From: Viresh K. <vir...@li...> - 2021-01-14 12:07:38
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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 <hc...@in...> Suggested-by: Linus Torvalds <tor...@li...> Signed-off-by: Viresh Kumar <vir...@li...> --- arch/s390/Kconfig | 1 - arch/s390/Makefile | 3 --- arch/s390/configs/debug_defconfig | 1 - arch/s390/configs/defconfig | 1 - arch/s390/oprofile/Makefile | 10 --------- arch/s390/oprofile/init.c | 37 ------------------------------- 6 files changed, 53 deletions(-) delete mode 100644 arch/s390/oprofile/Makefile delete mode 100644 arch/s390/oprofile/init.c diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index c72874f09741..f84444ef3860 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -174,7 +174,6 @@ config S390 select HAVE_MOD_ARCH_SPECIFIC select HAVE_NMI select HAVE_NOP_MCOUNT - select HAVE_OPROFILE select HAVE_PCI select HAVE_PERF_EVENTS select HAVE_PERF_REGS diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 8db267d2a543..e443ed9947bd 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -134,9 +134,6 @@ core-y += arch/s390/ libs-y += arch/s390/lib/ drivers-y += drivers/s390/ -# must be linked after kernel -drivers-$(CONFIG_OPROFILE) += arch/s390/oprofile/ - boot := arch/s390/boot syscalls := arch/s390/kernel/syscalls tools := arch/s390/tools diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig index c4f6ff98a612..8b94347705e5 100644 --- a/arch/s390/configs/debug_defconfig +++ b/arch/s390/configs/debug_defconfig @@ -57,7 +57,6 @@ CONFIG_CMM=m CONFIG_APPLDATA_BASE=y CONFIG_KVM=m CONFIG_S390_UNWIND_SELFTEST=y -CONFIG_OPROFILE=m CONFIG_KPROBES=y CONFIG_JUMP_LABEL=y CONFIG_STATIC_KEYS_SELFTEST=y diff --git a/arch/s390/configs/defconfig b/arch/s390/configs/defconfig index 51135893cffe..9db1232e09f4 100644 --- a/arch/s390/configs/defconfig +++ b/arch/s390/configs/defconfig @@ -55,7 +55,6 @@ CONFIG_CMM=m CONFIG_APPLDATA_BASE=y CONFIG_KVM=m CONFIG_S390_UNWIND_SELFTEST=m -CONFIG_OPROFILE=m CONFIG_KPROBES=y CONFIG_JUMP_LABEL=y # CONFIG_GCC_PLUGINS is not set diff --git a/arch/s390/oprofile/Makefile b/arch/s390/oprofile/Makefile deleted file mode 100644 index 36261f9d360b..000000000000 --- a/arch/s390/oprofile/Makefile +++ /dev/null @@ -1,10 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -obj-$(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 diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c deleted file mode 100644 index 7441857df51b..000000000000 --- a/arch/s390/oprofile/init.c +++ /dev/null @@ -1,37 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * S390 Version - * Copyright IBM Corp. 2002, 2011 - * Author(s): Thomas Spatzier (ts...@de...) - * Author(s): Mahesh Salgaonkar (ma...@li...) - * Author(s): Heinz Graalfs (gr...@li...) - * Author(s): Andreas Krebbel (kr...@li...) - * - * @remark Copyright 2002-2011 OProfile authors - */ - -#include <linux/oprofile.h> -#include <linux/init.h> -#include <asm/processor.h> -#include <asm/unwind.h> - -static void s390_backtrace(struct pt_regs *regs, unsigned int depth) -{ - struct unwind_state state; - - unwind_for_each_frame(&state, current, regs, 0) { - if (depth-- == 0) - break; - oprofile_add_trace(state.ip); - } -} - -int __init oprofile_arch_init(struct oprofile_operations *ops) -{ - ops->backtrace = s390_backtrace; - return 0; -} - -void oprofile_arch_exit(void) -{ -} -- 2.25.0.rc1.19.g042ed3e048af |