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Nathan Huckleberry 35e1338bdd ARM: 8992/1: Fix unwind_frame for clang-built kernels 
commit b4d5ec9b39 upstream.

Since clang does not push pc and sp in function prologues, the current
implementation of unwind_frame does not work. By using the previous
frame's lr/fp instead of saved pc/sp we get valid unwinds on clang-built
kernels.

The bounds check on next frame pointer must be changed as well since
there are 8 less bytes between frames.

This fixes /proc/<pid>/stack.

Link: https://github.com/ClangBuiltLinux/linux/issues/912

Reported-by: Miles Chen <miles.chen@mediatek.com>
Tested-by: Miles Chen <miles.chen@mediatek.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-08-19 08:16:27 +02:00
..
boot
ARM: dts: sunxi: bananapi-m2-plus-v1.2: Fix CPU supply voltages
2020-08-19 08:15:57 +02:00
common
ARM: scoop: Use the right include
2019-09-03 22:09:46 +02:00
configs
scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled
2020-07-22 09:32:57 +02:00
crypto
crypto: arch/nhpoly1305 - process in explicit 4k chunks
2020-05-14 07:58:25 +02:00
include
ARM: percpu.h: fix build error
2020-08-07 09:34:01 +02:00
kernel
ARM: 8992/1: Fix unwind_frame for clang-built kernels
2020-08-19 08:16:27 +02:00
kvm
kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)
2019-09-04 23:12:50 +09:00
lib
ARM: 8958/1: rename missed uaccess .fixup section
2020-03-21 08:11:58 +01:00
mach-actions
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mach-alpine
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mach-artpec
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mach-asm9260
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mach-aspeed
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2019-09-30 10:04:28 -07:00
mach-at91
ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
2020-08-19 08:15:56 +02:00
mach-axxia
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mach-bcm
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mach-berlin
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mach-clps711x
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mach-cns3xxx
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mach-davinci
ARM: davinci: select CONFIG_RESET_CONTROLLER
2020-01-23 08:22:32 +01:00
mach-digicolor
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mach-dove
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mach-ebsa110
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mach-efm32
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mach-ep93xx
Merge branch 'spi-5.4' into spi-next
2019-09-15 10:32:06 +01:00
mach-exynos
ARM: exynos: MCPM: Restore big.LITTLE cpuidle support
2020-08-19 08:15:55 +02:00
mach-footbridge
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mach-gemini
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mach-highbank
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mach-hisi
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mach-imx
ARM: imx6: add missing put_device() call in imx6q_suspend_init()
2020-07-16 08:16:35 +02:00
mach-integrator
ARM: integrator: Add some Kconfig selections
2020-06-24 17:50:10 +02:00
mach-iop32x
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mach-ixp4xx
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mach-keystone
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mach-lpc18xx
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mach-lpc32xx
ARM: lpc32xx: allow multiplatform build
2019-08-15 21:34:08 +02:00
mach-mediatek
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mach-meson
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mach-milbeaut
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mach-mmp
irqchip/mmp: Mask off interrupts from other cores
2019-08-30 15:23:30 +01:00
mach-moxart
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mach-mv78xx0
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mach-mvebu
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mach-mxs
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mach-nomadik
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mach-npcm
ARM: npcm: Bring back GPIOLIB support
2020-02-19 19:53:01 +01:00
mach-nspire
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mach-omap1
Merge branch 'asoc-5.3' into asoc-linus
2019-09-09 14:55:18 +01:00
mach-omap2
ARM: OMAP2+: use separate IOMMU pdata to fix DRA7 IPU1 boot
2020-07-22 09:32:56 +02:00
mach-orion5x
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mach-oxnas
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mach-picoxcell
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mach-prima2
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mach-pxa
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mach-qcom
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mach-rda
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mach-realview
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mach-rockchip
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mach-rpc
ARM: riscpc: Mark expected switch fall-through
2019-08-20 19:42:48 -05:00
mach-s3c24xx
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mach-s3c64xx
ARM: s3c64xx: squash samsung_usb_phy.h into setup-usb-phy.c
2019-08-21 19:50:40 +02:00
mach-s5pv210
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mach-sa1100
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mach-shmobile
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mach-socfpga
ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
2020-08-19 08:15:58 +02:00
mach-spear
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mach-sti
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mach-stm32
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mach-sunxi
ARM: sunxi: Fix CPU powerdown on A83T
2019-10-29 09:09:56 +01:00
mach-tango
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mach-tegra
ARM: tegra: Correct PL310 Auxiliary Control Register initialization
2020-06-22 09:31:22 +02:00
mach-u300
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mach-uniphier
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mach-ux500
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mach-versatile
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mach-vexpress
ARM: vexpress: Set-up shared OPP table instead of individual for each CPU
2020-01-12 12:21:17 +01:00
mach-vt8500
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mach-zx
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mach-zynq
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mm
ARM: 8978/1: mm: make act_mm() respect THREAD_SIZE
2020-06-22 09:30:56 +02:00
net
arm, bpf: Fix offset overflow for BPF_MEM BPF_DW
2020-04-23 10:36:16 +02:00
nwfpe
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oprofile
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plat-omap
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plat-orion
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plat-pxa
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plat-samsung
ARM: samsung: Fix system restart on S3C6410
2019-09-09 20:54:35 +02:00
plat-versatile
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probes
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tools
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vdso
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vfp
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xen
Merge tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
2019-10-04 11:13:09 -07:00
Kconfig
ARM: 8951/1: Fix Kexec compilation issue.
2020-02-24 08:36:57 +01:00
Kconfig-nommu
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Kconfig.debug
Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
2019-09-22 09:39:09 -07:00
Makefile
ARM: 8961/2: Fix Kbuild issue caused by per-task stack protector GCC plugin
2020-03-21 08:11:59 +01:00