/* This is the symbol-file command. Read the file, analyze its
symbols, and add a struct symtab to a symtab list. The syntax of
- the command is rather bizarre--(1) buildargv implements various
- quoting conventions which are undocumented and have little or
- nothing in common with the way things are quoted (or not quoted)
- elsewhere in GDB, (2) options are used, which are not generally
- used in GDB (perhaps "set mapped on", "set readnow on" would be
- better), (3) the order of options matters, which is contrary to GNU
+ the command is rather bizarre:
+
+ 1. The function buildargv implements various quoting conventions
+ which are undocumented and have little or nothing in common with
+ the way things are quoted (or not quoted) elsewhere in GDB.
+
+ 2. Options are used, which are not generally used in GDB (perhaps
+ "set mapped on", "set readnow on" would be better)
+
+ 3. The order of options matters, which is contrary to GNU
conventions (because it is confusing and inconvenient). */
void
symbol_file_command (char *args, int from_tty)
{
- char **argv;
- char *name = NULL;
- struct cleanup *cleanups;
- int flags = OBJF_USERLOADED;
-
dont_repeat ();
if (args == NULL)
}
else
{
- if ((argv = buildargv (args)) == NULL)
- {
- nomem (0);
- }
+ char **argv = buildargv (args);
+ int flags = OBJF_USERLOADED;
+ struct cleanup *cleanups;
+ char *name = NULL;
+
+ if (argv == NULL)
+ nomem (0);
+
cleanups = make_cleanup_freeargv (argv);
while (*argv != NULL)
{
error (_("unknown option `%s'"), *argv);
else
{
+ symbol_file_add_main_1 (*argv, from_tty, flags);
name = *argv;
-
- symbol_file_add_main_1 (name, from_tty, flags);
}
+
argv++;
}
if (name == NULL)
- {
- error (_("no symbol file name was specified"));
- }
+ error (_("no symbol file name was specified"));
+
do_cleanups (cleanups);
}
}
/* Set the initial language.
- A better solution would be to record the language in the psymtab when reading
- partial symbols, and then use it (if known) to set the language. This would
- be a win for formats that encode the language in an easily discoverable place,
- such as DWARF. For stabs, we can jump through hoops looking for specially
- named symbols or try to intuit the language from the specific type of stabs
- we find, but we can't do that until later when we read in full symbols.
- FIXME. */
+ FIXME: A better solution would be to record the language in the
+ psymtab when reading partial symbols, and then use it (if known) to
+ set the language. This would be a win for formats that encode the
+ language in an easily discoverable place, such as DWARF. For
+ stabs, we can jump through hoops looking for specially named
+ symbols or try to intuit the language from the specific type of
+ stabs we find, but we can't do that until later when we read in
+ full symbols. */
static void
set_initial_language (void)
if (pst != NULL)
{
if (pst->filename != NULL)
- {
- lang = deduce_language_from_filename (pst->filename);
- }
+ lang = deduce_language_from_filename (pst->filename);
+
if (lang == language_unknown)
{
/* Make C the default language */
lang = language_c;
}
+
set_language (lang);
- expected_language = current_language; /* Don't warn the user */
+ expected_language = current_language; /* Don't warn the user. */
}
}
-/* Open file specified by NAME and hand it off to BFD for preliminary
- analysis. Result is a newly initialized bfd *, which includes a newly
- malloc'd` copy of NAME (tilde-expanded and made absolute).
- In case of trouble, error() is called. */
+/* Open the file specified by NAME and hand it off to BFD for
+ preliminary analysis. Return a newly initialized bfd *, which
+ includes a newly malloc'd` copy of NAME (tilde-expanded and made
+ absolute). In case of trouble, error() is called. */
bfd *
symfile_bfd_open (char *name)
int desc;
char *absolute_name;
-
-
- name = tilde_expand (name); /* Returns 1st new malloc'd copy */
+ name = tilde_expand (name); /* Returns 1st new malloc'd copy. */
/* Look down path for it, allocate 2nd new malloc'd copy. */
- desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, name, O_RDONLY | O_BINARY,
- 0, &absolute_name);
+ desc = openp (getenv ("PATH"), OPF_TRY_CWD_FIRST, name,
+ O_RDONLY | O_BINARY, 0, &absolute_name);
#if defined(__GO32__) || defined(_WIN32) || defined (__CYGWIN__)
if (desc < 0)
{
make_cleanup (xfree, name);
perror_with_name (name);
}
- xfree (name); /* Free 1st new malloc'd copy */
- name = absolute_name; /* Keep 2nd malloc'd copy in bfd */
- /* It'll be freed in free_objfile(). */
+
+ /* Free 1st new malloc'd copy, but keep the 2nd malloc'd copy in
+ bfd. It'll be freed in free_objfile(). */
+ xfree (name);
+ name = absolute_name;
sym_bfd = bfd_fopen (name, gnutarget, FOPEN_RB, desc);
if (!sym_bfd)
if (!bfd_check_format (sym_bfd, bfd_object))
{
- /* FIXME: should be checking for errors from bfd_close (for one thing,
- on error it does not free all the storage associated with the
- bfd). */
- bfd_close (sym_bfd); /* This also closes desc */
+ /* FIXME: should be checking for errors from bfd_close (for one
+ thing, on error it does not free all the storage associated
+ with the bfd). */
+ bfd_close (sym_bfd); /* This also closes desc. */
make_cleanup (xfree, name);
error (_("\"%s\": can't read symbols: %s."), name,
bfd_errmsg (bfd_get_error ()));
}
- return (sym_bfd);
+
+ return sym_bfd;
}
-/* Return the section index for the given section name. Return -1 if
- the section was not found. */
+/* Return the section index for SECTION_NAME on OBJFILE. Return -1 if
+ the section was not found. */
+
int
get_section_index (struct objfile *objfile, char *section_name)
{
asection *sect = bfd_get_section_by_name (objfile->obfd, section_name);
+
if (sect)
return sect->index;
else
return -1;
}
-/* Link a new symtab_fns into the global symtab_fns list. Called on gdb
- startup by the _initialize routine in each object file format reader,
- to register information about each format the the reader is prepared
- to handle. */
+/* Link SF into the global symtab_fns list. Called on startup by the
+ _initialize routine in each object file format reader, to register
+ information about each format the the reader is prepared to
+ handle. */
void
add_symtab_fns (struct sym_fns *sf)
symtab_fns = sf;
}
-
-/* Initialize to read symbols from the symbol file sym_bfd. It either
- returns or calls error(). The result is an initialized struct sym_fns
- in the objfile structure, that contains cached information about the
- symbol file. */
+/* Initialize OBJFILE to read symbols from its associated BFD. It
+ either returns or calls error(). The result is an initialized
+ struct sym_fns in the objfile structure, that contains cached
+ information about the symbol file. */
static void
find_sym_fns (struct objfile *objfile)
if (our_flavour == bfd_target_srec_flavour
|| our_flavour == bfd_target_ihex_flavour
|| our_flavour == bfd_target_tekhex_flavour)
- return; /* No symbols. */
+ return; /* No symbols. */
for (sf = symtab_fns; sf != NULL; sf = sf->next)
{
return;
}
}
+
error (_("I'm sorry, Dave, I can't do that. Symbol format `%s' unknown."),
bfd_get_target (objfile->obfd));
}
\f
+
/* This function runs the load command of our current target. */
static void
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