Fix up the kernel environment and module data pointers in the bootinfo if
they are present. If we are told where the end of the loaded kernel image is, believe it.
This commit is contained in:
msmith
parent
e3725de368
commit
0a6f31055f
@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)genassym.c 5.11 (Berkeley) 5/10/91
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* $Id: genassym.c,v 1.60 1998/08/18 07:46:58 msmith Exp $
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* $Id: genassym.c,v 1.61 1998/09/24 10:22:21 bde Exp $
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*/
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#include "opt_vm86.h"
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@ -189,6 +189,9 @@ main()
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printf("#define\tBI_SIZE %#x\n", OS(bootinfo, bi_size));
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printf("#define\tBI_SYMTAB %#x\n", OS(bootinfo, bi_symtab));
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printf("#define\tBI_ESYMTAB %#x\n", OS(bootinfo, bi_esymtab));
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printf("#define\tBI_KERNEND %#x\n", OS(bootinfo, bi_kernend));
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printf("#define\tBI_ENVP %#x\n", OS(bootinfo, bi_envp));
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printf("#define\tBI_MODULEP %#x\n", OS(bootinfo, bi_modulep));
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printf("#define\tGD_SIZEOF %u\n", sizeof(struct globaldata));
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printf("#define\tGD_CURPROC %#x\n", OS(globaldata, curproc));
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
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* $Id: locore.s,v 1.112 1998/08/03 21:31:32 msmith Exp $
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* $Id: locore.s,v 1.113 1998/09/28 03:26:22 tegge Exp $
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*
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* originally from: locore.s, by William F. Jolitz
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*
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@ -569,6 +569,22 @@ got_common_bi_size:
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rep
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movsb
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/*
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* Fix up the module data and kernel environment pointers.
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*/
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movl R(_bootinfo+BI_ENVP),%eax
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testl %eax,%eax
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je no_envp
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movl $KERNBASE,%eax
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addl %eax,R(_bootinfo+BI_ENVP)
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no_envp:
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movl R(_bootinfo+BI_MODULEP),%eax
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testl %eax,%eax
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je no_modulep
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movl $KERNBASE,%eax
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addl %eax,R(_bootinfo+BI_MODULEP)
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no_modulep:
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#ifdef NFS_ROOT
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#ifndef BOOTP_NFSV3
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/*
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@ -756,7 +772,7 @@ create_pagetables:
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/* Find end of kernel image (rounded up to a page boundary). */
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movl $R(_end),%esi
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/* include symbols in "kernel image" if they are loaded and useful */
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/* include symbols if loaded and useful */
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#ifdef DDB
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movl R(_bootinfo+BI_ESYMTAB),%edi
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testl %edi,%edi
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@ -768,6 +784,13 @@ create_pagetables:
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over_symalloc:
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#endif
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/* If we are told where the end of the kernel space is, believe it. */
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movl R(_bootinfo+BI_KERNEND),%edi
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testl %edi,%edi
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je no_kernend
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movl %edi,%esi
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no_kernend:
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addl $PAGE_MASK,%esi
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andl $~PAGE_MASK,%esi
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movl %esi,R(_KERNend) /* save end of kernel */
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
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* $Id: locore.s,v 1.112 1998/08/03 21:31:32 msmith Exp $
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* $Id: locore.s,v 1.113 1998/09/28 03:26:22 tegge Exp $
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*
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* originally from: locore.s, by William F. Jolitz
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*
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@ -569,6 +569,22 @@ got_common_bi_size:
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rep
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movsb
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/*
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* Fix up the module data and kernel environment pointers.
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*/
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movl R(_bootinfo+BI_ENVP),%eax
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testl %eax,%eax
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je no_envp
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movl $KERNBASE,%eax
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addl %eax,R(_bootinfo+BI_ENVP)
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no_envp:
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movl R(_bootinfo+BI_MODULEP),%eax
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testl %eax,%eax
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je no_modulep
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movl $KERNBASE,%eax
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addl %eax,R(_bootinfo+BI_MODULEP)
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no_modulep:
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#ifdef NFS_ROOT
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#ifndef BOOTP_NFSV3
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/*
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@ -756,7 +772,7 @@ create_pagetables:
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/* Find end of kernel image (rounded up to a page boundary). */
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movl $R(_end),%esi
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/* include symbols in "kernel image" if they are loaded and useful */
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/* include symbols if loaded and useful */
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#ifdef DDB
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movl R(_bootinfo+BI_ESYMTAB),%edi
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testl %edi,%edi
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@ -768,6 +784,13 @@ create_pagetables:
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over_symalloc:
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#endif
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/* If we are told where the end of the kernel space is, believe it. */
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movl R(_bootinfo+BI_KERNEND),%edi
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testl %edi,%edi
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je no_kernend
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movl %edi,%esi
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no_kernend:
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addl $PAGE_MASK,%esi
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andl $~PAGE_MASK,%esi
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movl %esi,R(_KERNend) /* save end of kernel */
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)genassym.c 5.11 (Berkeley) 5/10/91
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* $Id: genassym.c,v 1.60 1998/08/18 07:46:58 msmith Exp $
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* $Id: genassym.c,v 1.61 1998/09/24 10:22:21 bde Exp $
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*/
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#include "opt_vm86.h"
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@ -189,6 +189,9 @@ main()
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printf("#define\tBI_SIZE %#x\n", OS(bootinfo, bi_size));
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printf("#define\tBI_SYMTAB %#x\n", OS(bootinfo, bi_symtab));
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printf("#define\tBI_ESYMTAB %#x\n", OS(bootinfo, bi_esymtab));
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printf("#define\tBI_KERNEND %#x\n", OS(bootinfo, bi_kernend));
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printf("#define\tBI_ENVP %#x\n", OS(bootinfo, bi_envp));
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printf("#define\tBI_MODULEP %#x\n", OS(bootinfo, bi_modulep));
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printf("#define\tGD_SIZEOF %u\n", sizeof(struct globaldata));
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printf("#define\tGD_CURPROC %#x\n", OS(globaldata, curproc));
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
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* $Id: locore.s,v 1.112 1998/08/03 21:31:32 msmith Exp $
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* $Id: locore.s,v 1.113 1998/09/28 03:26:22 tegge Exp $
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*
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* originally from: locore.s, by William F. Jolitz
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*
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@ -569,6 +569,22 @@ got_common_bi_size:
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rep
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movsb
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/*
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* Fix up the module data and kernel environment pointers.
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*/
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movl R(_bootinfo+BI_ENVP),%eax
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testl %eax,%eax
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je no_envp
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movl $KERNBASE,%eax
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addl %eax,R(_bootinfo+BI_ENVP)
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no_envp:
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movl R(_bootinfo+BI_MODULEP),%eax
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testl %eax,%eax
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je no_modulep
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movl $KERNBASE,%eax
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addl %eax,R(_bootinfo+BI_MODULEP)
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no_modulep:
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#ifdef NFS_ROOT
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#ifndef BOOTP_NFSV3
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/*
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@ -756,7 +772,7 @@ create_pagetables:
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/* Find end of kernel image (rounded up to a page boundary). */
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movl $R(_end),%esi
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/* include symbols in "kernel image" if they are loaded and useful */
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/* include symbols if loaded and useful */
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#ifdef DDB
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movl R(_bootinfo+BI_ESYMTAB),%edi
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testl %edi,%edi
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@ -768,6 +784,13 @@ create_pagetables:
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over_symalloc:
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#endif
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/* If we are told where the end of the kernel space is, believe it. */
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movl R(_bootinfo+BI_KERNEND),%edi
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testl %edi,%edi
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je no_kernend
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movl %edi,%esi
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no_kernend:
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addl $PAGE_MASK,%esi
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andl $~PAGE_MASK,%esi
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movl %esi,R(_KERNend) /* save end of kernel */
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