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Return ErrorOr from getSection.

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This also improves the logic of what is an error:

* getSection(uint_32): only return an error if the index is out of bounds. The
  index 0 corresponds to a perfectly valid entry.
* getSection(Elf_Sym): Returns null for symbols that normally don't have
  sections and error for out of bound indexes.

In many places this just moves the report_fatal_error up the stack, but those
can then be fixed in smaller patches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241156 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2015-07-01 12:56:27 +00:00
parent 37cb5f1c2d
commit df3edb6d36
9 changed files with 144 additions and 75 deletions
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2
lib/Object/Error.cpp
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@ -43,6 +43,8 @@ std::string _object_error_category::message(int EV) const {
return "The end of the file was unexpectedly encountered";
case object_error::string_table_non_null_end:
return "String table must end with a null terminator";
case object_error::invalid_section_index:
return "Invalid section index";
case object_error::bitcode_section_not_found:
return "Bitcode section not found in object file";
case object_error::macho_small_load_command: