Last change
on this file since 445 was 444, checked in by coas-nagasima, 4 years ago |
muslのソースコードを追加
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Property svn:eol-style
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Property svn:mime-type
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File size:
630 bytes
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1 | #include <sys/ptrace.h>
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2 | #include <stdarg.h>
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3 | #include <unistd.h>
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4 | #include "syscall.h"
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5 |
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6 | long ptrace(int req, ...)
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7 | {
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8 | va_list ap;
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9 | pid_t pid;
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10 | void *addr, *data, *addr2 = 0;
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11 | long ret, result;
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12 |
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13 | va_start(ap, req);
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14 | pid = va_arg(ap, pid_t);
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15 | addr = va_arg(ap, void *);
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16 | data = va_arg(ap, void *);
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17 | /* PTRACE_{READ,WRITE}{DATA,TEXT} (16...19) are specific to SPARC. */
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18 | #ifdef PTRACE_READDATA
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19 | if ((unsigned)req - PTRACE_READDATA < 4)
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20 | addr2 = va_arg(ap, void *);
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21 | #endif
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22 | va_end(ap);
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23 |
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24 | if (req-1U < 3) data = &result;
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25 | ret = syscall(SYS_ptrace, req, pid, addr, data, addr2);
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26 |
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27 | if (ret < 0 || req-1U >= 3) return ret;
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28 | return result;
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29 | }
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