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#include <stdio.h>
#include <string.h>
#include <dld.h>
extern char* dyn_libraries[];
typedef void (*func_ptr)(void);
static print_undefined()
{
char **symbols;
int i;
symbols = dld_list_undefined_sym();
if (dld_undefined_sym_count != 0) printf("Undefined symbols:\n");
for (i=0; i<dld_undefined_sym_count; i++) {
printf("%s\n",symbols[i]);
free(symbols[i]);
}
free(symbols);
}
void dyn_load(const char * name)
{
char nm_command[80];
char dummy[80];
char symbol[80];
func_ptr addr;
FILE* pipe;
/*
* bad cards with C++ on linux
* so we must collect by ourselves
*/
strcpy(nm_command,"nm -p ");
strcat(nm_command,name);
pipe = popen(nm_command,"r");
while (!feof(pipe)) {
fgets(dummy,80,pipe);
strcpy(symbol,&dummy[12]); /* skip the leading underscore */
if (strncmp(symbol,"_GLOBAL_$I",10) ) continue;
symbol[strlen(symbol) - 1] = '\0';
if (dld_create_reference(symbol)) /* load at least all constructors */
dld_perror("reference");
if (dld_link(name)) /* link it in, if needed */
{
dld_perror("link");
}
for (int i=0; dyn_libraries[i] != 0; i++)
if (dld_link(dyn_libraries[i])) // link in needed libraries
dld_perror(dyn_libraries[i]);
print_undefined();
addr = (func_ptr) dld_get_func(symbol);
if ((addr != 0) && dld_function_executable_p(symbol)) (*addr)();
}
}
void dyn_unload(const char * name)
{
char nm_command[80];
char dummy[80];
char symbol[80];
func_ptr addr;
FILE* pipe;
/*
* bad cards with C++ on linux
* so we must collect by ourselves
*/
dld_unlink_by_file(name,0);
strcpy(nm_command,"nm -p ");
strcat(nm_command,name);
pipe = popen(nm_command,"r");
while (!feof(pipe)) {
fgets(dummy,80,pipe);
strcpy(symbol,&dummy[12]); /* skip the leading underscore */
if (strncmp(symbol,"_GLOBAL_$D",10) ) continue;
symbol[strlen(symbol) - 1] = '\0';
addr = (func_ptr) dld_get_func(symbol);
if (addr != 0) (*addr)();
}
}
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