diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2013-01-22 17:02:38 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-02-15 23:16:00 +0530 |
| commit | 769bc1fd7b8591a312d4c5c8834bc6510272938e (patch) | |
| tree | 72ce15497ddabc58e492a0f489d1a6a08639f06b /arch | |
| parent | 01b812bcce4920d9587fab7a964493d368be1522 (diff) | |
ARC: OProfile support
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Robert Richter <rric@kernel.org>
Cc: oprofile-list@lists.sf.net
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arc/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arc/Makefile | 2 | ||||
| -rw-r--r-- | arch/arc/oprofile/Makefile | 9 | ||||
| -rw-r--r-- | arch/arc/oprofile/common.c | 26 |
4 files changed, 38 insertions, 0 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index 409b9378032..405ea7a756b 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -25,6 +25,7 @@ config ARC select HAVE_ARCH_TRACEHOOK select HAVE_GENERIC_HARDIRQS select HAVE_MEMBLOCK + select HAVE_OPROFILE select IRQ_DOMAIN select MODULES_USE_ELF_RELA select NO_BOOTMEM diff --git a/arch/arc/Makefile b/arch/arc/Makefile index 5c98fc19d99..642c0406d60 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -100,6 +100,8 @@ ifneq ($(platform-y),) core-y += arch/arc/plat-$(PLATFORM)/ endif +drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/ + libs-y += arch/arc/lib/ $(LIBGCC) #default target for make without any arguements. diff --git a/arch/arc/oprofile/Makefile b/arch/arc/oprofile/Makefile new file mode 100644 index 00000000000..ce417a6e70b --- /dev/null +++ b/arch/arc/oprofile/Makefile @@ -0,0 +1,9 @@ +obj-$(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) common.o diff --git a/arch/arc/oprofile/common.c b/arch/arc/oprofile/common.c new file mode 100644 index 00000000000..c80fcad4a5a --- /dev/null +++ b/arch/arc/oprofile/common.c @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Based on orig code from @author John Levon <levon@movementarian.org> + */ + +#include <linux/oprofile.h> +#include <linux/perf_event.h> + +int __init oprofile_arch_init(struct oprofile_operations *ops) +{ + /* + * A failure here, forces oprofile core to switch to Timer based PC + * sampling, which will happen if say perf is not enabled/available + */ + return oprofile_perf_init(ops); +} + +void oprofile_arch_exit(void) +{ + oprofile_perf_exit(); +} |