From 99014ec24983d25042476aa248dc8bede9eab961 Mon Sep 17 00:00:00 2001
From: zzhengxiang <2646125453@qq.com>
Date: Fri, 20 Jun 2025 10:04:31 +0800
Subject: [PATCH] =?UTF-8?q?support=20jit=20on=20hiperf=20=E6=94=AF?=
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Signed-off-by: zzhengxiang <2646125453@qq.com>
---
 src/js_native_api_v8.cpp | 48 ++++++++++++++++++++++++++++++++++++++++
 src/jsvm_dfx.h           | 27 ++++++++++++++++++++++
 2 files changed, 75 insertions(+)

diff --git a/src/js_native_api_v8.cpp b/src/js_native_api_v8.cpp
index 70c5422..d7a235f 100644
--- a/src/js_native_api_v8.cpp
+++ b/src/js_native_api_v8.cpp
@@ -6000,3 +6000,51 @@ JSVM_Status OH_JSVM_PromiseRegisterHandler(JSVM_Env env,
 
     return ClearLastError(env);
 }
+
+__attribute__((visibility("default"))) int step_jsvm(void *ctx, ReadMemFunc readMem, JsvmStepParam *frame)
+{
+    uintptr_t preFp = 0;
+    readMem(ctx, *(frame->fp), &preFp);
+    uintptr_t prePc = 0;
+    readMem(ctx, *(frame->fp) + sizeof(void*), &prePc);
+
+    *(frame->fp) = preFp;
+    *(frame->pc) = prePc;
+    *(frame->sp) = preFp;
+    return 0;
+}
+
+
+__attribute__((visibility("default"))) int create_jsvm_extractor(uintptr_t* extractorPptr, uint32_t pid)
+{
+    uintptr_t extractorPtr = 0;
+    if (v8::V8::CreateJSVMExtractor(extractorPtr, pid) == 0) {
+        *extractorPptr = extractorPtr;
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+__attribute_((visibility)("default")) int destory_jsvm_extractor(uintptr_t extractorPtr)
+{
+    v8::V8::DeleteJSVMExtractor(extractorPtr);
+    return 0;
+}
+
+__attribute_((visibility)("default")) int jsvm_parse_js_frame_info(uintptr_t pc,
+                                                                   uintptr_t jsvmExtractorPtr,
+                                                                   JsvmFunction* jsvmFunction)
+{
+    std::string codeName;
+    int ret = v8::V8::GetJSVMCodeName(jsvmExtractorPtr, pc, codeName);
+    if (ret == 0) {
+        size_t nameSize = codeName.size() + 1;
+        if (strcpy_s(jsvmFunction->functionName, nameSize, codeName.c_str()) != EOK) {
+            return -1;
+        }
+        return 0;
+    } else {
+        return -1;
+    }
+}
diff --git a/src/jsvm_dfx.h b/src/jsvm_dfx.h
index 7aca9b4..f0c139e 100644
--- a/src/jsvm_dfx.h
+++ b/src/jsvm_dfx.h
@@ -122,6 +122,33 @@ private:
 
 } // namespace jsvm
 
+constexpr uint16_t FUNCTIONNAME_MAX = 1024;
+
+struct JsvmStepParam {
+    uintptr_t *fp;
+    uintptr_t *sp;
+    uintptr_t *pc;
+    bool *isJsvmFrame;
+
+    JsvmStepParam(uintptr_t *fp, uintptr_t *sp, uintptr_t *pc, bool *isJsvmFrame)
+        : fp(fp), sp(sp), pc(pc), isJsvmFrame(isJsvmFrame) {}
+}
+struct JsvmFunction {
+    char functionName[FUNCTIONNAME_MAX];
+}
+
+typedef bool (*ReadMemFunc)(void *ctx, uintptr_t addr, uintptr_t *val);
+
+extern "C" int step_jsvm(void *ctx, ReadMemFunc readMem, JsvmStepParam *frame);
+
+extern "C" int create_jsvm_extractor(uintptr_t *extractorPptr, uint32_t pid);
+
+extern "C" int destory_jsvm_extractor(uintptr_t extractorPtr);
+
+extern "C" int jsvm_parse_js_frame_info(uintptr_t pc,
+                                        uintptr_t jsvmExtractorPtr,
+                                        JsvmFunction *jsvmFunction);
+
 
 #define UNREACHABLE(...) JSVM_FATAL("Unreachable code reached" __VA_OPT__(": ") __VA_ARGS__)
 
-- 
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