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Add an option to disable support for long long formats in lib_vsprintf. From Alan Carvalho de Assis

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This commit is contained in:
Gregory Nutt
2015-05-30 10:00:54 -06:00
parent 5142a1a1db
commit fce87336a4
291 changed files with 305 additions and 3 deletions
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libc/Kconfig
+13
View File
@@ -48,6 +48,19 @@ config LIBC_FLOATINGPOINT
By default, floating point
support in printf, sscanf, etc. is disabled.
config LIBC_LONG_LONG
bool "Enable long long support in printf"
default y if !DEFAULT_SMALL
default n if DEFAULT_SMALL
---help---
Enables support for long long formats in printf, sscanf, etc. is
enabled. This is enabled by default but if you are trying to
reduce the FLASH footprint, then disabling this feature is one
option. The FLASH saves comes not from disabling the long long
formats, but rather from omitting the large long long arithmetic
libraries that will be drawn into the build if long long support
is enabled.
config LIBC_IOCTL_VARIADIC
bool "Enable variadic ioctl()"
default n
libc/stdio/lib_libvsprintf.c
+3 -3
View File
@@ -182,7 +182,7 @@ static int getlusize(uint8_t fmt, FAR uint8_t flags, unsigned long ln);
/* Unsigned long long int to ASCII conversions */
#ifdef CONFIG_HAVE_LONG_LONG
#if defined(CONFIG_HAVE_LONG_LONG) && defined(CONFIG_LIBC_LONG_LONG)
static void llutodec(FAR struct lib_outstream_s *obj, unsigned long long lln);
static void llutohex(FAR struct lib_outstream_s *obj, unsigned long long lln, uint8_t a);
static void llutooct(FAR struct lib_outstream_s *obj, unsigned long long lln);
@@ -805,7 +805,7 @@ static int getlusize(uint8_t fmt, uint8_t flags, unsigned long ln)
#endif /* CONFIG_NOPRINTF_FIELDWIDTH */
#endif /* CONFIG_LONG_IS_NOT_INT */
#ifdef CONFIG_HAVE_LONG_LONG
#if defined(CONFIG_HAVE_LONG_LONG) && defined(CONFIG_LIBC_LONG_LONG)
/****************************************************************************
* Name: llutodec
****************************************************************************/
@@ -1426,7 +1426,7 @@ int lib_vsprintf(FAR struct lib_outstream_s *obj, FAR const char *src, va_list a
if (strchr("diuxXpob", FMT_CHAR))
{
#ifdef CONFIG_HAVE_LONG_LONG
#if defined(CONFIG_HAVE_LONG_LONG) && defined(CONFIG_LIBC_LONG_LONG)
if (IS_LONGLONGPRECISION(flags) && FMT_CHAR != 'p')
{
long long lln;