xnu-1699.32.7.tar.gz

[apple/xnu.git] / bsd / kern / mach_fat.c

diff --git a/bsd/kern/mach_fat.c b/bsd/kern/mach_fat.c
index a9418aa8f981bf6e8b63351c6bf0e2a341deea57..9811047d7500d8b9c5edc6ef159e5ae8a72dee5f 100644 (file)
--- a/bsd/kern/mach_fat.c
+++ b/bsd/kern/mach_fat.c
@@ -1,5 +1,5 @@
 /*
 /*

- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 1991-2005 Apple Computer, Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 


@@ -25,15 +25,6 @@
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
  * 
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */

-/* Copyright (c) 1991 NeXT Computer, Inc.  All rights reserved.
- *
- *     File:   kern/mach_fat.c
- *     Author: Peter King
- *
- *     Fat file support routines.
- *
- */
-

 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/uio.h>
 #include <sys/param.h>
 #include <sys/types.h>
 #include <sys/uio.h>


@@ -44,13 +35,9 @@
 #include <kern/cpu_number.h>
 #include <mach-o/fat.h>
 #include <kern/mach_loader.h>
 #include <kern/cpu_number.h>
 #include <mach-o/fat.h>
 #include <kern/mach_loader.h>

-#include <architecture/byte_order.h>
-
-/* XXX should be in common header */
-extern int grade_binary(cpu_type_t exectype, cpu_subtype_t execsubtype);
-
-#define CPU_TYPE_NATIVE                (cpu_type())
-#define CPU_TYPE_CLASSIC       CPU_TYPE_POWERPC
+#include <kern/mach_fat.h>
+#include <libkern/OSByteOrder.h>
+#include <machine/exec.h>

 
 /**********************************************************************
  * Routine:    fatfile_getarch2()
 
 /**********************************************************************
  * Routine:    fatfile_getarch2()


@@ -90,7 +77,9 @@ fatfile_getarch2(
        int                     grade;
        int                     best_grade;
        int                     nfat_arch;
        int                     grade;
        int                     best_grade;
        int                     nfat_arch;

-       off_t           end_of_archs;
+       off_t                   end_of_archs;
+       cpu_type_t              testtype;
+       cpu_type_t              testsubtype;

        struct fat_header       *header;
 #if 0
        off_t filesize;
        struct fat_header       *header;
 #if 0
        off_t filesize;


@@ -106,10 +95,10 @@ fatfile_getarch2(
         *      Map portion that must be accessible directly into
         *      kernel's map.
         */
         *      Map portion that must be accessible directly into
         *      kernel's map.
         */

-       nfat_arch = NXSwapBigLongToHost(header->nfat_arch);
+       nfat_arch = OSSwapBigToHostInt32(header->nfat_arch);

 
 

-       end_of_archs = (off_t)nfat_arch * sizeof(struct fat_arch) + 
-               sizeof(struct fat_header);
+       end_of_archs = (off_t)nfat_arch * sizeof(struct fat_arch) +
+                       sizeof(struct fat_header);

 #if 0
        filesize = ubc_getsize(vp);
        if (end_of_archs > (int)filesize) {
 #if 0
        filesize = ubc_getsize(vp);
        if (end_of_archs > (int)filesize) {


@@ -122,36 +111,52 @@ fatfile_getarch2(
         * only PAGE_SIZE bytes
         */
        if (end_of_archs > PAGE_SIZE ||
         * only PAGE_SIZE bytes
         */
        if (end_of_archs > PAGE_SIZE ||

-               end_of_archs < (sizeof(struct fat_header)+sizeof(struct fat_arch)))
+           end_of_archs < (off_t)(sizeof(struct fat_header)+sizeof(struct fat_arch)))

                return(LOAD_BADMACHO);
                return(LOAD_BADMACHO);

+

        /*
         *      Round size of fat_arch structures up to page boundry.
         */
        /*
         *      Round size of fat_arch structures up to page boundry.
         */

-       size = round_page_32(end_of_archs);
+       size = round_page(end_of_archs);

        if (size == 0)
                return(LOAD_BADMACHO);
 
        /*
        if (size == 0)
                return(LOAD_BADMACHO);
 
        /*

-        * Scan the fat_arch's looking for the best one.
+        * Ignore LIB64 flag so that binary slices with the flag set
+        * don't choke in grade_binary.

         */
         */

+       mask_bits |= CPU_SUBTYPE_LIB64;
+
+       /*
+        * Scan the fat_arch's looking for the best one.  */

        addr = data_ptr;
        best_arch = NULL;
        best_grade = 0;
        arch = (struct fat_arch *) (addr + sizeof(struct fat_header));
        for (; nfat_arch-- > 0; arch++) {
 
        addr = data_ptr;
        best_arch = NULL;
        best_grade = 0;
        arch = (struct fat_arch *) (addr + sizeof(struct fat_header));
        for (; nfat_arch-- > 0; arch++) {
 

+               /* 
+                *      Collect flags from both cputype and cpusubtype 
+                */
+               testtype = OSSwapBigToHostInt32(arch->cputype) |
+                               (OSSwapBigToHostInt32(arch->cpusubtype) & 
+                                       CPU_SUBTYPE_MASK);
+               testsubtype = OSSwapBigToHostInt32(arch->cpusubtype) 
+                       & ~CPU_SUBTYPE_MASK;
+

                /*
                 *      Check to see if right cpu type.
                 */
                /*
                 *      Check to see if right cpu type.
                 */

-               if(((cpu_type_t)NXSwapBigIntToHost(arch->cputype) & ~mask_bits) != req_cpu_type)
+               if((testtype & ~mask_bits) != req_cpu_type) {

                        continue;
                        continue;

+               }

 
                /*
 
                /*

-                *      Get the grade of the cpu subtype.
+                *      Get the grade of the cpu subtype (without feature flags)

                 */
                 */

-               grade = grade_binary(
-                           NXSwapBigIntToHost(arch->cputype),
-                           NXSwapBigIntToHost(arch->cpusubtype));
+               grade = grade_binary(
+                               (testtype & ~CPU_SUBTYPE_LIB64), 
+                               testsubtype);

 
                /*
                 *      Remember it if it's the best we've seen.
 
                /*
                 *      Remember it if it's the best we've seen.


@@ -169,15 +174,15 @@ fatfile_getarch2(
                lret = LOAD_BADARCH;
        } else {
                archret->cputype        =
                lret = LOAD_BADARCH;
        } else {
                archret->cputype        =

-                           NXSwapBigIntToHost(best_arch->cputype);
+                           OSSwapBigToHostInt32(best_arch->cputype);

                archret->cpusubtype     =
                archret->cpusubtype     =

-                           NXSwapBigIntToHost(best_arch->cpusubtype);
+                           OSSwapBigToHostInt32(best_arch->cpusubtype);

                archret->offset         =
                archret->offset         =

-                           NXSwapBigLongToHost(best_arch->offset);
+                           OSSwapBigToHostInt32(best_arch->offset);

                archret->size           =
                archret->size           =

-                           NXSwapBigLongToHost(best_arch->size);
+                           OSSwapBigToHostInt32(best_arch->size);

                archret->align          =
                archret->align          =

-                           NXSwapBigLongToHost(best_arch->align);
+                           OSSwapBigToHostInt32(best_arch->align);

 
                lret = LOAD_SUCCESS;
        }
 
                lret = LOAD_SUCCESS;
        }


@@ -188,8 +193,6 @@ fatfile_getarch2(
        return(lret);
 }
 
        return(lret);
 }
 

-extern char classichandler[];
-

 load_return_t
 fatfile_getarch_affinity(
                struct vnode            *vp,
 load_return_t
 fatfile_getarch_affinity(
                struct vnode            *vp,


@@ -198,24 +201,25 @@ fatfile_getarch_affinity(
                int                             affinity)
 {
                load_return_t lret;
                int                             affinity)
 {
                load_return_t lret;

-               int handler = (classichandler[0] != 0);
+               int handler = (exec_archhandler_ppc.path[0] != 0);

                cpu_type_t primary_type, fallback_type;
 
                if (handler && affinity) {
                cpu_type_t primary_type, fallback_type;
 
                if (handler && affinity) {

-                               primary_type = CPU_TYPE_CLASSIC;
-                               fallback_type = CPU_TYPE_NATIVE;
+                               primary_type = CPU_TYPE_POWERPC;
+                               fallback_type = cpu_type();

                } else {
                } else {

-                               primary_type = CPU_TYPE_NATIVE;
-                               fallback_type = CPU_TYPE_CLASSIC;
+                               primary_type = cpu_type();
+                               fallback_type = CPU_TYPE_POWERPC;

                }
                /*
                }
                /*

-                * Ignore the architectural bits when determining if an image
+                * Ignore all architectural bits when determining if an image

                 * in a fat file should be skipped or graded.
                 */
                 * in a fat file should be skipped or graded.
                 */

-               lret = fatfile_getarch2(vp, data_ptr, primary_type, CPU_ARCH_MASK, archret);
+               lret = fatfile_getarch2(vp, data_ptr, primary_type, 
+                               CPU_ARCH_MASK, archret);

                if ((lret != 0) && handler) {
                        lret = fatfile_getarch2(vp, data_ptr, fallback_type,
                if ((lret != 0) && handler) {
                        lret = fatfile_getarch2(vp, data_ptr, fallback_type,

-                                               0, archret);
+                                               CPU_SUBTYPE_LIB64, archret);

                }
                return lret;
 }
                }
                return lret;
 }


@@ -240,7 +244,8 @@ fatfile_getarch(
        vm_offset_t     data_ptr,
        struct fat_arch         *archret)
 {
        vm_offset_t     data_ptr,
        struct fat_arch         *archret)
 {

-       return fatfile_getarch2(vp, data_ptr, CPU_TYPE_NATIVE, 0, archret);
+       return fatfile_getarch2(vp, data_ptr, cpu_type(), 
+                       CPU_SUBTYPE_LIB64, archret);

 }
 
 /**********************************************************************
 }
 
 /**********************************************************************


@@ -265,6 +270,7 @@ fatfile_getarch_with_bits(
        vm_offset_t     data_ptr,
        struct fat_arch         *archret)
 {
        vm_offset_t     data_ptr,
        struct fat_arch         *archret)
 {

-       return fatfile_getarch2(vp, data_ptr, archbits | CPU_TYPE_NATIVE, 0, archret);
+       return fatfile_getarch2(vp, data_ptr, archbits | cpu_type(), 
+                       CPU_SUBTYPE_LIB64, archret);

 }
 
 }