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Issue 357: New Linux file_id code doesn't persist across strip. r=agl,nealsid at http://breakpad.appspot.com/49008

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git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@461 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2009-12-23 17:09:27 +00:00
parent 1adb184d42
commit 0a5fc5d663
9 changed files with 283 additions and 36 deletions
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29
src/client/linux/minidump_writer/linux_dumper.cc
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@ -42,15 +42,20 @@
#include <string.h>
#include <unistd.h>
#include <elf.h>
#include <errno.h>
#include <fcntl.h>
#include <link.h>
#include <sys/types.h>
#include <sys/ptrace.h>
#include <sys/wait.h>
#include <algorithm>
#include "client/linux/minidump_writer/directory_reader.h"
#include "client/linux/minidump_writer/line_reader.h"
#include "common/linux/file_id.h"
#include "common/linux/linux_libc_support.h"
#include "common/linux/linux_syscall_support.h"
@ -156,6 +161,30 @@ LinuxDumper::BuildProcPath(char* path, pid_t pid, const char* node) const {
memcpy(path + total_length, "\0", 1);
}
bool
LinuxDumper::ElfFileIdentifierForMapping(unsigned int mapping_id,
uint8_t identifier[sizeof(MDGUID)])
{
assert(mapping_id < mappings_.size());
const MappingInfo* mapping = mappings_[mapping_id];
int fd = sys_open(mapping->name, O_RDONLY, 0);
if (fd < 0)
return false;
struct kernel_stat st;
if (sys_fstat(fd, &st) != 0) {
sys_close(fd);
return false;
}
void* base = sys_mmap2(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
sys_close(fd);
if (base == MAP_FAILED)
return false;
bool success = FileID::ElfFileIdentifierFromMappedFile(base, identifier);
sys_munmap(base, st.st_size);
return success;
}
void*
LinuxDumper::FindBeginningOfLinuxGateSharedLibrary(const pid_t pid) const {
char auxv_path[80];