From 9abfe3d0a5bbefd85c54feda0dac2d030cbb5635 Mon Sep 17 00:00:00 2001 From: mmentovai Date: Tue, 7 Aug 2007 21:16:45 +0000 Subject: Solaris port of minidump generator. Port by Alfred Peng. r=me http://groups.google.com/group/google-breakpad-dev/browse_thread/thread/7d8945578e3dac3 git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@198 4c0a9323-5329-0410-9bdc-e9ce6186880e --- src/common/solaris/file_id.cc | 198 ++++++++++++++++++++++++++++++++++++ src/common/solaris/file_id.h | 66 ++++++++++++ src/common/solaris/guid_creator.cc | 84 +++++++++++++++ src/common/solaris/guid_creator.h | 50 +++++++++ src/common/solaris/message_output.h | 54 ++++++++++ 5 files changed, 452 insertions(+) create mode 100644 src/common/solaris/file_id.cc create mode 100644 src/common/solaris/file_id.h create mode 100644 src/common/solaris/guid_creator.cc create mode 100644 src/common/solaris/guid_creator.h create mode 100644 src/common/solaris/message_output.h (limited to 'src/common/solaris') diff --git a/src/common/solaris/file_id.cc b/src/common/solaris/file_id.cc new file mode 100644 index 00000000..4bec3ed8 --- /dev/null +++ b/src/common/solaris/file_id.cc @@ -0,0 +1,198 @@ +// Copyright (c) 2007, 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. + +// file_id.cc: Return a unique identifier for a file +// +// See file_id.h for documentation +// +// Author: Alfred Peng + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "common/solaris/file_id.h" +#include "common/solaris/message_output.h" +#include "google_breakpad/common/minidump_format.h" + +namespace google_breakpad { + +class AutoElfEnder { + public: + AutoElfEnder(Elf *elf) : elf_(elf) {} + ~AutoElfEnder() { if (elf_) elf_end(elf_); } + private: + Elf *elf_; +}; + +// Find the text section in elf object file. +// Return the section start address and the size. +static bool FindElfTextSection(int fd, const void *elf_base, + const void **text_start, + int *text_size) { + assert(text_start); + assert(text_size); + + *text_start = NULL; + *text_size = 0; + + if (elf_version(EV_CURRENT) == EV_NONE) { + print_message2(2, "elf_version() failed: %s\n", elf_errmsg(0)); + return false; + } + + GElf_Ehdr elf_header; + lseek(fd, 0L, 0); + Elf *elf = elf_begin(fd, ELF_C_READ, NULL); + AutoElfEnder elfEnder(elf); + + if (gelf_getehdr(elf, &elf_header) == (GElf_Ehdr *)NULL) { + print_message2(2, "failed to read elf header: %s\n", elf_errmsg(-1)); + return false; + } + + if (elf_header.e_ident[EI_MAG0] != ELFMAG0 || + elf_header.e_ident[EI_MAG1] != ELFMAG1 || + elf_header.e_ident[EI_MAG2] != ELFMAG2 || + elf_header.e_ident[EI_MAG3] != ELFMAG3) { + print_message1(2, "header magic doesn't match\n"); + return false; + } + + static const char kTextSectionName[] = ".text"; + const GElf_Shdr *text_section = NULL; + Elf_Scn *scn = NULL; + GElf_Shdr shdr; + + while ((scn = elf_nextscn(elf, scn)) != NULL) { + if (gelf_getshdr(scn, &shdr) == (GElf_Shdr *)0) { + print_message2(2, "failed to read section header: %s\n", elf_errmsg(0)); + return false; + } + + if (shdr.sh_type == SHT_PROGBITS) { + const char *section_name = elf_strptr(elf, elf_header.e_shstrndx, + shdr.sh_name); + if (!section_name) { + print_message2(2, "Section name error: %s\n", elf_errmsg(-1)); + continue; + } + + if (strcmp(section_name, kTextSectionName) == 0) { + text_section = &shdr; + break; + } + } + } + if (text_section != NULL && text_section->sh_size > 0) { + *text_start = (char *)elf_base + text_section->sh_offset; + *text_size = text_section->sh_size; + return true; + } + + return false; +} + +FileID::FileID(const char *path) { + strncpy(path_, path, strlen(path)); +} + +class AutoCloser { + public: + AutoCloser(int fd) : fd_(fd) {} + ~AutoCloser() { if (fd_) close(fd_); } + private: + int fd_; +}; + +bool FileID::ElfFileIdentifier(unsigned char identifier[16]) { + int fd = 0; + if ((fd = open(path_, O_RDONLY)) < 0) + return false; + + AutoCloser autocloser(fd); + struct stat st; + if (fstat(fd, &st) != 0 || st.st_size <= 0) + return false; + + void *base = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0); + if (!base) + return false; + + bool success = false; + const void *text_section = NULL; + int text_size = 0; + + if (FindElfTextSection(fd, base, &text_section, &text_size)) { + MD5_CTX md5; + MD5_Init(&md5); + MD5_Update(&md5, text_section, text_size); + MD5_Final(identifier, &md5); + success = true; + } + + munmap((char *)base, st.st_size); + return success; +} + +// static +bool FileID::ConvertIdentifierToString(const unsigned char identifier[16], + char *buffer, int buffer_length) { + if (buffer_length < 34) + return false; + + int buffer_idx = 0; + for (int idx = 0; idx < 16; ++idx) { + int hi = (identifier[idx] >> 4) & 0x0F; + int lo = (identifier[idx]) & 0x0F; + + buffer[buffer_idx++] = (hi >= 10) ? 'A' + hi - 10 : '0' + hi; + buffer[buffer_idx++] = (lo >= 10) ? 'A' + lo - 10 : '0' + lo; + } + + // Add an extra "0" by the end. + buffer[buffer_idx++] = '0'; + + // NULL terminate + buffer[buffer_idx] = 0; + + return true; +} + +} // namespace google_breakpad diff --git a/src/common/solaris/file_id.h b/src/common/solaris/file_id.h new file mode 100644 index 00000000..375e8575 --- /dev/null +++ b/src/common/solaris/file_id.h @@ -0,0 +1,66 @@ +// Copyright (c) 2007, 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. + +// file_id.h: Return a unique identifier for a file +// +// Author: Alfred Peng + +#ifndef COMMON_SOLARIS_FILE_ID_H__ +#define COMMON_SOLARIS_FILE_ID_H__ + +#include + +namespace google_breakpad { + +class FileID { + public: + FileID(const char *path); + ~FileID() {}; + + // Load the identifier for the elf file path specified in the constructor into + // |identifier|. Return false if the identifier could not be created for the + // file. + // The current implementation will return the MD5 hash of the file's bytes. + bool ElfFileIdentifier(unsigned char identifier[16]); + + // Convert the |identifier| data to a NULL terminated string. The string will + // be formatted as a MDCVInfoPDB70 struct. + // The |buffer| should be at least 34 bytes long to receive all of the data + // and termination. Shorter buffers will return false. + static bool ConvertIdentifierToString(const unsigned char identifier[16], + char *buffer, int buffer_length); + + private: + // Storage for the path specified + char path_[PATH_MAX]; +}; + +} // namespace google_breakpad + +#endif // COMMON_SOLARIS_FILE_ID_H__ diff --git a/src/common/solaris/guid_creator.cc b/src/common/solaris/guid_creator.cc new file mode 100644 index 00000000..70940259 --- /dev/null +++ b/src/common/solaris/guid_creator.cc @@ -0,0 +1,84 @@ +// Copyright (c) 2007, 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: Alfred Peng + +#include +#include + +#include +#include +#include + +#include "common/solaris/guid_creator.h" + +// +// GUIDGenerator +// +// This class is used to generate random GUID. +// Currently use random number to generate a GUID. This should be OK since +// we don't expect crash to happen very offen. +// +class GUIDGenerator { + public: + GUIDGenerator() { + srandom(time(NULL)); + } + + bool CreateGUID(GUID *guid) const { + guid->data1 = random(); + guid->data2 = (u_int16_t)(random()); + guid->data3 = (u_int16_t)(random()); + *reinterpret_cast(&guid->data4[0]) = random(); + *reinterpret_cast(&guid->data4[4]) = random(); + return true; + } +}; + +// Guid generator. +const GUIDGenerator kGuidGenerator; + +bool CreateGUID(GUID *guid) { + return kGuidGenerator.CreateGUID(guid); +}; + +// Parse guid to string. +bool GUIDToString(const GUID *guid, char *buf, int buf_len) { + // Should allow more space the the max length of GUID. + assert(buf_len > kGUIDStringLength); + int num = snprintf(buf, buf_len, kGUIDFormatString, + guid->data1, guid->data2, guid->data3, + *reinterpret_cast(&(guid->data4[0])), + *reinterpret_cast(&(guid->data4[4]))); + if (num != kGUIDStringLength) + return false; + + buf[num] = '\0'; + return true; +} diff --git a/src/common/solaris/guid_creator.h b/src/common/solaris/guid_creator.h new file mode 100644 index 00000000..4aee3a1c --- /dev/null +++ b/src/common/solaris/guid_creator.h @@ -0,0 +1,50 @@ +// Copyright (c) 2007, 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: Alfred Peng + +#ifndef COMMON_SOLARIS_GUID_CREATOR_H__ +#define COMMON_SOLARIS_GUID_CREATOR_H__ + +#include "google_breakpad/common/minidump_format.h" + +typedef MDGUID GUID; + +// Format string for parsing GUID. +#define kGUIDFormatString "%08x-%04x-%04x-%08x-%08x" +// Length of GUID string. Don't count the ending '\0'. +#define kGUIDStringLength 36 + +// Create a guid. +bool CreateGUID(GUID *guid); + +// Get the string from guid. +bool GUIDToString(const GUID *guid, char *buf, int buf_len); + +#endif // COMMON_SOLARIS_GUID_CREATOR_H__ diff --git a/src/common/solaris/message_output.h b/src/common/solaris/message_output.h new file mode 100644 index 00000000..3e3b1d46 --- /dev/null +++ b/src/common/solaris/message_output.h @@ -0,0 +1,54 @@ +// Copyright (c) 2007, 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: Alfred Peng + +#ifndef COMMON_SOLARIS_MESSAGE_OUTPUT_H__ +#define COMMON_SOLARIS_MESSAGE_OUTPUT_H__ + +namespace google_breakpad { + +const int MESSAGE_MAX = 1000; + +// Message output macros. +// snprintf doesn't operate heap on Solaris, while printf and fprintf do. +// Use snprintf here to avoid heap allocation. +#define print_message1(std, message) \ + char buffer[MESSAGE_MAX]; \ + int len = snprintf(buffer, MESSAGE_MAX, message); \ + write(std, buffer, len) + +#define print_message2(std, message, para) \ + char buffer[MESSAGE_MAX]; \ + int len = snprintf(buffer, MESSAGE_MAX, message, para); \ + write(std, buffer, len); + +} // namespace google_breakpad + +#endif // COMMON_SOLARIS_MESSAGE_OUTPUT_H__ -- cgit v1.2.1