Increment PLT reference count for locally defined local IFUNC symbols
in shared object since STT_GNU_IFUNC symbol must go through PLT even
if it is locally defined and undefined symbol may turn out to be a
STT_GNU_IFUNC symbol later.
bfd/
PR ld/19784
* elf32-i386.c (elf_i386_check_relocs): Increment PLT reference
count for locally defined local IFUNC symbols in shared object.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
ld/
PR ld/19784
* testsuite/ld-i386/i386.exp: Remove pr19636-2e-nacl test.
* testsuite/ld-i386/pr19636-2e-nacl.d: Moved to ...
* testsuite/ld-i386/pr19636-2e.d: Here. Remove notarget.
* testsuite/ld-ifunc/ifunc.exp: Run PR ld/19784 tests.
* testsuite/ld-ifunc/pass.out: New file.
* testsuite/ld-ifunc/pr19784a.c: Likewise.
* testsuite/ld-ifunc/pr19784b.c: Likewise.
* testsuite/ld-ifunc/pr19784c.c: Likewise.
Since compiler may pass --as-needed to ld by default, link .o file
before .so file in ifunc tests.
PR ld/19774
* testsuite/ld-ifunc/ifunc.exp: Link tmpdir/pr18808a.o before
tmpdir/libpr18808.so. Link tmpdir/pr18841a.o before
tmpdir/libpr18841b.so and tmpdir/libpr18841c.so. Test
--as-needed for pr18841c.
R_386_GOT32X, R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations
retrieve the symbol address via its GOT slot. If the symbol address is
known at the link-time, we can use it directly by changing instruction
encoding. Indirect branch can only be converted to PC relative direct
branch. MOV can be changed to LEA or encoded differently with signed
address. The subset of binary operations can be encoded only with
signed address.
If undefined weak symbol is resolved to zero link-time, we can use it
as address. Zero addresss can't used with PC relative direct branch
when PIC is true since the current PC is unknown. In 64-bit, 32-bit
relocation for PC relatiave direct branch to zero may also overflow.
If this optimization causes relocation overflow, --no-relax can be used
to work around it.
bfd/
PR ld/19609
* elf32-i386.c (elf_i386_convert_load): Convert to R_386_32 for
load with locally bound symbols if PIC is false or there is no
base register. Optimize branch to 0 if PIC is false.
(elf_i386_relocate_section): Don't generate dynamic relocations
against undefined weak symbols if PIC is false.
* elf64-x86-64.c (elf_x86_64_convert_load): Disable optimization
if we can't estimate relocation overflow with --no-relax.
Convert to R_X86_64_32S/R_X86_64_32 for load with locally bound
symbols if PIC is false. Optimize branch to 0 if PIC is false.
(elf_x86_64_relocate_section): Don't generate dynamic relocations
against undefined weak symbols if PIC is false.
ld/
PR ld/19609
* testsuite/ld-i386/got1.dd: Updated.
* testsuite/ld-i386/lea1c.d: Likewise.
* testsuite/ld-i386/load1-nacl.d: Likewise.
* testsuite/ld-i386/load1.d: Likewise.
* testsuite/ld-i386/load4b.d: Likewise.
* testsuite/ld-i386/load5b.d: Likewise.
* testsuite/ld-i386/mov1b.d: Likewise.
* testsuite/ld-x86-64/mov1b.d: Likewise.
* testsuite/ld-x86-64/mov1d.d: Likewise.
* testsuite/ld-ifunc/ifunc-21-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise.
* testsuite/ld-ifunc/ifunc-22-i386.d: Likewise.
* testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise.
* testsuite/ld-x86-64/gotpcrel1.dd: Likewise.
* testsuite/ld-x86-64/lea1a.d: Likewise.
* testsuite/ld-x86-64/lea1b.d: Likewise.
* testsuite/ld-x86-64/lea1c.d: Likewise.
* testsuite/ld-x86-64/lea1d.d: Likewise.
* testsuite/ld-x86-64/lea1e.d: Likewise.
* testsuite/ld-x86-64/lea1f.d: Likewise.
* testsuite/ld-x86-64/mov1b.d: Likewise.
* testsuite/ld-x86-64/mov1d.d: Likewise.
* testsuite/ld-x86-64/pr13082-3b.d: Likewise.
* testsuite/ld-x86-64/pr13082-4b.d: Likewise.
* testsuite/ld-x86-64/lea1.s: Add tests for 32-bit registers.
* testsuite/ld-i386/pr19609-1.s: New file.
* testsuite/ld-i386/pr19609-1a.d: Likewise.
* testsuite/ld-i386/pr19609-1b.d: Likewise.
* testsuite/ld-i386/pr19609-1c.d: Likewise.
* testsuite/ld-i386/pr19609-1d.d: Likewise.
* testsuite/ld-i386/pr19609-1e.d: Likewise.
* testsuite/ld-i386/pr19609-1f.d: Likewise.
* testsuite/ld-i386/pr19609-1g.d: Likewise.
* testsuite/ld-i386/pr19609-1h.d: Likewise.
* testsuite/ld-i386/pr19609-1i.d: Likewise.
* testsuite/ld-i386/pr19609-2.s: Likewise.
* testsuite/ld-i386/pr19609-2a.d: Likewise.
* testsuite/ld-i386/pr19609-2b.d: Likewise.
* testsuite/ld-i386/pr19609-2c.d: Likewise.
* testsuite/ld-i386/undefweak.s: Likewise.
* testsuite/ld-i386/undefweaka.d: Likewise.
* testsuite/ld-i386/undefweakb.d: Likewise.
* testsuite/ld-x86-64/pr13082-3c.d: Likewise.
* testsuite/ld-x86-64/pr13082-3d.d: Likewise.
* testsuite/ld-x86-64/pr19609-1.s: Likewise.
* testsuite/ld-x86-64/pr19609-1a.d: Likewise.
* testsuite/ld-x86-64/pr19609-1b.d: Likewise.
* testsuite/ld-x86-64/pr19609-1c.d: Likewise.
* testsuite/ld-x86-64/pr19609-1d.d: Likewise.
* testsuite/ld-x86-64/pr19609-1e.d: Likewise.
* testsuite/ld-x86-64/pr19609-1f.d: Likewise.
* testsuite/ld-x86-64/pr19609-1g.d: Likewise.
* testsuite/ld-x86-64/pr19609-1h.d: Likewise.
* testsuite/ld-x86-64/pr19609-1i.d: Likewise.
* testsuite/ld-x86-64/pr19609-1j.d: Likewise.
* testsuite/ld-x86-64/pr19609-1k.d: Likewise.
* testsuite/ld-x86-64/pr19609-1l.d: Likewise.
* testsuite/ld-x86-64/pr19609-1m.d: Likewise.
* testsuite/ld-x86-64/pr19609-2.s: Likewise.
* testsuite/ld-x86-64/pr19609-2a.d: Likewise.
* testsuite/ld-x86-64/pr19609-2b.d: Likewise.
* testsuite/ld-x86-64/pr19609-2c.d: Likewise.
* testsuite/ld-x86-64/pr19609-2d.d: Likewise.
* testsuite/ld-x86-64/pr19609-3.s: Likewise.
* testsuite/ld-x86-64/pr19609-3a.d: Likewise.
* testsuite/ld-x86-64/pr19609-3b.d: Likewise.
* testsuite/ld-x86-64/pr19609-4.s: Likewise.
* testsuite/ld-x86-64/pr19609-4a.d: Likewise.
* testsuite/ld-x86-64/pr19609-4b.d: Likewise.
* testsuite/ld-x86-64/pr19609-4c.d: Likewise.
* testsuite/ld-x86-64/pr19609-4d.d: Likewise.
* testsuite/ld-x86-64/pr19609-4e.d: Likewise.
* testsuite/ld-x86-64/pr19609-5.s: Likewise.
* testsuite/ld-x86-64/pr19609-5a.d: Likewise.
* testsuite/ld-x86-64/pr19609-5b.d: Likewise.
* testsuite/ld-x86-64/pr19609-5c.d: Likewise.
* testsuite/ld-x86-64/pr19609-5d.d: Likewise.
* testsuite/ld-x86-64/pr19609-5e.d: Likewise.
* testsuite/ld-x86-64/pr19609-6.s: Likewise.
* testsuite/ld-x86-64/pr19609-6a.d: Likewise.
* testsuite/ld-x86-64/pr19609-6b.d: Likewise.
* testsuite/ld-x86-64/pr19609-6c.d: Likewise.
* testsuite/ld-x86-64/pr19609-6d.d: Likewise.
* testsuite/ld-x86-64/pr19609-7.s: Likewise.
* testsuite/ld-x86-64/pr19609-7a.d: Likewise.
* testsuite/ld-x86-64/pr19609-7b.d: Likewise.
* testsuite/ld-x86-64/pr19609-7c.d: Likewise.
* testsuite/ld-x86-64/pr19609-7d.d: Likewise.
* testsuite/ld-i386/i386.exp: Run undefweak tests and tests for
PR ld/19609.
* testsuite/ld-x86-64/x86-64.exp: Run pr13082-3c, pr13082-3d
and tests for PR ld/19609.
This patch adds support for the R_X86_64_GOTPCRELX and
R_X86_64_REX_GOTPCRELX relocations proposed in
https://groups.google.com/forum/#!topic/x86-64-abi/n9AWHogmVY0
to gas and ld. It updates gas to generate R_X86_64_GOTPCRELX,
R_X86_64_REX_GOTPCRELX if there is a REX prefix, relocation for memory
operand, foo@GOTPCREL(%rip). With the locally defined symbol, foo, we
convert
mov foo@GOTPCREL(%rip), %reg
to
lea foo(%rip), %reg
and convert
call/jmp *foo@GOTPCREL(%rip)
to
nop call foo/jmp foo nop
When PIC is false, convert
test %reg, foo@GOTPCREL(%rip)
to
test $foo, %reg
and convert
binop foo@GOTPCREL(%rip), %reg
to
binop $foo, %reg
where binop is one of adc, add, and, cmp, or, sbb, sub, xor instructions.
bfd/
* elf64-x86-64.c: Include opcode/i386.h.
(x86_64_elf_howto_table): Add R_X86_64_GOTPCRELX and
R_X86_64_REX_GOTPCRELX.
(R_X86_64_standard): Replace R_X86_64_PLT32_BND with
R_X86_64_REX_GOTPCRELX.
(x86_64_reloc_map): Add BFD_RELOC_X86_64_GOTPCRELX and
BFD_RELOC_X86_64_REX_GOTPCRELX.
(need_convert_mov_to_lea): Renamed to ...
(need_convert_load): This.
(elf_x86_64_check_relocs): Handle R_X86_64_GOTPCRELX and
R_X86_64_REX_GOTPCRELX. Replace need_convert_mov_to_lea with
need_convert_load.
(elf_x86_64_gc_sweep_hook): Handle R_X86_64_GOTPCRELX and
R_X86_64_REX_GOTPCRELX.
(elf_x86_64_size_dynamic_sections): Likewise.
(elf_x86_64_relocate_section): Likewise.
(elf_x86_64_convert_mov_to_lea): Renamed to ...
(elf_x86_64_convert_load): This. Replace need_convert_mov_to_lea
with need_convert_load. Support R_X86_64_GOTPCRELX and
R_X86_64_REX_GOTPCRELX transformations.
* reloc.c (BFD_RELOC_X86_64_GOTPCRELX): New.
(BFD_RELOC_X86_64_REX_GOTPCRELX): Likewise.
* bfd-in2.h: Regenerated.
* libbfd.h: Likewise.
gas/
* config/tc-i386.c (tc_i386_fix_adjustable): Handle
BFD_RELOC_X86_64_GOTPCRELX and BFD_RELOC_X86_64_REX_GOTPCRELX.
(tc_gen_reloc): Likewise.
(i386_validate_fix): Generate BFD_RELOC_X86_64_GOTPCRELX or
BFD_RELOC_X86_64_REX_GOTPCRELX if fx_tcbit2 is set.
* config/tc-i386.h (TC_FORCE_RELOCATION_LOCAL): Also return
true for BFD_RELOC_X86_64_GOTPCRELX and
BFD_RELOC_X86_64_REX_GOTPCRELX.
gas/testsuite/
* gas/i386/i386.exp: Run x86-64-gotpcrel.
* gas/i386/x86-64-gotpcrel.d: New file.
* gas/i386/x86-64-gotpcrel.s: Likewise.
* gas/i386/ilp32/x86-64-gotpcrel.d: Likewise.
* gas/i386/x86-64-localpic.d: Replace R_X86_64_GOTPCREL with
R_X86_64_REX_GOTPCRELX.
* gas/i386/ilp32/x86-64-localpic.d: Likewise.
include/elf/
* x86-64.h (R_X86_64_GOTPCRELX): New.
(R_X86_64_REX_GOTPCRELX): Likewise.
ld/testsuite/
* ld-ifunc/ifunc-5r-local-x86-64.d: Replace R_X86_64_GOTPCREL
with R_X86_64_REX_GOTPCRELX.
* ld-x86-64/plt-main1.rd: Likewise.
* ld-x86-64/plt-main3.rd: Likewise.
* ld-x86-64/plt-main4.rd: Likewise.
* ld-x86-64/gotpcrel1.dd: New file.
* ld-x86-64/gotpcrel1.out: Likewise.
* ld-x86-64/gotpcrel1a.S: Likewise.
* ld-x86-64/gotpcrel1b.c: Likewise.
* ld-x86-64/gotpcrel1c.c: Likewise.
* ld-x86-64/gotpcrel1d.S: Likewise.
* ld-x86-64/load1.s: Likewise.
* ld-x86-64/load1a.d: Likewise.
* ld-x86-64/load1b.d: Likewise.
* ld-x86-64/load1c.d: Likewise.
* ld-x86-64/load1d.d: Likewise.
* ld-x86-64/x86-64.exp: Run load1a, load1b, load1c and load1d
tests. Run gotpcrel1 test.
This patch makes sure that compiler won't optimize out loading function
into a stack variable.
* ld-ifunc/ifunc-main.c (get_bar): New function.
(main): Use it.
Relocations against .got.plt section may not be in the same order as
entries in PLT section. It is incorrect to assume that the Ith reloction
index against .got.plt section always maps to the (I + 1)th entry in PLT
section. This patch matches the .got.plt relocation offset/index in PLT
entry against the index in .got.plt relocation table. It only checks
R_*_JUMP_SLOT and R_*_IRELATIVE relocations. It ignores R_*_TLS_DESC
and R_*_TLSDESC relocations since they have different PLT entries.
bfd/
PR binutils/17154
* elf32-i386.c (elf_i386_plt_sym_val): Only match R_*_JUMP_SLOT
and R_*_IRELATIVE relocation offset with PLT entry.
* elf64-x86-64.c (elf_x86_64_plt_sym_val): Likewise.
(elf_x86_64_plt_sym_val_offset_plt_bnd): New.
(elf_x86_64_get_synthetic_symtab): Use it.
ld/testsuite/
PR binutils/17154
* ld-ifunc/pr17154-i386.d: New file.
* ld-ifunc/pr17154-x86-64.d: Likewise.
* ld-ifunc/pr17154-x86.s: Likewise.
* ld-x86-64/bnd-ifunc-2.d: Likewise.
* ld-x86-64/bnd-ifunc-2.s: Likewise.
* ld-x86-64/mpx.exp: Run bnd-ifunc-2.
* ld-x86-64/tlsdesc-nacl.pd: Updated.
* ld-x86-64/tlsdesc.pd: Likewise.
After resolving a versioned reference, foo@VER1, to a default versioned
definition, foo@@VER1, from a shared object, we also merge it with
the existing regular default symbol definition, foo. When foo is IFUNC
and foo@@VER1 aren't, we will merge 2 incompatible definitions. This
patch avoids merging foo@@VER1 definition with foo definition if
one is IFUNC and the other isn't.
On PowerPC64 ELFv2 readelf emits [<localentry>: 8] describing extra
symbol st_other bits.
* ld-elfvers/vers24.rd: Allow extra readelf output after
symbol visibility.
* ld-ifunc/ifunc.exp: Likewise.
non_got_ref may not be set when building shared library. We need to set
non_got_ref if there are any non-PIC relocations. But we only did this
when there were no PLT/GOT relocations. It failed when there is a PLT
relocation. This checkin moves the non_got_ref check out.
bfd/
2013-04-15 H.J. Lu <hongjiu.lu@intel.com>
PR ld/15371
* elf-ifunc.c (_bfd_elf_allocate_ifunc_dyn_relocs): Check
regular reference without non-GOT reference when building
shared library.
ld/testsuite/
2013-04-15 H.J. Lu <hongjiu.lu@intel.com>
PR ld/15371
* ld-ifunc/ifunc-20-i386.d: New file.
* ld-ifunc/ifunc-20-x86-64.d: Likewise.
* ld-ifunc/ifunc-20.s: Likewise.
diff --git a/bfd/elf-ifunc.c b/bfd/elf-ifunc.c
index e56427d..7e7ec36 100644
--- a/bfd/elf-ifunc.c
+++ b/bfd/elf-ifunc.c
@@ -187,23 +187,20 @@ _bfd_elf_allocate_ifunc_dyn_relocs (struct bfd_link_info *info,
htab = elf_hash_table (info);
+ /* When building shared library, we need to handle the case where it is
+ marked with regular reference, but not non-GOT reference since the
+ non-GOT reference bit may not be set here. */
+ if (info->shared && !h->non_got_ref && h->ref_regular)
+ for (p = *head; p != NULL; p = p->next)
+ if (p->count)
+ {
+ h->non_got_ref = 1;
+ goto keep;
+ }
+
/* Support garbage collection against STT_GNU_IFUNC symbols. */
if (h->plt.refcount <= 0 && h->got.refcount <= 0)
{
- /* When building shared library, we need to handle the case
- where it is marked with regular reference, but not non-GOT
- reference. It may happen if we didn't see STT_GNU_IFUNC
- symbol at the time when checking relocations. */
- if (info->shared
- && !h->non_got_ref
- && h->ref_regular)
- for (p = *head; p != NULL; p = p->next)
- if (p->count)
- {
- h->non_got_ref = 1;
- goto keep;
- }
-
h->got = htab->init_got_offset;
h->plt = htab->init_plt_offset;
*head = NULL;
diff --git a/ld/testsuite/ld-ifunc/ifunc-20-i386.d b/ld/testsuite/ld-ifunc/ifunc-20-i386.d
new file mode 100644
index 0000000..9373fcf
--- /dev/null
+++ b/ld/testsuite/ld-ifunc/ifunc-20-i386.d
@@ -0,0 +1,13 @@
+#source: ifunc-20.s
+#ld: -shared -m elf_i386 -z nocombreloc
+#as: --32
+#readelf: -r --wide
+#target: x86_64-*-* i?86-*-*
+
+Relocation section '.rel.ifunc' at offset 0x[0-9a-f]+ contains 1 entries:
+[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
+[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_32[ ]+ifunc\(\)[ ]+ifunc
+
+Relocation section '.rel.plt' at offset 0x[0-9a-f]+ contains 1 entries:
+[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
+[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_386_JUMP_SLOT[ ]+ifunc\(\)[ ]+ifunc
diff --git a/ld/testsuite/ld-ifunc/ifunc-20-x86-64.d b/ld/testsuite/ld-ifunc/ifunc-20-x86-64.d
new file mode 100644
index 0000000..39492d4
--- /dev/null
+++ b/ld/testsuite/ld-ifunc/ifunc-20-x86-64.d
@@ -0,0 +1,13 @@
+#source: ifunc-20.s
+#ld: -shared -m elf_x86_64 -z nocombreloc
+#as: --64
+#readelf: -r --wide
+#target: x86_64-*-*
+
+Relocation section '.rela.ifunc' at offset 0x[0-9a-f]+ contains 1 entries:
+[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
+[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_64[ ]+ifunc\(\)[ ]+ifunc \+ 0
+
+Relocation section '.rela.plt' at offset 0x[0-9a-f]+ contains 1 entries:
+[ ]+Offset[ ]+Info[ ]+Type[ ]+.*
+[0-9a-f]+[ ]+[0-9a-f]+[ ]+R_X86_64_JUMP_SLOT[ ]+ifunc\(\)[ ]+ifunc \+ 0
diff --git a/ld/testsuite/ld-ifunc/ifunc-20.s b/ld/testsuite/ld-ifunc/ifunc-20.s
new file mode 100644
index 0000000..9d45455
--- /dev/null
+++ b/ld/testsuite/ld-ifunc/ifunc-20.s
@@ -0,0 +1,16 @@
+ .section .data.rel,"aw",@progbits
+ .globl ifunc_ptrt
+ .type ifunc_ptr, @object
+ifunc_ptr:
+ .dc.a ifunc
+ .text
+ .type ifunc, @gnu_indirect_function
+ .globl ifunc
+ifunc:
+ ret
+ .size ifunc, .-ifunc
+ .type bar, @function
+ .globl bar
+bar:
+ call ifunc@PLT
+ .size bar, .-bar
bfd/
PR ld/14591
* elf-bfd.h (_bfd_elf_merge_symbol): Add an argument to return
if the old symbol is weak.
* elf32-sh-symbian.c (sh_symbian_relocate_section): Update
_bfd_elf_merge_symbol call.
* elflink.c (_bfd_elf_merge_symbol): Add an argument to return
if the old symbol is weak.
(_bfd_elf_add_default_symbol): Update _bfd_elf_merge_symbol
call.
(elf_link_add_object_symbols): Don't update symbol type from a
weak definition. Update symbol type from a common symbol when
overriding a weak symbol.
ld/testsuite/
PR ld/14591
* ld-elf/comm-data.exp (run_ld_link_tests): Add comm-data3a and
comm-data3b tests.
* ld-ifunc/ifunc.exp (run_ld_link_exec_tests): New.
* ld-elf/comm-data3.sd: New file.
* ld-elf/comm-data3a.s: Likewise.
* ld-elf/comm-data3b.s: Likewise.
* ld-ifunc/ifunc-17a-i386.d: Likewise.
* ld-ifunc/ifunc-17a-x86-64.d: Likewise.
* ld-ifunc/ifunc-17a.s: Likewise.
* ld-ifunc/ifunc-17b-i386.d: Likewise.
* ld-ifunc/ifunc-17b-x86-64.d: Likewise.
* ld-ifunc/ifunc-17b.s: Likewise.
* ld-ifunc/ifunc-common-1.out: Likewise.
* ld-ifunc/ifunc-common-1a.c: Likewise.
* ld-ifunc/ifunc-common-1b.c: Likewise.
Allows escape codes in names.
(s_comm_internal): Use read_symbol_name.
(s_globl, s_lsym, s_set, s_weakref): Likewise.
* doc/as.texinfo: Document support for multibyte characters in
symbol names.
* gas/elf/syms.s: New test - checks the generation of multibyte
symbol names.
* gas/elf/syms.d: New file - expected readelf output.
* gas/elf/elf.exp: Add syms.
* readelf.c (print_symbol): Display multibyte characters in symbol
names.
(process_section_headers): Use print_symbol.
* ld-ifunc/ifunc-13a-i386.s: Fix use of .global directive.
* ld-ifunc/ifunc-15a-i385.s: Likewise.
bfd/
2011-10-21 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13302
* elf32-i386.c (elf_i386_link_hash_table): Add next_jump_slot_index
and next_irelative_index.
(elf_i386_link_hash_table_create): Initialize next_jump_slot_index
and next_irelative_index.
(elf_i386_allocate_dynrelocs): Increment reloc_count instead of
next_tls_desc_index.
(elf_i386_size_dynamic_sections): Set next_tls_desc_index and
next_irelative_index from reloc_count.
(elf_i386_finish_dynamic_symbol): Put R_386_IRELATIVE after
R_386_JUMP_SLOT.
* elf64-x86-64.c (elf_x86_64_link_hash_table): Add
next_jump_slot_index and next_irelative_index.
(elf_x86_64_link_hash_table_create): Initialize
next_jump_slot_index and next_irelative_index.
(elf_x86_64_size_dynamic_sections): Set next_irelative_index
from reloc_count.
(elf_x86_64_finish_dynamic_symbol): Put R_X86_64_IRELATIVE after
R_X86_64_JUMP_SLOT.
ld/testsuite/
2011-10-21 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13302
* ld-ifunc/ifunc-16-i386.d: New.
* ld-ifunc/ifunc-16-x86-64.d: Likewise.
* ld-ifunc/ifunc-16-x86.s: Likewise.
bfd/
2010-02-18 H.J. Lu <hongjiu.lu@intel.com>
* elf32-i386.c (elf_i386_add_symbol_hook): Don't set
has_ifunc_symbols if the symbol comes from a shared library.
* elf32-ppc.c (ppc_elf_add_symbol_hook): Likewise.
* elf32-sparc.c (elf32_sparc_add_symbol_hook): Likewise.
* elf64-ppc.c (ppc64_elf_add_symbol_hook): Likewise.
* elf64-sparc.c (elf64_sparc_add_symbol_hook): Likewise.
* elf64-x86-64.c (elf64_x86_64_add_symbol_hook): Likewise.
ld/testsuite/
2010-02-18 H.J. Lu <hongjiu.lu@intel.com>
* ld-ifunc/ifunc.exp: Expect System V OSABI in dynamic
ifunc-using executable.
* elf/sparc.h (R_SPARC_JMP_IREL, R_SPARC_IRELATIVE): Define.
bfd/
* reloc.c (BFD_RELOC_SPARC_JMP_IREL): New.
(BFD_RELOC_SPARC_IRELATIVE): Likewise.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elfxx-sparc.h (_bfd_sparc_elf_link_hash_table): Add loc_hash_table
and loc_hash_memory.
(_bfd_sparc_elf_link_hash_table_free): Declare.
* elf32-sparc.c (elf32_sparc_add_symbol_hook): New.
(elf_backend_add_symbol_hook, elf_backend_post_process_headers,
bfd_elf32_bfd_link_hash_table_free): Define.
* elf64-sparc.c (elf64_sparc_add_symbol_hook): Set
has_ifunc_symbols if STT_GNU_IFUNC.
(bfd_elf64_bfd_link_hash_table_free): Define.
(elf_backend_post_process_headers): Define always.
* elfxx-sparc.c (sparc_jmp_irel_howto, sparc_irelative_howto): New.
(sparc_reloc_map): Add entries for new IFUNC relocs.
(_bfd_sparc_elf_reloc_type_lookup): Handle new IFUNC relocs.
(_bfd_sparc_elf_info_to_howto_ptr): Likewise.
(elf_sparc_local_htab_hash, elf_sparc_local_htab_eq,
elf_sparc_get_local_sym_hash): New.
(_bfd_sparc_elf_create_dynamic_sections): Move PLT ops initialization
from here...
(_bfd_sparc_elf_link_hash_table_create): ... to here. Allocate
local hash table.
(_bfd_sparc_elf_link_hash_table_free): New.
(create_ifunc_sections): New.
(_bfd_sparc_elf_check_relocs): Unconditionally assign htab->elf.dynobj
and call create_ifunc_sections(). For local STT_GNU_IFUNC symbols
cons up a fake local hash table entry for it. Unconditionally add
a PLT refcount for STT_GNU_IFUNC symbols when h->def_regular. Count
dyn relocs for ifunc.
(_bfd_sparc_elf_adjust_dynamic_symbol): Handle ifunc.
(allocate_dynrelocs): Unconditionally emit a PLT entry when STT_GNU_IFUNC
and h->def_regular. Count GOT dyn relocs for ifunc.
(allocate_local_dynrelocs): New function.
(_bfd_sparc_elf_size_dynamic_sections): Invoke it over the local hash table.
Emit dynamic relocs to irelplt when not shared. Treat iplt like splt.
(_bfd_sparc_elf_relocate_section): Handle ifunc relocations by hand.
(_bfd_sparc_elf_finish_dynamic_symbol): Adjust for non-dynamic ifunc plt
in iplt/irelplt.
ld/testsuite/
* ld-ifunc/ifunc.exp: Run for sparc.
