8c246a9dc2
Until now dlsym was used to lookup external symbols. Now you can register your own function to be called when an undefined symbol is used.
110 lines
2.7 KiB
C++
110 lines
2.7 KiB
C++
/*
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* RuntimeTest for ACC compiler.
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*
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*/
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#include <ctype.h>
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#include <dlfcn.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if defined(__arm__)
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#include <unistd.h>
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#endif
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#include <acc/acc.h>
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typedef void (*ScriptPtr)();
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// This is a separate function so it can easily be set by breakpoint in gdb.
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void run(ScriptPtr scriptFn) {
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scriptFn();
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}
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// Private API for development:
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extern "C"
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void accDisassemble(ACCscript* script);
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void op_int(int a) {
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printf("op_int(%d)\n", a);
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}
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void op_float12(float a, float b, float c, float d,
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float e, float f, float g, float h,
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float i, float j, float k, float l) {
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printf("op_float12(%g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g, %g)\n",
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a, b, c, d, e, f, g, h, i, j, k, l);
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}
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const char* text = "void op_int(int a);\n"
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"void op_float12(float a, float b, float c, float d,\n"
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" float e, float f, float g, float h,\n"
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" float i, float j, float k, float l);\n"
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"void script() {\n"
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" op_int(123);\n"
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" op_float12(1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0);\n"
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"}\n";
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ACCvoid* symbolLookup(ACCvoid* pContext, const ACCchar* name) {
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if (strcmp("op_int", name) == 0) {
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return (ACCvoid*) op_int;
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}
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if (strcmp("op_float12", name) == 0) {
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return (ACCvoid*) op_float12;
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}
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return (ACCvoid*) dlsym(RTLD_DEFAULT, name);
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}
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int main(int argc, char** argv) {
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ACCscript* script = accCreateScript();
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accRegisterSymbolCallback(script, symbolLookup, NULL);
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const ACCchar* scriptSource[] = {text};
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accScriptSource(script, 1, scriptSource, NULL);
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accCompileScript(script);
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int result = accGetError(script);
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ScriptPtr scriptPointer = 0;
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if (result != 0) {
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char buf[1024];
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accGetScriptInfoLog(script, sizeof(buf), NULL, buf);
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fprintf(stderr, "%s", buf);
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goto exit;
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}
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{
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ACCsizei numPragmaStrings;
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accGetPragmas(script, &numPragmaStrings, 0, NULL);
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if (numPragmaStrings) {
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char** strings = new char*[numPragmaStrings];
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accGetPragmas(script, NULL, numPragmaStrings, strings);
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for(ACCsizei i = 0; i < numPragmaStrings; i += 2) {
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fprintf(stderr, "#pragma %s(%s)\n", strings[i], strings[i+1]);
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}
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delete[] strings;
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}
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}
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accGetScriptLabel(script, "script", (ACCvoid**) & scriptPointer);
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result = accGetError(script);
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if (result != ACC_NO_ERROR) {
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fprintf(stderr, "Could not find script: %d\n", result);
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} else {
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fprintf(stderr, "Executing script:\n");
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run(scriptPointer);
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}
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exit:
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accDeleteScript(script);
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return result;
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}
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