diff options
Diffstat (limited to 'common/tf_printf.c')
| -rw-r--r-- | common/tf_printf.c | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/common/tf_printf.c b/common/tf_printf.c deleted file mode 100644 index ecf058ca..00000000 --- a/common/tf_printf.c +++ /dev/null @@ -1,193 +0,0 @@ -/* - * Copyright (c) 2014-2017, ARM Limited and Contributors. All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ -#include <arch.h> -#include <arch_helpers.h> -#include <assert.h> -#include <debug.h> -#include <limits.h> -#include <stdarg.h> -#include <stdint.h> - -/*********************************************************** - * The tf_printf implementation for all BL stages - ***********************************************************/ - -#define get_num_va_args(_args, _lcount) \ - (((_lcount) > 1) ? va_arg(_args, long long int) : \ - ((_lcount) ? va_arg(_args, long int) : va_arg(_args, int))) - -#define get_unum_va_args(_args, _lcount) \ - (((_lcount) > 1) ? va_arg(_args, unsigned long long int) : \ - ((_lcount) ? va_arg(_args, unsigned long int) : va_arg(_args, unsigned int))) - -int tf_string_print(const char *str) -{ - int count = 0; - - assert(str); - - while (*str) { - putchar(*str++); - count++; - } - - return count; -} - -static int unsigned_num_print(unsigned long long int unum, unsigned int radix, - char padc, int padn) -{ - /* Just need enough space to store 64 bit decimal integer */ - unsigned char num_buf[20]; - int i = 0, rem, count = 0; - - do { - rem = unum % radix; - if (rem < 0xa) - num_buf[i++] = '0' + rem; - else - num_buf[i++] = 'a' + (rem - 0xa); - } while (unum /= radix); - - if (padn > 0) { - while (i < padn--) { - putchar(padc); - count++; - } - } - - while (--i >= 0) { - putchar(num_buf[i]); - count++; - } - - return count; -} - -/******************************************************************* - * Reduced format print for Trusted firmware. - * The following type specifiers are supported by this print - * %x - hexadecimal format - * %s - string format - * %d or %i - signed decimal format - * %u - unsigned decimal format - * %p - pointer format - * - * The following length specifiers are supported by this print - * %l - long int (64-bit on AArch64) - * %ll - long long int (64-bit on AArch64) - * %z - size_t sized integer formats (64 bit on AArch64) - * - * The following padding specifiers are supported by this print - * %0NN - Left-pad the number with 0s (NN is a decimal number) - * - * The print exits on all other formats specifiers other than valid - * combinations of the above specifiers. - *******************************************************************/ -int tf_vprintf(const char *fmt, va_list args) -{ - int l_count; - long long int num; - unsigned long long int unum; - char *str; - char padc = 0; /* Padding character */ - int padn; /* Number of characters to pad */ - int count = 0; /* Number of printed characters */ - - while (*fmt) { - l_count = 0; - padn = 0; - - if (*fmt == '%') { - fmt++; - /* Check the format specifier */ -loop: - switch (*fmt) { - case 'i': /* Fall through to next one */ - case 'd': - num = get_num_va_args(args, l_count); - if (num < 0) { - putchar('-'); - unum = (unsigned long long int)-num; - padn--; - } else - unum = (unsigned long long int)num; - - count += unsigned_num_print(unum, 10, - padc, padn); - break; - case 's': - str = va_arg(args, char *); - count += tf_string_print(str); - break; - case 'p': - unum = (uintptr_t)va_arg(args, void *); - if (unum) { - count += tf_string_print("0x"); - padn -= 2; - } - - count += unsigned_num_print(unum, 16, - padc, padn); - break; - case 'x': - unum = get_unum_va_args(args, l_count); - count += unsigned_num_print(unum, 16, - padc, padn); - break; - case 'z': - if (sizeof(size_t) == 8) - l_count = 2; - - fmt++; - goto loop; - case 'l': - l_count++; - fmt++; - goto loop; - case 'u': - unum = get_unum_va_args(args, l_count); - count += unsigned_num_print(unum, 10, - padc, padn); - break; - case '0': - padc = '0'; - padn = 0; - fmt++; - - while (1) { - char ch = *fmt; - if (ch < '0' || ch > '9') { - goto loop; - } - padn = (padn * 10) + (ch - '0'); - fmt++; - } - default: - /* Exit on any other format specifier */ - return -1; - } - fmt++; - continue; - } - putchar(*fmt++); - count++; - } - - return count; -} - -int tf_printf(const char *fmt, ...) -{ - int count; - va_list va; - - va_start(va, fmt); - count = tf_vprintf(fmt, va); - va_end(va); - - return count; -} |