* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
@ 2009-03-27 1:37 liqin.chen
2009-03-27 18:40 ` Sam Ravnborg
0 siblings, 1 reply; 8+ messages in thread
From: liqin.chen @ 2009-03-27 1:37 UTC (permalink / raw)
To: linux-arch; +Cc: linux-kernel, torvalds
linux/score lastest patch place at
http://www.sunplusct.com/images/linux-score-patch/linux-score-20090324.patch
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/setup.h
linux-2.6-git.new/arch/score/include/asm/setup.h
--- linux-2.6-git.ori/arch/score/include/asm/setup.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/setup.h 2009-03-23
17:25:43.000000000 +0800
@@ -0,0 +1,33 @@
+#ifndef _SCORE_SETUP_H
+#define _SCORE_SETUP_H
+
+#define COMMAND_LINE_SIZE 256
+#define MEM_SIZE 0x2000000
+
+#ifdef __KERNEL__
+extern void setup_early_printk(void);
+
+extern void handle_nmi(void);
+extern void handle_adelinsn(void);
+extern void handle_adedata(void);
+extern void handle_ibe(void);
+extern void handle_pel(void);
+extern void handle_sys(void);
+extern void handle_ccu(void);
+extern void handle_ri(void);
+extern void handle_tr(void);
+extern void handle_ades(void);
+extern void handle_cee(void);
+extern void handle_cpe(void);
+extern void handle_dve(void);
+extern void handle_dbe(void);
+extern void handle_reserved(void);
+extern void handle_tlb_refill(void);
+extern void handle_tlb_invaild(void);
+extern void handle_mod(void);
+extern void __devinit cpu_cache_init(void);
+extern void debug_exception_vector(void);
+extern void general_exception_vector(void);
+#endif /* __KERNEL__ */
+
+#endif /* __SETUP_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/shmbuf.h
linux-2.6-git.new/arch/score/include/asm/shmbuf.h
--- linux-2.6-git.ori/arch/score/include/asm/shmbuf.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/shmbuf.h 2009-03-13
14:26:33.000000000 +0800
@@ -0,0 +1,29 @@
+#ifndef _ASM_SHMBUF_H
+#define _ASM_SHMBUF_H
+
+struct shmid64_ds {
+ struct ipc64_perm shm_perm; /* operation perms */
+ size_t shm_segsz; /* size of segment (bytes)
*/
+ __kernel_time_t shm_atime; /* last attach time */
+ __kernel_time_t shm_dtime; /* last detach time */
+ __kernel_time_t shm_ctime; /* last change time */
+ __kernel_pid_t shm_cpid; /* pid of creator */
+ __kernel_pid_t shm_lpid; /* pid of last operator */
+ unsigned long shm_nattch; /* no. of current attaches
*/
+ unsigned long __unused1;
+ unsigned long __unused2;
+};
+
+struct shminfo64 {
+ unsigned long shmmax;
+ unsigned long shmmin;
+ unsigned long shmmni;
+ unsigned long shmseg;
+ unsigned long shmall;
+ unsigned long __unused1;
+ unsigned long __unused2;
+ unsigned long __unused3;
+ unsigned long __unused4;
+};
+
+#endif /* _ASM_SHMBUF_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/shmparam.h
linux-2.6-git.new/arch/score/include/asm/shmparam.h
--- linux-2.6-git.ori/arch/score/include/asm/shmparam.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/shmparam.h 2009-03-14
13:52:52.000000000 +0800
@@ -0,0 +1,7 @@
+#ifndef _ASM_SHMPARAM_H
+#define _ASM_SHMPARAM_H
+
+#define __ARCH_FORCE_SHMLBA 1
+#define SHMLBA 0x40000 /* attach addr a
multiple of this */
+
+#endif /* _ASM_SHMPARAM_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/sigcontext.h
linux-2.6-git.new/arch/score/include/asm/sigcontext.h
--- linux-2.6-git.ori/arch/score/include/asm/sigcontext.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/sigcontext.h 2009-03-14
13:53:10.000000000 +0800
@@ -0,0 +1,22 @@
+#ifndef _ASM_SIGCONTEXT_H
+#define _ASM_SIGCONTEXT_H
+
+/*
+ * Keep this struct definition in sync with the sigcontext fragment
+ * in arch/score/tools/offset.c
+ */
+struct sigcontext {
+ unsigned int sc_regmask;
+ unsigned int sc_psr;
+ unsigned int sc_condition;
+ unsigned long sc_pc;
+ unsigned long sc_regs[32];
+ unsigned int sc_ssflags;
+ unsigned int sc_mdceh;
+ unsigned int sc_mdcel;
+ unsigned int sc_ecr;
+ unsigned long sc_ema;
+ unsigned long sc_sigset[4];
+};
+
+#endif /* _ASM_SIGCONTEXT_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/siginfo.h
linux-2.6-git.new/arch/score/include/asm/siginfo.h
--- linux-2.6-git.ori/arch/score/include/asm/siginfo.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/siginfo.h 2009-03-23
14:59:09.000000000 +0800
@@ -0,0 +1,113 @@
+#ifndef _ASM_SIGINFO_H
+#define _ASM_SIGINFO_H
+
+#define __ARCH_SIGEV_PREAMBLE_SIZE (sizeof(long) + 2*sizeof(int))
+#undef __ARCH_SI_TRAPNO /* exception code needs to fill this ...
*/
+
+#define HAVE_ARCH_SIGINFO_T
+#define HAVE_ARCH_COPY_SIGINFO
+
+struct siginfo;
+
+/*
+ * Careful to keep union _sifields from shifting ...
+ */
+#define __ARCH_SI_PREAMBLE_SIZE (3 * sizeof(int))
+
+#include <asm-generic/siginfo.h>
+
+typedef struct siginfo {
+ int si_signo;
+ int si_code;
+ int si_errno;
+ int __pad0[SI_MAX_SIZE / sizeof(int) - SI_PAD_SIZE - 3];
+
+ union {
+ int _pad[SI_PAD_SIZE];
+
+ /* kill() */
+ struct {
+ pid_t _pid; /* sender's pid */
+ __ARCH_SI_UID_T _uid; /* sender's uid */
+ } _kill;
+
+ /* POSIX.1b timers */
+ struct {
+ timer_t _tid; /* timer id */
+ int _overrun; /* overrun count */
+ char _pad[sizeof( __ARCH_SI_UID_T) - sizeof(int)];
+ sigval_t _sigval; /* same as below */
+ int _sys_private; /* not to be passed to
user */
+ } _timer;
+
+ /* POSIX.1b signals */
+ struct {
+ pid_t _pid; /* sender's pid */
+ __ARCH_SI_UID_T _uid; /* sender's uid */
+ sigval_t _sigval;
+ } _rt;
+
+ /* SIGCHLD */
+ struct {
+ pid_t _pid; /* which child */
+ __ARCH_SI_UID_T _uid; /* sender's uid */
+ int _status; /* exit code */
+ clock_t _utime;
+ clock_t _stime;
+ } _sigchld;
+
+ /* IRIX SIGCHLD */
+ struct {
+ pid_t _pid; /* which child */
+ clock_t _utime;
+ int _status; /* exit code */
+ clock_t _stime;
+ } _irix_sigchld;
+
+ /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
+ struct {
+ void __user *_addr; /* faulting insn/memory ref.
*/
+#ifdef __ARCH_SI_TRAPNO
+ int _trapno; /* TRAP # which caused the signal
*/
+#endif
+ } _sigfault;
+
+ /* SIGPOLL, SIGXFSZ (To do ...) */
+ struct {
+ __ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT,
POLL_MSG */
+ int _fd;
+ } _sigpoll;
+ } _sifields;
+} siginfo_t;
+
+/*
+ * si_code values
+ * Again these have been choosen to be IRIX compatible.
+ */
+#undef SI_ASYNCIO
+#undef SI_TIMER
+#undef SI_MESGQ
+#define SI_ASYNCIO -2 /* sent by AIO completion */
+#define SI_TIMER __SI_CODE(__SI_TIMER, -3) /* sent by timer expiration */
+#define SI_MESGQ __SI_CODE(__SI_MESGQ, -4) /* sent by real time mesq
state change */
+
+#ifdef __KERNEL__
+
+/*
+ * Duplicated here because of <asm-generic/siginfo.h> braindamage ...
+ */
+#include <linux/string.h>
+
+static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
+{
+ if (from->si_code < 0)
+ memcpy(to, from, sizeof(*to));
+ else
+ /* _sigchld is currently the largest know union member */
+ memcpy(to, from, 3 * sizeof(int) +
+ sizeof(from->_sifields._sigchld));
+}
+
+#endif
+
+#endif /* _ASM_SIGINFO_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/signal.h
linux-2.6-git.new/arch/score/include/asm/signal.h
--- linux-2.6-git.ori/arch/score/include/asm/signal.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/signal.h 2009-03-24
19:39:12.000000000 +0800
@@ -0,0 +1,128 @@
+#ifndef _ASM_SIGNAL_H
+#define _ASM_SIGNAL_H
+
+#include <linux/types.h>
+
+#define _NSIG 128
+#define _NSIG_BPW (sizeof(unsigned long) * 8)
+#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
+
+typedef struct {
+ unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+typedef unsigned long old_sigset_t; /* at least 32 bits */
+
+#define SIGHUP 1 /* Hangup (POSIX). */
+#define SIGINT 2 /* Interrupt (ANSI). */
+#define SIGQUIT 3 /* Quit (POSIX). */
+#define SIGILL 4 /* Illegal instruction (ANSI). */
+#define SIGTRAP 5 /* Trace trap (POSIX). */
+#define SIGIOT 6 /* IOT trap (4.2 BSD). */
+#define SIGABRT SIGIOT /* Abort (ANSI). */
+#define SIGEMT 7
+#define SIGFPE 8 /* Floating-point exception (ANSI). */
+#define SIGKILL 9 /* Kill, unblockable (POSIX). */
+#define SIGBUS 10 /* BUS error (4.2 BSD). */
+#define SIGSEGV 11 /* Segmentation violation (ANSI).
*/
+#define SIGSYS 12
+#define SIGPIPE 13 /* Broken pipe (POSIX). */
+#define SIGALRM 14 /* Alarm clock (POSIX). */
+#define SIGTERM 15 /* Termination (ANSI). */
+#define SIGUSR1 16 /* User-defined signal 1 (POSIX).
*/
+#define SIGUSR2 17 /* User-defined signal 2 (POSIX).
*/
+#define SIGCHLD 18 /* Child status has changed
(POSIX). */
+#define SIGCLD SIGCHLD /* Same as SIGCHLD (System V). */
+#define SIGPWR 19 /* Power failure restart (System V). */
+#define SIGWINCH 20 /* Window size change (4.3 BSD, Sun). */
+#define SIGURG 21 /* Urgent condition on socket (4.2 BSD).
*/
+#define SIGIO 22 /* I/O now possible (4.2 BSD). */
+#define SIGPOLL SIGIO /* Pollable event occurred (System
V). */
+#define SIGSTOP 23 /* Stop, unblockable (POSIX). */
+#define SIGTSTP 24 /* Keyboard stop (POSIX). */
+#define SIGCONT 25 /* Continue (POSIX). */
+#define SIGTTIN 26 /* Background read from tty
(POSIX). */
+#define SIGTTOU 27 /* Background write to tty
(POSIX). */
+#define SIGVTALRM 28 /* Virtual alarm clock (4.2 BSD). */
+#define SIGPROF 29 /* Profiling alarm clock (4.2
BSD). */
+#define SIGXCPU 30 /* CPU limit exceeded (4.2 BSD).
*/
+#define SIGXFSZ 31 /* File size limit exceeded (4.2
BSD). */
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN 32
+#define SIGRTMAX _NSIG
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long
ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the
handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_ONSTACK 0x08000000
+#define SA_RESETHAND 0x80000000
+#define SA_RESTART 0x10000000
+#define SA_SIGINFO 0x00000008
+#define SA_NODEFER 0x40000000
+#define SA_NOCLDWAIT 0x00010000
+#define SA_NOCLDSTOP 0x00000001
+
+#define SA_NOMASK SA_NODEFER
+#define SA_ONESHOT SA_RESETHAND
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK 1
+#define SS_DISABLE 2
+
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+
+#ifdef __KERNEL__
+
+#ifdef CONFIG_TRAD_SIGNALS
+#define sig_uses_siginfo(ka) ((ka)->sa.sa_flags & SA_SIGINFO)
+#else
+#define sig_uses_siginfo(ka) (1)
+#endif
+
+#endif /* __KERNEL__ */
+
+#define SIG_BLOCK 1 /* for blocking signals */
+#define SIG_UNBLOCK 2 /* for unblocking signals */
+#define SIG_SETMASK 3 /* for setting the signal mask */
+
+#include <asm-generic/signal.h>
+
+struct sigaction {
+ unsigned int sa_flags;
+ __sighandler_t sa_handler;
+ sigset_t sa_mask;
+};
+
+struct k_sigaction {
+ struct sigaction sa;
+};
+
+/* IRIX compatible stack_t */
+typedef struct sigaltstack {
+ void __user *ss_sp;
+ size_t ss_size;
+ int ss_flags;
+} stack_t;
+
+#ifdef __KERNEL__
+#include <asm/sigcontext.h>
+
+#define ptrace_signal_deliver(regs, cookie) do { } while (0)
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_SIGNAL_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/socket.h
linux-2.6-git.new/arch/score/include/asm/socket.h
--- linux-2.6-git.ori/arch/score/include/asm/socket.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/socket.h 2009-03-23
17:48:41.000000000 +0800
@@ -0,0 +1,109 @@
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <asm/sockios.h>
+
+/*
+ * For setsockopt(2)
+ *
+ * This defines are ABI conformant as far as Linux supports these ...
+ */
+#define SOL_SOCKET 0xffff
+
+#define SO_DEBUG 0x0001 /* Record debugging information. */
+#define SO_REUSEADDR 0x0004 /* Allow reuse of local addresses. */
+#define SO_KEEPALIVE 0x0008 /* Keep connections alive and send
+ SIGPIPE when they die. */
+#define SO_DONTROUTE 0x0010 /* Don't do local routing. */
+#define SO_BROADCAST 0x0020 /* Allow transmission of
+ broadcast messages. */
+#define SO_LINGER 0x0080 /* Block on close of a reliable
+ socket to transmit pending data. */
+#define SO_OOBINLINE 0x0100 /* Receive out-of-band data in-band. */
+#if 0
+To add: #define SO_REUSEPORT 0x0200 /* Allow local address and port
reuse. */
+#endif
+
+#define SO_TYPE 0x1008 /* Compatible name for SO_STYLE.
*/
+#define SO_STYLE SO_TYPE /* Synonym */
+#define SO_ERROR 0x1007 /* get error status and clear */
+#define SO_SNDBUF 0x1001 /* Send buffer size. */
+#define SO_RCVBUF 0x1002 /* Receive buffer. */
+#define SO_SNDLOWAT 0x1003 /* send low-water mark */
+#define SO_RCVLOWAT 0x1004 /* receive low-water mark */
+#define SO_SNDTIMEO 0x1005 /* send timeout */
+#define SO_RCVTIMEO 0x1006 /* receive timeout */
+#define SO_ACCEPTCONN 0x1009
+
+/* linux-specific, might as well be the same as on i386 */
+#define SO_NO_CHECK 11
+#define SO_PRIORITY 12
+#define SO_BSDCOMPAT 14
+
+#define SO_PASSCRED 17
+#define SO_PEERCRED 18
+
+/* Security levels - as per NRL IPv6 - don't actually do anything */
+#define SO_SECURITY_AUTHENTICATION 22
+#define SO_SECURITY_ENCRYPTION_TRANSPORT 23
+#define SO_SECURITY_ENCRYPTION_NETWORK 24
+
+#define SO_BINDTODEVICE 25
+
+/* Socket filtering */
+#define SO_ATTACH_FILTER 26
+#define SO_DETACH_FILTER 27
+
+#define SO_PEERNAME 28
+#define SO_TIMESTAMP 29
+#define SCM_TIMESTAMP SO_TIMESTAMP
+
+#define SO_PEERSEC 30
+#define SO_SNDBUFFORCE 31
+#define SO_RCVBUFFORCE 33
+#define SO_PASSSEC 34
+#define SO_TIMESTAMPNS 35
+#define SCM_TIMESTAMPNS SO_TIMESTAMPNS
+
+#define SO_MARK 36
+
+#ifdef __KERNEL__
+
+/** sock_type - Socket types
+ *
+ * Please notice that for binary compat reasons SCORE has to
+ * override the enum sock_type in include/linux/net.h, so
+ * we define ARCH_HAS_SOCKET_TYPES here.
+ *
+ * @SOCK_DGRAM - datagram (conn.less) socket
+ * @SOCK_STREAM - stream (connection) socket
+ * @SOCK_RAW - raw socket
+ * @SOCK_RDM - reliably-delivered message
+ * @SOCK_SEQPACKET - sequential packet socket
+ * @SOCK_PACKET - linux specific way of getting packets at the dev level.
+ * For writing rarp and other similar things on the user
level.
+ */
+enum sock_type {
+ SOCK_DGRAM = 1,
+ SOCK_STREAM = 2,
+ SOCK_RAW = 3,
+ SOCK_RDM = 4,
+ SOCK_SEQPACKET = 5,
+ SOCK_DCCP = 6,
+ SOCK_PACKET = 10,
+};
+
+#define SOCK_MAX (SOCK_PACKET + 1)
+/* Mask which covers at least up to SOCK_MASK-1. The
+ * * remaining bits are used as flags. */
+#define SOCK_TYPE_MASK 0xf
+
+/* Flags for socket, socketpair, paccept */
+#define SOCK_CLOEXEC O_CLOEXEC
+#define SOCK_NONBLOCK O_NONBLOCK
+
+#define ARCH_HAS_SOCKET_TYPES 1
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_SOCKET_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/sockios.h
linux-2.6-git.new/arch/score/include/asm/sockios.h
--- linux-2.6-git.ori/arch/score/include/asm/sockios.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/sockios.h 2009-03-13
14:26:33.000000000 +0800
@@ -0,0 +1,17 @@
+#ifndef _ASM_SOCKIOS_H
+#define _ASM_SOCKIOS_H
+
+#include <asm/ioctl.h>
+
+/* Socket-level I/O control calls. */
+#define FIOGETOWN _IOR('f', 123, int)
+#define FIOSETOWN _IOW('f', 124, int)
+
+#define SIOCATMARK _IOR('s', 7, int)
+#define SIOCSPGRP _IOW('s', 8, pid_t)
+#define SIOCGPGRP _IOR('s', 9, pid_t)
+
+#define SIOCGSTAMP 0x8906 /* Get stamp (timeval) */
+#define SIOCGSTAMPNS 0x8907 /* Get stamp (timespec) */
+
+#endif /* _ASM_SOCKIOS_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/statfs.h
linux-2.6-git.new/arch/score/include/asm/statfs.h
--- linux-2.6-git.ori/arch/score/include/asm/statfs.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/statfs.h 2009-03-23
15:00:10.000000000 +0800
@@ -0,0 +1,49 @@
+#ifndef _ASM_STATFS_H
+#define _ASM_STATFS_H
+
+#include <linux/posix_types.h>
+
+#ifndef __KERNEL_STRICT_NAMES
+
+#include <linux/types.h>
+
+typedef __kernel_fsid_t fsid_t;
+
+#endif
+
+struct statfs {
+ long f_type;
+#define f_fstyp f_type
+ long f_bsize;
+ long f_frsize; /* Fragment size - unsupported */
+ long f_blocks;
+ long f_bfree;
+ long f_files;
+ long f_ffree;
+ long f_bavail;
+
+ /* Linux specials */
+ __kernel_fsid_t f_fsid;
+ long f_namelen;
+ long f_spare[6];
+};
+
+/*
+ * Unlike the traditional version the LFAPI version has none of the ABI
junk
+ */
+struct statfs64 {
+ __u32 f_type;
+ __u32 f_bsize;
+ __u32 f_frsize; /* Fragment size - unsupported */
+ __u32 __pad;
+ __u64 f_blocks;
+ __u64 f_bfree;
+ __u64 f_files;
+ __u64 f_ffree;
+ __u64 f_bavail;
+ __kernel_fsid_t f_fsid;
+ __u32 f_namelen;
+ __u32 f_spare[6];
+};
+
+#endif /* _ASM_STATFS_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/stat.h
linux-2.6-git.new/arch/score/include/asm/stat.h
--- linux-2.6-git.ori/arch/score/include/asm/stat.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/stat.h 2009-03-23
17:49:13.000000000 +0800
@@ -0,0 +1,75 @@
+#ifndef _ASM_STAT_H
+#define _ASM_STAT_H
+
+#include <linux/types.h>
+
+struct stat {
+ unsigned st_dev;
+ long st_pad1[3]; /* Reserved for network id
*/
+ ino_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ unsigned st_rdev;
+ long st_pad2[2];
+ off_t st_size;
+ long st_pad3;
+ /*
+ * Actually this should be timestruc_t st_atime, st_mtime and
st_ctime
+ * but we don't have it under Linux.
+ */
+ time_t st_atime;
+ long st_atime_nsec;
+ time_t st_mtime;
+ long st_mtime_nsec;
+ time_t st_ctime;
+ long st_ctime_nsec;
+ long st_blksize;
+ long st_blocks;
+ long st_pad4[14];
+};
+
+/*
+ * This matches struct stat64 in glibc2.1, hence the absolutely insane
+ * amounts of padding around dev_t's. The memory layout is the same as
of
+ * struct stat of the 64-bit kernel.
+ */
+
+struct stat64 {
+ unsigned long st_dev;
+ unsigned long st_pad0[3]; /* Reserved for st_dev expansion
*/
+
+ unsigned long long st_ino;
+
+ mode_t st_mode;
+ nlink_t st_nlink;
+
+ uid_t st_uid;
+ gid_t st_gid;
+
+ unsigned long st_rdev;
+ unsigned long st_pad1[3]; /* Reserved for st_rdev expansion
*/
+
+ long long st_size;
+
+ /*
+ * Actually this should be timestruc_t st_atime, st_mtime and
st_ctime
+ * but we don't have it under Linux.
+ */
+ time_t st_atime;
+ unsigned long st_atime_nsec; /* Reserved for st_atime expansion
*/
+
+ time_t st_mtime;
+ unsigned long st_mtime_nsec; /* Reserved for st_mtime expansion
*/
+
+ time_t st_ctime;
+ unsigned long st_ctime_nsec; /* Reserved for st_ctime expansion
*/
+
+ unsigned long st_blksize;
+ unsigned long st_pad2;
+
+ long long st_blocks;
+};
+
+#endif /* _ASM_STAT_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/string.h
linux-2.6-git.new/arch/score/include/asm/string.h
--- linux-2.6-git.ori/arch/score/include/asm/string.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/string.h 2009-03-13
14:26:33.000000000 +0800
@@ -0,0 +1,8 @@
+#ifndef _ASM_STRING_H
+#define _ASM_STRING_H
+
+extern void *memset(void *__s, int __c, size_t __count);
+extern void *memcpy(void *__to, __const__ void *__from, size_t __n);
+extern void *memmove(void *__dest, __const__ void *__src, size_t __n);
+
+#endif /* _ASM_STRING_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/swab.h
linux-2.6-git.new/arch/score/include/asm/swab.h
--- linux-2.6-git.ori/arch/score/include/asm/swab.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/swab.h 2009-03-23
17:49:33.000000000 +0800
@@ -0,0 +1,13 @@
+#ifndef _ASM_SWAB_H
+#define _ASM_SWAB_H
+
+#include <asm/types.h>
+
+#ifdef __GNUC__
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#define __SWAB_64_THRU_32__
+#endif
+
+#endif /* __GNUC__ */
+#endif /* _ASM_SWAB_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/system.h
linux-2.6-git.new/arch/score/include/asm/system.h
--- linux-2.6-git.ori/arch/score/include/asm/system.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/system.h 2009-03-25
09:55:03.000000000 +0800
@@ -0,0 +1,96 @@
+#ifndef _ASM_SYSTEM_H
+#define _ASM_SYSTEM_H
+
+#include <linux/types.h>
+#include <linux/irqflags.h>
+
+extern void *resume(void *last, void *next, void *next_ti);
+
+struct task_struct;
+
+#define switch_to(prev, next, last) \
+do { \
+ (last) = resume(prev, next, task_thread_info(next)); \
+} while (0)
+
+#define finish_arch_switch(prev) \
+do { \
+} while (0)
+
+typedef void (*vi_handler_t)(void);
+extern unsigned long arch_align_stack(unsigned long sp);
+
+#define mb() barrier()
+#define rmb() barrier()
+#define wmb() barrier()
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+
+#define read_barrier_depends() do {} while(0)
+#define smp_read_barrier_depends() do {} while(0)
+
+#define set_mb(var, value) do {var = value; wmb();} while (0)
+
+#define __HAVE_ARCH_CMPXCHG 1
+
+#include <asm-generic/cmpxchg-local.h>
+#define cmpxchg_local(ptr, o, n) \
+ ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned
long)(o),\
+ (unsigned long)(n), sizeof(*(ptr))))
+
+#ifndef __ASSEMBLY__
+
+struct __xchg_dummy { unsigned long a[100]; };
+#define __xg(x) ((struct __xchg_dummy *)(x))
+
+static inline
+unsigned long __xchg(volatile unsigned long *m, unsigned long val)
+{
+ unsigned long retval;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ retval = *m;
+ *m = val;
+ local_irq_restore(flags);
+ return retval;
+}
+
+#define xchg(ptr, v) \
+ ((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr), \
+ (unsigned long)(v)))
+
+static inline unsigned long __cmpxchg(volatile unsigned long *m,
+ unsigned long old, unsigned long
new)
+{
+ unsigned long retval;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ retval = *m;
+ if (retval == old)
+ *m = new;
+ local_irq_restore(flags);
+ return retval;
+}
+
+#define cmpxchg(ptr, o, n) \
+ ((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
+ (unsigned long)(o), \
+ (unsigned long)(n)))
+
+struct pt_regs;
+
+extern void __die(const char *, struct pt_regs *, const char *,
+ const char *, unsigned long) __attribute__((noreturn));
+extern void __die_if_kernel(const char *, struct pt_regs *, const char *,
+ const char *, unsigned long);
+
+#define die(msg, regs) \
+ __die(msg, regs, __FILE__ ":", __FUNCTION__, __LINE__)
+#define die_if_kernel(msg, regs) \
+ __die_if_kernel(msg, regs, __FILE__ ":", __FUNCTION__, __LINE__)
+
+#endif /* !__ASSEMBLY__ */
+#endif /* _ASM_SYSTEM_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/termbits.h
linux-2.6-git.new/arch/score/include/asm/termbits.h
--- linux-2.6-git.ori/arch/score/include/asm/termbits.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/termbits.h 2009-03-26
10:30:52.000000000 +0800
@@ -0,0 +1,195 @@
+#ifndef __ASM_SCORE_TERMBITS_H
+#define __ASM_SCORE_TERMBITS_H
+
+#include <linux/posix_types.h>
+
+typedef unsigned char cc_t;
+typedef unsigned int speed_t;
+typedef unsigned int tcflag_t;
+
+#define NCCS 19
+struct termios {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+};
+
+struct termios2 {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
+};
+
+struct ktermios {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
+};
+
+/* c_cc characters */
+#define VINTR 0
+#define VQUIT 1
+#define VERASE 2
+#define VKILL 3
+#define VEOF 4
+#define VTIME 5
+#define VMIN 6
+#define VSWTC 7
+#define VSTART 8
+#define VSTOP 9
+#define VSUSP 10
+#define VEOL 11
+#define VREPRINT 12
+#define VDISCARD 13
+#define VWERASE 14
+#define VLNEXT 15
+#define VEOL2 16
+
+/* c_iflag bits */
+#define IGNBRK 0000001
+#define BRKINT 0000002
+#define IGNPAR 0000004
+#define PARMRK 0000010
+#define INPCK 0000020
+#define ISTRIP 0000040
+#define INLCR 0000100
+#define IGNCR 0000200
+#define ICRNL 0000400
+#define IUCLC 0001000
+#define IXON 0002000
+#define IXANY 0004000
+#define IXOFF 0010000
+#define IMAXBEL 0020000
+#define IUTF8 0040000
+
+/* c_oflag bits */
+#define OPOST 0000001
+#define OLCUC 0000002
+#define ONLCR 0000004
+#define OCRNL 0000010
+#define ONOCR 0000020
+#define ONLRET 0000040
+#define OFILL 0000100
+#define OFDEL 0000200
+#define NLDLY 0000400
+#define NL0 0000000
+#define NL1 0000400
+#define CRDLY 0003000
+#define CR0 0000000
+#define CR1 0001000
+#define CR2 0002000
+#define CR3 0003000
+#define TABDLY 0014000
+#define TAB0 0000000
+#define TAB1 0004000
+#define TAB2 0010000
+#define TAB3 0014000
+#define XTABS 0014000
+#define BSDLY 0020000
+#define BS0 0000000
+#define BS1 0020000
+#define VTDLY 0040000
+#define VT0 0000000
+#define VT1 0040000
+#define FFDLY 0100000
+#define FF0 0000000
+#define FF1 0100000
+
+/* c_cflag bit meaning */
+#define CBAUD 0010017
+#define B0 0000000 /* hang up */
+#define B50 0000001
+#define B75 0000002
+#define B110 0000003
+#define B134 0000004
+#define B150 0000005
+#define B200 0000006
+#define B300 0000007
+#define B600 0000010
+#define B1200 0000011
+#define B1800 0000012
+#define B2400 0000013
+#define B4800 0000014
+#define B9600 0000015
+#define B19200 0000016
+#define B38400 0000017
+#define EXTA B19200
+#define EXTB B38400
+#define CSIZE 0000060
+#define CS5 0000000
+#define CS6 0000020
+#define CS7 0000040
+#define CS8 0000060
+#define CSTOPB 0000100
+#define CREAD 0000200
+#define PARENB 0000400
+#define PARODD 0001000
+#define HUPCL 0002000
+#define CLOCAL 0004000
+#define CBAUDEX 0010000
+#define B57600 0010001
+#define B115200 0010002
+#define B230400 0010003
+#define B460800 0010004
+#define B500000 0010005
+#define B576000 0010006
+#define B921600 0010007
+#define B1000000 0010010
+#define B1152000 0010011
+#define B1500000 0010012
+#define B2000000 0010013
+#define B2500000 0010014
+#define B3000000 0010015
+#define B3500000 0010016
+#define B4000000 0010017
+#define CIBAUD 002003600000 /* input baud rate (not used) */
+#define CMSPAR 010000000000 /* mark or space (stick) parity */
+#define CRTSCTS 020000000000 /* flow control */
+
+/* c_lflag bits */
+#define ISIG 0000001
+#define ICANON 0000002
+#define XCASE 0000004
+#define ECHO 0000010
+#define ECHOE 0000020
+#define ECHOK 0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+#define IEXTEN 0100000
+
+/* tcflow() and TCXONC use these */
+#define TCOOFF 0
+#define TCOON 1
+#define TCIOFF 2
+#define TCION 3
+
+/* tcflush() and TCFLSH use these */
+#define TCIFLUSH 0
+#define TCOFLUSH 1
+#define TCIOFLUSH 2
+
+/* tcsetattr uses these */
+#define TCSANOW 0
+#define TCSADRAIN 1
+#define TCSAFLUSH 2
+
+#endif /* __ASM_SCORE_TERMBITS_H */
diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
linux-2.6-git.ori/arch/score/include/asm/termios.h
linux-2.6-git.new/arch/score/include/asm/termios.h
--- linux-2.6-git.ori/arch/score/include/asm/termios.h 1970-01-01
08:00:00.000000000 +0800
+++ linux-2.6-git.new/arch/score/include/asm/termios.h 2009-03-23
15:02:13.000000000 +0800
@@ -0,0 +1,85 @@
+#ifndef _ASM_TERMIOS_H
+#define _ASM_TERMIOS_H
+
+#include <asm/termbits.h>
+#include <asm/ioctls.h>
+
+struct sgttyb {
+ char sg_ispeed;
+ char sg_ospeed;
+ char sg_erase;
+ char sg_kill;
+ int sg_flags; /* SGI special - int, not short */
+};
+
+struct tchars {
+ char t_intrc;
+ char t_quitc;
+ char t_startc;
+ char t_stopc;
+ char t_eofc;
+ char t_brkc;
+};
+
+struct ltchars {
+ char t_suspc; /* stop process signal */
+ char t_dsuspc; /* delayed stop process signal */
+ char t_rprntc; /* reprint line */
+ char t_flushc; /* flush output (toggles) */
+ char t_werasc; /* word erase */
+ char t_lnextc; /* literal next character */
+};
+
+/* TIOCGSIZE, TIOCSSIZE not defined yet. Only needed for SunOS source
+ compatibility anyway ... */
+
+struct winsize {
+ unsigned short ws_row;
+ unsigned short ws_col;
+ unsigned short ws_xpixel;
+ unsigned short ws_ypixel;
+};
+
+#define NCC 8
+struct termio {
+ unsigned short c_iflag; /* input mode flags */
+ unsigned short c_oflag; /* output mode flags */
+ unsigned short c_cflag; /* control mode flags */
+ unsigned short c_lflag; /* local mode flags */
+ char c_line; /* line discipline */
+ unsigned char c_cc[NCCS]; /* control characters */
+};
+
+#ifdef __KERNEL__
+#include <linux/module.h>
+
+/*
+ * intr=^C quit=^\ erase=del kill=^U
+ * vmin=\1 vtime=\0 eol2=\0 swtc=\0
+ * start=^Q stop=^S susp=^Z vdsusp=
+ * reprint=^R discard=^U werase=^W lnext=^V
+ * eof=^D eol=\0
+ */
+#define INIT_C_CC
"\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
+#endif
+
+/* modem lines */
+#define TIOCM_LE 0x001 /* line enable */
+#define TIOCM_DTR 0x002 /* data terminal ready */
+#define TIOCM_RTS 0x004 /* request to send */
+#define TIOCM_ST 0x010 /* secondary transmit */
+#define TIOCM_SR 0x020 /* secondary receive */
+#define TIOCM_CTS 0x040 /* clear to send */
+#define TIOCM_CAR 0x100 /* carrier detect */
+#define TIOCM_CD TIOCM_CAR
+#define TIOCM_RNG 0x200 /* ring */
+#define TIOCM_RI TIOCM_RNG
+#define TIOCM_DSR 0x400 /* data set ready */
+#define TIOCM_OUT1 0x2000
+#define TIOCM_OUT2 0x4000
+#define TIOCM_LOOP 0x8000
+
+#ifdef __KERNEL__
+#include <asm-generic/termios.h>
+#endif /* defined(__KERNEL__) */
+#endif /* _ASM_TERMIOS_H */
Signed off by: Chen Liqin <liqin.chen@sunplusct.com>
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 1:37 [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor liqin.chen
@ 2009-03-27 18:40 ` Sam Ravnborg
2009-03-27 19:19 ` Arnd Bergmann
0 siblings, 1 reply; 8+ messages in thread
From: Sam Ravnborg @ 2009-03-27 18:40 UTC (permalink / raw)
To: liqin.chen; +Cc: linux-arch, linux-kernel, torvalds
> +
> +#endif /* __SETUP_H */
> diff -uprN -x linux-2.6-git.ori/Documentation/dontdiff
> linux-2.6-git.ori/arch/score/include/asm/shmbuf.h
> linux-2.6-git.new/arch/score/include/asm/shmbuf.h
> --- linux-2.6-git.ori/arch/score/include/asm/shmbuf.h 1970-01-01
> 08:00:00.000000000 +0800
> +++ linux-2.6-git.new/arch/score/include/asm/shmbuf.h 2009-03-13
> 14:26:33.000000000 +0800
> @@ -0,0 +1,29 @@
> +#ifndef _ASM_SHMBUF_H
> +#define _ASM_SHMBUF_H
> +
> +struct shmid64_ds {
> + struct ipc64_perm shm_perm; /* operation perms */
> + size_t shm_segsz; /* size of segment (bytes)
> */
> + __kernel_time_t shm_atime; /* last attach time */
> + __kernel_time_t shm_dtime; /* last detach time */
> + __kernel_time_t shm_ctime; /* last change time */
> + __kernel_pid_t shm_cpid; /* pid of creator */
> + __kernel_pid_t shm_lpid; /* pid of last operator */
> + unsigned long shm_nattch; /* no. of current attaches
> */
> + unsigned long __unused1;
> + unsigned long __unused2;
> +};
This is an exported header and you mix wide specific and generic types.
The recommended way is to stick to the __[u]{32,64}int versions + the kernel
specific types as __kernel_pid_t.
In other words avoid use of int, long etc in your exported headers.
For good measure try "make headers_check" and fix all warnings.
But that will NOT find uses of int/long so here you rely on a manual process.
The above is one of several files where this is used.
See full list of arch specific headers that are exported in the file:
include/asm-generic/Kbuild.asm
Sam
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 18:40 ` Sam Ravnborg
@ 2009-03-27 19:19 ` Arnd Bergmann
2009-03-27 20:26 ` Sam Ravnborg
0 siblings, 1 reply; 8+ messages in thread
From: Arnd Bergmann @ 2009-03-27 19:19 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: liqin.chen, linux-arch, linux-kernel, torvalds
On Friday 27 March 2009, Sam Ravnborg wrote:
> > +struct shmid64_ds {
> > + struct ipc64_perm shm_perm; /* operation perms */
> > + size_t shm_segsz; /* size of segment (bytes)
> > */
> > + __kernel_time_t shm_atime; /* last attach time */
> > + __kernel_time_t shm_dtime; /* last detach time */
> > + __kernel_time_t shm_ctime; /* last change time */
> > + __kernel_pid_t shm_cpid; /* pid of creator */
> > + __kernel_pid_t shm_lpid; /* pid of last operator */
> > + unsigned long shm_nattch; /* no. of current attaches
> > */
> > + unsigned long __unused1;
> > + unsigned long __unused2;
> > +};
>
> This is an exported header and you mix wide specific and generic types.
> The recommended way is to stick to the __[u]{32,64}int versions + the kernel
> specific types as __kernel_pid_t.
> In other words avoid use of int, long etc in your exported headers.
>
This is correct in general, but in this particular case (SysV IPC) it is
exactly what most of the other architectures do. It's basically impossible
to get this right, so simply doing the same as x86 is the best option
I found (unlike most of the other headers).
Arnd <><
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 19:19 ` Arnd Bergmann
@ 2009-03-27 20:26 ` Sam Ravnborg
2009-03-27 20:53 ` Arnd Bergmann
0 siblings, 1 reply; 8+ messages in thread
From: Sam Ravnborg @ 2009-03-27 20:26 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: liqin.chen, linux-arch, linux-kernel, torvalds
On Fri, Mar 27, 2009 at 08:19:53PM +0100, Arnd Bergmann wrote:
> On Friday 27 March 2009, Sam Ravnborg wrote:
> > > +struct shmid64_ds {
> > > + struct ipc64_perm shm_perm; /* operation perms */
> > > + size_t shm_segsz; /* size of segment (bytes)
> > > */
> > > + __kernel_time_t shm_atime; /* last attach time */
> > > + __kernel_time_t shm_dtime; /* last detach time */
> > > + __kernel_time_t shm_ctime; /* last change time */
> > > + __kernel_pid_t shm_cpid; /* pid of creator */
> > > + __kernel_pid_t shm_lpid; /* pid of last operator */
> > > + unsigned long shm_nattch; /* no. of current attaches
> > > */
> > > + unsigned long __unused1;
> > > + unsigned long __unused2;
> > > +};
> >
> > This is an exported header and you mix wide specific and generic types.
> > The recommended way is to stick to the __[u]{32,64}int versions + the kernel
> > specific types as __kernel_pid_t.
> > In other words avoid use of int, long etc in your exported headers.
> >
>
> This is correct in general, but in this particular case (SysV IPC) it is
> exactly what most of the other architectures do. It's basically impossible
> to get this right, so simply doing the same as x86 is the best option
> I found (unlike most of the other headers).
Thats strange indeed.
This structure will then change layout depending on the target bit-size
of the compiler.
From x86:
#ifdef __i386__
unsigned long __unused1;
#endif
__kernel_time_t shm_dtime; /* last detach time */
#ifdef __i386__
unsigned long __unused2;
#endif
long is 64 bit in one case and 32 bit in another case.
I'm confused..
I would expect it to be safer to be bit-size neutral in our
exported headers.
But the score people know there userlend best so let them decide.
Still they should audit all their exported headers.
They cannot assume it was right because they copied them from
somewhere.
Sam
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 20:26 ` Sam Ravnborg
@ 2009-03-27 20:53 ` Arnd Bergmann
2009-03-27 21:22 ` Sam Ravnborg
2009-03-30 2:25 ` liqin.chen
0 siblings, 2 replies; 8+ messages in thread
From: Arnd Bergmann @ 2009-03-27 20:53 UTC (permalink / raw)
To: Sam Ravnborg; +Cc: liqin.chen, linux-arch, linux-kernel, torvalds
On Friday 27 March 2009, Sam Ravnborg wrote:
> Thats strange indeed.
> This structure will then change layout depending on the target bit-size
> of the compiler.
>
> From x86:
> #ifdef __i386__
> unsigned long __unused1;
> #endif
> __kernel_time_t shm_dtime; /* last detach time */
> #ifdef __i386__
> unsigned long __unused2;
> #endif
>
> long is 64 bit in one case and 32 bit in another case.
> I'm confused..
The idea here is to have the same layout for both by adding
long (32 bit) padding between 32 bit members on i386 and not
having the padding along the __kernel_time_t (which is also
long) members on x86_64. The problem is that some architectures
copying this didn't understand the part about the padding,
while others (big-endian ones) put the padding in the wrong
place by copying from i386.
By now, most of the existing architectures copied the i386
file, which is at least consistent and we've learned to
deal with it. I recommend just using this one as the
asm-generic version and letting all new archs fall back
to that.
> I would expect it to be safer to be bit-size neutral in our
> exported headers.
> But the score people know there userlend best so let them decide.
> Still they should audit all their exported headers.
> They cannot assume it was right because they copied them from
> somewhere.
Yes, I agree. Hopefully I'll manage to get my patches into
shape to post the generic versions in the next days so we can use
them on microblaze and score as well as all future versions.
Arnd <><
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 20:53 ` Arnd Bergmann
@ 2009-03-27 21:22 ` Sam Ravnborg
2009-03-29 13:46 ` Michal Simek
2009-03-30 2:25 ` liqin.chen
1 sibling, 1 reply; 8+ messages in thread
From: Sam Ravnborg @ 2009-03-27 21:22 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: liqin.chen, linux-arch, linux-kernel, torvalds
>
> Yes, I agree. Hopefully I'll manage to get my patches into
> shape to post the generic versions in the next days so we can use
> them on microblaze and score as well as all future versions.
That would be gret.
And I need to take a critical look at the patch from Remis Lima Baima -
this would help those guys too.
Sam
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 21:22 ` Sam Ravnborg
@ 2009-03-29 13:46 ` Michal Simek
0 siblings, 0 replies; 8+ messages in thread
From: Michal Simek @ 2009-03-29 13:46 UTC (permalink / raw)
To: Sam Ravnborg
Cc: Arnd Bergmann, liqin.chen, linux-arch, linux-kernel, torvalds
Sam Ravnborg wrote:
>> Yes, I agree. Hopefully I'll manage to get my patches into
>> shape to post the generic versions in the next days so we can use
>> them on microblaze and score as well as all future versions.
>>
>
> That would be gret.
> And I need to take a critical look at the patch from Remis Lima Baima -
> this would help those guys too.
>
yes. I am open to it too. We can clean it and I'll test it and create
new toolchain for it too.
I hope we can reach generic solution which can be pattern for another archs.
Thanks,
Michal
P.S.: I am at LKML but please cc me (the best monstr@monstr.eu) for
every discuss around microblaze.
> Sam
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--
Michal Simek, Ing. (M.Eng)
PetaLogix - Linux Solutions for a Reconfigurable World
w: www.petalogix.com p: +61-7-30090663,+42-0-721842854 f: +61-7-30090663
^ permalink raw reply [flat|nested] 8+ messages in thread
* Re: [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor
2009-03-27 20:53 ` Arnd Bergmann
2009-03-27 21:22 ` Sam Ravnborg
@ 2009-03-30 2:25 ` liqin.chen
1 sibling, 0 replies; 8+ messages in thread
From: liqin.chen @ 2009-03-30 2:25 UTC (permalink / raw)
To: Arnd Bergmann, Sam Ravnborg, Thomas Gleixner, Kyle McMartin
Cc: linux-arch, linux-kernel, torvalds
Hi tglx, Arnd, Kyle and Sam,
Thank you for your kindly reply, I will update
the code according to your comments.
The fixed patches will be sent out soon.
--
Best regards
Liqin
liqin.chen@sunplusct.com
Arnd Bergmann <arnd@arndb.de> 写于 2009-03-28 04:53:05:
> On Friday 27 March 2009, Sam Ravnborg wrote:
>
> > Thats strange indeed.
> > This structure will then change layout depending on the target
bit-size
> > of the compiler.
> >
> > From x86:
> > #ifdef __i386__
> > unsigned long __unused1;
> > #endif
> > __kernel_time_t shm_dtime; /* last detach time */
> > #ifdef __i386__
> > unsigned long __unused2;
> > #endif
> >
> > long is 64 bit in one case and 32 bit in another case.
> > I'm confused..
>
> The idea here is to have the same layout for both by adding
> long (32 bit) padding between 32 bit members on i386 and not
> having the padding along the __kernel_time_t (which is also
> long) members on x86_64. The problem is that some architectures
> copying this didn't understand the part about the padding,
> while others (big-endian ones) put the padding in the wrong
> place by copying from i386.
>
> By now, most of the existing architectures copied the i386
> file, which is at least consistent and we've learned to
> deal with it. I recommend just using this one as the
> asm-generic version and letting all new archs fall back
> to that.
>
> > I would expect it to be safer to be bit-size neutral in our
> > exported headers.
> > But the score people know there userlend best so let them decide.
>
> > Still they should audit all their exported headers.
> > They cannot assume it was right because they copied them from
> > somewhere.
>
> Yes, I agree. Hopefully I'll manage to get my patches into
> shape to post the generic versions in the next days so we can use
> them on microblaze and score as well as all future versions.
>
> Arnd <><
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2009-03-30 2:28 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-03-27 1:37 [PATCH 5/13] score - New architecure port to SunplusCT S+CORE processor liqin.chen
2009-03-27 18:40 ` Sam Ravnborg
2009-03-27 19:19 ` Arnd Bergmann
2009-03-27 20:26 ` Sam Ravnborg
2009-03-27 20:53 ` Arnd Bergmann
2009-03-27 21:22 ` Sam Ravnborg
2009-03-29 13:46 ` Michal Simek
2009-03-30 2:25 ` liqin.chen
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