SWDEV-94189 - ORCA RT: do not use temp files
This is memfile implementation, an interface to plug into libelf and emulate files in memory w/o any IO.
If passed filename to open() is empty it will use in memory file, otherwise proxy it to the real file IO routine.
This allows RT not to use temp files. Next this interface will be plugged to the finalizer.
Testing: smoke, precheckin, conformance 2.0 reallyquick, test_compiler 1.2 with -legacy, test_compiler with -save-temps-all and -g -O0 -mem2reg=0
Reviewed by Evgeny Mankov
Affected files ...
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/elf.cpp#34 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/elf.hpp#23 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/elf_utils.cpp#2 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/utils/libelf/_libelf_config.h#3 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/utils/libelf/build/Makefile.libelf#5 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/utils/libelf/elf_update.c#12 edit
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/utils/libelf/memfile.cpp#1 add
... //depot/stg/opencl/drivers/opencl/compiler/lib/loaders/elf/utils/libelf/memfile.h#1 add
foreman