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-rw-r--r--gdb/ChangeLog7
-rw-r--r--gdb/NEWS7
-rw-r--r--gdb/doc/ChangeLog6
-rw-r--r--gdb/doc/gdb.texinfo11
-rw-r--r--gdb/main.c39
5 files changed, 66 insertions, 4 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 1aeafec..0b79e91 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2012-11-16 Doug Evans <dje@google.com>
+
+ * main.c (gdb_datadir_provided): New static global.
+ (get_init_files): If --data-directory is provided,
+ and SYSTEM_GDBINIT lives in data-directory, look for it there.
+ * NEWS: Mention it.
+
2012-11-15 Pierre Muller <muller@sourceware.org>
ARI fixes: move gdb_wait and gdb_stat headers to common subdirectory.
diff --git a/gdb/NEWS b/gdb/NEWS
index 9375218..5e3f54d 100644
--- a/gdb/NEWS
+++ b/gdb/NEWS
@@ -3,6 +3,13 @@
*** Changes since GDB 7.5
+* If the configured location of system.gdbinit file (as given by the
+ --with-system-gdbinit option at configure time) is in the
+ data-directory (as specified by --with-gdb-datadir at configure
+ time) or in one of its subdirectories, then GDB will look for the
+ system-wide init file in the directory specified by the
+ --data-directory command-line option.
+
* New command line options:
-nh Disables auto-loading of ~/.gdbinit, but still executes all the
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index a774681..8fda5d5 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,9 @@
+2012-11-16 Doug Evans <dje@google.com>
+
+ * gdb.texinfo (System-wide configuration): If the system-wide init
+ file lives in the data-directory, and --data-directory is provided,
+ look for it there.
+
2012-11-15 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Signaling): Fix typo.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index 945a66b..80148f7 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -34765,6 +34765,17 @@ then @value{GDBN} will always look for @file{/usr/share/gdb/gdbinit},
wherever @value{GDBN} is installed.
@end itemize
+If the configured location of the system-wide init file (as given by the
+@option{--with-system-gdbinit} option at configure time) is in the
+data-directory (as specified by @option{--with-gdb-datadir} at configure
+time) or in one of its subdirectories, then @value{GDBN} will look for the
+system-wide init file in the directory specified by the
+@option{--data-directory} command-line option.
+Note that the system-wide init file is only read once, during @value{GDBN}
+initialization. If the data-directory is changed after @value{GDBN} has
+started with the @code{set data-directory} command, the file will not be
+reread.
+
@node Maintenance Commands
@appendix Maintenance Commands
@cindex maintenance commands
diff --git a/gdb/main.c b/gdb/main.c
index 923a7fe..57fe94f 100644
--- a/gdb/main.c
+++ b/gdb/main.c
@@ -60,6 +60,11 @@ char *gdb_sysroot = 0;
/* GDB datadir, used to store data files. */
char *gdb_datadir = 0;
+/* Non-zero if GDB_DATADIR was provided on the command line.
+ This doesn't track whether data-directory is set later from the
+ command line, but we don't reread system.gdbinit when that happens. */
+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;
@@ -163,13 +168,38 @@ get_init_files (char **system_gdbinit,
if (!initialized)
{
struct stat homebuf, cwdbuf, s;
- char *homedir, *relocated_sysgdbinit;
+ char *homedir;
if (SYSTEM_GDBINIT[0])
{
- relocated_sysgdbinit = relocate_path (gdb_program_name,
- SYSTEM_GDBINIT,
- SYSTEM_GDBINIT_RELOCATABLE);
+ int datadir_len = strlen (GDB_DATADIR);
+ int sys_gdbinit_len = strlen (SYSTEM_GDBINIT);
+ char *relocated_sysgdbinit;
+
+ /* If SYSTEM_GDBINIT lives in data-directory, and data-directory
+ has been provided, search for SYSTEM_GDBINIT there. */
+ if (gdb_datadir_provided
+ && datadir_len < sys_gdbinit_len
+ && strncmp (SYSTEM_GDBINIT, GDB_DATADIR, datadir_len) == 0
+ && strchr (SLASH_STRING, SYSTEM_GDBINIT[datadir_len]) != NULL)
+ {
+ /* Append the part of SYSTEM_GDBINIT that follows GDB_DATADIR
+ to gdb_datadir. */
+ char *tmp_sys_gdbinit = xstrdup (SYSTEM_GDBINIT + datadir_len);
+ char *p;
+
+ for (p = tmp_sys_gdbinit; strchr (SLASH_STRING, *p); ++p)
+ continue;
+ relocated_sysgdbinit = concat (gdb_datadir, SLASH_STRING, p,
+ NULL);
+ xfree (tmp_sys_gdbinit);
+ }
+ else
+ {
+ relocated_sysgdbinit = relocate_path (gdb_program_name,
+ SYSTEM_GDBINIT,
+ SYSTEM_GDBINIT_RELOCATABLE);
+ }
if (relocated_sysgdbinit && stat (relocated_sysgdbinit, &s) == 0)
sysgdbinit = relocated_sysgdbinit;
else
@@ -591,6 +621,7 @@ captured_main (void *data)
case 'D':
xfree (gdb_datadir);
gdb_datadir = xstrdup (optarg);
+ gdb_datadir_provided = 1;
break;
#ifdef GDBTK
case 'z':