Vincent Chen 379eb01c21 riscv: Ensure the value of FP registers in the core dump file is up to date ... The value of FP registers in the core dump file comes from the thread.fstate. However, kernel saves the FP registers to the thread.fstate only before scheduling out the process. If no process switch happens during the exception handling process, kernel will not have a chance to save the latest value of FP registers to thread.fstate. It will cause the value of FP registers in the core dump file may be incorrect. To solve this problem, this patch force lets kernel save the FP register into the thread.fstate if the target task_struct equals the current. Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Reviewed-by: Jisheng Zhang <jszhang@kernel.org> Fixes: b8c8a9590e ("RISC-V: Add FP register ptrace support for gdb.") Cc: stable@vger.kernel.org Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>		2021-08-24 20:54:10 -07:00
..
probes	RISC-V Patches for the 5.14 Merge Window, Part 1	2021-07-09 10:36:29 -07:00
vdso	riscv: vdso: fix and clean-up Makefile	2021-04-26 08:25:19 -07:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
Makefile	riscv: kexec: do not add '-mno-relax' flag if compiler doesn't support it	2021-08-12 07:16:52 -07:00
asm-offsets.c	riscv: Introduce structure that group all variables regarding kernel mapping	2021-07-05 18:04:00 -07:00
cacheinfo.c	riscv: cacheinfo: Fix using smp_processor_id() in preemptible	2021-01-12 20:25:32 -08:00
cpu-hotplug.c	RISC-V: Support cpu hotplug	2020-03-31 11:28:30 -07:00
cpu.c	RISC-V: Rename and move plic_find_hart_id() to arch directory	2020-06-09 19:11:20 -07:00
cpu_ops.c	treewide: Convert macro and uses of __section(foo) to __section("foo")	2020-10-25 14:51:49 -07:00
cpu_ops_sbi.c	RISC-V: Support cpu hotplug	2020-03-31 11:28:30 -07:00
cpu_ops_spinwait.c	RISC-V: Add cpu_ops and modify default booting method	2020-03-31 11:25:56 -07:00
cpufeature.c	riscv: Add __init section marker to some functions again	2021-05-29 13:39:27 -07:00
crash_dump.c	RISC-V: Add crash kernel support	2021-04-26 08:25:24 -07:00
crash_save_regs.S	RISC-V: Add kdump support	2021-04-26 08:25:23 -07:00
efi-header.S	RISC-V: Add PE/COFF header for EFI stub	2020-10-02 14:31:16 -07:00
efi.c	RISC-V: Add EFI runtime services	2020-10-02 14:31:28 -07:00
entry.S	riscv: add VMAP_STACK overflow detection	2021-07-06 12:11:38 -07:00
fpu.S	riscv: abstract out CSR names for supervisor vs machine mode	2019-11-05 09:20:42 -08:00
ftrace.c	riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT	2021-01-14 15:09:05 -08:00
head.S	riscv: Introduce structure that group all variables regarding kernel mapping	2021-07-05 18:04:00 -07:00
head.h	RISC-V: enable XIP	2021-04-26 08:31:28 -07:00
image-vars.h	arch/riscv:fix typo in a comment in arch/riscv/kernel/image-vars.h	2021-02-18 23:18:00 -08:00
irq.c	RISC-V: Remove do_IRQ() function	2020-06-09 19:11:24 -07:00
jump_label.c	riscv: Add jump-label implementation	2020-07-30 11:37:43 -07:00
kexec_relocate.S	riscv: Introduce structure that group all variables regarding kernel mapping	2021-07-05 18:04:00 -07:00
kgdb.c	riscv: Fix "no previous prototype" compile warning in kgdb.c file	2020-07-09 20:09:30 -07:00
machine_kexec.c	RISC-V Patches for the 5.14 Merge Window, Part 1	2021-07-09 10:36:29 -07:00
mcount-dyn.S	riscv: Using PATCHABLE_FUNCTION_ENTRY instead of MCOUNT	2021-01-14 15:09:05 -08:00
mcount.S	riscv: Workaround mcount name prior to clang-13	2021-04-26 08:25:01 -07:00
module-sections.c	riscv: add missing header file includes	2019-10-28 00:46:01 -07:00
module.c	riscv: module: Create module allocations without exec permissions	2021-04-26 08:25:15 -07:00
patch.c	riscv: Fixup compile error BUILD_BUG_ON failed	2021-01-14 15:09:01 -08:00
perf_callchain.c	riscv: Make stack walk callback consistent with generic code	2020-11-20 18:53:38 -08:00
perf_event.c	riscv: perf_event: Make some funciton static	2020-05-11 13:48:19 -07:00
perf_regs.c	perf/arch: Remove perf_sample_data::regs_user_copy	2020-11-09 18:12:34 +01:00
process.c	riscv: Turn has_fpu into a static key if FPU=y	2021-05-25 22:56:57 -07:00
ptrace.c	riscv: Ensure the value of FP registers in the core dump file is up to date	2021-08-24 20:54:10 -07:00
reset.c	riscv: cleanup the default power off implementation	2019-11-13 13:22:52 -08:00
riscv_ksyms.c	riscv: provide memmove implementation	2020-12-10 17:27:54 -08:00
sbi.c	RISC-V Patches for the 5.13 Merge Window, Part 1	2021-05-06 09:24:18 -07:00
setup.c	riscv: Fix a number of free'd resources in init_resources()	2021-08-20 10:15:51 -07:00
signal.c	riscv: Turn has_fpu into a static key if FPU=y	2021-05-25 22:56:57 -07:00
smp.c	RISC-V: Fix error code returned by riscv_hartid_to_cpuid()	2021-05-01 08:53:19 -07:00
smpboot.c	sched/core: Initialize the idle task with preemption disabled	2021-05-12 13:01:45 +02:00
soc.c	riscv: Fix builtin DTB handling	2021-01-07 19:00:50 -08:00
stacktrace.c	riscv: stacktrace: Fix NULL pointer dereference	2021-07-24 12:58:51 -07:00
sys_riscv.c	RISC-V: Don't allow write+exec only page mapping request in mmap	2020-06-18 17:28:53 -07:00
syscall_table.c	riscv: Constify sys_call_table	2021-04-26 08:25:09 -07:00
time.c	RISC-V Patches for the 5.13 Merge Window, Part 1	2021-05-06 09:24:18 -07:00
traps.c	RISC-V Patches for the 5.14 Merge Window, Part 1	2021-07-09 10:36:29 -07:00
traps_misaligned.c	riscv: Unaligned load/store handling for M_MODE	2020-04-03 10:45:33 -07:00
vdso.c	riscv: Mark some global variables __ro_after_init	2021-04-26 08:25:08 -07:00
vmlinux-xip.lds.S	RISC-V Patches for the 5.14 Merge Window, Part 1	2021-07-09 10:36:29 -07:00
vmlinux.lds.S	riscv: add VMAP_STACK overflow detection	2021-07-06 12:11:38 -07:00