#include "event-top.h"
#include "infrun.h"
#include "gdbsupport/signals-state-save-restore.h"
+#include <algorithm>
#include <vector>
#include "gdbsupport/pathstuff.h"
#include "cli/cli-style.h"
#ifdef GDBTK
#include "gdbtk/generic/gdbtk.h"
#endif
+#include "gdbsupport/alt-stack.h"
/* The selected interpreter. This will be used as a set command
variable, so it should always be malloc'ed - since
otherwise. */
static std::string
-relocate_gdbinit_path_maybe_in_datadir (const std::string& file)
+relocate_gdbinit_path_maybe_in_datadir (const std::string &file,
+ bool relocatable)
{
size_t datadir_len = strlen (GDB_DATADIR);
}
else
{
- relocated_path = relocate_path (gdb_program_name,
- file.c_str (),
- SYSTEM_GDBINIT_RELOCATABLE);
+ relocated_path = relocate_path (gdb_program_name, file.c_str (),
+ relocatable);
}
return relocated_path;
}
to be loaded, then SYSTEM_GDBINIT (resp. HOME_GDBINIT and
LOCAL_GDBINIT) is set to the empty string. */
static void
-get_init_files (std::string *system_gdbinit,
+get_init_files (std::vector<std::string> *system_gdbinit,
std::string *home_gdbinit,
std::string *local_gdbinit)
{
- static std::string sysgdbinit;
+ static std::vector<std::string> sysgdbinit;
static std::string homeinit;
static std::string localinit;
static int initialized = 0;
if (SYSTEM_GDBINIT[0])
{
std::string relocated_sysgdbinit
- = relocate_gdbinit_path_maybe_in_datadir (SYSTEM_GDBINIT);
+ = relocate_gdbinit_path_maybe_in_datadir
+ (SYSTEM_GDBINIT, SYSTEM_GDBINIT_RELOCATABLE);
if (!relocated_sysgdbinit.empty ()
&& stat (relocated_sysgdbinit.c_str (), &s) == 0)
- sysgdbinit = relocated_sysgdbinit;
+ sysgdbinit.push_back (relocated_sysgdbinit);
+ }
+ if (SYSTEM_GDBINIT_DIR[0])
+ {
+ std::string relocated_gdbinit_dir
+ = relocate_gdbinit_path_maybe_in_datadir
+ (SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_DIR_RELOCATABLE);
+ if (!relocated_gdbinit_dir.empty ()) {
+ gdb_dir_up dir (opendir (relocated_gdbinit_dir.c_str ()));
+ if (dir != nullptr)
+ {
+ std::vector<std::string> files;
+ for (;;)
+ {
+ struct dirent *ent = readdir (dir.get ());
+ if (ent == nullptr)
+ break;
+ std::string name (ent->d_name);
+ if (name == "." || name == "..")
+ continue;
+ /* ent->d_type is not available on all systems (e.g. mingw,
+ Solaris), so we have to call stat(). */
+ std::string filename
+ = relocated_gdbinit_dir + SLASH_STRING + name;
+ if (stat (filename.c_str (), &s) != 0
+ || !S_ISREG (s.st_mode))
+ continue;
+ const struct extension_language_defn *extlang
+ = get_ext_lang_of_file (filename.c_str ());
+ /* We effectively don't support "set script-extension
+ off/soft", because we are loading system init files here,
+ so it does not really make sense to depend on a
+ setting. */
+ if (extlang != nullptr && ext_lang_present_p (extlang))
+ files.push_back (std::move (filename));
+ }
+ std::sort (files.begin (), files.end ());
+ sysgdbinit.insert (sysgdbinit.end (),
+ files.begin (), files.end ());
+ }
+ }
}
const char *homedir = getenv ("HOME");
*local_gdbinit = localinit;
}
-/* Try to set up an alternate signal stack for SIGSEGV handlers.
- This allows us to handle SIGSEGV signals generated when the
- normal process stack is exhausted. If this stack is not set
- up (sigaltstack is unavailable or fails) and a SIGSEGV is
- generated when the normal stack is exhausted then the program
- will behave as though no SIGSEGV handler was installed. */
-
-static void
-setup_alternate_signal_stack (void)
-{
-#ifdef HAVE_SIGALTSTACK
- stack_t ss;
-
- /* FreeBSD versions older than 11.0 use char * for ss_sp instead of
- void *. This cast works with both types. */
- ss.ss_sp = (char *) xmalloc (SIGSTKSZ);
- ss.ss_size = SIGSTKSZ;
- ss.ss_flags = 0;
-
- sigaltstack(&ss, NULL);
-#endif
-}
-
/* Call command_loop. */
/* Prevent inlining this function for the benefit of GDB's selftests
save_original_signals_state (quiet);
/* Try to set up an alternate signal stack for SIGSEGV handlers. */
- setup_alternate_signal_stack ();
+ gdb::alternate_signal_stack signal_stack;
/* Initialize all files. */
gdb_init (gdb_program_name);
/* Lookup gdbinit files. Note that the gdbinit file name may be
overridden during file initialization, so get_init_files should be
called after gdb_init. */
- std::string system_gdbinit;
+ std::vector<std::string> system_gdbinit;
std::string home_gdbinit;
std::string local_gdbinit;
get_init_files (&system_gdbinit, &home_gdbinit, &local_gdbinit);
processed; it sets global parameters, which are independent of
what file you are debugging or what directory you are in. */
if (!system_gdbinit.empty () && !inhibit_gdbinit)
- ret = catch_command_errors (source_script, system_gdbinit.c_str (), 0);
+ {
+ for (const std::string &file : system_gdbinit)
+ ret = catch_command_errors (source_script, file.c_str (), 0);
+ }
/* Read and execute $HOME/.gdbinit file, if it exists. This is done
*before* all the command line arguments are processed; it sets
static void
print_gdb_help (struct ui_file *stream)
{
- std::string system_gdbinit;
+ std::vector<std::string> system_gdbinit;
std::string home_gdbinit;
std::string local_gdbinit;
At startup, GDB reads the following init files and executes their commands:\n\
"), stream);
if (!system_gdbinit.empty ())
- fprintf_unfiltered (stream, _("\
- * system-wide init file: %s\n\
-"), system_gdbinit.c_str ());
+ {
+ std::string output;
+ for (size_t idx = 0; idx < system_gdbinit.size (); ++idx)
+ {
+ output += system_gdbinit[idx];
+ if (idx < system_gdbinit.size () - 1)
+ output += ", ";
+ }
+ fprintf_unfiltered (stream, _("\
+ * system-wide init files: %s\n\
+"), output.c_str ());
+ }
if (!home_gdbinit.empty ())
fprintf_unfiltered (stream, _("\
* user-specific init file: %s\n\
projects / deliverable / binutils-gdb.git / blobdiff