arch-riscv: Add missing system calls

This patch adds all system calls present in riscv-gnu-toolchain at
commit hash 65cb174. Many of them do not have implementations in gem5, so
they are just placeholders.

[Remove the variadic macro and replace it with a function that has
default arguments because variadic macros may not be portable across
compilers]
[Remove spaces around default arguments of createSyscall for better
style]
[Switch from using a loose function to using SyscallDesc's new
constructor]

Change-Id: Iff97c689109121b39df423c72d0e79c6366e31b9
Reviewed-on: https://gem5-review.googlesource.com/5322
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Alec Roelke <ar4jc@virginia.edu>

1 files changed, 35 insertions, 0 deletions

diff --git a/src/arch/riscv/linux/linux.hh b/src/arch/riscv/linux/linux.hh
index 0c76fa6ed..cfc1d4fd7 100644
--- a/src/arch/riscv/linux/linux.hh
+++ b/src/arch/riscv/linux/linux.hh
@@ -152,6 +152,41 @@ class RiscvLinux : public Linux
         uint64_t st_ctime_nsec;
         int32_t ___glibc_reserved[2];
     } tgt_stat64;
+
+    typedef struct {
+        int32_t val[2];
+    } tgt_fsid_t;
+
+    typedef struct {
+        uint64_t f_type;
+        uint64_t f_bsize;
+        uint64_t f_blocks;
+        uint64_t f_bfree;
+        uint64_t f_bavail;
+        uint64_t f_files;
+        uint64_t f_ffree;
+        tgt_fsid_t f_fsid;
+        uint64_t f_namelen;
+        uint64_t f_frsize;
+        uint64_t f_flags;
+        uint64_t f_spare[4];
+    } tgt_statfs;
+
+    typedef struct {
+        int64_t uptime;
+        uint64_t loads[3];
+        uint64_t totalram;
+        uint64_t freeram;
+        uint64_t sharedram;
+        uint64_t bufferram;
+        uint64_t totalswap;
+        uint64_t freeswap;
+        uint16_t procs;
+        uint16_t pad;
+        uint64_t totalhigh;
+        uint64_t freehigh;
+        uint32_t mem_unit;
+    } tgt_sysinfo;
 };
 
 #endif