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* coff-rs6000.c (xcoff_ppc_relocate_section): Allow undefined
	symbols to be left unimported when linking statically.
	* xcofflink.c (xcoff_link_add_symbols): Ignore global linkage
	code when linking statically.

ld/testsuite/
	* ld-powerpc/aix-glink-3.s, ld-powerpc/aix-glink-3a.s,
	ld-powerpc/aix-glink-3b.s, ld-powerpc/aix-glink-3.dd,
	ld-powerpc/aix-glink-3-32.d, ld-powerpc/aix-glink-3-64.d: New tests.
	* ld-powerpc/aix52.exp: Run them.  Move the lineno tests to maintain
	alphabetical order.
This commit is contained in:
Richard Sandiford 2009-06-02 18:51:34 +00:00
parent 7afd84dc1f
commit 94313f361f
11 changed files with 116 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
bfd/ChangeLog
View File

@ -1,3 +1,10 @@
2009-06-02 Richard Sandiford <r.sandiford@uk.ibm.com>
* coff-rs6000.c (xcoff_ppc_relocate_section): Allow undefined
symbols to be left unimported when linking statically.
* xcofflink.c (xcoff_link_add_symbols): Ignore global linkage
code when linking statically.
2009-06-02 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_check_relocs): Increment

2
bfd/coff-rs6000.c
View File

@ -3460,6 +3460,8 @@ xcoff_ppc_relocate_section (output_bfd, info, input_bfd,
else
{
BFD_ASSERT (info->relocatable
|| (info->static_link
&& (h->flags & XCOFF_WAS_UNDEFINED) != 0)
|| (h->flags & XCOFF_DEF_DYNAMIC) != 0
|| (h->flags & XCOFF_IMPORT) != 0);
}

39
bfd/xcofflink.c
View File

@ -1889,6 +1889,15 @@ xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
|| sym._n._n_n._n_offset == 0)
copy = TRUE;
/* Ignore global linkage code when linking statically. */
if (info->static_link
&& (smtyp == XTY_SD || smtyp == XTY_LD)
&& aux.x_csect.x_smclas == XMC_GL)
{
section = bfd_und_section_ptr;
value = 0;
}
/* The AIX linker appears to only detect multiple symbol
definitions when there is a reference to the symbol. If
a symbol is defined multiple times, and the only
@ -1913,8 +1922,7 @@ xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
We also have to handle the case of statically linking a
shared object, which will cause symbol redefinitions,
although this is an easier case to detect. */
if (info->output_bfd->xvec == abfd->xvec)
else if (info->output_bfd->xvec == abfd->xvec)
{
if (! bfd_is_und_section (section))
*sym_hash = xcoff_link_hash_lookup (xcoff_hash_table (info),
@ -1934,23 +1942,8 @@ xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
&& ! bfd_is_com_section (section))
{
/* This is a second definition of a defined symbol. */
if ((abfd->flags & DYNAMIC) != 0
&& ((*sym_hash)->smclas != XMC_GL
|| aux.x_csect.x_smclas == XMC_GL
|| ((*sym_hash)->root.u.def.section->owner->flags
& DYNAMIC) == 0))
{
/* The new symbol is from a shared library, and
either the existing symbol is not global
linkage code or this symbol is global linkage
code. If the existing symbol is global
linkage code and the new symbol is not, then
we want to use the new symbol. */
section = bfd_und_section_ptr;
value = 0;
}
else if (((*sym_hash)->flags & XCOFF_DEF_REGULAR) == 0
&& ((*sym_hash)->flags & XCOFF_DEF_DYNAMIC) != 0)
if (((*sym_hash)->flags & XCOFF_DEF_REGULAR) == 0
&& ((*sym_hash)->flags & XCOFF_DEF_DYNAMIC) != 0)
{
/* The existing symbol is from a shared library.
Replace it. */
@ -2049,7 +2042,9 @@ xcoff_link_add_symbols (bfd *abfd, struct bfd_link_info *info)
{
int flag;
if (smtyp == XTY_ER || smtyp == XTY_CM)
if (smtyp == XTY_ER
|| smtyp == XTY_CM
|| section == bfd_und_section_ptr)
flag = XCOFF_REF_REGULAR;
else
flag = XCOFF_DEF_REGULAR;
@ -2741,6 +2736,10 @@ xcoff_mark_symbol (struct bfd_link_info *info, struct xcoff_link_hash_entry *h)
/* We handle writing out the contents of the descriptor in
xcoff_write_global_symbol. */
}
else if (info->static_link)
/* We can't get a symbol value dynamically, so just assume
that it's undefined. */
h->flags |= XCOFF_WAS_UNDEFINED;
else if ((h->flags & XCOFF_CALLED) != 0)
{
/* This is a function symbol for which we need to create

8
ld/testsuite/ChangeLog
View File

@ -1,3 +1,11 @@
2009-06-02 Richard Sandiford <r.sandiford@uk.ibm.com>
* ld-powerpc/aix-glink-3.s, ld-powerpc/aix-glink-3a.s,
ld-powerpc/aix-glink-3b.s, ld-powerpc/aix-glink-3.dd,
ld-powerpc/aix-glink-3-32.d, ld-powerpc/aix-glink-3-64.d: New tests.
* ld-powerpc/aix52.exp: Run them. Move the lineno tests to maintain
alphabetical order.
2009-06-02 H.J. Lu <hongjiu.lu@intel.com>
* ld-ifunc/ifunc-5-i386.d: Renamed to ...

5
ld/testsuite/ld-powerpc/aix-glink-3-32.d Normal file
View File

@ -0,0 +1,5 @@
#name: Glink test 3 (error) (32-bit)
#source: aix-glink-3.s
#as: -a32
#ld: -b32 -bnoautoimp tmpdir/aix-glink-3b.so
#error: undefined reference to `\.g'

5
ld/testsuite/ld-powerpc/aix-glink-3-64.d Normal file
View File

@ -0,0 +1,5 @@
#name: Glink test 3 (error) (64-bit)
#source: aix-glink-3.s
#as: -a64
#ld: -b64 -bnoautoimp tmpdir/aix64-glink-3b.so
#error: undefined reference to `\.g'

14
ld/testsuite/ld-powerpc/aix-glink-3.dd Normal file
View File

@ -0,0 +1,14 @@
.*
Disassembly of section \.text:
0*10000000 <\.f>:
*10000000: 48 00 00 05 bl 10000004 <\.g>
0*10000004 <\.g>:
*10000004: 4e 80 00 20 bl?r
0*10000008 <__start>:
*10000008: 4b ff ff f9 bl 10000000 <\.f>

5
ld/testsuite/ld-powerpc/aix-glink-3.s Normal file
View File

@ -0,0 +1,5 @@
.extern .f
.globl __start
.csect __start[PR]
__start:
bl .f

10
ld/testsuite/ld-powerpc/aix-glink-3a.s Normal file
View File

@ -0,0 +1,10 @@
.toc
.globl .g
.csect .g[PR]
.g:
blr
.globl g
.csect g[DS]
g: .long .g,TOC[tc0],0

11
ld/testsuite/ld-powerpc/aix-glink-3b.s Normal file
View File

@ -0,0 +1,11 @@
.toc
.extern .g
.globl .f
.csect .f[PR]
.f:
bl .g
.globl f
.csect f[DS]
f: .long .f,TOC[tc0],0

40
ld/testsuite/ld-powerpc/aix52.exp
View File

@ -145,16 +145,6 @@ set aix52tests {
{{objdump {-D -j.text -j.data} aix-glink-1-SIZE.dd}}
"aix-glink-1.so"}
{"Line number test 1 (no discards)" "-e.main"
"" {aix-lineno-1.s}
{{objdump -dS aix-lineno-1a.dd} {nm {} aix-lineno-1a.nd}}
"aix-lineno-1a.exe"}
{"Line number test 1 (discard locals)" "-e.main -x"
"" {aix-lineno-1.s}
{{objdump -dS aix-lineno-1b.dd} {nm {} aix-lineno-1b.nd}}
"aix-lineno-1b.exe"}
{"Glink test 2 (part a)" "-shared -bE:aix-glink-2a.ex"
"" {aix-glink-2a.s}
{}
@ -176,6 +166,32 @@ set aix52tests {
{{objdump -d aix-glink-2-SIZE.dd}}
"aix-glink-2"}
{"Glink test 3 (shared library a)"
"-shared -bexpall"
"" {aix-glink-3a.s}
{} "aix-glink-3a.so"}
{"Glink test 3 (shared library b)"
"-shared -bexpall"
"" {aix-glink-3b.s}
{} "aix-glink-3b.so"}
{"Glink test 3 (main test)"
"-bnoautoimp tmpdir/aix-glink-3b.so tmpdir/aix-glink-3a.so"
"" {aix-glink-3.s}
{{objdump -d aix-glink-3.dd}}
"aix-glink-3"}
{"Line number test 1 (no discards)" "-e.main"
"" {aix-lineno-1.s}
{{objdump -dS aix-lineno-1a.dd} {nm {} aix-lineno-1a.nd}}
"aix-lineno-1a.exe"}
{"Line number test 1 (discard locals)" "-e.main -x"
"" {aix-lineno-1.s}
{{objdump -dS aix-lineno-1b.dd} {nm {} aix-lineno-1b.nd}}
"aix-lineno-1b.exe"}
{"Relocatable test 1" "-r"
"" {aix-rel-1.s}
{{objdump -hr aix-rel-1.od}} "aix-rel-1.ro"}
@ -236,5 +252,9 @@ foreach test $aix52tests {
}
}
run_dump_test "aix-glink-1-32"
run_dump_test "aix-glink-1-64"
run_dump_test "aix-glink-3-32"
run_dump_test "aix-glink-3-64"
run_dump_test "aix-weak-3-32"
run_dump_test "aix-weak-3-64"