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* config/tc-sh.h (struct sh_segment_info_type): Define.

Browse Source 
(TC_SEGMENT_INFO_TYPE): Define.
	(sh_frob_label): Declare.
	(tc_frob_label): Define.
	(sh_flush_pending_output): Declare.
	(md_flush_pending_output): Define.
	* config/tc-sh.c (md_assemble): If relaxing, emit a R_SH_CODE
 	reloc before the instruction if necessary.
	(sh_frob_label): New function.
	(sh_flush_pending_output): New function.
	(sh_coff_frob_file): Ignore ALIGN, CODE, DATA, and LABEL relocs
	when looking for the reloc for the target of .uses.
	(md_convert_frag): Fix printf format (%0xlx to 0x%lx).
	(sh_force_relocation): Force CODE, DATA, and LABEL relocs to be
	emitted.
	(md_apply_fix): Ignore CODE, DATA, and LABEL relocs.
	(sh_coff_reloc_mangle): Force CODE, DATA, and LABEL relocs to use
	the absolute symbol.
This commit is contained in:
Ian Lance Taylor 1996-05-16 19:57:12 +00:00
parent f4e769dc02
commit bccbc0aa84
1 changed files with 56 additions and 4 deletions
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60
gas/config/tc-sh.c
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@ -900,6 +900,15 @@ md_assemble (str)
return;
}
if (sh_relax
&& ! seg_info (now_seg)->tc_segment_info_data.in_code)
{
/* Output a CODE reloc to tell the linker that the following
bytes are instructions, not data. */
fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, R_SH_CODE);
seg_info (now_seg)->tc_segment_info_data.in_code = 1;
}
if (opcode->arg[0] == A_BDISP12
|| opcode->arg[0] == A_BDISP8)
{
@ -930,6 +939,31 @@ md_assemble (str)
}
/* This routine is called each time a label definition is seen. It
emits a R_SH_LABEL reloc if necessary. */
void
sh_frob_label ()
{
if (sh_relax
&& seg_info (now_seg)->tc_segment_info_data.in_code)
fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, R_SH_LABEL);
}
/* This routine is called when the assembler is about to output some
data. It emits a R_SH_DATA reloc if necessary. */
void
sh_flush_pending_output ()
{
if (sh_relax
&& seg_info (now_seg)->tc_segment_info_data.in_code)
{
fix_new (frag_now, frag_now_fix (), 2, &abs_symbol, 0, 0, R_SH_DATA);
seg_info (now_seg)->tc_segment_info_data.in_code = 0;
}
}
void
DEFUN (tc_crawl_symbol_chain, (headers),
object_headers * headers)
@ -1166,7 +1200,11 @@ sh_coff_frob_file ()
for (fscan = segment_info[iseg].fix_root;
fscan != NULL;
fscan = fscan->fx_next)
if (val == fscan->fx_frag->fr_address + fscan->fx_where)
if (val == fscan->fx_frag->fr_address + fscan->fx_where
&& fscan->fx_r_type != R_SH_ALIGN
&& fscan->fx_r_type != R_SH_CODE
&& fscan->fx_r_type != R_SH_DATA
&& fscan->fx_r_type != R_SH_LABEL)
break;
if (fscan == NULL)
{
@ -1344,7 +1382,7 @@ md_convert_frag (headers, seg, fragP)
case C (COND_JUMP, COND32):
case C (COND_JUMP, UNDEF_WORD_DISP):
if (fragP->fr_symbol == NULL)
as_bad ("at %0xlx, displacement overflows 8-bit field",
as_bad ("at 0x%lx, displacement overflows 8-bit field",
(unsigned long) fragP->fr_address);
else
as_bad ("at 0x%lx, displacement to %sdefined symbol %s overflows 8-bit field ",
@ -1462,7 +1500,10 @@ sh_force_relocation (fix)
return (fix->fx_pcrel
|| SWITCH_TABLE (fix)
|| fix->fx_r_type == R_SH_COUNT
|| fix->fx_r_type == R_SH_ALIGN);
|| fix->fx_r_type == R_SH_ALIGN
|| fix->fx_r_type == R_SH_CODE
|| fix->fx_r_type == R_SH_DATA
|| fix->fx_r_type == R_SH_LABEL);
}
/* Apply a fixup to the object file. */
@ -1593,6 +1634,9 @@ md_apply_fix (fixP, val)
case R_SH_COUNT:
case R_SH_ALIGN:
case R_SH_CODE:
case R_SH_DATA:
case R_SH_LABEL:
/* Nothing to do here. */
break;
@ -1705,7 +1749,8 @@ sh_do_align (n, fill, len)
#ifdef BFD_ASSEMBLER
|| (now_seg->flags & SEC_CODE) != 0
#endif
|| strcmp (obj_segment_name (now_seg), ".init") == 0))
|| strcmp (obj_segment_name (now_seg), ".init") == 0)
&& n > 1)
{
static const unsigned char big_nop_pattern[] = { 0x00, 0x09 };
static const unsigned char little_nop_pattern[] = { 0x09, 0x00 };
@ -1804,6 +1849,13 @@ sh_coff_reloc_mangle (seg, fix, intr, paddr)
/* This reloc is always absolute. */
symbol_ptr = NULL;
}
else if (fix->fx_r_type == R_SH_CODE
|| fix->fx_r_type == R_SH_DATA
|| fix->fx_r_type == R_SH_LABEL)
{
/* These relocs are always absolute. */
symbol_ptr = NULL;
}
/* Turn the segment of the symbol into an offset. */
if (symbol_ptr != NULL)