diff options
Diffstat (limited to 'tools/profiler/lul/platform-linux-lul.cpp')
-rw-r--r-- | tools/profiler/lul/platform-linux-lul.cpp | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/tools/profiler/lul/platform-linux-lul.cpp b/tools/profiler/lul/platform-linux-lul.cpp deleted file mode 100644 index da764f3cfb..0000000000 --- a/tools/profiler/lul/platform-linux-lul.cpp +++ /dev/null @@ -1,88 +0,0 @@ -/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ -/* This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include <stdio.h> -#include <signal.h> -#include <string.h> -#include <stdlib.h> -#include <time.h> - -#include "platform.h" -#include "PlatformMacros.h" -#include "LulMain.h" -#include "shared-libraries.h" -#include "AutoObjectMapper.h" - -// Contains miscellaneous helpers that are used to connect SPS and LUL. - - -// Find out, in a platform-dependent way, where the code modules got -// mapped in the process' virtual address space, and get |aLUL| to -// load unwind info for them. -void -read_procmaps(lul::LUL* aLUL) -{ - MOZ_ASSERT(aLUL->CountMappings() == 0); - -# if defined(SPS_OS_linux) || defined(SPS_OS_android) || defined(SPS_OS_darwin) - SharedLibraryInfo info = SharedLibraryInfo::GetInfoForSelf(); - - for (size_t i = 0; i < info.GetSize(); i++) { - const SharedLibrary& lib = info.GetEntry(i); - -# if defined(SPS_OS_android) - // We're using faulty.lib. Use a special-case object mapper. - AutoObjectMapperFaultyLib mapper(aLUL->mLog); -# else - // We can use the standard POSIX-based mapper. - AutoObjectMapperPOSIX mapper(aLUL->mLog); -# endif - - // Ask |mapper| to map the object. Then hand its mapped address - // to NotifyAfterMap(). - void* image = nullptr; - size_t size = 0; - bool ok = mapper.Map(&image, &size, lib.GetName()); - if (ok && image && size > 0) { - aLUL->NotifyAfterMap(lib.GetStart(), lib.GetEnd()-lib.GetStart(), - lib.GetName().c_str(), image); - } else if (!ok && lib.GetName() == "") { - // The object has no name and (as a consequence) the mapper - // failed to map it. This happens on Linux, where - // GetInfoForSelf() produces two such mappings: one for the - // executable and one for the VDSO. The executable one isn't a - // big deal since there's not much interesting code in there, - // but the VDSO one is a problem on x86-{linux,android} because - // lack of knowledge about the mapped area inhibits LUL's - // special __kernel_syscall handling. Hence notify |aLUL| at - // least of the mapping, even though it can't read any unwind - // information for the area. - aLUL->NotifyExecutableArea(lib.GetStart(), lib.GetEnd()-lib.GetStart()); - } - - // |mapper| goes out of scope at this point and so its destructor - // unmaps the object. - } - -# else -# error "Unknown platform" -# endif -} - - -// LUL needs a callback for its logging sink. -void -logging_sink_for_LUL(const char* str) { - // Ignore any trailing \n, since LOG will add one anyway. - size_t n = strlen(str); - if (n > 0 && str[n-1] == '\n') { - char* tmp = strdup(str); - tmp[n-1] = 0; - LOG(tmp); - free(tmp); - } else { - LOG(str); - } -} |