION) VeiledValue = (EXPRESSION); \
__asm__ volatile("" : "=" CONSTRAINT ""(VeiledValue) : "0"(VeiledValue)); \
VeiledValue; \
})
#define __expropriate(EXPRESSION) \
__extension__({ \
__asm__ volatile("" ::"g"(EXPRESSION) : "memory"); \
0; \
})
#if !defined(__APPLE__) && defined(__x86_64__)
#define __yoink(SYMBOL) \
__asm__(".section .yoink\n\tnopl\t%0\n\t.previous" : : "m"(SYMBOL))
#elif defined(__aarch64__)
#define __yoink(SYMBOL) \
__asm__(".section .yoink\n\tb\t%0\n\t.previous" : : "m"(SYMBOL))
#else
#define __yoink(SYMBOL) (void)0
#endif
#if !defined(__APPLE__) && defined(__x86_64__)
#define __static_yoink(SYMBOLSTR) \
__asm__(".section .yoink\n\tnopl\t\"" SYMBOLSTR "\"\n\t.previous")
#elif defined(__aarch64__)
#define __static_yoink(SYMBOLSTR) \
__asm__(".section .yoink\n\tb\t\"" SYMBOLSTR "\"\n\t.previous")
#else
#define __static_yoink(SYMBOLSTR)
#endif
#if !defined(IM_FEELING_NAUGHTY)
#define __static_yoink_source(PATH) __static_yoink(PATH)
#else
#define __static_yoink_source(PATH)
#endif
#define __weak_reference(sym, alias) __weak_reference_impl(sym, alias)
#define __weak_reference_impl(sym, alias) \
__asm__(".weak\t" #alias "\n\t" \
".equ\t" #alias ", " #sym "\n\t" \
".type\t" #alias ",@notype")
#ifndef __chibicc__
#define __strong_reference(sym, alias) \
extern __typeof(sym) alias __attribute__((__alias__(#sym)))
#else
#define __strong_reference(sym, alias) __weak_reference(sym, alias)
#endif
#if defined(__GNUC__) || defined(__llvm__)
#define __funline \
extern __inline \
__attribute__((__gnu_inline__, __always_inline__, __artificial__))
#else
#define __funline static inline
#endif
#if defined(__x86_64__) && (defined(__GNUC__) || defined(__llvm__)) && \
!defined(__chibicc__) && defined(__OPTIMIZE__)
#define __target_clones(x) __attribute__((__target_clones__(x ",default")))
#else
#define __target_clones(x)
#endif
#if !defined(TINY) && !defined(__AVX__)
#define __vex __target_clones("avx")
#else
#define __vex
#endif
#define __notice(sym, str) \
__attribute__((__section__(".notice"), __aligned__(1))) const char sym[] = \
"\n\n" str
#define MACHINE_CODE_ANALYSIS_BEGIN_
#define MACHINE_CODE_ANALYSIS_END_