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* coff-rs6000.c (xcoff_howto_table): Change size to 0 and bitsize to 1.
	(_bfd_xcoff_reloc_type_lookup): Handle BFD_RELOC_NONE.
	* coff64-rs6000.c (xcoff64_howto_table): Change size to 0 and
	bitsize to 1.
	(xcoff64_reloc_type_lookup): Handle BFD_RELOC_NONE.

gas/
	* write.h (fix_at_start): Declare.
	* write.c (fix_new_internal): Add at_beginning parameter.
	Use it instead of REVERSE_SORT_RELOCS.  Fix the handling of
	seg_fix_tailP for the at_beginning/REVERSE_SORT_RELOCS case.
	(fix_new, fix_new_exp): Update accordingly.
	(fix_at_start): New function.
	* config/tc-ppc.c (md_pseudo_table): Add .ref to the OBJ_XCOFF section.
	(ppc_ref): New function, for OBJ_XCOFF.
	(md_apply_fix): Handle BFD_RELOC_NONE for OBJ_XCOFF.
	* config/te-i386aix.h (REVERSE_SORT_RELOCS): Remove #undef.

gas/testsuite/
	* gas/ppc/xcoff-ref-1.s, gas/ppc/xcoff-ref-1.l: New test.
	* gas/ppc/aix.exp: Run it.


ld/testsuite/
	* ld-powerpc/aix-ref-1-32.od, ld-powerpc/aix-ref-1-64.od,
	ld-powerpc/aix-ref-1.s: New tests.
	* ld-powerpc/aix52.exp: Run them.
This commit is contained in:
Richard Sandiford 2010-01-23 12:05:33 +00:00
parent d35e937f74
commit c865e45b1b
17 changed files with 270 additions and 32 deletions
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8
bfd/ChangeLog
View file

@ -1,3 +1,11 @@
2010-01-23 Richard Sandiford <r.sandiford@uk.ibm.com>
* coff-rs6000.c (xcoff_howto_table): Change size to 0 and bitsize to 1.
(_bfd_xcoff_reloc_type_lookup): Handle BFD_RELOC_NONE.
* coff64-rs6000.c (xcoff64_howto_table): Change size to 0 and
bitsize to 1.
(xcoff64_reloc_type_lookup): Handle BFD_RELOC_NONE.
2010-01-21 Nick Clifton <nickc@redhat.com>
* elflink.c (elf_link_add_object_symbols): Look up name of

8
bfd/coff-rs6000.c
View file

@ -896,11 +896,11 @@ reloc_howto_type xcoff_howto_table[] =
EMPTY_HOWTO (0xe),
/* Non-relocating reference. */
/* Non-relocating reference. Bitsize is 1 so that r_rsize is 0. */
HOWTO (R_REF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* size (0 = byte, 1 = short, 2 = long) */
1, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
@ -1162,6 +1162,8 @@ _bfd_xcoff_reloc_type_lookup (abfd, code)
case BFD_RELOC_32:
case BFD_RELOC_CTOR:
return &xcoff_howto_table[0];
case BFD_RELOC_NONE:
return &xcoff_howto_table[0xf];
default:
return NULL;
}

8
bfd/coff64-rs6000.c
View file

@ -1594,11 +1594,11 @@ reloc_howto_type xcoff64_howto_table[] =
EMPTY_HOWTO (0xe),
/* Non-relocating reference. */
/* Non-relocating reference. Bitsize is 1 so that r_rsize is 0. */
HOWTO (R_REF, /* type */
0, /* rightshift */
2, /* size (0 = byte, 1 = short, 2 = long) */
32, /* bitsize */
0, /* size (0 = byte, 1 = short, 2 = long) */
1, /* bitsize */
FALSE, /* pc_relative */
0, /* bitpos */
complain_overflow_dont, /* complain_on_overflow */
@ -1882,6 +1882,8 @@ xcoff64_reloc_type_lookup (abfd, code)
return &xcoff64_howto_table[0x1c];
case BFD_RELOC_64:
return &xcoff64_howto_table[0];
case BFD_RELOC_NONE:
return &xcoff64_howto_table[0xf];
default:
return NULL;
}

13
gas/ChangeLog
View file

@ -1,3 +1,16 @@
2010-01-23 Richard Sandiford <r.sandiford@uk.ibm.com>
* write.h (fix_at_start): Declare.
* write.c (fix_new_internal): Add at_beginning parameter.
Use it instead of REVERSE_SORT_RELOCS. Fix the handling of
seg_fix_tailP for the at_beginning/REVERSE_SORT_RELOCS case.
(fix_new, fix_new_exp): Update accordingly.
(fix_at_start): New function.
* config/tc-ppc.c (md_pseudo_table): Add .ref to the OBJ_XCOFF section.
(ppc_ref): New function, for OBJ_XCOFF.
(md_apply_fix): Handle BFD_RELOC_NONE for OBJ_XCOFF.
* config/te-i386aix.h (REVERSE_SORT_RELOCS): Remove #undef.
2010-01-21 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
* config/te-solaris.h (DWARF2_EH_FRAME_READ_ONLY): Make read-only

59
gas/config/tc-ppc.c
View file

@ -108,6 +108,7 @@ static void ppc_change_csect (symbolS *, offsetT);
static void ppc_function (int);
static void ppc_extern (int);
static void ppc_lglobl (int);
static void ppc_ref (int);
static void ppc_section (int);
static void ppc_named_section (int);
static void ppc_stabx (int);
@ -212,6 +213,7 @@ const pseudo_typeS md_pseudo_table[] =
{ "extern", ppc_extern, 0 },
{ "function", ppc_function, 0 },
{ "lglobl", ppc_lglobl, 0 },
{ "ref", ppc_ref, 0 },
{ "rename", ppc_rename, 0 },
{ "section", ppc_named_section, 0 },
{ "stabx", ppc_stabx, 0 },
@ -3559,6 +3561,58 @@ ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
demand_empty_rest_of_line ();
}
/* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
relocations at the beginning of the current csect.
(In principle, there's no reason why the relocations _have_ to be at
the beginning. Anywhere in the csect would do. However, inserting
at the beginning is what the native assmebler does, and it helps to
deal with cases where the .ref statements follow the section contents.)
??? .refs don't work for empty .csects. However, the native assembler
doesn't report an error in this case, and neither yet do we. */
static void
ppc_ref (int ignore ATTRIBUTE_UNUSED)
{
char *name;
char c;
if (ppc_current_csect == NULL)
{
as_bad (_(".ref outside .csect"));
ignore_rest_of_line ();
return;
}
do
{
name = input_line_pointer;
c = get_symbol_end ();
fix_at_start (symbol_get_frag (ppc_current_csect), 0,
symbol_find_or_make (name), 0, FALSE, BFD_RELOC_NONE);
*input_line_pointer = c;
SKIP_WHITESPACE ();
c = *input_line_pointer;
if (c == ',')
{
input_line_pointer++;
SKIP_WHITESPACE ();
if (is_end_of_line[(unsigned char) *input_line_pointer])
{
as_bad (_("missing symbol name"));
ignore_rest_of_line ();
return;
}
}
}
while (c == ',');
demand_empty_rest_of_line ();
}
/* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
although I don't know why it bothers. */
@ -6032,6 +6086,11 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
PPC_HA (value), 2);
break;
#ifdef OBJ_XCOFF
case BFD_RELOC_NONE:
break;
#endif
#ifdef OBJ_ELF
case BFD_RELOC_PPC64_HIGHER:
if (fixP->fx_pcrel)

4
gas/config/te-i386aix.h
View file

@ -24,10 +24,6 @@
#include "obj-format.h"
/* Undefine REVERSE_SORT_RELOCS to keep the relocation entries sorted
in ascending vaddr. */
#undef REVERSE_SORT_RELOCS
/* Define KEEP_RELOC_INFO so that the strip reloc info flag F_RELFLG is
not used in the filehdr for COFF output. */
#define KEEP_RELOC_INFO

5
gas/testsuite/ChangeLog
View file

@ -1,3 +1,8 @@
2010-01-23 Richard Sandiford <r.sandiford@uk.ibm.com>
* gas/ppc/xcoff-ref-1.s, gas/ppc/xcoff-ref-1.l: New test.
* gas/ppc/aix.exp: Run it.
2010-01-21 H.J. Lu <hongjiu.lu@intel.com>
* gas/i386/x86-64-xsave.s: Add tests for xsave64 and xrstor64.

2
gas/testsuite/gas/ppc/aix.exp
View file

@ -65,4 +65,6 @@ if [istarget powerpc-ibm-aix*] then {
run_dump_test "textalign-xcoff-002"
run_dump_test "xcoff-branch-1-32"
run_dump_test "xcoff-branch-1-64"
run_list_test "xcoff-ref-1"
}

5
gas/testsuite/gas/ppc/xcoff-ref-1.l Normal file
View file

@ -0,0 +1,5 @@
.*: Assembler messages:
.*:1: Error: .ref outside .csect
.*:3: Error: junk at end of line, first unrecognized character is `1'
.*:4: Error: missing symbol name
.*:5: Error: missing symbol name

6
gas/testsuite/gas/ppc/xcoff-ref-1.s Normal file
View file

@ -0,0 +1,6 @@
.ref foo
.csect bar[rw]
.ref 1234
.ref a,
.ref ,
.ref

53
gas/write.c
View file

@ -150,7 +150,8 @@ fix_new_internal (fragS *frag, /* Which frag? */
symbolS *sub_symbol, /* X_op_symbol. */
offsetT offset, /* X_add_number. */
int pcrel, /* TRUE if PC-relative relocation. */
RELOC_ENUM r_type ATTRIBUTE_UNUSED /* Relocation type. */)
RELOC_ENUM r_type ATTRIBUTE_UNUSED /* Relocation type. */,
int at_beginning) /* Add to the start of the list? */
{
fixS *fixP;
@ -194,10 +195,6 @@ fix_new_internal (fragS *frag, /* Which frag? */
as_where (&fixP->fx_file, &fixP->fx_line);
/* Usually, we want relocs sorted numerically, but while
comparing to older versions of gas that have relocs
reverse sorted, it is convenient to have this compile
time option. xoxorich. */
{
fixS **seg_fix_rootP = (frags_chained
@ -207,22 +204,22 @@ fix_new_internal (fragS *frag, /* Which frag? */
? &seg_info (now_seg)->fix_tail
: &frchain_now->fix_tail);
#ifdef REVERSE_SORT_RELOCS
fixP->fx_next = *seg_fix_rootP;
*seg_fix_rootP = fixP;
#else /* REVERSE_SORT_RELOCS */
fixP->fx_next = NULL;
if (*seg_fix_tailP)
(*seg_fix_tailP)->fx_next = fixP;
if (at_beginning)
{
fixP->fx_next = *seg_fix_rootP;
*seg_fix_rootP = fixP;
if (fixP->fx_next == NULL)
*seg_fix_tailP = fixP;
}
else
*seg_fix_rootP = fixP;
*seg_fix_tailP = fixP;
#endif /* REVERSE_SORT_RELOCS */
{
fixP->fx_next = NULL;
if (*seg_fix_tailP)
(*seg_fix_tailP)->fx_next = fixP;
else
*seg_fix_rootP = fixP;
*seg_fix_tailP = fixP;
}
}
return fixP;
@ -240,7 +237,7 @@ fix_new (fragS *frag, /* Which frag? */
RELOC_ENUM r_type /* Relocation type. */)
{
return fix_new_internal (frag, where, size, add_symbol,
(symbolS *) NULL, offset, pcrel, r_type);
(symbolS *) NULL, offset, pcrel, r_type, FALSE);
}
/* Create a fixup for an expression. Currently we only support fixups
@ -308,7 +305,19 @@ fix_new_exp (fragS *frag, /* Which frag? */
break;
}
return fix_new_internal (frag, where, size, add, sub, off, pcrel, r_type);
return fix_new_internal (frag, where, size, add, sub, off, pcrel,
r_type, FALSE);
}
/* Create a fixup at the beginning of FRAG. The arguments are the same
as for fix_new, except that WHERE is implicitly 0. */
fixS *
fix_at_start (fragS *frag, int size, symbolS *add_symbol,
offsetT offset, int pcrel, RELOC_ENUM r_type)
{
return fix_new_internal (frag, 0, size, add_symbol,
(symbolS *) NULL, offset, pcrel, r_type, TRUE);
}
/* Generic function to determine whether a fixup requires a relocation. */

3
gas/write.h
View file

@ -176,6 +176,9 @@ extern void number_to_chars_bigendian (char *, valueT, int);
extern fixS *fix_new
(fragS * frag, int where, int size, symbolS * add_symbol,
offsetT offset, int pcrel, bfd_reloc_code_real_type r_type);
extern fixS *fix_at_start
(fragS * frag, int size, symbolS * add_symbol,
offsetT offset, int pcrel, bfd_reloc_code_real_type r_type);
extern fixS *fix_new_exp
(fragS * frag, int where, int size, expressionS *exp, int pcrel,
bfd_reloc_code_real_type r_type);

6
ld/testsuite/ChangeLog
View file

@ -1,3 +1,9 @@
2010-01-23 Richard Sandiford <r.sandiford@uk.ibm.com>
* ld-powerpc/aix-ref-1-32.od, ld-powerpc/aix-ref-1-64.od,
ld-powerpc/aix-ref-1.s: New tests.
* ld-powerpc/aix52.exp: Run them.
2010-01-14 H.J. Lu <hongjiu.lu@intel.com>
* ld-elf/orphan4.d: Support 64bit targets.

30
ld/testsuite/ld-powerpc/aix-ref-1-32.od Normal file
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@ -0,0 +1,30 @@
.*
Disassembly of section \.text:
.* <foo1>:
.*: 60 00 00 00 oril r0,r0,0
.*: R_REF foo2\+.*
.*: 80 22 00 00 l r1,0\(r2\)
.*: R_TOC stuff\+.*
.*: 4e 80 00 20 br
.* <foo2>:
.*: 60 00 00 00 oril r0,r0,0
.*: R_REF foo6\+.*
.*: R_REF foo4\+.*
.*: 80 22 00 00 l r1,0\(r2\)
.*: R_TOC stuff\+.*
.* <foo4>:
.*: 60 00 00 00 oril r0,r0,0
.*: 80 22 00 00 l r1,0\(r2\)
.*: R_TOC stuff\+.*
.* <foo6>:
.*: 60 00 00 00 oril r0,r0,0
.*: 80 22 00 00 l r1,0\(r2\)
.*: R_TOC stuff\+.*
\.\.\.

30
ld/testsuite/ld-powerpc/aix-ref-1-64.od Normal file
View file

@ -0,0 +1,30 @@
.*
Disassembly of section \.text:
.* <foo1>:
.*: 60 00 00 00 nop
.*: R_REF foo2\+.*
.*: e8 22 00 00 ld r1,0\(r2\)
.*: R_TOC stuff\+.*
.*: 4e 80 00 20 blr
.* <foo2>:
.*: 60 00 00 00 nop
.*: R_REF foo6\+.*
.*: R_REF foo4\+.*
.*: e8 22 00 00 ld r1,0\(r2\)
.*: R_TOC stuff\+.*
.* <foo4>:
.*: 60 00 00 00 nop
.*: e8 22 00 00 ld r1,0\(r2\)
.*: R_TOC stuff\+.*
.* <foo6>:
.*: 60 00 00 00 nop
.*: e8 22 00 00 ld r1,0\(r2\)
.*: R_TOC stuff\+.*
\.\.\.

57
ld/testsuite/ld-powerpc/aix-ref-1.s Normal file
View file

@ -0,0 +1,57 @@
.macro loadtoc,sym
.if size == 32
lwz 1,\sym(2)
.else
ld 1,\sym(2)
.endif
.endm
.toc
LC01: .tc stuff[TC],stuff[RW]
.globl foo1
.csect foo1[pr]
foo1:
.align 8
nop
loadtoc LC01
.globl foo2
.csect foo2[pr]
foo2:
nop
loadtoc LC01
.ref foo4 , foo6
.globl foo3
.csect foo3[pr]
foo3:
nop
loadtoc LC01
.globl foo4
.csect foo4[pr]
foo4:
nop
loadtoc LC01
.globl foo5
.csect foo5[pr]
foo5:
nop
loadtoc LC01
.ref foo3
.globl foo6
.csect foo6[pr]
foo6:
nop
loadtoc LC01
.csect foo1[pr]
blr
.ref foo2
.csect stuff[rw]
stuff:
.long 1

5
ld/testsuite/ld-powerpc/aix52.exp
View file

@ -196,6 +196,11 @@ set aix52tests {
"" {aix-rel-1.s}
{{objdump -hr aix-rel-1.od}} "aix-rel-1.ro"}
{".ref test 1" "-efoo1"
"" {aix-ref-1.s}
{{objdump -dr aix-ref-1-SIZE.od}}
"aix-ref-1"}
{"Weak test 1 (rel)" "-r"
"" {aix-weak-1a.s aix-weak-1b.s}
{{nm {} aix-weak-1-rel.nd} {objdump -h aix-weak-1-rel.hd}}