/* List lines of source files for GDB, the GNU debugger.
- Copyright (C) 1986-2013 Free Software Foundation, Inc.
+ Copyright (C) 1986-2015 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbcmd.h"
#include "frame.h"
#include "value.h"
-#include "gdb_assert.h"
#include "filestuff.h"
#include <sys/types.h>
-#include <string.h>
#include <sys/stat.h>
#include <fcntl.h>
#include "gdbcore.h"
static int last_line_listed;
-/* First line number listed by last listing command. */
+/* First line number listed by last listing command. If 0, then no
+ source lines have yet been listed since the last time the current
+ source line was changed. */
static int first_line_listed;
return first_line_listed;
}
+/* Clear line listed range. This makes the next "list" center the
+ printed source lines around the current source line. */
+
+static void
+clear_lines_listed_range (void)
+{
+ first_line_listed = 0;
+ last_line_listed = 0;
+}
+
/* Return the default number of lines to print with commands like the
cli "list". The caller of print_source_lines must use this to
calculate the end line and use it in the call to print_source_lines
current_source_symtab = sal->symtab;
current_source_line = sal->line;
+ /* Force the next "list" to center around the current line. */
+ clear_lines_listed_range ();
+
return cursal;
}
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct objfile *ofp;
+ struct compunit_symtab *cu;
if (s)
{
/* Make the default place to list be the function `main'
if one exists. */
- if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0))
+ if (lookup_symbol (main_name (), 0, VAR_DOMAIN, 0).symbol)
{
sals = decode_line_with_current_source (main_name (),
DECODE_LINE_FUNFIRSTLINE);
current_source_line = 1;
- ALL_OBJFILES (ofp)
+ ALL_FILETABS (ofp, cu, s)
{
- for (s = ofp->symtabs; s; s = s->next)
- {
- const char *name = s->filename;
- int len = strlen (name);
+ const char *name = s->filename;
+ int len = strlen (name);
- if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0
- || strcmp (name, "<<C++-namespaces>>") == 0)))
- {
- current_source_pspace = current_program_space;
- current_source_symtab = s;
- }
+ if (!(len > 2 && (strcmp (&name[len - 2], ".h") == 0
+ || strcmp (name, "<<C++-namespaces>>") == 0)))
+ {
+ current_source_pspace = current_program_space;
+ current_source_symtab = s;
}
}
void
forget_cached_source_info_for_objfile (struct objfile *objfile)
{
+ struct compunit_symtab *cu;
struct symtab *s;
- ALL_OBJFILE_SYMTABS (objfile, s)
+ ALL_OBJFILE_FILETABS (objfile, cu, s)
{
if (s->line_charpos != NULL)
{
char tinybuf[2];
p = *which_path;
- /* FIXME: we should use realpath() or its work-alike
- before comparing. Then all the code above which
- removes excess slashes and dots could simply go away. */
- if (!filename_cmp (p, name))
+ while (1)
{
- /* Found it in the search path, remove old copy. */
- if (p > *which_path)
- p--; /* Back over leading separator. */
- if (prefix > p - *which_path)
- goto skip_dup; /* Same dir twice in one cmd. */
- memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1); /* Copy from next \0 or : */
+ /* FIXME: we should use realpath() or its work-alike
+ before comparing. Then all the code above which
+ removes excess slashes and dots could simply go away. */
+ if (!filename_ncmp (p, name, len)
+ && (p[len] == '\0' || p[len] == DIRNAME_SEPARATOR))
+ {
+ /* Found it in the search path, remove old copy. */
+ if (p > *which_path)
+ {
+ /* Back over leading separator. */
+ p--;
+ }
+ if (prefix > p - *which_path)
+ {
+ /* Same dir twice in one cmd. */
+ goto skip_dup;
+ }
+ /* Copy from next '\0' or ':'. */
+ memmove (p, &p[len + 1], strlen (&p[len + 1]) + 1);
+ }
+ p = strchr (p, DIRNAME_SEPARATOR);
+ if (p != 0)
+ ++p;
+ else
+ break;
}
tinybuf[0] = DIRNAME_SEPARATOR;
source_info (char *ignore, int from_tty)
{
struct symtab *s = current_source_symtab;
+ struct compunit_symtab *cust;
if (!s)
{
printf_filtered (_("No current source file.\n"));
return;
}
+
+ cust = SYMTAB_COMPUNIT (s);
printf_filtered (_("Current source file is %s\n"), s->filename);
- if (s->dirname)
- printf_filtered (_("Compilation directory is %s\n"), s->dirname);
+ if (SYMTAB_DIRNAME (s) != NULL)
+ printf_filtered (_("Compilation directory is %s\n"), SYMTAB_DIRNAME (s));
if (s->fullname)
printf_filtered (_("Located in %s\n"), s->fullname);
if (s->nlines)
s->nlines == 1 ? "" : "s");
printf_filtered (_("Source language is %s.\n"), language_str (s->language));
- printf_filtered (_("Compiled with %s debugging format.\n"), s->debugformat);
+ printf_filtered (_("Producer is %s.\n"),
+ COMPUNIT_PRODUCER (cust) != NULL
+ ? COMPUNIT_PRODUCER (cust) : _("unknown"));
+ printf_filtered (_("Compiled with %s debugging format.\n"),
+ COMPUNIT_DEBUGFORMAT (cust));
printf_filtered (_("%s preprocessor macro info.\n"),
- s->macro_table ? "Includes" : "Does not include");
+ COMPUNIT_MACRO_TABLE (cust) != NULL
+ ? "Includes" : "Does not include");
}
\f
struct cleanup *back_to;
int ix;
char *dir;
+ /* The errno set for the last name we tried to open (and
+ failed). */
+ int last_errno = 0;
/* The open syscall MODE parameter is not specified. */
gdb_assert ((mode & O_CREAT) == 0);
if (is_regular_file (string))
{
- filename = alloca (strlen (string) + 1);
+ filename = (char *) alloca (strlen (string) + 1);
strcpy (filename, string);
fd = gdb_open_cloexec (filename, mode, 0);
if (fd >= 0)
filename = NULL;
fd = -1;
}
+ last_errno = errno;
if (!(opts & OPF_SEARCH_IN_PATH))
for (i = 0; string[i]; i++)
string += 2;
alloclen = strlen (path) + strlen (string) + 2;
- filename = alloca (alloclen);
+ filename = (char *) alloca (alloclen);
fd = -1;
+ last_errno = ENOENT;
dir_vec = dirnames_to_char_ptr_vec (path);
back_to = make_cleanup_free_char_ptr_vec (dir_vec);
if (newlen > alloclen)
{
alloclen = newlen;
- filename = alloca (alloclen);
+ filename = (char *) alloca (alloclen);
}
strcpy (filename, current_directory);
}
if (newlen > alloclen)
{
alloclen = newlen;
- filename = alloca (alloclen);
+ filename = (char *) alloca (alloclen);
}
strcpy (filename, tilde_expanded);
xfree (tilde_expanded);
fd = gdb_open_cloexec (filename, mode, 0);
if (fd >= 0)
break;
+ last_errno = errno;
}
}
/* If a file was opened, canonicalize its filename. */
if (fd < 0)
*filename_opened = NULL;
+ else if ((opts & OPF_RETURN_REALPATH) != 0)
+ *filename_opened = gdb_realpath (filename);
else
- {
- char *(*realpath_fptr) (const char *);
-
- realpath_fptr = ((opts & OPF_RETURN_REALPATH) != 0
- ? gdb_realpath : xstrdup);
-
- if (IS_ABSOLUTE_PATH (filename))
- *filename_opened = realpath_fptr (filename);
- else
- {
- /* Beware the // my son, the Emacs barfs, the botch that catch... */
-
- char *f = concat (current_directory,
- IS_DIR_SEPARATOR (current_directory[strlen (current_directory) - 1])
- ? "" : SLASH_STRING,
- filename, (char *)NULL);
-
- *filename_opened = realpath_fptr (f);
- xfree (f);
- }
- }
+ *filename_opened = gdb_abspath (filename);
}
+ errno = last_errno;
return fd;
}
{
const int from_len = strlen (rule->from);
const int path_len = strlen (path);
- char *path_start;
if (path_len < from_len)
return 0;
/* The substitution rules are anchored at the start of the path,
- so the path should start with rule->from. There is no filename
- comparison routine, so we need to extract the first FROM_LEN
- characters from PATH first and use that to do the comparison. */
-
- path_start = alloca (from_len + 1);
- strncpy (path_start, path, from_len);
- path_start[from_len] = '\0';
+ so the path should start with rule->from. */
- if (FILENAME_CMP (path_start, rule->from) != 0)
+ if (filename_ncmp (path, rule->from, from_len) != 0)
return 0;
/* Make sure that the region in the path that matches the substitution
rule is immediately followed by a directory separator (or the end of
string character). */
-
+
if (path[from_len] != '\0' && !IS_DIR_SEPARATOR (path[from_len]))
return 0;
if (!s)
return -1;
- return find_and_open_source (s->filename, s->dirname, &s->fullname);
+ return find_and_open_source (s->filename, SYMTAB_DIRNAME (s), &s->fullname);
}
/* Finds the fullname that a symtab represents.
to handle cases like the file being moved. */
if (s->fullname == NULL)
{
- int fd = find_and_open_source (s->filename, s->dirname, &s->fullname);
+ int fd = find_and_open_source (s->filename, SYMTAB_DIRNAME (s),
+ &s->fullname);
if (fd >= 0)
close (fd);
/* rewrite_source_path would be applied by find_and_open_source, we
should report the pathname where GDB tried to find the file. */
- if (s->dirname == NULL || IS_ABSOLUTE_PATH (s->filename))
+ if (SYMTAB_DIRNAME (s) == NULL || IS_ABSOLUTE_PATH (s->filename))
fullname = xstrdup (s->filename);
else
- fullname = concat (s->dirname, SLASH_STRING, s->filename, NULL);
+ fullname = concat (SYMTAB_DIRNAME (s), SLASH_STRING, s->filename,
+ NULL);
back_to = make_cleanup (xfree, fullname);
s->fullname = rewrite_source_path (fullname);
int size;
gdb_assert (s);
- line_charpos = (int *) xmalloc (lines_allocated * sizeof (int));
+ line_charpos = XNEWVEC (int, lines_allocated);
if (fstat (desc, &st) < 0)
perror_with_name (symtab_to_filename_for_display (s));
- if (s->objfile && s->objfile->obfd)
- mtime = s->objfile->mtime;
+ if (SYMTAB_OBJFILE (s) != NULL && SYMTAB_OBJFILE (s)->obfd != NULL)
+ mtime = SYMTAB_OBJFILE (s)->mtime;
else if (exec_bfd)
mtime = exec_bfd_mtime;
/* Don't index off the end of the line_charpos array. */
return 0;
annotate_source (s->fullname, line, s->line_charpos[line - 1],
- mid_statement, get_objfile_arch (s->objfile), pc);
+ mid_statement, get_objfile_arch (SYMTAB_OBJFILE (s)), pc);
current_source_line = line;
- first_line_listed = line;
- last_line_listed = line;
current_source_symtab = s;
+ clear_lines_listed_range ();
return 1;
}
\f
{
const char *filename = symtab_to_filename_for_display (s);
int len = strlen (filename) + 100;
- char *name = alloca (len);
+ char *name = (char *) alloca (len);
xsnprintf (name, len, "%d\t%s", line, filename);
print_sys_errmsg (name, errno);
/* ui_out_field_string may free S_FULLNAME by calling
open_source_file for it again. See e.g.,
tui_field_string->tui_show_source. */
- local_fullname = alloca (strlen (s_fullname) + 1);
+ local_fullname = (char *) alloca (strlen (s_fullname) + 1);
strcpy (local_fullname, s_fullname);
ui_out_field_string (uiout, "fullname", local_fullname);
{
sal.symtab = current_source_symtab;
sal.pspace = current_program_space;
- sal.line = last_line_listed;
+ if (last_line_listed != 0)
+ sal.line = last_line_listed;
+ else
+ sal.line = current_source_line;
+
sals.nelts = 1;
- sals.sals = (struct symtab_and_line *)
- xmalloc (sizeof (struct symtab_and_line));
+ sals.sals = XNEW (struct symtab_and_line);
sals.sals[0] = sal;
}
else
else if (sal.line > 0
&& find_line_pc_range (sal, &start_pc, &end_pc))
{
- struct gdbarch *gdbarch = get_objfile_arch (sal.symtab->objfile);
+ struct gdbarch *gdbarch
+ = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab));
if (start_pc == end_pc)
{
int cursize, newsize;
cursize = 256;
- buf = xmalloc (cursize);
+ buf = (char *) xmalloc (cursize);
p = buf;
c = fgetc (stream);
if (p - buf == cursize)
{
newsize = cursize + cursize / 2;
- buf = xrealloc (buf, newsize);
+ buf = (char *) xrealloc (buf, newsize);
p = buf + cursize;
cursize = newsize;
}
add_substitute_path_rule (char *from, char *to)
{
struct substitute_path_rule *rule;
- struct substitute_path_rule *new_rule;
+ struct substitute_path_rule *new_rule = XNEW (struct substitute_path_rule);
- new_rule = xmalloc (sizeof (struct substitute_path_rule));
new_rule->from = xstrdup (from);
new_rule->to = xstrdup (to);
new_rule->next = NULL;
while (rule != NULL)
{
- if (from == NULL || FILENAME_CMP (rule->from, from) == 0)
+ if (from == NULL || substitute_path_rule_matches (rule, from) != 0)
printf_filtered (" `%s' -> `%s'.\n", rule->from, rule->to);
rule = rule->next;
}
show_directories_command,
&setlist, &showlist);
- if (xdb_commands)
- {
- add_com_alias ("D", "directory", class_files, 0);
- add_cmd ("ld", no_class, show_directories_1, _("\
-Current search path for finding source files.\n\
-$cwd in the path means the current working directory.\n\
-$cdir in the path means the compilation directory of the source file."),
- &cmdlist);
- }
-
add_info ("source", source_info,
_("Information about the current source file."));
The matching line number is also stored as the value of \"$_\"."));
add_com_alias ("rev", "reverse-search", class_files, 1);
- if (xdb_commands)
- {
- add_com_alias ("/", "forward-search", class_files, 0);
- add_com_alias ("?", "reverse-search", class_files, 0);
- }
-
add_setshow_integer_cmd ("listsize", class_support, &lines_to_list, _("\
Set number of source lines gdb will list by default."), _("\
Show number of source lines gdb will list by default."), _("\