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1d7ba0165d
linux/arch/mips
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Romain Naour 1d7ba0165d mips: Do not include hi and lo in clobber list for R6 
From [1]
"GCC 10 (PR 91233) won't silently allow registers that are not
architecturally available to be present in the clobber list anymore,
resulting in build failure for mips*r6 targets in form of:
...
.../sysdep.h:146:2: error: the register ‘lo’ cannot be clobbered in ‘asm’ for the current target
  146 |  __asm__ volatile (      \
      |  ^~~~~~~

This is because base R6 ISA doesn't define hi and lo registers w/o DSP
extension. This patch provides the alternative clobber list for r6 targets
that won't include those registers."

Since kernel 5.4 and mips support for generic vDSO [2], the kernel fail to
build for mips r6 cpus with gcc 10 for the same reason as glibc.

[1] https://sourceware.org/git/?p=glibc.git;a=commit;h=020b2a97bb15f807c0482f0faee2184ed05bcad8
[2] '24640f233b46 ("mips: Add support for generic vDSO")'

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-04-23 13:42:05 +02:00
..
alchemy MIPS: Alchemy: Use DEFINE_SPINLOCK() for spinlock 2021-04-12 16:54:57 +02:00
ar7 MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
ath25 MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
ath79 MIPS: of: Introduce helper function to get DTB 2021-02-04 13:34:51 +01:00
bcm47xx MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
bcm63xx MIPS: BCM63xx: Spello fix in the file clk.c 2021-03-10 15:21:43 +01:00
bmips MIPS: bmips: include <linux/dma-direct.h> for phys_to_dma 2021-03-06 08:43:40 +01:00
boot MIPS:DTS:Correct the license for Loongson-2K 2021-04-23 13:41:18 +02:00
cavium-octeon MIPS: octeon: Add __raw_copy_[from|to|in]_user symbols 2021-04-09 11:43:52 +02:00
cobalt MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
configs MIPS: Loongson64: enable CONFIG_USB_SERIAL_PL2303 2021-03-29 11:19:33 +02:00
crypto crypto: mips: add poly1305-core.S to .gitignore 2021-03-29 11:19:10 +02:00
dec MIPS: DEC: Restore bootmem reservation for firmware working memory area 2020-10-14 23:57:57 +02:00
fw MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
generic MIPS: generic: Update node names to avoid unit addresses 2021-04-12 16:48:35 +02:00
include mips: Do not include hi and lo in clobber list for R6 2021-04-23 13:42:05 +02:00
ingenic MIPS: jz4740: Rename jz4740 folders to ingenic 2020-09-18 16:35:05 +02:00
jazz MIPS: jazz: always allow little-endian builds 2021-01-22 13:53:21 +01:00
kernel MIPS: Makefile: Replace -pg with CC_FLAGS_FTRACE 2021-04-21 13:44:35 +02:00
kvm MIPS: Remove KVM_TE support 2021-03-10 15:18:48 +01:00
lantiq MIPS: of: Introduce helper function to get DTB 2021-02-04 13:34:51 +01:00
lib MIPS: Remove get_fs/set_fs 2021-04-06 15:12:58 +02:00
loongson2ef - added support for Nintendo N64 2021-02-21 13:18:26 -08:00
loongson32 MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
loongson64 MIPS: Loongson64: Add kexec/kdump support 2021-04-16 09:18:06 +02:00
math-emu MIPS: Use fallthrough for arch/mips 2020-05-07 11:55:47 +02:00
mm MIPS: uaccess: Added __get/__put_kernel_nofault 2021-04-06 14:36:56 +02:00
mti-malta MIPS: Remove KVM_GUEST support 2021-03-10 15:18:40 +01:00
n64 mips: Add N64 machine type 2021-01-22 11:40:00 +01:00
net bpf: Rename BPF_XADD and prepare to encode other atomics in .imm 2021-01-14 18:34:29 -08:00
netlogic MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
pci MIPS: pci-legacy: revert "use generic pci_enable_resources" 2021-04-21 13:44:05 +02:00
pic32 MIPS: of: Introduce helper function to get DTB 2021-02-04 13:34:51 +01:00
pistachio driver core: lift dma_default_coherent into common code 2021-02-13 09:51:45 +01:00
power mips: check for dsp presence only once before save/restore 2019-10-07 10:58:53 -07:00
ralink MIPS: ralink: rt288x: select MIPS_AUTO_PFN_OFFSET 2021-04-06 15:12:58 +02:00
rb532 MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
sgi-ip22 MIPS: Only include the platform file needed 2020-05-13 00:17:18 +02:00
sgi-ip27 mips/sgi-ip27: Delete obsolete TODO file 2021-03-30 15:06:37 +02:00
sgi-ip30 MIPS: SGI-IP30: Move irq bits to better header files 2020-09-21 22:15:49 +02:00
sgi-ip32 arch: mips: update references to current linux-mips list 2021-02-23 13:24:38 +01:00
sibyte MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
sni MIPS: SNI: Fix spurious interrupts 2020-09-16 22:40:58 +02:00
tools MIPS: tools: Fix resource leak in elf-entry.c 2020-05-24 09:29:48 +02:00
txx9 MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
vdso MIPS: Makefile: Replace -pg with CC_FLAGS_FTRACE 2021-04-21 13:44:35 +02:00
vr41xx MIPS: Remove empty prom_free_prom_memory functions 2021-01-07 17:11:33 +01:00
Kbuild MIPS: Fix "make clean" error due to recent changes 2020-05-13 13:20:22 +02:00
Kbuild.platforms mips: Add N64 machine type 2021-01-22 11:40:00 +01:00
Kconfig MIPS: Remove get_fs/set_fs 2021-04-06 15:12:58 +02:00
Kconfig.debug arch: mips: fix unmet dependency for DEBUG_INFO 2021-03-29 11:17:23 +02:00
Makefile - added support for Nintendo N64 2021-02-21 13:18:26 -08:00
Makefile.postlink MIPS: fix indentation of the 'RELOCS' message 2020-01-20 15:37:30 -08:00