From 0945afdf91b815e89526340b1304577e6f159e3b Mon Sep 17 00:00:00 2001 From: Tsukasa OI Date: Fri, 9 Sep 2022 11:56:25 +0000 Subject: [PATCH] RISC-V: Add 'Smepmp' with 'Zicsr' dependency Volume II: Privileged Architecture of the RISC-V ISA Manual states that the privileged architecture requires the 'Zicsr' extension. However, current GNU Binutils has no direct way whether the program has dependency to the privileged architecture itself. As a workaround, we should add implications from privileged extensions that either add new CSRs, extend existing CSRs or depends on using CSRs. This commit adds the 'Smepmp' extension (that extends CSRs defined in the privileged architecture and should have indirect dependency to 'Zicsr'). bfd/ChangeLog: * elfxx-riscv.c (riscv_implicit_subsets): Add 'Smepmp' -> 'Zicsr' implication. (riscv_supported_std_s_ext): Add 'Smepmp'. --- bfd/elfxx-riscv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/bfd/elfxx-riscv.c b/bfd/elfxx-riscv.c index a996595ca09..b220638e807 100644 --- a/bfd/elfxx-riscv.c +++ b/bfd/elfxx-riscv.c @@ -1097,6 +1097,7 @@ static struct riscv_implicit_subset riscv_implicit_subsets[] = {"zks", "zbkx", check_implicit_always}, {"zks", "zksed", check_implicit_always}, {"zks", "zksh", check_implicit_always}, + {"smepmp", "zicsr", check_implicit_always}, {"smstateen", "zicsr", check_implicit_always}, {"sscofpmf", "zicsr", check_implicit_always}, {"sstc", "zicsr", check_implicit_always}, @@ -1214,6 +1215,7 @@ static struct riscv_supported_ext riscv_supported_std_z_ext[] = static struct riscv_supported_ext riscv_supported_std_s_ext[] = { + {"smepmp", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"smstateen", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"sscofpmf", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 }, {"sstc", ISA_SPEC_CLASS_DRAFT, 1, 0, 0 },