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| author | Peter Maydell <peter.maydell@linaro.org> | 2016-05-27 14:05:48 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2016-05-27 14:05:48 +0100 |
| commit | d6550e9ed2e1a60d889dfb721de00d9a4e3bafbe (patch) | |
| tree | 3ab1161c8e63c202cbd207cfb10e1e37ec206951 /linux-user/safe-syscall.S | |
| parent | 34c99d7b93c9181aa8c426300beca130b2b19e39 (diff) | |
| parent | 49e55cbacf4ad08f831b9f3f9cb0f3082883a3a1 (diff) | |
Merge remote-tracking branch 'remotes/riku/tags/pull-linux-user-20160527' into staging
linux-user pull request v2 for may 2016
# gpg: Signature made Fri 27 May 2016 12:51:10 BST using RSA key ID DE3C9BC0
# gpg: Good signature from "Riku Voipio <riku.voipio@iki.fi>"
# gpg: aka "Riku Voipio <riku.voipio@linaro.org>"
* remotes/riku/tags/pull-linux-user-20160527: (38 commits)
linux-user,target-ppc: fix use of MSR_LE
linux-user/signal.c: Use s390 target space address instead of host space
linux-user/signal.c: Use target address instead of host address for microblaze restorer
linux-user/signal.c: Generate opcode data for restorer in setup_rt_frame
linux-user: arm: Remove ARM_cpsr and similar #defines
linux-user: Use direct syscalls for setuid(), etc
linux-user: x86_64: Don't use 16-bit UIDs
linux-user: Use g_try_malloc() in do_msgrcv()
linux-user: Handle msgrcv error case correctly
linux-user: Handle negative values in timespec conversion
linux-user: Use safe_syscall for futex syscall
linux-user: Use safe_syscall for pselect, select syscalls
linux-user: Use safe_syscall for execve syscall
linux-user: Use safe_syscall for wait system calls
linux-user: Use safe_syscall for open and openat system calls
linux-user: Use safe_syscall for read and write system calls
linux-user: Provide safe_syscall for fixing races between signals and syscalls
linux-user: Add debug code to exercise restarting system calls
linux-user: Support for restarting system calls for Microblaze targets
linux-user: Set r14 on exit from microblaze syscall
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'linux-user/safe-syscall.S')
| -rw-r--r-- | linux-user/safe-syscall.S | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/linux-user/safe-syscall.S b/linux-user/safe-syscall.S new file mode 100644 index 0000000000..b5df6254ae --- /dev/null +++ b/linux-user/safe-syscall.S @@ -0,0 +1,30 @@ +/* + * safe-syscall.S : include the host-specific assembly fragment + * to handle signals occurring at the same time as system calls. + * + * Written by Peter Maydell <peter.maydell@linaro.org> + * + * Copyright (C) 2016 Linaro Limited + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "hostdep.h" +#include "errno_defs.h" + +/* We have the correct host directory on our include path + * so that this will pull in the right fragment for the architecture. + */ +#ifdef HAVE_SAFE_SYSCALL +#include "safe-syscall.inc.S" +#endif + +/* We must specifically say that we're happy for the stack to not be + * executable, otherwise the toolchain will default to assuming our + * assembly needs an executable stack and the whole QEMU binary will + * needlessly end up with one. This should be the last thing in this file. + */ +#if defined(__linux__) && defined(__ELF__) +.section .note.GNU-stack, "", %progbits +#endif |