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59 lines
980 B
ArmAsm
59 lines
980 B
ArmAsm
#include <sys/syscall.h>
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#ifdef __STDC__
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#define SYS(X) SYS_##X
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#ifdef __ELF__
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#define NAME(X) machdep_sys_##X
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#else
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#define NAME(X) _machdep_sys_##X
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#endif
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#else
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#define SYS(X) SYS_/**/X
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#ifdef __ELF__
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#define NAME(X) machdep_sys_/**/X
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#else
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#define NAME(X) _machdep_sys_/**/X
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#endif
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#endif
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#ifdef __ELF__
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#define END(X) 5: ; .type NAME(X),@function ; .size NAME(X),5b - NAME(X)
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#define KERNCALL int $0x80
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#else
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#define END(X)
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#define KERNCALL .byte 0x9a; .long 0; .word 7;
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#endif
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#define SYSCALL(x) \
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.globl NAME(x); \
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\
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NAME(x):; \
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movl $(SYS(x)), %eax; \
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KERNCALL; \
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jb 1b; \
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ret; \
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END(x)
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/*
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* Initial asm stuff for all functions.
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*/
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.text
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.align 2
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/* ==========================================================================
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* error code for all syscalls. The error value is returned as the negative
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* of the errno value.
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*/
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1:
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neg %eax
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ret
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#define XSYSCALL(NAME) SYSCALL(NAME)
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XSYSCALL(SYSCALL_NAME)
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