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arch: arc: Remove CONFIG_OPROFILE support

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The "oprofile" user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.

Remove the old oprofile's architecture specific support.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Viresh Kumar 2021-01-14 17:05:16 +05:30
parent d50b870b27
commit 993b832fda
4 changed files with 0 additions and 36 deletions
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1
arch/arc/Kconfig
View File

@ -37,7 +37,6 @@ config ARC
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_OPROFILE
select HAVE_PERF_EVENTS
select HANDLE_DOMAIN_IRQ
select IRQ_DOMAIN

2
arch/arc/Makefile
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@ -96,8 +96,6 @@ core-$(CONFIG_ARC_PLAT_TB10X) += arch/arc/plat-tb10x/
core-$(CONFIG_ARC_PLAT_AXS10X) += arch/arc/plat-axs10x/
core-$(CONFIG_ARC_SOC_HSDK) += arch/arc/plat-hsdk/
drivers-$(CONFIG_OPROFILE) += arch/arc/oprofile/
libs-y += arch/arc/lib/ $(LIBGCC)
boot := arch/arc/boot

10
arch/arc/oprofile/Makefile
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@ -1,10 +0,0 @@
# SPDX-License-Identifier: GPL-2.0
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

23
arch/arc/oprofile/common.c
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@ -1,23 +0,0 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* 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();
}