* bug#29957: 27.0.50; xgettype (and friends) don't know about Lisp_Word
@ 2018-01-03 4:21 Stefan Monnier
2018-01-03 6:40 ` Paul Eggert
0 siblings, 1 reply; 2+ messages in thread
From: Stefan Monnier @ 2018-01-03 4:21 UTC (permalink / raw)
To: 29957
Package: Emacs
Version: 27.0.50
% cd .../emacs/src
% gdb emacs
(gdb) b main
(gdb) r
(gdb) xgettype Qnil
Tells me "Argument to arithmetic operation not a number or boolean."
`xbacktrace` says the same.
This seems to be due to the recent change to the representation of
List_Object.
Stefan
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#29957: 27.0.50; xgettype (and friends) don't know about Lisp_Word
2018-01-03 4:21 bug#29957: 27.0.50; xgettype (and friends) don't know about Lisp_Word Stefan Monnier
@ 2018-01-03 6:40 ` Paul Eggert
0 siblings, 0 replies; 2+ messages in thread
From: Paul Eggert @ 2018-01-03 6:40 UTC (permalink / raw)
To: Stefan Monnier; +Cc: 29957-done
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Thanks for reporting that; I installed the attached.
[-- Attachment #2: 0001-Fix-.gdbinit-to-work-with-Lisp_Word.patch --]
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From f8b4e87d5d4f57954b50677add76ce5136211dc1 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue, 2 Jan 2018 22:38:01 -0800
Subject: [PATCH] Fix .gdbinit to work with Lisp_Word
Problem reported by Stefan Monnier (Bug#29957).
* src/.gdbinit (xgetptr, xgetint, xgettype):
Cast Lisp_Word value to EMACS_INT, since it might be a pointer now.
---
src/.gdbinit | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/.gdbinit b/src/.gdbinit
index de35ef1..a5411e6 100644
--- a/src/.gdbinit
+++ b/src/.gdbinit
@@ -49,7 +49,7 @@ define xgetptr
else
set $bugfix = $arg0
end
- set $ptr = $bugfix & VALMASK
+ set $ptr = (EMACS_INT) $bugfix & VALMASK
end
define xgetint
@@ -58,7 +58,7 @@ define xgetint
else
set $bugfix = $arg0
end
- set $int = $bugfix << (USE_LSB_TAG ? 0 : INTTYPEBITS) >> INTTYPEBITS
+ set $int = (EMACS_INT) $bugfix << (USE_LSB_TAG ? 0 : INTTYPEBITS) >> INTTYPEBITS
end
define xgettype
@@ -67,7 +67,7 @@ define xgettype
else
set $bugfix = $arg0
end
- set $type = (enum Lisp_Type) (USE_LSB_TAG ? $bugfix & (1 << GCTYPEBITS) - 1 : (EMACS_UINT) $bugfix >> VALBITS)
+ set $type = (enum Lisp_Type) (USE_LSB_TAG ? (EMACS_INT) $bugfix & (1 << GCTYPEBITS) - 1 : (EMACS_UINT) $bugfix >> VALBITS)
end
define xgetsym
--
2.7.4
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2018-01-03 4:21 bug#29957: 27.0.50; xgettype (and friends) don't know about Lisp_Word Stefan Monnier
2018-01-03 6:40 ` Paul Eggert
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