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[Emacs-diffs] emacs-26 40b3317: * etc/DEBUG: Minor copyedits.
From: |
Eli Zaretskii |
Subject: |
[Emacs-diffs] emacs-26 40b3317: * etc/DEBUG: Minor copyedits. |
Date: |
Sat, 28 Apr 2018 07:29:25 -0400 (EDT) |
branch: emacs-26
commit 40b3317046fc527e3e3d266a8a51f9cf057aa6be
Author: Eli Zaretskii <address@hidden>
Commit: Eli Zaretskii <address@hidden>
* etc/DEBUG: Minor copyedits.
---
etc/DEBUG | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/etc/DEBUG b/etc/DEBUG
index 7171d6d..3db5002 100644
--- a/etc/DEBUG
+++ b/etc/DEBUG
@@ -42,6 +42,9 @@ created in the 'src' directory.
*** Configuring GDB
+To start GDB, you can simply type "gdb RET" at the shell prompt.
+However, we recommend starting GDB from Emacs, see below.
+
When you debug Emacs with GDB, you should start GDB in the directory
where the Emacs executable was made (the 'src' directory in the Emacs
source tree). That directory has a .gdbinit file that defines various
@@ -51,16 +54,19 @@ Emacs Redisplay problems".)
Starting the debugger from Emacs, via the "M-x gdb" command (described
below), when the current buffer visits one of the Emacs C source files
-will automatically start GDB in the 'src' directory.
+will automatically start GDB in the 'src' directory. If you invoke
+"M-x gdb" from a buffer whose default directory is different, such as
+from the "*scratch*" buffer, you can change the default directory with
+the "M-x cd" command before starting the debugger.
-Some GDB versions by default do not automatically load .gdbinit files
-in the directory where you invoke GDB. With those versions of GDB,
-you will see a warning when GDB starts, like this:
+Recent GDB versions by default do not automatically load .gdbinit
+files in the directory where you invoke GDB. With those versions of
+GDB, you will see a warning when GDB starts, like this:
warning: File ".../src/.gdbinit" auto-loading has been declined by your
`auto-load safe-path' set to "$debugdir:$datadir/auto-load".
The simplest way to fix this is to add the following line to your
-~/.gdbinit file:
+~/.gdbinit file (creating such a file if it doesn't already exist):
add-auto-load-safe-path /path/to/emacs/src/.gdbinit
@@ -132,9 +138,12 @@ to the debugger".
You are now ready to start your debugging session.
+*** Running Emacs from GDB
+
If you are starting a new Emacs session, type "run", followed by any
command-line arguments (e.g., "-Q") into the *gud-emacs* buffer and
-press RET.
+press RET. If you ran GDB outside of Emacs, type "run" followed by
+the command-line arguments at the GDB prompt instead.
If you attached the debugger to a running Emacs, type "continue" into
the *gud-emacs* buffer and press RET.
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