riscv: elf: add .riscv.attributes parsing
This implements the elf loader hook to parse RV specific
.riscv.attributes section. This section is inserted by compilers
(gcc/llvm) with build related information such as -march organized as
tag/value attribute pairs.
It identifies the various attribute tags (and corresponding values) as
currently specified in the psABI specification.
This patch only implements the elf parsing mechanics, leaving out the
recording/usage of the attributes to subsequent patches.
Reported-by: kernel test robot <lkp@intel.com> # code under CONFIG_COMPAT
Signed-off-by: Vineet Gupta <vineetg@rivosinc.com>
4 files changed
