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X86-64: Test external function reference without PLT 

To call an external function, the direct branch to the PLT entry can be
replaced by an indirect branch via the GOT slot, which is similar to the
first instruction in the PLT slot.  Instead using the PLT slot as function
address, the function address is retrieved from the GOT slot.  If linker
determines the function is defined locally, it converts indirect branch
via the GOT slot to direct branch with a nop prefix and converts load via
the GOT slot to load immediate or lea,

	* testsuite/ld-x86-64/libno-plt-1b.dd: Likewise.
	* testsuite/ld-x86-64/libno-plt-1b.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1a.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1a.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1b.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1b.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1c.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1c.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1d.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1d.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1e.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1e.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1f.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1f.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-1g.dd: Likewise.
	* testsuite/ld-x86-64/no-plt-1g.rd: Likewise.
	* testsuite/ld-x86-64/no-plt-check1.S: Likewise.
	* testsuite/ld-x86-64/no-plt.exp: Likewise.
	* testsuite/ld-x86-64/no-plt-extern1.S: Likewise.
	* testsuite/ld-x86-64/no-plt-func1.c: Likewise.
	* testsuite/ld-x86-64/no-plt-main1.c: Likewise.
This commit is contained in:
H.J. Lu 2016-06-08 04:55:10 -07:00
parent 33c2b983b4
commit d9aee8d5f7
21 changed files with 557 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
ld/testsuite/ld-x86-64/libno-plt-1b.dd Normal file
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#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <get_func>:
+[a-f0-9]+: 48 8b 05 ([0-9a-f]{2} ){4}[ ]+mov 0x[0-9a-f]+\(%rip\),%rax +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: c3 retq
#...
[0-9a-f]+ <call_func>:
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#pass

8
ld/testsuite/ld-x86-64/libno-plt-1b.rd Normal file
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@ -0,0 +1,8 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ func \+ 0
#pass

32
ld/testsuite/ld-x86-64/no-plt-1a.dd Normal file
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@ -0,0 +1,32 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <get_func>
+[a-f0-9]+: 48 81 f8 ([0-9a-f]{2} ){4}[ ]+cmp \$0x[0-9a-f]+,%rax
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <call_func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#...
[0-9a-f]+ <get_func>:
+[a-f0-9]+: 48 c7 c0 ([0-9a-f]{2} ){4}[ ]+mov \$0x[0-9a-f]+,%rax
+[a-f0-9]+: c3 retq
#...
[0-9a-f]+ <call_func>:
+[a-f0-9]+: e9 ([0-9a-f]{2} ){4}[ ]+jmpq [a-f0-9]+ <func>
+[a-f0-9]+: 90 nop
#pass

10
ld/testsuite/ld-x86-64/no-plt-1a.rd Normal file
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@ -0,0 +1,10 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ abort.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ puts.* \+ 0
#pass

24
ld/testsuite/ld-x86-64/no-plt-1b.dd Normal file
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@ -0,0 +1,24 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 48 3b 05 ([0-9a-f]{2} ){4}[ ]+cmp 0x[0-9a-f]+\(%rip\),%rax +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#pass

16
ld/testsuite/ld-x86-64/no-plt-1b.rd Normal file
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@ -0,0 +1,16 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ abort.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ puts.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ get_func \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ call_func \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ func \+ 0
#pass

24
ld/testsuite/ld-x86-64/no-plt-1c.dd Normal file
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@ -0,0 +1,24 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 48 81 f8 ([0-9a-f]{2} ){4}[ ]+cmp \$0x[0-9a-f]+,%rax
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#pass

14
ld/testsuite/ld-x86-64/no-plt-1c.rd Normal file
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@ -0,0 +1,14 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ abort.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ puts.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ get_func \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ call_func \+ 0
#pass

33
ld/testsuite/ld-x86-64/no-plt-1d.dd Normal file
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@ -0,0 +1,33 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <get_func>
+[a-f0-9]+: 48 81 f8 ([0-9a-f]{2} ){4}[ ]+cmp \$0x[0-9a-f]+,%rax
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <call_func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: e9 ([0-9a-f]{2} ){4}[ ]+jmpq [a-f0-9]+ <.*puts.*>
+[a-f0-9]+: 90 nop
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <abort>
#...
[0-9a-f]+ <get_func>:
+[a-f0-9]+: 48 c7 c0 ([0-9a-f]{2} ){4}[ ]+mov \$0x[0-9a-f]+,%rax
+[a-f0-9]+: c3 retq
#...
[0-9a-f]+ <call_func>:
+[a-f0-9]+: e9 ([0-9a-f]{2} ){4}[ ]+jmpq [a-f0-9]+ <func>
+[a-f0-9]+: 90 nop
#pass

7
ld/testsuite/ld-x86-64/no-plt-1d.rd Normal file
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@ -0,0 +1,7 @@
#readelf: -Wr
#target: x86_64-*-*
#failif
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +.*
#pass

32
ld/testsuite/ld-x86-64/no-plt-1e.dd Normal file
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@ -0,0 +1,32 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <get_func>
+[a-f0-9]+: 48 3b 05 ([0-9a-f]{2} ){4}[ ]+cmp 0x[0-9a-f]+\(%rip\),%rax +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <call_func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#...
[0-9a-f]+ <get_func>:
+[a-f0-9]+: 48 8d 05 ([0-9a-f]{2} ){4}[ ]+lea -0x[0-9a-f]+\(%rip\),%rax +# [0-9a-f]+ <func>
+[a-f0-9]+: c3 retq
#...
[0-9a-f]+ <call_func>:
+[a-f0-9]+: e9 ([0-9a-f]{2} ){4}[ ]+jmpq [a-f0-9]+ <func>
+[a-f0-9]+: 90 nop
#pass

10
ld/testsuite/ld-x86-64/no-plt-1e.rd Normal file
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@ -0,0 +1,10 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ abort.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ puts.* \+ 0
#pass

24
ld/testsuite/ld-x86-64/no-plt-1f.dd Normal file
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@ -0,0 +1,24 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 48 3b 05 ([0-9a-f]{2} ){4}[ ]+cmp 0x[0-9a-f]+\(%rip\),%rax +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#pass

16
ld/testsuite/ld-x86-64/no-plt-1f.rd Normal file
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@ -0,0 +1,16 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ abort.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ puts.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ get_func \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ call_func \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ func \+ 0
#pass

24
ld/testsuite/ld-x86-64/no-plt-1g.dd Normal file
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@ -0,0 +1,24 @@
#objdump: -dwrj.text
#target: x86_64-*-*
.*: +file format elf64-x86-64.*
Disassembly of section .text:
#...
[0-9a-f]+ <check>:
+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 48 3b 05 ([0-9a-f]{2} ){4}[ ]+cmp 0x[0-9a-f]+\(%rip\),%rax +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 callq [0-9a-f]+ <func>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmpq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+callq \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <_DYNAMIC\+0x[0-9a-f]+>
#pass

14
ld/testsuite/ld-x86-64/no-plt-1g.rd Normal file
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@ -0,0 +1,14 @@
#readelf: -Wr
#target: x86_64-*-*
Relocation section '.rela.dyn' at offset 0x[0-9a-f]+ contains [0-9]+ entries:
+Offset +Info +Type +Symbol's Value +Symbol's Name \+ Addend
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ abort.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ puts.* \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ get_func \+ 0
#...
[0-9a-f ]+R_X86_64_GLOB_DAT +0+ call_func \+ 0
#pass

25
ld/testsuite/ld-x86-64/no-plt-check1.S Normal file
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@ -0,0 +1,25 @@
.section .rodata.str1.1,"aMS",@progbits,1
.LC0:
.string "PASS"
.text
.p2align 4,,15
.globl check
.type check, @function
check:
subq $8, %rsp
call *get_func@GOTPCREL(%rip)
cmpq func@GOTPCREL(%rip), %rax
jne .L3
call *func@GOTPCREL(%rip)
cmpl $305419896, %eax
jne .L3
call *call_func@GOTPCREL(%rip)
cmpl $305419896, %eax
jne .L3
leaq .LC0(%rip), %rdi
addq $8, %rsp
jmp *puts@GOTPCREL(%rip)
.L3:
call *abort@GOTPCREL(%rip)
.size check, .-check
.section .note.GNU-stack,"",@progbits

15
ld/testsuite/ld-x86-64/no-plt-extern1.S Normal file
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@ -0,0 +1,15 @@
.text
.p2align 4,,15
.globl get_func
.type get_func, @function
get_func:
movq func@GOTPCREL(%rip), %rax
ret
.size get_func, .-get_func
.p2align 4,,15
.globl call_func
.type call_func, @function
call_func:
jmp *func@GOTPCREL(%rip)
.size call_func, .-call_func
.section .note.GNU-stack,"",@progbits

5
ld/testsuite/ld-x86-64/no-plt-func1.c Normal file
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@ -0,0 +1,5 @@
int
func (void)
{
return 0x12345678;
}

8
ld/testsuite/ld-x86-64/no-plt-main1.c Normal file
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@ -0,0 +1,8 @@
extern void check (void);
int
main ()
{
check ();
return 0;
}

201
ld/testsuite/ld-x86-64/no-plt.exp Normal file
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@ -0,0 +1,201 @@
# Expect script for x86-64 no-PLT tests.
# Copyright (C) 2016 Free Software Foundation, Inc.
#
# This file is part of the GNU Binutils.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
# MA 02110-1301, USA.
#
# The following tests require running the executable generated by ld,
# or enough of a build environment to create a fully linked executable.
# This is not commonly available when testing a cross-built linker.
if ![isnative] {
return
}
if ![is_elf_format] {
return
}
if ![istarget "x86_64-*-*"] {
return
}
# Check to see if the C compiler works
if { [which $CC] == 0 } {
return
}
run_cc_link_tests [list \
[list \
"Build no-plt-func1.o no-plt-main1.o" \
"" \
"-fPIE" \
{no-plt-func1.c no-plt-main1.c} \
] \
[list \
"Build no-plt-check1.o no-plt-extern1.o" \
"" \
"-Wa,-mrelax-relocations=yes" \
{no-plt-check1.S no-plt-extern1.S} \
] \
[list \
"Build libno-plt-1a.so" \
"-shared tmpdir/no-plt-func1.o" \
"" \
{dummy.s} \
{} \
"libno-plt-1a.so" \
] \
[list \
"Build libno-plt-1b.so" \
"-shared tmpdir/no-plt-extern1.o" \
"" \
{dummy.s} \
{{readelf -Wr libno-plt-1b.rd} \
{objdump -dwrj.text libno-plt-1b.dd}} \
"libno-plt-1b.so" \
] \
[list \
"No PLT (dynamic 1a)" \
"tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/no-plt-extern1.o" \
"" \
{dummy.s} \
{{readelf -Wr no-plt-1a.rd} {objdump -dwrj.text no-plt-1a.dd}} \
"no-plt-1a" \
] \
[list \
"No PLT (dynamic 1b)" \
"tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/libno-plt-1a.so tmpdir/libno-plt-1b.so" \
"" \
{dummy.s} \
{{readelf -Wr no-plt-1b.rd} {objdump -dwrj.text no-plt-1b.dd}} \
"no-plt-1b" \
] \
[list \
"No PLT (dynamic 1c)" \
"tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/libno-plt-1b.so" \
"" \
{dummy.s} \
{{readelf -Wr no-plt-1c.rd} {objdump -dwrj.text no-plt-1c.dd}} \
"no-plt-1c" \
] \
[list \
"No PLT (static 1d)" \
"-static tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/no-plt-extern1.o" \
"" \
{dummy.s} \
{{readelf -Wr no-plt-1d.rd} {objdump -dwrj.text no-plt-1d.dd}} \
"no-plt-1a" \
] \
[list \
"No PLT (PIE 1e)" \
"-pie tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/no-plt-extern1.o" \
"" \
{dummy.s} \
{{readelf -Wr no-plt-1e.rd} {objdump -dwrj.text no-plt-1e.dd}} \
"no-plt-1e" \
] \
[list \
"No PLT (PIE 1f)" \
"-pie tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/libno-plt-1a.so tmpdir/libno-plt-1b.so" \
"" \
{ dummy.s } \
{{readelf -Wr no-plt-1f.rd} {objdump -dwrj.text no-plt-1f.dd}} \
"no-plt-1f" \
] \
[list \
"No PLT (PIE 1g)" \
"-pie tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/libno-plt-1b.so" \
"" \
{ dummy.s } \
{{readelf -Wr no-plt-1g.rd} {objdump -dwrj.text no-plt-1g.dd}} \
"no-plt-1g" \
] \
]
run_ld_link_exec_tests [] [list \
[list \
"No PLT (dynamic 1a)" \
"tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/no-plt-extern1.o" \
"" \
{ dummy.s } \
"no-plt-1a" \
"pass.out" \
] \
[list \
"No PLT (dynamic 1b)" \
"tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/libno-plt-1a.so tmpdir/libno-plt-1b.so" \
"" \
{ dummy.s } \
"no-plt-1b" \
"pass.out" \
] \
[list \
"No PLT (dynamic 1c)" \
"tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/libno-plt-1b.so" \
"" \
{ dummy.s } \
"no-plt-1c" \
"pass.out" \
] \
[list \
"No PLT (static 1d)" \
"-static tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/no-plt-extern1.o" \
"" \
{ dummy.s } \
"no-plt-1d" \
"pass.out" \
] \
[list \
"No PLT (PIE 1e)" \
"-pie tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/no-plt-extern1.o" \
"" \
{ dummy.s } \
"no-plt-1e" \
"pass.out" \
] \
[list \
"No PLT (PIE 1f)" \
"-pie tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/libno-plt-1a.so tmpdir/libno-plt-1b.so" \
"" \
{ dummy.s } \
"no-plt-1f" \
"pass.out" \
] \
[list \
"No PLT (PIE 1g)" \
"-pie tmpdir/no-plt-check1.o tmpdir/no-plt-main1.o \
tmpdir/no-plt-func1.o tmpdir/libno-plt-1b.so" \
"" \
{ dummy.s } \
"no-plt-1g" \
"pass.out" \
] \
]