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656f9aec07
linux/arch/loongarch/kernel
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Huacai Chen 656f9aec07 LoongArch: Ensure FP/SIMD registers in the core dump file is up to date 
This is a port of commit 379eb01c21 ("riscv: Ensure the value
of FP registers in the core dump file is up to date").

The values of FP/SIMD registers in the core dump file come from the
thread.fpu. However, kernel saves the FP/SIMD registers only before
scheduling out the process. If no process switch happens during the
exception handling, kernel will not have a chance to save the latest
values of FP/SIMD registers. So it may cause their values in the core
dump file incorrect. To solve this problem, force fpr_get()/simd_get()
to save the FP/SIMD registers into the thread.fpu if the target task
equals the current task.

Cc: stable@vger.kernel.org
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
2023-08-26 22:21:57 +08:00
..
.gitignore
access-helper.h LoongArch: Add exception/interrupt handling 2022-06-03 20:09:28 +08:00
acpi.c LoongArch: Add SMT (Simultaneous Multi-Threading) support 2023-06-29 20:58:43 +08:00
alternative.c LoongArch: Use common function sign_extend64() 2023-01-17 11:42:16 +08:00
asm-offsets.c LoongArch: ftrace: Enable HAVE_FUNCTION_GRAPH_RETVAL 2023-06-20 18:38:38 -04:00
cacheinfo.c LoongArch: Refactor cache probe and flush methods 2022-10-12 16:36:14 +08:00
cpu-probe.c LoongArch: Introduce hardware page table walker 2023-06-29 20:58:44 +08:00
crash_dump.c LoongArch: Add kdump support 2022-10-12 16:36:19 +08:00
dma.c LoongArch: Use acpi_arch_dma_setup() and remove ARCH_HAS_PHYS_TO_DMA 2022-09-24 18:39:21 +02:00
efi-header.S LoongArch: Calculate various sizes in the linker script 2023-06-29 20:58:42 +08:00
efi.c LoongArch changes for v6.2 2022-12-19 08:23:27 -06:00
elf.c LoongArch: Add ELF and module support 2022-06-03 20:09:28 +08:00
entry.S LoongArch: Mark some assembler symbols as non-kprobe-able 2023-02-25 22:12:17 +08:00
env.c LoongArch: Add FDT booting support from efi system table 2022-12-14 08:41:53 +08:00
fpu.S LoongArch: Replace #include <asm/export.h> with #include <linux/export.h> 2023-08-25 23:40:26 +08:00
ftrace_dyn.c LoongArch: ftrace: Add direct call support 2023-05-01 17:19:53 +08:00
ftrace.c LoongArch/ftrace: Add basic support 2022-12-14 08:41:53 +08:00
genex.S LoongArch: Relay BCE exceptions to userland as SIGSEGV with si_code=SEGV_BNDERR 2023-05-01 17:19:27 +08:00
head.S LoongArch: Calculate various sizes in the linker script 2023-06-29 20:58:42 +08:00
hw_breakpoint.c LoongArch: Avoid uninitialized alignment_mask 2023-06-15 14:35:52 +08:00
idle.c arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled 2023-01-13 11:48:15 +01:00
image-vars.h efi: loongarch: Drop exports of unused string routines 2022-11-09 12:42:02 +01:00
inst.c LoongArch: Add larch_insn_gen_break() to generate break insns 2023-06-29 20:58:44 +08:00
io.c LoongArch: Add misc common routines 2022-06-03 20:09:28 +08:00
irq.c LoongArch: Clean up the architectural interrupt definitions 2023-05-01 17:19:10 +08:00
jump_label.c LoongArch: Add jump-label implementation 2023-06-29 20:58:44 +08:00
kfpu.c LoongArch: Provide kernel fpu functions 2023-05-01 17:19:27 +08:00
kprobes.c LoongArch: Use larch_insn_gen_break() for kprobes 2023-06-29 20:58:44 +08:00
machine_kexec.c LoongArch: Add kdump support 2022-10-12 16:36:19 +08:00
Makefile LoongArch: Add uprobes support 2023-06-29 20:58:44 +08:00
mcount_dyn.S LoongArch: Remove unneeded #include <asm/export.h> 2023-08-25 23:40:26 +08:00
mcount.S LoongArch: Replace #include <asm/export.h> with #include <linux/export.h> 2023-08-25 23:40:26 +08:00
mem.c LoongArch: Add kdump support 2022-10-12 16:36:19 +08:00
module-sections.c LoongArch: modules/ftrace: Initialize PLT at load time 2022-12-14 08:41:54 +08:00
module.c LoongArch: modules/ftrace: Initialize PLT at load time 2022-12-14 08:41:54 +08:00
numa.c LoongArch changes for v6.2 2022-12-19 08:23:27 -06:00
perf_event.c LoongArch: Fix perf event id calculation 2023-06-15 14:35:52 +08:00
perf_regs.c LoongArch: Add perf events support 2022-10-12 16:36:14 +08:00
proc.c LoongArch: Introduce hardware page table walker 2023-06-29 20:58:44 +08:00
process.c LoongArch: Put the body of play_dead() into arch_cpu_idle_dead() 2023-08-25 23:40:38 +08:00
ptrace.c LoongArch: Ensure FP/SIMD registers in the core dump file is up to date 2023-08-26 22:21:57 +08:00
relocate_kernel.S LoongArch: Add kdump support 2022-10-12 16:36:19 +08:00
relocate.c LoongArch: Add support for kernel address space layout randomization (KASLR) 2023-02-25 22:12:17 +08:00
reset.c LoongArch: Add hibernation (ACPI S4) support 2022-12-14 08:41:53 +08:00
rethook_trampoline.S LoongArch: Replace kretprobe with rethook 2023-06-29 20:58:44 +08:00
rethook.c LoongArch: Replace kretprobe with rethook 2023-06-29 20:58:44 +08:00
rethook.h LoongArch: Replace kretprobe with rethook 2023-06-29 20:58:44 +08:00
setup.c LoongArch: Fix CMDLINE_EXTEND and CMDLINE_BOOTLOADER handling 2023-07-28 10:30:42 +08:00
signal.c LoongArch: Add vector extensions support 2023-06-29 20:58:43 +08:00
smp.c LoongArch: Put the body of play_dead() into arch_cpu_idle_dead() 2023-08-25 23:40:38 +08:00
stacktrace.c LoongArch: Check unwind_error() in arch_stack_walk() 2023-04-19 12:07:27 +08:00
switch.S LoongArch: Add basic STACKPROTECTOR support 2022-12-14 08:41:53 +08:00
syscall.c LoongArch: Add system call support 2022-06-03 20:09:28 +08:00
sysrq.c LoongArch: Add SysRq-x (TLB Dump) support 2022-10-12 16:36:14 +08:00
time.c loongarch: Provide noinstr sched_clock_read() 2023-06-05 21:11:05 +02:00
topology.c LoongArch: Do not create sysfs control file for io master CPUs 2022-10-12 16:36:08 +08:00
traps.c LoongArch: Return earlier in die() if notify_die() returns NOTIFY_STOP 2023-08-25 23:40:26 +08:00
unaligned.c LoongArch: Delete unnecessary debugfs checking 2023-06-29 20:58:42 +08:00
unwind_guess.c LoongArch: Strip guess unwinder out from prologue unwinder 2023-01-17 11:42:16 +08:00
unwind_prologue.c LoongArch: Check unwind_error() in arch_stack_walk() 2023-04-19 12:07:27 +08:00
unwind.c LoongArch: Check unwind_error() in arch_stack_walk() 2023-04-19 12:07:27 +08:00
uprobes.c LoongArch: Add uprobes support 2023-06-29 20:58:44 +08:00
vdso.c LoongArch: Add support to clone a time namespace 2023-06-29 20:58:43 +08:00
vmlinux.lds.S LoongArch: Calculate various sizes in the linker script 2023-06-29 20:58:42 +08:00