50184c26c7
Collect macro call/nesting information for the benefit of the debug back end. So far, the only backend for which this is provided is the debug back end, to show what information is present. Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>
115 lines
4.2 KiB
C
115 lines
4.2 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 2020 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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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
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* conditions are met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* dbginfo.h - debugging info structures
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*/
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#ifndef NASM_DBGINFO_H
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#define NASM_DBGINFO_H
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#include "compiler.h"
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#include "srcfile.h"
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#include "rbtree.h"
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struct debug_macro_def; /* Definition */
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struct debug_macro_inv; /* Invocation */
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struct debug_macro_addr; /* Address range */
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/*
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* Definitions structure, one for each non-.nolist macro invoked
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* anywhere in the program; unique for each macro, even if a macro is
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* redefined and/or overloaded.
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*/
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struct debug_macro_def {
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struct debug_macro_def *next; /* List of definitions */
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const char *name; /* Macro name */
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struct src_location where; /* Start of definition */
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size_t ninv; /* Call count */
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};
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/*
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* Invocation structure. One for each invocation of a non-.nolist macro.
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*/
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struct debug_macro_inv_list {
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struct debug_macro_inv *l;
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size_t n;
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};
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struct debug_macro_inv {
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struct debug_macro_inv *next; /* List of same-level invocations */
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struct debug_macro_inv_list down;
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struct debug_macro_inv *up; /* Parent invocation */
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struct debug_macro_def *def; /* Macro definition */
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struct src_location where; /* Start of invocation */
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struct { /* Address range pointers */
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struct rbtree *tree; /* rbtree of address ranges */
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struct debug_macro_addr *last; /* Quick lookup for latest section */
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} addr;
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uint32_t naddr; /* Number of address ranges */
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int32_t lastseg; /* lastaddr segment number */
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};
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/*
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* Address range structure. An rbtree containing one address range for each
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* section which this particular macro has generated code/data/space into.
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*/
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struct debug_macro_addr {
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struct rbtree tree; /* rbtree; key = index, must be first */
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struct debug_macro_addr *up; /* same section in parent invocation */
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uint64_t start; /* starting offset */
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uint64_t len; /* length of range */
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};
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/*
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* Complete information structure */
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struct debug_macro_info {
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struct debug_macro_inv_list inv;
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struct debug_macro_def_list {
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struct debug_macro_def *l;
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size_t n;
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} def;
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};
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static inline int32_t debug_macro_seg(const struct debug_macro_addr *dma)
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{
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return dma->tree.key;
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}
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/* Get/create a addr structure for the macro we are emitting for */
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struct debug_macro_addr *debug_macro_get_addr(int32_t seg);
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/* The macro we are currently emitting for, if any */
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extern struct debug_macro_inv *debug_current_macro;
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#endif /* NASM_DBGINFO_H */
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