diff options
| -rw-r--r-- | Makefile.inc | 4 | ||||
| -rw-r--r-- | src/Kconfig | 9 | ||||
| -rw-r--r-- | src/console/printk.c | 3 | ||||
| -rw-r--r-- | src/console/vsprintf.c | 3 | ||||
| -rw-r--r-- | src/include/trace.h | 54 | ||||
| -rw-r--r-- | src/lib/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/lib/trace.c | 39 | ||||
| -rw-r--r-- | src/lib/uart8250.c | 4 |
8 files changed, 117 insertions, 0 deletions
diff --git a/Makefile.inc b/Makefile.inc index 37e4fb696d..167ab5bcc8 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -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__ diff --git a/src/Kconfig b/src/Kconfig index f96c903e69..e9ceed5e10 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -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 diff --git a/src/console/printk.c b/src/console/printk.c index 488d4e5ca3..75490881f6 100644 --- a/src/console/printk.c +++ b/src/console/printk.c @@ -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; } diff --git a/src/console/vsprintf.c b/src/console/vsprintf.c index 4a745233b9..435401b7ef 100644 --- a/src/console/vsprintf.c +++ b/src/console/vsprintf.c @@ -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; } diff --git a/src/include/trace.h b/src/include/trace.h new file mode 100644 index 0000000000..ff5b6c2531 --- /dev/null +++ b/src/include/trace.h @@ -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 diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 54935cabad..b207ffed66 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -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 diff --git a/src/lib/trace.c b/src/lib/trace.c new file mode 100644 index 0000000000..8736c82b65 --- /dev/null +++ b/src/lib/trace.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 ) +{ +} diff --git a/src/lib/uart8250.c b/src/lib/uart8250.c index e7ddd0bfd5..b2246713ca 100644 --- a/src/lib/uart8250.c +++ b/src/lib/uart8250.c @@ -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) |