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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2021-01-14 14:35:29 +0300 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2021-01-29 07:35:51 +0300 |
| commit | a848bf1d9ef14fa45b65f402d7d439626aad4877 (patch) | |
| tree | 477dcf16d9a89fa6cbd4453222fda4ee9213dfef /arch/xtensa/oprofile | |
| parent | a6a0683b71050d544febb08358f88f55aade47ce (diff) | |
| download | linux-a848bf1d9ef14fa45b65f402d7d439626aad4877.tar.xz | |
arch: xtensa: Remove CONFIG_OPROFILE support
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: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/xtensa/oprofile')
| -rw-r--r-- | arch/xtensa/oprofile/Makefile | 10 | ||||
| -rw-r--r-- | arch/xtensa/oprofile/backtrace.c | 27 | ||||
| -rw-r--r-- | arch/xtensa/oprofile/init.c | 26 |
3 files changed, 0 insertions, 63 deletions
diff --git a/arch/xtensa/oprofile/Makefile b/arch/xtensa/oprofile/Makefile deleted file mode 100644 index f559b9ffbb3f..000000000000 --- a/arch/xtensa/oprofile/Makefile +++ /dev/null @@ -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) init.o backtrace.o diff --git a/arch/xtensa/oprofile/backtrace.c b/arch/xtensa/oprofile/backtrace.c deleted file mode 100644 index 8f952034e161..000000000000 --- a/arch/xtensa/oprofile/backtrace.c +++ /dev/null @@ -1,27 +0,0 @@ -/** - * @file backtrace.c - * - * @remark Copyright 2008 Tensilica Inc. - * Copyright (C) 2015 Cadence Design Systems Inc. - * @remark Read the file COPYING - * - */ - -#include <linux/oprofile.h> -#include <asm/ptrace.h> -#include <asm/stacktrace.h> - -static int xtensa_backtrace_cb(struct stackframe *frame, void *data) -{ - oprofile_add_trace(frame->pc); - return 0; -} - -void xtensa_backtrace(struct pt_regs * const regs, unsigned int depth) -{ - if (user_mode(regs)) - xtensa_backtrace_user(regs, depth, xtensa_backtrace_cb, NULL); - else - xtensa_backtrace_kernel(regs, depth, xtensa_backtrace_cb, - xtensa_backtrace_cb, NULL); -} diff --git a/arch/xtensa/oprofile/init.c b/arch/xtensa/oprofile/init.c deleted file mode 100644 index a67eea379766..000000000000 --- a/arch/xtensa/oprofile/init.c +++ /dev/null @@ -1,26 +0,0 @@ -/** - * @file init.c - * - * @remark Copyright 2008 Tensilica Inc. - * @remark Read the file COPYING - * - */ - -#include <linux/kernel.h> -#include <linux/oprofile.h> -#include <linux/errno.h> -#include <linux/init.h> - - -extern void xtensa_backtrace(struct pt_regs *const regs, unsigned int depth); - -int __init oprofile_arch_init(struct oprofile_operations *ops) -{ - ops->backtrace = xtensa_backtrace; - return -ENODEV; -} - - -void oprofile_arch_exit(void) -{ -} |