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Diffstat (limited to 'vere/ext/nasm/include/dbginfo.h')
| -rw-r--r-- | vere/ext/nasm/include/dbginfo.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/vere/ext/nasm/include/dbginfo.h b/vere/ext/nasm/include/dbginfo.h new file mode 100644 index 0000000..8584eda --- /dev/null +++ b/vere/ext/nasm/include/dbginfo.h @@ -0,0 +1,115 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 2020 The NASM Authors - All Rights Reserved + * See the file AUTHORS included with the NASM distribution for + * the specific copyright holders. + * + * 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. + * + * ----------------------------------------------------------------------- */ + +/* + * 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 */ |