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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2f72d4f6a2
Xtensa implements a method that allows to generate a arbitrary output for each system call by defining the __SYSCALL(number, function, num_args). This usually requires to include uapi/unistd.h twice. Instead of removing the guard agains multiple inclusion entirely, allow to include unistd.h again only if __SYSCALL is defined. Note that __SYSCALL gets always undefined at the end of the file. Signed-off-by: Chris Zankel <chris@zankel.net>
34 lines
892 B
C
34 lines
892 B
C
#ifndef _XTENSA_UNISTD_H
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#define _XTENSA_UNISTD_H
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#include <uapi/asm/unistd.h>
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/*
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* "Conditional" syscalls
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*
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* What we want is __attribute__((weak,alias("sys_ni_syscall"))),
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* but it doesn't work on all toolchains, so we just do it by hand
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*/
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#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall");
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#define __ARCH_WANT_STAT64
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#define __ARCH_WANT_SYS_UTIME
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#define __ARCH_WANT_SYS_LLSEEK
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#define __ARCH_WANT_SYS_RT_SIGACTION
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#define __ARCH_WANT_SYS_RT_SIGSUSPEND
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#define __ARCH_WANT_SYS_GETPGRP
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/*
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* Ignore legacy system calls in the checksyscalls.sh script
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*/
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#define __IGNORE_fork /* use clone */
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#define __IGNORE_time
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#define __IGNORE_alarm /* use setitimer */
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#define __IGNORE_pause
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#define __IGNORE_mmap /* use mmap2 */
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#define __IGNORE_vfork /* use clone */
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#define __IGNORE_fadvise64 /* use fadvise64_64 */
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#endif /* _XTENSA_UNISTD_H */
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