+2001-07-23 Alan Modra <amodra@bigpond.net.au>
+
+ * symbols.c (S_GET_VALUE): Don't treat O_constant and local
+ symbols specially. Always resolve, adding fr_address to value.
+ * write.c (write_object_file): Don't add fr_address to sym values.
+ (relax_frag): Likewise.
+ (relax_segment): Likewise.
+ * config/obj-ieee.c (do_symbols): Likewise.
+ * config/tc-cris.c (md_convert_frag): Likewise.
+ * config/tc-fr30.c (md_convert_frag): Likewise.
+ * config/tc-i386.c (md_convert_frag): Likewise.
+ * config/tc-m32r.c (md_convert_frag): Likewise.
+ * config/tc-m68hc11.c (md_convert_frag): Likewise.
+ * config/tc-mcore.c (md_convert_frag): Likewise.
+ * config/tc-mips.c (mips16_extended_frag): Likewise.
+ * config/tc-ns32k.c (md_convert_frag): Likewise.
+ * config/tc-m68k.c (md_convert_frag_1): Likewise.
+ (BRANCHBWL, BRABSJUNC, BRABSJCOND, BRANCHBW, FBRANCH, DBCCLBR,
+ DBCCABSJ, PCREL1632, PCINDEX, ABSTOPCREL): Decrement.
+ (md_relax_table): Remove first four entries. Format.
+ (md_estimate_size_before_relax): Remove old_fix. Don't bother
+ setting fr_var. Simplify byte branch checks.
+
2001-07-23 Alan Modra <amodra@bigpond.net.au>
* config/tc-hppa.c (pa_parse_nonneg_cmpsub_cmpltr): Remove
fscan->fx_frag.
* write.c (TC_FINALIZE_SYMS_BEFORE_SIZE_SEG): Default to 1.
- (write_object_file): Set finalize_syms to
- TC_FINALIZE_SYMS_BEFORE_SIZE_SEG just before size_segs is
- called.
+ (write_object_file): Set finalize_syms to
+ TC_FINALIZE_SYMS_BEFORE_SIZE_SEG just before size_segs is
+ called.
- * doc/internals.texi; Document
+ * doc/internals.texi; Document
TC_FINALIZE_SYMS_BEFORE_SIZE_SEG.
2001-07-02 Alan Modra <amodra@bigpond.net.au>
2001-06-18 H.J. Lu <hjl@gnu.org>
- * doc/Makefile.am (info): Depend on $(MANS).
- (as.1): Remove the prefix `$(srcdir)/'.
- * doc/Makefile.in: Regenerated.
+ * doc/Makefile.am (info): Depend on $(MANS).
+ (as.1): Remove the prefix `$(srcdir)/'.
+ * doc/Makefile.in: Regenerated.
- * as.1: Removed.
+ * as.1: Removed.
2001-06-18 Philip Blundell <philb@gnu.org>
2001-06-12 Peter Jakubek <pjak@snafu.de>
* gas/config/tc-m68k.c (parse_mri_control_operand): Fix handling
- of AND/OR.
- (swap_mri_condition): Add HS (alias fo CC) and LO (alias for CS).
- (reverse_mri_condition): Likewise.
- (swap_mri_condition): Issue warning for conditions that can not be
- swapped.
- (build_mri_control_operand): Fix order of operands (swapped).
- (build_mri_control_operand): Allow upper case extension in structured
- control directives.
- (s_mri_else): Likewise.
- (s_mri_next): Likewise.
- (s_mri_for): Likewise.
- (s_mri_if): Fix handling comment ('*') in mri mode.
- (s_mri_while): Likewise.
- * gas/macro.c (macro_expand): Allow macro invocation with empty
- extension.
+ of AND/OR.
+ (swap_mri_condition): Add HS (alias fo CC) and LO (alias for CS).
+ (reverse_mri_condition): Likewise.
+ (swap_mri_condition): Issue warning for conditions that can not be
+ swapped.
+ (build_mri_control_operand): Fix order of operands (swapped).
+ (build_mri_control_operand): Allow upper case extension in structured
+ control directives.
+ (s_mri_else): Likewise.
+ (s_mri_next): Likewise.
+ (s_mri_for): Likewise.
+ (s_mri_if): Fix handling comment ('*') in mri mode.
+ (s_mri_while): Likewise.
+ * gas/macro.c (macro_expand): Allow macro invocation with empty
+ extension.
2001-06-12 Nick Clifton <nickc@cambridge.redhat.com>
BYTE and SHORT forms, punting if that isn't enough. This gives us four
different relaxation modes for branches: */
-#define BRANCHBWL 1 /* branch byte, word, or long */
-#define BRABSJUNC 2 /* absolute jump for LONG, unconditional */
-#define BRABSJCOND 3 /* absolute jump for LONG, conditional */
-#define BRANCHBW 4 /* branch byte or word */
+#define BRANCHBWL 0 /* branch byte, word, or long */
+#define BRABSJUNC 1 /* absolute jump for LONG, unconditional */
+#define BRABSJCOND 2 /* absolute jump for LONG, conditional */
+#define BRANCHBW 3 /* branch byte or word */
/* We also relax coprocessor branches and DBcc's. All CPUs that support
coprocessor branches support them in word and long forms, so we have only
This gives us two relaxation modes. If long branches are not available and
absolute jumps are not acceptable, we don't relax DBcc's. */
-#define FBRANCH 5 /* coprocessor branch */
-#define DBCCLBR 6 /* DBcc relaxable with a long branch */
-#define DBCCABSJ 7 /* DBcc relaxable with an absolute jump */
+#define FBRANCH 4 /* coprocessor branch */
+#define DBCCLBR 5 /* DBcc relaxable with a long branch */
+#define DBCCABSJ 6 /* DBcc relaxable with an absolute jump */
/* That's all for instruction relaxation. However, we also relax PC-relative
operands. Specifically, we have three operand relaxation modes. On the
form of the PC+displacement+index operand. Finally, some absolute operands
can be relaxed down to 16-bit PC-relative. */
-#define PCREL1632 8 /* 16-bit or 32-bit PC-relative */
-#define PCINDEX 9 /* PC+displacement+index */
-#define ABSTOPCREL 10 /* absolute relax down to 16-bit PC-relative */
+#define PCREL1632 7 /* 16-bit or 32-bit PC-relative */
+#define PCINDEX 8 /* PC+displacement+index */
+#define ABSTOPCREL 9 /* absolute relax down to 16-bit PC-relative */
/* Note that calls to frag_var need to specify the maximum expansion
needed; this is currently 10 bytes for DBCC. */
*/
relax_typeS md_relax_table[] =
{
- {1, 1, 0, 0}, /* First entries aren't used */
- {1, 1, 0, 0}, /* For no good reason except */
- {1, 1, 0, 0}, /* that the VAX doesn't either */
- {1, 1, 0, 0},
-
- {(127), (-128), 0, TAB (BRANCHBWL, SHORT)},
- {(32767), (-32768), 2, TAB (BRANCHBWL, LONG)},
- {0, 0, 4, 0},
- {1, 1, 0, 0},
-
- {(127), (-128), 0, TAB (BRABSJUNC, SHORT)},
- {(32767), (-32768), 2, TAB (BRABSJUNC, LONG)},
- {0, 0, 4, 0},
- {1, 1, 0, 0},
-
- {(127), (-128), 0, TAB (BRABSJCOND, SHORT)},
- {(32767), (-32768), 2, TAB (BRABSJCOND, LONG)},
- {0, 0, 6, 0},
- {1, 1, 0, 0},
-
- {(127), (-128), 0, TAB (BRANCHBW, SHORT)},
- {0, 0, 2, 0},
- {1, 1, 0, 0},
- {1, 1, 0, 0},
-
- {1, 1, 0, 0}, /* FBRANCH doesn't come BYTE */
- {(32767), (-32768), 2, TAB (FBRANCH, LONG)},
- {0, 0, 4, 0},
- {1, 1, 0, 0},
-
- {1, 1, 0, 0}, /* DBCC doesn't come BYTE */
- {(32767), (-32768), 2, TAB (DBCCLBR, LONG)},
- {0, 0, 10, 0},
- {1, 1, 0, 0},
-
- {1, 1, 0, 0}, /* DBCC doesn't come BYTE */
- {(32767), (-32768), 2, TAB (DBCCABSJ, LONG)},
- {0, 0, 10, 0},
- {1, 1, 0, 0},
-
- {1, 1, 0, 0}, /* PCREL1632 doesn't come BYTE */
- {32767, -32768, 2, TAB (PCREL1632, LONG)},
- {0, 0, 6, 0},
- {1, 1, 0, 0},
-
- {125, -130, 0, TAB (PCINDEX, SHORT)},
- {32765, -32770, 2, TAB (PCINDEX, LONG)},
- {0, 0, 4, 0},
- {1, 1, 0, 0},
-
- {1, 1, 0, 0}, /* ABSTOPCREL doesn't come BYTE */
- {(32767), (-32768), 2, TAB (ABSTOPCREL, LONG)},
- {0, 0, 4, 0},
- {1, 1, 0, 0},
+ { 127, -128, 0, TAB (BRANCHBWL, SHORT) },
+ { 32767, -32768, 2, TAB (BRANCHBWL, LONG) },
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { 127, -128, 0, TAB (BRABSJUNC, SHORT) },
+ { 32767, -32768, 2, TAB (BRABSJUNC, LONG) },
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { 127, -128, 0, TAB (BRABSJCOND, SHORT) },
+ { 32767, -32768, 2, TAB (BRABSJCOND, LONG) },
+ { 0, 0, 6, 0 },
+ { 1, 1, 0, 0 },
+
+ { 127, -128, 0, TAB (BRANCHBW, SHORT) },
+ { 0, 0, 2, 0 },
+ { 1, 1, 0, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* FBRANCH doesn't come BYTE */
+ { 32767, -32768, 2, TAB (FBRANCH, LONG) },
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE */
+ { 32767, -32768, 2, TAB (DBCCLBR, LONG) },
+ { 0, 0, 10, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* DBCC doesn't come BYTE */
+ { 32767, -32768, 2, TAB (DBCCABSJ, LONG) },
+ { 0, 0, 10, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* PCREL1632 doesn't come BYTE */
+ { 32767, -32768, 2, TAB (PCREL1632, LONG) },
+ { 0, 0, 6, 0 },
+ { 1, 1, 0, 0 },
+
+ { 125, -130, 0, TAB (PCINDEX, SHORT) },
+ { 32765, -32770, 2, TAB (PCINDEX, LONG) },
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
+
+ { 1, 1, 0, 0 }, /* ABSTOPCREL doesn't come BYTE */
+ { 32767, -32768, 2, TAB (ABSTOPCREL, LONG) },
+ { 0, 0, 4, 0 },
+ { 1, 1, 0, 0 },
};
/* These are the machine dependent pseudo-ops. These are included so
disp = fragP->fr_symbol ? S_GET_VALUE (fragP->fr_symbol) : 0;
disp = (disp + fragP->fr_offset) - object_address;
-#ifdef BFD_ASSEMBLER
- disp += symbol_get_frag (fragP->fr_symbol)->fr_address;
-#endif
-
switch (fragP->fr_subtype)
{
case TAB (BRANCHBWL, BYTE):
register fragS *fragP;
segT segment;
{
- int old_fix;
-
- old_fix = fragP->fr_fix;
-
/* Handle SZ_UNDEF first, it can be changed to BYTE or SHORT. */
switch (fragP->fr_subtype)
{
case TAB (BRABSJCOND, BYTE):
case TAB (BRANCHBW, BYTE):
/* We can't do a short jump to the next instruction, so in that
- case we force word mode. At this point S_GET_VALUE should
- return the offset of the symbol within its frag. If the
- symbol is at the start of a frag, and it is the next frag
- with any data in it (usually this is just the next frag, but
- assembler listings may introduce empty frags), we must use
- word mode. */
- if (fragP->fr_symbol && S_GET_VALUE (fragP->fr_symbol) == 0)
+ case we force word mode. If the symbol is at the start of a
+ frag, and it is the next frag with any data in it (usually
+ this is just the next frag, but assembler listings may
+ introduce empty frags), we must use word mode. */
+ if (fragP->fr_symbol)
{
- fragS *stop;
- fragS *l;
+ fragS *sym_frag;
- stop = symbol_get_frag (fragP->fr_symbol);
-
- for (l = fragP->fr_next; l != stop; l = l->fr_next)
+ sym_frag = symbol_get_frag (fragP->fr_symbol);
+ if (S_GET_VALUE (fragP->fr_symbol) == sym_frag->fr_address)
{
- /* Catch empty alignment frags whoes fr_offset field
- is an alignment requirement of 2 bytes. The check
- below will misinterpret this as evidence that real
- code exists between the symbol and the instruction
- and so will not convert the short jump into a word
- jump. */
- if (l->fr_fix == 0
- && l->fr_var == 1
- && (l->fr_type == rs_align || l->fr_type == rs_align_code))
- continue;
-
- if (l->fr_fix + l->fr_var != 0)
- break;
+ fragS *l;
+
+ for (l = fragP->fr_next; l != sym_frag; l = l->fr_next)
+ if (l->fr_fix != 0)
+ break;
+ if (l == sym_frag)
+ fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
}
- if (l == stop)
- fragP->fr_subtype = TAB (TABTYPE (fragP->fr_subtype), SHORT);
}
break;
default:
break;
}
- fragP->fr_var = md_relax_table[fragP->fr_subtype].rlx_length;
- return fragP->fr_var + fragP->fr_fix - old_fix;
+ return md_relax_table[fragP->fr_subtype].rlx_length;
}
#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
projects / binutils-gdb.git / commitdiff