Min-Yih Hsu 96dd39c575
[XRay] Add __xray_default_options to specify build-time defined options (#117921)
Similar to `__asan_default_options`, users can specify default options
upon building the instrumented binaries by providing their own
definition of `__xray_default_options` which returns the option strings.

This is useful in cases where setting the `XRAY_OPTIONS` environment
variable might be difficult. Plus, it's a convenient way to populate
XRay options when you always want the instrumentation to be enabled.
2024-11-28 22:48:57 -08:00

47 lines
1.3 KiB
C++

//===-- xray_flags.h -------------------------------------------*- C++ -*-===//
//
// 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 a part of XRay, a dynamic runtime instrumentation system.
//
// XRay runtime flags.
//===----------------------------------------------------------------------===//
#ifndef XRAY_FLAGS_H
#define XRAY_FLAGS_H
#include "sanitizer_common/sanitizer_flag_parser.h"
#include "sanitizer_common/sanitizer_internal_defs.h"
extern "C" {
// Users can specify their default options upon building the instrumented
// binaries by provide a definition of this function.
SANITIZER_INTERFACE_ATTRIBUTE
const char *__xray_default_options();
}
namespace __xray {
struct Flags {
#define XRAY_FLAG(Type, Name, DefaultValue, Description) Type Name;
#include "xray_flags.inc"
#undef XRAY_FLAG
void setDefaults();
};
extern Flags xray_flags_dont_use_directly;
extern void registerXRayFlags(FlagParser *P, Flags *F);
const char *useCompilerDefinedFlags();
inline Flags *flags() { return &xray_flags_dont_use_directly; }
void initializeFlags();
} // namespace __xray
#endif // XRAY_FLAGS_H