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7872130113
qemu/linux-user
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Helge Deller 7872130113 linux-user: fix O_NONBLOCK in signalfd4() and eventfd2() syscalls 
On the hppa target userspace binaries may call signalfd4() and
eventfd2() with an old TARGET_O_NONBLOCK value of 000200004 instead of
000200000 for the "mask" syscall parameter, in which case the current
emulation doesn't handle the translation to the native O_NONBLOCK value
correctly.

The 0x04 bit is not masked out before the new O_NONBLOCK bit is set and
as such when calling the native syscall errors out with EINVAL.

Fix this by introducing TARGET_O_NONBLOCK_MASK which is used to mask off
all possible bits. This define defaults to TARGET_O_NONBLOCK when not
defined otherwise, so for all other targets the implementation will
behave as before.

This patch needs to be applied on top of my previous two patches.

Bug was found and patch was verified by using qemu-hppa as debian buildd
server on x86_64.

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>

Message-Id: <20210210061214.GA221322@ls3530.fritz.box>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-02-13 22:50:49 +01:00
..
aarch64 semihosting: Change common-semi API to be architecture-independent 2021-01-18 10:05:06 +00:00
alpha linux-user: Add missing TARGET___O_TMPFILE for hppa and alpha 2021-02-13 22:50:49 +01:00
arm semihosting: Change common-semi API to be architecture-independent 2021-01-18 10:05:06 +00:00
cris linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
generic linux-user: Remove obsolete F_SHLCK and F_EXLCK translation 2021-01-21 13:27:34 +01:00
host linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
hppa linux-user: fix O_NONBLOCK in signalfd4() and eventfd2() syscalls 2021-02-13 22:50:49 +01:00
i386 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
m68k linux-user: Correct definition of stack_t 2020-11-11 10:59:39 +01:00
microblaze linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
mips target/mips: Extract FPU helpers to 'fpu_helper.h' 2021-01-14 17:13:53 +01:00
mips64 linux-user/mips64: Support o32 ABI syscalls 2021-02-13 22:50:49 +01:00
nios2 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
openrisc linux-user: update syscall_nr.h to Linux 5.9-rc7 2020-10-26 11:39:23 +01:00
ppc linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
riscv riscv: Add semihosting support for user mode 2021-01-18 10:05:06 +00:00
s390x linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
sh4 linux-user: Correct definition of stack_t 2020-11-11 10:59:39 +01:00
sparc linux-user/sparc: Handle tstate in sparc64_get/set_context() 2020-12-18 11:23:29 +01:00
sparc64 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
tilegx linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
x86_64 linux user: Fix Lesser GPL version number 2020-11-15 16:41:26 +01:00
xtensa linux-user: update syscall.tbl to Linux 5.9-rc7 2020-10-26 11:39:23 +01:00
cpu_loop-common.h cpu: Replace ENV_GET_CPU with env_cpu 2019-06-10 07:03:34 -07:00
elfload.c linux-user: Add support for MIPS Loongson 2F/3A 2020-12-17 10:34:59 +01:00
errno_defs.h Supply missing header guards 2019-06-12 13:20:21 +02:00
exit.c gdbstub: drop CPUEnv from gdb_exit() 2021-01-18 10:05:06 +00:00
fd-trans.c linux-user,netlink: add IFLA_BRPORT_MRP_RING_OPEN, IFLA_BRPORT_MRP_IN_OPEN 2020-11-17 15:22:52 +01:00
fd-trans.h linux-user: move TargetFdTrans functions to their own file 2018-09-25 22:36:47 +02:00
flat.h linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
flatload.c linux-user/: fix some comment spelling errors 2020-09-17 20:39:22 +02:00
ioctls.h linux-user: Conditionalize TUNSETVNETLE 2021-01-07 05:09:06 -10:00
linux_loop.h linux-user: Add loop control ioctls 2016-07-19 15:22:33 +03:00
linuxload.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
main.c accel: replace struct CpusAccel with AccelOpsClass 2021-02-05 10:24:15 -10:00
meson.build semihosting: Move ARM semihosting code to shared directories 2021-01-18 10:05:06 +00:00
mmap.c linux-user/mmap.c: check range of mremap result in target address space 2020-12-17 10:34:27 +01:00
qemu.h riscv: Add semihosting support 2021-01-18 10:05:06 +00:00
safe-syscall.S linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
semihost.c riscv: Add semihosting support 2021-01-18 10:05:06 +00:00
signal-common.h linux-user: Make sigaltstack stacks per-thread 2019-07-26 19:24:33 +02:00
signal.c linux-user/signal: Decode waitid si_code 2021-02-13 22:50:49 +01:00
socket.h Supply missing header guards 2019-06-12 13:20:21 +02:00
strace.c linux-user: Add IPv6 options to do_print_sockopt() 2021-01-21 13:27:08 +01:00
strace.list linux-user: Add strace support for printing arguments of some clock and time functions 2020-08-27 12:29:50 +02:00
syscall_defs.h linux-user: Support F_ADD_SEALS and F_GET_SEALS fcntls 2021-01-20 18:21:03 +01:00
syscall_types.h linux-user: Add support for btrfs ioctls used to scrub a filesystem 2020-09-03 01:09:35 +02:00
syscall.c linux-user: fix O_NONBLOCK in signalfd4() and eventfd2() syscalls 2021-02-13 22:50:49 +01:00
target_flat.h Supply missing header guards 2019-06-12 13:20:21 +02:00
trace-events linux-user: fix use of SIGRTMIN 2020-02-12 18:56:41 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
uaccess.c avoid TABs in files that only contain a few 2019-01-11 15:46:56 +01:00
uname.c cpu: Replace ENV_GET_CPU with env_cpu 2019-06-10 07:03:34 -07:00
uname.h Clean up decorations and whitespace around header guards 2016-07-12 16:20:46 +02:00
vm86.c linux-user: Use `qemu_log' for non-strace logging 2020-02-19 11:17:40 +01:00