Matt Turner 6858e3a71c linux-user/xtensa: save/restore FP registers across signal delivery ...

Add support for saving and restoring f0-f15 across signal delivery.
The target_xtensa_xtregs_fp struct carries 32-bit f-regs for cores
with XTENSA_OPTION_FP_COPROCESSOR; target_xtensa_xtregs_dfp carries
64-bit f-regs for cores with XTENSA_OPTION_DFP_COPROCESSOR.

Lock the xtregs region via lock_user before reading on sigreturn,
since sc_xtregs is a user-space pointer that may lie outside the
locked sigframe.

Signed-off-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Helge Deller <deller@gmx.de>

2026-06-12 17:47:27 +02:00

..

cpu_loop.c

linux-user: make syscall emulation interruptible

2026-03-05 10:54:09 -08:00

elfload.c

linux-user/xtensa: Expand target_elf_gregset_t

2025-08-30 07:04:04 +10:00

meson.build

meson: linux-user

2020-08-21 06:30:38 -04:00

signal.c

linux-user/xtensa: save/restore FP registers across signal delivery

2026-06-12 17:47:27 +02:00

sockbits.h

…

syscall.tbl

Merge tag 'pull-tcg-20240922' of https://gitlab.com/rth7680/qemu into staging

2024-09-27 10:32:29 +01:00

syscallhdr.sh

license: Update deprecated SPDX tag GPL-2.0 to GPL-2.0-only

2024-09-20 10:11:59 +03:00

target_cpu.h

linux-user: Introduce cpu_clone_regs_parent

2019-11-06 13:43:25 +01:00

target_elf.h

linux-user: Standardize on ELF_MACHINE not ELF_ARCH

2025-08-30 07:04:04 +10:00

target_errno_defs.h

linux-user: Extract target errno to 'target_errno_defs.h'

2021-07-12 21:53:35 +02:00

target_fcntl.h

…

target_flat.h

Supply missing header guards

2019-06-12 13:20:21 +02:00

target_mman.h

linux-user: Define ELF_ET_DYN_BASE in $guest/target_mman.h

2023-08-08 13:27:15 -07:00

target_prctl.h

linux-user: Split out do_prctl and subroutines

2022-01-06 11:40:52 +01:00

target_proc.h

linux-user: Split out cpu/target_proc.h

2023-09-01 13:33:09 -07:00

target_ptrace.h

linux-user/xtensa: Create target_ptrace.h

2025-08-30 07:04:04 +10:00

target_resource.h

linux-user: Move generic TARGET_RLIMIT* definitions to generic/target_resource.h

2022-02-01 08:01:38 +01:00

target_signal.h

linux-user: Move TARGET_SA_RESTORER out of generic/signal.h

2025-02-18 08:29:03 -08:00

target_structs.h

Replace TARGET_WORDS_BIGENDIAN

2022-04-06 10:50:37 +02:00

target_syscall.h

linux-user/xtensa: Create target_ptrace.h

2025-08-30 07:04:04 +10:00

termbits.h

linux-user: Add missing termbits types and values definitions

2020-08-27 12:29:50 +02:00