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tc-a29k.c: some cleanup; range-checking on JUMPTARG relocs

This commit is contained in:
Ken Raeburn 1994-11-07 07:04:09 +00:00
parent d4e4b3f7f5
commit f4c01c9548
2 changed files with 31 additions and 22 deletions
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11
gas/ChangeLog
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@ -1,3 +1,14 @@
Mon Nov 7 01:58:49 1994 Ken Raeburn <raeburn@cujo.cygnus.com>
* config/tc-a29k.c (octal, toHex): Variables deleted.
(isoctal): Macro deleted.
(md_begin): Don't initialize them.
(machine_ip, case 'P'/'A'): For absolute operand, generate an
error message if it's out of range.
(md_apply_fix, case RELOC_JUMPTARG): Check range for PC-relative
jumps.
(md_apply_fix): Delete code inside "#if 0".
Thu Nov 3 20:20:40 1994 Ken Raeburn <raeburn@cujo.cygnus.com>
* config/go32.mh: Unused file deleted.

42
gas/config/tc-a29k.c
View File

@ -123,10 +123,6 @@ const char FLT_CHARS[] = "rRsSfFdDxXpP";
changed in read.c. Ideally it shouldn't have to know about it at
all, but nothing is ideal around here. */
static unsigned char octal[256];
#define isoctal(c) octal[c]
static unsigned char toHex[256];
/*
* anull bit - causes the branch delay slot instructions to not be executed
*/
@ -338,15 +334,6 @@ md_begin ()
if (lose)
as_fatal ("Broken assembler. No assembly attempted.");
for (i = '0'; i < '8'; ++i)
octal[i] = 1;
for (i = '0'; i <= '9'; ++i)
toHex[i] = i - '0';
for (i = 'a'; i <= 'f'; ++i)
toHex[i] = i + 10 - 'a';
for (i = 'A'; i <= 'F'; ++i)
toHex[i] = i + 10 - 'A';
define_some_regs ();
}
@ -595,6 +582,13 @@ machine_ip (str)
/* Make sure the 'A' case really exists. */
if ((insn->opcode | ABSOLUTE_BIT) != (insn + 1)->opcode)
break;
{
bfd_vma v, mask;
mask = 0x1ffff;
v = operand->X_add_number & ~ mask;
if (v)
as_bad ("call/jmp target out of range");
}
opcode |= ABSOLUTE_BIT |
(operand->X_add_number & 0x0003FC00) << 6 |
((operand->X_add_number & 0x000003FC) >> 2);
@ -860,16 +854,20 @@ md_apply_fix (fixP, val)
buf[3] = val;
break;
#if 0
case RELOC_PC10:
case RELOC_PC22:
case RELOC_JMP_TBL:
case RELOC_SEGOFF16:
case RELOC_GLOB_DAT:
case RELOC_JMP_SLOT:
case RELOC_RELATIVE:
#endif
case RELOC_JUMPTARG: /* 00XX00XX pattern in a word */
if (!fixP->fx_done)
/* let linker deal */
;
else if (fixP->fx_pcrel)
{
long v = val >> 16;
if (v != 0 && v != -1)
as_bad_where (fixP->fx_file, fixP->fx_line,
"call/jmp target out of range");
}
else
/* this case was supposed to be handled in machine_ip */
abort ();
buf[1] = val >> 10; /* Holds bits 0003FFFC of address */
buf[3] = val >> 2;
break;