Fix RISC-V port issues (#2642)

fix riscv{32,64} stuff

Author: rmalmain

libafl_qemu/src/modules/usermode/asan_guest.rs

@@ -123,7 +123,12 @@ pub struct AsanGuestModule<F> {
     mappings: Vec<QemuAsanGuestMapping>,
 }
 
-#[cfg(any(cpu_target = "aarch64", cpu_target = "x86_64", feature = "clippy"))]
+#[cfg(any(
+    cpu_target = "aarch64",
+    cpu_target = "x86_64",
+    cpu_target = "riscv64",
+    feature = "clippy"
+))]
 impl<F> AsanGuestModule<F> {
     const HIGH_SHADOW_START: GuestAddr = 0x02008fff7000;
     const HIGH_SHADOW_END: GuestAddr = 0x10007fff7fff;
@@ -135,7 +140,8 @@ impl<F> AsanGuestModule<F> {
     cpu_target = "arm",
     cpu_target = "i386",
     cpu_target = "mips",
-    cpu_target = "ppc"
+    cpu_target = "ppc",
+    cpu_target = "riscv32",
 ))]
 impl<F> AsanGuestModule<F> {
     const HIGH_SHADOW_START: GuestAddr = 0x28000000;

libafl_qemu/src/modules/usermode/snapshot.rs

@@ -8,15 +8,16 @@ use thread_local::ThreadLocal;
 
 #[cfg(any(cpu_target = "arm", cpu_target = "i386", cpu_target = "mips"))]
 use crate::SYS_fstatat64;
-#[cfg(not(cpu_target = "arm"))]
+#[cfg(not(any(cpu_target = "arm", cpu_target = "riscv32")))]
 use crate::SYS_mmap;
-#[cfg(any(cpu_target = "arm", cpu_target = "mips"))]
+#[cfg(any(cpu_target = "arm", cpu_target = "mips", cpu_target = "riscv32"))]
 use crate::SYS_mmap2;
 #[cfg(not(any(
     cpu_target = "arm",
     cpu_target = "mips",
     cpu_target = "i386",
-    cpu_target = "ppc"
+    cpu_target = "ppc",
+    cpu_target = "riscv32",
 )))]
 use crate::SYS_newfstatat;
 use crate::{
@@ -26,9 +27,10 @@ use crate::{
         NOP_ADDRESS_FILTER,
     },
     qemu::{Hook, SyscallHookResult},
-    Qemu, SYS_brk, SYS_fstat, SYS_fstatfs, SYS_futex, SYS_getrandom, SYS_mprotect, SYS_mremap,
-    SYS_munmap, SYS_pread64, SYS_read, SYS_readlinkat, SYS_statfs,
+    Qemu, SYS_brk, SYS_mprotect, SYS_mremap, SYS_munmap, SYS_pread64, SYS_read, SYS_readlinkat,
 };
+#[cfg(not(cpu_target = "riscv32"))]
+use crate::{SYS_fstat, SYS_fstatfs, SYS_futex, SYS_getrandom, SYS_statfs};
 
 // TODO use the functions provided by Qemu
 pub const SNAPSHOT_PAGE_SIZE: usize = 4096;
@@ -804,6 +806,7 @@ where
             let h = emulator_modules.get_mut::<SnapshotModule>().unwrap();
             h.access(a2, a3 as usize);
         }
+        #[cfg(not(cpu_target = "riscv32"))]
         SYS_futex => {
             let h = emulator_modules.get_mut::<SnapshotModule>().unwrap();
             h.access(a0, a3 as usize);
@@ -812,7 +815,8 @@ where
             cpu_target = "arm",
             cpu_target = "i386",
             cpu_target = "mips",
-            cpu_target = "ppc"
+            cpu_target = "ppc",
+            cpu_target = "riscv32"
         )))]
         SYS_newfstatat => {
             if a2 != 0 {
@@ -827,10 +831,12 @@ where
                 h.access(a2, 4096); // stat is not greater than a page
             }
         }
-        SYS_statfs | SYS_fstatfs | SYS_fstat => {
+        #[cfg(not(cpu_target = "riscv32"))]
+        SYS_statfs | SYS_fstat | SYS_fstatfs => {
             let h = emulator_modules.get_mut::<SnapshotModule>().unwrap();
             h.access(a1, 4096); // stat is not greater than a page
         }
+        #[cfg(not(cpu_target = "riscv32"))]
         SYS_getrandom => {
             let h = emulator_modules.get_mut::<SnapshotModule>().unwrap();
             h.access(a0, a1 as usize);
@@ -855,15 +861,15 @@ where
 
             // TODO handle huge pages
 
-            #[cfg(any(cpu_target = "arm", cpu_target = "mips"))]
+            #[cfg(any(cpu_target = "arm", cpu_target = "mips", cpu_target = "riscv32"))]
             if sys_const == SYS_mmap2 {
                 if let Ok(prot) = MmapPerms::try_from(a2 as i32) {
                     let h = emulator_modules.get_mut::<SnapshotModule>().unwrap();
                     h.add_mapped(result, a1 as usize, Some(prot));
                 }
             }
 
-            #[cfg(not(cpu_target = "arm"))]
+            #[cfg(not(any(cpu_target = "arm", cpu_target = "riscv32")))]
             if sys_const == SYS_mmap {
                 if let Ok(prot) = MmapPerms::try_from(a2 as i32) {
                     let h = emulator_modules.get_mut::<SnapshotModule>().unwrap();