[PATCH 2/4] arm64: kdebugfs: create arm64 debugfs directory
From: Mark Langsdorf <hidden>
Date: 2018-05-24 19:09:30
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Create debugfs directory for arm64, like the existing one for x86. Signed-off-by: Mark Langsdorf <redacted> --- arch/arm64/kernel/Makefile | 3 ++- arch/arm64/kernel/kdebugfs.c | 27 +++++++++++++++++++++++++++ 2 files changed, 29 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/kernel/kdebugfs.c
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index bf825f3..a48b298 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile@@ -18,7 +18,8 @@ arm64-obj-y := debug-monitors.o entry.o irq.o fpsimd.o \ hyp-stub.o psci.o cpu_ops.o insn.o \ return_address.o cpuinfo.o cpu_errata.o \ cpufeature.o alternative.o cacheinfo.o \ - smp.o smp_spin_table.o topology.o smccc-call.o + smp.o smp_spin_table.o topology.o smccc-call.o \ + kdebugfs.o extra-$(CONFIG_EFI) := efi-entry.o
diff --git a/arch/arm64/kernel/kdebugfs.c b/arch/arm64/kernel/kdebugfs.c
new file mode 100644
index 0000000..e1e3332
--- /dev/null
+++ b/arch/arm64/kernel/kdebugfs.c@@ -0,0 +1,27 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Architecture specific debugfs files + * + * Copyright (C) 2018 Red Hat, Inc. + */ + +#include <linux/debugfs.h> +#include <linux/export.h> +#include <linux/init.h> + +struct dentry *arch_debugfs_dir; +EXPORT_SYMBOL(arch_debugfs_dir); + +static int __init arch_kdebugfs_init(void) +{ + int error = 0; + + arch_debugfs_dir = debugfs_create_dir("arm64", NULL); + if (IS_ERR(arch_debugfs_dir)) { + arch_debugfs_dir = NULL; + return -ENOMEM; + } + + return error; +} +postcore_initcall(arch_kdebugfs_init);
--
2.9.5