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More alloca cleanups.

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* bootstrap (gnulib_modules): Remove alloca.  Bison doesn't need
it itself.
* src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
don't use alloca any more.

* data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
__BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
(defined alloca || defined _ALLOCA_H)]: Don't include <stdlib.h>;
not needed in this case.
* tests/torture.at (Exploding the Stack Size with Alloca): Adjust
to match yacc.c, to test more hosts.
This commit is contained in:
Paul Eggert
2005-09-21 19:54:48 +00:00
parent ac2434287d
commit 0d50976f3c
5 changed files with 18 additions and 11 deletions
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14
ChangeLog
View File

@@ -1,3 +1,17 @@
2005-09-21 Paul Eggert <eggert@cs.ucla.edu>
* bootstrap (gnulib_modules): Remove alloca. Bison doesn't need
it itself.
* src/main.c (main) [C_ALLOCA]: Don't flush alloca'ed memory; we
don't use alloca any more.
* data/yacc.c [YYSTACK_USE_ALLOCA && !defined __GNUC__ && ! defined
__BUILTIN_VA_ARG_INCR && ! defined _AIX && ! defined _MSC_VER &&
(defined alloca || defined _ALLOCA_H)]: Don't include <stdlib.h>;
not needed in this case.
* tests/torture.at (Exploding the Stack Size with Alloca): Adjust
to match yacc.c, to test more hosts.
2005-09-20 Paul Eggert <eggert@cs.ucla.edu>
* data/yacc.c (YYSIZE_T): Reindent to make it clearer. This

1
bootstrap
View File

@@ -92,7 +92,6 @@ esac
<$GNULIB_SRCDIR/gnulib-tool || exit
gnulib_modules='
alloca
argmatch
dirname
error

3
data/yacc.c
View File

@@ -263,7 +263,8 @@ b4_syncline([@oline@], [@ofile@])[
# define alloca _alloca
# else
# define YYSTACK_ALLOC alloca
# if ! defined (_STDLIB_H) && (defined (__STDC__) || defined (__cplusplus))
# if (! defined (alloca) && ! defined (_ALLOCA_H) && ! defined (_STDLIB_H) \
&& (defined (__STDC__) || defined (__cplusplus)))
# include <stdlib.h> /* INFRINGES ON USER NAME SPACE */
# ifndef _STDLIB_H
# define _STDLIB_H 1

8
src/main.c
View File

@@ -172,14 +172,6 @@ main (int argc, char *argv[])
scanner_free ();
muscle_free ();
uniqstrs_free ();
/* If using alloca.c, flush the alloca'ed memory for the benefit of
people running Bison as a library in IDEs. */
#if C_ALLOCA
{
extern void *alloca (size_t);
alloca (0);
}
#endif
timevar_pop (TV_FREE);
if (trace_flag & trace_bitsets)

3
tests/torture.at
View File

@@ -444,7 +444,8 @@ AT_COMPILE([input])
AT_SETUP([Exploding the Stack Size with Alloca])
AT_DATA_STACK_TORTURE([[
#if defined __GNUC__ || defined alloca
#if (defined __GNUC__ || defined __BUILTIN_VA_ARG_INCR \
|| defined _AIX || defined _MSC_VER || defined alloca || defined _ALLOCA_H)
# define YYSTACK_USE_ALLOCA 1
#endif
]])