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[Emacs-diffs] master 7f129f2: Simpler way to export HAVE_X_WINDOWS to GD
From: |
Paul Eggert |
Subject: |
[Emacs-diffs] master 7f129f2: Simpler way to export HAVE_X_WINDOWS to GDB |
Date: |
Thu, 28 Mar 2019 00:52:03 -0400 (EDT) |
branch: master
commit 7f129f2ecfbdded5c31e9d9fc8bf11ce0e017000
Author: Paul Eggert <address@hidden>
Commit: Paul Eggert <address@hidden>
Simpler way to export HAVE_X_WINDOWS to GDB
* src/.gdbinit: Simplify by removing dependency on globals
implementation. This is useful for a future performance
improvement that I have in mind.
* src/alloc.c (enum defined_HAVE_X_WINDOWS, defined_HAVE_X_WINDOWS):
New enum and constant.
(gdb_make_enums_visible) [__GNUC__]: Use it, to make
defined_HAVE_X_WINDOWS visible to GDB.
---
src/.gdbinit | 24 ++++++------------------
src/alloc.c | 7 +++++++
2 files changed, 13 insertions(+), 18 deletions(-)
diff --git a/src/.gdbinit b/src/.gdbinit
index 7553f07..b8b3031 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -1219,24 +1219,12 @@ show environment TERM
# terminate_due_to_signal when an assertion failure is non-fatal.
break terminate_due_to_signal
-# x_error_quitter is defined only on X. But window-system is set up
-# only at run time, during Emacs startup, so we need to defer setting
-# the breakpoint. init_sys_modes is the first function called on
-# every platform after init_display, where window-system is set.
-tbreak init_sys_modes
-commands
- silent
- xsymname globals.f_Vinitial_window_system
- xgetptr $symname
- set $tem = (struct Lisp_String *) $ptr
- set $tem = (char *) $tem->u.s.data
- # If we are running in synchronous mode, we want a chance to look
- # around before Emacs exits. Perhaps we should put the break
- # somewhere else instead...
- if $tem[0] == 'x' && $tem[1] == '\0'
- break x_error_quitter
- end
- continue
+# x_error_quitter is defined only if defined_HAVE_X_WINDOWS.
+# If we are running in synchronous mode, we want a chance to look
+# around before Emacs exits. Perhaps we should put the break
+# somewhere else instead...
+if defined_HAVE_X_WINDOWS
+ break x_error_quitter
end
diff --git a/src/alloc.c b/src/alloc.c
index 3a8bd30..e48807c 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -7649,6 +7649,12 @@ than 2**N, where N is this variable's value. N should
be nonnegative. */);
defsubr (&Ssuspicious_object);
}
+#ifdef HAVE_X_WINDOWS
+enum defined_HAVE_X_WINDOWS { defined_HAVE_X_WINDOWS = true };
+#else
+enum defined_HAVE_X_WINDOWS { defined_HAVE_X_WINDOWS = false };
+#endif
+
/* When compiled with GCC, GDB might say "No enum type named
pvec_type" if we don't have at least one symbol with that type, and
then xbacktrace could fail. Similarly for the other enums and
@@ -7667,5 +7673,6 @@ union
enum MAX_ALLOCA MAX_ALLOCA;
enum More_Lisp_Bits More_Lisp_Bits;
enum pvec_type pvec_type;
+ enum defined_HAVE_X_WINDOWS defined_HAVE_X_WINDOWS;
} const EXTERNALLY_VISIBLE gdb_make_enums_visible = {0};
#endif /* __GNUC__ */
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