Commit 709d9192 authored by Kunshan Wang's avatar Kunshan Wang

test IR builder api in C

parent 5c17e4da
......@@ -239,14 +239,19 @@ struct MuVM {
// Set handlers
void (*set_trap_handler )(MuVM *mvm, MuTrapHandler trap_handler, MuCPtr userdata);
// Proprietary API: let the micro VM execute
// Proprietary API: Let the micro VM execute.
void (*execute)(MuVM *mvm);
// Proprietary API: Get the pointer to the internal error number allocate in
// the micro VM. It is set to non-zero whenevern an exception is thrown when
// the client calls through this C API. This gives the client a chance to
// terminate because JNI is not able to propagate JVM exceptions to C.
int* (*get_mu_error_ptr)(MuVM *mvm);
// A local context. It can only be used by one thread at a time. It holds many
// states which are typically held by a Mu thread, such as object references,
// local heap allocation pool, and an object-pinning set. It also holds many Munew_
// local heap allocation pool, and an object-pinning set. It also holds many Mu
// values and expose them to the client as opaque handles (MuValue and its
// subtypes).
struct MuCtx {
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <unistd.h> // write
......@@ -8,7 +9,6 @@
#include <muapi.h>
const char *hw_string = "Hello world!\n";
const char *hw2_string = "Goodbye world!\n";
const char *gc_conf =
......@@ -18,12 +18,120 @@ const char *gc_conf =
int main() {
int *muerrno;
#define MUCHECKERR() do { if(*muerrno) { \
fprintf(stderr, "Line %d: Error thrown in Mu. Stop. **muerrno: %d\n", \
__LINE__, *muerrno); \
exit(1); \
}} while(0)
int main(int argc, char** argv) {
MuVM *mvm = mu_refimpl2_new_ex(gc_conf);
//MuCtx *ctx = mvm->new_context(mvm);
muerrno = mvm->get_mu_error_ptr(mvm);
MuCtx *ctx = mvm->new_context(mvm);
MuBundleNode b = ctx->new_bundle(ctx);
// primitive types
MuTypeNode i1 = ctx->new_type_int(ctx, b, 1);
MuTypeNode i8 = ctx->new_type_int(ctx, b, 8);
MuTypeNode i32 = ctx->new_type_int(ctx, b, 32);
MuTypeNode i64 = ctx->new_type_int(ctx, b, 64);
MuTypeNode pi8 = ctx->new_type_uptr(ctx, b);
MuTypeNode ppi8 = ctx->new_type_uptr(ctx, b);
ctx->set_type_uptr(ctx, pi8, i8);
ctx->set_type_uptr(ctx, ppi8, pi8);
MuID i32_id = ctx->get_id(ctx, b, i32);
MuID ppi8_id = ctx->get_id(ctx, b, ppi8);
// signature for the main function
MuTypeNode main_paramtys[] = { i32, ppi8 };
MuFuncSigNode main_sig = ctx->new_funcsig(ctx, b, main_paramtys, 2,
NULL, 0);
// signature and ufuncptr for the write function
MuTypeNode hvoid = ctx->new_type_void(ctx, b);
MuTypeNode pvoid = ctx->new_type_uptr(ctx, b);
ctx->set_type_uptr(ctx, pvoid, hvoid);
MuTypeNode write_paramtys[] = { i32, pvoid, i64 };
MuTypeNode write_rettys[] = { i64 };
MuFuncSigNode write_sig = ctx->new_funcsig(ctx, b, write_paramtys, 3,
write_rettys, 1);
MuTypeNode write_fp = ctx->new_type_ufuncptr(ctx, b);
ctx->set_type_ufuncptr(ctx, write_fp, write_sig);
MuConstNode const_fp_write = ctx->new_const_int(ctx, b, write_fp, (uintptr_t)write);
// constant for "Hello world!\n"
MuConstNode const_ptr_hw_string = ctx->new_const_int(ctx, b, pi8, (uintptr_t)hw_string);
// the exit state of the Mu function. It cannot directly return to C.
MuGlobalNode exit_status = ctx->new_global_cell(ctx, b, i32);
// the main function
MuFuncNode main_func = ctx->new_func(ctx, b, main_sig);
MuID main_func_id = ctx->get_id(ctx, b, main_func);
MuFuncVerNode main_fv = ctx->new_func_ver(ctx, b, main_func);
MuBBNode entry = ctx->new_bb(ctx, main_fv);
MuNorParamNode hargc = ctx->new_nor_param(ctx, entry, i32);
MuNorParamNode hargv = ctx->new_nor_param(ctx, entry, ppi8);
// args to write. fd=1, sz=size of hw_string
MuConstNode const_i32_1 = ctx->new_const_int(ctx, b, i32, 1L);
MuConstNode const_i64_hwsz = ctx->new_const_int(ctx, b, i64, strlen(hw_string)+1);
// convert the string pointer to void*
MuInstNode ptrcast = ctx->new_conv(ctx, entry, MU_CONV_PTRCAST,
ppi8, pvoid, const_ptr_hw_string);
MuInstResNode ptrcast_r = ctx->new_inst_res(ctx, ptrcast);
// call the write function
MuVarNode write_args[] = { const_i32_1, ptrcast_r, const_i64_hwsz };
MuInstNode write = ctx->new_ccall(ctx, entry, MU_CC_DEFAULT,
write_fp, write_sig, const_fp_write, write_args, 3);
MuInstResNode write_r0 = ctx->new_inst_res(ctx, write);
// return 0
MuConstNode const_i32_0 = ctx->new_const_int(ctx, b, i32, 0L);
MuInstNode store = ctx->new_store(ctx, entry, 0, MU_ORD_NOT_ATOMIC, i32,
exit_status, const_i32_0);
// thread_exit
MuInstNode threadexit = ctx->new_comminst(ctx, entry, MU_CI_UVM_THREAD_EXIT,
NULL, 0, NULL, 0, NULL, 0, NULL, 0);
ctx->load_bundle_from_node(ctx, b);
MuIntValue v_argc = ctx->handle_from_sint32(ctx, i32_id, argc);
MuUPtrValue v_argv = ctx->handle_from_ptr(ctx, ppi8_id, (MuCPtr)argv);
MuValue v_main_args[] = {v_argc, v_argv};
MuFuncRefValue v_main_func = ctx->handle_from_func(ctx, main_func_id);
MuStackRefValue v_main_stack = ctx->new_stack(ctx, v_main_func);
MuThreadRefValue v_main_thread = ctx->new_thread_nor(ctx, v_main_stack,
NULL, v_main_args, 2);
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