From 7f0e93060e720149bb59023d608a67cfc21542b1 Mon Sep 17 00:00:00 2001 From: Rudolf Marek Date: Fri, 2 Sep 2011 23:23:41 +0200 Subject: 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 Reviewed-on: http://review.coreboot.org/178 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/console/printk.c | 3 +++ src/console/vsprintf.c | 3 +++ 2 files changed, 6 insertions(+) (limited to 'src/console') 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 #include #include +#include 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 #include #include +#include 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; } -- cgit v1.2.3