linux-2.6-unwind-through-signal-frames.patch

   1 --- linux-2.6.15/arch/i386/kernel/vsyscall-sigreturn.S.jj       2006-01-02 22:21:10.000000000 -0500
   2 +++ linux-2.6.15/arch/i386/kernel/vsyscall-sigreturn.S  2006-02-21 05:10:31.000000000 -0500
   3 @@ -44,7 +44,7 @@ __kernel_rt_sigreturn:
   4  .LSTARTCIEDLSI1:
   5         .long 0                 /* CIE ID */
   6         .byte 1                 /* Version number */
   7 -       .string "zR"            /* NUL-terminated augmentation string */
   8 +       .string "zRS"           /* NUL-terminated augmentation string */
   9         .uleb128 1              /* Code alignment factor */
  10         .sleb128 -4             /* Data alignment factor */
  11         .byte 8                 /* Return address register column */
  12 --- linux-2.6.15/arch/x86_64/ia32/vsyscall-sigreturn.S.jj       2006-01-02 22:21:10.000000000 -0500
  13 +++ linux-2.6.15/arch/x86_64/ia32/vsyscall-sigreturn.S  2006-02-21 05:17:41.000000000 -0500
  14 @@ -31,8 +31,27 @@ __kernel_rt_sigreturn:
  15         .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
  16
  17         .section .eh_frame,"a",@progbits
  18 +.LSTARTFRAMES:
  19 +        .long .LENDCIES-.LSTARTCIES
  20 +.LSTARTCIES:
  21 +       .long 0                 /* CIE ID */
  22 +       .byte 1                 /* Version number */
  23 +       .string "zRS"           /* NUL-terminated augmentation string */
  24 +       .uleb128 1              /* Code alignment factor */
  25 +       .sleb128 -4             /* Data alignment factor */
  26 +       .byte 8                 /* Return address register column */
  27 +       .uleb128 1              /* Augmentation value length */
  28 +       .byte 0x1b              /* DW_EH_PE_pcrel|DW_EH_PE_sdata4. */
  29 +       .byte 0x0c              /* DW_CFA_def_cfa */
  30 +       .uleb128 4
  31 +       .uleb128 4
  32 +       .byte 0x88              /* DW_CFA_offset, column 0x8 */
  33 +       .uleb128 1
  34 +       .align 4
  35 +.LENDCIES:
  36 +
  37         .long .LENDFDE2-.LSTARTFDE2     /* Length FDE */
  38  .LSTARTFDE2:
  39 -       .long .LSTARTFDE2-.LSTARTFRAME  /* CIE pointer */
  40 +       .long .LSTARTFDE2-.LSTARTFRAMES /* CIE pointer */
  41         /* HACK: The dwarf2 unwind routines will subtract 1 from the
  42            return address to get an address in the middle of the
  43 @@ -96,7 +116,7 @@ __kernel_rt_sigreturn:
  44
  45         .long .LENDFDE3-.LSTARTFDE3     /* Length FDE */
  46  .LSTARTFDE3:
  47 -       .long .LSTARTFDE3-.LSTARTFRAME  /* CIE pointer */
  48 +       .long .LSTARTFDE3-.LSTARTFRAMES /* CIE pointer */
  49         /* HACK: See above wrt unwind library assumptions.  */
  50         .long .LSTART_rt_sigreturn-1-.  /* PC-relative start address */
  51         .long .LEND_rt_sigreturn-.LSTART_rt_sigreturn+1
  52 --- linux-2.6.15/arch/powerpc/kernel/vdso32/sigtramp.S.jj       2006-01-02 22:21:10.000000000 -0500
  53 +++ linux-2.6.15/arch/powerpc/kernel/vdso32/sigtramp.S  2006-02-21 05:24:12.000000000 -0500
  54 @@ -261,7 +261,7 @@ V_FUNCTION_END(__kernel_sigtramp_rt32)
  55  .Lcie_start:
  56         .long 0                 /* CIE ID */
  57         .byte 1                 /* Version number */
  58 -       .string "zR"            /* NUL-terminated augmentation string */
  59 +       .string "zRS"           /* NUL-terminated augmentation string */
  60         .uleb128 4              /* Code alignment factor */
  61         .sleb128 -4             /* Data alignment factor */
  62         .byte 67                /* Return address register column, ap */
  63 --- linux-2.6.15/arch/powerpc/kernel/vdso64/sigtramp.S.jj       2006-01-02 22:21:10.000000000 -0500
  64 +++ linux-2.6.15/arch/powerpc/kernel/vdso64/sigtramp.S  2006-02-21 05:28:28.000000000 -0500
  65 @@ -263,7 +263,7 @@ V_FUNCTION_END(__kernel_sigtramp_rt64)
  66  .Lcie_start:
  67         .long 0                 /* CIE ID */
  68         .byte 1                 /* Version number */
  69 -       .string "zR"            /* NUL-terminated augmentation string */
  70 +       .string "zRS"           /* NUL-terminated augmentation string */
  71         .uleb128 4              /* Code alignment factor */
  72         .sleb128 -8             /* Data alignment factor */
  73         .byte 67                /* Return address register column, ap */