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//===-- int_util.c - Implement internal utilities -------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "int_lib.h"
// NOTE: The definitions in this file are declared weak because we clients to be
// able to arbitrarily package individual functions into separate .a files. If
// we did not declare these weak, some link situations might end up seeing
// duplicate strong definitions of the same symbol.
//
// We can't use this solution for kernel use (which may not support weak), but
// currently expect that when built for kernel use all the functionality is
// packaged into a single library.
#ifdef KERNEL_USE
NORETURN extern void panic(const char *, ...);
#ifndef _WIN32
__attribute__((visibility("hidden")))
#endif
void __compilerrt_abort_impl(const char *file, int line, const char *function) {
panic("%s:%d: abort in %s", file, line, function);
}
#elif __APPLE__
// from libSystem.dylib
NORETURN extern void __assert_rtn(const char *func, const char *file, int line,
const char *message);
__attribute__((weak))
__attribute__((visibility("hidden")))
void __compilerrt_abort_impl(const char *file, int line, const char *function) {
__assert_rtn(function, file, line, "libcompiler_rt abort");
}
#else
#ifdef _WIN32
#include <stdlib.h>
#endif
#ifndef _WIN32
__attribute__((weak))
__attribute__((visibility("hidden")))
#endif
void __compilerrt_abort_impl(const char *file, int line, const char *function) {
#if !__STDC_HOSTED__
// Avoid depending on libc when compiling with -ffreestanding.
__builtin_trap();
#elif defined(_WIN32)
abort();
#else
__builtin_abort();
#endif
}
#endif
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