diff options
Diffstat (limited to 'stdio-common')
| -rw-r--r-- | stdio-common/printf_fp.c | 2 | ||||
| -rw-r--r-- | stdio-common/vfprintf.c | 18 |
2 files changed, 11 insertions, 9 deletions
diff --git a/stdio-common/printf_fp.c b/stdio-common/printf_fp.c index e746101ddf..0f0c68eb88 100644 --- a/stdio-common/printf_fp.c +++ b/stdio-common/printf_fp.c @@ -869,7 +869,7 @@ __printf_fp (FILE *fp, it is possible that we need two more characters in front of all the other output. If the amount of memory we have to allocate is too large use `malloc' instead of `alloca'. */ - buffer_malloced = chars_needed > 5000; + buffer_malloced = ! __libc_use_alloca (chars_needed * 2 * sizeof (wchar_t)); if (buffer_malloced) { wbuffer = (wchar_t *) malloc ((2 + chars_needed) * sizeof (wchar_t)); diff --git a/stdio-common/vfprintf.c b/stdio-common/vfprintf.c index 788290b803..4f9cd9b424 100644 --- a/stdio-common/vfprintf.c +++ b/stdio-common/vfprintf.c @@ -1039,7 +1039,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap) \ /* Allocate dynamically an array which definitely is long \ enough for the wide character version. */ \ - if (len < 8192) \ + if (__libc_use_alloca (len * sizeof (wchar_t))) \ string = (CHAR_T *) alloca (len * sizeof (wchar_t)); \ else if ((string = (CHAR_T *) malloc (len * sizeof (wchar_t))) \ == NULL) \ @@ -1201,7 +1201,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap) if (prec >= 0) \ { \ /* The string `s2' might not be NUL terminated. */ \ - if (prec < 32768) \ + if (__libc_use_alloca (prec)) \ string = (char *) alloca (prec); \ else if ((string = (char *) malloc (prec)) == NULL) \ { \ @@ -1219,7 +1219,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap) { \ assert (__mbsinit (&mbstate)); \ s2 = (const wchar_t *) string; \ - if (len + 1 < 32768) \ + if (__libc_use_alloca (len + 1)) \ string = (char *) alloca (len + 1); \ else if ((string = (char *) malloc (len + 1)) == NULL) \ { \ @@ -1448,7 +1448,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap) { /* We have to use a special buffer. The "32" is just a safe bet for all the output which is not counted in the width. */ - if (width < (int) (32768 / sizeof (CHAR_T))) + if (__libc_use_alloca ((width + 32) * sizeof (CHAR_T))) workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T)) + (width + 32)); else @@ -1473,7 +1473,7 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap) { /* We have to use a special buffer. The "32" is just a safe bet for all the output which is not counted in the width. */ - if (width < (int) (32768 / sizeof (CHAR_T))) + if (__libc_use_alloca ((width + 32) * sizeof (CHAR_T))) workend = ((CHAR_T *) alloca ((width + 32) * sizeof (CHAR_T)) + (width + 32)); else @@ -1516,8 +1516,9 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap) if (prec > width && prec + 32 > (int)(sizeof (work_buffer) / sizeof (work_buffer[0]))) { - if (prec < (int) (32768 / sizeof (CHAR_T))) - workend = alloca (prec + 32) + (prec + 32); + if (__libc_use_alloca ((prec + 32) * sizeof (CHAR_T))) + workend = ((CHAR_T *) alloca ((prec + 32) * sizeof (CHAR_T))) + + (prec + 32); else { workstart = (CHAR_T *) malloc ((prec + 32) * sizeof (CHAR_T)); @@ -1832,7 +1833,8 @@ do_positional: if (MAX (prec, width) + 32 > (int) (sizeof (work_buffer) / sizeof (CHAR_T))) { - if (MAX (prec, width) < (int) (32768 / sizeof (CHAR_T))) + if (__libc_use_alloca ((MAX (prec, width) + 32) + * sizeof (CHAR_T))) workend = ((CHAR_T *) alloca ((MAX (prec, width) + 32) * sizeof (CHAR_T)) + (MAX (prec, width) + 32)); |