OpenE2K/qemu-e2k
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04c95f4da7
qemu-e2k/linux-user
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Peter Maydell 04c95f4da7 linux-user: Don't use alloca() for epoll_wait's epoll event array 
The epoll event array which epoll_wait() allocates has a size
determined by the guest which could potentially be quite large.
Use g_try_new() rather than alloca() so that we can fail more
cleanly if the guest hands us an oversize value. (ENOMEM is
not a documented return value for epoll_wait() but in practice
some kernel configurations can return it -- see for instance
sys_oabi_epoll_wait() on ARM.)

This rearrangement includes fixing a bug where we were
incorrectly passing a negative length to unlock_user() in
the error-exit codepath.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
2016-10-21 15:19:41 +03:00
..
aarch64 linux-user: AArch64 has sync_file_range, not sync_file_range2 2016-07-19 16:18:11 +03:00
alpha linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
arm linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
cris linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
host linux-user: Clean up hostdep.h header guards 2016-07-12 16:19:16 +02:00
i386 linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
m68k linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
microblaze linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
mips linux-user: Add missing TARGET_EDQUOT error code for Mips 2016-09-23 07:07:35 +01:00
mips64 linux-user: Add missing TARGET_EDQUOT error code for Mips 2016-09-23 07:07:35 +01:00
openrisc linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
ppc ppc: Fix signal delivery in ppc-user and ppc64-user 2016-09-23 10:29:40 +10:00
s390x linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
sh4 linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
sparc linux-user: Use correct target SHMLBA in shmat() 2016-09-21 14:28:52 +03:00
sparc64 linux-user: sparc64: Use correct target SHMLBA in shmat() 2016-10-21 15:19:40 +03:00
tilegx linux-user: fix TARGET_NR_select 2016-09-22 07:24:21 +03:00
unicore32 linux-user: Clean up target_structs.h header guards 2016-07-12 16:19:16 +02:00
x86_64 linux-user: Fix target_semid_ds structure definition 2016-08-04 16:36:53 +03:00
elfload.c linux-user: ppc64: fix ARCH_206 bit in AT_HWCAP 2016-09-23 12:39:07 +10:00
errno_defs.h linux-user: Renumber TARGET_QEMU_ESIGRETURN, make it not arch-specific 2016-05-27 14:49:49 +03:00
flat.h
flatload.c linux-user: Fix error handling in flatload.c target_pread() 2016-09-21 14:27:19 +03:00
ioctls.h linux-user: Implement FS_IOC_GETFLAGS and FS_IOC_SETFLAGS ioctls 2016-09-21 14:24:47 +03:00
linux_loop.h linux-user: Add loop control ioctls 2016-07-19 15:22:33 +03:00
linuxload.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00
m68k-sim.c linux-user: Clean up includes 2016-01-29 15:07:22 +00:00
main.c trace: provide mechanism for registering trace events 2016-10-12 09:52:50 +02:00
Makefile.objs linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
mmap.c os-posix: include sys/mman.h 2016-06-16 18:39:03 +02:00
qemu.h linux-user: Pass si_type information to queue_signal() explicitly 2016-09-21 22:01:28 +03:00
safe-syscall.S linux-user: Provide safe_syscall for fixing races between signals and syscalls 2016-05-27 14:49:51 +03:00
signal.c ppc: Fix signal delivery in ppc-user and ppc64-user 2016-09-23 10:29:40 +10:00
socket.h
strace.c linux-user: Fix syslog() syscall support 2016-10-21 15:19:40 +03:00
strace.list linux-user: Remove a duplicate item from strace.list 2016-10-21 15:19:40 +03:00
syscall_defs.h linux-user: Fix syslog() syscall support 2016-10-21 15:19:40 +03:00
syscall_types.h linux-user: Correct type for LOOP_GET_STATUS{,64} ioctls 2016-07-19 15:23:16 +03:00
syscall.c linux-user: Don't use alloca() for epoll_wait's epoll event array 2016-10-21 15:19:41 +03:00
target_flat.h
trace-events trace-events: fix first line comment in trace-events 2016-08-12 10:36:01 +01:00
uaccess.c util: move declarations out of qemu-common.h 2016-03-22 22:20:17 +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 linux-user: Clean up includes 2016-01-29 15:07:22 +00:00