Change GENERIC, GENERIC.MP, GENERIC.MPACPI, GENERIC_LAPTOP, INSTALL,
INSTALL.MP, INSTALL_LAPTOP, and DISKLESS kernels so that they are smaller and faster by removing support for actual i386 CPUs (which lack write protection in supervisor mode, which requires a costly workaround) and math coprocessor emulation. Coprocessor emulation is retained in the LAPTOP kernels, but not in the others. Where it is known that a configuration cannot be run with particular CPUs (i486 in *MP kernels) remove that support as well. Compile all kernels with appropriate architecture and tuning flags (reduces size, makes things faster). Those requiring support for machines with i386 CPU or lacking coprocessor can use the *SMALL or *TINY kernels.
This commit is contained in:
parent
c04f54e8f4
commit
bd4d319d4b
16
doc/CHANGES
16
doc/CHANGES
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@ -1,4 +1,4 @@
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LIST OF CHANGES FROM LAST RELEASE: <$Revision: 1.744 $>
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LIST OF CHANGES FROM LAST RELEASE: <$Revision: 1.745 $>
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[Note: This file does not mention every change made to the NetBSD source tree.
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[Note: This file does not mention every change made to the NetBSD source tree.
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@ -142,3 +142,17 @@ Changes from NetBSD 4.0 to NetBSD 5.0:
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puc(4): Add support for Perle PCI-RAS 4 port multimodem [manu 20061101]
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puc(4): Add support for Perle PCI-RAS 4 port multimodem [manu 20061101]
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rum(4): Added driver for Ralink 2501/2601 USB 802.11a/b/g
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rum(4): Added driver for Ralink 2501/2601 USB 802.11a/b/g
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devices from OpenBSD. [joerg 20061101]
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devices from OpenBSD. [joerg 20061101]
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i386: Change GENERIC, GENERIC.MP, GENERIC.MPACPI, GENERIC_LAPTOP,
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INSTALL, INSTALL.MP, INSTALL_LAPTOP, and DISKLESS kernels
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so that they are smaller and faster by removing support
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for actual i386 CPUs (which lack write protection in
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supervisor mode, which requires a costly workaround) and
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math coprocessor emulation. Coprocessor emulation is
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retained in the LAPTOP kernels, but not in the others.
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Where it is known that a configuration cannot be run
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with particular CPUs (i486 in *MP kernels) remove that
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support as well. Compile all kernels with appropriate
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architecture and tuning flags (reduces size, makes things
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faster). Those requiring support for machines with i386
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CPU or lacking coprocessor can use the *SMALL or *TINY
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kernels. [tls 20061101]
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@ -1,4 +1,4 @@
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# $NetBSD: DISKLESS,v 1.114 2006/08/26 20:26:45 christos Exp $
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# $NetBSD: DISKLESS,v 1.115 2006/11/01 19:33:41 tls Exp $
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#
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#
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# DISKLESS -- Generic machine setup for diskless boot.
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# DISKLESS -- Generic machine setup for diskless boot.
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# This kernel can be loaded from a bootable floppy (i.e. kernel-copy)
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# This kernel can be loaded from a bootable floppy (i.e. kernel-copy)
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@ -9,7 +9,7 @@ include "arch/i386/conf/std.i386"
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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options I386_CPU # CPU classes; at least one is REQUIRED
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#options I386_CPU # CPU classes; at least one is REQUIRED
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options I486_CPU
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options I486_CPU
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options I586_CPU
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options I586_CPU
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options I686_CPU
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options I686_CPU
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@ -17,6 +17,9 @@ options MATH_EMULATE # floating point emulation
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#options VM86 # virtual 8086 emulation
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#options VM86 # virtual 8086 emulation
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options USER_LDT # user-settable LDT; used by WINE
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options USER_LDT # user-settable LDT; used by WINE
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makeoptions COPTS="-march=i486 -mtune=pentiumpro" # Assume at least 486,
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# tune for more modern
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# The following options override the memory sizes passed in from the boot
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# The following options override the memory sizes passed in from the boot
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# block. Use them *only* if the boot block is unable to determine the correct
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# block. Use them *only* if the boot block is unable to determine the correct
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# values. Note that the BIOS may *correctly* report less that 640k of base
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# values. Note that the BIOS may *correctly* report less that 640k of base
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@ -1,4 +1,4 @@
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# $NetBSD: GENERIC,v 1.793 2006/10/31 22:21:16 joerg Exp $
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# $NetBSD: GENERIC,v 1.794 2006/11/01 19:33:41 tls Exp $
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#
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#
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# GENERIC machine description file
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# GENERIC machine description file
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#
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#
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@ -22,18 +22,21 @@ include "arch/i386/conf/std.i386"
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options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#ident "GENERIC-$Revision: 1.793 $"
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#ident "GENERIC-$Revision: 1.794 $"
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maxusers 32 # estimated number of users
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maxusers 32 # estimated number of users
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# CPU support. At least one is REQUIRED.
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# CPU support. At least one is REQUIRED.
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options I386_CPU
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#options I386_CPU
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options I486_CPU
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options I486_CPU
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options I586_CPU
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options I586_CPU
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options I686_CPU
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options I686_CPU
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makeoptions COPTS="-march=i486 -mtune=pentiumpro" # Assume at least 486,
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# tune for more modern
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# CPU-related options.
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# CPU-related options.
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options MATH_EMULATE # floating point emulation
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#options MATH_EMULATE # floating point emulation
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options VM86 # virtual 8086 emulation
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options VM86 # virtual 8086 emulation
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options USER_LDT # user-settable LDT; used by WINE
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options USER_LDT # user-settable LDT; used by WINE
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# insert delay no-ops in interrupts; recommended on very old machines
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# insert delay no-ops in interrupts; recommended on very old machines
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@ -1,4 +1,4 @@
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# $NetBSD: GENERIC.MPACPI,v 1.59 2006/07/04 00:30:22 christos Exp $
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# $NetBSD: GENERIC.MPACPI,v 1.60 2006/11/01 19:33:41 tls Exp $
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#
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#
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# GENERIC.MP -- Generic, plus enable Multiprocessor support.
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# GENERIC.MP -- Generic, plus enable Multiprocessor support.
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#
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#
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@ -47,8 +47,10 @@ wss* at acpi? # NeoMagic 256AV in wss mode
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#sony* at acpi? # Sony Miscellaneous Controller
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#sony* at acpi? # Sony Miscellaneous Controller
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# Remove support for old cpus
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# Remove support for old cpus
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no options I386_CPU, I486_CPU, I586_CPU
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no options I486_CPU, I586_CPU
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no options MATH_EMULATE
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#no options MATH_EMULATE
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no makeoptions COPTS
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makeoptions COPTS="-march=pentiumpro -mtune=pentiumpro"
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# It is doubtful that an EISA system supports ACPI
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# It is doubtful that an EISA system supports ACPI
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no options EISAVERBOSE
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no options EISAVERBOSE
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@ -1,4 +1,4 @@
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# $NetBSD: GENERIC_LAPTOP,v 1.211 2006/10/31 22:21:17 joerg Exp $
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# $NetBSD: GENERIC_LAPTOP,v 1.212 2006/11/01 19:33:41 tls Exp $
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# From: NetBSD: GENERIC,v 1.414 2001/07/30 19:59:05 ad Exp
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# From: NetBSD: GENERIC,v 1.414 2001/07/30 19:59:05 ad Exp
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#
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#
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# GENERIC_LAPTOP -- GENERIC with cardbus and some USB devices enabled
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# GENERIC_LAPTOP -- GENERIC with cardbus and some USB devices enabled
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options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#ident "GENERIC-$Revision: 1.211 $"
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#ident "GENERIC-$Revision: 1.212 $"
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maxusers 32 # estimated number of users
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maxusers 32 # estimated number of users
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# CPU support. At least one is REQUIRED.
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# CPU support. At least one is REQUIRED.
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options I386_CPU
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#options I386_CPU
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options I486_CPU
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options I486_CPU
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options I586_CPU
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options I586_CPU
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options I686_CPU
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options I686_CPU
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makeoptions COPTS="-march=i486 -mtune=pentiumpro" # Assume at least 486,
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# tune for more modern
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# CPU-related options.
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# CPU-related options.
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options MATH_EMULATE # floating point emulation
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options MATH_EMULATE # floating point emulation
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options VM86 # virtual 8086 emulation
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options VM86 # virtual 8086 emulation
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@ -1,4 +1,4 @@
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# $NetBSD: INSTALL,v 1.291 2006/10/21 14:10:33 bouyer Exp $
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# $NetBSD: INSTALL,v 1.292 2006/11/01 19:33:41 tls Exp $
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#
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#
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# INSTALL - Installation kernel.
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# INSTALL - Installation kernel.
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#
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#
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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makeoptions COPTS="-Os" # Optimise for space. Implies -O2
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makeoptions COPTS="-Os -march=i486 -mtune=i486" # i486 is densest code
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# Enable the hooks used for initializing the root memory-disk.
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# Enable the hooks used for initializing the root memory-disk.
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options MEMORY_DISK_HOOKS
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options MEMORY_DISK_HOOKS
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maxusers 2 # estimated number of users
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maxusers 2 # estimated number of users
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# CPU support. At least one is REQUIRED.
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# CPU support. At least one is REQUIRED.
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options I386_CPU
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#options I386_CPU
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options I486_CPU
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options I486_CPU
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options I586_CPU
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options I586_CPU
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options I686_CPU
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options I686_CPU
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# CPU-related options.
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# CPU-related options.
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options MATH_EMULATE # floating point emulation
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#options MATH_EMULATE # floating point emulation
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#options VM86 # virtual 8086 emulation
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#options VM86 # virtual 8086 emulation
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#options USER_LDT # user-settable LDT; used by WINE
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#options USER_LDT # user-settable LDT; used by WINE
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@ -1,4 +1,4 @@
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# $NetBSD: INSTALL.MP,v 1.6 2006/07/04 00:30:22 christos Exp $
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# $NetBSD: INSTALL.MP,v 1.7 2006/11/01 19:33:41 tls Exp $
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#
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#
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# INSTALL.MP -- Install, plus enable Multiprocessor support.
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# INSTALL.MP -- Install, plus enable Multiprocessor support.
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# Mostly to let people test-boot MP systems.
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# Mostly to let people test-boot MP systems.
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options DEBUG
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options DEBUG
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options MPBIOS # configure CPUs and APICs using MPBIOS
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options MPBIOS # configure CPUs and APICs using MPBIOS
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no options I486_CPU
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no makeoptions COPTS
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makeoptions COPTS="-Os -march=pentium -mtune=i486"
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ioapic* at mainbus? apid ?
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ioapic* at mainbus? apid ?
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# $NetBSD: INSTALL_LAPTOP,v 1.104 2006/10/21 14:10:33 bouyer Exp $
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# $NetBSD: INSTALL_LAPTOP,v 1.105 2006/11/01 19:33:41 tls Exp $
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#
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#
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# INSTALL - Installation kernel.
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# INSTALL - Installation kernel.
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#
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#
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options MEMORY_DISK_SERVER=0 # no userspace memory disk support
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options MEMORY_DISK_SERVER=0 # no userspace memory disk support
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options MEMORY_DISK_ROOT_SIZE=10000 # size of memory disk, in blocks
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options MEMORY_DISK_ROOT_SIZE=10000 # size of memory disk, in blocks
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makeoptions COPTS="-Os" # generates smaller code than -O2, -O1
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makeoptions COPTS="-Os -march=i486 -mtune=i486" # i486 is densest code
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maxusers 32 # estimated number of users
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maxusers 32 # estimated number of users
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# CPU support. At least one is REQUIRED.
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# CPU support. At least one is REQUIRED.
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options I386_CPU
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#options I386_CPU
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options I486_CPU
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options I486_CPU
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options I586_CPU
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options I586_CPU
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options I686_CPU
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options I686_CPU
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@ -1,4 +1,4 @@
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# $NetBSD: INSTALL_XEN2_DOMU,v 1.3 2006/10/02 03:28:30 chs Exp $
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# $NetBSD: INSTALL_XEN2_DOMU,v 1.4 2006/11/01 19:33:41 tls Exp $
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include "arch/xen/conf/std.xen"
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include "arch/xen/conf/std.xen"
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@ -6,7 +6,7 @@ options XEN
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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makeoptions COPTS="-Os" # Optimise for space. Implies -O2
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makeoptions COPTS="-Os -march=pentiumpro -mtune=i486"
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# Enable the hooks used for initializing the root memory-disk.
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# Enable the hooks used for initializing the root memory-disk.
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options MEMORY_DISK_HOOKS
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options MEMORY_DISK_HOOKS
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@ -1,4 +1,4 @@
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# $NetBSD: INSTALL_XEN3_DOMU,v 1.6 2006/10/17 19:57:24 bouyer Exp $
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# $NetBSD: INSTALL_XEN3_DOMU,v 1.7 2006/11/01 19:33:41 tls Exp $
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include "arch/xen/conf/std.xen"
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include "arch/xen/conf/std.xen"
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@ -9,7 +9,7 @@ options MAXPHYS=32768
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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makeoptions COPTS="-Os" # Optimise for space. Implies -O2
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makeoptions COPTS="-Os -march=pentiumpro -mtune=i486"
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# Enable the hooks used for initializing the root memory-disk.
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# Enable the hooks used for initializing the root memory-disk.
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options MEMORY_DISK_HOOKS
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options MEMORY_DISK_HOOKS
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@ -1,4 +1,4 @@
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# $NetBSD: NET4501,v 1.50 2006/08/26 20:26:45 christos Exp $
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# $NetBSD: NET4501,v 1.51 2006/11/01 19:33:41 tls Exp $
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#
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#
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# NET4501 -- kernel configuration for a Soekris Engineering net4501
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# NET4501 -- kernel configuration for a Soekris Engineering net4501
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# single-board computer.
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# single-board computer.
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#ident "NET4501-$Revision: 1.50 $"
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#ident "NET4501-$Revision: 1.51 $"
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maxusers 32 # estimated number of users
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maxusers 32 # estimated number of users
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@ -23,7 +23,7 @@ options I486_CPU
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# AMD Elan SC520's timer runs at a different frequency
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# AMD Elan SC520's timer runs at a different frequency
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options TIMER_FREQ=1189200
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options TIMER_FREQ=1189200
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||||||
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makeoptions COPTS="-Os -mtune=i486"
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makeoptions COPTS="-Os -march=i486 -mtune=i486"
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# CPU-related options.
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# CPU-related options.
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#options MATH_EMULATE # floating point emulation
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#options MATH_EMULATE # floating point emulation
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@ -1,4 +1,4 @@
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# $NetBSD: PARALLELS,v 1.2 2006/10/29 09:34:35 minskim Exp $
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# $NetBSD: PARALLELS,v 1.3 2006/11/01 19:33:41 tls Exp $
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#
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#
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# PARALLELS machine description file
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# PARALLELS machine description file
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#
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#
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||||||
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@ -14,9 +14,10 @@ maxusers 32
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||||||
|
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||||||
# CPU support.
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# CPU support.
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options I686_CPU
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options I686_CPU
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||||||
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makeoptions COPTS="-march=pentiumpro -mtune=pentiumpro"
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||||||
|
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||||||
# CPU-related options.
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# CPU-related options.
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||||||
options MATH_EMULATE # floating point emulation
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#options MATH_EMULATE # floating point emulation
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||||||
options VM86 # virtual 8086 emulation
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options VM86 # virtual 8086 emulation
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||||||
options USER_LDT # user-settable LDT; used by WINE
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options USER_LDT # user-settable LDT; used by WINE
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||||||
|
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@ -1,4 +1,4 @@
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||||||
# $NetBSD: QEMU,v 1.3 2006/10/25 13:56:15 jmmv Exp $
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# $NetBSD: QEMU,v 1.4 2006/11/01 19:33:41 tls Exp $
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#
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#
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||||||
# QEMU machine description file
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# QEMU machine description file
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#
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#
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@ -11,7 +11,7 @@ include "arch/i386/conf/std.i386"
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options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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options INCLUDE_CONFIG_FILE # embed config file in kernel binary
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#ident "QEMU-$Revision: 1.3 $"
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#ident "QEMU-$Revision: 1.4 $"
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maxusers 32 # estimated number of users
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maxusers 32 # estimated number of users
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||||||
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||||||
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@ -20,6 +20,7 @@ maxusers 32 # estimated number of users
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||||||
#options I486_CPU
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#options I486_CPU
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#options I586_CPU
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#options I586_CPU
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||||||
options I686_CPU
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options I686_CPU
|
||||||
|
makeoptions COPTS="-march=pentiumpro -mtune=pentiumpro"
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||||||
|
|
||||||
# CPU-related options.
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# CPU-related options.
|
||||||
#options MATH_EMULATE # floating point emulation
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#options MATH_EMULATE # floating point emulation
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||||||
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@ -1,4 +1,4 @@
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||||||
# $NetBSD: SWINGER,v 1.84 2006/08/26 20:26:45 christos Exp $
|
# $NetBSD: SWINGER,v 1.85 2006/11/01 19:33:41 tls Exp $
|
||||||
# from NetBSD: GENERIC,v 1.325 2000/04/14 14:53:32 augustss Exp
|
# from NetBSD: GENERIC,v 1.325 2000/04/14 14:53:32 augustss Exp
|
||||||
#
|
#
|
||||||
# SWINGER -- thorpej's Abit BP6+dual Celeron
|
# SWINGER -- thorpej's Abit BP6+dual Celeron
|
||||||
|
@ -8,7 +8,7 @@ include "arch/i386/conf/std.i386"
|
||||||
|
|
||||||
#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
|
#options INCLUDE_CONFIG_FILE # embed config file in kernel binary
|
||||||
|
|
||||||
#ident "SWINGER-$Revision: 1.84 $"
|
#ident "SWINGER-$Revision: 1.85 $"
|
||||||
|
|
||||||
maxusers 64 # estimated number of users
|
maxusers 64 # estimated number of users
|
||||||
|
|
||||||
|
@ -17,6 +17,7 @@ maxusers 64 # estimated number of users
|
||||||
#options I486_CPU
|
#options I486_CPU
|
||||||
#options I586_CPU
|
#options I586_CPU
|
||||||
options I686_CPU
|
options I686_CPU
|
||||||
|
makeoptions COPTS="-march=pentiumpro -mtune=pentiumpro"
|
||||||
|
|
||||||
# CPU-related options.
|
# CPU-related options.
|
||||||
#options MATH_EMULATE # floating point emulation
|
#options MATH_EMULATE # floating point emulation
|
||||||
|
|
|
@ -1,4 +1,4 @@
|
||||||
# $NetBSD: VIRTUALPC,v 1.46 2006/08/26 20:26:45 christos Exp $
|
# $NetBSD: VIRTUALPC,v 1.47 2006/11/01 19:33:41 tls Exp $
|
||||||
#
|
#
|
||||||
# VIRTUALPC machine description file --
|
# VIRTUALPC machine description file --
|
||||||
#
|
#
|
||||||
|
@ -11,7 +11,7 @@ include "arch/i386/conf/std.i386"
|
||||||
|
|
||||||
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
|
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
|
||||||
|
|
||||||
#ident "VIRTUALPC-$Revision: 1.46 $"
|
#ident "VIRTUALPC-$Revision: 1.47 $"
|
||||||
|
|
||||||
maxusers 32 # estimated number of users
|
maxusers 32 # estimated number of users
|
||||||
|
|
||||||
|
@ -20,6 +20,7 @@ maxusers 32 # estimated number of users
|
||||||
#options I486_CPU
|
#options I486_CPU
|
||||||
options I586_CPU
|
options I586_CPU
|
||||||
options I686_CPU
|
options I686_CPU
|
||||||
|
makeoptions COPTS="-march=pentium -mtune=pentiumpro"
|
||||||
|
|
||||||
# CPU-related options.
|
# CPU-related options.
|
||||||
#options MATH_EMULATE # floating point emulation
|
#options MATH_EMULATE # floating point emulation
|
||||||
|
|
Loading…
Reference in New Issue