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33 lines
884 B
ArmAsm
33 lines
884 B
ArmAsm
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/* derived from glibc sysdeps/unix/sysv/linux/ia64/sysdep.S */
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#define __ASSEMBLY__
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#include <asm/asmmacro.h>
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#include <asm/unistd.h>
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ENTRY(__syscall_error)
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.prologue ASM_UNW_PRLG_RP|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(0)
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alloc r33=ar.pfs, 0, 4, 0, 0
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mov r32=rp
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.body
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mov r35=r8
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mov r34=r1
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;;
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br.call.sptk.many b0 = __errno_location
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.Lret0: /* force new bundle */
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st4 [r8]=r35
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mov r1=r34
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mov rp=r32
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mov r8=-1
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mov ar.pfs=r33
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br.ret.sptk.few b0
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END(__syscall_error)
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GLOBAL_ENTRY(__ia64_syscall)
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mov r15=r37 /* syscall number */
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break __BREAK_SYSCALL
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cmp.eq p6,p0=-1,r10 /* r10 = -1 on error */
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(p6) br.cond.spnt.few __syscall_error
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br.ret.sptk.few b0
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.endp __ia64_syscall
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