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
..
cache.c	LoongArch: Refactor cache probe and flush methods	2022-10-12 16:36:14 +08:00
extable.c	LoongArch: BPF: Add BPF exception tables	2022-12-14 08:36:11 +08:00
fault.c	LoongArch: mm: Avoid unnecessary page fault retires on shared memory types	2022-08-25 19:34:59 +08:00
hugetlbpage.c
init.c	mm/sparse-vmemmap: generalise vmemmap_populate_hugepages()	2022-12-11 18:12:12 -08:00
ioremap.c
maccess.c
Makefile
mmap.c	LoongArch: Support access filter to /dev/mem interface	2022-10-12 16:36:14 +08:00
page.S	LoongArch: Re-tab the assembly files	2022-07-29 18:22:32 +08:00
pgtable.c	MIPS&LoongArch&NIOS2: adjust prototypes of p?d_init()	2022-12-11 18:12:11 -08:00
tlb.c	LoongArch: Add generic ex-handler unwind in prologue unwinder	2023-01-17 11:42:16 +08:00
tlbex.S	LoongArch: mm: Fix huge page entry update for virtual machine	2022-12-08 14:59:15 +08:00