From c7bf2e99cafbd8970f81c38d6f32842cc7846421 Mon Sep 17 00:00:00 2001 From: Florian Weimer Date: Mon, 19 Dec 2022 18:56:54 +0100 Subject: stdio-common: Add __printf_function_invoke And __wprintf_function_invoke. These functions will be used to to call registered printf specifier callbacks on printf buffers after vfprintf and vfwprintf have been converted to buffers. The new implementation avoids alloca/variable length arrays. Reviewed-by: Adhemerval Zanella --- include/printf.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/printf.h b/include/printf.h index 78accaab6d..8f064149d3 100644 --- a/include/printf.h +++ b/include/printf.h @@ -41,6 +41,16 @@ union printf_arg void *pa_user; }; +/* Invoke a registered printf callback. Called from vfprintf and vfwprintf. */ +int __printf_function_invoke (void *, printf_function callback, + union printf_arg *args_value, + size_t ndata_args, + struct printf_info *info) attribute_hidden; +int __wprintf_function_invoke (void *, printf_function callback, + union printf_arg *args_value, + size_t ndata_args, + struct printf_info *info) attribute_hidden; + #include /* Now define the internal interfaces. */ -- cgit v1.2.3-70-g09d2