bfd/

	* elfxx-mips.h (_bfd_mips_elf_get_synthetic_symtab): New
	prototype.
	* elf32-mips.c (elf_backend_plt_sym_val): Remove macro.
	(bfd_elf32_get_synthetic_symtab): New macro.
	* elfxx-mips.c (plt_entry): New structure.
	(mips_elf_link_hash_entry): Add use_plt_entry member.
	(mips_elf_link_hash_table): Rename plt_entry_size member to
	plt_mips_entry_size.  Add plt_comp_entry_size, plt_mips_offset,
	plt_comp_offset, plt_got_index entries and plt_header_is_comp
	members.
	(STUB_LW_MICROMIPS, STUB_MOVE_MICROMIPS): New macros.
	(STUB_LUI_MICROMIPS, STUB_JALR_MICROMIPS): Likewise.
	(STUB_ORI_MICROMIPS, STUB_LI16U_MICROMIPS): Likewise.
	(STUB_LI16S_MICROMIPS): Likewise.
	(MICROMIPS_FUNCTION_STUB_NORMAL_SIZE): Likewise.
	(MICROMIPS_FUNCTION_STUB_BIG_SIZE): Likewise.
	(micromips_o32_exec_plt0_entry): New variable.
	(mips16_o32_exec_plt_entry): Likewise.
	(micromips_o32_exec_plt_entry): Likewise.
	(mips_elf_link_hash_newfunc): Initialize use_plt_entry.
	(mips_elf_output_extsym): Update to use gotplt_union's plist
	member rather than offset.
	(mips_elf_gotplt_index): Likewise.  Remove the VxWorks
	restriction.  Use MIPS_ELF_GOT_SIZE to calculate GOT address.
	(mips_elf_count_got_symbols): Update to use gotplt_union's plist
	member rather than offset.
	(mips_elf_calculate_relocation): Handle MIPS16/microMIPS PLT
	entries.
	(_bfd_mips_elf_create_dynamic_sections): Don't set PLT sizes
	here.
	(mips_elf_make_plt_record): New function.
	(_bfd_mips_elf_check_relocs): Update comment.  Record occurences
	of JAL relocations that might need a PLT entry.
	(_bfd_mips_elf_adjust_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Set individual
	PLT entry sizes here.  Handle MIPS16/microMIPS PLT entries.
	Don't set the symbol's value in the symbol table for PLT
	references here.  Don't set the PLT or PLT GOT section sizes
	here.
	(mips_elf_estimate_stub_size): Handle microMIPS stubs.
	(mips_elf_allocate_lazy_stub): Likewise.
	(mips_elf_lay_out_lazy_stubs): Likewise.  Define a _MIPS_STUBS_
	magic symbol.
	(mips_elf_set_plt_sym_value): New function.
	(_bfd_mips_elf_size_dynamic_sections): Set PLT header size and
	PLT and PLT GOT section sizes here.  Set the symbol values in
	the symbol table for PLT references here.  Handle microMIPS
	annotation of the _PROCEDURE_LINKAGE_TABLE_ magic symbol.
	(_bfd_mips_elf_finish_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Handle
	MIPS16/microMIPS PLT entries.  Handle microMIPS stubs.
	(_bfd_mips_vxworks_finish_dynamic_symbol): Update to use
	gotplt_union's plist member rather than offset.  Use
	MIPS_ELF_GOT_SIZE to calculate GOT address.
	(mips_finish_exec_plt): Handle microMIPS PLT.  Return status.
	(_bfd_mips_elf_finish_dynamic_sections): Handle result from
	mips_finish_exec_plt.
	(_bfd_mips_elf_link_hash_table_create): Update to use
	gotplt_union's plist member rather than offset.
	(_bfd_mips_elf_get_synthetic_symtab): New function.

	include/elf/
	* mips.h (ELF_ST_IS_MIPS_PLT): Respect STO_MIPS16 setting.
	(ELF_ST_SET_MIPS_PLT): Likewise.

	gdb/
	* mips-tdep.c (mips_elf_make_msymbol_special): Handle MIPS16 and
	microMIPS synthetic symbols.

	ld/
	* emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed
	as close to .plt as possible.
	* scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and
	$PLT_NEXT_DATA variables.

	ld/testsuite/
	* ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support.
	* ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_
	magic symbol.
	* ld-mips-elf/pic-and-nonpic-3b.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise.
	* ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise.
	* ld-mips-elf/stub-dynsym-1-10000.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-7fff.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-8000.d: Likewise.
	* ld-mips-elf/stub-dynsym-1-fff0.d: Likewise.
	* ld-mips-elf/tlslib-o32.d: Likewise.

	opcodes/
	* mips-dis.c (is_mips16_plt_tail): New function.
	(print_insn_mips16): Handle MIPS16 PLT entry's GOT slot address
	word.
	(is_compressed_mode_p): Handle MIPS16/microMIPS PLT entries.

16 files changed, 69 insertions, 29 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index e701fff..24d90ff 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,10 @@
+2013-06-24  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* emulparams/elf32btsmip.sh: Arrange for .got.plt to be placed
+	as close to .plt as possible.
+	* scripttempl/elf.sc: Handle $INITIAL_READWRITE_SECTIONS and
+	$PLT_NEXT_DATA variables.
+
 2013-06-23  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	* Makefile.am (ALL_EMULATION_SOURCES): Move MIPS ELF emulations to...
diff --git a/ld/emulparams/elf32btsmip.sh b/ld/emulparams/elf32btsmip.sh
index e29e045..f04f39c 100644
--- a/ld/emulparams/elf32btsmip.sh
+++ b/ld/emulparams/elf32btsmip.sh
@@ -8,3 +8,10 @@ LITTLE_OUTPUT_FORMAT="elf32-tradlittlemips"
 unset DATA_ADDR
 SHLIB_TEXT_START_ADDR=0
 ENTRY=__start
+
+# Place .got.plt as close to .plt as possible so that the former can be
+# referred to from the latter with the microMIPS ADDIUPC instruction
+# that only has a span of +/-16MB.
+PLT_NEXT_DATA=
+INITIAL_READWRITE_SECTIONS=$OTHER_READWRITE_SECTIONS
+unset OTHER_READWRITE_SECTIONS
diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc
index feb118d..318e054 100644
--- a/ld/scripttempl/elf.sc
+++ b/ld/scripttempl/elf.sc
@@ -10,6 +10,7 @@
 #	OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
 #		(e.g., .PARISC.milli)
 #	OTHER_TEXT_SECTIONS - these get put in .text when relocating
+#	INITIAL_READWRITE_SECTIONS - at start of data segment (after relro)
 #	OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
 #		(e.g., .PARISC.global)
 #	OTHER_RELRO_SECTIONS - other than .data.rel.ro ...
@@ -33,6 +34,7 @@
 #	OTHER_SDATA_SECTIONS - sections just after .sdata.
 #	OTHER_BSS_SYMBOLS - symbols that appear at the start of the
 #		.bss section besides __bss_start.
+#	PLT_NEXT_DATA - .plt next to data segment when .plt is in text segment.
 #	DATA_PLT - .plt should be in data segment, not text segment.
 #	PLT_BEFORE_GOT - .plt just before .got when .plt is in data segement.
 #	BSS_PLT - .plt should be in bss segment
@@ -132,7 +134,7 @@ if test -z "$PLT"; then
   PLT=".plt          ${RELOCATING-0} : { *(.plt)${IREL_IN_PLT+ *(.iplt)} }
   ${IREL_IN_PLT-$IPLT}"
 fi
-test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=yes
+test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=
 if test -z "$GOT"; then
   if test -z "$SEPARATE_GOTPLT"; then
     GOT=".got          ${RELOCATING-0} : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }"
@@ -463,7 +465,7 @@ cat <<EOF
     ${RELOCATING+${INIT_END}}
   } ${FILL}
 
-  ${TEXT_PLT+${PLT}}
+  ${TEXT_PLT+${PLT_NEXT_DATA-${PLT}}}
   ${TINY_READONLY_SECTION}
   .text         ${RELOCATING-0} :
   {
@@ -527,6 +529,7 @@ cat <<EOF
   /* These sections are generated by the Sun/Oracle C++ compiler.  */
   .exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges
   .exception_ranges*) }
+  ${TEXT_PLT+${PLT_NEXT_DATA+${PLT}}}
 
   /* Adjust the address for the data segment.  We want to adjust up to
      the same address within the page on the next page up.  */
@@ -562,6 +565,7 @@ cat <<EOF
   ${DATA_GOT+${RELRO_NOW+${GOTPLT}}}
   ${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT+${GOT}}}}
   ${RELOCATING+${DATA_SEGMENT_RELRO_END}}
+  ${INITIAL_READWRITE_SECTIONS}
   ${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT-${GOT}}}}
   ${DATA_GOT+${RELRO_NOW-${GOTPLT}}}
 
diff --git a/ld/testsuite/ChangeLog b/ld/testsuite/ChangeLog
index f205bf5..dce58ad 100644
--- a/ld/testsuite/ChangeLog
+++ b/ld/testsuite/ChangeLog
@@ -1,3 +1,19 @@
+2013-06-24  Maciej W. Rozycki  <macro@codesourcery.com>
+
+	* ld-mips-elf/jalx-2.dd: Update for microMIPS PLT support.
+	* ld-mips-elf/pic-and-nonpic-3a.dd: Update for the _MIPS_STUBS_
+	magic symbol.
+	* ld-mips-elf/pic-and-nonpic-3b.dd: Likewise.
+	* ld-mips-elf/pic-and-nonpic-6-n32.dd: Likewise.
+	* ld-mips-elf/pic-and-nonpic-6-n64.dd: Likewise.
+	* ld-mips-elf/pic-and-nonpic-6-o32.dd: Likewise.
+	* ld-mips-elf/stub-dynsym-1-10000.d: Likewise.
+	* ld-mips-elf/stub-dynsym-1-2fe80.d: Likewise.
+	* ld-mips-elf/stub-dynsym-1-7fff.d: Likewise.
+	* ld-mips-elf/stub-dynsym-1-8000.d: Likewise.
+	* ld-mips-elf/stub-dynsym-1-fff0.d: Likewise.
+	* ld-mips-elf/tlslib-o32.d: Likewise.
+
 2013-06-19  Will Newton  <will.newton@linaro.org>
 
 	* ld-aarch64/aarch64-elf.exp: Remove ifunc tests.
diff --git a/ld/testsuite/ld-mips-elf/jalx-2.dd b/ld/testsuite/ld-mips-elf/jalx-2.dd
index abbae8b..8119ab4 100644
--- a/ld/testsuite/ld-mips-elf/jalx-2.dd
+++ b/ld/testsuite/ld-mips-elf/jalx-2.dd
@@ -28,8 +28,8 @@ Disassembly of section \.text:
  4400034:	f89e 0020 	sw	a0,32\(s8\)
  4400038:	f8be 0024 	sw	a1,36\(s8\)
  440003c:	41a2 0440 	lui	v0,0x440
- 4400040:	3082 02a0 	addiu	a0,v0,672
- 4400044:	f110 0028 	jalx	44000a0 <printf@plt>
+ 4400040:	3082 0290 	addiu	a0,v0,656
+ 4400044:	f620 004c 	jal	4400098 <printf@micromipsplt>
  4400048:	0000 0000 	nop
  440004c:	f620 0010 	jal	4400020 <internal_function>
  4400050:	0000 0000 	nop
@@ -44,17 +44,18 @@ Disassembly of section \.text:
 Disassembly of section \.plt:
 
 04400080 <_PROCEDURE_LINKAGE_TABLE_>:
- 4400080:	3c1c0440 	lui	gp,0x440
- 4400084:	8f9900d8 	lw	t9,216\(gp\)
- 4400088:	279c00d8 	addiu	gp,gp,216
- 440008c:	031cc023 	subu	t8,t8,gp
- 4400090:	03e07821 	move	t7,ra
- 4400094:	0018c082 	srl	t8,t8,0x2
- 4400098:	0320f809 	jalr	t9
- 440009c:	2718fffe 	addiu	t8,t8,-2
+ 4400080:	7980 0012 	addiu	v1,\$pc,72
+ 4400084:	ff23 0000 	lw	t9,0\(v1\)
+ 4400088:	0535      	subu	v0,v0,v1
+ 440008a:	2525      	srl	v0,v0,2
+ 440008c:	3302 fffe 	addiu	t8,v0,-2
+ 4400090:	0dff      	move	t7,ra
+ 4400092:	45f9      	jalrs	t9
+ 4400094:	0f83      	move	gp,v1
+ 4400096:	0c00      	nop
 
-044000a0 <printf@plt>:
- 44000a0:	3c0f0440 	lui	t7,0x440
- 44000a4:	8df900e0 	lw	t9,224\(t7\)
- 44000a8:	03200008 	jr	t9
- 44000ac:	25f800e0 	addiu	t8,t7,224
+04400098 <printf@micromipsplt>:
+ 4400098:	7900 000e 	addiu	v0,\$pc,56
+ 440009c:	ff22 0000 	lw	t9,0\(v0\)
+ 44000a0:	4599      	jr	t9
+ 44000a2:	0f02      	move	t8,v0
diff --git a/ld/testsuite/ld-mips-elf/pic-and-nonpic-3a.dd b/ld/testsuite/ld-mips-elf/pic-and-nonpic-3a.dd
index cb72980..b37a593 100644
--- a/ld/testsuite/ld-mips-elf/pic-and-nonpic-3a.dd
+++ b/ld/testsuite/ld-mips-elf/pic-and-nonpic-3a.dd
@@ -31,7 +31,7 @@ Disassembly of section \.text:
 #...
 Disassembly of section \.MIPS\.stubs:
 
-00000c00 <.MIPS.stubs>:
+00000c00 <_MIPS_STUBS_>:
  c00:	8f998010 	lw	t9,-32752\(gp\)
  c04:	03e07821 	move	t7,ra
  c08:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/pic-and-nonpic-3b.dd b/ld/testsuite/ld-mips-elf/pic-and-nonpic-3b.dd
index dd1d1b0..da79012 100644
--- a/ld/testsuite/ld-mips-elf/pic-and-nonpic-3b.dd
+++ b/ld/testsuite/ld-mips-elf/pic-and-nonpic-3b.dd
@@ -42,9 +42,10 @@ Disassembly of section \.text:
 .*:	03200008 	jr	t9
 .*:	00000000 	nop
 .*:	00000000 	nop
-Disassembly of section .MIPS.stubs:
 
-00044030 <\.MIPS\.stubs>:
+Disassembly of section \.MIPS\.stubs:
+
+00044030 <_MIPS_STUBS_>:
 .*:	8f998010 	lw	t9,-32752\(gp\)
 .*:	03e07821 	move	t7,ra
 .*:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n32.dd b/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n32.dd
index fd76d86..dfab46c 100644
--- a/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n32.dd
+++ b/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n32.dd
@@ -91,9 +91,10 @@ Disassembly of section \.text:
    44090:	3c02000a 	lui	v0,0xa
    44094:	24422018 	addiu	v0,v0,8216
 	\.\.\.
+
 Disassembly of section \.MIPS\.stubs:
 
-000440a0 <\.MIPS\.stubs>:
+000440a0 <_MIPS_STUBS_>:
    440a0:	8f998010 	lw	t9,-32752\(gp\)
    440a4:	03e07821 	move	t3,ra
    440a8:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n64.dd b/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n64.dd
index 864fbbb..287e558 100644
--- a/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n64.dd
+++ b/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-n64.dd
@@ -91,9 +91,10 @@ Disassembly of section \.text:
    44090:	3c02000a 	lui	v0,0xa
    44094:	24422018 	addiu	v0,v0,8216
 	\.\.\.
+
 Disassembly of section \.MIPS\.stubs:
 
-0+440a0 <\.MIPS\.stubs>:
+0+440a0 <_MIPS_STUBS_>:
    440a0:	df998010 	ld	t9,-32752\(gp\)
    440a4:	03e0782d 	move	t3,ra
    440a8:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-o32.dd b/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-o32.dd
index ba6ab0f..5002d52 100644
--- a/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-o32.dd
+++ b/ld/testsuite/ld-mips-elf/pic-and-nonpic-6-o32.dd
@@ -91,9 +91,10 @@ Disassembly of section \.text:
    44090:	3c02000a 	lui	v0,0xa
    44094:	24422018 	addiu	v0,v0,8216
 	\.\.\.
+
 Disassembly of section \.MIPS\.stubs:
 
-000440a0 <\.MIPS\.stubs>:
+000440a0 <_MIPS_STUBS_>:
    440a0:	8f998010 	lw	t9,-32752\(gp\)
    440a4:	03e07821 	move	t7,ra
    440a8:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/stub-dynsym-1-10000.d b/ld/testsuite/ld-mips-elf/stub-dynsym-1-10000.d
index b59bb5f..e2d375b 100644
--- a/ld/testsuite/ld-mips-elf/stub-dynsym-1-10000.d
+++ b/ld/testsuite/ld-mips-elf/stub-dynsym-1-10000.d
@@ -3,7 +3,7 @@
 
 Disassembly of section \.MIPS\.stubs:
 
-.* <\.MIPS.stubs>:
+.* <_MIPS_STUBS_>:
 .*:	8f998010 	lw	t9,-32752\(gp\)
 .*:	03e07821 	move	t7,ra
 .*:	3c180001 	lui	t8,0x1
diff --git a/ld/testsuite/ld-mips-elf/stub-dynsym-1-2fe80.d b/ld/testsuite/ld-mips-elf/stub-dynsym-1-2fe80.d
index 07ca1a2..d428f3d 100644
--- a/ld/testsuite/ld-mips-elf/stub-dynsym-1-2fe80.d
+++ b/ld/testsuite/ld-mips-elf/stub-dynsym-1-2fe80.d
@@ -3,7 +3,7 @@
 
 Disassembly of section \.MIPS\.stubs:
 
-.* <\.MIPS.stubs>:
+.* <_MIPS_STUBS_>:
 .*:	8f998010 	lw	t9,-32752\(gp\)
 .*:	03e07821 	move	t7,ra
 .*:	3c180002 	lui	t8,0x2
diff --git a/ld/testsuite/ld-mips-elf/stub-dynsym-1-7fff.d b/ld/testsuite/ld-mips-elf/stub-dynsym-1-7fff.d
index bfc94c5..e2b961f6 100644
--- a/ld/testsuite/ld-mips-elf/stub-dynsym-1-7fff.d
+++ b/ld/testsuite/ld-mips-elf/stub-dynsym-1-7fff.d
@@ -3,7 +3,7 @@
 
 Disassembly of section \.MIPS\.stubs:
 
-.* <\.MIPS.stubs>:
+.* <_MIPS_STUBS_>:
 .*:	8f998010 	lw	t9,-32752\(gp\)
 .*:	03e07821 	move	t7,ra
 .*:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/stub-dynsym-1-8000.d b/ld/testsuite/ld-mips-elf/stub-dynsym-1-8000.d
index 2861ac2..b1b1980 100644
--- a/ld/testsuite/ld-mips-elf/stub-dynsym-1-8000.d
+++ b/ld/testsuite/ld-mips-elf/stub-dynsym-1-8000.d
@@ -3,7 +3,7 @@
 
 Disassembly of section \.MIPS\.stubs:
 
-.* <\.MIPS.stubs>:
+.* <_MIPS_STUBS_>:
 .*:	8f998010 	lw	t9,-32752\(gp\)
 .*:	03e07821 	move	t7,ra
 .*:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/stub-dynsym-1-fff0.d b/ld/testsuite/ld-mips-elf/stub-dynsym-1-fff0.d
index 440d32a..99ca9b2 100644
--- a/ld/testsuite/ld-mips-elf/stub-dynsym-1-fff0.d
+++ b/ld/testsuite/ld-mips-elf/stub-dynsym-1-fff0.d
@@ -3,7 +3,7 @@
 
 Disassembly of section \.MIPS\.stubs:
 
-.* <\.MIPS.stubs>:
+.* <_MIPS_STUBS_>:
 .*:	8f998010 	lw	t9,-32752\(gp\)
 .*:	03e07821 	move	t7,ra
 .*:	0320f809 	jalr	t9
diff --git a/ld/testsuite/ld-mips-elf/tlslib-o32.d b/ld/testsuite/ld-mips-elf/tlslib-o32.d
index e0b3fe3..066f284 100644
--- a/ld/testsuite/ld-mips-elf/tlslib-o32.d
+++ b/ld/testsuite/ld-mips-elf/tlslib-o32.d
@@ -35,9 +35,10 @@ Disassembly of section .text:
  .*:	03e00008 	jr	ra
  .*:	27bd0010 	addiu	sp,sp,16
 	...
+
 Disassembly of section .MIPS.stubs:
 
-.* <.MIPS.stubs>:
+.* <_MIPS_STUBS_>:
  .*:	8f998010 	lw	t9,-32752\(gp\)
  .*:	03e07821 	move	t7,ra
  .*:	0320f809 	jalr	t9