1268 lines
28 KiB
C
1268 lines
28 KiB
C
/*
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* File hash.c - generate hash tables for Wine debugger symbols
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*
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* Copyright (C) 1993, Eric Youngdale.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <sys/types.h>
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#include <neexe.h>
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#include "module.h"
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#include "selectors.h"
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#include "debugger.h"
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#include "toolhelp.h"
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#include "xmalloc.h"
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#define NR_NAME_HASH 16384
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#ifndef PATH_MAX
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#define PATH_MAX _MAX_PATH
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#endif
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static char * reg_name[] =
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{
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"eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi"
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};
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struct name_hash
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{
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struct name_hash * next; /* Used to look up within name hash */
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char * name;
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char * sourcefile;
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int n_locals;
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int locals_alloc;
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WineLocals * local_vars;
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int n_lines;
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int lines_alloc;
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WineLineNo * linetab;
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DBG_ADDR addr;
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unsigned short flags;
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unsigned short breakpoint_offset;
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unsigned int symbol_size;
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};
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static BOOL32 DEBUG_GetStackSymbolValue( const char * name, DBG_ADDR *addr );
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static int sortlist_valid = FALSE;
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static int sorttab_nsym;
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static struct name_hash ** addr_sorttab = NULL;
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static struct name_hash * name_hash_table[NR_NAME_HASH];
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static unsigned int name_hash( const char * name )
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{
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unsigned int hash = 0;
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unsigned int tmp;
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const char * p;
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p = name;
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while (*p)
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{
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hash = (hash << 4) + *p++;
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if( (tmp = (hash & 0xf0000000)) )
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{
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hash ^= tmp >> 24;
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}
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hash &= ~tmp;
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}
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return hash % NR_NAME_HASH;
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}
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int
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DEBUG_cmp_sym(const void * p1, const void * p2)
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{
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struct name_hash ** name1 = (struct name_hash **) p1;
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struct name_hash ** name2 = (struct name_hash **) p2;
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if( ((*name1)->flags & SYM_INVALID) != 0 )
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{
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return -1;
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}
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if( ((*name2)->flags & SYM_INVALID) != 0 )
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{
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return 1;
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}
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if( (*name1)->addr.seg > (*name2)->addr.seg )
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{
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return 1;
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}
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if( (*name1)->addr.seg < (*name2)->addr.seg )
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{
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return -1;
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}
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if( (*name1)->addr.off > (*name2)->addr.off )
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{
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return 1;
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}
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if( (*name1)->addr.off < (*name2)->addr.off )
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{
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return -1;
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}
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return 0;
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}
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/***********************************************************************
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* DEBUG_ResortSymbols
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*
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* Rebuild sorted list of symbols.
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*/
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static
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void
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DEBUG_ResortSymbols()
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{
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struct name_hash *nh;
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int nsym = 0;
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int i;
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for(i=0; i<NR_NAME_HASH; i++)
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{
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for (nh = name_hash_table[i]; nh; nh = nh->next)
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{
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nsym++;
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}
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}
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sorttab_nsym = nsym;
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if( nsym == 0 )
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{
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return;
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}
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addr_sorttab = (struct name_hash **) xrealloc(addr_sorttab,
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nsym * sizeof(struct name_hash *));
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nsym = 0;
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for(i=0; i<NR_NAME_HASH; i++)
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{
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for (nh = name_hash_table[i]; nh; nh = nh->next)
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{
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addr_sorttab[nsym++] = nh;
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}
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}
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qsort(addr_sorttab, nsym,
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sizeof(struct name_hash *), DEBUG_cmp_sym);
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sortlist_valid = TRUE;
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}
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/***********************************************************************
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* DEBUG_AddSymbol
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*
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* Add a symbol to the table.
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*/
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struct name_hash *
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DEBUG_AddSymbol( const char * name, const DBG_ADDR *addr, const char * source,
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int flags)
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{
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struct name_hash * new;
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struct name_hash *nh;
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static char prev_source[PATH_MAX] = {'\0', };
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static char * prev_duped_source = NULL;
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char * c;
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int hash;
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hash = name_hash(name);
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for (nh = name_hash_table[hash]; nh; nh = nh->next)
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{
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if( ((nh->flags & SYM_INVALID) != 0) && strcmp(name, nh->name) == 0 )
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{
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nh->addr.off = addr->off;
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nh->addr.seg = addr->seg;
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if( nh->addr.type == NULL && addr->type != NULL )
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{
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nh->addr.type = addr->type;
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}
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nh->flags &= ~SYM_INVALID;
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return nh;
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}
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if (nh->addr.seg == addr->seg &&
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nh->addr.off == addr->off &&
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strcmp(name, nh->name) == 0 )
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{
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return nh;
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}
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}
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/*
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* First see if we already have an entry for this symbol. If so
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* return it, so we don't end up with duplicates.
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*/
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new = (struct name_hash *) xmalloc(sizeof(struct name_hash));
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new->addr = *addr;
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new->name = xstrdup(name);
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if( source != NULL )
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{
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/*
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* This is an enhancement to reduce memory consumption. The idea
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* is that we duplicate a given string only once. This is a big
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* win if there are lots of symbols defined in a given source file.
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*/
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if( strcmp(source, prev_source) == 0 )
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{
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new->sourcefile = prev_duped_source;
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}
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else
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{
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strcpy(prev_source, source);
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prev_duped_source = new->sourcefile = xstrdup(source);
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}
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}
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else
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{
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new->sourcefile = NULL;
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}
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new->n_lines = 0;
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new->lines_alloc = 0;
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new->linetab = NULL;
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new->n_locals = 0;
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new->locals_alloc = 0;
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new->local_vars = NULL;
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new->flags = flags;
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new->next = NULL;
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/* Now insert into the hash table */
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new->next = name_hash_table[hash];
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name_hash_table[hash] = new;
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/*
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* Check some heuristics based upon the file name to see whether
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* we want to step through this guy or not. These are machine generated
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* assembly files that are used to translate between the MS way of
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* calling things and the GCC way of calling things. In general we
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* always want to step through.
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*/
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if( source != NULL )
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{
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c = strrchr(source, '.');
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if( c != NULL && strcmp(c, ".s") == 0 )
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{
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c = strrchr(source, '/');
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if( c != NULL )
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{
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c++;
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if( (strcmp(c, "callfrom16.s") == 0)
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|| (strcmp(c, "callto16.s") == 0)
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|| (strcmp(c, "callfrom32.s") == 0)
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|| (strcmp(c, "callto32.s") == 0) )
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{
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new->flags |= SYM_TRAMPOLINE;
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}
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}
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}
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}
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sortlist_valid = FALSE;
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return new;
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}
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BOOL32 DEBUG_Normalize(struct name_hash * nh )
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{
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/*
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* We aren't adding any more locals or linenumbers to this function.
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* Free any spare memory that we might have allocated.
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*/
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if( nh == NULL )
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{
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return TRUE;
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}
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if( nh->n_locals != nh->locals_alloc )
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{
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nh->locals_alloc = nh->n_locals;
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nh->local_vars = xrealloc(nh->local_vars,
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nh->locals_alloc * sizeof(WineLocals));
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}
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if( nh->n_lines != nh->lines_alloc )
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{
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nh->lines_alloc = nh->n_lines;
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nh->linetab = xrealloc(nh->linetab,
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nh->lines_alloc * sizeof(WineLineNo));
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}
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return TRUE;
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}
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/***********************************************************************
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* DEBUG_GetSymbolValue
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*
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* Get the address of a named symbol.
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*/
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BOOL32 DEBUG_GetSymbolValue( const char * name, const int lineno,
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DBG_ADDR *addr, int bp_flag )
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{
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char buffer[256];
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struct name_hash *nh;
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for(nh = name_hash_table[name_hash(name)]; nh; nh = nh->next)
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{
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if( (nh->flags & SYM_INVALID) != 0 )
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{
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continue;
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}
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if (!strcmp(nh->name, name)) break;
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}
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if (!nh && (name[0] != '_'))
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{
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buffer[0] = '_';
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strcpy(buffer+1, name);
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for(nh = name_hash_table[name_hash(buffer)]; nh; nh = nh->next)
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{
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if( (nh->flags & SYM_INVALID) != 0 )
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{
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continue;
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}
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if (!strcmp(nh->name, buffer)) break;
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}
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}
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/*
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* If we don't have anything here, then try and see if this
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* is a local symbol to the current stack frame. No matter
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* what, we have nothing more to do, so we let that function
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* decide what we ultimately return.
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*/
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if (!nh)
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{
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return DEBUG_GetStackSymbolValue(name, addr);
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}
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return DEBUG_GetLineNumberAddr( nh, lineno, addr, bp_flag );
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}
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/***********************************************************************
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* DEBUG_GetLineNumberAddr
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*
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* Get the address of a named symbol.
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*/
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BOOL32 DEBUG_GetLineNumberAddr( struct name_hash * nh, const int lineno,
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DBG_ADDR *addr, int bp_flag )
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{
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int i;
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if( lineno == -1 )
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{
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*addr = nh->addr;
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if( bp_flag )
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{
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addr->off += nh->breakpoint_offset;
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}
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}
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else
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{
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/*
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* Search for the specific line number. If we don't find it,
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* then return FALSE.
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*/
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if( nh->linetab == NULL )
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{
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return FALSE;
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}
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for(i=0; i < nh->n_lines; i++ )
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{
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if( nh->linetab[i].line_number == lineno )
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{
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*addr = nh->linetab[i].pc_offset;
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return TRUE;
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}
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}
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/*
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* This specific line number not found.
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*/
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return FALSE;
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}
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return TRUE;
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}
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/***********************************************************************
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* DEBUG_SetSymbolValue
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*
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* Set the address of a named symbol.
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*/
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BOOL32 DEBUG_SetSymbolValue( const char * name, const DBG_ADDR *addr )
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{
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char buffer[256];
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struct name_hash *nh;
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for(nh = name_hash_table[name_hash(name)]; nh; nh = nh->next)
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if (!strcmp(nh->name, name)) break;
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if (!nh && (name[0] != '_'))
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{
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buffer[0] = '_';
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strcpy(buffer+1, name);
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for(nh = name_hash_table[name_hash(buffer)]; nh; nh = nh->next)
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if (!strcmp(nh->name, buffer)) break;
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}
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if (!nh) return FALSE;
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nh->addr = *addr;
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nh->flags &= SYM_INVALID;
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DBG_FIX_ADDR_SEG( &nh->addr, DS_reg(&DEBUG_context) );
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return TRUE;
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}
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/***********************************************************************
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* DEBUG_FindNearestSymbol
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*
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* Find the symbol nearest to a given address.
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* If ebp is specified as non-zero, it means we should dump the argument
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* list into the string we return as well.
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*/
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const char * DEBUG_FindNearestSymbol( const DBG_ADDR *addr, int flag,
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struct name_hash ** rtn,
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unsigned int ebp,
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struct list_id * source)
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{
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static char name_buffer[MAX_PATH + 256];
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static char arglist[1024];
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static char argtmp[256];
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struct name_hash * nearest = NULL;
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int mid, high, low;
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unsigned int * ptr;
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int lineno;
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char * lineinfo, *sourcefile;
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int i;
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char linebuff[16];
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if( rtn != NULL )
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{
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*rtn = NULL;
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}
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if( source != NULL )
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{
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source->sourcefile = NULL;
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source->line = -1;
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}
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if( sortlist_valid == FALSE )
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{
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DEBUG_ResortSymbols();
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}
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if( sortlist_valid == FALSE )
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{
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return NULL;
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}
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/*
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* FIXME - use the binary search that we added to
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* the function DEBUG_CheckLinenoStatus. Better yet, we should
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* probably keep some notion of the current function so we don't
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* have to search every time.
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*/
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/*
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* Binary search to find closest symbol.
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*/
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low = 0;
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high = sorttab_nsym;
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if( addr_sorttab[0]->addr.seg > addr->seg
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|| ( addr_sorttab[0]->addr.seg == addr->seg
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&& addr_sorttab[0]->addr.off > addr->off) )
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{
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nearest = NULL;
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}
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else if( addr_sorttab[high - 1]->addr.seg < addr->seg
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|| ( addr_sorttab[high - 1]->addr.seg == addr->seg
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&& addr_sorttab[high - 1]->addr.off < addr->off) )
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{
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nearest = addr_sorttab[high - 1];
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}
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else
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{
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while(1==1)
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{
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mid = (high + low)/2;
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if( mid == low )
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{
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/*
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* See if there are any other entries that might also
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* have the same address, and would also have a line
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* number table.
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*/
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if( mid > 0 && addr_sorttab[mid]->linetab == NULL )
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{
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if( (addr_sorttab[mid - 1]->addr.seg ==
|
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addr_sorttab[mid]->addr.seg)
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&& (addr_sorttab[mid - 1]->addr.off ==
|
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addr_sorttab[mid]->addr.off)
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&& (addr_sorttab[mid - 1]->linetab != NULL) )
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{
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mid--;
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}
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}
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if( (mid < sorttab_nsym - 1)
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&& (addr_sorttab[mid]->linetab == NULL) )
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{
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if( (addr_sorttab[mid + 1]->addr.seg ==
|
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addr_sorttab[mid]->addr.seg)
|
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&& (addr_sorttab[mid + 1]->addr.off ==
|
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addr_sorttab[mid]->addr.off)
|
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&& (addr_sorttab[mid + 1]->linetab != NULL) )
|
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{
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mid++;
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}
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}
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nearest = addr_sorttab[mid];
|
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#if 0
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fprintf(stderr, "Found %x:%x when looking for %x:%x %x %s\n",
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addr_sorttab[mid ]->addr.seg,
|
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addr_sorttab[mid ]->addr.off,
|
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addr->seg, addr->off,
|
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addr_sorttab[mid ]->linetab,
|
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addr_sorttab[mid ]->name);
|
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#endif
|
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break;
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}
|
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if( (addr_sorttab[mid]->addr.seg < addr->seg)
|
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|| ( addr_sorttab[mid]->addr.seg == addr->seg
|
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&& addr_sorttab[mid]->addr.off <= addr->off) )
|
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{
|
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low = mid;
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}
|
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else
|
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{
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high = mid;
|
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}
|
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}
|
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}
|
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|
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if (!nearest) return NULL;
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|
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if( rtn != NULL )
|
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{
|
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*rtn = nearest;
|
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}
|
|
|
|
/*
|
|
* Fill in the relevant bits to the structure so that we can
|
|
* locate the source and line for this bit of code.
|
|
*/
|
|
if( source != NULL )
|
|
{
|
|
source->sourcefile = nearest->sourcefile;
|
|
if( nearest->linetab == NULL )
|
|
{
|
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source->line = -1;
|
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}
|
|
else
|
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{
|
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source->line = nearest->linetab[0].line_number;
|
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}
|
|
}
|
|
|
|
lineinfo = "";
|
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lineno = -1;
|
|
|
|
/*
|
|
* Prepare to display the argument list. If ebp is specified, it is
|
|
* the framepointer for the function in question. If not specified,
|
|
* we don't want the arglist.
|
|
*/
|
|
memset(arglist, '\0', sizeof(arglist));
|
|
if( ebp != 0 )
|
|
{
|
|
for(i=0; i < nearest->n_locals; i++ )
|
|
{
|
|
/*
|
|
* If this is a register (offset == 0) or a local
|
|
* variable, we don't want to know about it.
|
|
*/
|
|
if( nearest->local_vars[i].offset <= 0 )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
ptr = (unsigned int *) (ebp + nearest->local_vars[i].offset);
|
|
if( arglist[0] == '\0' )
|
|
{
|
|
arglist[0] = '(';
|
|
}
|
|
else
|
|
{
|
|
strcat(arglist, ", ");
|
|
}
|
|
|
|
sprintf(argtmp, "%s=0x%x", nearest->local_vars[i].name,
|
|
*ptr);
|
|
strcat(arglist, argtmp);
|
|
}
|
|
if( arglist[0] == '(' )
|
|
{
|
|
strcat(arglist, ")");
|
|
}
|
|
}
|
|
|
|
if( (nearest->sourcefile != NULL) && (flag == TRUE)
|
|
&& (addr->off - nearest->addr.off < 0x100000) )
|
|
{
|
|
|
|
/*
|
|
* Try and find the nearest line number to the current offset.
|
|
*/
|
|
if( nearest->linetab != NULL )
|
|
{
|
|
/*
|
|
* FIXME - this is an inefficient linear search. A binary
|
|
* search would be better if this gets to be a performance
|
|
* bottleneck.
|
|
*/
|
|
for(i=0; i < nearest->n_lines; i++)
|
|
{
|
|
if( addr->off < nearest->linetab[i].pc_offset.off )
|
|
{
|
|
break;
|
|
}
|
|
lineno = nearest->linetab[i].line_number;
|
|
}
|
|
}
|
|
|
|
if( lineno != -1 )
|
|
{
|
|
sprintf(linebuff, ":%d", lineno);
|
|
lineinfo = linebuff;
|
|
if( source != NULL )
|
|
{
|
|
source->line = lineno;
|
|
}
|
|
}
|
|
|
|
/* Remove the path from the file name */
|
|
sourcefile = strrchr( nearest->sourcefile, '/' );
|
|
if (!sourcefile) sourcefile = nearest->sourcefile;
|
|
else sourcefile++;
|
|
|
|
if (addr->off == nearest->addr.off)
|
|
sprintf( name_buffer, "%s%s [%s%s]", nearest->name,
|
|
arglist, sourcefile, lineinfo);
|
|
else
|
|
sprintf( name_buffer, "%s+0x%lx%s [%s%s]", nearest->name,
|
|
addr->off - nearest->addr.off,
|
|
arglist, sourcefile, lineinfo );
|
|
}
|
|
else
|
|
{
|
|
if (addr->off == nearest->addr.off)
|
|
sprintf( name_buffer, "%s%s", nearest->name, arglist);
|
|
else
|
|
sprintf( name_buffer, "%s+0x%lx%s", nearest->name,
|
|
addr->off - nearest->addr.off, arglist);
|
|
}
|
|
return name_buffer;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DEBUG_ReadSymbolTable
|
|
*
|
|
* Read a symbol file into the hash table.
|
|
*/
|
|
void DEBUG_ReadSymbolTable( const char * filename )
|
|
{
|
|
FILE * symbolfile;
|
|
DBG_ADDR addr = { 0, 0 };
|
|
int nargs;
|
|
char type;
|
|
char * cpnt;
|
|
char buffer[256];
|
|
char name[256];
|
|
|
|
if (!(symbolfile = fopen(filename, "r")))
|
|
{
|
|
fprintf( stderr, "Unable to open symbol table %s\n", filename );
|
|
return;
|
|
}
|
|
|
|
fprintf( stderr, "Reading symbols from file %s\n", filename );
|
|
|
|
while (1)
|
|
{
|
|
fgets( buffer, sizeof(buffer), symbolfile );
|
|
if (feof(symbolfile)) break;
|
|
|
|
/* Strip any text after a # sign (i.e. comments) */
|
|
cpnt = buffer;
|
|
while (*cpnt)
|
|
if(*cpnt++ == '#') { *cpnt = 0; break; }
|
|
|
|
/* Quietly ignore any lines that have just whitespace */
|
|
cpnt = buffer;
|
|
while(*cpnt)
|
|
{
|
|
if(*cpnt != ' ' && *cpnt != '\t') break;
|
|
cpnt++;
|
|
}
|
|
if (!(*cpnt) || *cpnt == '\n') continue;
|
|
|
|
nargs = sscanf(buffer, "%lx %c %s", &addr.off, &type, name);
|
|
DEBUG_AddSymbol( name, &addr, NULL, SYM_WINE );
|
|
}
|
|
fclose(symbolfile);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* DEBUG_LoadEntryPoints
|
|
*
|
|
* Load the entry points of all the modules into the hash table.
|
|
*/
|
|
void DEBUG_LoadEntryPoints(void)
|
|
{
|
|
MODULEENTRY entry;
|
|
NE_MODULE *pModule;
|
|
DBG_ADDR addr;
|
|
char buffer[256];
|
|
unsigned char *cpnt, *name;
|
|
FARPROC16 address;
|
|
BOOL32 ok;
|
|
|
|
for (ok = ModuleFirst(&entry); ok; ok = ModuleNext(&entry))
|
|
{
|
|
if (!(pModule = MODULE_GetPtr( entry.hModule ))) continue;
|
|
if (pModule->flags & NE_FFLAGS_WIN32) continue;
|
|
|
|
name = (unsigned char *)pModule + pModule->name_table;
|
|
|
|
fprintf( stderr, " %.*s",*name, name + 1 );
|
|
|
|
/* First search the resident names */
|
|
|
|
cpnt = (unsigned char *)pModule + pModule->name_table;
|
|
while (*cpnt)
|
|
{
|
|
cpnt += *cpnt + 1 + sizeof(WORD);
|
|
sprintf( buffer, "%.*s_%.*s", *name, name + 1, *cpnt, cpnt + 1 );
|
|
if ((address = MODULE_GetEntryPoint( entry.hModule,
|
|
*(WORD *)(cpnt + *cpnt + 1) )))
|
|
{
|
|
addr.seg = HIWORD(address);
|
|
addr.off = LOWORD(address);
|
|
addr.type = NULL;
|
|
DEBUG_AddSymbol( buffer, &addr, NULL, SYM_WIN32 | SYM_FUNC );
|
|
}
|
|
}
|
|
|
|
/* Now search the non-resident names table */
|
|
|
|
if (!pModule->nrname_handle) continue; /* No non-resident table */
|
|
cpnt = (char *)GlobalLock16( pModule->nrname_handle );
|
|
while (*cpnt)
|
|
{
|
|
cpnt += *cpnt + 1 + sizeof(WORD);
|
|
sprintf( buffer, "%.*s_%.*s", *name, name + 1, *cpnt, cpnt + 1 );
|
|
if ((address = MODULE_GetEntryPoint( entry.hModule,
|
|
*(WORD *)(cpnt + *cpnt + 1) )))
|
|
{
|
|
addr.seg = HIWORD(address);
|
|
addr.off = LOWORD(address);
|
|
addr.type = NULL;
|
|
DEBUG_AddSymbol( buffer, &addr, NULL, SYM_WIN32);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
DEBUG_AddLineNumber( struct name_hash * func, int line_num,
|
|
unsigned long offset )
|
|
{
|
|
if( func == NULL )
|
|
{
|
|
return;
|
|
}
|
|
|
|
if( func->n_lines + 1 >= func->lines_alloc )
|
|
{
|
|
func->lines_alloc += 64;
|
|
func->linetab = xrealloc(func->linetab,
|
|
func->lines_alloc * sizeof(WineLineNo));
|
|
}
|
|
|
|
func->linetab[func->n_lines].line_number = line_num;
|
|
func->linetab[func->n_lines].pc_offset.seg = func->addr.seg;
|
|
func->linetab[func->n_lines].pc_offset.off = func->addr.off + offset;
|
|
func->linetab[func->n_lines].pc_offset.type = NULL;
|
|
func->n_lines++;
|
|
}
|
|
|
|
|
|
struct wine_locals *
|
|
DEBUG_AddLocal( struct name_hash * func, int regno,
|
|
int offset,
|
|
int pc_start,
|
|
int pc_end,
|
|
char * name)
|
|
{
|
|
if( func == NULL )
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
if( func->n_locals + 1 >= func->locals_alloc )
|
|
{
|
|
func->locals_alloc += 32;
|
|
func->local_vars = xrealloc(func->local_vars,
|
|
func->locals_alloc * sizeof(WineLocals));
|
|
}
|
|
|
|
func->local_vars[func->n_locals].regno = regno;
|
|
func->local_vars[func->n_locals].offset = offset;
|
|
func->local_vars[func->n_locals].pc_start = pc_start;
|
|
func->local_vars[func->n_locals].pc_end = pc_end;
|
|
func->local_vars[func->n_locals].name = xstrdup(name);
|
|
func->local_vars[func->n_locals].type = NULL;
|
|
func->n_locals++;
|
|
|
|
return &func->local_vars[func->n_locals - 1];
|
|
}
|
|
|
|
void
|
|
DEBUG_DumpHashInfo()
|
|
{
|
|
int i;
|
|
int depth;
|
|
struct name_hash *nh;
|
|
|
|
/*
|
|
* Utility function to dump stats about the hash table.
|
|
*/
|
|
for(i=0; i<NR_NAME_HASH; i++)
|
|
{
|
|
depth = 0;
|
|
for (nh = name_hash_table[i]; nh; nh = nh->next)
|
|
{
|
|
depth++;
|
|
}
|
|
fprintf(stderr, "Bucket %d: %d\n", i, depth);
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DEBUG_CheckLinenoStatus
|
|
*
|
|
* Find the symbol nearest to a given address.
|
|
* If ebp is specified as non-zero, it means we should dump the argument
|
|
* list into the string we return as well.
|
|
*/
|
|
int DEBUG_CheckLinenoStatus( const DBG_ADDR *addr)
|
|
{
|
|
struct name_hash * nearest = NULL;
|
|
int mid, high, low;
|
|
int i;
|
|
|
|
if( sortlist_valid == FALSE )
|
|
{
|
|
DEBUG_ResortSymbols();
|
|
}
|
|
|
|
/*
|
|
* Binary search to find closest symbol.
|
|
*/
|
|
low = 0;
|
|
high = sorttab_nsym;
|
|
if( addr_sorttab[0]->addr.seg > addr->seg
|
|
|| ( addr_sorttab[0]->addr.seg == addr->seg
|
|
&& addr_sorttab[0]->addr.off > addr->off) )
|
|
{
|
|
nearest = NULL;
|
|
}
|
|
else if( addr_sorttab[high - 1]->addr.seg < addr->seg
|
|
|| ( addr_sorttab[high - 1]->addr.seg == addr->seg
|
|
&& addr_sorttab[high - 1]->addr.off < addr->off) )
|
|
{
|
|
nearest = addr_sorttab[high - 1];
|
|
}
|
|
else
|
|
{
|
|
while(1==1)
|
|
{
|
|
mid = (high + low)/2;
|
|
if( mid == low )
|
|
{
|
|
/*
|
|
* See if there are any other entries that might also
|
|
* have the same address, and would also have a line
|
|
* number table.
|
|
*/
|
|
if( mid > 0 && addr_sorttab[mid]->linetab == NULL )
|
|
{
|
|
if( (addr_sorttab[mid - 1]->addr.seg ==
|
|
addr_sorttab[mid]->addr.seg)
|
|
&& (addr_sorttab[mid - 1]->addr.off ==
|
|
addr_sorttab[mid]->addr.off)
|
|
&& (addr_sorttab[mid - 1]->linetab != NULL) )
|
|
{
|
|
mid--;
|
|
}
|
|
}
|
|
|
|
if( (mid < sorttab_nsym - 1)
|
|
&& (addr_sorttab[mid]->linetab == NULL) )
|
|
{
|
|
if( (addr_sorttab[mid + 1]->addr.seg ==
|
|
addr_sorttab[mid]->addr.seg)
|
|
&& (addr_sorttab[mid + 1]->addr.off ==
|
|
addr_sorttab[mid]->addr.off)
|
|
&& (addr_sorttab[mid + 1]->linetab != NULL) )
|
|
{
|
|
mid++;
|
|
}
|
|
}
|
|
nearest = addr_sorttab[mid];
|
|
#if 0
|
|
fprintf(stderr, "Found %x:%x when looking for %x:%x %x %s\n",
|
|
addr_sorttab[mid ]->addr.seg,
|
|
addr_sorttab[mid ]->addr.off,
|
|
addr->seg, addr->off,
|
|
addr_sorttab[mid ]->linetab,
|
|
addr_sorttab[mid ]->name);
|
|
#endif
|
|
break;
|
|
}
|
|
if( (addr_sorttab[mid]->addr.seg < addr->seg)
|
|
|| ( addr_sorttab[mid]->addr.seg == addr->seg
|
|
&& addr_sorttab[mid]->addr.off <= addr->off) )
|
|
{
|
|
low = mid;
|
|
}
|
|
else
|
|
{
|
|
high = mid;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!nearest) return FUNC_HAS_NO_LINES;
|
|
|
|
if( nearest->flags & SYM_STEP_THROUGH )
|
|
{
|
|
/*
|
|
* This will cause us to keep single stepping until
|
|
* we get to the other side somewhere.
|
|
*/
|
|
return NOT_ON_LINENUMBER;
|
|
}
|
|
|
|
if( (nearest->flags & SYM_TRAMPOLINE) )
|
|
{
|
|
/*
|
|
* This will cause us to keep single stepping until
|
|
* we get to the other side somewhere.
|
|
*/
|
|
return FUNC_IS_TRAMPOLINE;
|
|
}
|
|
|
|
if( nearest->linetab == NULL )
|
|
{
|
|
return FUNC_HAS_NO_LINES;
|
|
}
|
|
|
|
|
|
/*
|
|
* We never want to stop on the first instruction of a function
|
|
* even if it has it's own linenumber. Let the thing keep running
|
|
* until it gets past the function prologue. We only do this if there
|
|
* is more than one line number for the function, of course.
|
|
*/
|
|
if( nearest->addr.off == addr->off && nearest->n_lines > 1 )
|
|
{
|
|
return NOT_ON_LINENUMBER;
|
|
}
|
|
|
|
if( (nearest->sourcefile != NULL)
|
|
&& (addr->off - nearest->addr.off < 0x100000) )
|
|
{
|
|
/*
|
|
* FIXME - this is an inefficient linear search. A binary
|
|
* search would be better if this gets to be a performance
|
|
* bottleneck.
|
|
*/
|
|
for(i=0; i < nearest->n_lines; i++)
|
|
{
|
|
if( addr->off == nearest->linetab[i].pc_offset.off )
|
|
{
|
|
return AT_LINENUMBER;
|
|
}
|
|
if( addr->off < nearest->linetab[i].pc_offset.off )
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
return NOT_ON_LINENUMBER;
|
|
}
|
|
|
|
return FUNC_HAS_NO_LINES;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DEBUG_GetFuncInfo
|
|
*
|
|
* Find the symbol nearest to a given address.
|
|
* Returns sourcefile name and line number in a format that the listing
|
|
* handler can deal with.
|
|
*/
|
|
void
|
|
DEBUG_GetFuncInfo( struct list_id * ret, const char * filename,
|
|
const char * name)
|
|
{
|
|
char buffer[256];
|
|
char * pnt;
|
|
struct name_hash *nh;
|
|
|
|
for(nh = name_hash_table[name_hash(name)]; nh; nh = nh->next)
|
|
{
|
|
if( filename != NULL )
|
|
{
|
|
|
|
if( nh->sourcefile == NULL )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
pnt = strrchr(nh->sourcefile, '/');
|
|
if( strcmp(nh->sourcefile, filename) != 0
|
|
&& (pnt == NULL || strcmp(pnt + 1, filename) != 0) )
|
|
{
|
|
continue;
|
|
}
|
|
}
|
|
if (!strcmp(nh->name, name)) break;
|
|
}
|
|
|
|
if (!nh && (name[0] != '_'))
|
|
{
|
|
buffer[0] = '_';
|
|
strcpy(buffer+1, name);
|
|
for(nh = name_hash_table[name_hash(buffer)]; nh; nh = nh->next)
|
|
{
|
|
if( filename != NULL )
|
|
{
|
|
if( nh->sourcefile == NULL )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
pnt = strrchr(nh->sourcefile, '/');
|
|
if( strcmp(nh->sourcefile, filename) != 0
|
|
&& (pnt == NULL || strcmp(pnt + 1, filename) != 0) )
|
|
{
|
|
continue;
|
|
}
|
|
}
|
|
if (!strcmp(nh->name, buffer)) break;
|
|
}
|
|
}
|
|
|
|
if( !nh )
|
|
{
|
|
if( filename != NULL )
|
|
{
|
|
fprintf(stderr, "No such function %s in %s\n", name, filename);
|
|
}
|
|
else
|
|
{
|
|
fprintf(stderr, "No such function %s\n", name);
|
|
}
|
|
ret->sourcefile = NULL;
|
|
ret->line = -1;
|
|
return;
|
|
}
|
|
|
|
ret->sourcefile = nh->sourcefile;
|
|
|
|
/*
|
|
* Search for the specific line number. If we don't find it,
|
|
* then return FALSE.
|
|
*/
|
|
if( nh->linetab == NULL )
|
|
{
|
|
ret->line = -1;
|
|
}
|
|
else
|
|
{
|
|
ret->line = nh->linetab[0].line_number;
|
|
}
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DEBUG_GetStackSymbolValue
|
|
*
|
|
* Get the address of a named symbol from the current stack frame.
|
|
*/
|
|
static
|
|
BOOL32 DEBUG_GetStackSymbolValue( const char * name, DBG_ADDR *addr )
|
|
{
|
|
struct name_hash * curr_func;
|
|
unsigned int ebp;
|
|
unsigned int eip;
|
|
int i;
|
|
|
|
if( DEBUG_GetCurrentFrame(&curr_func, &eip, &ebp) == FALSE )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
for(i=0; i < curr_func->n_locals; i++ )
|
|
{
|
|
/*
|
|
* Test the range of validity of the local variable. This
|
|
* comes up with RBRAC/LBRAC stabs in particular.
|
|
*/
|
|
if( (curr_func->local_vars[i].pc_start != 0)
|
|
&& ((eip - curr_func->addr.off)
|
|
< curr_func->local_vars[i].pc_start) )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if( (curr_func->local_vars[i].pc_end != 0)
|
|
&& ((eip - curr_func->addr.off)
|
|
> curr_func->local_vars[i].pc_end) )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if( strcmp(name, curr_func->local_vars[i].name) == 0 )
|
|
{
|
|
/*
|
|
* OK, we found it. Now figure out what to do with this.
|
|
*/
|
|
if( curr_func->local_vars[i].regno != 0 )
|
|
{
|
|
/*
|
|
* Register variable. We don't know how to treat
|
|
* this yet.
|
|
*/
|
|
return FALSE;
|
|
}
|
|
|
|
addr->seg = 0;
|
|
addr->off = ebp + curr_func->local_vars[i].offset;
|
|
addr->type = curr_func->local_vars[i].type;
|
|
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
DEBUG_InfoLocals()
|
|
{
|
|
struct name_hash * curr_func;
|
|
unsigned int ebp;
|
|
unsigned int eip;
|
|
int i;
|
|
unsigned int * ptr;
|
|
int rtn = FALSE;
|
|
|
|
if( DEBUG_GetCurrentFrame(&curr_func, &eip, &ebp) == FALSE )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
for(i=0; i < curr_func->n_locals; i++ )
|
|
{
|
|
/*
|
|
* Test the range of validity of the local variable. This
|
|
* comes up with RBRAC/LBRAC stabs in particular.
|
|
*/
|
|
if( (curr_func->local_vars[i].pc_start != 0)
|
|
&& ((eip - curr_func->addr.off)
|
|
< curr_func->local_vars[i].pc_start) )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if( (curr_func->local_vars[i].pc_end != 0)
|
|
&& ((eip - curr_func->addr.off)
|
|
> curr_func->local_vars[i].pc_end) )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if( curr_func->local_vars[i].offset == 0 )
|
|
{
|
|
fprintf(stderr, "%s:%s optimized into register $%s \n",
|
|
curr_func->name, curr_func->local_vars[i].name,
|
|
reg_name[curr_func->local_vars[i].regno]);
|
|
}
|
|
else
|
|
{
|
|
ptr = (unsigned int *) (ebp + curr_func->local_vars[i].offset);
|
|
fprintf(stderr, "%s:%s == 0x%8.8x\n",
|
|
curr_func->name, curr_func->local_vars[i].name,
|
|
*ptr);
|
|
}
|
|
}
|
|
|
|
rtn = TRUE;
|
|
|
|
return (rtn);
|
|
}
|
|
|
|
int
|
|
DEBUG_SetSymbolSize(struct name_hash * sym, unsigned int len)
|
|
{
|
|
sym->symbol_size = len;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
DEBUG_SetSymbolBPOff(struct name_hash * sym, unsigned int off)
|
|
{
|
|
sym->breakpoint_offset = off;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int
|
|
DEBUG_GetSymbolAddr(struct name_hash * sym, DBG_ADDR * addr)
|
|
{
|
|
|
|
*addr = sym->addr;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
int DEBUG_SetLocalSymbolType(struct wine_locals * sym, struct datatype * type)
|
|
{
|
|
sym->type = type;
|
|
|
|
return TRUE;
|
|
}
|