Update README

README.md

@@ -115,6 +115,8 @@ If successfully, it will generate the binary files in `target/release`/{`sha2-ru
 > [!NOTE]
 > You can run the guest program without generating a proof by setting the environmental variable `EXECUTE_ONLY` to "true".https://github.com/zkMIPS/zkm/issues/152
 
+> You can set the `ZKM_SKIP_PROGRAM_BUILD` environment variable to `true` to skip building the guest program when use `zkm_build::build_program`.
+
 ### 3. Generate groth16 proof and verifier contract
 
 > [!NOTE]

guest-program/README.md

@@ -60,6 +60,8 @@ cargo build --target=mips-unknown-linux-musl --release
 
 The compiled mips ELF is in the zkm-project-template/guest-program/{sha2-rust,mem-alloc-vec,revme}/target/mips-unknown-linux-musl/release/ .
 
+You can also integrate `zkm_build::build_program` into the compilation process of the host program.
+
 ## Remarks
 
 If the guest program need outputing some messages , it must use the runtime::commit(). Then, the messages can be catched in the host program: [`fn print_guest_execution_output() or print_guest_execution_output_struct()`](../sdk/src/lib.rs)

host-program/run-proving.sh

@@ -12,7 +12,7 @@ export LD_LIBRARY_PATH=$BASEDIR/../sdk/src/local/libsnark:$LD_LIBRARY_PATH  ##Mo
 export RUST_LOG=info
 export SEG_SIZE=262144
 export ARGS="711e9609339e92b03ddc0a211827dba421f38f9ed8b9d806e1ffdd8c15ffa03d world!"
-export ELF_PATH=${BASEDIR}/../guest-program/$program/target/mips-unknown-linux-musl/release/$program
+export ELF_PATH=${BASEDIR}/../guest-program/$program/target/elf-compilation/mips-unknown-linux-musl/release/$program
 export JSON_PATH=${BASEDIR}/test-vectors/test.json
 export PROOF_RESULTS_PATH=${BASEDIR}/../contracts
 export EXECUTE_ONLY=false
@@ -29,8 +29,8 @@ if [[ "$program" =~ .*go$ ]];then
     cd $BASEDIR/../guest-program/$program
     GOOS=linux GOARCH=mips GOMIPS=softfloat go build -o $program
     export ELF_PATH=${BASEDIR}/../guest-program/$program/$program
+    cd -
 fi
-cd -
 
 if [ "$program" == "sha2-rust" ];then
     export SEG_SIZE=65536