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__
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
#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;
return 0;
}
+ DISABLE_TRACE;
spin_lock(&console_lock);
va_start(args, fmt);
console_tx_flush();
spin_unlock(&console_lock);
+ ENABLE_TRACE;
return i;
}
#include <string.h>
#include <smp/spinlock.h>
#include <console/vtxprintf.h>
+#include <trace.h>
DECLARE_SPIN_LOCK(vsprintf_lock)
{
int i;
+ DISABLE_TRACE;
spin_lock(&vsprintf_lock);
str_buf = buf;
*str_buf = '\0';
spin_unlock(&vsprintf_lock);
+ ENABLE_TRACE;
return i;
}
--- /dev/null
+/*
+ * 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
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
--- /dev/null
+/*
+ * 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 )
+{
+}
#include <arch/io.h>
#include <uart8250.h>
#include <pc80/mc146818rtc.h>
+#include <trace.h>
+
#if CONFIG_USE_OPTION_TABLE
#include "option_table.h"
#endif
void uart8250_init(unsigned base_port, unsigned divisor)
{
+ DISABLE_TRACE;
/* Disable interrupts */
outb(0x0, base_port + UART_IER);
/* Enable FIFOs */
/* Set to 3 for 8N1 */
outb(CONFIG_TTYS0_LCS, base_port + UART_LCR);
+ ENABLE_TRACE;
}
void uart_init(void)