Refactor Sized_relobj_file::do_relocate_sections.

gold/
	* aarch64.cc (AArch64_relobj::do_relocate_sections): Call
	Sized_relobj_file::relocate_section_range().
	* arm.cc (Arm_relobj::do_relocate_sections): Likewise.
	* object.h (Sized_relobj_file::relocate_section_range): New method.
	* reloc.cc (Sized_relobj_file::do_relocate_sections): Move
	implementation...
	(Sized_relobj_file::relocate_section_range): ...to new method.

5 files changed, 93 insertions, 9 deletions

diff --git a/gold/ChangeLog b/gold/ChangeLog
index 3f1a2fc..10c21b6 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,13 @@
+2017-01-10  Cary Coutant  <ccoutant@gmail.com>
+
+	* aarch64.cc (AArch64_relobj::do_relocate_sections): Call
+	Sized_relobj_file::relocate_section_range().
+	* arm.cc (Arm_relobj::do_relocate_sections): Likewise.
+	* object.h (Sized_relobj_file::relocate_section_range): New method.
+	* reloc.cc (Sized_relobj_file::do_relocate_sections): Move
+	implementation...
+	(Sized_relobj_file::relocate_section_range): ...to new method.
+
 2017-01-10  Alan Modra  <amodra@gmail.com>
 
 	* testsuite/ver_test_8.sh: Accept .TOC. in lieu of
diff --git a/gold/aarch64.cc b/gold/aarch64.cc
index facbbd8..b207dcd 100644
--- a/gold/aarch64.cc
+++ b/gold/aarch64.cc
@@ -2044,9 +2044,9 @@ AArch64_relobj<size, big_endian>::do_relocate_sections(
     const unsigned char* pshdrs, Output_file* of,
     typename Sized_relobj_file<size, big_endian>::Views* pviews)
 {
-  // Call parent to relocate sections.
-  Sized_relobj_file<size, big_endian>::do_relocate_sections(symtab, layout,
-							    pshdrs, of, pviews);
+  // Relocate the section data.
+  this->relocate_section_range(symtab, layout, pshdrs, of, pviews,
+			       1, this->shnum() - 1);
 
   // We do not generate stubs if doing a relocatable link.
   if (parameters->options().relocatable())
diff --git a/gold/arm.cc b/gold/arm.cc
index 5983128..ff472ea 100644
--- a/gold/arm.cc
+++ b/gold/arm.cc
@@ -6587,9 +6587,9 @@ Arm_relobj<big_endian>::do_relocate_sections(
     Output_file* of,
     typename Sized_relobj_file<32, big_endian>::Views* pviews)
 {
-  // Call parent to relocate sections.
-  Sized_relobj_file<32, big_endian>::do_relocate_sections(symtab, layout,
-							  pshdrs, of, pviews);
+  // Relocate the section data.
+  this->relocate_section_range(symtab, layout, pshdrs, of, pviews,
+			       1, this->shnum() - 1);
 
   // We do not generate stubs if doing a relocatable link.
   if (parameters->options().relocatable())
diff --git a/gold/object.h b/gold/object.h
index 84fe5a6..508e79c 100644
--- a/gold/object.h
+++ b/gold/object.h
@@ -2562,6 +2562,13 @@ class Sized_relobj_file : public Sized_relobj<size, big_endian>
 		       const unsigned char* pshdrs, Output_file* of,
 		       Views* pviews);
 
+  // Relocate section data for a range of sections.
+  void
+  relocate_section_range(const Symbol_table* symtab, const Layout* layout,
+			 const unsigned char* pshdrs, Output_file* of,
+			 Views* pviews, unsigned int start_shndx,
+			 unsigned int end_shndx);
+
   // Adjust this local symbol value.  Return false if the symbol
   // should be discarded from the output file.
   virtual bool
diff --git a/gold/reloc.cc b/gold/reloc.cc
index bc5bc8b..26d84d0 100644
--- a/gold/reloc.cc
+++ b/gold/reloc.cc
@@ -871,7 +871,30 @@ Sized_relobj_file<size, big_endian>::do_relocate_sections(
     Output_file* of,
     Views* pviews)
 {
-  unsigned int shnum = this->shnum();
+  this->relocate_section_range(symtab, layout, pshdrs, of, pviews,
+			       1, this->shnum() - 1);
+}
+
+// Relocate section data for the range of sections START_SHNDX through
+// END_SHNDX.
+
+template<int size, bool big_endian>
+void
+Sized_relobj_file<size, big_endian>::relocate_section_range(
+    const Symbol_table* symtab,
+    const Layout* layout,
+    const unsigned char* pshdrs,
+    Output_file* of,
+    Views* pviews,
+    unsigned int start_shndx,
+    unsigned int end_shndx)
+{
+  gold_assert(start_shndx >= 1);
+  gold_assert(end_shndx < this->shnum());
+
+  if (end_shndx < start_shndx)
+    return;
+
   Sized_target<size, big_endian>* target =
     parameters->sized_target<size, big_endian>();
 
@@ -883,8 +906,8 @@ Sized_relobj_file<size, big_endian>::do_relocate_sections(
   relinfo.layout = layout;
   relinfo.object = this;
 
-  const unsigned char* p = pshdrs + This::shdr_size;
-  for (unsigned int i = 1; i < shnum; ++i, p += This::shdr_size)
+  const unsigned char* p = pshdrs + start_shndx * This::shdr_size;
+  for (unsigned int i = start_shndx; i <= end_shndx; ++i, p += This::shdr_size)
     {
       typename This::Shdr shdr(p);
 
@@ -1718,6 +1741,17 @@ Sized_relobj_file<32, false>::do_relocate_sections(
     Views* pviews);
 
 template
+void
+Sized_relobj_file<32, false>::relocate_section_range(
+    const Symbol_table* symtab,
+    const Layout* layout,
+    const unsigned char* pshdrs,
+    Output_file* of,
+    Views* pviews,
+    unsigned int start_shndx,
+    unsigned int end_shndx);
+
+template
 unsigned char*
 Sized_relobj_file<32, false>::do_get_output_view(
     unsigned int shndx,
@@ -1735,6 +1769,17 @@ Sized_relobj_file<32, true>::do_relocate_sections(
     Views* pviews);
 
 template
+void
+Sized_relobj_file<32, true>::relocate_section_range(
+    const Symbol_table* symtab,
+    const Layout* layout,
+    const unsigned char* pshdrs,
+    Output_file* of,
+    Views* pviews,
+    unsigned int start_shndx,
+    unsigned int end_shndx);
+
+template
 unsigned char*
 Sized_relobj_file<32, true>::do_get_output_view(
     unsigned int shndx,
@@ -1752,6 +1797,17 @@ Sized_relobj_file<64, false>::do_relocate_sections(
     Views* pviews);
 
 template
+void
+Sized_relobj_file<64, false>::relocate_section_range(
+    const Symbol_table* symtab,
+    const Layout* layout,
+    const unsigned char* pshdrs,
+    Output_file* of,
+    Views* pviews,
+    unsigned int start_shndx,
+    unsigned int end_shndx);
+
+template
 unsigned char*
 Sized_relobj_file<64, false>::do_get_output_view(
     unsigned int shndx,
@@ -1769,6 +1825,17 @@ Sized_relobj_file<64, true>::do_relocate_sections(
     Views* pviews);
 
 template
+void
+Sized_relobj_file<64, true>::relocate_section_range(
+    const Symbol_table* symtab,
+    const Layout* layout,
+    const unsigned char* pshdrs,
+    Output_file* of,
+    Views* pviews,
+    unsigned int start_shndx,
+    unsigned int end_shndx);
+
+template
 unsigned char*
 Sized_relobj_file<64, true>::do_get_output_view(
     unsigned int shndx,