01 Dec, 2020
1 commit
-
Currently, '--orphan-handling=warn' is spread out across four different
architectures in their respective Makefiles, which makes it a little
unruly to deal with in case it needs to be disabled for a specific
linker version (in this case, ld.lld 10.0.1).To make it easier to control this, hoist this warning into Kconfig and
the main Makefile so that disabling it is simpler, as the warning will
only be enabled in a couple places (main Makefile and a couple of
compressed boot folders that blow away LDFLAGS_vmlinx) and making it
conditional is easier due to Kconfig syntax. One small additional
benefit of this is saving a call to ld-option on incremental builds
because we will have already evaluated it for CONFIG_LD_ORPHAN_WARN.To keep the list of supported architectures the same, introduce
CONFIG_ARCH_WANT_LD_ORPHAN_WARN, which an architecture can select to
gain this automatically after all of the sections are specified and size
asserted. A special thanks to Kees Cook for the help text on this
config.Link: https://github.com/ClangBuiltLinux/linux/issues/1187
Acked-by: Kees Cook
Acked-by: Michael Ellerman (powerpc)
Reviewed-by: Nick Desaulniers
Tested-by: Nick Desaulniers
Signed-off-by: Nathan Chancellor
Signed-off-by: Masahiro Yamada
25 Oct, 2020
1 commit
-
Pull ARM SoC platform updates from Olof Johansson:
"SoC changes, a substantial part of this is cleanup of some of the
older platforms that used to have a bunch of board files.In particular:
- Remove non-DT i.MX platforms that haven't seen activity in years,
it's time to remove them.- A bunch of cleanup and removal of platform data for TI/OMAP
platforms, moving over to genpd for power/reset control (yay!)- Major cleanup of Samsung S3C24xx and S3C64xx platforms, moving them
closer to multiplatform support (not quite there yet, but getting
close).There are a few other changes too, smaller fixlets, etc. For new
platform support, the primary ones are:- New SoC: Hisilicon SD5203, ARM926EJ-S platform.
- Cpufreq support for i.MX7ULP"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (121 commits)
ARM: mstar: Select MStar intc
ARM: stm32: Replace HTTP links with HTTPS ones
ARM: debug: add UART early console support for SD5203
ARM: hisi: add support for SD5203 SoC
ARM: omap3: enable off mode automatically
clk: imx: imx35: Remove mx35_clocks_init()
clk: imx: imx31: Remove mx31_clocks_init()
clk: imx: imx27: Remove mx27_clocks_init()
ARM: imx: Remove unused definitions
ARM: imx35: Retrieve the IIM base address from devicetree
ARM: imx3: Retrieve the AVIC base address from devicetree
ARM: imx3: Retrieve the CCM base address from devicetree
ARM: imx31: Retrieve the IIM base address from devicetree
ARM: imx27: Retrieve the CCM base address from devicetree
ARM: imx27: Retrieve the SYSCTRL base address from devicetree
ARM: s3c64xx: bring back notes from removed debug-macro.S
ARM: s3c24xx: fix Wunused-variable warning on !MMU
ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
MAINTAINERS: mark linux-samsung-soc list non-moderated
ARM: imx: Remove remnant board file support pieces
...
23 Oct, 2020
1 commit
-
Pull Kbuild updates from Masahiro Yamada:
- Support 'make compile_commands.json' to generate the compilation
database more easily, avoiding stale entries- Support 'make clang-analyzer' and 'make clang-tidy' for static checks
using clang-tidy- Preprocess scripts/modules.lds.S to allow CONFIG options in the
module linker script- Drop cc-option tests from compiler flags supported by our minimal
GCC/Clang versions- Use always 12-digits commit hash for CONFIG_LOCALVERSION_AUTO=y
- Use sha1 build id for both BFD linker and LLD
- Improve deb-pkg for reproducible builds and rootless builds
- Remove stale, useless scripts/namespace.pl
- Turn -Wreturn-type warning into error
- Fix build error of deb-pkg when CONFIG_MODULES=n
- Replace 'hostname' command with more portable 'uname -n'
- Various Makefile cleanups
* tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits)
kbuild: Use uname for LINUX_COMPILE_HOST detection
kbuild: Only add -fno-var-tracking-assignments for old GCC versions
kbuild: remove leftover comment for filechk utility
treewide: remove DISABLE_LTO
kbuild: deb-pkg: clean up package name variables
kbuild: deb-pkg: do not build linux-headers package if CONFIG_MODULES=n
kbuild: enforce -Werror=return-type
scripts: remove namespace.pl
builddeb: Add support for all required debian/rules targets
builddeb: Enable rootless builds
builddeb: Pass -n to gzip for reproducible packages
kbuild: split the build log of kallsyms
kbuild: explicitly specify the build id style
scripts/setlocalversion: make git describe output more reliable
kbuild: remove cc-option test of -Werror=date-time
kbuild: remove cc-option test of -fno-stack-check
kbuild: remove cc-option test of -fno-strict-overflow
kbuild: move CFLAGS_{KASAN,UBSAN,KCSAN} exports to relevant Makefiles
kbuild: remove redundant CONFIG_KASAN check from scripts/Makefile.kasan
kbuild: do not create built-in objects for external module builds
...
21 Oct, 2020
1 commit
-
Pull ARM updates from Russell King:
- handle inexact watchpoint addresses (Douglas Anderson)
- decompressor serial debug cleanups (Linus Walleij)
- update L2 cache prefetch bits (Guillaume Tucker)
- add text offset and malloc size to the decompressor kexec data
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: add malloc size to decompressor kexec size structure
ARM: add TEXT_OFFSET to decompressor kexec image structure
ARM: 9007/1: l2c: fix prefetch bits init in L2X0_AUX_CTRL using DT values
ARM: 9010/1: uncompress: Print the location of appended DTB
ARM: 9009/1: uncompress: Enable debug in head.S
ARM: 9008/1: uncompress: Drop excess whitespace print
ARM: 9006/1: uncompress: Wait for ready and busy in debug prints
ARM: 9005/1: debug: Select flow control for all debug UARTs
ARM: 9004/1: debug: Split waituart to CTS and TXRDY
ARM: 9003/1: uncompress: Delete unused debug macros
ARM: 8997/2: hw_breakpoint: Handle inexact watchpoint addresses
24 Sep, 2020
1 commit
-
There was a request to preprocess the module linker script like we
do for the vmlinux one. (https://lkml.org/lkml/2020/8/21/512)The difference between vmlinux.lds and module.lds is that the latter
is needed for external module builds, thus must be cleaned up by
'make mrproper' instead of 'make clean'. Also, it must be created
by 'make modules_prepare'.You cannot put it in arch/$(SRCARCH)/kernel/, which is cleaned up by
'make clean'. I moved arch/$(SRCARCH)/kernel/module.lds to
arch/$(SRCARCH)/include/asm/module.lds.h, which is included from
scripts/module.lds.S.scripts/module.lds is fine because 'make clean' keeps all the
build artifacts under scripts/.You can add arch-specific sections in .
Signed-off-by: Masahiro Yamada
Tested-by: Jessica Yu
Acked-by: Will Deacon
Acked-by: Geert Uytterhoeven
Acked-by: Palmer Dabbelt
Reviewed-by: Kees Cook
Acked-by: Jessica Yu
15 Sep, 2020
1 commit
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Add the TEXT_OFFSET to the decompressor's kexec image structure to
kexec knows what offset to use.Signed-off-by: Russell King
03 Sep, 2020
1 commit
-
We don't want to depend on the linker's orphan section placement
heuristics as these can vary between linkers, and may change between
versions. All sections need to be explicitly handled in the linker
script.Specifically, this would have made a recently fixed bug very obvious:
ld: warning: orphan section `.fixup' from `arch/arm/lib/copy_from_user.o' being placed in section `.fixup'
With all sections handled, enable orphan section warning.
Signed-off-by: Kees Cook
Signed-off-by: Ingo Molnar
Reviewed-by: Nick Desaulniers
Link: https://lore.kernel.org/r/20200902025347.2504702-3-keescook@chromium.org
21 Aug, 2020
1 commit
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s3c24xx and s3c64xx have a lot in common, but are split across three
separate directories, which makes the interaction of the header files
more complicated than necessary.Move all three directories into a new mach-s3c, with a minimal
set of changes to each file.Signed-off-by: Arnd Bergmann
[krzk: Rebase, add s3c24xx and s3c64xx suffix to several files, add SPDX
headers to new files, remove plat-samsung from MAINTAINERS]
Co-developed-by: Krzysztof Kozlowski
Signed-off-by: Krzysztof Kozlowski
https://lore.kernel.org/r/20200806182059.2431-39-krzk@kernel.org
20 Aug, 2020
2 commits
-
The plat-samsung directory and mach-s5pv210 can be build
completely independently, so split the two Kconfig symbols
CONFIG_PLAT_SAMSUNG and CONFIG_ARCH_S5PV210.Signed-off-by: Arnd Bergmann
Acked-by: Ulf Hansson
Acked-by: Thierry Reding
Acked-by: Mark Brown
Link: https://lore.kernel.org/r/20200806182059.2431-18-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski -
Now that no code in arch/arm is shared between mach-exynos and the
others, make the split formal.Signed-off-by: Arnd Bergmann
Acked-by: Ulf Hansson
Link: https://lore.kernel.org/r/20200806182059.2431-15-krzk@kernel.org
Signed-off-by: Krzysztof Kozlowski
07 Aug, 2020
1 commit
-
Pull ARM updates from Russell King:
- add arch/arm/Kbuild from Masahiro Yamada.
- simplify act_mm macro, since it contains an open-coded
get_thread_info.- VFP updates for Clang from Stefan Agner.
- Fix unwinder for Clang from Nathan Huckleberry.
- Remove unused it8152 PCI host controller, used by the removed cm-x2xx
platforms from Mike Rapoport.- Further explanation of __range_ok().
- Remove kimage_voffset that isn't used anymore from Marc Zyngier.
- Drop ancient Thumb-2 workaround for old binutils from Ard Biesheuvel.
- Documentation cleanup for mach-* from Pete Zaitcev.
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 8996/1: Documentation/Clean up the description of mach-
ARM: 8995/1: drop Thumb-2 workaround for ancient binutils
ARM: 8994/1: mm: drop kimage_voffset which was only used by KVM
ARM: uaccess: add further explanation of __range_ok()
ARM: 8993/1: remove it8152 PCI controller driver
ARM: 8992/1: Fix unwind_frame for clang-built kernels
ARM: 8991/1: use VFP assembler mnemonics if available
ARM: 8990/1: use VFP assembler mnemonics in register load/store macros
ARM: 8989/1: use .fpu assembler directives instead of assembler arguments
ARM: 8982/1: mm: Simplify act_mm macro
ARM: 8981/1: add arch/arm/Kbuild
28 Jul, 2020
2 commits
-
The CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11 workaround addresses an issue
which was fixed before the oldest supported binutils (2.23 at this time)
were released. So we can remove it now.Acked-by: Dave Martin
Reviewed-by: Linus Walleij
Signed-off-by: Ard Biesheuvel
Signed-off-by: Russell King -
Initial support for the MStar/Sigmastar Armv7 based IP camera
and dashcam SoCs.These chips are interesting in that they contain a Cortex-A7,
peripherals and system memory in a single tiny QFN package that
can be hand soldered allowing almost anyone to embed Linux
in their projects.Signed-off-by: Daniel Palmer
Signed-off-by: Arnd Bergmann
21 Jul, 2020
1 commit
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Use the standard obj-y form to specify the sub-directories under
arch/arm/. No functional change intended.Signed-off-by: Masahiro Yamada
Signed-off-by: Russell King
07 Jun, 2020
1 commit
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Pull Kbuild updates from Masahiro Yamada:
- fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32
- ensure to rebuild all objects when the compiler is upgraded
- exclude system headers from dependency tracking and fixdep processing
- fix potential bit-size mismatch between the kernel and BPF user-mode
helper- add the new syntax 'userprogs' to build user-space programs for the
target architecture (the same arch as the kernel)- compile user-space sample code under samples/ for the target arch
instead of the host arch- make headers_install fail if a CONFIG option is leaked to user-space
- sanitize the output format of scripts/checkstack.pl
- handle ARM 'push' instruction in scripts/checkstack.pl
- error out before modpost if a module name conflict is found
- error out when multiple directories are passed to M= because this
feature is broken for a long time- add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info
- a lot of cleanups of modpost
- dump vmlinux symbols out into vmlinux.symvers, and reuse it in the
second pass of modpost- do not run the second pass of modpost if nothing in modules is
updated- install modules.builtin(.modinfo) by 'make install' as well as by
'make modules_install' because it is useful even when
CONFIG_MODULES=n- add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ
to allow users to use alternatives such as pigz, pbzip2, etc.* tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (96 commits)
kbuild: add variables for compression tools
Makefile: install modules.builtin even if CONFIG_MODULES=n
mksysmap: Fix the mismatch of '.L' symbols in System.map
kbuild: doc: rename LDFLAGS to KBUILD_LDFLAGS
modpost: change elf_info->size to size_t
modpost: remove is_vmlinux() helper
modpost: strip .o from modname before calling new_module()
modpost: set have_vmlinux in new_module()
modpost: remove mod->skip struct member
modpost: add mod->is_vmlinux struct member
modpost: remove is_vmlinux() call in check_for_{gpl_usage,unused}()
modpost: remove mod->is_dot_o struct member
modpost: move -d option in scripts/Makefile.modpost
modpost: remove -s option
modpost: remove get_next_text() and make {grab,release_}file static
modpost: use read_text_file() and get_line() for reading text files
modpost: avoid false-positive file open error
modpost: fix potential mmap'ed file overrun in get_src_version()
modpost: add read_text_file() and get_line() helpers
modpost: do not call get_modinfo() for vmlinux(.o)
...
12 May, 2020
1 commit
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$(AS) is not used anywhere in the kernel build, hence commit
aa824e0c962b ("kbuild: remove AS variable") killed it.Remove the left-over code in arch/{arm,arm64}/Makefile.
Signed-off-by: Masahiro Yamada
Reviewed-by: Nathan Chancellor
Acked-by: Will Deacon
13 Apr, 2020
1 commit
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Introduce ARCH_REALTEK Kconfig option also for 32-bit Arm.
Override the text offset to cope with boot ROM occupying first 0xa800
bytes and further reservations up to 0xf4000 (compare Device Tree).Add a custom machine_desc to enforce memory carveout for I/O registers.
Signed-off-by: Andreas Färber
04 Apr, 2020
1 commit
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Pull ARM SoC updates from Arnd Bergmann:
"The code changes are mostly for 32-bit platforms and include:- Lots of updates for the Nvidia Tegra platform, including cpuidle,
pmc, and dt-binding changes- Microchip at91 power management updates for the recently added
sam9x60 SoC- Treewide setup_irq deprecation by afzal mohammed
- STMicroelectronics stm32 gains earlycon support
- Renesas platforms with Cortex-A9 can now use the global timer
- Some TI OMAP2+ platforms gain cpuidle support
- Various cleanups for the i.MX6 and Orion platforms, as well as
Kconfig files across all platforms"* tag 'arm-soc-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (75 commits)
ARM: qcom: Add support for IPQ40xx
ARM: mmp: replace setup_irq() by request_irq()
ARM: cns3xxx: replace setup_irq() by request_irq()
ARM: spear: replace setup_irq() by request_irq()
ARM: ep93xx: Replace setup_irq() by request_irq()
ARM: iop32x: replace setup_irq() by request_irq()
arm: mach-dove: Mark dove_io_desc as __maybe_unused
ARM: orion: replace setup_irq() by request_irq()
ARM: debug: stm32: add UART early console support for STM32MP1
ARM: debug: stm32: add UART early console support for STM32H7
ARM: debug: stm32: add UART early console configuration for STM32F7
ARM: debug: stm32: add UART early console configuration for STM32F4
cpuidle: tegra: Disable CC6 state if LP2 unavailable
cpuidle: tegra: Squash Tegra114 driver into the common driver
cpuidle: tegra: Squash Tegra30 driver into the common driver
cpuidle: Refactor and move out NVIDIA Tegra20 driver into drivers/cpuidle
ARM: tegra: cpuidle: Remove unnecessary memory barrier
ARM: tegra: cpuidle: Make abort_flag atomic
ARM: tegra: cpuidle: Handle case where secondary CPU hangs on entering LP2
ARM: tegra: Make outer_disable() open-coded
...
03 Apr, 2020
1 commit
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Pull kvm updates from Paolo Bonzini:
"ARM:
- GICv4.1 support- 32bit host removal
PPC:
- secure (encrypted) using under the Protected Execution Framework
ultravisors390:
- allow disabling GISA (hardware interrupt injection) and protected
VMs/ultravisor support.x86:
- New dirty bitmap flag that sets all bits in the bitmap when dirty
page logging is enabled; this is faster because it doesn't require
bulk modification of the page tables.- Initial work on making nested SVM event injection more similar to
VMX, and less buggy.- Various cleanups to MMU code (though the big ones and related
optimizations were delayed to 5.8). Instead of using cr3 in
function names which occasionally means eptp, KVM too has
standardized on "pgd".- A large refactoring of CPUID features, which now use an array that
parallels the core x86_features.- Some removal of pointer chasing from kvm_x86_ops, which will also
be switched to static calls as soon as they are available.- New Tigerlake CPUID features.
- More bugfixes, optimizations and cleanups.
Generic:
- selftests: cleanups, new MMU notifier stress test, steal-time test- CSV output for kvm_stat"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (277 commits)
x86/kvm: fix a missing-prototypes "vmread_error"
KVM: x86: Fix BUILD_BUG() in __cpuid_entry_get_reg() w/ CONFIG_UBSAN=y
KVM: VMX: Add a trampoline to fix VMREAD error handling
KVM: SVM: Annotate svm_x86_ops as __initdata
KVM: VMX: Annotate vmx_x86_ops as __initdata
KVM: x86: Drop __exit from kvm_x86_ops' hardware_unsetup()
KVM: x86: Copy kvm_x86_ops by value to eliminate layer of indirection
KVM: x86: Set kvm_x86_ops only after ->hardware_setup() completes
KVM: VMX: Configure runtime hooks using vmx_x86_ops
KVM: VMX: Move hardware_setup() definition below vmx_x86_ops
KVM: x86: Move init-only kvm_x86_ops to separate struct
KVM: Pass kvm_init()'s opaque param to additional arch funcs
s390/gmap: return proper error code on ksm unsharing
KVM: selftests: Fix cosmetic copy-paste error in vm_mem_region_move()
KVM: Fix out of range accesses to memslots
KVM: X86: Micro-optimize IPI fastpath delay
KVM: X86: Delay read msr data iff writes ICR MSR
KVM: PPC: Book3S HV: Add a capability for enabling secure guests
KVM: arm64: GICv4.1: Expose HW-based SGIs in debugfs
KVM: arm64: GICv4.1: Allow non-trapping WFI when using HW SGIs
...
01 Apr, 2020
1 commit
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Add support for the Qualcomm IPQ40xx SoC in Kconfig.
Also add its appropriate textofs.Signed-off-by: Christian Lamparter
Signed-off-by: John Crispin
Tested-by: Robert Marko
Cc: Luka Perkov
Signed-off-by: Arnd Bergmann
24 Mar, 2020
1 commit
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As we're about to drop KVM/arm on the floor, carefully unplug
it from the build system.Signed-off-by: Marc Zyngier
Acked-by: Olof Johansson
Acked-by: Arnd Bergmann
Acked-by: Will Deacon
Acked-by: Vladimir Murzin
Acked-by: Catalin Marinas
Acked-by: Linus Walleij
Acked-by: Christoffer Dall
22 Feb, 2020
1 commit
-
When using plugins, GCC requires that the -fplugin= options precedes
any of its plugin arguments appearing on the command line as well.
This is usually not a concern, but as it turns out, this requirement
is causing some issues with ARM's per-task stack protector plugin
and Kbuild's implementation of $(cc-option).When the per-task stack protector plugin is enabled, and we tweak
the implementation of cc-option not to pipe the stderr output of
GCC to /dev/null, the following output is generated when GCC is
executed in the context of cc-option:cc1: error: plugin arm_ssp_per_task_plugin should be specified before \
-fplugin-arg-arm_ssp_per_task_plugin-tso=1 in the command line
cc1: error: plugin arm_ssp_per_task_plugin should be specified before \
-fplugin-arg-arm_ssp_per_task_plugin-offset=24 in the command lineThese errors will cause any option passed to cc-option to be treated
as unsupported, which is obviously incorrect.The cause of this issue is the fact that the -fplugin= argument is
added to GCC_PLUGINS_CFLAGS, whereas the arguments above are added
to KBUILD_CFLAGS, and the contents of the former get filtered out of
the latter before being passed to the GCC running the cc-option test,
and so the -fplugin= option does not appear at all on the GCC command
line.Adding the arguments to GCC_PLUGINS_CFLAGS instead of KBUILD_CFLAGS
would be the correct approach here, if it weren't for the fact that we
are using $(eval) to defer the moment that they are added until after
asm-offsets.h is generated, which is after the point where the contents
of GCC_PLUGINS_CFLAGS are added to KBUILD_CFLAGS. So instead, we have
to add our plugin arguments to both.For similar reasons, we cannot append DISABLE_ARM_SSP_PER_TASK_PLUGIN
to KBUILD_CFLAGS, as it will be passed to GCC when executing in the
context of cc-option, whereas the other plugin arguments will have
been filtered out, resulting in a similar error and false negative
result as above. So add it to ccflags-y instead.Fixes: 189af4657186da08 ("ARM: smp: add support for per-task stack canaries")
Reported-by: Merlijn Wajer
Tested-by: Tony Lindgren
Acked-by: Kees Cook
Reviewed-by: Masahiro Yamada
Signed-off-by: Ard Biesheuvel
Signed-off-by: Russell King
23 Sep, 2019
1 commit
-
Pull ARM updates from Russell King:
- fix various clang build and cppcheck issues
- switch ARM to use new common outgoing-CPU-notification code
- add some additional explanation about the boot code
- kbuild "make clean" fixes
- get rid of another "(____ptrval____)", this time for the VDSO code
- avoid treating cache maintenance faults as a write
- add a frame pointer unwinder implementation for clang
- add EDAC support for Aurora L2 cache
- improve robustness of adjust_lowmem_bounds() finding the bounds of
lowmem.- add reset control for AMBA primecell devices
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (24 commits)
ARM: 8906/1: drivers/amba: add reset control to amba bus probe
ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer
ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary
ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address
ARM: 8891/1: EDAC: armada_xp: Add support for more SoCs
ARM: 8888/1: EDAC: Add driver for the Marvell Armada XP SDRAM and L2 cache ECC
ARM: 8892/1: EDAC: Add missing debugfs_create_x32 wrapper
ARM: 8890/1: l2x0: add marvell,ecc-enable property for aurora
ARM: 8889/1: dt-bindings: document marvell,ecc-enable binding
ARM: 8886/1: l2x0: support parity-enable/disable on aurora
ARM: 8885/1: aurora-l2: add defines for parity and ECC registers
ARM: 8887/1: aurora-l2: add prefix to MAX_RANGE_SIZE
ARM: 8902/1: l2c: move cache-aurora-l2.h to asm/hardware
ARM: 8900/1: UNWINDER_FRAME_POINTER implementation for Clang
ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes
ARM: 8896/1: VDSO: Don't leak kernel addresses
ARM: 8895/1: visit mach-* and plat-* directories when cleaning
ARM: 8894/1: boot: Replace open-coded nop with macro
ARM: 8893/1: boot: Explain the 8 nops
ARM: 8876/1: fix O= building with CONFIG_FPE_FASTFPE
...
20 Sep, 2019
1 commit
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Pull Kbuild updates from Masahiro Yamada:
- add modpost warn exported symbols marked as 'static' because 'static'
and EXPORT_SYMBOL is an odd combination- break the build early if gold linker is used
- optimize the Bison rule to produce .c and .h files by a single
pattern rule- handle PREEMPT_RT in the module vermagic and UTS_VERSION
- warn CONFIG options leaked to the user-space except existing ones
- make single targets work properly
- rebuild modules when module linker scripts are updated
- split the module final link stage into scripts/Makefile.modfinal
- fix the missed error code in merge_config.sh
- improve the error message displayed on the attempt of the O= build in
unclean source tree- remove 'clean-dirs' syntax
- disable -Wimplicit-fallthrough warning for Clang
- add CONFIG_CC_OPTIMIZE_FOR_SIZE_O3 for ARC
- remove ARCH_{CPP,A,C}FLAGS variables
- add $(BASH) to run bash scripts
- change *CFLAGS_.o to take the relative path to $(obj)
instead of the basename- stop suppressing Clang's -Wunused-function warnings when W=1
- fix linux/export.h to avoid genksyms calculating CRC of trimmed
exported symbols- misc cleanups
* tag 'kbuild-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (63 commits)
genksyms: convert to SPDX License Identifier for lex.l and parse.y
modpost: use __section in the output to *.mod.c
modpost: use MODULE_INFO() for __module_depends
export.h, genksyms: do not make genksyms calculate CRC of trimmed symbols
export.h: remove defined(__KERNEL__), which is no longer needed
kbuild: allow Clang to find unused static inline functions for W=1 build
kbuild: rename KBUILD_ENABLE_EXTRA_GCC_CHECKS to KBUILD_EXTRA_WARN
kbuild: refactor scripts/Makefile.extrawarn
merge_config.sh: ignore unwanted grep errors
kbuild: change *FLAGS_.o to take the path relative to $(obj)
modpost: add NOFAIL to strndup
modpost: add guid_t type definition
kbuild: add $(BASH) to run scripts with bash-extension
kbuild: remove ARCH_{CPP,A,C}FLAGS
kbuild,arc: add CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3 for ARC
kbuild: Do not enable -Wimplicit-fallthrough for clang for now
kbuild: clean up subdir-ymn calculation in Makefile.clean
kbuild: remove unneeded '+' marker from cmd_clean
kbuild: remove clean-dirs syntax
kbuild: check clean srctree even earlier
...
10 Sep, 2019
1 commit
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Currently, multi_v7_defconfig + CONFIG_FUNCTION_TRACER fails to build
with clang:arm-linux-gnueabi-ld: kernel/softirq.o: in function `_local_bh_enable':
softirq.c:(.text+0x504): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `__local_bh_enable_ip':
softirq.c:(.text+0x58c): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `do_softirq':
softirq.c:(.text+0x6c8): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `irq_enter':
softirq.c:(.text+0x75c): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o: in function `irq_exit':
softirq.c:(.text+0x840): undefined reference to `mcount'
arm-linux-gnueabi-ld: kernel/softirq.o:softirq.c:(.text+0xa50): more undefined references to `mcount' followclang can emit a working mcount symbol, __gnu_mcount_nc, when
'-meabi gnu' is passed to it. Until r369147 in LLVM, this was
broken and caused the kernel not to boot with '-pg' because the
calling convention was not correct. Always build with '-meabi gnu'
when using clang but ensure that '-pg' (which is added with
CONFIG_FUNCTION_TRACER and its prereq CONFIG_HAVE_FUNCTION_TRACER)
cannot be added with it unless this is fixed (which means using
clang 10.0.0 and newer).Link: https://github.com/ClangBuiltLinux/linux/issues/35
Link: https://bugs.llvm.org/show_bug.cgi?id=33845
Link: https://github.com/llvm/llvm-project/commit/16fa8b09702378bacfa3d07081afe6b353b99e60Reviewed-by: Matthias Kaehlcke
Reviewed-by: Nick Desaulniers
Reviewed-by: Stefan Agner
Signed-off-by: Nathan Chancellor
Signed-off-by: Russell King
03 Sep, 2019
1 commit
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…l/aspeed into arm/soc
ASPEED architecture updates for 5.4
This adds support for the new ASPEED AST2600 BMC SoC.
* tag 'aspeed-5.4-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/joel/aspeed:
ARM: aspeed: Enable SMP boot
ARM: aspeed: Add ASPEED AST2600 architecture
ARM: aspeed: Select timer in each SoC
dt-bindings: arm: cpus: Add ASPEED SMPLink: https://lore.kernel.org/r/CACPK8Xc1aSp5fXL3cEzC9SJsCXG2JwsSPpQrW3a09dkvhCyHHA@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
29 Aug, 2019
1 commit
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The stackframe setup when compiled with clang is different.
Since the stack unwinder expects the gcc stackframe setup it
fails to print backtraces. This patch adds support for the
clang stackframe setup.Link: https://github.com/ClangBuiltLinux/linux/issues/35
Cc: clang-built-linux@googlegroups.com
Suggested-by: Tri Vo
Signed-off-by: Nathan Huckleberry
Tested-by: Nick Desaulniers
Reviewed-by: Nick Desaulniers
Signed-off-by: Russell King
25 Aug, 2019
1 commit
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This brings the secondary CPU into Linux. It depends on the setup
performed by ASPEED's u-boot.Signed-off-by: Joel Stanley
23 Aug, 2019
2 commits
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When you run "make clean" for arm, it never visits mach-* or plat-*
directories because machine-y and plat-y are just empty.When cleaning, all machine, plat directories are accumulated to
machine-, plat-, respectively. So, let's pass them to core- to
clean up those directories.Signed-off-by: Masahiro Yamada
Signed-off-by: Russell King -
To use Fastfpe, a user is supposed to enable CONFIG_FPE_FASTFPE
and put downstream source files into arch/arm/fastfpe/.It is not working for O= build because $(wildcard arch/arm/fastfpe)
checks if it exists in $(objtree), not in $(srctree).Add the $(srctree)/ prefix to fix it.
While I was here, I slightly refactored the code.
Signed-off-by: Masahiro Yamada
Signed-off-by: Russell King
21 Aug, 2019
1 commit
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Currently, the timestamp of module linker scripts are not checked.
Add them to the dependency of modules so they are correctly rebuilt.Signed-off-by: Masahiro Yamada
14 Aug, 2019
4 commits
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Various bits of iop32x are now in their traditional locations in plat-iop,
mach-iop/include/mach/ and in include/asm/mach/hardware. As nothing
outside of the iop32x mach code references these any more, this can all
be moved into one place now.The only remaining things in the include/mach/ directory are now the
NR_IRQS definition, the entry-macros.S file and the the decompressor
uart access. After the irqchip code has been converted to SPARSE_IRQ
and GENERIC_IRQ_MULTI_HANDLER, it can be moved to ARCH_MULTIPLATFORM.Link: https://lore.kernel.org/r/20190809163334.489360-7-arnd@arndb.de
Signed-off-by: Arnd Bergmann -
There are three families of IOP machines we support in Linux: iop32x
(which includes EP80219), iop33x and iop13xx (aka IOP34x aka WP8134x).All products we support in the kernel are based on the first of these,
iop32x, the other families only ever supported the Intel reference
boards but no actual machine anyone could ever buy.While one could clearly make them all three work in a single kernel
with some work, this takes the easy way out, removing the later two
platforms entirely, under the assumption that there are no remaining
users.Earlier versions of OpenWRT and Debian both had support for iop32x
but not the others, and they both dropped iop32x as well in their 2015
releases.Link: https://lore.kernel.org/r/20190809163334.489360-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann
Acked-by: Wolfram Sang # for I2C parts
Acked-by: Dan Williams
Acked-by: Martin Michlmayr
Signed-off-by: Arnd Bergmann -
This removes the old Winbond w90x900 platform, also known
as Nuvoton NUC900. Wan Zongshun originally contributed
the port and maintained it since then.From all I can tell, this platform is no longer being used
with modern kernels, based on various indications:- The supported chips (nuc910/950/960) are no longer marketed
by the manufacturer- Newer chips from the same family (nuc97x, nuc980, n329x)
that are still marketed have Linux BSPs but those were never
submitted for upstream inclusion.- The last patch from the platform maintainer was in 2011.
- All patches to w90x900 platform specific files afterwards
are cleanups that were apparently done without access to
test hardware.- Both the website and the email address listed in the
MAINTAINERS have become unreachable.Link: https://lore.kernel.org/r/20190809202749.742267-17-arnd@arndb.de
Cc: "Wanzongshun (Vincent)"
Signed-off-by: Arnd Bergmann -
ks8695 is an older SoC originally made by Kendin, which was later acquired
by Micrel, and subsequently by Microchip.The platform port was originally contributed by Andrew Victor and Ben
Dooks, and later maintained by Greg Ungerer.When I recently submitted cleanups, but Greg noted that the platform no
longer boots and nobody is using it any more, we decided to remove it.Link: https://lore.kernel.org/r/20190809202749.742267-2-arnd@arndb.de
Cc: Andrew Victor
Acked-by: Ben Dooks
Link: https://wikidevi.com/wiki/Micrel
Link: https://lore.kernel.org/linux-arm-kernel/2bc41895-d4f9-896c-0726-0b2862fcbf25@kernel.org/
Signed-off-by: Arnd Bergmann
Acked-by: Greg Ungerer
Signed-off-by: Arnd Bergmann
22 May, 2019
1 commit
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After discussing with the subarch maintainers and Hilscher,
we concluded that the netx subarchitecture (Netx 100/500)
is no longer maintained or tested, and noone will miss it
if we delete it. So delete it.There is a newer Netx 4000 architecture which we may see
included at some point, but this will be supported using
the standard multiplatform and devicetree mechanisms and is
easier to develop from scratch.Cc: Michael Trensch
Acked-By: Robert Schwebel
Acked-by: Sascha Hauer
Signed-off-by: Linus Walleij
17 May, 2019
1 commit
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Pull ARM updates from Russell King:
"ARM development updates:- more unified assembly conversions for clang
- drop obsolete -mauto-it assembler option
- remove arm_memory_present in preference to the generic version
- remove unused asm/limits.h header
- vdso linker update
We tried to make the assembler warn if unified syntax was not used,
but unfortunately older versions of GCC warn, so the commit had to be
reverted"* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
Revert "ARM: 8846/1: warn if divided syntax assembler is used"
ARM: 8858/1: vdso: use $(LD) instead of $(CC) to link VDSO
ARM: 8855/1: remove unused
ARM: 8850/1: use memblocks_present
ARM: 8854/1: drop -mauto-it
ARM: 8846/1: warn if divided syntax assembler is used
ARM: 8853/1: drop WASM to work around LLVM issue
ARM: 8852/1: uaccess: use unified assembler language syntax
ARM: 8851/1: add TUSERCOND() macro for conditional postfix
16 May, 2019
1 commit
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This reverts commit e8c24bbda7d5eba6df5ca45e5462fd3f96b8f217.
GCC 4.7, which is still permitted, emits code using the original
syntax. This means we end up with lots of assembler warnings when
building with a currently-supported version of gcc.Revert the commit (with fixups to keep the follow-on -mauto-it
change) to avoid these warnings.Signed-off-by: Russell King
24 Apr, 2019
2 commits
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The assembler option -mauto-it is no longer a valid option. The last
remaining references have been removed from the documentation in
July 2009 [0].The currently supported binutils version is 2.20 (released in
September 2009) or higher where gas supports -mimplicit-it=always.
Drop the fallback to -mauto-it and use -mimplicit-it=always only.[0] https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=529707530657a333a304c651c808ea630c955223
Signed-off-by: Stefan Agner
Reviewed-by: Nick Desaulniers
Signed-off-by: Russell King -
Remove the -mno-warn-deprecated assembler flag to make sure the GNU
assembler warns in case non-unified syntax is used.Signed-off-by: Stefan Agner
Acked-by: Nicolas Pitre
Reviewed-by: Nick Desaulniers
Signed-off-by: Russell King
