https://github.com/torvalds/linux
Revision 682cb0cd82d526b5d1e8ceaccda4d9b7795db553 authored by Linus Torvalds on 25 December 2015, 21:15:23 UTC, committed by Linus Torvalds on 25 December 2015, 21:15:23 UTC
Pull sparc fixes from David Miller: 1) Finally make perf stack backtraces stable on sparc, several problems (mostly due to the context in which the user copies from the stack are done) contributed to this. From Rob Gardner. 2) Export ADI capability if the cpu supports it. 3) Hook up userfaultfd system call. 4) When faults happen during user copies we really have to clean up and restore the FPU state fully. Also from Rob Gardner * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: tty/serial: Skip 'NULL' char after console break when sysrq enabled sparc64: fix FP corruption in user copy functions sparc64: Perf should save/restore fault info sparc64: Ensure perf can access user stacks sparc64: Don't set %pil in rtrap_nmi too early sparc64: Add ADI capability to cpu capabilities tty: serial: constify sunhv_ops structs sparc: Hook up userfaultfd system call
Tip revision: 682cb0cd82d526b5d1e8ceaccda4d9b7795db553 authored by Linus Torvalds on 25 December 2015, 21:15:23 UTC
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Tip revision: 682cb0c
Makefile
#
# kbuild file for usr/ - including initramfs image
#
klibcdirs:;
PHONY += klibcdirs
# Bzip2
suffix_$(CONFIG_RD_BZIP2) = .bz2
# Lzma
suffix_$(CONFIG_RD_LZMA) = .lzma
# XZ
suffix_$(CONFIG_RD_XZ) = .xz
# Lzo
suffix_$(CONFIG_RD_LZO) = .lzo
# Lz4
suffix_$(CONFIG_RD_LZ4) = .lz4
# Gzip
suffix_$(CONFIG_RD_GZIP) = .gz
AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/initramfs_data.cpio$(suffix_y)"
# Generate builtin.o based on initramfs_data.o
obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
# initramfs_data.o contains the compressed initramfs_data.cpio image.
# The image is included using .incbin, a dependency which is not
# tracked automatically.
$(obj)/initramfs_data.o: $(obj)/initramfs_data.cpio$(suffix_y) FORCE
#####
# Generate the initramfs cpio archive
hostprogs-y := gen_init_cpio
initramfs := $(CONFIG_SHELL) $(srctree)/scripts/gen_initramfs_list.sh
ramfs-input := $(if $(filter-out "",$(CONFIG_INITRAMFS_SOURCE)), \
$(shell echo $(CONFIG_INITRAMFS_SOURCE)),-d)
ramfs-args := \
$(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
$(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID))
# .initramfs_data.cpio.d is used to identify all files included
# in initramfs and to detect if any files are added/removed.
# Removed files are identified by directory timestamp being updated
# The dependency list is generated by gen_initramfs.sh -l
ifneq ($(wildcard $(obj)/.initramfs_data.cpio.d),)
include $(obj)/.initramfs_data.cpio.d
endif
quiet_cmd_initfs = GEN $@
cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input)
targets := initramfs_data.cpio.gz initramfs_data.cpio.bz2 \
initramfs_data.cpio.lzma initramfs_data.cpio.xz \
initramfs_data.cpio.lzo initramfs_data.cpio.lz4 \
initramfs_data.cpio
# do not try to update files included in initramfs
$(deps_initramfs): ;
$(deps_initramfs): klibcdirs
# We rebuild initramfs_data.cpio if:
# 1) Any included file is newer then initramfs_data.cpio
# 2) There are changes in which files are included (added or deleted)
# 3) If gen_init_cpio are newer than initramfs_data.cpio
# 4) arguments to gen_initramfs.sh changes
$(obj)/initramfs_data.cpio$(suffix_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/.initramfs_data.cpio.d
$(call if_changed,initfs)
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