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Use new debuggerd protocol.

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Bug: 6615693
Change-Id: Ibfddc0de3fa2a882f7d0238ab797e5b29296b54b
This commit is contained in:
Jeff Brown 2012-06-06 18:37:48 -07:00
parent e1dd3c287b
commit b7630f018a
1 changed files with 23 additions and 4 deletions
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27
linker/debugger.c
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@ -44,6 +44,23 @@ extern int tgkill(int tgid, int tid, int sig);
void notify_gdb_of_libraries(); void notify_gdb_of_libraries();
#define DEBUGGER_SOCKET_NAME "android:debuggerd"
typedef enum {
// dump a crash
DEBUGGER_ACTION_CRASH,
// dump a tombstone file
DEBUGGER_ACTION_DUMP_TOMBSTONE,
// dump a backtrace only back to the socket
DEBUGGER_ACTION_DUMP_BACKTRACE,
} debugger_action_t;
/* message sent over the socket */
typedef struct {
debugger_action_t action;
pid_t tid;
} debugger_msg_t;
#define RETRY_ON_EINTR(ret,cond) \ #define RETRY_ON_EINTR(ret,cond) \
do { \ do { \
ret = (cond); \ ret = (cond); \
@ -146,7 +163,7 @@ void debugger_signal_handler(int n, siginfo_t* info, void* unused)
logSignalSummary(n, info); logSignalSummary(n, info);
tid = gettid(); tid = gettid();
s = socket_abstract_client("android:debuggerd", SOCK_STREAM); s = socket_abstract_client(DEBUGGER_SOCKET_NAME, SOCK_STREAM);
if (s >= 0) { if (s >= 0) {
/* debugger knows our pid from the credentials on the /* debugger knows our pid from the credentials on the
@ -155,9 +172,11 @@ void debugger_signal_handler(int n, siginfo_t* info, void* unused)
* that's actually in our process * that's actually in our process
*/ */
int ret; int ret;
debugger_msg_t msg;
RETRY_ON_EINTR(ret, write(s, &tid, sizeof(unsigned))); msg.action = DEBUGGER_ACTION_CRASH;
if (ret == sizeof(unsigned)) { msg.tid = tid;
RETRY_ON_EINTR(ret, write(s, &msg, sizeof(msg)));
if (ret == sizeof(msg)) {
/* if the write failed, there is no point to read on /* if the write failed, there is no point to read on
* the file descriptor. */ * the file descriptor. */
RETRY_ON_EINTR(ret, read(s, &tid, 1)); RETRY_ON_EINTR(ret, read(s, &tid, 1));