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Simplify dlloader a bit more.

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This commit is contained in:
Adam Jackson 2008-02-03 22:49:23 +11:00
parent f750ce53ac
commit ba69904148
1 changed files with 16 additions and 27 deletions
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43
hw/xfree86/loader/dlloader.c
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@ -71,15 +71,9 @@
#define DLSYM_PREFIX ""
#endif
typedef struct {
int handle;
void *dlhandle;
int flags;
} DLModuleRec, *DLModulePtr;
/* Hooray, yet another open coded linked list! FIXME */
typedef struct DLModuleList {
DLModulePtr module;
void *module;
struct DLModuleList *next;
} DLModuleList;
@ -88,19 +82,22 @@ static DLModuleList *dlModuleList = NULL;
static void *
DLFindSymbolLocal(pointer module, const char *name)
{
DLModulePtr dlfile = module;
void *p;
char *n;
static const char symPrefix[] = DLSYM_PREFIX;
n = malloc(strlen(symPrefix) + strlen(name) + 1);
if (strlen(symPrefix))
if (strlen(symPrefix)) {
n = malloc(strlen(symPrefix) + strlen(name) + 1);
sprintf(n, "%s%s", symPrefix, name);
else
sprintf(n, "%s", name);
p = dlsym(dlfile->dlhandle, n);
free(n);
} else {
n = name;
}
p = dlsym(module, n);
if (strlen(symPrefix))
free(n);
return p;
}
@ -127,7 +124,7 @@ DLFindSymbol(const char *name)
global_scope = dlopen(NULL, DLOPEN_LAZY | DLOPEN_GLOBAL);
if (global_scope)
return dlsym(global_scope, name);
return DLFindSymbolLocal(global_scope, name);
return NULL;
}
@ -135,23 +132,17 @@ DLFindSymbol(const char *name)
void *
DLLoadModule(loaderPtr modrec, int flags)
{
DLModulePtr dlfile;
void * dlfile;
DLModuleList *l;
int dlopen_flags;
if ((dlfile = calloc(1, sizeof(DLModuleRec))) == NULL) {
ErrorF("Unable to allocate DLModuleRec\n");
return NULL;
}
dlfile->handle = modrec->handle;
if (flags & LD_FLAG_GLOBAL)
dlopen_flags = DLOPEN_LAZY | DLOPEN_GLOBAL;
else
dlopen_flags = DLOPEN_LAZY;
dlfile->dlhandle = dlopen(modrec->name, dlopen_flags);
if (dlfile->dlhandle == NULL) {
dlfile = dlopen(modrec->name, dlopen_flags);
if (dlfile == NULL) {
ErrorF("dlopen: %s\n", dlerror());
free(dlfile);
return NULL;
}
@ -166,7 +157,6 @@ DLLoadModule(loaderPtr modrec, int flags)
void
DLUnloadModule(void *modptr)
{
DLModulePtr dlfile = (DLModulePtr) modptr;
DLModuleList *l, *p;
/* remove it from dlModuleList. */
@ -185,6 +175,5 @@ DLUnloadModule(void *modptr)
p = l;
}
}
dlclose(dlfile->dlhandle);
free(modptr);
dlclose(modptr);
}