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Avoid free from a signal handler.
	* Makefile.in (xfree.o): Add readline.h.
	* xfree.c: Include stdio.h and readline.h.
	(xfree): Return on RL_STATE_SIGHANDLER.
	* xmalloc.h (xfree): New definition.
This commit is contained in:
Jan Kratochvil 2011-06-29 20:51:10 +00:00
parent 9fe77896a7
commit 0d1b033387
4 changed files with 19 additions and 1 deletions
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8
readline/ChangeLog.gdb
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@ -1,3 +1,11 @@
2011-06-29 Jan Kratochvil <jan.kratochvil@redhat.com>
Avoid free from a signal handler.
* Makefile.in (xfree.o): Add readline.h.
* xfree.c: Include stdio.h and readline.h.
(xfree): Return on RL_STATE_SIGHANDLER.
* xmalloc.h (xfree): New definition.
2011-05-11 Jan Kratochvil <jan.kratochvil@redhat.com>
Workaround gdb.base/completion.exp regression on readline-6.2.

2
readline/Makefile.in
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@ -422,7 +422,7 @@ vi_mode.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
vi_mode.o: readline.h keymaps.h rltypedefs.h chardefs.h tilde.h
vi_mode.o: history.h ansi_stdlib.h rlstdc.h
xfree.o: ${BUILD_DIR}/config.h
xfree.o: ansi_stdlib.h
xfree.o: ansi_stdlib.h readline.h
xmalloc.o: ${BUILD_DIR}/config.h
xmalloc.o: ansi_stdlib.h

7
readline/xfree.c
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@ -31,7 +31,10 @@
# include "ansi_stdlib.h"
#endif /* HAVE_STDLIB_H */
#include <stdio.h>
#include "xmalloc.h"
#include "readline.h"
/* **************************************************************** */
/* */
@ -45,6 +48,10 @@ void
xfree (string)
PTR_T string;
{
/* Leak a bit. */
if (RL_ISSTATE(RL_STATE_SIGHANDLER))
return;
if (string)
free (string);
}

3
readline/xmalloc.h
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@ -38,6 +38,9 @@
#endif /* !PTR_T */
/* xmalloc and xrealloc should be also protected from RL_STATE_SIGHANDLER. */
#define xfree xfree_readline
extern PTR_T xmalloc PARAMS((size_t));
extern PTR_T xrealloc PARAMS((void *, size_t));
extern void xfree PARAMS((void *));