diff --git a/features/minimal-printf/mbed_printf_armlink_overrides.c b/features/minimal-printf/mbed_printf_armlink_overrides.c new file mode 100644 index 0000000000..eda0ad453d --- /dev/null +++ b/features/minimal-printf/mbed_printf_armlink_overrides.c @@ -0,0 +1,371 @@ +/* mbed Microcontroller Library + * Copyright (c) 2019 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/** + * Arm Compiler uses dedicated functions for each format specifier used by + * [sn/v/vsn]printf. When minimal-printf overwrites [sn/v/vsn]printf the + * linker is unable to remove unused functions related to printf. + * + * The following stubs replace the built-in functions and helps the linker + * to resolve dependencies and correctly remove unused functions. + */ + +#if defined(TOOLCHAIN_ARM) + +#include "mbed_printf_implementation.h" + +#include +#include +#include + +/** + * Arm Compiler uses __2[s/sn/vsn]printf internally. + */ +int $Sub$$__2printf(const char *format, ...) +{ + va_list arguments; + va_start(arguments, format); + int result = mbed_minimal_formatted_string(NULL, LONG_MAX, format, arguments); + va_end(arguments); + + return result; +} + +int $Sub$$__2sprintf(char* buffer, const char* format, ...) +{ + va_list arguments; + va_start(arguments, format); + int result = mbed_minimal_formatted_string(buffer, LONG_MAX, format, arguments); + va_end(arguments); + + return result; +} + +int $Sub$$__2snprintf(char* buffer, size_t length, const char* format, ...) +{ + va_list arguments; + va_start(arguments, format); + int result = mbed_minimal_formatted_string(buffer, length, format, arguments); + va_end(arguments); + + return result; +} + +int $Sub$$__2vprintf(char* buffer, const char* format, ...) +{ + va_list arguments; + va_start(arguments, format); + int result = mbed_minimal_formatted_string(buffer, LONG_MAX, format, arguments); + va_end(arguments); + + return result; +} + +int $Sub$$__2vsnprintf(char* buffer, size_t length, const char* format, va_list arguments) +{ + return mbed_minimal_formatted_string(buffer, length, format, arguments); +} + +/** + * Replace the built-in functions which the linker is unable to prune with dummy stubs + * that take up less space. + */ +int $Sub$$_printf_a(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_c(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_char(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_char_common(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_char_file_locked(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_charcount(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_cs_common(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_d(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_dec(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_e(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_f(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_fp_dec(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_fp_dec_real(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_fp_hex(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_fp_hex_real(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_fp_infnan(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_g(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_hex_int_ll_ptr(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_hex_ptr(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_i(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_int_common(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_int_dec(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_int_hex(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_int_oct(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_l(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_lc(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_lcs_common(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_ll(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_ll_hex(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_ll_oct(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_lld(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_lli(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_llo(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_llu(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_llx(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_longlong_dec(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_longlong_hex(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_longlong_oct(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_ls(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_n(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_o(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_oct_int_ll(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_p(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_pad(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_percent(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_percent_end(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_s(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_str(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_string(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_truncate(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_truncate_signed(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_truncate_unsigned(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_u(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_wchar(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_wctomb(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_wstring(const char *format, ...) +{ + return 0; +} + +int $Sub$$_printf_x(const char *format, ...) +{ + return 0; +} + +#endif