Add support for the tracing infastructure in coreboot.
The compiler is forced to emmit special functions on every entry/exit of the function. Add a compile time option to support it. Function entries will be printed in the console. The CONFIG_TRACE has more documentation. Patch for userspace tools will follow. Change-Id: I2cbeb3f104892b034c8756f86ed05bf71187c3f3 Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Rudolf Marek
Stefan Reinauer
parent
f73535c089
commit
7f0e93060e
|
|
@ -51,6 +51,10 @@ classes-y := ramstage romstage driver smm
|
|||
|
||||
romstage-c-ccopts:=-D__PRE_RAM__
|
||||
romstage-S-ccopts:=-D__PRE_RAM__
|
||||
ifeq ($(CONFIG_TRACE),y)
|
||||
ramstage-c-ccopts:= -finstrument-functions
|
||||
endif
|
||||
|
||||
smm-c-ccopts:=-D__SMM__
|
||||
smm-S-ccopts:=-D__SMM__
|
||||
|
||||
|
|
|
|||
|
|
@ -845,6 +845,15 @@ config LLSHELL
|
|||
Put llshell() in your (romstage) code to start the shell.
|
||||
See src/arch/x86/llshell/llshell.inc for details.
|
||||
|
||||
config TRACE
|
||||
bool "Trace function calls"
|
||||
default n
|
||||
help
|
||||
If enabled, every function will print information to console once
|
||||
the function is entered. The syntax is ~0xaaaabbbb(0xccccdddd)
|
||||
the 0xaaaabbbb is the actual function and 0xccccdddd is EIP
|
||||
of calling function. Please note some printk releated functions
|
||||
are omitted from trace to have good looking console dumps.
|
||||
endmenu
|
||||
|
||||
config LIFT_BSP_APIC_ID
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@
|
|||
#include <smp/spinlock.h>
|
||||
#include <console/vtxprintf.h>
|
||||
#include <console/console.h>
|
||||
#include <trace.h>
|
||||
|
||||
int console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
|
||||
int default_console_loglevel = CONFIG_DEFAULT_CONSOLE_LOGLEVEL;
|
||||
|
|
@ -23,6 +24,7 @@ int do_printk(int msg_level, const char *fmt, ...)
|
|||
return 0;
|
||||
}
|
||||
|
||||
DISABLE_TRACE;
|
||||
spin_lock(&console_lock);
|
||||
|
||||
va_start(args, fmt);
|
||||
|
|
@ -32,6 +34,7 @@ int do_printk(int msg_level, const char *fmt, ...)
|
|||
console_tx_flush();
|
||||
|
||||
spin_unlock(&console_lock);
|
||||
ENABLE_TRACE;
|
||||
|
||||
return i;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -22,6 +22,7 @@
|
|||
#include <string.h>
|
||||
#include <smp/spinlock.h>
|
||||
#include <console/vtxprintf.h>
|
||||
#include <trace.h>
|
||||
|
||||
DECLARE_SPIN_LOCK(vsprintf_lock)
|
||||
|
||||
|
|
@ -37,6 +38,7 @@ static int vsprintf(char *buf, const char *fmt, va_list args)
|
|||
{
|
||||
int i;
|
||||
|
||||
DISABLE_TRACE;
|
||||
spin_lock(&vsprintf_lock);
|
||||
|
||||
str_buf = buf;
|
||||
|
|
@ -44,6 +46,7 @@ static int vsprintf(char *buf, const char *fmt, va_list args)
|
|||
*str_buf = '\0';
|
||||
|
||||
spin_unlock(&vsprintf_lock);
|
||||
ENABLE_TRACE;
|
||||
|
||||
return i;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,54 @@
|
|||
/*
|
||||
* This file is part of the coreboot project.
|
||||
*
|
||||
* Copyright (C) 2011 Rudolf Marek <r.marek@assembler.cz>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef __TRACE_H
|
||||
#define __TRACE_H
|
||||
|
||||
|
||||
#ifdef __PRE_RAM__
|
||||
|
||||
#define DISABLE_TRACE
|
||||
#define ENABLE_TRACE
|
||||
#define DISABLE_TRACE_ON_FUNCTION
|
||||
|
||||
#else /* !__PRE_RAM__ */
|
||||
|
||||
#if CONFIG_TRACE
|
||||
|
||||
void __cyg_profile_func_enter( void *, void * )
|
||||
__attribute__ ((no_instrument_function));
|
||||
|
||||
void __cyg_profile_func_exit( void *, void * )
|
||||
__attribute__ ((no_instrument_function));
|
||||
|
||||
extern volatile int trace_dis;
|
||||
|
||||
#define DISABLE_TRACE do { trace_dis = 1; } while (0);
|
||||
#define ENABLE_TRACE do { trace_dis = 0; } while (0);
|
||||
#define DISABLE_TRACE_ON_FUNCTION __attribute__ ((no_instrument_function));
|
||||
|
||||
#else /* !CONFIG_TRACE */
|
||||
|
||||
#define DISABLE_TRACE
|
||||
#define ENABLE_TRACE
|
||||
#define DISABLE_TRACE_ON_FUNCTION
|
||||
|
||||
#endif
|
||||
#endif
|
||||
#endif
|
||||
|
|
@ -33,6 +33,7 @@ ramstage-$(CONFIG_CONSOLE_SERIAL8250) += uart8250.c
|
|||
ramstage-$(CONFIG_CONSOLE_SERIAL8250MEM) += uart8250mem.c
|
||||
ramstage-$(CONFIG_USBDEBUG) += usbdebug.c
|
||||
ramstage-$(CONFIG_BOOTSPLASH) += jpeg.c
|
||||
ramstage-$(CONFIG_TRACE) += trace.c
|
||||
|
||||
driver-$(CONFIG_CONSOLE_NE2K) += ne2k.c
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,39 @@
|
|||
/*
|
||||
* This file is part of the coreboot project.
|
||||
*
|
||||
* Copyright (C) 2011 Rudolf Marek <r.marek@assembler.cz>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; version 2 of the License.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <types.h>
|
||||
#include <console/console.h>
|
||||
#include <trace.h>
|
||||
|
||||
int volatile trace_dis = 0;
|
||||
|
||||
void __cyg_profile_func_enter( void *func, void *callsite)
|
||||
{
|
||||
|
||||
if (trace_dis)
|
||||
return;
|
||||
|
||||
DISABLE_TRACE
|
||||
printk(BIOS_INFO, "~0x%08x(0x%08x)\n", (uint32_t) func, (uint32_t) callsite);
|
||||
ENABLE_TRACE
|
||||
}
|
||||
|
||||
void __cyg_profile_func_exit( void *func, void *callsite )
|
||||
{
|
||||
}
|
||||
|
|
@ -21,6 +21,8 @@
|
|||
#include <arch/io.h>
|
||||
#include <uart8250.h>
|
||||
#include <pc80/mc146818rtc.h>
|
||||
#include <trace.h>
|
||||
|
||||
#if CONFIG_USE_OPTION_TABLE
|
||||
#include "option_table.h"
|
||||
#endif
|
||||
|
|
@ -69,6 +71,7 @@ unsigned char uart8250_rx_byte(unsigned base_port)
|
|||
|
||||
void uart8250_init(unsigned base_port, unsigned divisor)
|
||||
{
|
||||
DISABLE_TRACE;
|
||||
/* Disable interrupts */
|
||||
outb(0x0, base_port + UART_IER);
|
||||
/* Enable FIFOs */
|
||||
|
|
@ -86,6 +89,7 @@ void uart8250_init(unsigned base_port, unsigned divisor)
|
|||
|
||||
/* Set to 3 for 8N1 */
|
||||
outb(CONFIG_TTYS0_LCS, base_port + UART_LCR);
|
||||
ENABLE_TRACE;
|
||||
}
|
||||
|
||||
void uart_init(void)
|
||||
|
|
|
|||
Loading…
Reference in New Issue