diff options
Diffstat (limited to 'third_party/glog/src/symbolize.h')
| -rw-r--r-- | third_party/glog/src/symbolize.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/third_party/glog/src/symbolize.h b/third_party/glog/src/symbolize.h deleted file mode 100644 index c6f9ec4360ed..000000000000 --- a/third_party/glog/src/symbolize.h +++ /dev/null @@ -1,158 +0,0 @@ -// Copyright (c) 2006, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Author: Satoru Takabayashi -// -// This library provides Symbolize() function that symbolizes program -// counters to their corresponding symbol names on linux platforms. -// This library has a minimal implementation of an ELF symbol table -// reader (i.e. it doesn't depend on libelf, etc.). -// -// The algorithm used in Symbolize() is as follows. -// -// 1. Go through a list of maps in /proc/self/maps and find the map -// containing the program counter. -// -// 2. Open the mapped file and find a regular symbol table inside. -// Iterate over symbols in the symbol table and look for the symbol -// containing the program counter. If such a symbol is found, -// obtain the symbol name, and demangle the symbol if possible. -// If the symbol isn't found in the regular symbol table (binary is -// stripped), try the same thing with a dynamic symbol table. -// -// Note that Symbolize() is originally implemented to be used in -// FailureSignalHandler() in base/google.cc. Hence it doesn't use -// malloc() and other unsafe operations. It should be both -// thread-safe and async-signal-safe. - -#ifndef BASE_SYMBOLIZE_H_ -#define BASE_SYMBOLIZE_H_ - -#include "utilities.h" -#include "config.h" -#include "glog/logging.h" - -#ifdef HAVE_SYMBOLIZE - -#if defined(__ELF__) // defined by gcc -#if defined(__OpenBSD__) -#include <sys/exec_elf.h> -#else -#include <elf.h> -#endif - -#if !defined(ANDROID) -#include <link.h> // For ElfW() macro. -#endif - -// For systems where SIZEOF_VOID_P is not defined, determine it -// based on __LP64__ (defined by gcc on 64-bit systems) -#if !defined(SIZEOF_VOID_P) -# if defined(__LP64__) -# define SIZEOF_VOID_P 8 -# else -# define SIZEOF_VOID_P 4 -# endif -#endif - -// If there is no ElfW macro, let's define it by ourself. -#ifndef ElfW -# if SIZEOF_VOID_P == 4 -# define ElfW(type) Elf32_##type -# elif SIZEOF_VOID_P == 8 -# define ElfW(type) Elf64_##type -# else -# error "Unknown sizeof(void *)" -# endif -#endif - -_START_GOOGLE_NAMESPACE_ - -// Gets the section header for the given name, if it exists. Returns true on -// success. Otherwise, returns false. -bool GetSectionHeaderByName(int fd, const char *name, size_t name_len, - ElfW(Shdr) *out); - -_END_GOOGLE_NAMESPACE_ - -#endif /* __ELF__ */ - -_START_GOOGLE_NAMESPACE_ - -// Restrictions on the callbacks that follow: -// - The callbacks must not use heaps but only use stacks. -// - The callbacks must be async-signal-safe. - -// Installs a callback function, which will be called right before a symbol name -// is printed. The callback is intended to be used for showing a file name and a -// line number preceding a symbol name. -// "fd" is a file descriptor of the object file containing the program -// counter "pc". The callback function should write output to "out" -// and return the size of the output written. On error, the callback -// function should return -1. -typedef int (*SymbolizeCallback)(int fd, - void* pc, - char* out, - size_t out_size, - uint64_t relocation); -void InstallSymbolizeCallback(SymbolizeCallback callback); - -// Installs a callback function, which will be called instead of -// OpenObjectFileContainingPcAndGetStartAddress. The callback is expected -// to searches for the object file (from /proc/self/maps) that contains -// the specified pc. If found, sets |start_address| to the start address -// of where this object file is mapped in memory, sets the module base -// address into |base_address|, copies the object file name into -// |out_file_name|, and attempts to open the object file. If the object -// file is opened successfully, returns the file descriptor. Otherwise, -// returns -1. |out_file_name_size| is the size of the file name buffer -// (including the null-terminator). -typedef int (*SymbolizeOpenObjectFileCallback)(uint64_t pc, - uint64_t& start_address, - uint64_t& base_address, - char* out_file_name, - int out_file_name_size); -void InstallSymbolizeOpenObjectFileCallback( - SymbolizeOpenObjectFileCallback callback); - -_END_GOOGLE_NAMESPACE_ - -#endif - -_START_GOOGLE_NAMESPACE_ - -// Symbolizes a program counter. On success, returns true and write the -// symbol name to "out". The symbol name is demangled if possible -// (supports symbols generated by GCC 3.x or newer). Otherwise, -// returns false. -GOOGLE_GLOG_DLL_DECL bool Symbolize(void *pc, char *out, int out_size); - -_END_GOOGLE_NAMESPACE_ - -#endif // BASE_SYMBOLIZE_H_ |