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Andreas Schwab ba584f1de3 linux-user: don't short-circuit read with zero length 
A zero-length read still needs to do the usual checks, thus it may return
errors like EBADF.  This makes the read syscall emulation consistent with
the pread64 syscall emulation.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <mvm5zsxz2we.fsf@suse.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-07 10:57:29 +01:00
..
aarch64
linux-user: Implement PR_PAC_RESET_KEYS
2019-02-05 16:52:39 +00:00
alpha
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
arm
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
cris
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
generic
linux-user: move generic signal definitions to generic/signal.h
2018-06-04 01:30:44 +02:00
host
linux-user: Add safe_syscall for riscv64 host
2018-12-26 06:40:02 +11:00
hppa
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
i386
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
m68k
target/m68k: Fix LGPL information in the file headers
2019-01-30 14:20:13 +01:00
microblaze
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
mips
target/mips: reimplement SC instruction emulation and use cmpxchg
2019-02-14 17:47:28 +01:00
mips64
linux-user: Add prctl() PR_SET_FP_MODE and PR_GET_FP_MODE implementations
2018-10-29 15:50:31 +01:00
nios2
Fix breakpoint support in Nios II user-mode emulation.
2019-03-07 10:57:29 +01:00
openrisc
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
ppc
target/ppc: move FP and VMX registers into aligned vsr register array
2019-01-09 09:28:14 +11:00
riscv
RISC-V: Use riscv prefix consistently on cpu helpers
2019-02-11 15:56:21 -08:00
s390x
s390x: Fix the confusing contributions-after-2012 license statements
2019-02-18 11:25:43 +01:00
sh4
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
sparc
linux-user/sparc/signal.c: Remove dead code
2018-11-15 13:06:40 +00:00
sparc64
linux-user/sparc64: Add inotify_rm_watch and tee syscalls
2018-06-11 14:47:45 +02:00
tilegx
linux-user: move generic signal definitions to generic/signal.h
2018-06-04 01:30:44 +02:00
x86_64
remove space-tab sequences
2019-01-11 15:46:55 +01:00
xtensa
linux-user: Don't call gdb_handlesig() before queue_signal()
2018-11-12 15:48:00 +01:00
cpu_loop-common.h
linux-user: create a dummy per arch cpu_loop.c
2018-04-30 09:47:55 +02:00
elfload.c
linux-user: Fix ELF_PLATFORM for aarch64_be-linux-user
2019-03-07 10:57:29 +01:00
errno_defs.h
linux-user: Handle ERFKILL and EHWPOISON
2017-01-22 18:14:10 -08:00
exit.c
linux-user: add gcov support to preexit_cleanup
2018-07-05 15:59:41 +01:00
fd-trans.c
linux-user: add new netlink types
2019-02-07 14:11:19 +01:00
fd-trans.h
linux-user: move TargetFdTrans functions to their own file
2018-09-25 22:36:47 +02:00
flat.h
…
flatload.c
linux-user/flatload: fix initial stack pointer alignment
2018-10-30 11:23:32 -07:00
ioctls.h
linux-user: Implement special usbfs ioctls.
2018-10-19 14:05:10 +02:00
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
m68k-sim.c
linux-user: Clean up includes
2016-01-29 15:07:22 +00:00
main.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
Makefile.objs
linux-user: move TargetFdTrans functions to their own file
2018-09-25 22:36:47 +02:00
mmap.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
qemu.h
linux-user: Fix compilation with clang 3.4
2019-01-22 06:26:31 +01:00
safe-syscall.S
linux-user: Provide safe_syscall for fixing races between signals and syscalls
2016-05-27 14:49:51 +03:00
signal-common.h
linux-user: introduce target_sigsp() and target_save_altstack()
2018-05-03 18:29:15 +02:00
signal.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
socket.h
linux-user: update ARCH_HAS_SOCKET_TYPES use
2018-05-25 10:10:55 +02:00
strace.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
strace.list
linux-user/strace: Improve recvmsg() output
2018-07-03 16:27:15 +02:00
syscall_defs.h
remove space-tab sequences
2019-01-11 15:46:55 +01:00
syscall_types.h
linux-user: Implement special usbfs ioctls.
2018-10-19 14:05:10 +02:00
syscall.c
linux-user: don't short-circuit read with zero length
2019-03-07 10:57:29 +01:00
target_flat.h
linux-user/FLAT: allow targets to override FLAT processing
2011-02-09 10:33:54 +02:00
trace-events
trace-events: fix code style: print 0x before hex numbers
2017-08-01 12:13:07 +01:00
uaccess.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00
uname.c
linux-user: Clean up includes
2016-01-29 15:07:22 +00:00
uname.h
Clean up decorations and whitespace around header guards
2016-07-12 16:20:46 +02:00
vm86.c
avoid TABs in files that only contain a few
2019-01-11 15:46:56 +01:00