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* blockframe.c (inside_main_func): No longer use symbol_lookup()

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to lookup the main function symbol.
This commit is contained in:
Joel Brobecker 2003-10-10 20:49:40 +00:00
parent afce3d2aa2
commit 8d4ce20aa3
2 changed files with 22 additions and 6 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2003-10-10 J. Brobecker <brobecker@gnat.com>
* blockframe.c (inside_main_func): No longer use symbol_lookup()
to lookup the main function symbol.
2003-10-10 Corinna Vinschen <vinschen@redhat.com>
* sh-tdep.c (sh_treat_as_flt_p): New function to recognize float

23
gdb/blockframe.c
View file

@ -83,22 +83,35 @@ deprecated_inside_entry_file (CORE_ADDR addr)
int
inside_main_func (CORE_ADDR pc)
{
struct minimal_symbol *msymbol;
if (pc == 0)
return 1;
if (symfile_objfile == 0)
return 0;
msymbol = lookup_minimal_symbol (main_name (), NULL, symfile_objfile);
/* If the addr range is not set up at symbol reading time, set it up
now. This is for DEPRECATED_FRAME_CHAIN_VALID_ALTERNATE. I do
this for coff, because it is unable to set it up and symbol
reading time. */
if (symfile_objfile->ei.main_func_lowpc == INVALID_ENTRY_LOWPC &&
symfile_objfile->ei.main_func_highpc == INVALID_ENTRY_HIGHPC)
if (msymbol != NULL
&& symfile_objfile->ei.main_func_lowpc == INVALID_ENTRY_LOWPC
&& symfile_objfile->ei.main_func_highpc == INVALID_ENTRY_HIGHPC)
{
struct symbol *mainsym;
/* brobecker/2003-10-10: We used to rely on lookup_symbol() to search
the symbol associated to the main function. Unfortunately,
lookup_symbol() uses the current-language la_lookup_symbol_nonlocal
function to do the global symbol search. Depending on the language,
this can introduce certain side-effects, because certain languages
such as Ada for instance may find more than one match. So we prefer
to search the main function symbol using its address rather than
its name. */
struct symbol *mainsym
= find_pc_function (SYMBOL_VALUE_ADDRESS (msymbol));
mainsym = lookup_symbol (main_name (), NULL, VAR_DOMAIN, NULL, NULL);
if (mainsym && SYMBOL_CLASS (mainsym) == LOC_BLOCK)
{
symfile_objfile->ei.main_func_lowpc =
@ -111,8 +124,6 @@ inside_main_func (CORE_ADDR pc)
/* Not in the normal symbol tables, see if "main" is in the partial
symbol table. If it's not, then give up. */
{
struct minimal_symbol *msymbol
= lookup_minimal_symbol (main_name (), NULL, symfile_objfile);
if (msymbol != NULL && MSYMBOL_TYPE (msymbol) == mst_text)
{
struct obj_section *osect