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libiberty.h (ASTRDUP): New macro.

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include:
	* libiberty.h (ASTRDUP): New macro.
	libiberty_optr, libiberty_nptr, libiberty_len): Declare.

libiberty:
	* alloca.c (libiberty_optr, libiberty_nptr, libiberty_len):
	Define.

gcc:
	* c-aux-info.c (affix_data_type): Use ASTRDUP in lieu of
	alloca/strcpy.

From-SVN: r45657
This commit is contained in:
Kaveh R. Ghazi 2001-09-17 18:48:45 +00:00 • committed by Kaveh Ghazi
parent 14baae01f6
commit c1d49704bc
6 changed files with 35 additions and 3 deletions
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5
gcc/ChangeLog
View file

@ -1,3 +1,8 @@
2001-09-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* c-aux-info.c (affix_data_type): Use ASTRDUP in lieu of
alloca/strcpy.
2001-09-17 Neil Booth <neil@daikokuya.demon.co.uk>
* cpphash.h (_cpp_lex_direct): New.

4
gcc/c-aux-info.c
View file

@ -64,13 +64,11 @@ static char *
affix_data_type (param)
const char *param;
{
char *type_or_decl = (char *) alloca (strlen (param) + 1);
char *const type_or_decl = ASTRDUP (param);
char *p = type_or_decl;
char *qualifiers_then_data_type;
char saved;
strcpy (type_or_decl, param);
/* Skip as many leading const's or volatile's as there are. */
for (;;)

5
include/ChangeLog
View file

@ -1,3 +1,8 @@
2001-09-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* libiberty.h (ASTRDUP): New macro.
libiberty_optr, libiberty_nptr, libiberty_len): Declare.
2001-08-29 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* ansidecl.h: Update comments reflecting previous change.

13
include/libiberty.h
View file

@ -246,12 +246,25 @@ extern PTR C_alloca PARAMS((size_t));
#if GCC_VERSION >= 2000 && !defined USE_C_ALLOCA
# define alloca(x) __builtin_alloca(x)
# undef C_ALLOCA
# define ASTRDUP(X) \
(__extension__ ({ const char *const libiberty_optr = (X); \
const unsigned long libiberty_len = strlen (libiberty_optr) + 1; \
char *const libiberty_nptr = alloca (libiberty_len); \
(char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len); }))
#else
# define alloca(x) C_alloca(x)
# undef USE_C_ALLOCA
# define USE_C_ALLOCA 1
# undef C_ALLOCA
# define C_ALLOCA 1
extern const char *libiberty_optr;
extern char *libiberty_nptr;
extern unsigned long libiberty_len;
# define ASTRDUP(X) \
(libiberty_optr = (X), \
libiberty_len = strlen (libiberty_optr) + 1, \
libiberty_nptr = alloca (libiberty_len), \
(char *) memcpy (libiberty_nptr, libiberty_optr, libiberty_len))
#endif
#ifdef __cplusplus

5
libiberty/ChangeLog
View file

@ -1,3 +1,8 @@
2001-09-17 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* alloca.c (libiberty_optr, libiberty_nptr, libiberty_len):
Define.
2001-09-04 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* asprintf.c: Don't define USE_STDARG. Use VPARAMS, VA_OPEN,

6
libiberty/alloca.c
View file

@ -34,6 +34,12 @@
#include <stdlib.h>
#endif
/* These variables are used by the ASTRDUP implementation that relies
on C_alloca. */
const char *libiberty_optr;
char *libiberty_nptr;
unsigned long libiberty_len;
/* If your stack is a linked list of frames, you have to
provide an "address metric" ADDRESS_FUNCTION macro. */