gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gold / output.cc

diff --git a/gold/output.cc b/gold/output.cc
index 64df3e8e2c64218a0b0aa0ee061f36fa936408e8..75d2fc354a55fbec400ba6a654901cb6b9df7cf5 100644 (file)
--- a/gold/output.cc
+++ b/gold/output.cc
@@ -1,6 +1,6 @@
 // output.cc -- manage the output file for gold
 
-// Copyright (C) 2006-2016 Free Software Foundation, Inc.
+// Copyright (C) 2006-2020 Free Software Foundation, Inc.
 // Written by Ian Lance Taylor <iant@google.com>.
 
 // This file is part of gold.
@@ -127,14 +127,26 @@ namespace gold
 static int
 gold_fallocate(int o, off_t offset, off_t len)
 {
+  if (len <= 0)
+    return 0;
+
 #ifdef HAVE_POSIX_FALLOCATE
   if (parameters->options().posix_fallocate())
-    return ::posix_fallocate(o, offset, len);
+    {
+      int err = ::posix_fallocate(o, offset, len);
+      if (err != EINVAL && err != ENOSYS && err != EOPNOTSUPP)
+       return err;
+    }
 #endif // defined(HAVE_POSIX_FALLOCATE)
+
 #ifdef HAVE_FALLOCATE
-  if (::fallocate(o, 0, offset, len) == 0)
-    return 0;
+  {
+    int err = ::fallocate(o, 0, offset, len);
+    if (err != EINVAL && err != ENOSYS && err != EOPNOTSUPP)
+      return err;
+  }
 #endif // defined(HAVE_FALLOCATE)
+
   if (::ftruncate(o, offset + len) < 0)
     return errno;
   return 0;
@@ -2383,7 +2395,8 @@ Output_section::Output_section(const char* name, elfcpp::Elf_Word type,
     lookup_maps_(new Output_section_lookup_maps),
     free_list_(),
     free_space_fill_(NULL),
-    patch_space_(0)
+    patch_space_(0),
+    reloc_section_(NULL)
 {
   // An unallocated section has no address.  Forcing this means that
   // we don't need special treatment for symbols defined in debug
@@ -2435,7 +2448,13 @@ Output_section::add_input_section(Layout* layout,
                                  unsigned int reloc_shndx,
                                  bool have_sections_script)
 {
+  section_size_type input_section_size = shdr.get_sh_size();
+  section_size_type uncompressed_size;
   elfcpp::Elf_Xword addralign = shdr.get_sh_addralign();
+  if (object->section_is_compressed(shndx, &uncompressed_size,
+                                   &addralign))
+    input_section_size = uncompressed_size;
+
   if ((addralign & (addralign - 1)) != 0)
     {
       object->error(_("invalid alignment %lu for section \"%s\""),
@@ -2485,11 +2504,6 @@ Output_section::add_input_section(Layout* layout,
        }
     }
 
-  section_size_type input_section_size = shdr.get_sh_size();
-  section_size_type uncompressed_size;
-  if (object->section_is_compressed(shndx, &uncompressed_size))
-    input_section_size = uncompressed_size;
-
   off_t offset_in_section;
 
   if (this->has_fixed_layout())
@@ -3533,8 +3547,10 @@ Output_section::Input_section_sort_section_prefix_special_ordering_compare
     const Output_section::Input_section_sort_entry& s2) const
 {
   // Some input section names have special ordering requirements.
-  int o1 = Layout::special_ordering_of_input_section(s1.section_name().c_str());
-  int o2 = Layout::special_ordering_of_input_section(s2.section_name().c_str());
+  const char *s1_section_name = s1.section_name().c_str();
+  const char *s2_section_name = s2.section_name().c_str();
+  int o1 = Layout::special_ordering_of_input_section(s1_section_name);
+  int o2 = Layout::special_ordering_of_input_section(s2_section_name);
   if (o1 != o2)
     {
       if (o1 < 0)
@@ -3544,6 +3560,8 @@ Output_section::Input_section_sort_section_prefix_special_ordering_compare
       else
        return o1 < o2;
     }
+  else if (is_prefix_of(".text.sorted", s1_section_name))
+    return strcmp(s1_section_name, s2_section_name) <= 0;
 
   // Keep input order otherwise.
   return s1.index() < s2.index();