@@ -102,7 +102,6 @@ config ARM
select HAVE_KRETPROBES if HAVE_KPROBES
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_NMI
- select HAVE_OPROFILE if HAVE_PERF_EVENTS
select HAVE_OPTPROBES if !THUMB2_KERNEL
select HAVE_PERF_EVENTS
select HAVE_PERF_REGS
@@ -266,8 +266,6 @@ core-y += $(machdirs) $(platdirs)
core- += $(patsubst %,arch/arm/mach-%/, $(machine-))
core- += $(patsubst %,arch/arm/plat-%/, $(plat-))
-drivers-$(CONFIG_OPROFILE) += arch/arm/oprofile/
-
libs-y := arch/arm/lib/ $(libs-y)
# Default target when executing plain make
@@ -21,7 +21,6 @@ CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
# CONFIG_COMPAT_BRK is not set
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_JUMP_LABEL=y
CONFIG_CC_STACKPROTECTOR_REGULAR=y
CONFIG_MODULES=y
@@ -11,7 +11,6 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_PERF_EVENTS is not set
CONFIG_SLAB=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
@@ -5,7 +5,6 @@ CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EXPERT=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
@@ -27,7 +27,6 @@ CONFIG_AEABI=y
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_PM_DEBUG=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@@ -16,7 +16,6 @@ CONFIG_KALLSYMS_ALL=y
# CONFIG_BASE_FULL is not set
CONFIG_EMBEDDED=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
@@ -67,7 +67,6 @@ CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
CONFIG_CPU_IDLE=y
CONFIG_ARM_KIRKWOOD_CPUIDLE=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@@ -5,7 +5,6 @@ CONFIG_EXPERT=y
CONFIG_KALLSYMS_ALL=y
# CONFIG_SLUB_DEBUG is not set
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@@ -4,7 +4,6 @@ CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_LOG_BUF_SHIFT=19
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@@ -13,7 +13,6 @@ CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
CONFIG_SLOB=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
@@ -68,7 +68,6 @@ CONFIG_CRYPTO_AES_ARM=m
CONFIG_CRYPTO_AES_ARM_BS=m
CONFIG_CRYPTO_GHASH_ARM_CE=m
CONFIG_CRYPTO_CHACHA20_NEON=m
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
@@ -5,7 +5,6 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_EXPERT=y
# CONFIG_SLUB_DEBUG is not set
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@@ -13,7 +13,6 @@ CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_SLOB=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_FORCE_LOAD=y
@@ -10,7 +10,6 @@ CONFIG_EMBEDDED=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_KPROBES=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
@@ -18,7 +18,6 @@ CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_VFP=y
CONFIG_NEON=y
-CONFIG_OPROFILE=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
@@ -5,7 +5,6 @@ CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_EXPERT=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=m
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODULE_FORCE_UNLOAD=y
@@ -11,7 +11,6 @@ CONFIG_CPUSETS=y
# CONFIG_NET_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_BLK_DEV_BSG is not set
deleted file mode 100644
@@ -1,14 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_OPROFILE) += oprofile.o
-
-DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
- oprof.o cpu_buffer.o buffer_sync.o \
- event_buffer.o oprofile_files.o \
- oprofilefs.o oprofile_stats.o \
- timer_int.o )
-
-ifeq ($(CONFIG_HW_PERF_EVENTS),y)
-DRIVER_OBJS += $(addprefix ../../../drivers/oprofile/, oprofile_perf.o)
-endif
-
-oprofile-y := $(DRIVER_OBJS) common.o
deleted file mode 100644
@@ -1,132 +0,0 @@
-/**
- * @file common.c
- *
- * @remark Copyright 2004 Oprofile Authors
- * @remark Copyright 2010 ARM Ltd.
- * @remark Read the file COPYING
- *
- * @author Zwane Mwaikambo
- * @author Will Deacon [move to perf]
- */
-
-#include <linux/cpumask.h>
-#include <linux/init.h>
-#include <linux/mutex.h>
-#include <linux/oprofile.h>
-#include <linux/perf_event.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <asm/stacktrace.h>
-#include <linux/uaccess.h>
-
-#include <asm/perf_event.h>
-#include <asm/ptrace.h>
-
-#ifdef CONFIG_HW_PERF_EVENTS
-
-/*
- * OProfile has a curious naming scheme for the ARM PMUs, but they are
- * part of the user ABI so we need to map from the perf PMU name for
- * supported PMUs.
- */
-static struct op_perf_name {
- char *perf_name;
- char *op_name;
-} op_perf_name_map[] = {
- { "armv5_xscale1", "arm/xscale1" },
- { "armv5_xscale2", "arm/xscale2" },
- { "armv6_1136", "arm/armv6" },
- { "armv6_1156", "arm/armv6" },
- { "armv6_1176", "arm/armv6" },
- { "armv6_11mpcore", "arm/mpcore" },
- { "armv7_cortex_a8", "arm/armv7" },
- { "armv7_cortex_a9", "arm/armv7-ca9" },
-};
-
-char *op_name_from_perf_id(void)
-{
- int i;
- struct op_perf_name names;
- const char *perf_name = perf_pmu_name();
-
- for (i = 0; i < ARRAY_SIZE(op_perf_name_map); ++i) {
- names = op_perf_name_map[i];
- if (!strcmp(names.perf_name, perf_name))
- return names.op_name;
- }
-
- return NULL;
-}
-#endif
-
-static int report_trace(struct stackframe *frame, void *d)
-{
- unsigned int *depth = d;
-
- if (*depth) {
- oprofile_add_trace(frame->pc);
- (*depth)--;
- }
-
- return *depth == 0;
-}
-
-/*
- * The registers we're interested in are at the end of the variable
- * length saved register structure. The fp points at the end of this
- * structure so the address of this struct is:
- * (struct frame_tail *)(xxx->fp)-1
- */
-struct frame_tail {
- struct frame_tail *fp;
- unsigned long sp;
- unsigned long lr;
-} __attribute__((packed));
-
-static struct frame_tail* user_backtrace(struct frame_tail *tail)
-{
- struct frame_tail buftail[2];
-
- /* Also check accessibility of one struct frame_tail beyond */
- if (!access_ok(tail, sizeof(buftail)))
- return NULL;
- if (__copy_from_user_inatomic(buftail, tail, sizeof(buftail)))
- return NULL;
-
- oprofile_add_trace(buftail[0].lr);
-
- /* frame pointers should strictly progress back up the stack
- * (towards higher addresses) */
- if (tail + 1 >= buftail[0].fp)
- return NULL;
-
- return buftail[0].fp-1;
-}
-
-static void arm_backtrace(struct pt_regs * const regs, unsigned int depth)
-{
- struct frame_tail *tail = ((struct frame_tail *) regs->ARM_fp) - 1;
-
- if (!user_mode(regs)) {
- struct stackframe frame;
- arm_get_current_stackframe(regs, &frame);
- walk_stackframe(&frame, report_trace, &depth);
- return;
- }
-
- while (depth-- && tail && !((unsigned long) tail & 3))
- tail = user_backtrace(tail);
-}
-
-int __init oprofile_arch_init(struct oprofile_operations *ops)
-{
- /* provide backtrace support also in timer mode: */
- ops->backtrace = arm_backtrace;
-
- return oprofile_perf_init(ops);
-}
-
-void oprofile_arch_exit(void)
-{
- oprofile_perf_exit();
-}
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> --- arch/arm/Kconfig | 1 - arch/arm/Makefile | 2 - arch/arm/configs/bcm2835_defconfig | 1 - arch/arm/configs/cns3420vb_defconfig | 1 - arch/arm/configs/corgi_defconfig | 1 - arch/arm/configs/imx_v4_v5_defconfig | 1 - arch/arm/configs/keystone_defconfig | 1 - arch/arm/configs/multi_v5_defconfig | 1 - arch/arm/configs/mv78xx0_defconfig | 1 - arch/arm/configs/mvebu_v5_defconfig | 1 - arch/arm/configs/omap1_defconfig | 1 - arch/arm/configs/omap2plus_defconfig | 1 - arch/arm/configs/orion5x_defconfig | 1 - arch/arm/configs/pxa_defconfig | 1 - arch/arm/configs/qcom_defconfig | 1 - arch/arm/configs/socfpga_defconfig | 1 - arch/arm/configs/spitz_defconfig | 1 - arch/arm/configs/vexpress_defconfig | 1 - arch/arm/oprofile/Makefile | 14 --- arch/arm/oprofile/common.c | 132 --------------------------- 20 files changed, 165 deletions(-) delete mode 100644 arch/arm/oprofile/Makefile delete mode 100644 arch/arm/oprofile/common.c -- 2.25.0.rc1.19.g042ed3e048af