OpenE2K/binutils-gdb
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Make relocate_{path,gdb_directory} return std::string

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This simplifies memory management. I've also changed some global variables
to std::string accordingly (which store the result of these functions),
but not all because some are used with add_setshow_optional_filename_cmd
which requires a char*.

gdb/ChangeLog:

2019-09-11  Christian Biesinger  <cbiesinger@google.com>

	* auto-load.c (auto_load_expand_dir_vars): Update.
	* defs.h (gdb_datadir): Change to std::string.
	(python_libdir): Likewise.
	(relocate_gdb_directory): Change return type to std::string.
	* guile/guile.c (gdbscm_data_directory): Update.
	(initialize_scheme_side): Update.
	* jit.c (jit_reader_dir): Change to std::string.
	(jit_reader_load_command): Update.
	* main.c (gdb_datadir): Change to std::string.
	(python_libdir): Likewise.
	(set_gdb_data_directory): Update.
	(relocate_path): Change to return std::string.
	(relocate_gdb_directory): Change to return std::string.
	(relocate_gdbinit_path_maybe_in_datadir): Update.
	(captured_main_1): Update.
	* python/python.c (do_start_initialization): Update.
	* top.c (show_gdb_datadir): Update.
	* xml-syscall.c (xml_init_syscalls_info): Update.
	(init_syscalls_info): Update.
This commit is contained in:
Christian Biesinger 2019-09-09 12:55:39 -05:00
parent 9224a01377
commit f2aec7f6d1
9 changed files with 81 additions and 60 deletions
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22
gdb/ChangeLog
View File

@ -1,3 +1,25 @@
2019-09-11 Christian Biesinger <cbiesinger@google.com>
* auto-load.c (auto_load_expand_dir_vars): Update.
* defs.h (gdb_datadir): Change to std::string.
(python_libdir): Likewise.
(relocate_gdb_directory): Change return type to std::string.
* guile/guile.c (gdbscm_data_directory): Update.
(initialize_scheme_side): Update.
* jit.c (jit_reader_dir): Change to std::string.
(jit_reader_load_command): Update.
* main.c (gdb_datadir): Change to std::string.
(python_libdir): Likewise.
(set_gdb_data_directory): Update.
(relocate_path): Change to return std::string.
(relocate_gdb_directory): Change to return std::string.
(relocate_gdbinit_path_maybe_in_datadir): Update.
(captured_main_1): Update.
* python/python.c (do_start_initialization): Update.
* top.c (show_gdb_datadir): Update.
* xml-syscall.c (xml_init_syscalls_info): Update.
(init_syscalls_info): Update.
2019-09-11 Christian Biesinger <cbiesinger@google.com>
* main.c (relocate_gdbinit_path_maybe_in_datadir): Factor this code

2
gdb/auto-load.c
View File

@ -178,7 +178,7 @@ static std::vector<gdb::unique_xmalloc_ptr<char>>
auto_load_expand_dir_vars (const char *string)
{
char *s = xstrdup (string);
substitute_path_component (&s, "$datadir", gdb_datadir);
substitute_path_component (&s, "$datadir", gdb_datadir.c_str ());
substitute_path_component (&s, "$debugdir", debug_file_directory);
if (debug_auto_load && strcmp (s, string) != 0)

8
gdb/defs.h
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@ -115,11 +115,11 @@ extern int dbx_commands;
extern char *gdb_sysroot;
/* * GDB datadir, used to store data files. */
extern char *gdb_datadir;
extern std::string gdb_datadir;
/* * If non-NULL, the possibly relocated path to python's "lib" directory
/* * If not empty, the possibly relocated path to python's "lib" directory
specified with --with-python. */
extern char *python_libdir;
extern std::string python_libdir;
/* * Search path for separate debug files. */
extern char *debug_file_directory;
@ -282,7 +282,7 @@ struct value;
/* This really belong in utils.c (path-utils.c?), but it references some
globals that are currently only available to main.c. */
extern char *relocate_gdb_directory (const char *initial, bool relocatable);
extern std::string relocate_gdb_directory (const char *initial, bool relocatable);
/* Annotation stuff. */

5
gdb/guile/guile.c
View File

@ -325,7 +325,7 @@ gdbscm_execute_gdb_command (SCM command_scm, SCM rest)
static SCM
gdbscm_data_directory (void)
{
return gdbscm_scm_from_c_string (gdb_datadir);
return gdbscm_scm_from_c_string (gdb_datadir.c_str ());
}
/* (guile-data-directory) -> string */
@ -582,7 +582,8 @@ initialize_scheme_side (void)
{
char *boot_scm_path;
guile_datadir = concat (gdb_datadir, SLASH_STRING, "guile", (char *) NULL);
guile_datadir = concat (gdb_datadir.c_str (), SLASH_STRING, "guile",
(char *) NULL);
boot_scm_path = concat (guile_datadir, SLASH_STRING, "gdb",
SLASH_STRING, boot_scm_filename, (char *) NULL);

4
gdb/jit.c
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@ -42,7 +42,7 @@
#include "readline/tilde.h"
#include "completer.h"
static const char *jit_reader_dir = NULL;
static std::string jit_reader_dir;
static const struct objfile_data *jit_objfile_data;
@ -216,7 +216,7 @@ jit_reader_load_command (const char *args, int from_tty)
error (_("JIT reader already loaded. Run jit-reader-unload first."));
if (!IS_ABSOLUTE_PATH (file.get ()))
file.reset (xstrprintf ("%s%s%s", jit_reader_dir, SLASH_STRING,
file.reset (xstrprintf ("%s%s%s", jit_reader_dir.c_str (), SLASH_STRING,
file.get ()));
loaded_jit_reader = jit_reader_load (file.get ());

89
gdb/main.c
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@ -61,7 +61,7 @@ int dbx_commands = 0;
char *gdb_sysroot = 0;
/* GDB datadir, used to store data files. */
char *gdb_datadir = 0;
std::string gdb_datadir;
/* Non-zero if GDB_DATADIR was provided on the command line.
This doesn't track whether data-directory is set later from the
@ -70,7 +70,7 @@ static int gdb_datadir_provided = 0;
/* If gdb was configured with --with-python=/path,
the possibly relocated path to python's lib directory. */
char *python_libdir = 0;
std::string python_libdir;
/* Target IO streams. */
struct ui_file *gdb_stdtargin;
@ -121,71 +121,70 @@ set_gdb_data_directory (const char *new_datadir)
else if (!S_ISDIR (st.st_mode))
warning (_("%s is not a directory."), new_datadir);
xfree (gdb_datadir);
gdb_datadir = gdb_realpath (new_datadir).release ();
gdb_datadir = gdb_realpath (new_datadir).get ();
/* gdb_realpath won't return an absolute path if the path doesn't exist,
but we still want to record an absolute path here. If the user entered
"../foo" and "../foo" doesn't exist then we'll record $(pwd)/../foo which
isn't canonical, but that's ok. */
if (!IS_ABSOLUTE_PATH (gdb_datadir))
if (!IS_ABSOLUTE_PATH (gdb_datadir.c_str ()))
{
gdb::unique_xmalloc_ptr<char> abs_datadir = gdb_abspath (gdb_datadir);
gdb::unique_xmalloc_ptr<char> abs_datadir
= gdb_abspath (gdb_datadir.c_str ());
xfree (gdb_datadir);
gdb_datadir = abs_datadir.release ();
gdb_datadir = abs_datadir.get ();
}
}
/* Relocate a file or directory. PROGNAME is the name by which gdb
was invoked (i.e., argv[0]). INITIAL is the default value for the
file or directory. RELOCATABLE is true if the value is relocatable,
false otherwise. Returns a newly allocated string; this may return
NULL under the same conditions as make_relative_prefix. */
false otherwise. This may return an empty string under the same
conditions as make_relative_prefix returning NULL. */
static char *
static std::string
relocate_path (const char *progname, const char *initial, bool relocatable)
{
if (relocatable)
return make_relative_prefix (progname, BINDIR, initial);
return xstrdup (initial);
{
gdb::unique_xmalloc_ptr<char> str (make_relative_prefix (progname,
BINDIR,
initial));
if (str != nullptr)
return str.get ();
return std::string ();
}
return initial;
}
/* Like relocate_path, but specifically checks for a directory.
INITIAL is relocated according to the rules of relocate_path. If
the result is a directory, it is used; otherwise, INITIAL is used.
The chosen directory is then canonicalized using lrealpath. This
function always returns a newly-allocated string. */
The chosen directory is then canonicalized using lrealpath. */
char *
std::string
relocate_gdb_directory (const char *initial, bool relocatable)
{
char *dir;
dir = relocate_path (gdb_program_name, initial, relocatable);
if (dir)
std::string dir = relocate_path (gdb_program_name, initial, relocatable);
if (!dir.empty ())
{
struct stat s;
if (*dir == '\0' || stat (dir, &s) != 0 || !S_ISDIR (s.st_mode))
if (stat (dir.c_str (), &s) != 0 || !S_ISDIR (s.st_mode))
{
xfree (dir);
dir = NULL;
dir.clear ();
}
}
if (!dir)
dir = xstrdup (initial);
if (dir.empty ())
dir = initial;
/* Canonicalize the directory. */
if (*dir)
if (!dir.empty ())
{
char *canon_sysroot = lrealpath (dir);
gdb::unique_xmalloc_ptr<char> canon_sysroot (lrealpath (dir.c_str ()));
if (canon_sysroot)
{
xfree (dir);
dir = canon_sysroot;
}
dir = canon_sysroot.get ();
}
return dir;
@ -220,14 +219,9 @@ relocate_gdbinit_path_maybe_in_datadir (const std::string& file)
}
else
{
char *relocated = relocate_path (gdb_program_name,
file.c_str (),
SYSTEM_GDBINIT_RELOCATABLE);
if (relocated != nullptr)
{
relocated_path = relocated;
xfree (relocated);
}
relocated_path = relocate_path (gdb_program_name,
file.c_str (),
SYSTEM_GDBINIT_RELOCATABLE);
}
return relocated_path;
}
@ -541,20 +535,23 @@ captured_main_1 (struct captured_main_args *context)
perror_warning_with_name (_("error finding working directory"));
/* Set the sysroot path. */
gdb_sysroot = relocate_gdb_directory (TARGET_SYSTEM_ROOT,
TARGET_SYSTEM_ROOT_RELOCATABLE);
gdb_sysroot
= xstrdup (relocate_gdb_directory (TARGET_SYSTEM_ROOT,
TARGET_SYSTEM_ROOT_RELOCATABLE).c_str ());
if (gdb_sysroot == NULL || *gdb_sysroot == '\0')
if (*gdb_sysroot == '\0')
{
xfree (gdb_sysroot);
gdb_sysroot = xstrdup (TARGET_SYSROOT_PREFIX);
}
debug_file_directory = relocate_gdb_directory (DEBUGDIR,
DEBUGDIR_RELOCATABLE);
debug_file_directory
= xstrdup (relocate_gdb_directory (DEBUGDIR,
DEBUGDIR_RELOCATABLE).c_str ());
gdb_datadir = relocate_gdb_directory (GDB_DATADIR,
GDB_DATADIR_RELOCATABLE);
gdb_datadir
= xstrdup (relocate_gdb_directory (GDB_DATADIR,
GDB_DATADIR_RELOCATABLE).c_str ());
#ifdef WITH_PYTHON_PATH
{

2
gdb/python/python.c
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@ -1608,7 +1608,7 @@ do_start_initialization ()
/foo/lib/pythonX.Y/...
This must be done before calling Py_Initialize. */
gdb::unique_xmalloc_ptr<char> progname
(concat (ldirname (python_libdir).c_str (), SLASH_STRING, "bin",
(concat (ldirname (python_libdir.c_str ()).c_str (), SLASH_STRING, "bin",
SLASH_STRING, "python", (char *) NULL));
#ifdef IS_PY3K
std::string oldloc = setlocale (LC_ALL, NULL);

2
gdb/top.c
View File

@ -2038,7 +2038,7 @@ show_gdb_datadir (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file, _("GDB's data directory is \"%s\".\n"),
gdb_datadir);
gdb_datadir.c_str ());
}
static void

7
gdb/xml-syscall.c
View File

@ -316,7 +316,8 @@ static struct syscalls_info *
xml_init_syscalls_info (const char *filename)
{
gdb::optional<gdb::char_vector> full_file
= xml_fetch_content_from_file (filename, gdb_datadir);
= xml_fetch_content_from_file (filename,
const_cast<char *>(gdb_datadir.c_str ()));
if (!full_file)
return NULL;
@ -336,7 +337,7 @@ init_syscalls_info (struct gdbarch *gdbarch)
/* Should we re-read the XML info for this target? */
if (syscalls_info != NULL && !syscalls_info->my_gdb_datadir.empty ()
&& filename_cmp (syscalls_info->my_gdb_datadir.c_str (),
gdb_datadir) != 0)
gdb_datadir.c_str ()) != 0)
{
/* The data-directory changed from the last time we used it.
It means that we have to re-read the XML info. */
@ -361,7 +362,7 @@ init_syscalls_info (struct gdbarch *gdbarch)
{
if (xml_syscall_file != NULL)
warning (_("Could not load the syscall XML file `%s/%s'."),
gdb_datadir, xml_syscall_file);
gdb_datadir.c_str (), xml_syscall_file);
else
warning (_("There is no XML file to open."));