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ldconfig: trace origin paths with -v

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With this patch, -v turns on a "from" trace for each directory
searched, that tells you WHY that directory is being searched -
is it a builtin, from the command line, or from some config file?
This commit is contained in:
DJ Delorie 2020-02-19 12:31:38 -05:00
parent 083d644d42
commit b7176cc2af
1 changed files with 24 additions and 6 deletions
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30
elf/ldconfig.c
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@ -79,6 +79,8 @@ struct dir_entry
int flag;
ino64_t ino;
dev_t dev;
const char *from_file;
int from_line;
struct dir_entry *next;
};
@ -344,7 +346,12 @@ add_single_dir (struct dir_entry *entry, int verbose)
if (ptr->ino == entry->ino && ptr->dev == entry->dev)
{
if (opt_verbose && verbose)
error (0, 0, _("Path `%s' given more than once"), entry->path);
{
error (0, 0, _("Path `%s' given more than once"), entry->path);
fprintf (stderr, _("(from %s:%d and %s:%d)\n"),
entry->from_file, entry->from_line,
ptr->from_file, ptr->from_line);
}
/* Use the newer information. */
ptr->flag = entry->flag;
free (entry->path);
@ -363,12 +370,15 @@ add_single_dir (struct dir_entry *entry, int verbose)
/* Add one directory to the list of directories to process. */
static void
add_dir (const char *line)
add_dir_1 (const char *line, const char *from_file, int from_line)
{
unsigned int i;
struct dir_entry *entry = xmalloc (sizeof (struct dir_entry));
entry->next = NULL;
entry->from_file = strdup (from_file);
entry->from_line = from_line;
/* Search for an '=' sign. */
entry->path = xstrdup (line);
char *equal_sign = strchr (entry->path, '=');
@ -428,6 +438,11 @@ add_dir (const char *line)
free (path);
}
static void
add_dir (const char *line)
{
add_dir_1 (line, "<builtin>", 0);
}
static int
chroot_stat (const char *real_path, const char *path, struct stat64 *st)
@ -672,9 +687,10 @@ search_dir (const struct dir_entry *entry)
if (opt_verbose)
{
if (hwcap != 0)
printf ("%s: (hwcap: %#.16" PRIx64 ")\n", entry->path, hwcap);
printf ("%s: (hwcap: %#.16" PRIx64 ")", entry->path, hwcap);
else
printf ("%s:\n", entry->path);
printf ("%s:", entry->path);
printf (_(" (from %s:%d)\n"), entry->from_file, entry->from_line);
}
char *dir_name;
@ -815,6 +831,8 @@ search_dir (const struct dir_entry *entry)
struct dir_entry *new_entry;
new_entry = xmalloc (sizeof (struct dir_entry));
new_entry->from_file = entry->from_file;
new_entry->from_line = entry->from_line;
new_entry->path = xstrdup (file_name);
new_entry->flag = entry->flag;
new_entry->next = NULL;
@ -1175,7 +1193,7 @@ Warning: ignoring configuration file that cannot be opened: %s"),
}
}
else
add_dir (cp);
add_dir_1 (cp, filename, lineno);
}
while (!feof_unlocked (file));
@ -1283,7 +1301,7 @@ main (int argc, char **argv)
_("relative path `%s' used to build cache"),
argv[i]);
else
add_dir (argv[i]);
add_dir_1 (argv[i], "<cmdline>", 0);
}
/* The last entry in hwcap_extra is reserved for the "tls" pseudo-hwcap which