arm-linux-20080115

LICENSE IPL10

make an arm linux port.

src/cf/osconf.m4

@@ -118,6 +118,38 @@ case $AFS_SYSNAME in
 		SHLIB_LINKER="${MT_CC} -shared"
 		;;
 
+	arm_linux24)
+		CCOBJ="${CC} -fPIC"
+		KERN_OPTMZ=-O2
+		LEX="flex -l"
+		MT_CFLAGS='-DAFS_PTHREAD_ENV -pthread -D_REENTRANT ${XCFLAGS}'
+		MT_LIBS="-lpthread"
+		PAM_OPTMZ=-O2
+		PAM_CFLAGS="-Dlinux -DLINUX_PAM -fPIC"
+		SHLIB_CFLAGS="-fPIC"
+		SHLIB_LDFLAGS="-shared -Xlinker -x"
+		TXLIBS="-lncurses"
+		XCFLAGS="-D_LARGEFILE64_SOURCE"
+		YACC="bison -y"
+		SHLIB_LINKER="${MT_CC} -shared"
+		;;
+
+	arm_linux26)
+		CCOBJ="${CC} -fPIC"
+		KERN_OPTMZ=-O2
+		LEX="flex -l"
+		MT_CFLAGS='-DAFS_PTHREAD_ENV -pthread -D_REENTRANT ${XCFLAGS}'
+		MT_LIBS="-lpthread"
+		PAM_OPTMZ=-O2
+		PAM_CFLAGS="-Dlinux -DLINUX_PAM -fPIC"
+		SHLIB_CFLAGS="-fPIC"
+		SHLIB_LDFLAGS="-shared -Xlinker -x"
+		TXLIBS="-lncurses"
+		XCFLAGS="-D_LARGEFILE64_SOURCE"
+		YACC="bison -y"
+		SHLIB_LINKER="${MT_CC} -shared"
+		;;
+
 	hp_ux102)
 		AS="/usr/ccs/bin/as"
 		CC="/opt/ansic/bin/cc -Ae"

src/config/afs_sysnames.h

@@ -263,6 +263,11 @@
 
 #define SYS_NAME_ID_i64_w2k             3500
 
+#define SYS_NAME_ID_arm_linux2          3800
+#define SYS_NAME_ID_arm_linux22         3801
+#define SYS_NAME_ID_arm_linux24         3802
+#define SYS_NAME_ID_arm_linux26         3803
+
 /*
  * Placeholder to keep system-wide standard flags since this file is included by all 
  * files (i.e in afs/param.h)

src/config/param.arm_linux24.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2000, International Business Machines Corporation and others.
+ * All Rights Reserved.
+ *
+ * This software has been released under the terms of the IBM Public
+ * License.  For details, see the LICENSE file in the top-level source
+ * directory or online at http://www.openafs.org/dl/license10.html
+ */
+
+#ifndef AFS_PARAM_H
+#define AFS_PARAM_H
+
+#ifndef UKERNEL
+
+/* This section for kernel libafs compiles only */
+#define AFS_ARM_LINUX20_ENV	1
+#define AFS_ARM_LINUX22_ENV	1
+#define AFS_ARM_LINUX24_ENV	1
+
+#else /* !defined(UKERNEL) */
+
+/* This section for user space compiles only */
+#define UKERNEL			1	/* user space kernel */
+
+#endif /* !defined(UKERNEL) */
+
+/* Machine / Operating system information */
+#define SYS_NAME		"arm_linux24"
+#define SYS_NAME_ID		SYS_NAME_ID_arm_linux24
+#define AFSLITTLE_ENDIAN	1
+#define AFS_SYSCALL 		137
+
+#endif /* AFS_PARAM_H */

src/config/param.arm_linux26.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright 2000, International Business Machines Corporation and others.
+ * All Rights Reserved.
+ *
+ * This software has been released under the terms of the IBM Public
+ * License.  For details, see the LICENSE file in the top-level source
+ * directory or online at http://www.openafs.org/dl/license10.html
+ */
+
+#ifndef AFS_PARAM_H
+#define AFS_PARAM_H
+
+#ifndef UKERNEL
+
+/* This section for kernel libafs compiles only */
+#define AFS_ARM_LINUX20_ENV	1
+#define AFS_ARM_LINUX22_ENV	1
+#define AFS_ARM_LINUX24_ENV	1
+#define AFS_ARM_LINUX26_ENV	1
+
+#else /* !defined(UKERNEL) */
+
+/* This section for user space compiles only */
+#define UKERNEL			1	/* user space kernel */
+
+#endif /* !defined(UKERNEL) */
+
+/* Machine / Operating system information */
+#define SYS_NAME		"arm_linux26"
+#define SYS_NAME_ID		SYS_NAME_ID_arm_linux26
+#define AFSLITTLE_ENDIAN	1
+#define AFS_SYSCALL 		137
+
+#endif /* AFS_PARAM_H */

src/des/andrew-conf.h

@@ -82,7 +82,11 @@
 #ifdef AFS_PPC64_LINUX20_ENV
 #include "conf-ppc64-linux.h"
 #else
+#ifdef AFS_ARM_LINUX20_ENV
+#include "conf-arm-linux.h"
+#else
 #include "conf-i386-linux.h"
+#endif /* AFS_ARM_LINUX20_ENV */
 #endif /* AFS_PPC64_LINUX20_ENV */
 #endif /* AFS_AMD64_LINUX20_ENV */
 #endif /* AFS_IA64_LINUX20_ENV */

src/des/conf-arm-linux.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright 1988 by the Massachusetts Institute of Technology.
+ *
+ * For copying and distribution information, please see the file
+ * <mit-copyright.h>.
+ *
+ * Machine-type definitions: Linux on Intel
+ */
+
+#include <mit-cpyright.h>
+
+#define BITS32
+#define BIG
+#define LSBFIRST

src/lwp/lwp.c

@@ -47,11 +47,13 @@ extern char *getenv();
 extern void *malloc(int size);
 extern void *realloc(void *ptr, int size);
 #endif
+#ifndef AFS_ARM_LINUX20_ENV
 #if defined(AFS_OSF_ENV) || defined(AFS_S390_LINUX20_ENV)
 extern int PRE_Block;		/* from preempt.c */
 #else
 extern char PRE_Block;		/* from preempt.c */
 #endif
+#endif
 
 #define ON		1
 #define OFF		0
@@ -367,11 +369,13 @@ LWP_CreateProcess(int (*ep) (), int stacksize, int priority, void *parm,
 	Initialize_PCB(temp, priority, stackmemory, stacksize, ep, parm, name);
 	insert(temp, &runnable[priority]);
 	temp2 = lwp_cpptr;
+#ifndef AFS_ARM_LINUX20_ENV
 	if (PRE_Block != 0)
 	    Abort_LWP("PRE_Block not 0");
 
 	/* Gross hack: beware! */
 	PRE_Block = 1;
+#endif
 	lwp_cpptr = temp;
 #if defined(AFS_PARISC_LINUX24_ENV)
 	savecontext(Create_Process_Part2, &temp2->context,
@@ -460,11 +464,13 @@ LWP_CreateProcess2(int (*ep) (), int stacksize, int priority, void *parm,
 	Initialize_PCB(temp, priority, stackptr, stacksize, ep, parm, name);
 	insert(temp, &runnable[priority]);
 	temp2 = lwp_cpptr;
+#ifndef AFS_ARM_LINUX20_ENV
 	if (PRE_Block != 0)
 	    Abort_LWP("PRE_Block not 0");
 
 	/* Gross hack: beware! */
 	PRE_Block = 1;
+#endif
 	lwp_cpptr = temp;
 	savecontext(Create_Process_Part2, &temp2->context,
 		    stackptr + stacksize - sizeof(void *));
@@ -956,8 +962,10 @@ Dispatcher(void)
 	printf("Dispatch %d [PCB at 0x%x] \"%s\"\n", ++dispatch_count,
 	       runnable[i].head, runnable[i].head->name);
 #endif
+#ifndef AFS_ARM_LINUX20_ENV
     if (PRE_Block != 1)
 	Abort_LWP("PRE_Block not 1");
+#endif
     lwp_cpptr = runnable[i].head;
 
     returnto(&lwp_cpptr->context);

src/lwp/process.s

@@ -10,8 +10,63 @@
 #define	IGNORE_STDS_H	1
 #include <afs/param.h>
 
-#if defined(RIOS)
+#if defined(__arm32__) || defined(__arm__)
+       /* register definitions */
+       fp      .req    r11
+       ip      .req    r12
+       sp      .req    r13
+       lp      .req    r14
+       pc      .req    r15
+       
+       /*
+          savecontext(f, area1, newsp)
+               int (*f)()#if defined(RIOS);
+               struct savearea *area1;
+               char *newsp;
+       */
 
+       /* Arguments appear as:	   f in r0, area1 in r1, newsp in r2 */
+
+       .text
+       .align  0
+       .globl  savecontext
+       .type   savecontext, #function
+savecontext:
+       @ build the frame
+       mov     ip, sp
+       stmfd   sp!, {fp, ip, lr, pc}
+       sub     fp, ip, #4
+       @ stack r0 - r10, current fp
+       stmfd   sp!, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, fp}
+       str     sp, [r1, #0]
+       @ check if newsp is zero
+       movs    r2, r2
+       movne   sp, r2
+       @ call function ...
+       mov     pc, r0
+
+       /*      should never get here ... */
+       /*      bl      EXT(abort) */
+
+       /*
+         returnto(area2)
+            struct savearea *area2;
+       */
+
+       /* area2 is in r0. */
+
+       .globl returnto
+       .type  returnto, #function
+returnto:
+       @ restore r0-r10, fp
+       ldr     r0, [r0, #0]
+       ldmfd   r0, {r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, fp}
+       @ return from function call
+       ldmea   fp, {fp, sp, pc}
+
+#endif /* __arm32__ or __arm__ */
+
+#if defined(RIOS)
 /*                 I don't know if we have to save the TOC (R2) or not...
  *		   Note that stack-frame is supposed to be aligned on 
  *		   a double-word boundary.