Last change
on this file since 390 was 390, checked in by coas-nagasima, 5 years ago |
コードを整理
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Property svn:eol-style
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Property svn:mime-type
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text/x-csrc;charset=UTF-8
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File size:
643 bytes
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Rev | Line | |
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[388] | 1 | #define _GNU_SOURCE
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| 2 | #include <unistd.h>
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| 3 | #include <sys/mman.h>
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| 4 | #include <errno.h>
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| 5 | #include <stdint.h>
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| 6 | #include <stdarg.h>
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| 7 | #include "syscall.h"
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| 8 | #include "libc.h"
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| 9 |
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| 10 | static void dummy(void) { }
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| 11 | weak_alias(dummy, __vm_wait);
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| 12 |
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| 13 | void *__mremap(void *old_addr, size_t old_len, size_t new_len, int flags, ...)
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| 14 | {
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| 15 | va_list ap;
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| 16 | void *new_addr = 0;
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| 17 |
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| 18 | if (new_len >= PTRDIFF_MAX) {
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| 19 | errno = ENOMEM;
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| 20 | return MAP_FAILED;
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| 21 | }
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| 22 |
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| 23 | if (flags & MREMAP_FIXED) {
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| 24 | __vm_wait();
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| 25 | va_start(ap, flags);
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| 26 | new_addr = va_arg(ap, void *);
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| 27 | va_end(ap);
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| 28 | }
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| 29 |
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| 30 | return (void *)syscall(SYS_mremap, old_addr, old_len, new_len, flags, new_addr);
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| 31 | }
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| 32 |
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| 33 | weak_alias(__mremap, mremap);
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