mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2026-08-26 11:17:30 +08:00
Chris Johns
3b0de038c7
The block logic uses realloc to resize memory used by libdebugger when creating a snapshot of threads. Thread registers take a reference to the block and if a realloc changes the base address any references are invalid. Add rebase handler support to blocks that is called when the block base changes and add a handler to thread register blocks to rebase a thread's registers. Exclude threads using both types of names they can have. This lets all names be reported in extra thread info packets. Closes #5635
90 lines
3.1 KiB
C
90 lines
3.1 KiB
C
/*
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* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Debugger for RTEMS.
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*/
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#ifndef _RTEMS_DEBUGGER_BLOCK_h
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#define _RTEMS_DEBUGGER_BLOCK_h
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#include <rtems/rtems-debugger.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* Block resize base change handler. This is called when a block resize
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* moves the base address of the block. The handler is called with the
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* previous and new values and you can call transform to relocate your
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* pointer to the new base.
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*/
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typedef void (*rtems_debugger_block_rebase)(void* previous, void* new);
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/**
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* DB server block manages a block of re-sizable memory. The block only
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* grows. As more threads enter the system the block becomes the peak and then
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* sits at that level.
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*/
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typedef struct rtems_debugger_block {
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void* block; /**< The block of memory. */
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size_t step; /**< The step size the block is increased by. */
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size_t size; /**< The size of the elements in the block. */
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size_t count; /**< The number of elements in the block. */
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size_t level; /**< The usage level in the block. */
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rtems_debugger_block_rebase rebaser; /**< Rebase handler if set */
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} rtems_debugger_block;
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/**
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* Create a block.
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*/
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extern int rtems_debugger_block_create(rtems_debugger_block* block, size_t step,
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size_t size,
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rtems_debugger_block_rebase rebaser);
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/**
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* Destroy a block.
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*/
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extern int rtems_debugger_block_destroy(rtems_debugger_block* block);
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/**
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* Resize a block.
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*/
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extern int rtems_debugger_block_resize(rtems_debugger_block* block);
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/**
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* Transform a pointer to a new base. Using when rebasing.
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*/
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extern void* rtems_debugger_block_transform(void* previous, void* new,
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void* addr);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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