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mirror-linux/arch/loongarch/include/asm
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Jinyang He dc74a9e8a8 LoongArch: Add generic ex-handler unwind in prologue unwinder 
When exception is triggered, code flow go handle_\exception in some
cases. One of stackframe in this case as follows,

high -> +-------+
        | REGS  |  <- a pt_regs
        |       |
        |       |  <- ex trigger
        | REGS  |  <- ex pt_regs   <-+
        |       |                    |
        |       |                    |
low  -> +-------+           ->unwind-+

When unwinder unwinds to handler_\exception it cannot go on prologue
analysis. Because it is an asynchronous code flow, we should get the
next frame PC from regs->csr_era rather than regs->regs[1]. At init time
we copy the handlers to eentry and also copy them to NUMA-affine memory
named pcpu_handlers if NUMA is enabled. Thus, unwinder cannot unwind
normally. To solve this, we try to give some hints in handler_\exception
and fixup unwinders in unwind_next_frame().

Reported-by: Qing Zhang <zhangqing@loongson.cn>
Signed-off-by: Jinyang He <hejinyang@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
 		2023-01-17 11:42:16 +08:00
..
vdso LoongArch: Add vDSO syscall __vdso_getcpu() 2022-08-12 13:10:11 +08:00
Kbuild LoongArch changes for v6.1 2022-10-12 10:35:20 -07:00
acenv.h LoongArch: Add boot and setup routines 2022-06-03 20:09:28 +08:00
acpi.h LoongArch: Add suspend (ACPI S3) support 2022-12-14 08:41:53 +08:00
addrspace.h LoongArch: Cleanup headers to avoid circular dependency 2022-08-25 19:34:59 +08:00
alternative-asm.h LoongArch: Add alternative runtime patching mechanism 2022-12-14 08:36:11 +08:00
alternative.h LoongArch: Add alternative runtime patching mechanism 2022-12-14 08:36:11 +08:00
asm-extable.h LoongArch: BPF: Add BPF exception tables 2022-12-14 08:36:11 +08:00
asm-offsets.h LoongArch: Add misc common routines 2022-06-03 20:09:28 +08:00
asm-prototypes.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
asm.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
asmmacro.h LoongArch: Remove several syntactic sugar macros for branches 2022-07-29 18:22:32 +08:00
atomic.h LoongArch: Remove useless header compiler.h 2022-07-29 18:22:32 +08:00
barrier.h LoongArch: Use ABI names of registers where appropriate 2022-07-29 18:22:32 +08:00
bitops.h LoongArch: Add atomic/locking headers 2022-06-03 20:09:28 +08:00
bitrev.h LoongArch: Add atomic/locking headers 2022-06-03 20:09:28 +08:00
bootinfo.h LoongArch: Add suspend (ACPI S3) support 2022-12-14 08:41:53 +08:00
branch.h LoongArch: Make compute_return_era() return void 2022-06-25 18:06:07 +08:00
bug.h LoongArch: Use generic BUG() handler 2022-10-12 16:36:19 +08:00
bugs.h LoongArch: Add alternative runtime patching mechanism 2022-12-14 08:36:11 +08:00
cache.h LoongArch: Add memory management 2022-06-03 20:09:28 +08:00
cacheflush.h LoongArch: Refactor cache probe and flush methods 2022-10-12 16:36:14 +08:00
cacheops.h LoongArch: Refactor cache probe and flush methods 2022-10-12 16:36:14 +08:00
clocksource.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
cmpxchg.h LoongArch: Mark __xchg() and __cmpxchg() as __always_inline 2022-10-12 16:36:08 +08:00
cpu-features.h LoongArch: Refactor cache probe and flush methods 2022-10-12 16:36:14 +08:00
cpu-info.h LoongArch: Refactor cache probe and flush methods 2022-10-12 16:36:14 +08:00
cpu.h
…
cpufeature.h LoongArch: Add ELF and module support 2022-06-03 20:09:28 +08:00
delay.h LoongArch: Add some library functions 2022-06-03 20:09:28 +08:00
dma-direct.h LoongArch: Add Non-Uniform Memory Access (NUMA) support 2022-06-03 20:09:29 +08:00
dma.h LoongArch: Add PCI controller support 2022-08-12 13:10:11 +08:00
dmi.h LoongArch: Add boot and setup routines 2022-06-03 20:09:28 +08:00
efi.h LoongArch changes for v6.2 2022-12-19 08:23:27 -06:00
elf.h LoongArch: Define ELF relocation types added in ABIv2.0 2022-10-12 16:36:14 +08:00
entry-common.h LoongArch: Add exception/interrupt handling 2022-06-03 20:09:28 +08:00
exec.h LoongArch: Add ELF and module support 2022-06-03 20:09:28 +08:00
extable.h LoongArch: BPF: Add BPF exception tables 2022-12-14 08:36:11 +08:00
fb.h LoongArch: Add misc common routines 2022-06-03 20:09:28 +08:00
fixmap.h LoongArch: Use TLB for ioremap() 2022-10-12 16:36:14 +08:00
fpregdef.h LoongArch: Remove obsolete mentions of vcsr 2022-07-07 17:41:01 +08:00
fpu.h LoongArch: Add process management 2022-06-03 20:09:28 +08:00
ftrace.h LoongArch: Use correct sp value to get graph addr in stack unwinders 2023-01-17 11:42:16 +08:00
futex.h LoongArch: extable: Add a dedicated uaccess handler 2022-12-14 08:36:11 +08:00
gpr-num.h LoongArch: extable: Add a dedicated uaccess handler 2022-12-14 08:36:11 +08:00
hardirq.h LoongArch: Fix the !CONFIG_SMP build 2022-06-08 11:00:40 +08:00
hugetlb.h LoongArch: Add memory management 2022-06-03 20:09:28 +08:00
hw_irq.h LoongArch: Add exception/interrupt handling 2022-06-03 20:09:28 +08:00
idle.h LoongArch: Add process management 2022-06-03 20:09:28 +08:00
inst.h LoongArch: Simplify larch_insn_gen_xxx implementation 2023-01-17 11:42:16 +08:00
io.h LoongArch: Use TLB for ioremap() 2022-10-12 16:36:14 +08:00
irq.h ACPI updates for 6.2-rc1 2022-12-13 19:19:41 +08:00
irq_regs.h LoongArch: Add exception/interrupt handling 2022-06-03 20:09:28 +08:00
irqflags.h LoongArch: Remove useless header compiler.h 2022-07-29 18:22:32 +08:00
kdebug.h LoongArch: Add exception/interrupt handling 2022-06-03 20:09:28 +08:00
kexec.h LoongArch: Add kexec support 2022-10-12 16:36:19 +08:00
linkage.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
local.h LoongArch: Remove useless header compiler.h 2022-07-29 18:22:32 +08:00
loongarch.h LoongArch: Refactor cache probe and flush methods 2022-10-12 16:36:14 +08:00
loongson.h LoongArch: Add suspend (ACPI S3) support 2022-12-14 08:41:53 +08:00
mmu.h LoongArch: Add process management 2022-06-03 20:09:28 +08:00
mmu_context.h LoongArch: Add process management 2022-06-03 20:09:28 +08:00
mmzone.h LoongArch: Add Non-Uniform Memory Access (NUMA) support 2022-06-03 20:09:29 +08:00
module.h LoongArch: modules/ftrace: Initialize PLT at load time 2022-12-14 08:41:54 +08:00
module.lds.h LoongArch: modules/ftrace: Initialize PLT at load time 2022-12-14 08:41:54 +08:00
numa.h LoongArch: Add Non-Uniform Memory Access (NUMA) support 2022-06-03 20:09:29 +08:00
page.h LoongArch: Cleanup headers to avoid circular dependency 2022-08-25 19:34:59 +08:00
pci.h LoongArch: Add PCI controller support 2022-08-12 13:10:11 +08:00
percpu.h LoongArch: Adjust symbol addressing for AS_HAS_EXPLICIT_RELOCS 2022-10-12 16:36:08 +08:00
perf_event.h LoongArch: Add perf events support 2022-10-12 16:36:14 +08:00
pgalloc.h MIPS&LoongArch&NIOS2: adjust prototypes of p?d_init() 2022-12-11 18:12:11 -08:00
pgtable-bits.h LoongArch: Use TLB for ioremap() 2022-10-12 16:36:14 +08:00
pgtable.h MM patches for 6.2-rc1. 2022-12-13 19:29:45 -08:00
prefetch.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
processor.h LoongArch: Remove unused kernel stack padding 2022-10-29 16:29:31 +08:00
ptrace.h LoongArch: Use flexible-array member instead of zero-length array 2022-10-29 16:29:31 +08:00
regdef.h
…
seccomp.h LoongArch: Add system call support 2022-06-03 20:09:28 +08:00
serial.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
setup.h LoongArch: Add FDT booting support from efi system table 2022-12-14 08:41:53 +08:00
shmparam.h LoongArch: Add memory management 2022-06-03 20:09:28 +08:00
smp.h LoongArch: Export symbol for function smp_send_reschedule() 2022-12-08 14:59:15 +08:00
sparsemem.h LoongArch: add sparse memory vmemmap support 2022-12-11 18:12:12 -08:00
spinlock.h LoongArch: Add qspinlock support 2022-10-12 16:36:14 +08:00
spinlock_types.h LoongArch: Add qspinlock support 2022-10-12 16:36:14 +08:00
stackframe.h LoongArch: Add multi-processor (SMP) support 2022-06-03 20:09:29 +08:00
stackprotector.h LoongArch: Add basic STACKPROTECTOR support 2022-12-14 08:41:53 +08:00
stacktrace.h LoongArch: Add USER_STACKTRACE support 2022-08-12 13:10:11 +08:00
string.h LoongArch: Use alternative to optimize libraries 2022-12-14 08:36:11 +08:00
switch_to.h LoongArch: Add STACKTRACE support 2022-08-12 13:10:11 +08:00
syscall.h LoongArch: Add system call support 2022-06-03 20:09:28 +08:00
thread_info.h LoongArch: Add unaligned access support 2022-12-14 08:36:11 +08:00
time.h LoongArch: Add suspend (ACPI S3) support 2022-12-14 08:41:53 +08:00
timex.h LoongArch: Remove MIPS comment about cycle counter 2022-06-08 11:00:40 +08:00
tlb.h mmu_gather: Remove per arch tlb_{start,end}_vma() 2022-07-21 10:50:13 -07:00
tlbflush.h LoongArch: Add multi-processor (SMP) support 2022-06-03 20:09:29 +08:00
topology.h LoongArch: Add Non-Uniform Memory Access (NUMA) support 2022-06-03 20:09:29 +08:00
types.h LoongArch: Add other common headers 2022-06-03 20:09:28 +08:00
uaccess.h LoongArch: extable: Add a dedicated uaccess handler 2022-12-14 08:36:11 +08:00
unistd.h LoongArch: Add system call support 2022-06-03 20:09:28 +08:00
unwind.h LoongArch: Add generic ex-handler unwind in prologue unwinder 2023-01-17 11:42:16 +08:00
vdso.h LoongArch: Add vDSO syscall __vdso_getcpu() 2022-08-12 13:10:11 +08:00
vermagic.h LoongArch: Add ELF and module support 2022-06-03 20:09:28 +08:00
vmalloc.h LoongArch: Add memory management 2022-06-03 20:09:28 +08:00