gem5 - gem5

Age	Commit message (Collapse)	Author
2016-11-09	style: [patch 1/22] use /r/3648/ to reorganize includes	Brandon Potter

2016-03-17	base: add symbol support for dynamic libraries	Brandon Potter
	Libraries are loaded into the process address space using the mmap system call. Conveniently, this happens to be a good time to update the process symbol table with the library's incoming symbols so we handle the table update from within the system call. This works just like an application's normal symbols. The only difference between a dynamic library and a main executable is when the symbol table update occurs. The symbol table update for an executable happens at program load time and is finished before the process ever begins executing. Since dynamic linking happens at runtime, the symbol loading happens after the library is first loaded into the process address space. The library binary is examined at this time for a symbol section and that section is parsed for symbol types with specific bindings (global, local, weak). Subsequently, these symbols are added to the table and are available for use by gem5 for things like trace generation. Checkpointing should work just as it did previously. The address space (and therefore the library) will be recorded and the symbol table will be entirely recorded. (It's not possible to do anything clever like checkpoint a program and then load the program back with different libraries with LD_LIBRARY_PATH, because the library becomes part of the address space after being loaded.)
2015-07-03	base: remove fd from object loaders	Curtis Dunham
	All the object loaders directly examine the (already completely loaded by object_file.cc) memory image. There is no current motivation to keep the fd around.
2011-04-15	trace: reimplement the DTRACE function so it doesn't use a vector	Nathan Binkert
	At the same time, rename the trace flags to debug flags since they have broader usage than simply tracing. This means that --trace-flags is now --debug-flags and --trace-help is now --debug-help
2007-01-16	Don't add symbols for loaded files to symbol table since they are pretty ↵	Ali Saidi
	much meaningless with all the copying that goes on --HG-- extra : convert_revision : 4d2c1bb72c0344d78d9c3d5958feb3de247102a0
2006-11-30	Load the hypervisor symbols twice, once with an address mask so that we can ↵	Ali Saidi
	get symbols for where it's copied to in memory Add the ability to use an address mask for symbol loading Rather then silently failing on platform accesses panic Move BadAddr/IsaFake no Device from Tsunami Let the system kernel be none, but warn about it configs/common/FSConfig.py: We don't have a kernel for sparc yet src/arch/sparc/system.cc: Load the hypervisor symbols twice, once with an address mask so that we can get symbols for where it's copied to in memory src/base/loader/aout_object.cc: src/base/loader/aout_object.hh: src/base/loader/ecoff_object.cc: src/base/loader/ecoff_object.hh: src/base/loader/elf_object.cc: src/base/loader/elf_object.hh: src/base/loader/object_file.hh: src/base/loader/raw_object.cc: src/base/loader/raw_object.hh: Add the ability to use an address mask for symbol loading src/dev/sparc/t1000.cc: Rather then silently failing on platform accesses panic src/dev/sparc/t1000.hh: fix up a couple of platform comments src/python/m5/objects/Bus.py: src/python/m5/objects/Device.py: src/python/m5/objects/T1000.py: src/python/m5/objects/Tsunami.py: Move BadAddr/IsaFake no Device from Tsunami src/python/m5/objects/System.py: Let kernel be none src/sim/system.cc: Let the system kernel be none, but warn about it --HG-- extra : convert_revision : 92f6afef599a3d3c7c5026d03434102c41c7b5f4
2006-11-10	fix endian issues with condition codes	Ali Saidi
	use memcpy instead of bcopy s/u_int32_t/uint32_t/g fixup endian code to work with solaris hack to make sure htole() works... Nate, have a good idea to fix this? src/arch/sparc/faults.cc: set the reset address to be 40 bits. Makes PC printing easier at least for now. src/arch/sparc/isa/base.isa: fix endian issues with condition codes src/arch/sparc/tlb.hh: add implemented physical addres constants src/arch/sparc/utility.hh: add tlb.hh to utilities src/base/loader/raw_object.cc: add a symbol <filename>_start to the symbol table for binaries files src/base/remote_gdb.cc: use memcpy instead of bcopy src/cpu/exetrace.cc: clean up printing a bit more src/cpu/m5legion_interface.h: add tons to the shared interface src/dev/ethertap.cc: s/u_int32_t/uint32_t/g src/dev/ide_atareg.h: fixup endian code to work with solaris src/dev/pcidev.cc: src/sim/param.hh: hack to make sure htole() works... --HG-- extra : convert_revision : 4579392184b40bcc1062671a953c6595c685e9b2
2006-11-09	Get SPARC to the point that it starts running. Add ability to load the ROM ↵	Ali Saidi
	bin files, cleanup lockstep printing a bit Since we don't have a platform yet, you need to comment out the default responder stuff in Bus.py to make it work. SConstruct: Add TARGET_ISA to the list of environment variables that end up in the build_env for python configs/common/FSConfig.py: add a simple SPARC system to being testing with, you'll need to change makeLinuxAlphaSystem to makeSparcSystem in fs.py for now src/SConscript: add a raw file object, at least until we get more info about how to compile openboot properly src/arch/sparc/system.cc: src/arch/sparc/system.hh: add parameters for ROM files (OBP/Reset/Hypervisor), a ROM, load files into ROM src/base/loader/object_file.cc: src/base/loader/object_file.hh: add option to try raw when nothing works src/cpu/exetrace.cc: cleanup lockstep printing a little bit src/cpu/m5legion_interface.h: change the instruction to be 32 bits because it is src/mem/physical.cc: fix assert that doesn't work if memory starts somewhere above 0 src/python/m5/objects/BaseCPU.py: Add if statement to choose between sparc tlbs and alpha tlbs src/python/m5/objects/System.py: Add a sparc system that sets the rom addresses correctly src/python/m5/params.py: add the ability to add Addr() together --HG-- extra : convert_revision : bbbd8a56134f2dda2728091f740e2f7119b0c4af