init asm test

Author: hanwen.chang

11.cpp

@@ -0,0 +1,45 @@
+#include <vector>
+#include <iostream>
+#include <fstream>
+#include <stdio.h>
+#include <stdlib.h>
+#include <cmath>
+#include <time.h>
+#include <cstdint>
+#include <cstring>
+#include <dlfcn.h>
+#include <x86intrin.h>
+
+
+int main(){
+	char *error_str;
+	void *handle;
+	handle = dlopen ("./11.so", RTLD_LAZY);
+    if (!handle) {
+        fputs (dlerror(), stderr);
+        exit(1);
+    }
+
+    void (*mm)(long,long,long*);
+    mm =(void (*)(long,long,long*)) dlsym(handle, "_Z8sumstorellPl");
+    if ((error_str = dlerror()) != NULL)  {
+        fputs(error_str, stderr);
+        exit(1);
+    }
+
+    long*a;
+    a=(long *)malloc(1*sizeof(long));
+    printf("===========asm==========\n");
+    mm(3,5,a);
+    printf("===========result %ld==========\n",*a);
+
+    return 0;
+}
+
+/*
+void sumstore(long x, long y,
+long *dest) {
+long t = x + y;
+*dest = t;
+}
+*/

22.s

@@ -0,0 +1,48 @@
+	.file	"22.cpp"
+	.text
+	.globl	_Z8sumstorellPl
+	.type	_Z8sumstorellPl, @function
+_Z8sumstorellPl:
+.LFB0:
+	.cfi_startproc
+	endbr64
+	pushq	%rbp
+	.cfi_def_cfa_offset 16
+	.cfi_offset 6, -16
+	movq	%rsp, %rbp
+	.cfi_def_cfa_register 6
+	movq	%rdi, -24(%rbp)
+	movq	%rsi, -32(%rbp)
+	movq	%rdx, -40(%rbp)
+	movq	-24(%rbp), %rdx
+	movq	-32(%rbp), %rax
+	addq	%rdx, %rax
+	movq	%rax, -8(%rbp)
+	movq	-40(%rbp), %rax
+	movq	-8(%rbp), %rdx
+	movq	%rdx, (%rax)
+	nop
+	popq	%rbp
+	.cfi_def_cfa 7, 8
+	ret
+	.cfi_endproc
+.LFE0:
+	.size	_Z8sumstorellPl, .-_Z8sumstorellPl
+	.ident	"GCC: (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0"
+	.section	.note.GNU-stack,"",@progbits
+	.section	.note.gnu.property,"a"
+	.align 8
+	.long	 1f - 0f
+	.long	 4f - 1f
+	.long	 5
+0:
+	.string	 "GNU"
+1:
+	.align 8
+	.long	 0xc0000002
+	.long	 3f - 2f
+2:
+	.long	 0x3
+3:
+	.align 8
+4:

asm.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+gcc -shared -o 11.so 22.s
+icx 11.cpp -lstdc++   -o test -std=c++17