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linux-user: add setns and unshare

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Add support for the setns and unshare syscalls, trivially passed through to
the host. Based on patches by Paul Burton, added configure check.

Signed-off-by: Paul Burton <paul@archlinuxmips.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Riku Voipio 2014-08-12 15:58:57 +03:00
parent ab31cda327
commit 9af5c906d1
3 changed files with 34 additions and 0 deletions
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11
linux-user/syscall.c
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@ -9610,6 +9610,17 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
#endif
#if defined(TARGET_NR_setns) && defined(CONFIG_SETNS)
case TARGET_NR_setns:
ret = get_errno(setns(arg1, arg2));
break;
#endif
#if defined(TARGET_NR_unshare) && defined(CONFIG_SETNS)
case TARGET_NR_unshare:
ret = get_errno(unshare(arg1));
break;
#endif
default:
unimplemented:
gemu_log("qemu: Unsupported syscall: %d\n", num);