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54d46ea993
Pull signal handling cleanups from Al Viro: "sigaltstack infrastructure + conversion for x86, alpha and um, COMPAT_SYSCALL_DEFINE infrastructure. Note that there are several conflicts between "unify SS_ONSTACK/SS_DISABLE definitions" and UAPI patches in mainline; resolution is trivial - just remove definitions of SS_ONSTACK and SS_DISABLED from arch/*/uapi/asm/signal.h; they are all identical and include/uapi/linux/signal.h contains the unified variant." Fixed up conflicts as per Al. * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal: alpha: switch to generic sigaltstack new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those generic compat_sys_sigaltstack() introduce generic sys_sigaltstack(), switch x86 and um to it new helper: compat_user_stack_pointer() new helper: restore_altstack() unify SS_ONSTACK/SS_DISABLE definitions new helper: current_user_stack_pointer() missing user_stack_pointer() instances Bury the conditionals from kernel_thread/kernel_execve series COMPAT_SYSCALL_DEFINE: infrastructure
35 lines
1.0 KiB
C
35 lines
1.0 KiB
C
#ifndef _ALPHA_UNISTD_H
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#define _ALPHA_UNISTD_H
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#include <uapi/asm/unistd.h>
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#define NR_SYSCALLS 506
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#define __ARCH_WANT_OLD_READDIR
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_GETHOSTNAME
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#define __ARCH_WANT_SYS_FADVISE64
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#define __ARCH_WANT_SYS_GETPGRP
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#define __ARCH_WANT_SYS_OLD_GETRLIMIT
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#define __ARCH_WANT_SYS_OLDUMOUNT
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#define __ARCH_WANT_SYS_SIGPENDING
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#define __ARCH_WANT_SYS_RT_SIGSUSPEND
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#define __ARCH_WANT_SYS_FORK
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#define __ARCH_WANT_SYS_VFORK
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#define __ARCH_WANT_SYS_CLONE
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/* "Conditional" syscalls. What we want is
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__attribute__((weak,alias("sys_ni_syscall")))
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but that raises the problem of what type to give the symbol. If we use
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a prototype, it'll conflict with the definition given in this file and
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others. If we use __typeof, we discover that not all symbols actually
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have declarations. If we use no prototype, then we get warnings from
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-Wstrict-prototypes. Ho hum. */
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#define cond_syscall(x) asm(".weak\t" #x "\n" #x " = sys_ni_syscall")
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#endif /* _ALPHA_UNISTD_H */
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