File binutils-revert-plt32-in-branches.diff of Package binutils

Overview Repositories Revisions Requests Users Attributes Meta

File binutils-revert-plt32-in-branches.diff of Package binutils (Revision c2c450b0da04e695854691221afaafac)

Currently displaying revision c2c450b0da04e695854691221afaafac , Show latest

This reverts the below commit to not generate PLT32 relocs
on branches by default.  Used for old distros to not have to
update several packages/tools that can't handle them.  I.e.
a compatibility patch.

The patch isn't exactly the reverse of commit bd7ab16b
because commit 83924b38 later moved the checking code
around somewhat.

The changes in nop-[345].d and pr22842b.S are followups to
not break the testsuite because of this revert.
As are the changes to x86-64-branch-2.d and x86-64-branch-3.d.

commit bd7ab16b4537788ad53521c45469a1bdae84ad4a
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Feb 13 07:34:22 2018 -0800

x86-64: Generate branch with PLT32 relocation
    
    Since there is no need to prepare for PLT branch on x86-64, generate
    R_X86_64_PLT32, instead of R_X86_64_PC32, if possible, which can be
    used as a marker for 32-bit PC-relative branches.
    
    To compile Linux kernel, this patch:
    
    From: "H.J. Lu" <hjl.tools@gmail.com>
    Subject: [PATCH] x86: Treat R_X86_64_PLT32 as R_X86_64_PC32
    
    On i386, there are 2 types of PLTs, PIC and non-PIC.  PIE and shared
    objects must use PIC PLT.  To use PIC PLT, you need to load
    _GLOBAL_OFFSET_TABLE_ into EBX first.  There is no need for that on
    x86-64 since x86-64 uses PC-relative PLT.
    
    On x86-64, for 32-bit PC-relative branches, we can generate PLT32
    relocation, instead of PC32 relocation, which can also be used as
    a marker for 32-bit PC-relative branches.  Linker can always reduce
    PLT32 relocation to PC32 if function is defined locally.   Local
    functions should use PC32 relocation.  As far as Linux kernel is
    concerned, R_X86_64_PLT32 can be treated the same as R_X86_64_PC32
    since Linux kernel doesn't use PLT.
    
    is needed.  It is available on hjl/plt32/master branch at
    
    https://github.com/hjl-tools/linux
    
    bfd/
    
    	PR gas/22791
    	* elf64-x86-64.c (is_32bit_relative_branch): Removed.
    	(elf_x86_64_relocate_section): Check PIC relocations in PIE.
    	Remove is_32bit_relative_branch usage.  Disallow PC32 reloc
    	against protected function in shared object.
    
    gas/
    
    	PR gas/22791
    	* config/tc-i386.c (need_plt32_p): New function.
    	(output_jump): Generate BFD_RELOC_X86_64_PLT32 if possible.
    	(md_estimate_size_before_relax): Likewise.
    	* testsuite/gas/i386/reloc64.d: Updated.
    	* testsuite/gas/i386/x86-64-jump.d: Likewise.
    	* testsuite/gas/i386/x86-64-mpx-branch-1.d: Likewise.
    	* testsuite/gas/i386/x86-64-mpx-branch-2.d: Likewise.
    	* testsuite/gas/i386/x86-64-relax-2.d: Likewise.
    	* testsuite/gas/i386/x86-64-relax-3.d: Likewise.
    	* testsuite/gas/i386/ilp32/reloc64.d: Likewise.
    	* testsuite/gas/i386/ilp32/x86-64-branch.d: Likewise.
    
    ld/
    
    	PR gas/22791
    	* testsuite/ld-x86-64/mpx1c.rd: Updated.
    	* testsuite/ld-x86-64/pr22791-1.err: New file.
    	* testsuite/ld-x86-64/pr22791-1a.c: Likewise.
    	* testsuite/ld-x86-64/pr22791-1b.s: Likewise.
    	* testsuite/ld-x86-64/pr22791-2.rd: Likewise.
    	* testsuite/ld-x86-64/pr22791-2a.s: Likewise.
    	* testsuite/ld-x86-64/pr22791-2b.c: Likewise.
    	* testsuite/ld-x86-64/pr22791-2c.s: Likewise.
    	* testsuite/ld-x86-64/x86-64.exp: Run PR ld/22791 tests.

Index: binutils-2.42/bfd/elf64-x86-64.c
===================================================================
--- binutils-2.42.orig/bfd/elf64-x86-64.c	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/bfd/elf64-x86-64.c	2024-01-30 16:57:58.483994137 +0100
@@ -1981,6 +1981,24 @@ elf_x86_64_convert_load_reloc (bfd *abfd
   return true;
 }
 
+/* Is the instruction before OFFSET in CONTENTS a 32bit relative
+   branch?  */
+
+static bool
+is_32bit_relative_branch (bfd_byte *contents, bfd_vma offset)
+{
+  /* Opcode		Instruction
+     0xe8		call
+     0xe9		jump
+     0x0f 0x8x		conditional jump */
+  return ((offset > 0
+	   && (contents [offset - 1] == 0xe8
+	       || contents [offset - 1] == 0xe9))
+	  || (offset > 1
+	      && contents [offset - 2] == 0x0f
+	      && (contents [offset - 1] & 0xf0) == 0x80));
+}
+
 /* Look through the relocs for a section during the first phase, and
    calculate needed space in the global offset table, and procedure
    linkage table.  */
@@ -3337,9 +3355,6 @@ elf_x86_64_relocate_section (bfd *output
 			&& (eh == NULL
 			    || !UNDEFINED_WEAK_RESOLVED_TO_ZERO (info,
 								 eh)))
-		       || (bfd_link_pie (info)
-			   && !SYMBOL_DEFINED_NON_SHARED_P (h)
-			   && h->def_dynamic)
 		       || (no_copyreloc_p
 			   && h->def_dynamic
 			   && !(h->root.u.def.section->flags & SEC_CODE))))
@@ -3348,20 +3363,25 @@ elf_x86_64_relocate_section (bfd *output
 		  || bfd_link_dll (info)))
 	    {
 	      bool fail = false;
+	      bool branch
+		= ((r_type == R_X86_64_PC32
+		    || r_type == R_X86_64_PC32_BND)
+		   && is_32bit_relative_branch (contents, rel->r_offset));
+
 	      if (SYMBOL_REFERENCES_LOCAL_P (info, h))
 		{
 		  /* Symbol is referenced locally.  Make sure it is
-		     defined locally.  */
-		  fail = !SYMBOL_DEFINED_NON_SHARED_P (h);
+		     defined locally or for a branch.  */
+		  fail = !SYMBOL_DEFINED_NON_SHARED_P (h) && !branch;
 		}
 	      else if (bfd_link_pie (info))
 		{
 		  /* We can only use PC-relative relocations in PIE
-		     from non-code sections.  */
+		     from non-code sections or branches.  */
 		  if (h->root.type == bfd_link_hash_undefweak
 		      || (h->type == STT_FUNC
 			  && (sec->flags & SEC_CODE) != 0))
-		    fail = true;
+		    fail = !branch;
 		}
 	      else if (no_copyreloc_p || bfd_link_dll (info))
 		{
@@ -3370,9 +3390,10 @@ elf_x86_64_relocate_section (bfd *output
 		     relocations against default and protected
 		     symbols since address of protected function
 		     and location of protected data may not be in
-		     the shared object.   */
+		     the shared object.  We do allow branch to symbol
+		     with non-default visibility.  */
 		  fail = (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
-			  || ELF_ST_VISIBILITY (h->other) == STV_PROTECTED);
+			  || !branch);
 		}
 
 	      if (fail)
Index: binutils-2.42/gas/config/tc-i386.c
===================================================================
--- binutils-2.42.orig/gas/config/tc-i386.c	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/config/tc-i386.c	2024-01-30 16:58:57.504959847 +0100
@@ -10699,55 +10699,12 @@ output_branch (void)
   frag_var (rs_machine_dependent, 5, i.reloc[0], subtype, sym, off, p);
 }
 
-#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
-/* Return TRUE iff PLT32 relocation should be used for branching to
-   symbol S.  */
-
-static bool
-need_plt32_p (symbolS *s)
-{
-  /* PLT32 relocation is ELF only.  */
-  if (!IS_ELF)
-    return false;
-
-#ifdef TE_SOLARIS
-  /* Don't emit PLT32 relocation on Solaris: neither native linker nor
-     krtld support it.  */
-  return false;
-#endif
-
-  /* Since there is no need to prepare for PLT branch on x86-64, we
-     can generate R_X86_64_PLT32, instead of R_X86_64_PC32, which can
-     be used as a marker for 32-bit PC-relative branches.  */
-  if (!object_64bit)
-    return false;
-
-  if (s == NULL)
-    return false;
-
-  /* Weak or undefined symbol need PLT32 relocation.  */
-  if (S_IS_WEAK (s) || !S_IS_DEFINED (s))
-    return true;
-
-  /* Non-global symbol doesn't need PLT32 relocation.  */
-  if (! S_IS_EXTERNAL (s))
-    return false;
-
-  /* Other global symbols need PLT32 relocation.  NB: Symbol with
-     non-default visibilities are treated as normal global symbol
-     so that PLT32 relocation can be used as a marker for 32-bit
-     PC-relative branches.  It is useful for linker relaxation.  */
-  return true;
-}
-#endif
-
 static void
 output_jump (void)
 {
   char *p;
   int size;
   fixS *fixP;
-  bfd_reloc_code_real_type jump_reloc = i.reloc[0];
 
   if (i.tm.opcode_modifier.jump == JUMP_BYTE)
     {
@@ -10821,17 +10778,8 @@ output_jump (void)
       abort ();
     }
 
-#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
-  if (flag_code == CODE_64BIT && size == 4
-      && jump_reloc == NO_RELOC && i.op[0].disps->X_add_number == 0
-      && need_plt32_p (i.op[0].disps->X_add_symbol))
-    jump_reloc = BFD_RELOC_X86_64_PLT32;
-#endif
-
-  jump_reloc = reloc (size, 1, 1, jump_reloc);
-
   fixP = fix_new_exp (frag_now, p - frag_now->fr_literal, size,
-		      i.op[0].disps, 1, jump_reloc);
+		      i.op[0].disps, 1, reloc (size, 1, 1, i.reloc[0]));
 
   /* All jumps handled here are signed, but don't unconditionally use a
      signed limit check for 32 and 16 bit jumps as we want to allow wrap
@@ -15083,12 +15031,6 @@ md_estimate_size_before_relax (fragS *fr
 	reloc_type = (enum bfd_reloc_code_real) fragP->fr_var;
       else if (size == 2)
 	reloc_type = BFD_RELOC_16_PCREL;
-#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF)
-      else if (fragP->tc_frag_data.code == CODE_64BIT
-	       && fragP->fr_offset == 0
-	       && need_plt32_p (fragP->fr_symbol))
-	reloc_type = BFD_RELOC_X86_64_PLT32;
-#endif
       else
 	reloc_type = BFD_RELOC_32_PCREL;
 
Index: binutils-2.42/gas/testsuite/gas/i386/ilp32/reloc64.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/ilp32/reloc64.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/ilp32/reloc64.d	2024-01-30 16:57:58.487327524 +0100
@@ -17,7 +17,7 @@ Disassembly of section \.text:
 .*[ 	]+R_X86_64_PC8[ 	]+xtrn\+0x0*1
 .*[ 	]+R_X86_64_PC32[ 	]+xtrn-0x0*4
 .*[ 	]+R_X86_64_PC32[ 	]+xtrn-0x0*4
-.*[ 	]+R_X86_64_PLT32[ 	]+xtrn-0x0*4
+.*[ 	]+R_X86_64_PC32[ 	]+xtrn-0x0*4
 .*[ 	]+R_X86_64_PC8[ 	]+xtrn-0x0*1
 .*[ 	]+R_X86_64_GOT32[ 	]+xtrn
 .*[ 	]+R_X86_64_GOT32[ 	]+xtrn
Index: binutils-2.42/gas/testsuite/gas/i386/ilp32/x86-64-branch.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/ilp32/x86-64-branch.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/ilp32/x86-64-branch.d	2024-01-30 16:57:58.487327524 +0100
@@ -20,9 +20,9 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	66 ff 20             	data16 jmp \*$%rax$
 [ 	]*[a-f0-9]+:	e8 00 00 00 00       	call   (0x)?1f <.*>	1b: R_X86_64_PC32	\*ABS\*\+0x10003c
 [ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    (0x)?24 <.*>	20: R_X86_64_PC32	\*ABS\*\+0x10003c
-[ 	]*[a-f0-9]+:	66 e8 00 00 00 00    	data16 call (0x)?2a <.*>	26: R_X86_64_PLT32	foo-0x4
-[ 	]*[a-f0-9]+:	66 e9 00 00 00 00    	data16 jmp (0x)?30 <.*>	2c: R_X86_64_PLT32	foo-0x4
-[ 	]*[a-f0-9]+:	66 0f 82 00 00 00 00 	data16 jb (0x)?37 <.*>	33: R_X86_64_PLT32	foo-0x4
+[ 	]*[a-f0-9]+:	66 e8 00 00 00 00    	data16 call (0x)?2a <.*>	26: R_X86_64_PC32	foo-0x4
+[ 	]*[a-f0-9]+:	66 e9 00 00 00 00    	data16 jmp (0x)?30 <.*>	2c: R_X86_64_PC32	foo-0x4
+[ 	]*[a-f0-9]+:	66 0f 82 00 00 00 00 	data16 jb (0x)?37 <.*>	33: R_X86_64_PC32	foo-0x4
 [ 	]*[a-f0-9]+:	66 c3                	data16 ret
 [ 	]*[a-f0-9]+:	66 c2 08 00          	data16 ret \$0x8
 [ 	]*[a-f0-9]+:	3e 74 03[ 	]+je,pt  +[0-9a-fx]+ <.*>
Index: binutils-2.42/gas/testsuite/gas/i386/reloc64.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/reloc64.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/reloc64.d	2024-01-30 16:57:58.487327524 +0100
@@ -20,7 +20,7 @@ Disassembly of section \.text:
 .*[ 	]+R_X86_64_PC8[ 	]+xtrn\+0x0*1
 .*[ 	]+R_X86_64_PC32[ 	]+xtrn-0x0*4
 .*[ 	]+R_X86_64_PC32[ 	]+xtrn-0x0*4
-.*[ 	]+R_X86_64_PLT32[ 	]+xtrn-0x0*4
+.*[ 	]+R_X86_64_PC32[ 	]+xtrn-0x0*4
 .*[ 	]+R_X86_64_PC8[ 	]+xtrn-0x0*1
 .*[ 	]+R_X86_64_GOT64[ 	]+xtrn
 .*[ 	]+R_X86_64_GOT32[ 	]+xtrn
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-branch-2.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-branch-2.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-branch-2.d	2024-01-30 16:57:58.487327524 +0100
@@ -9,12 +9,12 @@ Disassembly of section .text:
 
 0+ <bar-0xb>:
 [ 	]*[a-f0-9]+:	66 e9 00 00          	jmpw   4 <bar-0x7>	2: R_X86_64_PC16	foo-0x2
-[ 	]*[a-f0-9]+:	66 48 e9 00 00 00 00 	data16 rex\.W jmp b <bar>	7: R_X86_64_PLT32	foo-0x4
+[ 	]*[a-f0-9]+:	66 48 e9 00 00 00 00 	data16 rex\.W jmp b <bar>	7: R_X86_64_PC32	foo-0x4
 
 0+b <bar>:
 [ 	]*[a-f0-9]+:	89 c3                	mov    %eax,%ebx
 [ 	]*[a-f0-9]+:	66 e8 00 00          	callw  11 <bar\+0x6>	f: R_X86_64_PC16	foo-0x2
-[ 	]*[a-f0-9]+:	66 48 e8 00 00 00 00 	data16 rex\.W call 18 <bar\+0xd>	14: R_X86_64_PLT32	foo-0x4
+[ 	]*[a-f0-9]+:	66 48 e8 00 00 00 00 	data16 rex\.W call 18 <bar\+0xd>	14: R_X86_64_PC32	foo-0x4
 [ 	]*[a-f0-9]+:	66 c3                	retw
 [ 	]*[a-f0-9]+:	66 c2 08 00          	retw   \$0x8
 #pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-jump.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-jump.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-jump.d	2024-01-30 16:57:58.487327524 +0100
@@ -9,7 +9,7 @@ Disassembly of section .text:
 
 0+ <.text>:
 [ 	]*[a-f0-9]+:	eb fe                	jmp    (0x0|0 <.text>)
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    0x7	3: R_X86_64_PLT32	xxx-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    0x7	3: R_X86_64_PC32	xxx-0x4
 [ 	]*[a-f0-9]+:	ff 24 25 00 00 00 00 	jmp    \*0x0	a: R_X86_64_32S	xxx
 [ 	]*[a-f0-9]+:	ff e7                	jmp    \*%rdi
 [ 	]*[a-f0-9]+:	ff 27                	jmp    \*$%rdi$
@@ -18,7 +18,7 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	ff 2c 25 00 00 00 00 	ljmp   \*0x0	24: R_X86_64_32S	xxx
 [ 	]*[a-f0-9]+:	66 ff 2c 25 00 00 00 00 	ljmpw  \*0x0	2c: R_X86_64_32S	xxx
 [ 	]*[a-f0-9]+:	e8 cb ff ff ff       	call   0x0
-[ 	]*[a-f0-9]+:	e8 00 00 00 00       	call   0x3a	36: R_X86_64_PLT32	xxx-0x4
+[ 	]*[a-f0-9]+:	e8 00 00 00 00       	call   0x3a	36: R_X86_64_PC32	xxx-0x4
 [ 	]*[a-f0-9]+:	ff 14 25 00 00 00 00 	call   \*0x0	3d: R_X86_64_32S	xxx
 [ 	]*[a-f0-9]+:	ff d7                	call   \*%rdi
 [ 	]*[a-f0-9]+:	ff 17                	call   \*$%rdi$
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-3.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-nop-3.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-3.d	2024-01-30 16:57:58.487327524 +0100
@@ -18,5 +18,5 @@ Disassembly of section .text:
 Disassembly of section .altinstr_replacement:
 
 0+ <.altinstr_replacement>:
- +[a-f0-9]+:	e9 00 00 00 00       	jmp    5 <_start\+0x5>	1: R_X86_64_PLT32	foo-0x4
+ +[a-f0-9]+:	e9 00 00 00 00       	jmp    5 <_start\+0x5>	1: R_X86_64_PC32	foo-0x4
 #pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-4.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-nop-4.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-4.d	2024-01-30 16:57:58.487327524 +0100
@@ -21,5 +21,5 @@ Disassembly of section .altinstr_replace
  +[a-f0-9]+:	89 c0                	mov    %eax,%eax
  +[a-f0-9]+:	89 c0                	mov    %eax,%eax
  +[a-f0-9]+:	89 c0                	mov    %eax,%eax
- +[a-f0-9]+:	e9 00 00 00 00       	jmp    b <_start\+0xb>	7: R_X86_64_PLT32	foo-0x4
+ +[a-f0-9]+:	e9 00 00 00 00       	jmp    b <_start\+0xb>	7: R_X86_64_PC32	foo-0x4
 #pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-5.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-nop-5.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-nop-5.d	2024-01-30 16:57:58.487327524 +0100
@@ -24,5 +24,5 @@ Disassembly of section .altinstr_replace
  +[a-f0-9]+:	89 c0                	mov    %eax,%eax
  +[a-f0-9]+:	89 c0                	mov    %eax,%eax
  +[a-f0-9]+:	89 c0                	mov    %eax,%eax
- +[a-f0-9]+:	e9 00 00 00 00       	jmp    d <_start\+0xd>	9: R_X86_64_PLT32	foo-0x4
+ +[a-f0-9]+:	e9 00 00 00 00       	jmp    d <_start\+0xd>	9: R_X86_64_PC32	foo-0x4
 #pass
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-2.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-relax-2.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-2.d	2024-01-30 16:57:58.487327524 +0100
@@ -11,12 +11,12 @@ Disassembly of section .text:
 0+ <foo>:
 [ 	]*[a-f0-9]+:	eb 24                	jmp    26 <local>
 [ 	]*[a-f0-9]+:	eb 1e                	jmp    22 <hidden_def>
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    9 <foo\+0x9>	5: R_X86_64_PLT32	global_def-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    9 <foo\+0x9>	5: R_X86_64_PC32	global_def-0x4
 [ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    e <foo\+0xe>	a: R_X86_64_PLT32	global_def-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    13 <foo\+0x13>	f: R_X86_64_PLT32	weak_def-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    18 <foo\+0x18>	14: R_X86_64_PLT32	weak_hidden_undef-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    1d <foo\+0x1d>	19: R_X86_64_PLT32	weak_hidden_def-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    22 <hidden_def>	1e: R_X86_64_PLT32	hidden_undef-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    13 <foo\+0x13>	f: R_X86_64_PC32	weak_def-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    18 <foo\+0x18>	14: R_X86_64_PC32	weak_hidden_undef-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    1d <foo\+0x1d>	19: R_X86_64_PC32	weak_hidden_def-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    22 <hidden_def>	1e: R_X86_64_PC32	hidden_undef-0x4
 
 0+22 <hidden_def>:
 [ 	]*[a-f0-9]+:	c3                   	ret
Index: binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-3.d
===================================================================
--- binutils-2.42.orig/gas/testsuite/gas/i386/x86-64-relax-3.d	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/gas/testsuite/gas/i386/x86-64-relax-3.d	2024-01-30 16:57:58.487327524 +0100
@@ -12,10 +12,10 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:	eb 1b                	jmp    1f <hidden_def>
 [ 	]*[a-f0-9]+:	eb 1b                	jmp    21 <global_def>
 [ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    b <foo\+0xb>	7: R_X86_64_PLT32	global_def-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    10 <foo\+0x10>	c: R_X86_64_PLT32	weak_def-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    15 <foo\+0x15>	11: R_X86_64_PLT32	weak_hidden_undef-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    1a <foo\+0x1a>	16: R_X86_64_PLT32	weak_hidden_def-0x4
-[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    1f <hidden_def>	1b: R_X86_64_PLT32	hidden_undef-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    10 <foo\+0x10>	c: R_X86_64_PC32	weak_def-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    15 <foo\+0x15>	11: R_X86_64_PC32	weak_hidden_undef-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    1a <foo\+0x1a>	16: R_X86_64_PC32	weak_hidden_def-0x4
+[ 	]*[a-f0-9]+:	e9 00 00 00 00       	jmp    1f <hidden_def>	1b: R_X86_64_PC32	hidden_undef-0x4
 
 0+1f <hidden_def>:
 [ 	]*[a-f0-9]+:	c3                   	ret
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-1.err
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-1.err	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,2 +0,0 @@
-.*relocation R_X86_64_PC32 against symbol `foo' can not be used when making a PIE object; recompile with -fPIE
-#...
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-1a.c
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-1a.c	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,4 +0,0 @@
-void
-foo (void)
-{
-}
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-1b.s
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-1b.s	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,7 +0,0 @@
-	.text
-	.globl	main
-	.type	main, @function
-main:
-	movl	foo(%rip), %eax
-	.size	main, .-main
-	.section	.note.GNU-stack
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2.rd
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2.rd	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,6 +0,0 @@
-#failif
-#...
-.*$TEXTREL$.*
-#...
-[0-9a-f ]+R_X86_64_NONE.*
-#...
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2a.s
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2a.s	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,8 +0,0 @@
-	.text
-	.p2align 4,,15
-	.globl	foo
-	.type	foo, @function
-foo:
-	jmp	bar
-	.size	foo, .-foo
-	.section	.note.GNU-stack,"",@progbits
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2b.c
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2b.c	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,7 +0,0 @@
-#include <stdio.h>
-
-void
-bar (void)
-{
-  puts ("PASS");
-}
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22791-2c.s
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22791-2c.s	2024-01-29 01:00:00.000000000 +0100
+++ /dev/null	1970-01-01 00:00:00.000000000 +0000
@@ -1,12 +0,0 @@
-	.text
-	.p2align 4,,15
-	.globl	main
-	.type	main, @function
-main:
-	subq	$8, %rsp
-	call	foo
-	xorl	%eax, %eax
-	addq	$8, %rsp
-	ret
-	.size	main, .-main
-	.section	.note.GNU-stack,"",@progbits
Index: binutils-2.42/ld/testsuite/ld-x86-64/pr22842b.S
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/pr22842b.S	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/ld/testsuite/ld-x86-64/pr22842b.S	2024-01-30 16:57:58.487327524 +0100
@@ -7,7 +7,7 @@ main:
         leaq    bar(%rip), %rdi
 	addq	%rax, %rdi
 
-	callq	foo
+	callq	foo@PLT
 	xorl	%eax, %eax
 	popq	%rcx
 	retq
Index: binutils-2.42/ld/testsuite/ld-x86-64/x86-64.exp
===================================================================
--- binutils-2.42.orig/ld/testsuite/ld-x86-64/x86-64.exp	2024-01-29 01:00:00.000000000 +0100
+++ binutils-2.42/ld/testsuite/ld-x86-64/x86-64.exp	2024-01-30 16:57:58.487327524 +0100
@@ -1235,44 +1235,6 @@ if { [isnative] && [check_compiler_avail
 	    "pr22393-3-static" \
 	] \
 	[list \
-	    "Build pr22791-1.so" \
-	    "-shared" \
-	    "-fPIC -Wa,-mx86-used-note=yes" \
-	    { pr22791-1a.c } \
-	    {} \
-	    "pr22791-1.so" \
-	] \
-	[list \
-	    "Build pr22791-1" \
-	    "-pie -Wl,--no-as-needed,-z,notext tmpdir/pr22791-1.so" \
-	    "$NOPIE_CFLAGS -Wa,-mx86-used-note=yes" \
-	    { pr22791-1b.s } \
-	    {{error_output "pr22791-1.err"}} \
-	    "pr22791-1" \
-	] \
-	[list \
-	    "Build pr22791-2a.o" \
-	    "" \
-	    "$NOPIE_CFLAGS -Wa,-mx86-used-note=yes" \
-	    { pr22791-2a.s } \
-	] \
-	[list \
-	    "Build pr22791-2.so" \
-	    "-shared tmpdir/pr22791-2a.o" \
-	    "-fPIC -Wa,-mx86-used-note=yes" \
-	    { pr22791-2b.c } \
-	    {{readelf -drW pr22791-2.rd}} \
-	    "pr22791-2.so" \
-	] \
-	[list \
-	    "Build pr22791-2" \
-	    "-pie -Wl,--no-as-needed tmpdir/pr22791-2.so" \
-	    "$NOPIE_CFLAGS -Wa,-mx86-used-note=yes" \
-	    { pr22791-2c.s } \
-	    {{readelf -drW pr22791-2.rd}} \
-	    "pr22791-2" \
-	] \
-	[list \
 	    "Build pr22842.so" \
 	    "-shared" \
 	    "-fPIC -Wa,-mx86-used-note=yes" \
@@ -1762,15 +1724,6 @@ if { [isnative] && [check_compiler_avail
 	    "pass.out" \
 	] \
 	[list \
-	    "Run pr22791-2" \
-	    "-pie -Wl,--no-as-needed tmpdir/pr22791-2.so" \
-	    "-Wa,-mx86-used-note=yes" \
-	    { pr22791-2c.s } \
-	    "pr22791-2" \
-	    "pass.out" \
-	    "$NOPIE_CFLAGS" \
-	] \
-	[list \
 	    "Run pr22842" \
 	    "-pie -Wl,--no-as-needed tmpdir/pr22842.so" \
 	    "-Wa,-mx86-used-note=yes" \

Places

File binutils-revert-plt32-in-branches.diff of Package binutils (Revision c2c450b0da04e695854691221afaafac)

Places