mirror of
https://github.com/ziglang/zig.git
synced 2024-11-15 16:45:27 +00:00
140 lines
4.2 KiB
C++
Vendored
140 lines
4.2 KiB
C++
Vendored
//===-- sanitizer_flags.cpp -----------------------------------------------===//
|
|
//
|
|
// 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 ThreadSanitizer/AddressSanitizer runtime.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "sanitizer_flags.h"
|
|
|
|
#include "sanitizer_common.h"
|
|
#include "sanitizer_flag_parser.h"
|
|
#include "sanitizer_libc.h"
|
|
#include "sanitizer_linux.h"
|
|
#include "sanitizer_list.h"
|
|
|
|
namespace __sanitizer {
|
|
|
|
CommonFlags common_flags_dont_use;
|
|
|
|
void CommonFlags::SetDefaults() {
|
|
#define COMMON_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
|
|
#include "sanitizer_flags.inc"
|
|
#undef COMMON_FLAG
|
|
}
|
|
|
|
void CommonFlags::CopyFrom(const CommonFlags &other) {
|
|
internal_memcpy(this, &other, sizeof(*this));
|
|
}
|
|
|
|
// Copy the string from "s" to "out", making the following substitutions:
|
|
// %b = binary basename
|
|
// %p = pid
|
|
// %d = binary directory
|
|
void SubstituteForFlagValue(const char *s, char *out, uptr out_size) {
|
|
char *out_end = out + out_size;
|
|
while (*s && out < out_end - 1) {
|
|
if (s[0] != '%') {
|
|
*out++ = *s++;
|
|
continue;
|
|
}
|
|
switch (s[1]) {
|
|
case 'b': {
|
|
const char *base = GetProcessName();
|
|
CHECK(base);
|
|
while (*base && out < out_end - 1)
|
|
*out++ = *base++;
|
|
s += 2; // skip "%b"
|
|
break;
|
|
}
|
|
case 'p': {
|
|
int pid = internal_getpid();
|
|
char buf[32];
|
|
char *buf_pos = buf + 32;
|
|
do {
|
|
*--buf_pos = (pid % 10) + '0';
|
|
pid /= 10;
|
|
} while (pid);
|
|
while (buf_pos < buf + 32 && out < out_end - 1)
|
|
*out++ = *buf_pos++;
|
|
s += 2; // skip "%p"
|
|
break;
|
|
}
|
|
case 'd': {
|
|
uptr len = ReadBinaryDir(out, out_end - out);
|
|
out += len;
|
|
s += 2; // skip "%d"
|
|
break;
|
|
}
|
|
default:
|
|
*out++ = *s++;
|
|
break;
|
|
}
|
|
}
|
|
CHECK(out < out_end - 1);
|
|
*out = '\0';
|
|
}
|
|
|
|
class FlagHandlerInclude final : public FlagHandlerBase {
|
|
FlagParser *parser_;
|
|
bool ignore_missing_;
|
|
const char *original_path_;
|
|
|
|
public:
|
|
explicit FlagHandlerInclude(FlagParser *parser, bool ignore_missing)
|
|
: parser_(parser), ignore_missing_(ignore_missing), original_path_("") {}
|
|
bool Parse(const char *value) final {
|
|
original_path_ = value;
|
|
if (internal_strchr(value, '%')) {
|
|
char *buf = (char *)MmapOrDie(kMaxPathLength, "FlagHandlerInclude");
|
|
SubstituteForFlagValue(value, buf, kMaxPathLength);
|
|
bool res = parser_->ParseFile(buf, ignore_missing_);
|
|
UnmapOrDie(buf, kMaxPathLength);
|
|
return res;
|
|
}
|
|
return parser_->ParseFile(value, ignore_missing_);
|
|
}
|
|
bool Format(char *buffer, uptr size) override {
|
|
// Note `original_path_` isn't actually what's parsed due to `%`
|
|
// substitutions. Printing the substituted path would require holding onto
|
|
// mmap'ed memory.
|
|
return FormatString(buffer, size, original_path_);
|
|
}
|
|
};
|
|
|
|
void RegisterIncludeFlags(FlagParser *parser, CommonFlags *cf) {
|
|
FlagHandlerInclude *fh_include = new (FlagParser::Alloc)
|
|
FlagHandlerInclude(parser, /*ignore_missing*/ false);
|
|
parser->RegisterHandler("include", fh_include,
|
|
"read more options from the given file");
|
|
FlagHandlerInclude *fh_include_if_exists = new (FlagParser::Alloc)
|
|
FlagHandlerInclude(parser, /*ignore_missing*/ true);
|
|
parser->RegisterHandler(
|
|
"include_if_exists", fh_include_if_exists,
|
|
"read more options from the given file (if it exists)");
|
|
}
|
|
|
|
void RegisterCommonFlags(FlagParser *parser, CommonFlags *cf) {
|
|
#define COMMON_FLAG(Type, Name, DefaultValue, Description) \
|
|
RegisterFlag(parser, #Name, Description, &cf->Name);
|
|
#include "sanitizer_flags.inc"
|
|
#undef COMMON_FLAG
|
|
|
|
RegisterIncludeFlags(parser, cf);
|
|
}
|
|
|
|
void InitializeCommonFlags(CommonFlags *cf) {
|
|
// need to record coverage to generate coverage report.
|
|
cf->coverage |= cf->html_cov_report;
|
|
SetVerbosity(cf->verbosity);
|
|
|
|
InitializePlatformCommonFlags(cf);
|
|
}
|
|
|
|
} // namespace __sanitizer
|