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[/] [openrisc/] [trunk/] [gnu-src/] [binutils-2.18.50/] [ld/] [testsuite/] [ld-mips-elf/] [eh-frame1.s] - Blame information for rev 449

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1 38 julius 
#----------------------------------------------------------------------------
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# Macros
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#----------------------------------------------------------------------------
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        mask = (1 << alignment) - 1
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        # Output VALUE as an unaligned pointer-sized quantity.
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        .macro pbyte value
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        .if alignment == 2
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        .4byte          \value
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        .else
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        .8byte          \value
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        .endif
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        .endm
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        # Start a new CIE, and emit everything up to the augmentation data.
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        # Use LABEL to mark the start of the entry and AUG as the augmentation
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        # string.
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        .macro start_cie label,aug
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        .section        .eh_frame,"aw",@progbits
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\label:
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        .word           2f-1f           # Length
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1:
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        .word           0                # Identifier
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        .byte           1               # Version
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        .string         "\aug"          # Augmentation
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        .byte           1               # Code alignment
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        .byte           4               # Data alignment
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        .byte           31              # Return address column
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        .endm
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        # Create a dummy function of SIZE bytes in SECTION and emit the
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        # first four entries of an FDE for it.
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        .macro start_fde cie,section,size
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        .section        \section,"ax",@progbits
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3:
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        .rept           \size / 4
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        nop
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        .endr
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4:
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        .section        .eh_frame,"aw",@progbits
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        .word           2f-1f           # Length
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1:
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        .word           .-\cie          # CIE offset
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        pbyte           3b              # Initial PC
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        pbyte           4b-3b           # Size of code
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        .endm
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        # Finish a CIE or FDE entry.
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        .macro end_entry
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        .p2align        alignment,fill
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2:
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        .endm
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        # Start the augmentation data for a CIE that has a 'P' entry
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        # followed by EXTRA bytes.  AUGLEN is the length of augmentation
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        # string (including zero terminator), ENCODING is the encoding to
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        # use for the personality routine and VALUE is the value it
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        # should have.
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        .macro          persaug auglen,extra,encoding,value
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        .if (\encoding & 0xf0) == 0x50
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        .byte           (-(9 + \auglen + 3 + 2) & mask) + 2 + mask + \extra
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        .byte           \encoding
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        .fill           -(9 + \auglen + 3 + 2) & mask,1,0
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        .else
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        .byte           2 + mask + \extra
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        .byte           \encoding
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        .endif
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        pbyte           \value
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        .endm
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        .macro cie_basic label
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        start_cie       \label,""
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        end_entry
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        .endm
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        .macro fde_basic cie,section,size
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        start_fde       \cie,\section,\size
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        end_entry
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        .endm
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        .macro cie_zP label,encoding,value
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        start_cie        \label,"zP"
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        persaug         3,0,\encoding,\value
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        end_entry
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        .endm
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        .macro fde_zP cie,section,size
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        start_fde        \cie,\section,\size
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        .byte            0               # Augmentation length
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        end_entry
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        .endm
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        .macro cie_zPR label,encoding,value
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        start_cie        \label,"zPR"
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        persaug         4,1,\encoding,\value
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        .byte           0                # FDE enconding
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        end_entry
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        .endm
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        .macro fde_zPR cie,section,size
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        start_fde       \cie,\section,\size
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        .byte           0                # Augmentation length
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        end_entry
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        .endm
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#----------------------------------------------------------------------------
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# Test code
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#----------------------------------------------------------------------------
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        cie_basic       basic1
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        fde_basic       basic1,.text,0x10
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        fde_basic       basic1,.text,0x20
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        cie_basic       basic2
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        fde_basic       basic2,.text,0x30
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        cie_basic       basic3
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        fde_basic       basic3,.text,0x40
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        cie_basic       basic4
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        fde_basic       basic4,.text,0x50
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        cie_zP          zP_unalign1,0x00,foo
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        fde_zP          zP_unalign1,.text,0x10
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        fde_zP          zP_unalign1,.text,0x20
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        cie_zP          zP_align1,0x50,foo
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        fde_zP          zP_align1,.text,0x10
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        fde_zP          zP_align1,.text,0x20
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        cie_zPR         zPR1,0x00,foo
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        fde_zPR         zPR1,.text,0x10
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        fde_zPR         zPR1,.discard,0x20
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        cie_zPR         zPR2,0x00,foo
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        fde_zPR         zPR2,.text,0x30
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        fde_zPR         zPR2,.text,0x40
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        cie_basic       basic5
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        fde_basic       basic5,.text,0x10
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        .if alignment == 2
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        .section        .gcc_compiled_long32
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        .endif

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