diff options
| author | Deyuan Guo ext:(%2C%20Nilay%20Vaish%20%3Cnilay%40cs.wisc.edu%3E) <guodeyuan@tsinghua.org.cn> | 2013-04-17 16:07:19 -0500 |
|---|---|---|
| committer | Deyuan Guo ext:(%2C%20Nilay%20Vaish%20%3Cnilay%40cs.wisc.edu%3E) <guodeyuan@tsinghua.org.cn> | 2013-04-17 16:07:19 -0500 |
| commit | b54e11862878cf88a427fa225407d1128abd21f2 (patch) | |
| tree | 66f09330565822fd9123de93feebd3718a7fbd69 /src/base/loader | |
| parent | 3ff091bdf401113057c26cf1087cf0e872154265 (diff) | |
| download | gem5-b54e11862878cf88a427fa225407d1128abd21f2.tar.xz | |
base: load weak symbols from object file
Without loading weak symbols into gem5, some function names and the given PC
cannot correspond correctly, because the binding attributes of unction names
in an ELF file are not only STB_GLOBAL or STB_LOCAL, but also STB_WEAK. This
patch adds a function for loading weak symbols.
Committed by: Nilay Vaish <nilay@cs.wisc.edu>
Diffstat (limited to 'src/base/loader')
| -rw-r--r-- | src/base/loader/elf_object.cc | 6 | ||||
| -rw-r--r-- | src/base/loader/elf_object.hh | 2 | ||||
| -rw-r--r-- | src/base/loader/object_file.hh | 3 |
3 files changed, 11 insertions, 0 deletions
diff --git a/src/base/loader/elf_object.cc b/src/base/loader/elf_object.cc index f6a18db8a..b6253adbe 100644 --- a/src/base/loader/elf_object.cc +++ b/src/base/loader/elf_object.cc @@ -415,6 +415,12 @@ ElfObject::loadLocalSymbols(SymbolTable *symtab, Addr addrMask) } bool +ElfObject::loadWeakSymbols(SymbolTable *symtab, Addr addrMask) +{ + return loadSomeSymbols(symtab, STB_WEAK, addrMask); +} + +bool ElfObject::loadSections(PortProxy& memProxy, Addr addrMask) { if (!ObjectFile::loadSections(memProxy, addrMask)) diff --git a/src/base/loader/elf_object.hh b/src/base/loader/elf_object.hh index 350a80db1..d3d3e5197 100644 --- a/src/base/loader/elf_object.hh +++ b/src/base/loader/elf_object.hh @@ -71,6 +71,8 @@ class ElfObject : public ObjectFile std::numeric_limits<Addr>::max()); virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask = std::numeric_limits<Addr>::max()); + virtual bool loadWeakSymbols(SymbolTable *symtab, Addr addrMask = + std::numeric_limits<Addr>::max()); virtual bool isDynamic() { return sectionExists(".interp"); } virtual bool hasTLS() { return sectionExists(".tbss"); } diff --git a/src/base/loader/object_file.hh b/src/base/loader/object_file.hh index 4a789d321..bdc9a31a1 100644 --- a/src/base/loader/object_file.hh +++ b/src/base/loader/object_file.hh @@ -89,6 +89,9 @@ class ObjectFile std::numeric_limits<Addr>::max()) = 0; virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask = std::numeric_limits<Addr>::max()) = 0; + virtual bool loadWeakSymbols(SymbolTable *symtab, Addr addrMask = + std::numeric_limits<Addr>::max()) + { return false; } virtual bool isDynamic() { return false; } virtual bool hasTLS() { return false; } |