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Masami Hiramatsu 7d341b2701 ARM: clang: Do not rely on lr register for stacktrace 
[ Upstream commit b3ea5d56f212ad81328c82454829a736197ebccc ]

Currently the stacktrace on clang compiled arm kernel uses the 'lr'
register to find the first frame address from pt_regs. However, that
is wrong after calling another function, because the 'lr' register
is used by 'bl' instruction and never be recovered.

As same as gcc arm kernel, directly use the frame pointer (r11) of
the pt_regs to find the first frame address.

Note that this fixes kretprobe stacktrace issue only with
CONFIG_UNWINDER_FRAME_POINTER=y. For the CONFIG_UNWINDER_ARM,
we need another fix.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-11-18 19:16:19 +01:00
..
.gitignore
.gitignore: add SPDX License Identifier
2020-03-25 11:50:48 +01:00
arch_timer.c
ARM: 8913/1: arch_timer: include <asm/arch_timer.h>
2019-10-27 21:14:43 +00:00
armksyms.c
crypto: lib/sha1 - remove unnecessary includes of linux/cryptohash.h
2020-05-08 15:32:17 +10:00
asm-offsets.c
ARM development updates for 5.15:
2021-09-09 13:25:49 -07:00
atags_compat.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
atags_parse.c
ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address
2020-10-27 12:10:59 +00:00
atags_proc.c
ARM: 8973/1: Add missing newline terminator to kernel message
2020-05-07 20:53:10 +01:00
atags.h
ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address
2020-10-27 12:10:59 +00:00
bios32.c
ARM/PCI: Remove unused fields from struct hw_pci
2020-09-18 22:39:09 +01:00
bugs.c
treewide: fix typos of SPDX-License-Identifier
2019-06-01 18:29:58 +02:00
cpuidle.c
treewide: Convert macro and uses of __section(foo) to __section("foo")
2020-10-25 14:51:49 -07:00
crash_dump.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
debug.S
ARM: 9005/1: debug: Select flow control for all debug UARTs
2020-09-15 14:35:28 +01:00
devtree.c
ARM: 9011/1: centralize phys-to-virt conversion of DT/ATAGS address
2020-10-27 12:10:59 +00:00
dma-isa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
dma.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
early_printk.c
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
elf.c
arm32/64/elf: Split READ_IMPLIES_EXEC from executable PT_GNU_STACK
2020-04-20 19:42:19 +02:00
entry-armv.S
ARM: ep93xx: remove MaverickCrunch support
2021-08-04 13:30:04 +02:00
entry-common.S
ARM: 9113/1: uaccess: remove set_fs() implementation
2021-08-20 11:39:27 +01:00
entry-ftrace.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
entry-header.S
ARM: uaccess: consolidate uaccess asm to asm/uaccess-asm.h
2020-05-03 17:30:24 +01:00
entry-v7m.S
printk: Userspace format indexing support
2021-07-19 11:57:48 +02:00
fiq.c
arm: fix the flush_icache_range arguments in set_fiq_handler
2020-06-08 11:05:57 -07:00
fiqasm.S
…
ftrace.c
ARM: 9079/1: ftrace: Add MODULE_PLTS support
2021-06-07 12:56:20 +01:00
head-common.S
Merge branch 'devel-stable' into for-next
2020-12-21 11:19:26 +00:00
head-inflate-data.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
head-nommu.S
ARM: 8914/1: NOMMU: Fix exc_ret for XIP
2019-10-10 22:23:20 +01:00
head.S
ARM: 9148/1: handle CONFIG_CPU_ENDIAN_BE32 in arch/arm/kernel/head.S
2021-10-25 13:11:34 +01:00
hibernate.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 194
2019-05-30 11:29:22 -07:00
hw_breakpoint.c
ARM: 9064/1: hw_breakpoint: Do not directly check the event's overflow_handler hook
2021-03-25 10:27:41 +00:00
hyp-stub.S
Merge branch 'devel-stable' into for-next
2020-12-21 11:19:26 +00:00
insn.c
ARM: 9078/1: Add warn suppress parameter to arm_gen_branch_link()
2021-06-07 12:56:20 +01:00
io.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
irq.c
genirq: Move non-irqdomain handle_domain_irq() handling into ARM's handle_IRQ()
2021-06-10 13:09:19 +01:00
isa.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
iwmmxt.h
ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler
2020-12-08 10:14:59 +00:00
iwmmxt.S
ARM: 9029/1: Make iwmmxt.S support Clang's integrated assembler
2020-12-08 10:14:59 +00:00
jump_label.c
jump_label: move 'asm goto' support test to Kconfig
2019-01-06 09:46:51 +09:00
kgdb.c
maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault
2020-06-17 10:57:41 -07:00
machine_kexec.c
ARM: 9060/1: kexec: Remove unused kexec_reinit callback
2021-03-09 10:25:35 +00:00
Makefile
ARM updates for 5.11:
2020-12-22 13:34:27 -08:00
module-plts.c
ARM: 9098/1: ftrace: MODULE_PLT: Fix build problem without DYNAMIC_FTRACE
2021-07-05 11:52:26 +01:00
module.c
ARM: module: add support for place relative relocations
2020-10-28 16:59:43 +01:00
opcodes.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
paravirt.c
x86/paravirt: Switch time pvops functions to use static_call()
2021-03-11 16:17:52 +01:00
patch.c
arm/patch: Fix !MMU compile
2020-02-11 12:56:27 +01:00
perf_callchain.c
Remove 'type' argument from access_ok() function
2019-01-03 18:57:57 -08:00
perf_event_v6.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_event_v7.c
arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode
2021-06-01 14:17:01 +01:00
perf_event_xscale.c
arm_pmu: Tidy up clear_event_idx call backs
2018-07-10 18:19:02 +01:00
perf_regs.c
perf/arch: Remove perf_sample_data::regs_user_copy
2020-11-09 18:12:34 +01:00
phys2virt.S
ARM: p2v: reduce p2v alignment requirement to 2 MiB
2020-10-28 16:59:43 +01:00
pj4-cp0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
process.c
ARM development updates for 5.15:
2021-09-09 13:25:49 -07:00
psci_smp.c
ARM: 8919/1: make unexported functions static
2019-10-31 16:58:52 +00:00
ptrace.c
ARM development updates for 5.15:
2021-09-09 13:25:49 -07:00
reboot.c
ARM: 9096/1: Remove arm_pm_restart()
2021-06-13 18:16:48 +01:00
reboot.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
relocate_kernel.S
ARM: kexec: fix oops after TLB are invalidated
2021-02-05 10:23:29 +00:00
return_address.c
ARM: 8918/2: only build return_address() if needed
2019-11-15 22:21:07 +00:00
setup.c
memblock: make memblock_find_in_range method private
2021-09-03 09:58:17 -07:00
signal.c
entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume()
2021-09-22 10:24:01 -04:00
signal.h
ARM: 8920/1: share get_signal_page from signal.c to process.c
2019-10-31 16:58:53 +00:00
sigreturn_codes.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
2019-05-30 11:26:41 -07:00
sleep.S
ARM: sleep.S: use PC-relative insn sequence for sleep_save_sp/mpidr_hash
2020-10-28 17:05:40 +01:00
smccc-call.S
ARM: 9075/1: kernel: Fix interrupted SMC calls
2021-04-18 19:15:14 +01:00
smp_scu.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
smp_tlb.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
smp_twd.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
smp.c
printk: remove NMI tracking
2021-07-26 15:09:44 +02:00
stacktrace.c
ARM: clang: Do not rely on lr register for stacktrace
2021-11-18 19:16:19 +01:00
suspend.c
ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend()
2021-03-25 10:27:42 +00:00
swp_emulate.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
sys_arm.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sys_oabi-compat.c
ARM: 9110/1: oabi-compat: fix oabi epoll sparse warning
2021-08-20 11:39:27 +01:00
tcm.c
ARM: 8925/1: tcm: include <asm/tcm.h> for missing declarations
2019-10-31 16:58:56 +00:00
thumbee.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333
2019-06-05 17:37:06 +02:00
time.c
ARM: rpc: use legacy_timer_tick
2020-10-30 21:57:05 +01:00
topology.c
ARM, sched/topology: Revert back to default scheduler topology
2020-08-19 10:49:47 +02:00
traps.c
ARM: 9125/1: fix incorrect use of get_kernel_nofault()
2021-10-19 10:37:34 +01:00
unwind.c
ARM: 9026/1: unwind: remove old check for GCC <= 4.2
2020-12-08 10:13:59 +00:00
v7m.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
vdso.c
mm: forbid splitting special mappings
2020-12-15 12:13:41 -08:00
vmlinux-xip.lds.S
ARM: 9141/1: only warn about XIP address when not compile testing
2021-10-19 10:39:50 +01:00
vmlinux.lds.S
ARM: 9088/1: Split KERNEL_OFFSET from PAGE_OFFSET
2021-06-13 18:16:40 +01:00
xscale-cp0.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00