92 lines
1.4 KiB
ArmAsm
92 lines
1.4 KiB
ArmAsm
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.text
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.globl _start
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.type _start,@function
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.p2align 4
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_start:
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xorl %ebp, %ebp
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#ifdef __LP64__
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popq %rdi
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movq %rsp, %rsi
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andq $~15, %rsp
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#elif defined __x86_64__
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mov (%rsp),%edi
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addl $4,%esp
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movl %esp, %esi
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andl $~15, %esp
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#else
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popl %esi
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movl %esp, %ecx
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andl $~15, %esp
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subl $8,%esp
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pushl %ecx
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pushl %esi
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#endif
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call main
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hlt
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.type syscall, @function
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.globl syscall
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.p2align 4
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syscall:
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#ifdef __x86_64__
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movq %rdi, %rax /* Syscall number -> rax. */
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movq %rsi, %rdi /* shift arg1 - arg5. */
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movq %rdx, %rsi
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movq %rcx, %rdx
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movq %r8, %r10
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movq %r9, %r8
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movq 8(%rsp),%r9 /* arg6 is on the stack. */
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syscall /* Do the system call. */
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#else
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push %ebp
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push %edi
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push %esi
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push %ebx
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mov 0x2c(%esp),%ebp
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mov 0x28(%esp),%edi
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mov 0x24(%esp),%esi
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mov 0x20(%esp),%edx
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mov 0x1c(%esp),%ecx
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mov 0x18(%esp),%ebx
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mov 0x14(%esp),%eax
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int $0x80
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pop %ebx
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pop %esi
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pop %edi
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pop %ebp
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#endif
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ret /* Return to caller. */
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.size syscall, .-syscall
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.section .note.GNU-stack,"",@progbits
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.section ".note.gnu.property", "a"
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#ifdef __LP64__
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.p2align 3
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#else
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.p2align 2
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#endif
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.long 1f - 0f /* name length */
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.long 5f - 2f /* data length */
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.long 5 /* note type */
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0: .asciz "GNU" /* vendor name */
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1:
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#ifdef __LP64__
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.p2align 3
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#else
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.p2align 2
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#endif
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2: .long 0xc0000002 /* pr_type. */
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.long 4f - 3f /* pr_datasz. */
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3:
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.long 0x2
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4:
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#ifdef __LP64__
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.p2align 3
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#else
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.p2align 2
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#endif
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5:
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