Changes in Makefile

b060b7d0 - ARC: __switch_to: asm with dwarf ops (vs. inline asm)

Thu, 14 May 2020 07:16:34 +0000

ARC: __switch_to: asm with dwarf ops (vs. inline asm)__switch_to() is final step of context switch, swapping kernel modesstack (and callee regs) of outgoing task with next task.It is also the starting point of stack unwinging of a sleeping task andcaptures SP, FP, BLINK and the corresponding dwarf info. Back whendinosaurs still roamed around, ARC gas didn't support CFI pseudo ops andgcc was responsible for generating dwarf info. Thus it had to be writtenin "C" with inline asm to do the hand crafting of stack. The functionprologue (and crucial saving of blink etc) was still gcc generated butnot visible in code. Likewise dwarf info was missing.Now with modern tools, we can make things more obvious by writing thecode in asm and adding approproate dwarf cfi pseudo ops.This is mostly non functional change, except for slight chnages to asm - ARCompact doesn't support MOV_S fp, sp, so we use MOVSigned-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

32164845 - kbuild: use obj-y instead extra-y for objects placed at the head

Sat, 24 Sep 2022 18:19:14 +0000

kbuild: use obj-y instead extra-y for objects placed at the headThe objects placed at the head of vmlinux need special treatments: - arch/$(SRCARCH)/Makefile adds them to head-y in order to place them before other archives in the linker command line. - arch/$(SRCARCH)/kernel/Makefile adds them to extra-y instead of obj-y to avoid them going into built-in.a.This commit gets rid of the latter.Create vmlinux.a to collect all the objects that are unconditionallylinked to vmlinux. The objects listed in head-y are moved to the headof vmlinux.a by using 'ar m'.With this, arch/$(SRCARCH)/kernel/Makefile can consistently use obj-yfor builtin objects.There is no *.o that is directly linked to vmlinux. Drop unneeded codein scripts/clang-tools/gen_compile_commands.py.$(AR) mPi needs 'T' to workaround the llvm-ar bug. The fix was suggestedby Nathan Chancellor [1].[1]: https://lore.kernel.org/llvm/YyjjT5gQ2hGMH0ni@dev-arch.thelio-3990X/Signed-off-by: Masahiro Yamada Tested-by: Nick Desaulniers Reviewed-by: Nicolas Schier List of files: /linux-6.15/arch/arc/kernel/Makefile

9eca345c - arc: ptrace: hard-code "arc" instead of UTS_MACHINE

Mon, 13 Apr 2020 01:32:40 +0000

arc: ptrace: hard-code "arc" instead of UTS_MACHINEARC uses the UTS_MACHINE defined in the top Makefile as follows: UTS_MACHINE := $(ARCH)We know it is "arc" when we are building the kernel for ARC.Hard-code user_regset_view::name, like many other architectures do.Signed-off-by: Masahiro Yamada Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

f45ba2bd - ARCv2: fpu: preserve userspace fpu state

Fri, 17 Jan 2020 23:04:03 +0000

ARCv2: fpu: preserve userspace fpu stateSigned-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

f091d5a4 - ARC: ARCv2: jump label: implement jump label patching

Fri, 08 Nov 2019 16:20:22 +0000

ARC: ARCv2: jump label: implement jump label patchingImplement jump label patching for ARC. Jump labels providean interface to generate dynamic branches usingself-modifying code.This allows us to implement conditional branches wherechanging branch direction is expensive but branch selectionis basically 'free'This implementation uses 32-bit NOP and BRANCH instructionswhich forced to be aligned by 4 to guarantee that they don'tcross L1 cache line boundary and can be update atomically.Signed-off-by: Eugeniy Paltsev Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

d2912cb1 - treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500

Tue, 04 Jun 2019 08:11:33 +0000

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation #extracted by the scancode license scanner the SPDX license identifier GPL-2.0-onlyhas been chosen to replace the boilerplate/reference in 4122 file(s).Signed-off-by: Thomas Gleixner Reviewed-by: Enrico Weigelt Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.orgLink: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.deSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/arch/arc/kernel/Makefile

77f0c8bc - ARC: Remove empty kernel/pcibios.c

Sat, 24 Jun 2017 01:50:44 +0000

ARC: Remove empty kernel/pcibios.cARC requires no arch-specific pcibios hooks, so delete this empty file.Signed-off-by: Palmer Dabbelt Signed-off-by: Bjorn Helgaas List of files: /linux-6.15/arch/arc/kernel/Makefile

c4c9a040 - clocksource: import ARC timer driver

Mon, 31 Oct 2016 20:46:38 +0000

clocksource: import ARC timer driverThis adds support for - CONFIG_ARC_TIMERS : legacy 32-bit TIMER0 and TIMER1 which count UP from @CNT to @LIMIT, before optionally triggering an interrupt. These are programmed using ARC auxiliary register interface. These are present in all ARC cores (ARC700 and ARC HS38) TIMER0 serves as clockevent for all ARC linux builds. TIMER1 is used for clocksource in arc700 builds. - CONFIG_ARC_TIMERS_64BIT: 64-bit counters, RTC and GFRC found in ARC HS38 cores. These are independnet IP blocks with different programming model respectively.Link: http://lkml.kernel.org/r/20161111231132.GA4186@maiAcked-by: Daniel Lezcano Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

6e9318d1 - ARC: RIP arc_{get|set}_core_freq() clk API

Mon, 01 Feb 2016 14:30:17 +0000

ARC: RIP arc_{get|set}_core_freq() clk APIThere are no more users of this - so RIP!Signed-off-by: Alexey Brodkin [vgupta: update changelog]Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

c1678ffc - ARC: Add PCI support

Thu, 10 Mar 2016 20:44:13 +0000

ARC: Add PCI supportAdd PCI support to ARC and update drivers/pci Makefile enabling the ARCarch to use the generic PCI setup functions.[bhelgaas: fold in Joao's pci-dma-compat.h & pci-bridge.h build fix (Ishould have caught this myself, sorry]Signed-off-by: Joao Pinto Signed-off-by: Bjorn Helgaas Acked-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

82fea5a1 - ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et al

Wed, 10 Sep 2014 13:35:38 +0000

ARCv2: SMP: Support ARConnect (MCIP) for Inter-Core-Interrupts et alCc: Jason Cooper Cc: Thomas Gleixner Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

1f6ccfff - ARCv2: Support for ARCv2 ISA and HS38x cores

Mon, 13 May 2013 13:00:41 +0000

ARCv2: Support for ARCv2 ISA and HS38x coresThe notable features are: - SMP configurations of upto 4 cores with coherency - Optional L2 Cache and IO-Coherency - Revised Interrupt Architecture (multiple priorites, reg banks, auto stack switch, auto regfile save/restore) - MMUv4 (PIPT dcache, Huge Pages) - Instructions for * 64bit load/store: LDD, STD * Hardware assisted divide/remainder: DIV, REM * Function prologue/epilogue: ENTER_S, LEAVE_S * IRQ enable/disable: CLRI, SETI * pop count: FFS, FLS * SETcc, BMSKN, XBFU...Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

5793e273 - ARC: intc: split into ARCompact ISA specific, common bits

Thu, 05 Mar 2015 13:43:56 +0000

ARC: intc: split into ARCompact ISA specific, common bitsSigned-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

6d1a20b1 - ARC: entry.S: split into ARCompact ISA specific, common bits

Sat, 21 Feb 2015 09:39:32 +0000

ARC: entry.S: split into ARCompact ISA specific, common bitsSigned-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

1736a56f - ARC: rename kconfig option for unaligned emulation

Mon, 08 Sep 2014 05:48:15 +0000

ARC: rename kconfig option for unaligned emulationSigned-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

0dd450fe - ARC: Add perf support for ARC700 cores

Thu, 07 Nov 2013 13:55:11 +0000

ARC: Add perf support for ARC700 coresThis adds basic perf support for ARC700 cores. Most PERF_COUNT_HW* eventsare supported now.Signed-off-by: Mischa Jonker Acked-by: Peter Zijlstra Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

cbe056f7 - ARC: Hostlink Pseudo-Driver for Metaware Debugger

Fri, 18 Jan 2013 09:42:25 +0000

ARC: Hostlink Pseudo-Driver for Metaware DebuggerThis allows ARC Target to do I/O to host in absence of any peripheralswhatsoever, assisted by Metaware Hostlink facility.Further we have a FUSE based filesystem which makes us mount/access hostfilesystem on target and do fops.Signed-off-by: Vineet Gupta List of files: /linux-6.15/arch/arc/kernel/Makefile

f46121bd - ARC: kgdb support

Fri, 18 Jan 2013 09:42:24 +0000

ARC: kgdb supportSigned-off-by: Mischa Jonker Signed-off-by: Vineet Gupta Cc: Jason Wessel Acked-by: Jason Wessel List of files: /linux-6.15/arch/arc/kernel/Makefile

2e651ea1 - ARC: Unaligned access emulation

Wed, 23 Jan 2013 11:00:36 +0000

ARC: Unaligned access emulationARC700 doesn't natively support unaligned access, but can be emulated-Unaligned Access Exception-Disassembly at the Fault address to find the exact insn (long/short)Also per Arnd's comment, we runtime control it using 2 sysctl knobs:* SYSCTL_ARCH_UNALIGN_ALLOW: Runtime enable/disble* SYSCTL_ARCH_UNALIGN_NO_WARN: Warn on each emulation attemptOriginally contributed by Tim Yao Signed-off-by: Vineet Gupta Cc: Tim Yao Acked-by: Arnd Bergmann List of files: /linux-6.15/arch/arc/kernel/Makefile

4d86dfbb - ARC: kprobes support

Tue, 22 Jan 2013 11:33:59 +0000

ARC: kprobes supportOrigin port done by Rajeshwar RangaSigned-off-by: Vineet Gupta Cc: Rajeshwar Ranga List of files: /linux-6.15/arch/arc/kernel/Makefile