i#3544: RV64: Support RISC-V ELF in module_get_platform() #7247
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Differing from x86 and ARM, 32-bit and 64-bit variants of RISC-V share the same e_machine constant EM_RISCV, thus additional check against e_ident is required to obtain the bitwidth. This fixes test linux.execve-null on riscv64, where DynamoRIO wrongly assumes an execve call to a RISC-V ELF will fail, thus loses control of the child process. Issue: DynamoRIO#3544
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Differing from x86 and ARM, 32-bit and 64-bit variants of RISC-V share the same e_machine constant EM_RISCV, thus additional check against e_ident is required to obtain the bitwidth.
This fixes test linux.execve-null on riscv64, where DynamoRIO wrongly assumes an execve call to a RISC-V ELF will fail, thus loses control of the child process.
Issue: #3544