Properly match PLT entry against .got.plt relocation

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.

5 files changed, 85 insertions, 5 deletions

diff --git a/ld/testsuite/ld-x86-64/bnd-ifunc-2.d b/ld/testsuite/ld-x86-64/bnd-ifunc-2.d
new file mode 100644
index 0000000..43e3356
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/bnd-ifunc-2.d
@@ -0,0 +1,54 @@
+#as: --64 -madd-bnd-prefix
+#ld: -shared -melf_x86_64
+#objdump: -dw
+
+#...
+0+2d0 <.plt>:
+[ 	]*[a-f0-9]+:	ff 35 7a 01 20 00    	pushq  0x20017a\(%rip\)        # 200450 <_GLOBAL_OFFSET_TABLE_\+0x8>
+[ 	]*[a-f0-9]+:	f2 ff 25 7b 01 20 00 	bnd jmpq \*0x20017b\(%rip\)        # 200458 <_GLOBAL_OFFSET_TABLE_\+0x10>
+[ 	]*[a-f0-9]+:	0f 1f 00             	nopl   \(%rax\)
+[ 	]*[a-f0-9]+:	68 03 00 00 00       	pushq  \$0x3
+[ 	]*[a-f0-9]+:	f2 e9 e5 ff ff ff    	bnd jmpq 2d0 <\*ABS\*\+0x34c@plt-0x50>
+[ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	68 00 00 00 00       	pushq  \$0x0
+[ 	]*[a-f0-9]+:	f2 e9 d5 ff ff ff    	bnd jmpq 2d0 <\*ABS\*\+0x34c@plt-0x50>
+[ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	68 01 00 00 00       	pushq  \$0x1
+[ 	]*[a-f0-9]+:	f2 e9 c5 ff ff ff    	bnd jmpq 2d0 <\*ABS\*\+0x34c@plt-0x50>
+[ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
+[ 	]*[a-f0-9]+:	68 02 00 00 00       	pushq  \$0x2
+[ 	]*[a-f0-9]+:	f2 e9 b5 ff ff ff    	bnd jmpq 2d0 <\*ABS\*\+0x34c@plt-0x50>
+[ 	]*[a-f0-9]+:	0f 1f 44 00 00       	nopl   0x0\(%rax,%rax,1\)
+
+Disassembly of section .plt.bnd:
+
+0+320 <\*ABS\*\+0x34c@plt>:
+[ 	]*[a-f0-9]+:	f2 ff 25 39 01 20 00 	bnd jmpq \*0x200139\(%rip\)        # 200460 <_GLOBAL_OFFSET_TABLE_\+0x18>
+[ 	]*[a-f0-9]+:	90                   	nop
+
+0+328 <func1@plt>:
+[ 	]*[a-f0-9]+:	f2 ff 25 39 01 20 00 	bnd jmpq \*0x200139\(%rip\)        # 200468 <_GLOBAL_OFFSET_TABLE_\+0x20>
+[ 	]*[a-f0-9]+:	90                   	nop
+
+0+330 <func2@plt>:
+[ 	]*[a-f0-9]+:	f2 ff 25 39 01 20 00 	bnd jmpq \*0x200139\(%rip\)        # 200470 <_GLOBAL_OFFSET_TABLE_\+0x28>
+[ 	]*[a-f0-9]+:	90                   	nop
+
+0+338 <\*ABS\*\+0x340@plt>:
+[ 	]*[a-f0-9]+:	f2 ff 25 39 01 20 00 	bnd jmpq \*0x200139\(%rip\)        # 200478 <_GLOBAL_OFFSET_TABLE_\+0x30>
+[ 	]*[a-f0-9]+:	90                   	nop
+
+Disassembly of section .text:
+
+0+340 <resolve1>:
+[ 	]*[a-f0-9]+:	f2 e8 e2 ff ff ff    	bnd callq 328 <func1@plt>
+
+0+346 <g1>:
+[ 	]*[a-f0-9]+:	f2 e9 ec ff ff ff    	bnd jmpq 338 <\*ABS\*\+0x340@plt>
+
+0+34c <resolve2>:
+[ 	]*[a-f0-9]+:	f2 e8 de ff ff ff    	bnd callq 330 <func2@plt>
+
+0+352 <g2>:
+[ 	]*[a-f0-9]+:	f2 e9 c8 ff ff ff    	bnd jmpq 320 <\*ABS\*\+0x34c@plt>
+#pass
diff --git a/ld/testsuite/ld-x86-64/bnd-ifunc-2.s b/ld/testsuite/ld-x86-64/bnd-ifunc-2.s
new file mode 100644
index 0000000..86470a2
--- /dev/null
+++ b/ld/testsuite/ld-x86-64/bnd-ifunc-2.s
@@ -0,0 +1,28 @@
+	.text
+	.globl	fct1
+	.type	fct1, @gnu_indirect_function
+	.set	fct1,resolve1
+	.hidden int_fct1
+	.globl	int_fct1
+	.set	int_fct1,fct1
+	.type	resolve1, @function
+resolve1:
+	call	func1@PLT
+	.globl	g1
+	.type	g1, @function
+g1:
+	jmp	int_fct1@PLT
+
+	.globl	fct2
+	.type	fct2, @gnu_indirect_function
+	.set	fct2,resolve2
+	.hidden int_fct2
+	.globl	int_fct2
+	.set	int_fct2,fct2
+	.type	resolve2, @function
+resolve2:
+	call	func2@PLT
+	.globl	g2
+	.type	g2, @function
+g2:
+	jmp	int_fct2@PLT
diff --git a/ld/testsuite/ld-x86-64/mpx.exp b/ld/testsuite/ld-x86-64/mpx.exp
index 3224048..f2a50d4 100644
--- a/ld/testsuite/ld-x86-64/mpx.exp
+++ b/ld/testsuite/ld-x86-64/mpx.exp
@@ -78,4 +78,5 @@ run_ld_link_exec_tests [] $run_tests
 
 run_dump_test "bnd-branch-1"
 run_dump_test "bnd-ifunc-1"
+run_dump_test "bnd-ifunc-2"
 run_dump_test "bnd-plt-1"
diff --git a/ld/testsuite/ld-x86-64/tlsdesc-nacl.pd b/ld/testsuite/ld-x86-64/tlsdesc-nacl.pd
index e2ba398..eff90a8 100644
--- a/ld/testsuite/ld-x86-64/tlsdesc-nacl.pd
+++ b/ld/testsuite/ld-x86-64/tlsdesc-nacl.pd
@@ -9,7 +9,7 @@
 
 Disassembly of section .plt:
 
-[0-9a-f]+ <.*@plt-0x40>:
+[0-9a-f]+ <.plt>:
  +[0-9a-f]+:	ff 35 .. .. .. ..    	pushq  0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_GLOBAL_OFFSET_TABLE_\+0x8>
  +[0-9a-f]+:	4c 8b 1d .. .. .. .. 	mov    0x[0-9a-f]+\(%rip\),%r11 +# [0-9a-f]+ <_GLOBAL_OFFSET_TABLE_\+0x10>
  +[0-9a-f]+:	41 83 e3 e0          	and    \$0xffffffe0,%r11d
@@ -24,8 +24,6 @@ Disassembly of section .plt:
  +[0-9a-f]+:	0f 1f 84 00 00 00 00 *
  +[0-9a-f]+:	00 *
  +[0-9a-f]+:	66 90                	xchg   %ax,%ax
-
-[0-9a-f]+ <.*@plt>:
  +[0-9a-f]+:	ff 35 .. .. .. ..    	pushq  0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_GLOBAL_OFFSET_TABLE_\+0x8>
  +[0-9a-f]+:	4c 8b 1d .. .. .. .. 	mov    0x[0-9a-f]+\(%rip\),%r11 +# [0-9a-f]+ <_DYNAMIC\+0x190>
  +[0-9a-f]+:	41 83 e3 e0          	and    \$0xffffffe0,%r11d
diff --git a/ld/testsuite/ld-x86-64/tlsdesc.pd b/ld/testsuite/ld-x86-64/tlsdesc.pd
index 2176576..c24403c 100644
--- a/ld/testsuite/ld-x86-64/tlsdesc.pd
+++ b/ld/testsuite/ld-x86-64/tlsdesc.pd
@@ -9,11 +9,10 @@
 
 Disassembly of section .plt:
 
-[0-9a-f]+ <.*@plt-0x10>:
+[0-9a-f]+ <.plt>:
  [0-9a-f]+:	ff 35 .. .. 20 00    	pushq  .*\(%rip\)        # 201358 <_GLOBAL_OFFSET_TABLE_\+0x8>
  [0-9a-f]+:	ff 25 .. .. 20 00    	jmpq   \*.*\(%rip\)        # 201360 <_GLOBAL_OFFSET_TABLE_\+0x10>
  [0-9a-f]+:	0f 1f 40 00          	nopl   0x0\(%rax\)
-[0-9a-f]+ <.*@plt>:
  [0-9a-f]+:	ff 35 .. .. 20 00    	pushq  .*\(%rip\)        # 201358 <_GLOBAL_OFFSET_TABLE_\+0x8>
  [0-9a-f]+:	ff 25 .. .. 20 00    	jmpq   \*.*\(%rip\)        # 201348 <_DYNAMIC\+0x190>
  [0-9a-f]+:	0f 1f 40 00          	nopl   0x0\(%rax\)