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kboot: Implement mkdir(2)
mkdir() may be needed early in boot to create missing directories. Provide a syscall wrapper for it. Sponsored by: Netflix
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@ -5,6 +5,7 @@
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#define SYS_gettimeofday 96
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#define SYS_kexec_load 246
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#define SYS_lseek 8
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#define SYS_mkdirat 258
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#define SYS_mmap 9
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#define SYS_munmap 11
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#define SYS_newfstat 5
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@ -6,6 +6,7 @@
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#define SYS_gettimeofday 78
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#define SYS_kexec_load 268
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#define SYS_llseek 140
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#define SYS_mkdirat 287
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#define SYS_mmap 90
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#define SYS_munmap 91
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#define SYS_newfstat SYS_fstat
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@ -99,6 +99,7 @@ int host_getpid(void);
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int host_gettimeofday(struct host_timeval *a, void *b);
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int host_kexec_load(uint32_t start, int nsegs, uint32_t segs, uint32_t flags);
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ssize_t host_llseek(int fd, int32_t offset_high, int32_t offset_lo, uint64_t *result, int whence);
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int host_mkdir(const char *, host_mode_t);
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void *host_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t off);
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int host_munmap(void *addr, size_t len);
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int host_open(const char *path, int flags, int mode);
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@ -63,6 +63,12 @@ host_llseek(int fd, int32_t offset_high, int32_t offset_lo, uint64_t *result, in
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#endif
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}
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int
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host_mkdir(const char *path, host_mode_t mode)
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{
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return host_syscall(SYS_mkdirat, HOST_AT_FDCWD, (uintptr_t)path, mode);
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}
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void *
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host_mmap(void *addr, size_t len, int prot, int flags, int fd, off_t off)
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{
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