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annotate src/os/unix/rfork_thread.S @ 444:42d11f017717

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nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
author Igor Sysoev <igor@sysoev.ru>
date Wed, 29 Sep 2004 16:00:49 +0000
parents da8c5707af39
children 621229427cba
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
Igor Sysoev <igor@sysoev.ru>
parents: 267
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1
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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2 /*
444
42d11f017717 nginx-0.1.0-2004-09-29-20:00:49 import; remove years from copyright
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3 * Copyright (C) Igor Sysoev
441
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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4 */
da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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da8c5707af39 nginx-0.1.0-2004-09-28-12:34:51 import; set copyright and remove unused files
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6
267
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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8 #include <sys/syscall.h>
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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9 #include <machine/asm.h>
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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11 /*
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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12 * rfork_thread(3) - rfork_thread(flags, stack, func, arg);
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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13 */
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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14
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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15 #define KERNCALL int $0x80
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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16
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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17 ENTRY(rfork_thread)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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18 push %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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19 mov %esp, %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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20 push %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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21
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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22 mov 12(%ebp), %esi # the stack address
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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24 sub $4, %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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25 mov 20(%ebp), %eax # the thread argument
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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26 mov %eax, (%esi)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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27
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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28 sub $4, %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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29 mov 16(%ebp), %eax # the start thread address
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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30 mov %eax, (%esi)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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32 push 8(%ebp) # rfork(2) flags
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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33 push $0
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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34 mov $SYS_rfork, %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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35 KERNCALL
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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36 jc error
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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37
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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38 cmp $0, %edx
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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39 jne child
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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40
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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41 parent:
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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42 add $8, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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43 pop %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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44 mov %ebp, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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45 pop %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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46 ret
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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47
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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48 child:
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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49 mov %esi, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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50 pop %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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51 call *%eax # call a thread start address ...
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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52 add $4, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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53
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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54 push %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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55 push $0
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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56 mov $SYS_exit, %eax # ... and exit(2) after a thread would return
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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57 KERNCALL
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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58
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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59 error:
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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60 add $8, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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61 pop %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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62 mov %ebp, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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63 pop %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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64 PIC_PROLOGUE
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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65
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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66 /* libc's cerror: jmp PIC_PLT(HIDENAME(cerror)) */
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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67
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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68 push %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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69 call PIC_PLT(CNAME(__error))
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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70 pop %ecx
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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71 PIC_EPILOGUE
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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72 mov %ecx, (%eax)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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73 mov $-1, %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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74 mov $-1, %edx
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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75 ret