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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
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
Merge tag 'loongarch-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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_regs.h
LoongArch: Add exception/interrupt handling
2022-06-03 20:09:28 +08:00
irq.h
Merge tags 'acpi-6.2-rc1' and 'irq-core-2022-12-10' into loongarch-next
2022-12-13 19:19:41 +08:00
irqflags.h
LoongArch: Remove useless header compiler.h
2022-07-29 18:22:32 +08:00
Kbuild
Merge tag 'loongarch-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
2022-10-12 10:35:20 -07:00
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_context.h
LoongArch: Add process management
2022-06-03 20:09:28 +08:00
mmu.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
Merge tag 'mm-stable-2022-12-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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_types.h
LoongArch: Add qspinlock support
2022-10-12 16:36:14 +08:00
spinlock.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