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linux/arch/arm64/kernel
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Vincenzo Frascino 1578e5d031 arm64: vdso: Add -fasynchronous-unwind-tables to cflags 
On arm64 linux gcc uses -fasynchronous-unwind-tables -funwind-tables
by default since gcc-8, so now the de facto platform ABI is to allow
unwinding from async signal handlers.

However on bare metal targets (aarch64-none-elf), and on old gcc,
async and sync unwind tables are not enabled by default to avoid
runtime memory costs.

This means if linux is built with a baremetal toolchain the vdso.so
may not have unwind tables which breaks the gcc platform ABI guarantee
in userspace.

Add -fasynchronous-unwind-tables explicitly to the vgettimeofday.o
cflags to address the ABI change.

Fixes: 28b1a824a4f4 ("arm64: vdso: Substitute gettimeofday() with C implementation")
Cc: Will Deacon <will@kernel.org>
Reported-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-04-30 18:35:32 +01:00
..
probes
arm64: remove __exception annotations
2019-10-28 11:22:38 +00:00
vdso
arm64: vdso: Add -fasynchronous-unwind-tables to cflags
2020-04-30 18:35:32 +01:00
vdso32
SPDX patches for 5.7-rc1.
2020-04-03 13:12:26 -07:00
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
acpi_numa.c
acpi: Create subtable parsing infrastructure
2019-04-04 18:41:12 +02:00
acpi_parking_protocol.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
acpi.c
arm64: acpi: fix DAIF manipulation with pNMI
2020-01-22 14:41:22 +00:00
alternative.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
armv8_deprecated.c
arm64: armv8_deprecated: Fix undef_hook mask for thumb setend
2020-04-08 18:19:20 +01:00
asm-offsets.c
arm64: initialize and switch ptrauth kernel keys
2020-03-18 09:50:20 +00:00
cacheinfo.c
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
cpu_errata.c
arm64: Mark call_smc_arch_workaround_1 as __maybe_unused
2020-03-11 12:01:59 +00:00
cpu_ops.c
arm64: Introduce get_cpu_ops() helper function
2020-03-24 17:24:19 +00:00
cpu-reset.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
cpu-reset.S
arm64: use mov_q instead of literal ldr
2020-03-24 11:48:24 +00:00
cpufeature.c
Merge branch 'for-next/kernel-ptrauth' into for-next/core
2020-03-25 11:11:08 +00:00
cpuidle.c
arm64: Introduce get_cpu_ops() helper function
2020-03-24 17:24:19 +00:00
cpuinfo.c
Merge branch 'for-next/rng' into for-next/core
2020-01-22 11:38:53 +00:00
crash_core.c
arm64: kernel: arch_crash_save_vmcoreinfo() should depend on CONFIG_CRASH_CORE
2018-09-11 11:08:49 +01:00
crash_dump.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
debug-monitors.c
arm64: Remove unneeded rcu_read_lock from debug handlers
2019-08-01 15:00:27 +01:00
efi-entry.S
efi/arm64: Clean EFI stub exit code from cache instead of avoiding it
2020-02-29 10:16:57 +01:00
efi-header.S
efi/libstub: Introduce symbolic constants for the stub major/minor version
2020-02-23 21:59:42 +01:00
efi-rt-wrapper.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
efi.c
mm/pgtable: drop pgtable_t variable from pte_fn_t functions
2019-07-12 11:05:46 -07:00
entry-common.c
arm64: entry: unmask IRQ in el0_sp()
2020-03-11 14:34:28 +00:00
entry-fpsimd.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
entry-ftrace.S
arm64: entry-ftrace.S: Fix missing argument for CONFIG_FUNCTION_GRAPH_TRACER=y
2020-03-11 11:06:48 +00:00
entry.S
Merge branch 'for-next/kernel-ptrauth' into for-next/core
2020-03-25 11:11:08 +00:00
fpsimd.c
arm64: nofpsmid: Handle TIF_FOREIGN_FPSTATE flag cleanly
2020-01-14 17:11:53 +00:00
ftrace.c
arm64: ftrace: minimize ifdeffery
2019-11-06 14:17:36 +00:00
head.S
Merge branch 'for-next/kernel-ptrauth' into for-next/core
2020-03-25 11:11:08 +00:00
hibernate-asm.S
arm64: remove gratuitious/stray .ltorg stanzas
2020-03-04 15:47:47 +00:00
hibernate.c
arm64: hibernate: Use bringup_hibernate_cpu()
2020-03-25 12:59:34 +01:00
hw_breakpoint.c
Printk changes for 5.5
2019-11-25 19:40:40 -08:00
hyp-stub.S
arm64: use mov_q instead of literal ldr
2020-03-24 11:48:24 +00:00
image-vars.h
efi/arm64: Clean EFI stub exit code from cache instead of avoiding it
2020-02-29 10:16:57 +01:00
image.h
arm64/efi: Move variable assignments after SECTIONS
2019-08-14 17:18:15 +01:00
insn.c
arm64: insn: consistently handle exit text
2019-12-04 11:32:20 +00:00
io.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
irq.c
arm64 updates for 5.3:
2019-07-08 09:54:55 -07:00
jump_label.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kaslr.c
arm64: Fix CONFIG_ARCH_RANDOM=n build
2020-02-11 09:47:01 +00:00
kexec_image.c
arm64: kexec_file: add crash dump support
2020-01-08 17:05:23 +00:00
kgdb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
kuser32.S
docs: arm: convert docs to ReST and rename to *.rst
2019-07-15 09:20:24 -03:00
machine_kexec_file.c
arm64: kexec_file: Fixed code style.
2020-03-17 18:23:20 +00:00
machine_kexec.c
Revert "arm64: kexec: make dtb_mem always enabled"
2020-01-10 16:00:50 +00:00
Makefile
arm64: efi: add efi-entry.o to targets instead of extra-$(CONFIG_EFI)
2020-03-09 18:13:25 +00:00
module-plts.c
arm64: implement ftrace with regs
2019-11-06 14:17:35 +00:00
module.c
arm64: implement ftrace with regs
2019-11-06 14:17:35 +00:00
module.lds
arm64: ftrace: emit ftrace-mod.o contents through code
2017-12-01 13:04:59 +00:00
paravirt.c
arm64: Retrieve stolen time as paravirtualized guest
2019-10-21 19:20:31 +01:00
pci.c
pci-v5.3-changes
2019-07-15 20:44:49 -07:00
perf_callchain.c
arm64: stacktrace: Factor out backtrace initialisation
2019-07-22 11:44:08 +01:00
perf_event.c
arm64: perf: Add support for ARMv8.5-PMU 64-bit counters
2020-03-17 22:50:30 +00:00
perf_regs.c
compat: Move compat_timespec/ timeval to compat_time.h
2018-04-19 13:29:54 +02:00
pointer_auth.c
arm64: install user ptrauth keys at kernel exit time
2020-03-18 09:50:19 +00:00
process.c
arm64 updates for 5.7:
2020-03-31 10:05:01 -07:00
psci.c
arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill()
2019-10-25 16:29:11 +01:00
ptrace.c
arm64: rename ptrauth key structures to be user-specific
2020-03-18 09:50:18 +00:00
reloc_test_core.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
reloc_test_syms.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
relocate_kernel.S
arm64: use mov_q instead of literal ldr
2020-03-24 11:48:24 +00:00
return_address.c
arm64: unwind: Prohibit probing on return_address()
2019-08-01 15:00:26 +01:00
sdei.c
firmware: arm_sdei: use common SMCCC_CONDUIT_*
2019-10-14 10:55:14 +01:00
setup.c
arm64: Introduce get_cpu_ops() helper function
2020-03-24 17:24:19 +00:00
signal32.c
arm64: signal: nofpsimd: Handle fp/simd context for signal frames
2020-01-14 17:11:46 +00:00
signal.c
arm64: signal: nofpsimd: Handle fp/simd context for signal frames
2020-01-14 17:11:46 +00:00
sigreturn32.S
arm64: compat: Split kuser32
2019-04-23 18:01:57 +01:00
sleep.S
arm64: ptrauth: Add bootup/runtime flags for __cpu_setup
2020-03-18 09:50:19 +00:00
smccc-call.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
smp_spin_table.c
arm64: prefer __section from compiler_attributes.h
2019-08-13 18:32:15 +01:00
smp.c
arm64 updates for 5.7:
2020-03-31 10:05:01 -07:00
ssbd.c
Return ENODEV when the selected speculation misfeature is unsupported
2020-01-08 17:27:41 +00:00
stacktrace.c
arm64: unwind: strip PAC from kernel addresses
2020-03-18 09:50:20 +00:00
suspend.c
arm64: mm: Support Common Not Private translations
2018-09-18 12:02:27 +01:00
sys32.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 452
2019-06-19 17:09:08 +02:00
sys_compat.c
arm64: Silence clang warning on mismatched value/register sizes
2019-10-28 09:13:21 +00:00
sys.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
syscall.c
arm64: entry: cleanup el0 svc handler naming
2020-01-17 13:22:14 +00:00
time.c
arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
2020-02-12 17:26:38 +00:00
topology.c
arm64: use activity monitors for frequency invariance
2020-03-06 16:02:50 +00:00
trace-events-emulation.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
traps.c
sched/rt, arm64: Use CONFIG_PREEMPTION
2019-12-08 14:37:32 +01:00
vdso.c
arm64: vdso: don't free unallocated pages
2020-04-15 11:13:16 +01:00
vmlinux.lds.S
arm64 updates for 5.5:
2019-12-06 14:18:01 -08:00