64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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#include <pc/arch.h>
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sym_t symtab[SYMTAB_LEN] = { 0 };
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int create_symtab(const char *name)
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{
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FILE *tab = fopen(name, "r");
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ulong addr, prev_addr = 0;
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char buf[SYMLEN_MAX] = { 0 };
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size_t it = 0;
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if (!tab)
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{
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logerr("Couldn't open symtab\n");
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return -1;
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}
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while (fscanf(tab, "%45s%*s %lu\n", buf, &addr) > 0 && it < SYMTAB_LEN)
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{
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//trace("SYM: '%.*s' '%lu'\n", SYMLEN_MAX, buf, addr);
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if (prev_addr > addr)
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{
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logerr("Symbol addresses in symbol table not in increasing order\n");
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logerr("Previous symbol: '%s' '%lu'\n", symtab[it-1].name, prev_addr);
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logerr("Current symbol: '%s' '%lu'\n", buf, addr);
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exit(-1);
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}
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prev_addr = addr;
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symtab[it].addr = addr;
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strcpy(symtab[it].name, buf);
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it++;
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}
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fclose(tab);
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return 0;
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}
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sym_t *find_sym_by_addr(ulong addr)
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{
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ulong it;
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sym_t *sym;
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for (it = 0; it < SYMTAB_LEN; it++)
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{
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sym = &symtab[it];
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if (sym->addr == addr)
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return sym;
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// Addresses in symtab are in increasing order
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if (sym->addr == 0 || sym->addr > addr)
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return NULL;
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}
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return NULL;
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}
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