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% PT_INSN_GET_IMAGE(3)
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! Copyright (c) 2015-2017, Intel Corporation
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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 are met:
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!
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! * Redistributions of source code must retain the above copyright notice,
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! this list of conditions and the following disclaimer.
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! * Redistributions in binary form must reproduce the above copyright notice,
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! this list of conditions and the following disclaimer in the documentation
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! and/or other materials provided with the distribution.
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! * Neither the name of Intel Corporation nor the names of its contributors
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! may be used to endorse or promote products derived from this software
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! without specific prior written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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! AND 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 COPYRIGHT OWNER OR CONTRIBUTORS BE
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! LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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! CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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! SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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! INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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! CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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! ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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! POSSIBILITY OF SUCH DAMAGE.
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!-->
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# NAME
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pt_insn_get_image, pt_insn_set_image, pt_blk_get_image, pt_blk_set_image -
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get/set an Intel(R) Processor Trace instruction flow or block decoder's traced
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memory image descriptor
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# SYNOPSIS
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| **\#include `<intel-pt.h>`**
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| **struct pt_image \*pt_insn_get_image(struct pt_insn_decoder \**decoder*);**
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| **struct pt_image \*pt_blk_get_image(struct pt_block_decoder \**decoder*);**
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| **int pt_insn_set_image(struct pt_insn_decoder \**decoder*,**
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| **struct pt_image \**image*);**
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| **int pt_blk_set_image(struct pt_block_decoder \**decoder*,**
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| **struct pt_image \**image*);**
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Link with *-lipt*.
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# DESCRIPTION
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**pt_insn_get_image**() and **pt_blk_get_image**() return the traced memory
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*image descriptor that decoder* uses for reading instruction memory. See
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***pt_image_alloc**(3). Every decoder comes with a default *pt_image* object
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*that is initially empty and that will automatically be destroyed when the
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*decoder is freed.
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**pt_insn_set_image**() and **pt_blk_set_image**() set the traced memory image
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descriptor that *decoder* uses for reading instruction memory. If the *image*
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argument is NULL, sets *decoder*'s image to be its default image. The user is
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responsible for freeing the *pt_image* object that *image* points to when it is
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no longer needed.
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# RETURN VALUE
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**pt_insn_get_image**() and **pt_blk_get_image**() return a pointer to
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*decoder*'s *pt_image* object. The returned pointer is NULL if the *decoder*
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argument is NULL.
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**pt_insn_set_image**() and **pt_blk_set_image**() return zero on success or a
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negative *pt_error_code* enumeration constant in case of an error.
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# ERRORS
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pte_invalid
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: The *decoder* argument is NULL.
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# NOTES
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One *pt_image* object must not be shared between multiple decoders. Use
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**pt_image_copy**(3) to copy a common image.
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# SEE ALSO
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**pt_insn_alloc_decoder**(3), **pt_insn_free_decoder**(3), **pt_insn_next**(3),
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**pt_blk_alloc_decoder**(3), **pt_blk_free_decoder**(3), **pt_blk_next**(3)
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