[llvm] r178677 - Implement sectionContainsSymbol for ELF.

[Eric Christopher]

Author: echristo
Date: Wed Apr  3 13:31:19 2013
New Revision: 178677

URL: http://llvm.org/viewvc/llvm-project?rev=178677&view=rev
Log:
Implement sectionContainsSymbol for ELF.

Patch by Nico Rieck!

Modified:
    llvm/trunk/include/llvm/Object/ELF.h
    llvm/trunk/test/Object/Mips/feature.test

Modified: llvm/trunk/include/llvm/Object/ELF.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/Object/ELF.h?rev=178677&r1=178676&r2=178677&view=diff
==============================================================================
--- llvm/trunk/include/llvm/Object/ELF.h (original)
+++ llvm/trunk/include/llvm/Object/ELF.h Wed Apr  3 13:31:19 2013
@@ -1378,8 +1378,16 @@ template<class ELFT>
 error_code ELFObjectFile<ELFT>::sectionContainsSymbol(DataRefImpl Sec,
                                                       DataRefImpl Symb,
                                                       bool &Result) const {
-  // FIXME: Unimplemented.
-  Result = false;
+  validateSymbol(Symb);
+
+  const Elf_Shdr *sec = reinterpret_cast<const Elf_Shdr *>(Sec.p);
+  const Elf_Sym  *symb = getSymbol(Symb);
+
+  unsigned shndx = symb->st_shndx;
+  bool Reserved = shndx >= ELF::SHN_LORESERVE
+               && shndx <= ELF::SHN_HIRESERVE;
+
+  Result = !Reserved && (sec == getSection(symb->st_shndx));
   return object_error::success;
 }
 

Modified: llvm/trunk/test/Object/Mips/feature.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Object/Mips/feature.test?rev=178677&r1=178676&r2=178677&view=diff
==============================================================================
--- llvm/trunk/test/Object/Mips/feature.test (original)
+++ llvm/trunk/test/Object/Mips/feature.test Wed Apr  3 13:31:19 2013
@@ -2,10 +2,12 @@ RUN: llvm-objdump -disassemble -triple m
 RUN: | FileCheck %s
 
 CHECK: Disassembly of section .text:
-CHECK: .text:
+CHECK: dext:
 CHECK:        0:	08 00 e0 03                                  	jr	$ra
 CHECK:        4:	43 49 82 7c                                  	dext $2, $4, 5, 10
+CHECK: dextu:
 CHECK:        8:	08 00 e0 03                                  	jr	$ra
 CHECK:        c:	83 28 82 7c                                  	dext $2, $4, 2, 6
+CHECK: dextm:
 CHECK:       10:	08 00 e0 03                                  	jr	$ra
 CHECK:       14:	43 09 82 7c                                  	dext $2, $4, 5, 2