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annotate src/os/unix/rfork_thread.S @ 267:83205e0b5522

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nginx-0.0.2-2004-02-24-20:31:46 import
author Igor Sysoev <igor@sysoev.ru>
date Tue, 24 Feb 2004 17:31:46 +0000
parents
children da8c5707af39
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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267
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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1
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <sys/syscall.h>
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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3 #include <machine/asm.h>
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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4
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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5 /*
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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6 * rfork_thread(3) - rfork_thread(flags, stack, func, arg);
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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7 */
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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8
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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9 #define KERNCALL int $0x80
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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10
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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11 ENTRY(rfork_thread)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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12 push %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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13 mov %esp, %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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14 push %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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15
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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16 mov 12(%ebp), %esi # the stack address
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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17
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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18 sub $4, %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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19 mov 20(%ebp), %eax # the thread argument
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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20 mov %eax, (%esi)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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21
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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22 sub $4, %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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23 mov 16(%ebp), %eax # the start thread address
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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24 mov %eax, (%esi)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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25
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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26 push 8(%ebp) # rfork(2) flags
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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27 push $0
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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28 mov $SYS_rfork, %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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29 KERNCALL
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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30 jc error
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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31
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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32 cmp $0, %edx
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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33 jne child
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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34
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
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35 parent:
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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36 add $8, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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37 pop %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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38 mov %ebp, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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39 pop %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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40 ret
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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41
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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42 child:
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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43 mov %esi, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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44 pop %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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45 call *%eax # call a thread start address ...
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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46 add $4, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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47
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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48 push %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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49 push $0
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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50 mov $SYS_exit, %eax # ... and exit(2) after a thread would return
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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51 KERNCALL
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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52
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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53 error:
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
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54 add $8, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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55 pop %esi
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
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56 mov %ebp, %esp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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57 pop %ebp
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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58 PIC_PROLOGUE
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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59
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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60 /* libc's cerror: jmp PIC_PLT(HIDENAME(cerror)) */
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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61
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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62 push %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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63 call PIC_PLT(CNAME(__error))
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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64 pop %ecx
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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65 PIC_EPILOGUE
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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66 mov %ecx, (%eax)
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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67 mov $-1, %eax
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
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68 mov $-1, %edx
83205e0b5522 nginx-0.0.2-2004-02-24-20:31:46 import
Igor Sysoev <igor@sysoev.ru>
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69 ret