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fix different ANON flag between

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darwin and linux

SVN=121371
This commit is contained in:
Ken Thompson 2008-06-05 21:02:55 -07:00
parent 959f9fb3d4
commit fa259ff89c
1 changed files with 10 additions and 1 deletions
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11
src/runtime/rt0_amd64_linux.s
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@ -60,9 +60,18 @@ TEXT sys_mmap(SB),1,$-8
MOVQ 8(SP), DI MOVQ 8(SP), DI
MOVL 16(SP), SI MOVL 16(SP), SI
MOVL 20(SP), DX MOVL 20(SP), DX
MOVL 24(SP), R10 MOVL 24(SP), CX
MOVL 28(SP), R8 MOVL 28(SP), R8
MOVL 32(SP), R9 MOVL 32(SP), R9
/* flags arg for ANON is 1000 but sb 20 */
MOVL CX, AX
ANDL $~0x1000, CX
ANDL $0x1000, AX
SHRL $7, AX
ORL AX, CX
MOVL CX, R10
MOVL $9, AX // syscall entry MOVL $9, AX // syscall entry
SYSCALL SYSCALL
CMPQ AX, $0xfffffffffffff001 CMPQ AX, $0xfffffffffffff001