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author | Rui Ueyama <ruiu@google.com> | 2013-09-27 00:07:01 +0000 |
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committer | Rui Ueyama <ruiu@google.com> | 2013-09-27 00:07:01 +0000 |
commit | 0c873adc82a81b0bce317c3e2cb3139e990a0f9e (patch) | |
tree | 5e84958bcbb706131e88776ef82c8fcafbc404c5 /tools/llvm-objdump/COFFDump.cpp | |
parent | deac137da710cd8566b857ee9d1e182d4fd35932 (diff) | |
download | llvm-0c873adc82a81b0bce317c3e2cb3139e990a0f9e.tar.gz llvm-0c873adc82a81b0bce317c3e2cb3139e990a0f9e.tar.bz2 llvm-0c873adc82a81b0bce317c3e2cb3139e990a0f9e.tar.xz |
llvm-objdump: Dump COFF import table if -private-headers option is given.
This is a patch to add capability to llvm-objdump to dump COFF Import Table
entries, so that we can write tests for LLD checking Import Table contents.
llvm-objdump did not print anything but just file name if the format is COFF
and -private-headers option is given. This is a patch adds capability for
dumping DLL Import Table, which is specific to the COFF format.
In this patch I defined a new iterator to iterate over import table entries.
Also added a few functions to COFFObjectFile.cpp to access fields of the entry.
Differential Revision: http://llvm-reviews.chandlerc.com/D1719
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191472 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-objdump/COFFDump.cpp')
-rw-r--r-- | tools/llvm-objdump/COFFDump.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/tools/llvm-objdump/COFFDump.cpp b/tools/llvm-objdump/COFFDump.cpp index bca6fc983d..968e20c7ed 100644 --- a/tools/llvm-objdump/COFFDump.cpp +++ b/tools/llvm-objdump/COFFDump.cpp @@ -227,6 +227,48 @@ static void printCOFFSymbolAddress(llvm::raw_ostream &Out, Out << format(" + 0x%04x", Disp); } +// Prints import tables. The import table is a table containing the list of +// DLL name and symbol names which will be linked by the loader. +static void printImportTables(const COFFObjectFile *Obj) { + outs() << "The Import Tables:\n"; + error_code ec; + for (import_directory_iterator i = Obj->getImportDirectoryBegin(), + e = Obj->getImportDirectoryEnd(); + i != e; i = i.increment(ec)) { + if (ec) + return; + + const import_directory_table_entry *Dir; + StringRef Name; + if (i->getImportTableEntry(Dir)) return; + if (i->getName(Name)) return; + + outs() << format(" lookup %08x", Dir->ImportLookupTableRVA); + outs() << format(" time %08x", Dir->TimeDateStamp); + outs() << format(" fwd %08x", Dir->ForwarderChain); + outs() << format(" name %08x", Dir->NameRVA); + outs() << format(" addr %08x\n\n", Dir->ImportAddressTableRVA); + + outs() << " DLL Name: " << Name << "\n"; + outs() << " Hint/Ord Name\n"; + const COFF::ImportLookupTableEntry32 *entry; + if (i->getImportLookupEntry(entry)) + return; + for (; entry->data; ++entry) { + if (entry->isOrdinal()) { + outs() << format(" % 6d\n", entry->getOrdinal()); + continue; + } + uint16_t Hint; + StringRef Name; + if (Obj->getHintName(entry->getHintNameRVA(), Hint, Name)) + return; + outs() << format(" % 6d %s\n", Hint, Name); + } + outs() << "\n"; + } +} + void llvm::printCOFFUnwindInfo(const COFFObjectFile *Obj) { const coff_file_header *Header; if (error(Obj->getCOFFHeader(Header))) return; @@ -353,3 +395,7 @@ void llvm::printCOFFUnwindInfo(const COFFObjectFile *Obj) { } } } + +void llvm::printCOFFFileHeader(const object::ObjectFile *Obj) { + printImportTables(dyn_cast<const COFFObjectFile>(Obj)); +} |