Enables ADBD tracing in the emulator. (28781b0a) · Commits · e / os / android_system_core

adb/adb.c

+55 −0

Original line number	Diff line number	Diff line
		@@ -131,6 +131,58 @@ void adb_trace_init(void)
		}
		}

		#if !ADB_HOST
		/*
		* Implements ADB tracing inside the emulator.
		*/

		#include <stdarg.h>

		/*
		* Redefine open and write for qemu_pipe.h that contains inlined references
		* to those routines. We will redifine them back after qemu_pipe.h inclusion.
		*/

		#undef open
		#undef write
		#define open adb_open
		#define write adb_write
		#include <hardware/qemu_pipe.h>
		#undef open
		#undef write
		#define open ___xxx_open
		#define write ___xxx_write

		/* A handle to adb-debug qemud service in the emulator. */
		int adb_debug_qemu = -1;

		/* Initializes connection with the adb-debug qemud service in the emulator. */
		static int adb_qemu_trace_init(void)
		{
		char con_name[32];

		if (adb_debug_qemu >= 0) {
		return 0;
		}

		/* adb debugging QEMUD service connection request. */
		snprintf(con_name, sizeof(con_name), "qemud:adb-debug");
		adb_debug_qemu = qemu_pipe_open(con_name);
		return (adb_debug_qemu >= 0) ? 0 : -1;
		}

		void adb_qemu_trace(const char* fmt, ...)
		{
		va_list args;
		va_start(args, fmt);
		char msg[1024];

		if (adb_debug_qemu >= 0) {
		vsnprintf(msg, sizeof(msg), fmt, args);
		adb_write(adb_debug_qemu, msg, strlen(msg));
		}
		}
		#endif /* !ADB_HOST */

		apacket *get_apacket(void)
		{
		@@ -1297,6 +1349,9 @@ int main(int argc, char **argv)
		D("Handling commandline()\n");
		return adb_commandline(argc - 1, argv + 1);
		#else
		/* If adbd runs inside the emulator this will enable adb tracing via
		* adb-debug qemud service in the emulator. */
		adb_qemu_trace_init();
		if((argc > 1) && (!strcmp(argv[1],"recovery"))) {
		adb_device_banner = "recovery";
		recovery_mode = 1;

adb/adb.h

+15 −0

Original line number	Diff line number	Diff line
		@@ -345,6 +345,21 @@ typedef enum {

		#if ADB_TRACE

		#if !ADB_HOST
		/*
		* When running inside the emulator, guest's adbd can connect to 'adb-debug'
		* qemud service that can display adb trace messages (on condition that emulator
		* has been started with '-debug adb' option).
		*/

		/* Delivers a trace message to the emulator via QEMU pipe. */
		void adb_qemu_trace(const char* fmt, ...);
		/* Macro to use to send ADB trace messages to the emulator. */
		#define DQ(...) adb_qemu_trace(__VA_ARGS__)
		#else
		#define DQ(...) ((void)0)
		#endif /* !ADB_HOST */

		extern int adb_trace_mask;
		extern unsigned char adb_trace_output_count;
		void adb_trace_init(void);