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| author | Gabe Black <gblack@eecs.umich.edu> | 2010-06-02 12:58:00 -0500 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2010-06-02 12:58:00 -0500 |
| commit | 3951afd2fa6140f85a94c9636ac2d9e9d3a1c764 (patch) | |
| tree | c87b78c2a3e450fb5cbc4529e15446fb97b2571f | |
| parent | ebb273bb7b8a871c1c5c07e00593e0194985aa46 (diff) | |
| download | gem5-3951afd2fa6140f85a94c9636ac2d9e9d3a1c764.tar.xz | |
ARM: Detect thumb mode elf images.
| -rw-r--r-- | src/base/loader/elf_object.cc | 7 | ||||
| -rw-r--r-- | src/base/loader/object_file.hh | 1 | ||||
| -rw-r--r-- | src/sim/process.cc | 8 |
3 files changed, 13 insertions, 3 deletions
diff --git a/src/base/loader/elf_object.cc b/src/base/loader/elf_object.cc index 60f0f99b4..6096cb2e3 100644 --- a/src/base/loader/elf_object.cc +++ b/src/base/loader/elf_object.cc @@ -34,6 +34,7 @@ #include "gelf.h" +#include "base/bitfield.hh" #include "base/loader/elf_object.hh" #include "base/loader/symtab.hh" #include "base/misc.hh" @@ -96,7 +97,11 @@ ElfObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data) } else if (ehdr.e_ident[EI_CLASS] == ELFCLASS64) { arch = ObjectFile::Alpha; } else if (ehdr.e_machine == EM_ARM) { - arch = ObjectFile::Arm; + if (bits(ehdr.e_entry, 0)) { + arch = ObjectFile::Thumb; + } else { + arch = ObjectFile::Arm; + } } else if (ehdr.e_machine == EM_PPC && ehdr.e_ident[EI_CLASS] == ELFCLASS32) { if (ehdr.e_ident[EI_DATA] == ELFDATA2MSB) { diff --git a/src/base/loader/object_file.hh b/src/base/loader/object_file.hh index b08f1c633..bffab0cc5 100644 --- a/src/base/loader/object_file.hh +++ b/src/base/loader/object_file.hh @@ -53,6 +53,7 @@ class ObjectFile X86_64, I386, Arm, + Thumb, Power }; diff --git a/src/sim/process.cc b/src/sim/process.cc index 957c3cc3e..18f33abdc 100644 --- a/src/sim/process.cc +++ b/src/sim/process.cc @@ -755,14 +755,18 @@ LiveProcess::create(LiveProcessParams * params) fatal("Unknown/unsupported operating system."); } #elif THE_ISA == ARM_ISA - if (objFile->getArch() != ObjectFile::Arm) + if (objFile->getArch() != ObjectFile::Arm && + objFile->getArch() != ObjectFile::Thumb) fatal("Object file architecture does not match compiled ISA (ARM)."); switch (objFile->getOpSys()) { case ObjectFile::UnknownOpSys: warn("Unknown operating system; assuming Linux."); // fall through case ObjectFile::Linux: - process = new ArmLinuxProcess(params, objFile); + if (objFile->getArch() == ObjectFile::Thumb) + panic("Thumb processes not yet supported.\n"); + else + process = new ArmLinuxProcess(params, objFile); break; case ObjectFile::LinuxArmOABI: fatal("M5 does not support ARM OABI binaries. Please recompile with an" |