mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-15 09:04:17 +00:00
b79af93445
This patch implements a "tf_printf" which supports only the commonly used format specifiers in Trusted Firmware, which uses a lot less stack space than the stdlib printf function. Fixes ARM-software/tf-issues#116 Change-Id: I7dfa1944f4c1e634b3e2d571f49afe02d109a351
96 lines
3 KiB
C
96 lines
3 KiB
C
/*
|
|
* Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* Redistributions of source code must retain the above copyright notice, this
|
|
* list of conditions and the following disclaimer.
|
|
*
|
|
* Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* Neither the name of ARM nor the names of its contributors may be used
|
|
* to endorse or promote products derived from this software without specific
|
|
* prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
#include <console.h>
|
|
#include <debug.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
|
|
/******************************************************************
|
|
* This function is invoked from assembler error handling routines and
|
|
* prints out the string and the value in 64 bit hex format. These
|
|
* are passed to the function as input parameters.
|
|
********************************************************************/
|
|
void print_string_value(char *s, unsigned long *mem)
|
|
{
|
|
unsigned char i, temp;
|
|
unsigned long val;
|
|
|
|
while (*s) {
|
|
i = 16;
|
|
while (*s)
|
|
console_putc(*s++);
|
|
|
|
s++;
|
|
|
|
console_putc('\t');
|
|
console_putc(':');
|
|
console_putc('0');
|
|
console_putc('x');
|
|
|
|
val = *mem++;
|
|
|
|
while (i--) {
|
|
temp = (val >> (i << 2)) & 0xf;
|
|
if (temp < 0xa)
|
|
console_putc('0' + temp);
|
|
else
|
|
console_putc('A' + (temp - 0xa));
|
|
}
|
|
console_putc('\n');
|
|
}
|
|
}
|
|
|
|
/***********************************************************
|
|
* The common implementation of do_panic for all BL stages
|
|
***********************************************************/
|
|
|
|
#if DEBUG
|
|
void __dead2 do_panic(const char *file, int line)
|
|
{
|
|
tf_printf("PANIC in file: %s line: %d\n", file, line);
|
|
while (1)
|
|
;
|
|
}
|
|
#else
|
|
void __dead2 do_panic(void)
|
|
{
|
|
unsigned long pc_reg;
|
|
__asm__ volatile("mov %0, x30\n"
|
|
: "=r" (pc_reg) : );
|
|
|
|
/* x30 reports the next eligible instruction whereas we want the
|
|
* place where panic() is invoked. Hence decrement by 4.
|
|
*/
|
|
tf_printf("PANIC in PC location 0x%016X\n", pc_reg - 0x4);
|
|
while (1)
|
|
;
|
|
|
|
}
|
|
#endif
|