diff options
Diffstat (limited to 'unix/tclLoadDyld.c')
| -rw-r--r-- | unix/tclLoadDyld.c | 32 |
1 files changed, 9 insertions, 23 deletions
diff --git a/unix/tclLoadDyld.c b/unix/tclLoadDyld.c index 81f59be..332c6c1 100644 --- a/unix/tclLoadDyld.c +++ b/unix/tclLoadDyld.c @@ -12,7 +12,7 @@ * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclLoadDyld.c,v 1.23 2006/03/16 09:15:43 das Exp $ + * RCS: @(#) $Id: tclLoadDyld.c,v 1.24 2006/07/20 06:18:38 das Exp $ */ #include "tclInt.h" @@ -34,11 +34,7 @@ typedef struct Tcl_DyldLoadHandle { } Tcl_DyldLoadHandle; #ifdef TCL_LOAD_FROM_MEMORY -typedef struct ThreadSpecificData { - int haveLoadMemory; -} ThreadSpecificData; - -static Tcl_ThreadDataKey dataKey; +MODULE_SCOPE long tclMacOSXDarwinRelease; #endif /* @@ -389,23 +385,13 @@ TclpLoadMemoryGetBuffer( Tcl_Interp *interp, /* Used for error reporting. */ int size) /* Size of desired buffer. */ { - ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); void *buffer = NULL; - if (!tsdPtr->haveLoadMemory) { - /* - * NSCreateObjectFileImageFromMemory is available but always fails - * prior to Darwin 7. - */ - - struct utsname name; - - if (!uname(&name)) { - long release = strtol(name.release, NULL, 10); - tsdPtr->haveLoadMemory = (release >= 7) ? 1 : -1; - } - } - if (tsdPtr->haveLoadMemory > 0) { + /* + * NSCreateObjectFileImageFromMemory is available but always fails + * prior to Darwin 7. + */ + if (tclMacOSXDarwinRelease >= 7) { /* * We must allocate the buffer using vm_allocate, because * NSCreateObjectFileImageFromMemory will dispose of it using @@ -478,14 +464,14 @@ TclpLoadMemory( #define mh_size sizeof(struct mach_header_64) #endif - if (codeSize >= sizeof(struct fat_header) + if ((size_t) codeSize >= sizeof(struct fat_header) && fh->magic == OSSwapHostToBigInt32(FAT_MAGIC)) { /* * Fat binary, try to find mach_header for our architecture */ uint32_t fh_nfat_arch = OSSwapBigToHostInt32(fh->nfat_arch); - if (codeSize >= sizeof(struct fat_header) + + if ((size_t) codeSize >= sizeof(struct fat_header) + fh_nfat_arch * sizeof(struct fat_arch)) { void *fatarchs = buffer + sizeof(struct fat_header); CONST NXArchInfo *arch = NXGetLocalArchInfo(); |