| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| // You can increase the verbosity of debug traces by defining the LD_DEBUG |
| // environment variable to a numeric value from 0 to 2 (corresponding to |
| // INFO, TRACE, and DEBUG calls in the source). This will only |
| // affect new processes being launched. |
| |
| // By default, traces are sent to logcat, with the "linker" tag. You can |
| // change this to go to stdout instead by setting the definition of |
| // LINKER_DEBUG_TO_LOG to 0. |
| #define LINKER_DEBUG_TO_LOG 1 |
| |
| #define TRACE_DEBUG 1 |
| #define DO_TRACE_LOOKUP 1 |
| #define DO_TRACE_RELO 1 |
| #define DO_TRACE_IFUNC 1 |
| #define TIMING 0 |
| #define STATS 0 |
| |
| /********************************************************************* |
| * You shouldn't need to modify anything below unless you are adding |
| * more debugging information. |
| * |
| * To enable/disable specific debug options, change the defines above |
| *********************************************************************/ |
| |
| #include <stdarg.h> |
| #include <unistd.h> |
| |
| #include <async_safe/log.h> |
| #include <async_safe/CHECK.h> |
| |
| #define LINKER_VERBOSITY_PRINT (-1) |
| #define LINKER_VERBOSITY_INFO 0 |
| #define LINKER_VERBOSITY_TRACE 1 |
| #define LINKER_VERBOSITY_DEBUG 2 |
| |
| __LIBC_HIDDEN__ extern int g_ld_debug_verbosity; |
| |
| __LIBC_HIDDEN__ void linker_log_va_list(int prio, const char* fmt, va_list ap); |
| __LIBC_HIDDEN__ void linker_log(int prio, const char* fmt, ...) __printflike(2, 3); |
| |
| #define _PRINTVF(v, x...) \ |
| do { \ |
| if (g_ld_debug_verbosity > (v)) linker_log((v), x); \ |
| } while (0) |
| |
| #define PRINT(x...) _PRINTVF(LINKER_VERBOSITY_PRINT, x) |
| #define INFO(x...) _PRINTVF(LINKER_VERBOSITY_INFO, x) |
| #define TRACE(x...) _PRINTVF(LINKER_VERBOSITY_TRACE, x) |
| |
| #if TRACE_DEBUG |
| #define DEBUG(x...) _PRINTVF(LINKER_VERBOSITY_DEBUG, "DEBUG: " x) |
| #else /* !TRACE_DEBUG */ |
| #define DEBUG(x...) do {} while (0) |
| #endif /* TRACE_DEBUG */ |
| |
| #define TRACE_TYPE(t, x...) do { if (DO_TRACE_##t) { TRACE(x); } } while (0) |