Switch _PRINTF_SMALL_ULTOA_ to __IO_SMALL_ULTOA

Match other printf/scanf options.

Signed-off-by: Keith Packard <[email protected]>

Author: keith-packard

CMakeLists.txt

@@ -219,8 +219,8 @@ endif()
 
 option(__IO_FLOAT "Support floating point in printf/scanf by default" ON)
 
-if(NOT DEFINED _PRINTF_SMALL_ULTOA)
-  option(_PRINTF_SMALL_ULTOA "Avoid soft divide in printf" ON)
+if(NOT DEFINED __IO_SMALL_ULTOA)
+  option(__IO_SMALL_ULTOA "Avoid soft divide in printf" ON)
 endif()
 
 if(NOT DEFINED __IO_PERCENT_N)

meson.build

@@ -1408,7 +1408,7 @@ if tinystdio
   conf_data.set('__IO_DEFAULT_MINIMAL',
                 format_default == 'minimal',
                 description: 'The default printf functions is the minimal variant')
-  conf_data.set('_PRINTF_SMALL_ULTOA',
+  conf_data.set('__IO_SMALL_ULTOA',
                 printf_small_ultoa,
                 description: 'avoid software division in decimal conversion')
   conf_data.set('__IO_PERCENT_N',

newlib/libc/tinystdio/ultoa_invert.c

@@ -26,7 +26,7 @@
   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   POSSIBILITY OF SUCH DAMAGE. */
 
-#if PRINTF_LEVEL < PRINTF_DBL && defined(_PRINTF_SMALL_ULTOA)
+#if PRINTF_LEVEL < PRINTF_DBL && defined(__IO_SMALL_ULTOA)
 
 /*
  * Enable fancy divmod for targets where we don't expect either

picolibc.h.in

@@ -77,7 +77,7 @@
 
 #cmakedefine __IO_FLOAT_EXACT
 
-#cmakedefine _PRINTF_SMALL_ULTOA
+#cmakedefine __IO_SMALL_ULTOA
 
 #cmakedefine __IO_PERCENT_N
 

zephyr/zephyr.cmake

@@ -78,7 +78,7 @@ if(CONFIG_PICOLIBC_USE_MODULE)
   picolibc_option_false("__IO_PERCENT_B" CONFIG_PICOLIBC_IO_PERCENT_B)
   picolibc_option_true("__IO_POS_ARGS" CONFIG_PICOLIBC_IO_POS_ARGS)
   picolibc_option_true("__IO_LONG_DOUBLE" CONFIG_PICOLIBC_IO_LONG_DOUBLE)
-  picolibc_option_true("_PRINTF_SMALL_ULTOA" CONFIG_PICOLIBC_IO_SMALL_ULTOA)
+  picolibc_option_true("__IO_SMALL_ULTOA" CONFIG_PICOLIBC_IO_SMALL_ULTOA)
   picolibc_option_true("__IO_DEFAULT_DOUBLE" CONFIG_PICOLIBC_IO_FLOAT)
   picolibc_option_val("__IO_DEFAULT_FLOAT" 0)
   picolibc_option_true("__IO_DEFAULT_LONG_LONG" CONFIG_PICOLIBC_IO_LONG_LONG)