Date: Sun, 06 Oct 1996 10:33:30 +0000 From: Slash <slash@leontief.nw.ru> To: questions@freebsd.org Subject: Kernel compiling troubles. Message-ID: <32578AFA.41C67EA6@leontief.nw.ru>
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This is a multi-part message in MIME format. --------------446B9B3D2781E494167EB0E7 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I have problems while compiling kernel EVEN in GENERIC configuration. Machine description : FreeBSD 2.1.0 , AMD 486/160Mhz, 12Mb RAM. Here by goes detailed compiling log of the place where the problem occurs: # make Warning: imported path contains relative components cpp -DLOCORE -nostdinc -I. -I../.. -I../../sys -I../../../include -DKERNEL -DI386_CPU -DATAPI -DUSER_LDT -DIPFIREWALL -DUCONSOLE -DBOUNCE_BUFFERS -DSCSI_DELAY=15 -DCOMPAT_43 -DPROCFS -DCD9660 -DMSDOSFS -DNFS -DFFS -DINET -DKERNEL -Di386 -DLOAD_ADDRESS=0xF0100000 ../../i386/i386/locore.s | as -o locore.o ../../i386/i386/locore.s: Assembler messages: ../../i386/i386/locore.s:155: Error: Rest of line ignored. First ignored character is `b'. ../../i386/i386/locore.s:155: Error: invalid character '_' in opcode ../../i386/i386/locore.s:567: Error: operands given don't match any known 386 instruction ../../i386/i386/locore.s:568: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:585: Error: operands given don't match any known 386 instruction ../../i386/i386/locore.s:586: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:595: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:597: Error: operands given don't match any known 386 instruction ../../i386/i386/locore.s:617: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:627: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:637: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:642: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:697: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:706: Error: operands given don't match any known 386 instruction ../../i386/i386/locore.s:777: Error: Unimplemented segment type 6 in parse_operand ../../i386/i386/locore.s:796: Error: Rest of line ignored. First ignored character is `s'. ../../i386/i386/locore.s:796: Error: invalid character '_' in opcode *** Error code 1 Stop. This is the second try to execute `make' that's why the compilation starts not from the beginning. Full `sys' component ( kernel sources ) reinstallation didn't helps. GENERIC configuration is the original GENERIC configuration from the FreeBSD 2.1.0 distribution. I've attached my locore.s & my kernel configuration files. My e-mail : slash@leontief.nw.ru --------------446B9B3D2781E494167EB0E7 Content-Type: text/plain; charset=us-ascii; name="locore.s" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="locore.s" /*- * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: @(#)locore.s 7.3 (Berkeley) 5/13/91 * $Id: locore.s,v 1.52.4.2 1995/09/30 13:42:32 davidg Exp $ */ /* * locore.s: FreeBSD machine support for the Intel 386 * originally from: locore.s, by William F. Jolitz * * Substantially rewritten by David Greenman, Rod Grimes, * Bruce Evans, Wolfgang Solfrank, and many others. */ #include "assym.s" /* system definitions */ #include <machine/psl.h> /* processor status longword defs */ #include <machine/pte.h> /* page table entry definitions */ #include <sys/errno.h> /* error return codes */ #include <machine/specialreg.h> /* x86 special registers */ #include <machine/cputypes.h> /* x86 cpu type definitions */ #include <sys/syscall.h> /* system call numbers */ #include <machine/asmacros.h> /* miscellaneous asm macros */ #include <sys/reboot.h> #include "apm.h" /* * XXX * * Note: This version greatly munged to avoid various assembler errors * that may be fixed in newer versions of gas. Perhaps newer versions * will have more pleasant appearance. */ /* * PTmap is recursive pagemap at top of virtual address space. * Within PTmap, the page directory can be found (third indirection). */ .globl _PTmap,_PTD,_PTDpde .set _PTmap,PTDPTDI << PDRSHIFT .set _PTD,_PTmap + (PTDPTDI * NBPG) .set _PTDpde,_PTD + (PTDPTDI * PDESIZE) /* * Sysmap is the base address of the kernel page tables. * It is a bogus interface for kgdb and isn't used by the kernel itself. */ .set _Sysmap,_PTmap + (KPTDI * NBPG) /* * APTmap, APTD is the alternate recursive pagemap. * It's used when modifying another process's page tables. */ .globl _APTmap,_APTD,_APTDpde .set _APTmap,APTDPTDI << PDRSHIFT .set _APTD,_APTmap + (APTDPTDI * NBPG) .set _APTDpde,_PTD + (APTDPTDI * PDESIZE) /* * Access to each processes kernel stack is via a region of * per-process address space (at the beginning), immediatly above * the user process stack. */ .set _kstack,USRSTACK .globl _kstack /* * Globals */ .data .globl tmpstk .space 0x1000 /* space for tmpstk - temporary stack */ tmpstk: /* * Dummy frame at top of tmpstk to help debuggers print a nice stack trace. */ .long tmpstk+8 /* caller's %ebp */ .long _cpu_switch /* caller */ .long 0 /* %ebp == 0 should terminate trace */ .long _mvesp /* in case %ebp == 0 doesn't work ... */ .long 0x11111111, 0x22222222, 0x33333333, 0x44444444, 0x55555555 .globl _boothowto,_bootdev .globl _cpu,_cold,_atdevbase,_cpu_vendor,_cpu_id,_bootinfo .globl _cpu_high, _cpu_feature _cpu: .long 0 /* are we 386, 386sx, or 486 */ _cpu_id: .long 0 /* stepping ID */ _cpu_high: .long 0 /* highest arg to CPUID */ _cpu_feature: .long 0 /* features */ _cpu_vendor: .space 20 /* CPU origin code */ _bootinfo: .space BOOTINFO_SIZE /* bootinfo that we can handle */ _cold: .long 1 /* cold till we are not */ _atdevbase: .long 0 /* location of start of iomem in virtual */ _atdevphys: .long 0 /* location of device mapping ptes (phys) */ _KERNend: .long 0 /* phys addr end of kernel (just after bss) */ .globl _IdlePTD _IdlePTD: .long 0 /* phys addr of kernel PTD */ _KPTphys: .long 0 /* phys addr of kernel page tables */ .globl _proc0paddr _proc0paddr: .long 0 /* address of proc 0 address space */ #ifdef BDE_DEBUGGER .globl _bdb_exists /* flag to indicate BDE debugger is available */ _bdb_exists: .long 0 #endif /* * System Initialization */ .text /* * btext: beginning of text section. * Also the entry point (jumped to directly from the boot blocks). */ NON_GPROF_ENTRY(btext) movw $0x1234,0x472 /* warm boot */ /* Set up a real frame, some day we will be doing returns */ pushl %ebp movl %esp, %ebp /* Don't trust what the BIOS gives for eflags. */ pushl $PSL_KERNEL popfl /* Don't trust what the BIOS gives for %fs and %gs. */ mov %ds, %ax mov %ax, %fs mov %ax, %gs /* * This code is called in different ways depending on what loaded * and started the kernel. This is used to detect how we get the * arguments from the other code and what we do with them. * * Old disk boot blocks: * (*btext)(howto, bootdev, cyloffset, esym); * [return address == 0, and can NOT be returned to] * [cyloffset was not supported by the FreeBSD boot code * and always passed in as 0] * [esym is also known as total in the boot code, and * was never properly supported by the FreeBSD boot code] * * Old diskless netboot code: * (*btext)(0,0,0,0,&nfsdiskless,0,0,0); * [return address != 0, and can NOT be returned to] * If we are being booted by this code it will NOT work, * so we are just going to halt if we find this case. * * New uniform boot code: * (*btext)(howto, bootdev, 0, 0, 0, &bootinfo) * [return address != 0, and can be returned to] * * There may seem to be a lot of wasted arguments in here, but * that is so the newer boot code can still load very old kernels * and old boot code can load new kernels. */ /* * The old style disk boot blocks fake a frame on the stack and * did an lret to get here. The frame on the stack has a return * address of 0. */ cmpl $0,4(%ebp) je 2f /* olddiskboot: */ /* * We have some form of return address, so this is either the * old diskless netboot code, or the new uniform code. That can * be detected by looking at the 5th argument, it if is 0 we * we are being booted by the new unifrom boot code. */ cmpl $0,24(%ebp) je 1f /* newboot: */ /* * Seems we have been loaded by the old diskless boot code, we * don't stand a chance of running as the diskless structure * changed considerably between the two, so just halt. */ hlt /* * We have been loaded by the new uniform boot code. * Lets check the bootinfo version, and if we do not understand * it we return to the loader with a status of 1 to indicate this error */ 1: /* newboot: */ movl 28(%ebp),%ebx /* &bootinfo.version */ movl BI_VERSION(%ebx),%eax cmpl $1,%eax /* We only understand version 1 */ je 1f movl $1,%eax /* Return status */ leave ret 1: /* * If we have a kernelname copy it in */ movl BI_KERNELNAME(%ebx),%esi cmpl $0,%esi je 2f /* No kernelname */ movl $MAXPATHLEN,%ecx /* Brute force!!! */ lea _kernelname-KERNBASE,%edi cmpb $'/',(%esi) /* Make sure it starts with a slash */ je 1f movb $'/',(%edi) incl %edi decl %ecx 1: cld rep movsb 2: /* * Determine the size of the boot loader's copy of the bootinfo * struct. This is impossible to do properly because old versions * of the struct don't contain a size field and there are 2 old * versions with the same version number. */ movl $BI_ENDCOMMON,%ecx /* prepare for sizeless version */ testl $RB_BOOTINFO,8(%ebp) /* bi_size (and bootinfo) valid? */ je got_bi_size /* no, sizeless version */ movl BI_SIZE(%ebx),%ecx got_bi_size: /* * Copy the common part of the bootinfo struct */ movl %ebx,%esi movl $_bootinfo-KERNBASE,%edi cmpl $BOOTINFO_SIZE,%ecx jbe got_common_bi_size movl $BOOTINFO_SIZE,%ecx got_common_bi_size: cld rep movsb #ifdef NFS /* * If we have a nfs_diskless structure copy it in */ movl BI_NFS_DISKLESS(%ebx),%esi cmpl $0,%esi je 2f lea _nfs_diskless-KERNBASE,%edi movl $NFSDISKLESS_SIZE,%ecx cld rep movsb lea _nfs_diskless_valid-KERNBASE,%edi movl $1,(%edi) #endif /* * The old style disk boot. * (*btext)(howto, bootdev, cyloffset, esym); * Note that the newer boot code just falls into here to pick * up howto and bootdev, cyloffset and esym are no longer used */ 2: /* olddiskboot: */ movl 8(%ebp),%eax movl %eax,_boothowto-KERNBASE movl 12(%ebp),%eax movl %eax,_bootdev-KERNBASE #if NAPM > 0 /* call APM BIOS driver setup (i386/apm/apm_setup.s) */ call _apm_setup #endif /* NAPM */ /* Find out our CPU type. */ /* Try to toggle alignment check flag; does not exist on 386. */ pushfl popl %eax movl %eax,%ecx orl $PSL_AC,%eax pushl %eax popfl pushfl popl %eax xorl %ecx,%eax andl $PSL_AC,%eax pushl %ecx popfl testl %eax,%eax jnz 1f movl $CPU_386,_cpu-KERNBASE jmp 2f 1: /* Try to toggle identification flag; does not exist on early 486s. */ pushfl popl %eax movl %eax,%ecx xorl $PSL_ID,%eax pushl %eax popfl pushfl popl %eax xorl %ecx,%eax andl $PSL_ID,%eax pushl %ecx popfl testl %eax,%eax jnz 1f movl $CPU_486,_cpu-KERNBASE /* check for Cyrix 486DLC -- based on check routine */ /* documented in "Cx486SLC/e SMM Programmer's Guide" */ xorw %dx,%dx cmpw %dx,%dx # set flags to known state pushfw popw %cx # store flags in ecx movw $0xffff,%ax movw $0x0004,%bx divw %bx pushfw popw %ax andw $0x08d5,%ax # mask off important bits andw $0x08d5,%cx cmpw %ax,%cx jnz 2f # if flags changed, Intel chip movl $CPU_486DLC,_cpu-KERNBASE # set CPU value for Cyrix movl $0x69727943,_cpu_vendor-KERNBASE # store vendor string movw $0x0078,_cpu_vendor-KERNBASE+4 #ifndef CYRIX_CACHE_WORKS /* Disable caching of the ISA hole only. */ invd movb $CCR0,%al # Configuration Register index (CCR0) outb %al,$0x22 inb $0x23,%al orb $(CCR0_NC1|CCR0_BARB),%al movb %al,%ah movb $CCR0,%al outb %al,$0x22 movb %ah,%al outb %al,$0x23 invd #else /* CYRIX_CACHE_WORKS */ /* Set cache parameters */ invd # Start with guaranteed clean cache movb $CCR0,%al # Configuration Register index (CCR0) outb %al,$0x22 inb $0x23,%al andb $~CCR0_NC0,%al #ifndef CYRIX_CACHE_REALLY_WORKS orb $(CCR0_NC1|CCR0_BARB),%al #else orb $CCR0_NC1,%al #endif movb %al,%ah movb $CCR0,%al outb %al,$0x22 movb %ah,%al outb %al,$0x23 /* clear non-cacheable region 1 */ movb $(NCR1+2),%al outb %al,$0x22 movb $NCR_SIZE_0K,%al outb %al,$0x23 /* clear non-cacheable region 2 */ movb $(NCR2+2),%al outb %al,$0x22 movb $NCR_SIZE_0K,%al outb %al,$0x23 /* clear non-cacheable region 3 */ movb $(NCR3+2),%al outb %al,$0x22 movb $NCR_SIZE_0K,%al outb %al,$0x23 /* clear non-cacheable region 4 */ movb $(NCR4+2),%al outb %al,$0x22 movb $NCR_SIZE_0K,%al outb %al,$0x23 /* enable caching in CR0 */ movl %cr0,%eax andl $~(CR0_CD|CR0_NW),%eax movl %eax,%cr0 invd #endif /* CYRIX_CACHE_WORKS */ jmp 2f 1: /* Use the `cpuid' instruction. */ xorl %eax,%eax .byte 0x0f,0xa2 # cpuid 0 movl %eax,_cpu_high-KERNBASE # highest capability movl %ebx,_cpu_vendor-KERNBASE # store vendor string movl %edx,_cpu_vendor+4-KERNBASE movl %ecx,_cpu_vendor+8-KERNBASE movb $0,_cpu_vendor+12-KERNBASE movl $1,%eax .byte 0x0f,0xa2 # cpuid 1 movl %eax,_cpu_id-KERNBASE # store cpu_id movl %edx,_cpu_feature-KERNBASE # store cpu_feature rorl $8,%eax # extract family type andl $15,%eax cmpl $5,%eax jae 1f /* less than Pentium; must be 486 */ movl $CPU_486,_cpu-KERNBASE jmp 2f 1: movl $CPU_586,_cpu-KERNBASE 2: /* * Finished with old stack; load new %esp now instead of later so * we can trace this code without having to worry about the trace * trap clobbering the memory test or the zeroing of the bss+bootstrap * page tables. * * XXX - wdboot clears the bss after testing that this is safe. * This is too wasteful - memory below 640K is scarce. The boot * program should check: * text+data <= &stack_variable - more_space_for_stack * text+data+bss+pad+space_for_page_tables <= end_of_memory * Oops, the gdt is in the carcass of the boot program so clearing * the rest of memory is still not possible. */ movl $tmpstk-KERNBASE,%esp /* bootstrap stack end location */ /* * Virtual address space of kernel: * * text | data | bss | [syms] | page dir | proc0 kernel stack | usr stk map | Sysmap * pages: 1 UPAGES (2) 1 NKPT (7) */ /* find end of kernel image */ movl $_end-KERNBASE,%ecx addl $NBPG-1,%ecx /* page align up */ andl $~(NBPG-1),%ecx movl %ecx,%esi /* esi = start of free memory */ movl %ecx,_KERNend-KERNBASE /* save end of kernel */ /* clear bss */ movl $_edata-KERNBASE,%edi subl %edi,%ecx /* get amount to clear */ xorl %eax,%eax /* specify zero fill */ cld rep stosb #ifdef DDB /* include symbols in "kernel image" if they are loaded */ movl _bootinfo+BI_ESYMTAB-KERNBASE,%edi testl %edi,%edi je over_symalloc addl $NBPG-1,%edi andl $~(NBPG-1),%edi movl %edi,%esi movl %esi,_KERNend-KERNBASE movl $KERNBASE,%edi addl %edi,_bootinfo+BI_SYMTAB-KERNBASE addl %edi,_bootinfo+BI_ESYMTAB-KERNBASE over_symalloc: #endif /* * The value in esi is both the end of the kernel bss and a pointer to * the kernel page directory, and is used by the rest of locore to build * the tables. * esi + 1(page dir) + 2(UPAGES) + 1(p0stack) + NKPT(number of kernel * page table pages) is then passed on the stack to init386(first) as * the value first. esi should ALWAYS be page aligned!! */ movl %esi,%ecx /* Get current first availiable address */ /* clear pagetables, page directory, stack, etc... */ movl %esi,%edi /* base (page directory) */ movl $((1+UPAGES+1+NKPT)*NBPG),%ecx /* amount to clear */ xorl %eax,%eax /* specify zero fill */ cld rep stosb /* physical address of Idle proc/kernel page directory */ movl %esi,_IdlePTD-KERNBASE /* * fillkpt * eax = (page frame address | control | status) == pte * ebx = address of page table * ecx = how many pages to map */ #define fillkpt \ 1: movl %eax,(%ebx) ; \ addl $NBPG,%eax ; /* increment physical address */ \ addl $4,%ebx ; /* next pte */ \ loop 1b ; /* * Map Kernel * * First step - build page tables */ #if defined (KGDB) || defined (BDE_DEBUGGER) movl _KERNend-KERNBASE,%ecx /* this much memory, */ shrl $PGSHIFT,%ecx /* for this many PTEs */ #ifdef BDE_DEBUGGER cmpl $0xa0,%ecx /* XXX - cover debugger pages */ jae 1f movl $0xa0,%ecx 1: #endif /* BDE_DEBUGGER */ movl $PG_V|PG_KW,%eax /* kernel R/W, valid */ lea ((1+UPAGES+1)*NBPG)(%esi),%ebx /* phys addr of kernel PT base */ movl %ebx,_KPTphys-KERNBASE /* save in global */ fillkpt #else /* !KGDB && !BDE_DEBUGGER */ /* write protect kernel text (doesn't do a thing for 386's - only 486's) */ movl $_etext-KERNBASE,%ecx /* get size of text */ addl $NBPG-1,%ecx /* round up to page */ shrl $PGSHIFT,%ecx /* for this many PTEs */ movl $PG_V|PG_KR,%eax /* specify read only */ #if 0 movl $_etext,%ecx /* get size of text */ subl $_btext,%ecx addl $NBPG-1,%ecx /* round up to page */ shrl $PGSHIFT,%ecx /* for this many PTEs */ movl $_btext-KERNBASE,%eax /* get offset to physical memory */ orl $PG_V|PG_KR,%eax /* specify read only */ #endif lea ((1+UPAGES+1)*NBPG)(%esi),%ebx /* phys addr of kernel PT base */ movl %ebx,_KPTphys-KERNBASE /* save in global */ fillkpt /* data and bss are r/w */ andl $PG_FRAME,%eax /* strip to just addr of bss */ movl _KERNend-KERNBASE,%ecx /* calculate size */ subl %eax,%ecx shrl $PGSHIFT,%ecx orl $PG_V|PG_KW,%eax /* valid, kernel read/write */ fillkpt #endif /* KGDB || BDE_DEBUGGER */ /* now initialize the page dir, upages, p0stack PT, and page tables */ movl $(1+UPAGES+1+NKPT),%ecx /* number of PTEs */ movl %esi,%eax /* phys address of PTD */ andl $PG_FRAME,%eax /* convert to PFN, should be a NOP */ orl $PG_V|PG_KW,%eax /* valid, kernel read/write */ movl %esi,%ebx /* calculate pte offset to ptd */ shrl $PGSHIFT-2,%ebx addl %esi,%ebx /* address of page directory */ addl $((1+UPAGES+1)*NBPG),%ebx /* offset to kernel page tables */ fillkpt /* map I/O memory map */ movl _KPTphys-KERNBASE,%ebx /* base of kernel page tables */ lea (0xa0 * PTESIZE)(%ebx),%ebx /* hardwire ISA hole at KERNBASE + 0xa0000 */ movl $0x100-0xa0,%ecx /* for this many pte s, */ movl $(0xa0000|PG_V|PG_KW|PG_N),%eax /* valid, kernel read/write, non-cacheable */ movl %ebx,_atdevphys-KERNBASE /* save phys addr of ptes */ fillkpt /* map proc 0's kernel stack into user page table page */ movl $UPAGES,%ecx /* for this many pte s, */ lea (1*NBPG)(%esi),%eax /* physical address in proc 0 */ lea (KERNBASE)(%eax),%edx /* change into virtual addr */ movl %edx,_proc0paddr-KERNBASE /* save VA for proc 0 init */ orl $PG_V|PG_KW,%eax /* valid, kernel read/write */ lea ((1+UPAGES)*NBPG)(%esi),%ebx /* addr of stack page table in proc 0 */ addl $(KSTKPTEOFF * PTESIZE),%ebx /* offset to kernel stack PTE */ fillkpt /* * Initialize kernel page table directory */ /* install a pde for temporary double map of bottom of VA */ movl _KPTphys-KERNBASE,%eax orl $PG_V|PG_KW,%eax /* valid, kernel read/write */ movl %eax,(%esi) /* which is where temp maps! */ /* initialize kernel pde's */ movl $(NKPT),%ecx /* for this many PDEs */ lea (KPTDI*PDESIZE)(%esi),%ebx /* offset of pde for kernel */ fillkpt /* install a pde recursively mapping page directory as a page table! */ movl %esi,%eax /* phys address of ptd in proc 0 */ orl $PG_V|PG_KW,%eax /* pde entry is valid */ movl %eax,PTDPTDI*PDESIZE(%esi) /* which is where PTmap maps! */ /* install a pde to map kernel stack for proc 0 */ lea ((1+UPAGES)*NBPG)(%esi),%eax /* physical address of pt in proc 0 */ orl $PG_V|PG_KW,%eax /* pde entry is valid */ movl %eax,KSTKPTDI*PDESIZE(%esi) /* which is where kernel stack maps! */ #ifdef BDE_DEBUGGER /* copy and convert stuff from old gdt and idt for debugger */ cmpl $0x0375c339,0x96104 /* XXX - debugger signature */ jne 1f movb $1,_bdb_exists-KERNBASE 1: pushal subl $2*6,%esp sgdt (%esp) movl 2(%esp),%esi /* base address of current gdt */ movl $_gdt-KERNBASE,%edi movl %edi,2(%esp) movl $8*18/4,%ecx cld rep /* copy gdt */ movsl movl $_gdt-KERNBASE,-8+2(%edi) /* adjust gdt self-ptr */ movb $0x92,-8+5(%edi) sidt 6(%esp) movl 6+2(%esp),%esi /* base address of current idt */ movl 8+4(%esi),%eax /* convert dbg descriptor to ... */ movw 8(%esi),%ax movl %eax,bdb_dbg_ljmp+1-KERNBASE /* ... immediate offset ... */ movl 8+2(%esi),%eax movw %ax,bdb_dbg_ljmp+5-KERNBASE /* ... and selector for ljmp */ movl 24+4(%esi),%eax /* same for bpt descriptor */ movw 24(%esi),%ax movl %eax,bdb_bpt_ljmp+1-KERNBASE movl 24+2(%esi),%eax movw %ax,bdb_bpt_ljmp+5-KERNBASE movl $_idt-KERNBASE,%edi movl %edi,6+2(%esp) movl $8*4/4,%ecx cld rep /* copy idt */ movsl lgdt (%esp) lidt 6(%esp) addl $2*6,%esp popal #endif /* BDE_DEBUGGER */ /* load base of page directory and enable mapping */ movl %esi,%eax /* phys address of ptd in proc 0 */ movl %eax,%cr3 /* load ptd addr into mmu */ movl %cr0,%eax /* get control word */ orl $CR0_PE|CR0_PG,%eax /* enable paging */ movl %eax,%cr0 /* and let's page NOW! */ pushl $begin /* jump to high mem */ ret begin: /* now running relocated at KERNBASE where the system is linked to run */ movl _atdevphys,%edx /* get pte PA */ subl _KPTphys,%edx /* remove base of ptes, now have phys offset */ shll $PGSHIFT-2,%edx /* corresponding to virt offset */ addl $KERNBASE,%edx /* add virtual base */ movl %edx,_atdevbase #include "sc.h" #include "vt.h" #if NSC > 0 || NVT > 0 /* XXX: can't scinit relocate Crtat relative to atdevbase itself? */ .globl _Crtat /* XXX - locore should not know about */ movl _Crtat,%eax /* variables of device drivers (pccons)! */ subl $(KERNBASE+0xA0000),%eax addl %eax,%edx movl %edx,_Crtat #endif /* set up bootstrap stack - 48 bytes */ movl $_kstack+UPAGES*NBPG-4*12,%esp /* bootstrap stack end location */ xorl %eax,%eax /* mark end of frames */ movl %eax,%ebp movl _proc0paddr,%eax movl %esi,PCB_CR3(%eax) #ifdef BDE_DEBUGGER /* relocate debugger gdt entries */ movl $_gdt+8*9,%eax /* adjust slots 9-17 */ movl $9,%ecx reloc_gdt: movb $KERNBASE>>24,7(%eax) /* top byte of base addresses, was 0, */ addl $8,%eax /* now KERNBASE>>24 */ loop reloc_gdt cmpl $0,_bdb_exists je 1f int $3 1: #endif /* BDE_DEBUGGER */ /* * Skip over the page tables and the kernel stack */ lea ((1+UPAGES+1+NKPT)*NBPG)(%esi),%esi pushl %esi /* value of first for init386(first) */ call _init386 /* wire 386 chip for unix operation */ popl %esi .globl __ucodesel,__udatasel pushl $0 /* unused */ pushl __udatasel /* ss */ pushl $0 /* esp - filled in by execve() */ pushl $PSL_USER /* eflags (IOPL 0, int enab) */ pushl __ucodesel /* cs */ pushl $0 /* eip - filled in by execve() */ subl $(12*4),%esp /* space for rest of registers */ pushl %esp /* call main with frame pointer */ call _main /* autoconfiguration, mountroot etc */ addl $(13*4),%esp /* back to a frame we can return with */ /* * now we've run main() and determined what cpu-type we are, we can * enable write protection and alignment checking on i486 cpus and * above. */ #if defined(I486_CPU) || defined(I586_CPU) cmpl $CPUCLASS_386,_cpu_class je 1f movl %cr0,%eax /* get control word */ orl $CR0_WP|CR0_AM,%eax /* enable i486 features */ movl %eax,%cr0 /* and do it */ #endif /* * on return from main(), we are process 1 * set up address space and stack so that we can 'return' to user mode */ 1: movl __ucodesel,%eax movl __udatasel,%ecx movl %cx,%ds movl %cx,%es movl %ax,%fs /* double map cs to fs */ movl %cx,%gs /* and ds to gs */ iret /* goto user! */ #define LCALL(x,y) .byte 0x9a ; .long y ; .word x NON_GPROF_ENTRY(sigcode) call SIGF_HANDLER(%esp) lea SIGF_SC(%esp),%eax /* scp (the call may have clobbered the */ /* copy at 8(%esp)) */ pushl %eax pushl %eax /* junk to fake return address */ movl $103,%eax /* XXX sigreturn() */ LCALL(0x7,0) /* enter kernel with args on stack */ hlt /* never gets here */ .globl _szsigcode _szsigcode: .long _szsigcode-_sigcode --------------446B9B3D2781E494167EB0E7 Content-Type: text/plain; charset=us-ascii; name="KERNEL" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="KERNEL" # # GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks # # $Id: GENERIC,v 1.46.2.6 1995/10/25 17:29:51 jkh Exp $ # machine "i386" cpu "I386_CPU" #cpu "I486_CPU" #cpu "I586_CPU" ident KERNEL maxusers 10 # options MATH_EMULATE #Support for x87 emulation options INET #InterNETworking options FFS #Berkeley Fast Filesystem options NFS #Network Filesystem options MSDOSFS #MSDOS Filesystem options "CD9660" #ISO 9660 Filesystem options PROCFS #Process filesystem options "COMPAT_43" #Compatible with BSD 4.3 options "SCSI_DELAY=15" #Be pessimistic about Joe SCSI device options BOUNCE_BUFFERS #include support for DMA bounce buffers options UCONSOLE #Allow users to grab the console options IPFIREWALL options USER_LDT #options SYSVSHM #options SYSVSEM #options SYSVMSG config kernel root on wd0 controller isa0 controller pci0 controller fdc0 at isa? port "IO_FD1" bio irq 6 drq 2 vector fdintr disk fd0 at fdc0 drive 0 disk fd1 at fdc0 drive 1 tape ft0 at fdc0 drive 2 controller wdc0 at isa? port "IO_WD1" bio irq 14 vector wdintr disk wd0 at wdc0 drive 0 disk wd1 at wdc0 drive 1 controller wdc1 at isa? port "IO_WD2" bio irq 15 vector wdintr disk wd2 at wdc1 drive 0 disk wd3 at wdc1 drive 1 options ATAPI #Enable ATAPI support for IDE bus device wcd0 #IDE CD-ROM # controller ncr0 # controller ahc0 # controller bt0 at isa? port "IO_BT0" bio irq ? vector btintr # controller uha0 at isa? port "IO_UHA0" bio irq ? drq 5 vector uhaintr # controller ahc1 at isa? bio irq ? vector ahcintr # controller ahb0 at isa? bio irq ? vector ahbintr # controller aha0 at isa? port "IO_AHA0" bio irq ? drq 5 vector ahaintr # controller aic0 at isa? port 0x340 bio irq 11 vector aicintr # controller nca0 at isa? port 0x1f88 bio irq 10 vector ncaintr # controller nca1 at isa? port 0x350 bio irq 5 vector ncaintr # controller sea0 at isa? bio irq 5 iomem 0xc8000 iosiz 0x2000 vector seaintr # controller scbus0 # device sd0 # device st0 device cd0 #Only need one of these, the code dynamically grows device wt0 at isa? port 0x300 bio irq 5 drq 1 vector wtintr # device mcd0 at isa? port 0x300 bio irq 10 vector mcdintr # device mcd1 at isa? port 0x340 bio irq 11 vector mcdintr # controller matcd0 at isa? port 0x230 bio # device scd0 at isa? port 0x230 bio # syscons is the default console driver, resembling an SCO console device sc0 at isa? port "IO_KBD" tty irq 1 vector scintr # Enable this and PCVT_FREEBSD for pcvt vt220 compatible console driver device vt0 at isa? port "IO_KBD" tty irq 1 vector pcrint #options "PCVT_FREEBSD=210" # pcvt running on FreeBSD 2.1 # options XSERVER # include code for XFree86 device npx0 at isa? port "IO_NPX" irq 13 vector npxintr device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr device sio2 at isa? port "IO_COM3" tty irq 5 vector siointr device sio3 at isa? port "IO_COM4" tty irq 9 vector siointr device lpt0 at isa? port? tty irq 7 vector lptintr # device lpt1 at isa? port? tty # device lpt2 at isa? port? tty # device mse0 at isa? port 0x23c tty irq 5 vector mseintr # Order is important here due to intrusive probes, do *not* alphabetize # this list of network interfaces until the probes have been fixed. # Right now it appears that the ie0 must be probed before ep0. See # revision 1.20 of this file. #device de0 # device ed0 at isa? port 0x280 net irq 5 iomem 0xd8000 vector edintr device ed1 at isa? port 0x300 net irq 5 iomem 0xd8000 vector edintr # device ie0 at isa? port 0x360 net irq 7 iomem 0xd0000 vector ieintr # device ep0 at isa? port 0x300 net irq 10 vector epintr # device ix0 at isa? port 0x300 net irq 10 iomem 0xd0000 iosiz 32768 vector ixintr # device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr # device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr # device lnc1 at isa? port 0x300 net irq 10 drq 0 vector lncintr # device ze0 at isa? port 0x300 net irq 5 iomem 0xd8000 vector zeintr # device zp0 at isa? port 0x300 net irq 10 iomem 0xd8000 vector zpintr controller snd0 device gus0 at isa? port 0x220 irq 10 drq 1 vector gusintr pseudo-device bpfilter 4 pseudo-device loop pseudo-device ether pseudo-device log pseudo-device sl 1 # ijppp uses tun instead of ppp device #pseudo-device ppp 1 pseudo-device tun 1 pseudo-device pty 16 pseudo-device gzip # Exec gzipped a.out's --------------446B9B3D2781E494167EB0E7--
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