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| author | Christopher Ferris <cferris@google.com> | 2015-01-13 19:07:12 -0800 |
|---|---|---|
| committer | Christopher Ferris <cferris@google.com> | 2015-01-14 15:24:33 -0800 |
| commit | 5f2ff6a9106083e2a79b8600a0bf6a5341c6ca38 (patch) | |
| tree | 61eaf30da95ea0ec85df406eda8ffc2805fb6ba5 /include | |
| parent | f2bd3fdd190fc1234913febfe254f8bcc4e675da (diff) | |
| download | system_core-5f2ff6a9106083e2a79b8600a0bf6a5341c6ca38.zip system_core-5f2ff6a9106083e2a79b8600a0bf6a5341c6ca38.tar.gz system_core-5f2ff6a9106083e2a79b8600a0bf6a5341c6ca38.tar.bz2 | |
Add timed versions of stack dumping functions.
Under some unknown circumstances, debuggerd could become unresponsive.
If you try and take a bugreport during this time, it will hang forever.
Adding functions that have a timeout will allow dumpstate to stop if
dumping is taking too long.
Bug: 18766581
Change-Id: I85053b8dcfe6224e2b64b4d8f7f2ef448b3cda34
Diffstat (limited to 'include')
| -rw-r--r-- | include/cutils/debugger.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/cutils/debugger.h b/include/cutils/debugger.h index 4bcc8e6..bae687d 100644 --- a/include/cutils/debugger.h +++ b/include/cutils/debugger.h @@ -64,11 +64,26 @@ typedef struct { */ int dump_tombstone(pid_t tid, char* pathbuf, size_t pathlen); +/* Dumps a process backtrace, registers, and stack to a tombstone file (requires root). + * Stores the tombstone path in the provided buffer. + * If reading debugger data from debuggerd ever takes longer than timeout_secs + * seconds, then stop and return an error. + * Returns 0 on success, -1 on error. + */ +int dump_tombstone_timeout(pid_t tid, char* pathbuf, size_t pathlen, int timeout_secs); + /* Dumps a process backtrace only to the specified file (requires root). * Returns 0 on success, -1 on error. */ int dump_backtrace_to_file(pid_t tid, int fd); +/* Dumps a process backtrace only to the specified file (requires root). + * If reading debugger data from debuggerd ever takes longer than timeout_secs + * seconds, then stop and return an error. + * Returns 0 on success, -1 on error. + */ +int dump_backtrace_to_file_timeout(pid_t tid, int fd, int timeout_secs); + #ifdef __cplusplus } #endif |