diff options
Diffstat (limited to 'xorg-server/hw/xfree86/loader/loader.c')
| -rw-r--r-- | xorg-server/hw/xfree86/loader/loader.c | 145 |
1 files changed, 40 insertions, 105 deletions
diff --git a/xorg-server/hw/xfree86/loader/loader.c b/xorg-server/hw/xfree86/loader/loader.c index fc0db2886..6a4c08916 100644 --- a/xorg-server/hw/xfree86/loader/loader.c +++ b/xorg-server/hw/xfree86/loader/loader.c @@ -74,41 +74,50 @@ #include "xf86.h" #include "xf86Priv.h" #include "compiler.h" -#include "sym.h" -/* - * handles are used to identify files that are loaded. Even archives - * are counted as a single file. - */ +extern void *xorg_symbols[]; + #define MAX_HANDLE 256 -#define HANDLE_FREE 0 -#define HANDLE_USED 1 -static char freeHandles[MAX_HANDLE]; static int refCount[MAX_HANDLE]; -/* - * modules are used to identify compilation units (ie object modules). - * Archives contain multiple modules, each of which is treated seperately. - */ static int moduleseq = 0; /* Prototypes for static functions. */ -static loaderPtr _LoaderListPush(void); -static loaderPtr _LoaderListPop(int); +static loaderPtr listHead = NULL; -void -LoaderInit(void) +static loaderPtr +_LoaderListPush(void) +{ + loaderPtr item = calloc(1, sizeof(struct _loader)); + + item->next = listHead; + listHead = item; + + return item; +} + +static loaderPtr +_LoaderListPop(int handle) { - const char *osname = NULL; + loaderPtr item = listHead; + loaderPtr *bptr = &listHead; /* pointer to previous node */ - char *ld_bind_now = getenv("LD_BIND_NOW"); - if (ld_bind_now && *ld_bind_now) { - xf86Msg(X_ERROR, "LD_BIND_NOW is set, dlloader will NOT work!\n"); + while (item) { + if (item->handle == handle) { + *bptr = item->next; /* remove this from the list */ + return item; + } + bptr = &(item->next); + item = item->next; } - xf86MsgVerb(X_INFO, 2, "Loader magic: %p\n", (void *) - ((long)dixLookupTab ^ (long)extLookupTab - ^ (long)miLookupTab ^ (long)xfree86LookupTab)); + return 0; +} + +void +LoaderInit(void) +{ + xf86MsgVerb(X_INFO, 2, "Loader magic: %p\n", (void *)xorg_symbols); xf86MsgVerb(X_INFO, 2, "Module ABI versions:\n"); xf86ErrorFVerb(2, "\t%s: %d.%d\n", ABI_CLASS_ANSIC, GET_ABI_MAJOR(LoaderVersionInfo.ansicVersion), @@ -123,10 +132,6 @@ LoaderInit(void) GET_ABI_MAJOR(LoaderVersionInfo.extensionVersion), GET_ABI_MINOR(LoaderVersionInfo.extensionVersion)); - LoaderGetOS(&osname, NULL, NULL, NULL); - if (osname) - xf86MsgVerb(X_INFO, 2, "Loader running on %s\n", osname); - #if defined(__UNIXWARE__) && !defined(__GNUC__) /* For UnixWare we need to load the C Runtime libraries which are * normally auto-linked by the compiler. Otherwise we are bound to @@ -149,58 +154,6 @@ LoaderInit(void) #endif } -static loaderPtr listHead = (loaderPtr) 0; - -static loaderPtr -_LoaderListPush() -{ - loaderPtr item = calloc(1, sizeof(struct _loader)); - - item->next = listHead; - listHead = item; - - return item; -} - -static loaderPtr -_LoaderListPop(int handle) -{ - loaderPtr item = listHead; - loaderPtr *bptr = &listHead; /* pointer to previous node */ - - while (item) { - if (item->handle == handle) { - *bptr = item->next; /* remove this from the list */ - return item; - } - bptr = &(item->next); - item = item->next; - } - - return 0; -} - -/* These four are just ABI stubs */ -_X_EXPORT void -LoaderRefSymbols(const char *sym0, ...) -{ -} - -_X_EXPORT void -LoaderRefSymLists(const char **list0, ...) -{ -} - -_X_EXPORT void -LoaderReqSymLists(const char **list0, ...) -{ -} - -_X_EXPORT void -LoaderReqSymbols(const char *sym0, ...) -{ -} - /* Public Interface to the loader. */ int @@ -214,12 +167,7 @@ LoaderOpen(const char *module, const char *cname, int handle, ErrorF("LoaderOpen(%s)\n", module); #endif - /* - * Check to see if the module is already loaded. - * Only if we are loading it into an existing namespace. - * If it is to be loaded into a new namespace, don't check. - * Note: We only have one namespace. - */ + /* Is the module already loaded? */ if (handle >= 0) { tmp = listHead; while (tmp) { @@ -249,7 +197,7 @@ LoaderOpen(const char *module, const char *cname, int handle, * Find a free handle. */ new_handle = 1; - while (new_handle < MAX_HANDLE && freeHandles[new_handle]) + while (new_handle < MAX_HANDLE && refCount[new_handle]) new_handle++; if (new_handle == MAX_HANDLE) { @@ -261,7 +209,6 @@ LoaderOpen(const char *module, const char *cname, int handle, return -1; } - freeHandles[new_handle] = HANDLE_USED; refCount[new_handle] = 1; tmp = _LoaderListPush(); @@ -275,7 +222,7 @@ LoaderOpen(const char *module, const char *cname, int handle, if ((tmp->private = DLLoadModule(tmp, flags)) == NULL) { xf86Msg(X_ERROR, "Failed to load %s\n", module); _LoaderListPop(new_handle); - freeHandles[new_handle] = HANDLE_FREE; + refCount[new_handle] = 0; if (errmaj) *errmaj = LDR_NOLOAD; if (errmin) @@ -292,26 +239,19 @@ LoaderHandleOpen(int handle) if (handle < 0 || handle >= MAX_HANDLE) return -1; - if (freeHandles[handle] != HANDLE_USED) + if (!refCount[handle]) return -1; refCount[handle]++; return handle; } -_X_EXPORT void * +void * LoaderSymbol(const char *sym) { return (DLFindSymbol(sym)); } -/* more stub */ -_X_EXPORT int -LoaderCheckUnresolved(int delay_flag) -{ - return 0; -} - int LoaderUnload(int handle) { @@ -331,18 +271,13 @@ LoaderUnload(int handle) */ while ((tmp = _LoaderListPop(handle)) != NULL) { - if (strchr(tmp->name, ':') == NULL) { - /* It is not a member of an archive */ - xf86Msg(X_INFO, "Unloading %s\n", tmp->name); - } + xf86Msg(X_INFO, "Unloading %s\n", tmp->name); DLUnloadModule(tmp->private); free(tmp->name); free(tmp->cname); free(tmp); } - freeHandles[handle] = HANDLE_FREE; - return 0; } @@ -354,13 +289,13 @@ LoaderSetOptions(unsigned long opts) LoaderOptions |= opts; } -_X_EXPORT Bool +Bool LoaderShouldIgnoreABI(void) { return (LoaderOptions & LDR_OPT_ABI_MISMATCH_NONFATAL) != 0; } -_X_EXPORT int +int LoaderGetABIVersion(const char *abiclass) { struct { |