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This file is a partial list of people who have contributed to the LLVM/CompilerRT
project. If you have contributed a patch or made some other contribution to
LLVM/CompilerRT, please submit a patch to this file to add yourself, and it will be
done!
The list is sorted by surname and formatted to allow easy grepping and
beautification by scripts. The fields are: name (N), email (E), web-address
(W), PGP key ID and fingerprint (P), description (D), and snail-mail address
(S).
N: Craig van Vliet
E: cvanvliet@auroraux.org
W: http://www.auroraux.org
D: Code style and Readability fixes.
N: Edward O'Callaghan
E: eocallaghan@auroraux.org
W: http://www.auroraux.org
D: CMake'ify Compiler-RT build system
D: Maintain Solaris & AuroraUX ports of Compiler-RT
N: Howard Hinnant
E: hhinnant@apple.com
D: Architect and primary author of compiler-rt
N: Guan-Hong Liu
E: koviankevin@hotmail.com
D: IEEE Quad-precision functions
N: Joerg Sonnenberger
E: joerg@NetBSD.org
D: Maintains NetBSD port.
N: Matt Thomas
E: matt@NetBSD.org
D: ARM improvements.

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==============================================================================
Software from third parties included in the LLVM Project:
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==============================================================================
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==============================================================================
The compiler_rt library is dual licensed under both the University of Illinois
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to use it under either license. As a contributor, you agree to allow your code
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Full text of the relevant licenses is included below.
==============================================================================
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Open Source License
Copyright (c) 2009-2019 by the contributors listed in CREDITS.TXT
All rights reserved.
Developed by:
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Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal with
the Software without restriction, including without limitation the rights to
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
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cc-runtime
==========
cc-runtime is a freestanding, integer-only, easy to integrate subset of LLVM's
compiler-rt libgcc-compatibility functions.
Relevant licenses apply: see license headers in source files and LICENSE.TXT.

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#include <limits.h>
#include <stdbool.h>
#include <stdint.h>
//===-- assembly.h - compiler-rt assembler support macros -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// 2024/01/21 - Modified by mintsuki for use inside cc-runtime
//
//===----------------------------------------------------------------------===//
//
// This file defines macros for use in compiler-rt assembler source.
// This file is not part of the interface of this library.
//
//===----------------------------------------------------------------------===//
#ifndef COMPILERRT_ASSEMBLY_H
#define COMPILERRT_ASSEMBLY_H
#define SEPARATOR ;
#define HIDDEN(name) .hidden name
#define LOCAL_LABEL(name) .L_##name
#define FILE_LEVEL_DIRECTIVE
#if defined(__arm__) || defined(__aarch64__)
#define SYMBOL_IS_FUNC(name) .type name,%function
#else
#define SYMBOL_IS_FUNC(name) .type name,@function
#endif
#define CONST_SECTION .section .rodata
#define NO_EXEC_STACK_DIRECTIVE .section .note.GNU-stack,"",%progbits
#if defined(__arm__) || defined(__aarch64__)
#define FUNC_ALIGN \
.text SEPARATOR \
.balign 16 SEPARATOR
#else
#define FUNC_ALIGN
#endif
// BTI and PAC gnu property note
#define NT_GNU_PROPERTY_TYPE_0 5
#define GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000
#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI 1
#define GNU_PROPERTY_AARCH64_FEATURE_1_PAC 2
#if defined(__ARM_FEATURE_BTI_DEFAULT)
#define BTI_FLAG GNU_PROPERTY_AARCH64_FEATURE_1_BTI
#else
#define BTI_FLAG 0
#endif
#if __ARM_FEATURE_PAC_DEFAULT & 3
#define PAC_FLAG GNU_PROPERTY_AARCH64_FEATURE_1_PAC
#else
#define PAC_FLAG 0
#endif
#define GNU_PROPERTY(type, value) \
.pushsection .note.gnu.property, "a" SEPARATOR \
.p2align 3 SEPARATOR \
.word 4 SEPARATOR \
.word 16 SEPARATOR \
.word NT_GNU_PROPERTY_TYPE_0 SEPARATOR \
.asciz "GNU" SEPARATOR \
.word type SEPARATOR \
.word 4 SEPARATOR \
.word value SEPARATOR \
.word 0 SEPARATOR \
.popsection
#if BTI_FLAG != 0
#define BTI_C hint #34
#define BTI_J hint #36
#else
#define BTI_C
#define BTI_J
#endif
#if (BTI_FLAG | PAC_FLAG) != 0
#define GNU_PROPERTY_BTI_PAC \
GNU_PROPERTY(GNU_PROPERTY_AARCH64_FEATURE_1_AND, BTI_FLAG | PAC_FLAG)
#else
#define GNU_PROPERTY_BTI_PAC
#endif
#if defined(__clang__) || defined(__GCC_HAVE_DWARF2_CFI_ASM)
#define CFI_START .cfi_startproc
#define CFI_END .cfi_endproc
#else
#define CFI_START
#define CFI_END
#endif
#if defined(__arm__)
// Determine actual [ARM][THUMB[1][2]] ISA using compiler predefined macros:
// - for '-mthumb -march=armv6' compiler defines '__thumb__'
// - for '-mthumb -march=armv7' compiler defines '__thumb__' and '__thumb2__'
#if defined(__thumb2__) || defined(__thumb__)
#define DEFINE_CODE_STATE .thumb SEPARATOR
#define DECLARE_FUNC_ENCODING .thumb_func SEPARATOR
#if defined(__thumb2__)
#define USE_THUMB_2
#define IT(cond) it cond
#define ITT(cond) itt cond
#define ITE(cond) ite cond
#else
#define USE_THUMB_1
#define IT(cond)
#define ITT(cond)
#define ITE(cond)
#endif // defined(__thumb__2)
#else // !defined(__thumb2__) && !defined(__thumb__)
#define DEFINE_CODE_STATE .arm SEPARATOR
#define DECLARE_FUNC_ENCODING
#define IT(cond)
#define ITT(cond)
#define ITE(cond)
#endif
#if defined(USE_THUMB_1) && defined(USE_THUMB_2)
#error "USE_THUMB_1 and USE_THUMB_2 can't be defined together."
#endif
#if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5
#define ARM_HAS_BX
#endif
#if !defined(__ARM_FEATURE_CLZ) && !defined(USE_THUMB_1) && \
(__ARM_ARCH >= 6 || (__ARM_ARCH == 5 && !defined(__ARM_ARCH_5__)))
#define __ARM_FEATURE_CLZ
#endif
#ifdef ARM_HAS_BX
#define JMP(r) bx r
#define JMPc(r, c) bx##c r
#else
#define JMP(r) mov pc, r
#define JMPc(r, c) mov##c pc, r
#endif
// pop {pc} can't switch Thumb mode on ARMv4T
#if __ARM_ARCH >= 5
#define POP_PC() pop {pc}
#else
#define POP_PC() \
pop {ip}; \
JMP(ip)
#endif
#if defined(USE_THUMB_2)
#define WIDE(op) op.w
#else
#define WIDE(op) op
#endif
#else // !defined(__arm)
#define DECLARE_FUNC_ENCODING
#define DEFINE_CODE_STATE
#endif
#define GLUE2_(a, b) a##b
#define GLUE(a, b) GLUE2_(a, b)
#define GLUE2(a, b) GLUE2_(a, b)
#define GLUE3_(a, b, c) a##b##c
#define GLUE3(a, b, c) GLUE3_(a, b, c)
#define GLUE4_(a, b, c, d) a##b##c##d
#define GLUE4(a, b, c, d) GLUE4_(a, b, c, d)
#ifndef SYMBOL_NAME
#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name)
#endif
#ifdef VISIBILITY_HIDDEN
#define DECLARE_SYMBOL_VISIBILITY(name) \
HIDDEN(SYMBOL_NAME(name)) SEPARATOR
#define DECLARE_SYMBOL_VISIBILITY_UNMANGLED(name) \
HIDDEN(name) SEPARATOR
#else
#define DECLARE_SYMBOL_VISIBILITY(name)
#define DECLARE_SYMBOL_VISIBILITY_UNMANGLED(name)
#endif
#define DEFINE_COMPILERRT_FUNCTION(name) \
DEFINE_CODE_STATE \
FILE_LEVEL_DIRECTIVE SEPARATOR \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name) \
DECLARE_FUNC_ENCODING \
SYMBOL_NAME(name):
#define DEFINE_COMPILERRT_THUMB_FUNCTION(name) \
DEFINE_CODE_STATE \
FILE_LEVEL_DIRECTIVE SEPARATOR \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name) SEPARATOR \
.thumb_func SEPARATOR \
SYMBOL_NAME(name):
#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \
DEFINE_CODE_STATE \
FILE_LEVEL_DIRECTIVE SEPARATOR \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
HIDDEN(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_FUNC_ENCODING \
SYMBOL_NAME(name):
#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \
DEFINE_CODE_STATE \
.globl name SEPARATOR \
SYMBOL_IS_FUNC(name) SEPARATOR \
HIDDEN(name) SEPARATOR \
DECLARE_FUNC_ENCODING \
name:
#define DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED(name) \
DEFINE_CODE_STATE \
FUNC_ALIGN \
.globl name SEPARATOR \
SYMBOL_IS_FUNC(name) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY_UNMANGLED(name) SEPARATOR \
DECLARE_FUNC_ENCODING \
name: \
SEPARATOR CFI_START \
SEPARATOR BTI_C
#define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \
.globl SYMBOL_NAME(name) SEPARATOR \
SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
DECLARE_SYMBOL_VISIBILITY(name) SEPARATOR \
.set SYMBOL_NAME(name), SYMBOL_NAME(target) SEPARATOR
#if defined(__ARM_EABI__)
#define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \
DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name)
#else
#define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name)
#endif
#define END_COMPILERRT_FUNCTION(name) \
.size SYMBOL_NAME(name), . - SYMBOL_NAME(name)
#define END_COMPILERRT_OUTLINE_FUNCTION(name) \
CFI_END SEPARATOR \
.size SYMBOL_NAME(name), . - SYMBOL_NAME(name)
#endif // COMPILERRT_ASSEMBLY_H
//===-- int_endianness.h - configuration header for compiler-rt -----------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// 2024/01/21 - Modified by mintsuki for use inside cc-runtime
//
//===----------------------------------------------------------------------===//
//
// This file is a configuration header for compiler-rt.
// This file is not part of the interface of this library.
//
//===----------------------------------------------------------------------===//
#ifndef INT_ENDIANNESS_H
#define INT_ENDIANNESS_H
// Clang and GCC provide built-in endianness definitions.
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define _YUGA_LITTLE_ENDIAN 0
#define _YUGA_BIG_ENDIAN 1
#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define _YUGA_LITTLE_ENDIAN 1
#define _YUGA_BIG_ENDIAN 0
#endif // __BYTE_ORDER__
#endif // INT_ENDIANNESS_H
//===-- int_lib.h - configuration header for compiler-rt -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// 2024/01/21 - Modified by mintsuki for use inside cc-runtime
//
//===----------------------------------------------------------------------===//
//
// This file is not part of the interface of this library.
//
// This file defines various standard types, most importantly a number of unions
// used to access parts of larger types.
//
//===----------------------------------------------------------------------===//
#ifndef INT_TYPES_H
#define INT_TYPES_H
// si_int is defined in Linux sysroot's asm-generic/siginfo.h
#ifdef si_int
#undef si_int
#endif
typedef int32_t si_int;
typedef uint32_t su_int;
#if UINT_MAX == 0xFFFFFFFF
#define clzsi __builtin_clz
#define ctzsi __builtin_ctz
#elif ULONG_MAX == 0xFFFFFFFF
#define clzsi __builtin_clzl
#define ctzsi __builtin_ctzl
#else
#error could not determine appropriate clzsi macro for this system
#endif
typedef int64_t di_int;
typedef uint64_t du_int;
typedef union {
di_int all;
struct {
#if _YUGA_LITTLE_ENDIAN
su_int low;
si_int high;
#else
si_int high;
su_int low;
#endif // _YUGA_LITTLE_ENDIAN
} s;
} dwords;
typedef union {
du_int all;
struct {
#if _YUGA_LITTLE_ENDIAN
su_int low;
su_int high;
#else
su_int high;
su_int low;
#endif // _YUGA_LITTLE_ENDIAN
} s;
} udwords;
#if defined(__LP64__) || defined(__wasm__) || defined(__mips64) || \
defined(__SIZEOF_INT128__)
#define CRT_HAS_128BIT
#endif
#ifdef CRT_HAS_128BIT
typedef int ti_int __attribute__((mode(TI)));
typedef unsigned tu_int __attribute__((mode(TI)));
typedef union {
ti_int all;
struct {
#if _YUGA_LITTLE_ENDIAN
du_int low;
di_int high;
#else
di_int high;
du_int low;
#endif // _YUGA_LITTLE_ENDIAN
} s;
} twords;
typedef union {
tu_int all;
struct {
#if _YUGA_LITTLE_ENDIAN
du_int low;
du_int high;
#else
du_int high;
du_int low;
#endif // _YUGA_LITTLE_ENDIAN
} s;
} utwords;
#endif // CRT_HAS_128BIT
#endif // INT_TYPES_H
//===-- int_lib.h - configuration header for compiler-rt -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
// 2024/01/21 - Modified by mintsuki for use inside cc-runtime
//
//===----------------------------------------------------------------------===//
//
// This file is a configuration header for compiler-rt.
// This file is not part of the interface of this library.
//
//===----------------------------------------------------------------------===//
#ifndef INT_LIB_H
#define INT_LIB_H
// Assumption: Signed integral is 2's complement.
// Assumption: Right shift of signed negative is arithmetic shift.
// Assumption: Endianness is little or big (not mixed).
// ABI macro definitions
#if __ARM_EABI__
#ifdef COMPILER_RT_ARMHF_TARGET
#define COMPILER_RT_ABI
#else
#define COMPILER_RT_ABI __attribute__((__pcs__("aapcs")))
#endif
#else
#define COMPILER_RT_ABI
#endif
#define AEABI_RTABI __attribute__((__pcs__("aapcs")))
#define ALWAYS_INLINE __attribute__((always_inline))
#define NOINLINE __attribute__((noinline))
#define NORETURN __attribute__((noreturn))
#define UNUSED __attribute__((unused))
#ifndef SYMBOL_NAME
#define STR(a) #a
#define XSTR(a) STR(a)
#define SYMBOL_NAME(name) XSTR(__USER_LABEL_PREFIX__) #name
#endif
#define COMPILER_RT_ALIAS(name, aliasname) \
COMPILER_RT_ABI __typeof(name) aliasname __attribute__((__alias__(#name)));
// Include the standard compiler builtin headers we use functionality from.
// Include the commonly used internal type definitions.
// Include internal utility function declarations.
COMPILER_RT_ABI int __paritysi2(si_int a);
COMPILER_RT_ABI int __paritydi2(di_int a);
COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b);
COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b);
COMPILER_RT_ABI su_int __udivsi3(su_int n, su_int d);
COMPILER_RT_ABI su_int __udivmodsi4(su_int a, su_int b, su_int *rem);
COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int *rem);
#ifdef CRT_HAS_128BIT
COMPILER_RT_ABI int __clzti2(ti_int a);
COMPILER_RT_ABI tu_int __udivmodti4(tu_int a, tu_int b, tu_int *rem);
#endif
#endif // INT_LIB_H
//===-- int_util.h - internal utility functions ---------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file is not part of the interface of this library.
//
// This file defines non-inline utilities which are available for use in the
// library. The function definitions themselves are all contained in int_util.c
// which will always be compiled into any compiler-rt library.
//
//===----------------------------------------------------------------------===//
#ifndef INT_UTIL_H
#define INT_UTIL_H
/// \brief Trigger a program abort (or panic for kernel code).
#define compilerrt_abort() __compilerrt_abort_impl(__FILE__, __LINE__, __func__)
NORETURN void __compilerrt_abort_impl(const char *file, int line,
const char *function);
#define COMPILE_TIME_ASSERT(expr) COMPILE_TIME_ASSERT1(expr, __COUNTER__)
#define COMPILE_TIME_ASSERT1(expr, cnt) COMPILE_TIME_ASSERT2(expr, cnt)
#define COMPILE_TIME_ASSERT2(expr, cnt) \
typedef char ct_assert_##cnt[(expr) ? 1 : -1] UNUSED
// Force unrolling the code specified to be repeated N times.
#define REPEAT_0_TIMES(code_to_repeat) /* do nothing */
#define REPEAT_1_TIMES(code_to_repeat) code_to_repeat
#define REPEAT_2_TIMES(code_to_repeat) \
REPEAT_1_TIMES(code_to_repeat) \
code_to_repeat
#define REPEAT_3_TIMES(code_to_repeat) \
REPEAT_2_TIMES(code_to_repeat) \
code_to_repeat
#define REPEAT_4_TIMES(code_to_repeat) \
REPEAT_3_TIMES(code_to_repeat) \
code_to_repeat
#define REPEAT_N_TIMES_(N, code_to_repeat) REPEAT_##N##_TIMES(code_to_repeat)
#define REPEAT_N_TIMES(N, code_to_repeat) REPEAT_N_TIMES_(N, code_to_repeat)
#endif // INT_UTIL_H