fix(raiko): make kzg work on SP1

Cargo.toml

@@ -115,6 +115,7 @@ prometheus = { version = "0.13.3", features = ["process"] }
 c-kzg = "1.0.0"
 c-kzg-taiko = { git = "https://github.com/smtmfft/c-kzg-4844", branch = "for-alpha7", default-features = false, features = [
     "preload-kzg-settings",
+    "no-threads",
 ] }
 sha3 = { version = "0.10", default-features = false }
 sha2 = "0.10.8"

host/src/raiko.rs

@@ -269,7 +269,9 @@ mod tests {
     async fn test_prove_block_taiko_a7() {
         let proof_type = get_proof_type_from_env();
         let network = Network::TaikoA7;
-        let block_number = 105987;
+        // Give the CI an simpler block to test because it doesn't have enough memory.
+        // Unfortunately that also means that kzg is not getting fully verified by CI.
+        let block_number = if is_ci() { 105987 } else { 101368 };
         let chain_spec = get_network_spec(network);
         let proof_request = ProofRequest {
             block_number,
@@ -290,7 +292,7 @@ mod tests {
     async fn test_prove_block_ethereum() {
         let proof_type = get_proof_type_from_env();
         // Skip test on SP1 for now because it's too slow on CI
-        if proof_type != ProofType::Sp1 {
+        if !(is_ci() && proof_type == ProofType::Sp1) {
             let network = Network::Ethereum;
             let block_number = 19707175;
             let chain_spec = get_network_spec(network);

provers/risc0/builder/src/main.rs

@@ -34,7 +34,12 @@ impl Pipeline for Risc0Pipeline {
                 "panic=abort",
             ])
             .cc_compiler("gcc".into())
-            .c_flags(&["/opt/riscv/bin/riscv32-unknown-elf-gcc"])
+            .c_flags(&[
+                "/opt/riscv/bin/riscv32-unknown-elf-gcc",
+                "-march=rv32im",
+                "-mstrict-align",
+                "-falign-functions=2",
+            ])
             .custom_args(&["--ignore-rust-version"]);
         // Cannot use /.rustup/toolchains/risc0/bin/cargo, use regular cargo
         builder.unset_cargo();

provers/sp1/builder/src/main.rs

@@ -37,7 +37,12 @@ impl Pipeline for Sp1Pipeline {
                 "panic=abort",
             ])
             .cc_compiler("gcc".into())
-            .c_flags(&["/opt/riscv/bin/riscv32-unknown-elf-gcc", "-mstrict-align"])
+            .c_flags(&[
+                "/opt/riscv/bin/riscv32-unknown-elf-gcc",
+                "-march=rv32im",
+                "-mstrict-align",
+                "-falign-functions=2",
+            ])
             .custom_args(&["--ignore-rust-version"])
     }