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A few small changes to make it easier to support non-a.out symbol table 

formats in DDB:
- Reverse the sense of the symbol format #ifdef... i.e. instead of
  "#ifndef DB_NO_AOUT", use "#ifdef DB_AOUT_SYMBOLS".  This is pulled
  in from <machine/db_machdep.h>.
- Change the signature of X_db_sym_init().  Instead of int * and char *,
  it now takes void *'s for the start and end of the symbol table.
- In X_db_sym_init(), check that the pointer to the beginning of
  the symbol table is aligned.
- X_db_symbol_values() now takes a "db_symtab_t *symtab" argument.
This commit is contained in:
thorpej 1997-06-26 01:11:00 +00:00
parent c95e0b0782
commit 76fbbf772d
1 changed files with 15 additions and 7 deletions
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22
sys/ddb/db_aout.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_aout.c,v 1.16 1996/10/13 04:11:40 christos Exp $ */
/* $NetBSD: db_aout.c,v 1.17 1997/06/26 01:11:00 thorpej Exp $ */
/*
* Mach Operating System
@ -37,7 +37,7 @@
#include <ddb/db_output.h>
#include <ddb/db_extern.h>
#ifndef DB_NO_AOUT
#ifdef DB_AOUT_SYMBOLS
#include <ddb/db_aout.h>
@ -63,9 +63,9 @@ int db_symtab[SYMTAB_SPACE/sizeof(int)] = { 0, 1 };
* Find the symbol table and strings; tell ddb about them.
*/
void
X_db_sym_init(symtab, esymtab, name)
int *symtab; /* pointer to start of symbol table */
char *esymtab; /* pointer to end of string table,
X_db_sym_init(vsymtab, vesymtab, name)
void *vsymtab; /* pointer to start of symbol table */
void *vesymtab; /* pointer to end of string table,
for checking - rounded up to integer
boundary */
char *name;
@ -75,6 +75,13 @@ X_db_sym_init(symtab, esymtab, name)
register char *strtab;
register int slen;
char *estrtab;
int *symtab = vsymtab;
char *esymtab = vesymtab;
if (ALIGNED_POINTER(symtab, int) == 0) {
printf("DDB: bad symtol table start address %p\n", symtab);
return;
}
#ifdef SYMTAB_SPACE
if (*symtab < sizeof(int)) {
@ -212,7 +219,8 @@ X_db_search_symbol(symtab, off, strategy, diffp)
* Return the name and value for a symbol.
*/
void
X_db_symbol_values(sym, namep, valuep)
X_db_symbol_values(symtab, sym, namep, valuep)
db_symtab_t *symtab;
db_sym_t sym;
char **namep;
db_expr_t *valuep;
@ -348,4 +356,4 @@ ddb_init()
#endif
}
#endif /* DB_NO_AOUT */
#endif /* DB_AOUT_SYMBOLS */