| The Android Open Source Project | 1dc9e47 | 2009-03-03 19:28:35 -0800 | [diff] [blame] | 1 | #include <sys/linux-syscalls.h> |
| 2 | |
| 3 | .text |
| 4 | |
| 5 | /* |
| 6 | * int __pthread_clone(int (*fn)(void*), void *tls, int flags, |
| 7 | * void *arg); |
| 8 | */ |
| 9 | .globl __pthread_clone |
| 10 | .type __pthread_clone, @function |
| 11 | .align 4 |
| 12 | __pthread_clone: |
| 13 | pushl %ebx |
| 14 | pushl %ecx |
| 15 | movl 16(%esp), %ecx |
| 16 | movl 20(%esp), %ebx |
| 17 | |
| 18 | # insert arguments onto the child stack |
| 19 | movl 12(%esp), %eax |
| 20 | movl %eax, -12(%ecx) |
| 21 | movl 24(%esp), %eax |
| 22 | movl %eax, -8(%ecx) |
| 23 | lea (%ecx), %eax |
| 24 | movl %eax, -4(%ecx) |
| 25 | |
| 26 | movl $__NR_clone, %eax |
| 27 | int $0x80 |
| 28 | test %eax, %eax |
| 29 | jns 1f |
| 30 | |
| 31 | # an error occured, set errno and return -1 |
| 32 | negl %eax |
| 33 | call __set_errno |
| 34 | orl $-1, %eax |
| 35 | jmp 2f |
| 36 | |
| 37 | 1: |
| 38 | jnz 2f |
| 39 | |
| 40 | # we're in the child thread now, call __thread_entry |
| 41 | # with the appropriate arguments on the child stack |
| 42 | # we already placed most of them |
| 43 | subl $16, %esp |
| 44 | jmp __thread_entry |
| 45 | hlt |
| 46 | |
| 47 | 2: |
| 48 | popl %ecx |
| 49 | popl %ebx |
| 50 | ret |
| David 'Digit' Turner | 97cf7f3 | 2010-01-22 18:59:05 -0800 | [diff] [blame^] | 51 | |
| 52 | /* XXX: TODO: Add __bionic_clone here |
| 53 | * See bionic/bionic_clone.c and arch-arm/bionic/clone.S |
| 54 | * for more details... |
| 55 | */ |