invalid character '(' in mnemonic(GCC编译嵌入汇编代码的C程序)

GCC 编译的时候，提示
[lijiao@localhost DynamicalLink]$ gcc -o loading loading.c
loading.c: Assembler messages:
loading.c:65: Error: invalid character '(' in mnemonic
loading.c:74: Error: invalid character '(' in mnemonic
loading.c:83: Error: invalid character '(' in mnemonic
loading.c:92: Error: invalid character '(' in mnemonic



哪里出错了？？

===========================================================================
#include<stdio.h>
#include<dlfcn.h>

#define SETUP_STACK                          \
i=2;                                         \
while(++i<argc-1)                            \
{                                            \
    switch(argv[i][0])                       \
    {                                        \
        case 'i':                            \
            asm volatile("push %0"           \
            ::"r"(atoi(&argv[i][1])));       \
            esp+=4;                          \
            break;                           \
        case 'd':                            \
            atof(&argv[i][1]);               \
            asm volatile("subl $8,%esp\n"    \
            "fstpl(%esp)");                  \
            esp+=8;                          \
            break;                           \
       case 's':                             \
            asm volatile("push %0"           \
            ::"r"(&argv[i][1]));             \
            esp+=4;                          \
            break;                           \
      default:                               \
            printf("error argument type");   \
            goto exit_runso;                 \
    }                                        \
}                                          

#define RESTORE_STACK                        \
        asm volatile("add %0,%%esp"          \
        ::"r"(esp))

int main(int argc,char *argv[])
{
    void * handle;
    char * error;
    int i;
    int esp=0;
    void * func;

    /*open dynamical linking library and load */
    handle=dlopen(argv[1],RTLD_NOW); 
    if(handle==0)
    {
        printf("Can't find library:%s\n",argv[1]);
        return -1;
    } 
    /*find symbol ,return the value*/
    func=dlsym(handle,argv[2]);
    if((error=dlerror())!=NULL)
    {
        printf("Find symbol %s error:%s\n",argv[2],error);
        goto exit_runso;
    }
    
    switch(argv[argc-1][0])
    {
        case 'i':
        {
            int (*func_int)()=func;
            SETUP_STACK;
            int ret=func_int();
            RESTORE_STACK;
            printf("ret=%d\n",ret);
            break;
        }
        case 'd':
        {
            double (*func_double)()=func;
            SETUP_STACK;
            double ret=func_double();
            RESTORE_STACK;
            printf("ret=%f\n",ret);
            break;
        }
        case 's':
        {
            char * (*func_str)()=func;
            SETUP_STACK;
            char * ret=func_str();
            RESTORE_STACK;
            printf("ret=%s\n",ret);
            break;
        }
        case 'v':
        {
            void (*func_void)()=func;
            SETUP_STACK;
            func_void();
            RESTORE_STACK;
            printf("ret=void");
            break;
        }
    }
    exit_runso:
        dlcolose(handle);
}

2 个解决方案

#1

  /* fstpl后加个空格 */
  asm volatile("subl $8,%esp\n" \
  "fstpl (%esp)"); \

/*
dlcolose (handle);
*/
/* 拼写错误改为 */
dlcolose (handle);

#2

Thank you !