* som.c (som_fixup_formats): Case R_ENTRY (0xb3), set both
'T' and 'U' to grab all the unwind information. (som_set_reloc_info): Make 'U' unwind bits persist across multiple SOM relocations. Set the addend field of an R_ENTRY relocation to the value in 'T'; set the addend field on an R_EXIT relocation to the value in 'U'.
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parent
e10639db44
commit
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@ -1,5 +1,12 @@
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Tue Sep 13 17:57:00 1994 Jeff Law (law@snake.cs.utah.edu)
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* som.c (som_fixup_formats): Case R_ENTRY (0xb3), set both
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'T' and 'U' to grab all the unwind information.
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(som_set_reloc_info): Make 'U' unwind bits persist across
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multiple SOM relocations. Set the addend field of an R_ENTRY
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relocation to the value in 'T'; set the addend field on an
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R_EXIT relocation to the value in 'U'.
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* som.h (som_symbol_type): Delete unwind field.
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* som.c (som_write_fixups): For R_ENTRY fixups, get 32bits of
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19
bfd/som.c
19
bfd/som.c
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@ -329,7 +329,8 @@ static const struct section_to_type stt[] = {
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O = stack operation
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R = parameter relocation bits
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S = symbol index
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U = 64 bits of stack unwind and frame size info (we only keep 32 bits)
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T = first 32 bits of stack unwind information
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U = second 32 bits of stack unwind information
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V = a literal constant (usually used in the next relocation)
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P = a previous relocation
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@ -570,7 +571,7 @@ static const struct fixup_format som_fixup_formats[256] =
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/* R_BREAKPOINT */
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0, "L4=", /* 0xb2 */
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/* R_ENTRY */
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0, "Ui=", /* 0xb3 */
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0, "Te=Ue=", /* 0xb3 */
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1, "Uf=", /* 0xb4 */
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/* R_ALT_ENTRY */
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0, "", /* 0xb5 */
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@ -3993,7 +3994,7 @@ som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
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const struct fixup_format *fp;
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char *cp;
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unsigned char *save_fixup;
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int variables[26], stack[20], c, v, count, prev_fixup, *sp;
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int variables[26], stack[20], c, v, count, prev_fixup, *sp, saved_unwind_bits;
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const int *subop;
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arelent *rptr= internal_relocs;
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unsigned int offset = 0;
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@ -4008,6 +4009,7 @@ som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
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memset (stack, 0, sizeof (stack));
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count = 0;
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prev_fixup = 0;
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saved_unwind_bits = 0;
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sp = stack;
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while (fixup < end_fixups)
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@ -4051,6 +4053,7 @@ som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
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into D. */
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var ('L') = 0;
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var ('D') = fp->D;
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var ('U') = saved_unwind_bits;
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/* Get the opcode format. */
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cp = fp->format;
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@ -4160,6 +4163,11 @@ som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
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++subop;
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--subop;
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break;
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/* The lower 32unwind bits must be persistent. */
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case 'U':
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saved_unwind_bits = var ('U');
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break;
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default:
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break;
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}
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@ -4183,6 +4191,11 @@ som_set_reloc_info (fixup, end, internal_relocs, section, symbols, just_count)
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/* Done with a single reloction. Loop back to the top. */
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if (! just_count)
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{
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if (som_hppa_howto_table[op].type == R_ENTRY)
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rptr->addend = var ('T');
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else if (som_hppa_howto_table[op].type == R_EXIT)
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rptr->addend = var ('U');
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else
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rptr->addend = var ('V');
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rptr++;
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}
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