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| author | Mathieu Chartier <mathieuc@google.com> | 2013-11-13 13:26:07 -0800 |
|---|---|---|
| committer | Mathieu Chartier <mathieuc@google.com> | 2013-11-13 13:32:42 -0800 |
| commit | 3b6f0fae76fddf81930a263a075dc87b6039b7fc (patch) | |
| tree | aafa3fa3bfa31a2d5f1f3b407e59b704a4180a77 /runtime/mem_map.cc | |
| parent | 34e82934546bd470283346907bd7b74990797c56 (diff) | |
| download | art-3b6f0fae76fddf81930a263a075dc87b6039b7fc.tar.gz art-3b6f0fae76fddf81930a263a075dc87b6039b7fc.tar.bz2 art-3b6f0fae76fddf81930a263a075dc87b6039b7fc.zip | |
Add more logging when mmap fails.
We now print the reason that the mmap failed.
Change-Id: Ie515e4bba117c9ea1f4297abb826d32172bea962
Diffstat (limited to 'runtime/mem_map.cc')
| -rw-r--r-- | runtime/mem_map.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/runtime/mem_map.cc b/runtime/mem_map.cc index 3afb6065b6..39e838f457 100644 --- a/runtime/mem_map.cc +++ b/runtime/mem_map.cc @@ -133,12 +133,13 @@ MemMap* MemMap::MapFileAtAddress(byte* addr, size_t byte_count, int prot, int fl fd, page_aligned_offset)); if (actual == MAP_FAILED) { + std::string strerr(strerror(errno)); std::string maps; ReadFileToString("/proc/self/maps", &maps); - *error_msg = StringPrintf("mmap(%p, %zd, %x, %x, %d, %lld) of file '%s' failed\n%s", + *error_msg = StringPrintf("mmap(%p, %zd, %x, %x, %d, %lld) of file '%s' failed: %s\n%s", page_aligned_addr, page_aligned_byte_count, prot, flags, fd, - static_cast<int64_t>(page_aligned_offset), - filename, maps.c_str()); + static_cast<int64_t>(page_aligned_offset), filename, strerr.c_str(), + maps.c_str()); return NULL; } return new MemMap("file", actual + page_offset, byte_count, actual, page_aligned_byte_count, |