[RISCV] Disable Atomics on all Non-A RISC-V targets

diff --git a/src/librustc_target/spec/riscv32i_unknown_none_elf.rs b/src/librustc_target/spec/riscv32i_unknown_none_elf.rs
index 314778408f7e5d8513ad6d741e7e1268cdd0f747..0db34196bdd6193923f6c635af41ffb34698bb11 100644 (file)
--- a/src/librustc_target/spec/riscv32i_unknown_none_elf.rs
+++ b/src/librustc_target/spec/riscv32i_unknown_none_elf.rs
@@ -17,7 +17,7 @@ pub fn target() -> TargetResult {
         options: TargetOptions {
             linker: Some("rust-lld".to_string()),
             cpu: "generic-rv32".to_string(),
-            max_atomic_width: None,
+            max_atomic_width: Some(0),
             atomic_cas: false,
             features: String::new(),
             executables: true,

diff --git a/src/librustc_target/spec/riscv32imc_unknown_none_elf.rs b/src/librustc_target/spec/riscv32imc_unknown_none_elf.rs
index 647d33e3ffeeed91ea49ab8ca96f63b37f979e7d..621af5a1eca75bb5fd4f26b435714d3354a2c256 100644 (file)
--- a/src/librustc_target/spec/riscv32imc_unknown_none_elf.rs
+++ b/src/librustc_target/spec/riscv32imc_unknown_none_elf.rs
@@ -17,8 +17,7 @@ pub fn target() -> TargetResult {
         options: TargetOptions {
             linker: Some("rust-lld".to_string()),
             cpu: "generic-rv32".to_string(),
-            // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86005
-            max_atomic_width: None, //Some(32),
+            max_atomic_width: Some(0),
             atomic_cas: false,
             features: "+m,+c".to_string(),
             executables: true,