be91052932
This patch uses __kernel_vsyscall instead of "int 0x80" as the syscall entry point. AT_SYSINFO points to an adapter to mask the arch specific difference and gives a performance boost on i386 architecture. Change-ID: Ib340c604d02c6c25714a95793737e3cfdc3fc5d7 Signed-off-by: Mingwei Shi <mingwei.shi@intel.com>
39 lines
771 B
ArmAsm
39 lines
771 B
ArmAsm
/* Generated by gensyscalls.py. Do not edit. */
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#include <private/bionic_asm.h>
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ENTRY(read)
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pushl %ebx
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.cfi_def_cfa_offset 8
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.cfi_rel_offset ebx, 0
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pushl %ecx
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.cfi_adjust_cfa_offset 4
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.cfi_rel_offset ecx, 0
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pushl %edx
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.cfi_adjust_cfa_offset 4
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.cfi_rel_offset edx, 0
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call __kernel_syscall
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pushl %eax
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.cfi_adjust_cfa_offset 4
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.cfi_rel_offset eax, 0
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mov 20(%esp), %ebx
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mov 24(%esp), %ecx
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mov 28(%esp), %edx
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movl $__NR_read, %eax
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call *(%esp)
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addl $4, %esp
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cmpl $-MAX_ERRNO, %eax
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jb 1f
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negl %eax
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pushl %eax
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call __set_errno_internal
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addl $4, %esp
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1:
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popl %edx
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popl %ecx
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popl %ebx
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ret
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END(read)
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