diff options
Diffstat (limited to 'gdb/minsyms.c')
| -rw-r--r-- | gdb/minsyms.c | 65 |
1 files changed, 33 insertions, 32 deletions
diff --git a/gdb/minsyms.c b/gdb/minsyms.c index 5d5506bff32..8f77ec16909 100644 --- a/gdb/minsyms.c +++ b/gdb/minsyms.c @@ -1,5 +1,6 @@ /* GDB routines for manipulating the minimal symbol tables. - Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 + Copyright 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, + 2002, 2003 Free Software Foundation, Inc. Contributed by Cygnus Support, using pieces from other GDB modules. @@ -135,14 +136,15 @@ add_minsym_to_demangled_hash_table (struct minimal_symbol *sym, /* Look through all the current minimal symbol tables and find the first minimal symbol that matches NAME. If OBJF is non-NULL, limit - the search to that objfile. If SFILE is non-NULL, limit the search - to that source file. Returns a pointer to the minimal symbol that + the search to that objfile. If SFILE is non-NULL, the only file-scope + symbols considered will be from that source file (global symbols are + still preferred). Returns a pointer to the minimal symbol that matches, or NULL if no match is found. Note: One instance where there may be duplicate minimal symbols with the same name is when the symbol tables for a shared library and the symbol tables for an executable contain global symbols with the same - names (the dynamic linker deals with the duplication). */ + names (the dynamic linker deals with the duplication). */ struct minimal_symbol * lookup_minimal_symbol (register const char *name, const char *sfile, @@ -248,12 +250,13 @@ lookup_minimal_symbol (register const char *name, const char *sfile, } /* Look through all the current minimal symbol tables and find the - first minimal symbol that matches NAME and of text type. - If OBJF is non-NULL, limit - the search to that objfile. If SFILE is non-NULL, limit the search - to that source file. Returns a pointer to the minimal symbol that - matches, or NULL if no match is found. - */ + first minimal symbol that matches NAME and has text type. If OBJF + is non-NULL, limit the search to that objfile. If SFILE is non-NULL, + the only file-scope symbols considered will be from that source file + (global symbols are still preferred). Returns a pointer to the minimal + symbol that matches, or NULL if no match is found. + + This function only searches the mangled (linkage) names. */ struct minimal_symbol * lookup_minimal_symbol_text (register const char *name, const char *sfile, @@ -264,6 +267,8 @@ lookup_minimal_symbol_text (register const char *name, const char *sfile, struct minimal_symbol *found_symbol = NULL; struct minimal_symbol *found_file_symbol = NULL; + unsigned int hash = msymbol_hash (name) % MINIMAL_SYMBOL_HASH_SIZE; + #ifdef SOFUN_ADDRESS_MAYBE_MISSING if (sfile != NULL) { @@ -279,10 +284,9 @@ lookup_minimal_symbol_text (register const char *name, const char *sfile, { if (objf == NULL || objf == objfile) { - for (msymbol = objfile->msymbols; - msymbol != NULL && SYMBOL_NAME (msymbol) != NULL && - found_symbol == NULL; - msymbol++) + for (msymbol = objfile->msymbol_hash[hash]; + msymbol != NULL && found_symbol == NULL; + msymbol = msymbol->hash_next) { if (SYMBOL_MATCHES_NAME (msymbol, name) && (MSYMBOL_TYPE (msymbol) == mst_text || @@ -323,12 +327,13 @@ lookup_minimal_symbol_text (register const char *name, const char *sfile, } /* Look through all the current minimal symbol tables and find the - first minimal symbol that matches NAME and of solib trampoline type. - If OBJF is non-NULL, limit - the search to that objfile. If SFILE is non-NULL, limit the search - to that source file. Returns a pointer to the minimal symbol that - matches, or NULL if no match is found. - */ + first minimal symbol that matches NAME and is a solib trampoline. If OBJF + is non-NULL, limit the search to that objfile. If SFILE is non-NULL, + the only file-scope symbols considered will be from that source file + (global symbols are still preferred). Returns a pointer to the minimal + symbol that matches, or NULL if no match is found. + + This function only searches the mangled (linkage) names. */ struct minimal_symbol * lookup_minimal_symbol_solib_trampoline (register const char *name, @@ -338,6 +343,8 @@ lookup_minimal_symbol_solib_trampoline (register const char *name, struct minimal_symbol *msymbol; struct minimal_symbol *found_symbol = NULL; + unsigned int hash = msymbol_hash (name) % MINIMAL_SYMBOL_HASH_SIZE; + #ifdef SOFUN_ADDRESS_MAYBE_MISSING if (sfile != NULL) { @@ -353,10 +360,9 @@ lookup_minimal_symbol_solib_trampoline (register const char *name, { if (objf == NULL || objf == objfile) { - for (msymbol = objfile->msymbols; - msymbol != NULL && SYMBOL_NAME (msymbol) != NULL && - found_symbol == NULL; - msymbol++) + for (msymbol = objfile->msymbol_hash[hash]; + msymbol != NULL && found_symbol == NULL; + msymbol = msymbol->hash_next) { if (SYMBOL_MATCHES_NAME (msymbol, name) && MSYMBOL_TYPE (msymbol) == mst_solib_trampoline) @@ -606,9 +612,10 @@ prim_record_minimal_symbol_and_info (const char *name, CORE_ADDR address, msym_bunch = new; } msymbol = &msym_bunch->contents[msym_bunch_index]; - SYMBOL_NAME (msymbol) = obsavestring ((char *) name, strlen (name), - &objfile->symbol_obstack); SYMBOL_INIT_LANGUAGE_SPECIFIC (msymbol, language_unknown); + SYMBOL_LANGUAGE (msymbol) = language_auto; + SYMBOL_SET_NAMES (msymbol, (char *)name, strlen (name), objfile); + SYMBOL_VALUE_ADDRESS (msymbol) = address; SYMBOL_SECTION (msymbol) = section; SYMBOL_BFD_SECTION (msymbol) = bfd_section; @@ -860,7 +867,6 @@ install_minimal_symbols (struct objfile *objfile) for (bindex = 0; bindex < msym_bunch_index; bindex++, mcount++) { msymbols[mcount] = bunch->contents[bindex]; - SYMBOL_LANGUAGE (&msymbols[mcount]) = language_auto; if (SYMBOL_NAME (&msymbols[mcount])[0] == leading_char) { SYMBOL_NAME (&msymbols[mcount])++; @@ -920,11 +926,6 @@ install_minimal_symbols (struct objfile *objfile) } } } - - /* Now walk through all the minimal symbols, selecting the newly added - ones and attempting to cache their C++ demangled names. */ - for (; mcount-- > 0; msymbols++) - SYMBOL_INIT_DEMANGLED_NAME (msymbols, &objfile->symbol_obstack); /* Now build the hash tables; we can't do this incrementally at an earlier point since we weren't finished with the obstack |