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authorCary Coutant <ccoutant@google.com>2013-07-01 20:12:11 +0000
committerCary Coutant <ccoutant@google.com>2013-07-01 20:12:11 +0000
commit267257d249baacd6ca4452a02abcbc0ca62e4ba6 (patch)
tree3556c13f7ffe4a7780c2372fcedb2f7766af6bd1
parentchange gdb to use BFD's "dwz" functions (diff)
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* dwarf_reader.cc (Dwarf_ranges_table::read_ranges_table): Save reloc_type_. (Dwarf_ranges_table::read_range_list): Call lookup_reloc. (Dwarf_ranges_table::lookup_reloc): New function. * dwarf_reader.h (Dwarf_ranges_table::Dwarf_ranges_table): Initialize reloc_type_. (Dwarf_ranges_table::lookup_reloc): New function. (Dwarf_ranges_table::reloc_type_): New data member.
-rw-r--r--gold/ChangeLog11
-rw-r--r--gold/dwarf_reader.cc26
-rw-r--r--gold/dwarf_reader.h9
3 files changed, 40 insertions, 6 deletions
diff --git a/gold/ChangeLog b/gold/ChangeLog
index d719df427b9..3ca1cf7fee4 100644
--- a/gold/ChangeLog
+++ b/gold/ChangeLog
@@ -1,3 +1,14 @@
+2013-07-01 Cary Coutant <ccoutant@google.com>
+
+ * dwarf_reader.cc (Dwarf_ranges_table::read_ranges_table): Save
+ reloc_type_.
+ (Dwarf_ranges_table::read_range_list): Call lookup_reloc.
+ (Dwarf_ranges_table::lookup_reloc): New function.
+ * dwarf_reader.h (Dwarf_ranges_table::Dwarf_ranges_table): Initialize
+ reloc_type_.
+ (Dwarf_ranges_table::lookup_reloc): New function.
+ (Dwarf_ranges_table::reloc_type_): New data member.
+
2013-06-27 Jing Yu <jingyu@google.com>
PR gold/15662
diff --git a/gold/dwarf_reader.cc b/gold/dwarf_reader.cc
index 6b01b7fc95a..4233954d178 100644
--- a/gold/dwarf_reader.cc
+++ b/gold/dwarf_reader.cc
@@ -374,6 +374,7 @@ Dwarf_ranges_table::read_ranges_table(
this->ranges_reloc_mapper_ = make_elf_reloc_mapper(object, symtab,
symtab_size);
this->ranges_reloc_mapper_->initialize(reloc_shndx, reloc_type);
+ this->reloc_type_ = reloc_type;
return true;
}
@@ -430,11 +431,8 @@ Dwarf_ranges_table::read_range_list(
unsigned int shndx2 = 0;
if (this->ranges_reloc_mapper_ != NULL)
{
- shndx1 =
- this->ranges_reloc_mapper_->get_reloc_target(offset, &start);
- shndx2 =
- this->ranges_reloc_mapper_->get_reloc_target(offset + addr_size,
- &end);
+ shndx1 = this->lookup_reloc(offset, &start);
+ shndx2 = this->lookup_reloc(offset + addr_size, &end);
}
// End of list is marked by a pair of zeroes.
@@ -460,6 +458,24 @@ Dwarf_ranges_table::read_range_list(
return ranges;
}
+// Look for a relocation at offset OFF in the range table,
+// and return the section index and offset of the target.
+
+unsigned int
+Dwarf_ranges_table::lookup_reloc(off_t off, off_t* target_off)
+{
+ off_t value;
+ unsigned int shndx =
+ this->ranges_reloc_mapper_->get_reloc_target(off, &value);
+ if (shndx == 0)
+ return 0;
+ if (this->reloc_type_ == elfcpp::SHT_REL)
+ *target_off += value;
+ else
+ *target_off = value;
+ return shndx;
+}
+
// class Dwarf_pubnames_table
// Read the pubnames section SHNDX from the object file.
diff --git a/gold/dwarf_reader.h b/gold/dwarf_reader.h
index 13d278a8e24..9ee483c35c1 100644
--- a/gold/dwarf_reader.h
+++ b/gold/dwarf_reader.h
@@ -338,7 +338,7 @@ class Dwarf_ranges_table
Dwarf_ranges_table(Dwarf_info_reader* dwinfo)
: dwinfo_(dwinfo), ranges_shndx_(0), ranges_buffer_(NULL),
ranges_buffer_end_(NULL), owns_ranges_buffer_(false),
- ranges_reloc_mapper_(NULL), output_section_offset_(0)
+ ranges_reloc_mapper_(NULL), reloc_type_(0), output_section_offset_(0)
{ }
~Dwarf_ranges_table()
@@ -365,6 +365,11 @@ class Dwarf_ranges_table
unsigned int ranges_shndx,
off_t ranges_offset);
+ // Look for a relocation at offset OFF in the range table,
+ // and return the section index and offset of the target.
+ unsigned int
+ lookup_reloc(off_t off, off_t* target_off);
+
private:
// The Dwarf_info_reader, for reading data.
Dwarf_info_reader* dwinfo_;
@@ -377,6 +382,8 @@ class Dwarf_ranges_table
bool owns_ranges_buffer_;
// Relocation mapper for the .debug_ranges section.
Elf_reloc_mapper* ranges_reloc_mapper_;
+ // Type of the relocation section (SHT_REL or SHT_RELA).
+ unsigned int reloc_type_;
// For incremental update links, this will hold the offset of the
// input section within the output section. Offsets read from
// relocated data will be relative to the output section, and need