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qemu-qemu-1/linux-user
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James Hilliard bd8820aa7b linux-user/mips, target/mips: honor MIPS_FIXADE for unaligned accesses 
Linux/MIPS enables software fixups for user-mode unaligned scalar
accesses by default through MIPS_FIXADE/TIF_FIXADE.  QEMU linux-user did
not model that ABI, so MIPS guests took fatal AdEL/AdES exceptions unless
translation was forced to use unaligned host accesses.

Key MIPS translation blocks on the linux-user unaligned policy, implement
sysmips(MIPS_FIXADE) to toggle that policy, and raise SIGBUS/BUS_ADRALN
when fixups are disabled.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20260520172313.23777-4-philmd@linaro.org>
2026-05-21 08:20:58 +02:00
..
aarch64
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
alpha
linux-user: Define SO_TIMESTAMP*_NEW and SO_RCVTIMEIO_NEW
2026-04-25 00:38:32 +02:00
arm
linux-user/arm/nwfpe: Use thread-local storage for qemufpa
2026-04-25 00:38:32 +02:00
generic
linux-user: Define SO_TIMESTAMP*_NEW and SO_RCVTIMEIO_NEW
2026-04-25 00:38:32 +02:00
hexagon
Hexagon (linux-user/hexagon) Identify Hexagon version in ELF file
2026-04-23 14:49:38 -07:00
hppa
linux-user: Define SO_TIMESTAMP*_NEW and SO_RCVTIMEIO_NEW
2026-04-25 00:38:32 +02:00
i386
linux-user/i386/signal.c: Correct definition of target_fpstate_32
2026-03-24 14:02:29 +00:00
include
buildsys: Remove MIPS TCG backend
2026-05-21 08:20:58 +02:00
loongarch64
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
m68k
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
microblaze
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
mips
linux-user/mips, target/mips: honor MIPS_FIXADE for unaligned accesses
2026-05-21 08:20:58 +02:00
mips64
linux-user/mips, target/mips: honor MIPS_FIXADE for unaligned accesses
2026-05-21 08:20:58 +02:00
or1k
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
ppc
linux-user/ppc: Fix ppc64 rt_sigframe stack offset
2026-04-25 00:38:32 +02:00
riscv
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
s390x
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
sh4
linux-user/sh4: Fix setup_sigtramp to match Linux kernel trampoline pattern
2026-05-19 15:40:38 +02:00
sparc
linux-user: Define SO_TIMESTAMP*_NEW and SO_RCVTIMEIO_NEW
2026-04-25 00:38:32 +02:00
x86_64
accel/tcg: Add clear_flags argument to page_set_flags
2025-10-14 07:30:39 -07:00
xtensa
linux-user: make syscall emulation interruptible
2026-03-05 10:54:09 -08:00
elfload.c
linux-user/mips: sync k0 TLS for EF_MIPS_MACH_OCTEON userlands
2026-04-25 00:38:32 +02:00
errnos.c.inc
linux-user: Simplify host <-> target errno conversion using macros
2021-07-12 21:53:35 +02:00
exit.c
accel/tcg: Move perf and debuginfo support to tcg/
2024-01-29 21:04:10 +10:00
fd-trans.c
linux-user: fix off-by-one in host_to_target_for_each_rtattr()
2026-04-25 00:38:32 +02:00
fd-trans.h
linux-user: assume inotify sycalls are always present
2026-03-16 13:50:17 +03:00
flat.h
linux-user/flatload.c: Remove unused bFLT shared-library and ZFLAT code
2024-04-25 10:21:06 +01:00
flatload.c
include/exec: Split out mmap-lock.h
2025-04-23 14:08:17 -07:00
gen-vdso-elfn.c.inc
linux-user: Create vdso_sigreturn_region_{start,end}
2025-09-23 16:17:59 -07:00
gen-vdso.c
linux-user: Create vdso_sigreturn_region_{start,end}
2025-09-23 16:17:59 -07:00
ioctls.h
linux-user: Add missing CDROM ioctls
2026-04-28 22:16:51 +02:00
linux_loop.h
linux-user: implement more loop ioctls
2021-11-29 14:54:17 +01:00
linuxload.c
linux-user: Create do_init_main_thread
2025-08-28 06:39:25 +10:00
loader.h
linux-user: Create vdso_sigreturn_region_{start,end}
2025-09-23 16:17:59 -07:00
main.c
linux-user: Fix AT_EXECFN in AUXV for symlinked programs
2026-05-19 15:37:33 +02:00
meson.build
target/or1k: Rename from openrisc
2026-02-09 20:51:52 +01:00
mmap.c
buildsys: Remove MIPS TCG backend
2026-05-21 08:20:58 +02:00
plugin-api.c
plugins: fix inclusion of user-mode APIs
2025-07-14 11:42:49 +01:00
qemu.h
linux-user/mips: sync k0 TLS for EF_MIPS_MACH_OCTEON userlands
2026-04-25 00:38:32 +02:00
semihost.c
semihosting: Remove qemu_semihosting_console_outs
2022-06-28 04:41:20 +05:30
signal-common.h
linux-user: Add syscall dispatch support
2025-09-23 16:17:59 -07:00
signal.c
bsd-user, linux-user: signal: recursive signal delivery fix
2026-03-31 19:13:20 +01:00
socket.h
Supply missing header guards
2019-06-12 13:20:21 +02:00
strace.c
linux-user: fix matching ioctl numbers in print_ioctl
2026-03-09 14:37:01 +01:00
strace.h
linux-user: Have do_syscall() use CPUArchState* instead of void*
2022-05-23 22:47:19 +02:00
strace.list
linux-user/strace: Use pointer type for read and write values
2026-04-25 00:38:32 +02:00
syscall_defs.h
linux-user: Use abi_int for imr_ifindex in ip_mreqn struct
2026-04-25 00:38:33 +02:00
syscall_types.h
linux-user: Add termios2 support
2026-01-23 20:40:15 +01:00
syscall.c
linux-user/mips, target/mips: honor MIPS_FIXADE for unaligned accesses
2026-05-21 08:20:58 +02:00
thunk.c
user: Move 'thunk.h' from 'exec/user' to 'user'
2024-05-03 17:21:20 +02:00
trace-events
linux-user: Rename user_force_sig tracepoint to match function name
2022-01-18 12:41:42 +01:00
trace.h
trace: switch position of headers to what Meson requires
2020-08-21 06:18:24 -04:00
uaccess.c
meson: Make DEBUG_REMAP a meson option
2024-04-24 15:46:00 -07:00
uname.c
linux-user: Remove pointless CPU{ARCH}State casts
2022-05-23 22:47:20 +02:00
uname.h
linux-user: Have do_syscall() use CPUArchState* instead of void*
2022-05-23 22:47:19 +02:00
user-internals.h
linux-user: Fix AT_EXECFN in AUXV for symlinked programs
2026-05-19 15:37:33 +02:00
user-mmap.h
user: Extract common MMAP API to 'user/mmap.h'
2025-03-09 14:54:32 +01:00
vm86.c
target/i386: Use little-endian variant of cpu_ld/st_data*()
2026-01-22 10:41:18 +01:00