bionic/linker/linker_debug.h
Elliott Hughes ca0c11bd82 Use more types than just 'unsigned' in the linker.
Still chipping away at the situation where every variable in the
linker was of type 'unsigned'. This patch switches counts over to
being size_t and adds an explicit type for init/fini function pointers
and arrays of function pointers.

Also improve logging from CallArray.

Also remove trailing "\n"s from log messages.

Change-Id: Ie036d2622caac50f4d29f0570888bb527661d77e
2013-03-12 11:26:56 -07:00

90 lines
3.3 KiB
C

/*
* Copyright (C) 2008-2010 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.
*/
#ifndef _LINKER_DEBUG_H_
#define _LINKER_DEBUG_H_
#include <stdio.h>
// 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 TIMING 0
#define STATS 0
#define COUNT_PAGES 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 <private/debug_format.h>
__LIBC_HIDDEN__ extern int gLdDebugVerbosity;
#if LINKER_DEBUG_TO_LOG
#define _PRINTVF(v,x...) \
do { \
if (gLdDebugVerbosity > (v)) __libc_format_log(5-(v),"linker",x); \
} while (0)
#else /* !LINKER_DEBUG_TO_LOG */
#define _PRINTVF(v,x...) \
do { \
if (gLdDebugVerbosity > (v)) { __libc_format_fd(1, x); write(1, "\n", 1); } \
} while (0)
#endif /* !LINKER_DEBUG_TO_LOG */
#define PRINT(x...) _PRINTVF(-1, x)
#define INFO(x...) _PRINTVF(0, x)
#define TRACE(x...) _PRINTVF(1, x)
#if TRACE_DEBUG
#define DEBUG(x...) _PRINTVF(2, "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)
#endif /* _LINKER_DEBUG_H_ */