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    Contents of /trunk/mkinitrd-magellan/klibc/usr/klibc/arch/arm/sysstub.ph

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    Revision 1297 - (show annotations) (download)
    Fri May 27 15:12:11 2011 UTC (12 years, 11 months ago) by niro
    File size: 1473 byte(s) 
    -updated to klibc-1.5.22 with mntproc definitions patch included
    1 # -*- perl -*-
    2 #
    3 # arch/arm/sysstub.ph
    4 #
    5 # Script to generate system call stubs
    6 #
    7
    8
    9 sub make_sysstub($$$$$@) {
    10 my($outputdir, $fname, $type, $sname, $stype, @args) = @_;
    11
    12 open(OUT, '>', "${outputdir}/${fname}.S");
    13 print OUT "#include <asm/unistd.h>\n";
    14 print OUT "#include <klibc/asmmacros.h>\n";
    15
    16 print OUT " .text\n";
    17 print OUT " .type ${fname}, #function\n";
    18 print OUT " .globl ${fname}\n";
    19
    20 print OUT "#ifndef __thumb__\n";
    21
    22 print OUT "#ifndef __ARM_EABI__\n";
    23
    24 # ARM version first
    25 print OUT " .balign 4\n";
    26 print OUT "${fname}:\n";
    27 print OUT " stmfd sp!,{r4,r5,lr}\n";
    28 print OUT " ldr r4,[sp,#12]\n";
    29 print OUT " ldr r5,[sp,#16]\n";
    30 print OUT " swi # __NR_${sname}\n";
    31 print OUT " b __syscall_common\n";
    32
    33 print OUT "#else /* __ARM_EABI__ */\n";
    34
    35 # ARM EABI version
    36 print out " .balign 4\n";
    37 print OUT "${fname}:\n";
    38 print OUT " stmfd sp!,{r4,r5,r7,lr}\n";
    39 print OUT " bl __syscall_common\n";
    40 print OUT " .word __NR_${sname}\n";
    41
    42 print OUT "#endif /* __ARM_EABI__ */\n";
    43 print OUT "#else /* __thumb__ */\n";
    44
    45 # Thumb version
    46 print OUT " .balign 8\n";
    47 print OUT " .thumb_func\n";
    48 print OUT "${fname}:\n";
    49 print OUT " push {r4,r5,r7,lr}\n";
    50 print OUT " bl __syscall_common\n";
    51 print OUT " .short __NR_${sname}\n";
    52
    53 print OUT "#endif /* __thumb__*/\n";
    54
    55 print OUT " .size ${fname},.-${fname}\n";
    56 }
    57
    58 1;