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/* SPDX-License-Identifier: BSD-2-Clause */
/* Copyright 2020 The NASM Authors - All Rights Reserved */
/*
* dbginfo.h - debugging info structures
*/
#ifndef NASM_DBGINFO_H
#define NASM_DBGINFO_H
#include "compiler.h"
#include "srcfile.h"
#include "rbtree.h"
struct debug_macro_def; /* Definition */
struct debug_macro_inv; /* Invocation */
struct debug_macro_addr; /* Address range */
/*
* Definitions structure, one for each non-.nolist macro invoked
* anywhere in the program; unique for each macro, even if a macro is
* redefined and/or overloaded.
*/
struct debug_macro_def {
struct debug_macro_def *next; /* List of definitions */
const char *name; /* Macro name */
struct src_location where; /* Start of definition */
size_t ninv; /* Call count */
};
/*
* Invocation structure. One for each invocation of a non-.nolist macro.
*/
struct debug_macro_inv_list {
struct debug_macro_inv *l;
size_t n;
};
struct debug_macro_inv {
struct debug_macro_inv *next; /* List of same-level invocations */
struct debug_macro_inv_list down;
struct debug_macro_inv *up; /* Parent invocation */
struct debug_macro_def *def; /* Macro definition */
struct src_location where; /* Start of invocation */
struct { /* Address range pointers */
struct rbtree *tree; /* rbtree of address ranges */
struct debug_macro_addr *last; /* Quick lookup for latest section */
} addr;
uint32_t naddr; /* Number of address ranges */
int32_t lastseg; /* lastaddr segment number */
};
/*
* Address range structure. An rbtree containing one address range for each
* section which this particular macro has generated code/data/space into.
*/
struct debug_macro_addr {
struct rbtree tree; /* rbtree; key = index, must be first */
struct debug_macro_addr *up; /* same section in parent invocation */
uint64_t start; /* starting offset */
uint64_t len; /* length of range */
};
/*
* Complete information structure */
struct debug_macro_info {
struct debug_macro_inv_list inv;
struct debug_macro_def_list {
struct debug_macro_def *l;
size_t n;
} def;
};
static inline int32_t debug_macro_seg(const struct debug_macro_addr *dma)
{
return dma->tree.key;
}
/* Get/create a addr structure for the macro we are emitting for */
struct debug_macro_addr *debug_macro_get_addr(int32_t seg);
/* The macro we are currently emitting for, if any */
extern struct debug_macro_inv *debug_current_macro;
#endif /* NASM_DBGINFO_H */
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