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authorMartin Habets <errandir_news@mph.eclipse.co.uk>2006-10-17 19:21:48 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-10-17 19:28:53 -0700
commit9550e59c4587f637d9aa34689e32eea460e6f50c (patch)
treebe6c47289c83e81f9b4e5238f7b1b2eaf1bf8fa6 /arch/sparc
parent872ec6484720e7ddfebb8e15c232fa7ca158ef2e (diff)
downloadlinux-linaro-stable-9550e59c4587f637d9aa34689e32eea460e6f50c.tar.gz
[SPARC]: Add sparc profiling support
This patch adds profiling support to the sparc architecture. It is a copy of the sparc64 implementation. Signed-off-by: Martin Habets <errandir_news@mph.eclipse.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/Kconfig7
-rw-r--r--arch/sparc/Makefile2
-rw-r--r--arch/sparc/kernel/time.c2
-rw-r--r--arch/sparc/oprofile/Kconfig17
-rw-r--r--arch/sparc/oprofile/Makefile9
-rw-r--r--arch/sparc/oprofile/init.c23
6 files changed, 60 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 9431e967aa45..2f96610a83e9 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -289,6 +289,13 @@ endmenu
source "fs/Kconfig"
+menu "Instrumentation Support"
+ depends on EXPERIMENTAL
+
+source "arch/sparc/oprofile/Kconfig"
+
+endmenu
+
source "arch/sparc/Kconfig.debug"
source "security/Kconfig"
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index 4cdbb2d59ed0..f33c3817f014 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -30,6 +30,8 @@ HEAD_Y := $(head-y)
core-y += arch/sparc/kernel/ arch/sparc/mm/ arch/sparc/math-emu/
libs-y += arch/sparc/prom/ arch/sparc/lib/
+drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/
+
# Export what is needed by arch/sparc/boot/Makefile
# Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-)
INIT_Y := $(patsubst %/, %/built-in.o, $(init-y))
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 7dcd1a16c6e4..6c7aa51b590f 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -95,6 +95,8 @@ unsigned long profile_pc(struct pt_regs *regs)
return pc;
}
+EXPORT_SYMBOL(profile_pc);
+
__volatile__ unsigned int *master_l10_counter;
__volatile__ unsigned int *master_l10_limit;
diff --git a/arch/sparc/oprofile/Kconfig b/arch/sparc/oprofile/Kconfig
new file mode 100644
index 000000000000..d8a84088471a
--- /dev/null
+++ b/arch/sparc/oprofile/Kconfig
@@ -0,0 +1,17 @@
+config PROFILING
+ bool "Profiling support (EXPERIMENTAL)"
+ help
+ Say Y here to enable the extended profiling support mechanisms used
+ by profilers such as OProfile.
+
+
+config OPROFILE
+ tristate "OProfile system profiling (EXPERIMENTAL)"
+ depends on PROFILING
+ help
+ OProfile is a profiling system capable of profiling the
+ whole system, include the kernel, kernel modules, libraries,
+ and applications.
+
+ If unsure, say N.
+
diff --git a/arch/sparc/oprofile/Makefile b/arch/sparc/oprofile/Makefile
new file mode 100644
index 000000000000..e9feca1ca28b
--- /dev/null
+++ b/arch/sparc/oprofile/Makefile
@@ -0,0 +1,9 @@
+obj-$(CONFIG_OPROFILE) += oprofile.o
+
+DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
+ oprof.o cpu_buffer.o buffer_sync.o \
+ event_buffer.o oprofile_files.o \
+ oprofilefs.o oprofile_stats.o \
+ timer_int.o )
+
+oprofile-y := $(DRIVER_OBJS) init.o
diff --git a/arch/sparc/oprofile/init.c b/arch/sparc/oprofile/init.c
new file mode 100644
index 000000000000..9ab815b95b5a
--- /dev/null
+++ b/arch/sparc/oprofile/init.c
@@ -0,0 +1,23 @@
+/**
+ * @file init.c
+ *
+ * @remark Copyright 2002 OProfile authors
+ * @remark Read the file COPYING
+ *
+ * @author John Levon <levon@movementarian.org>
+ */
+
+#include <linux/kernel.h>
+#include <linux/oprofile.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+
+int __init oprofile_arch_init(struct oprofile_operations * ops)
+{
+ return -ENODEV;
+}
+
+
+void oprofile_arch_exit(void)
+{
+}