53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <signal.h>
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#include <sys/mman.h>
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#include "linker.h"
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#include <sys/socket.h>
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#include <cutils/sockets.h>
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void notify_gdb_of_libraries();
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void debugger_signal_handler(int n)
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{
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unsigned tid;
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int s;
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/* avoid picking up GC interrupts */
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signal(SIGUSR1, SIG_IGN);
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tid = gettid();
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s = socket_local_client("android:debuggerd",
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ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM);
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if(s >= 0) {
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/* debugger knows our pid from the credentials on the
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* local socket but we need to tell it our tid. It
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* is paranoid and will verify that we are giving a tid
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* that's actually in our process
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*/
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write(s, &tid, sizeof(unsigned));
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read(s, &tid, 1);
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notify_gdb_of_libraries();
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close(s);
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}
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/* remove our net so we fault for real when we return */
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signal(n, SIG_IGN);
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}
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void debugger_init()
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{
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signal(SIGILL, debugger_signal_handler);
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signal(SIGABRT, debugger_signal_handler);
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signal(SIGBUS, debugger_signal_handler);
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signal(SIGFPE, debugger_signal_handler);
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signal(SIGSEGV, debugger_signal_handler);
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signal(SIGSTKFLT, debugger_signal_handler);
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}
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