mozilla on the Indy

It builds.
It links (now that Alex made lesstif go, and I fixed up xpm). It crashes very early in the startup.

I think it's probably something in the NSPR thread initialization, but I'll have to build some test stuff to be sure. The files I've changed that matter (not Makefiles and link lines, but actual source) are attached, and are the likely source of my problems. Since the final mostly-static link takes about 40 minutes, experimentation is expensive.

I'm also taking donations of gdb.

Mike

73275.46 64180.31

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/

#ifndef nspr_cpucfg___
#define nspr_cpucfg___

#ifndef XP_UNIX
#define XP_UNIX
#endif

#ifndef LINUX
#define LINUX
#endif

#ifdef __powerpc__

#undef IS_LITTLE_ENDIAN
#define IS_BIG_ENDIAN 1

#define PR_BYTES_PER_BYTE   1
#define PR_BYTES_PER_SHORT  2
#define PR_BYTES_PER_INT    4
#define PR_BYTES_PER_INT64  8
#define PR_BYTES_PER_LONG   4
#define PR_BYTES_PER_FLOAT  4

#define PR_BYTES_PER_DOUBLE 8
#define PR_BYTES_PER_WORD 4
#define PR_BYTES_PER_DWORD 8

#define PR_BITS_PER_BYTE    8
#define PR_BITS_PER_SHORT   16
#define PR_BITS_PER_INT     32
#define PR_BITS_PER_INT64   64
#define PR_BITS_PER_LONG    32
#define PR_BITS_PER_FLOAT   32
#define PR_BITS_PER_DOUBLE  64
#define PR_BITS_PER_WORD    32

#define PR_BITS_PER_BYTE_LOG2   3
#define PR_BITS_PER_SHORT_LOG2  4
#define PR_BITS_PER_INT_LOG2    5
#define PR_BITS_PER_INT64_LOG2  6
#define PR_BITS_PER_LONG_LOG2   5
#define PR_BITS_PER_FLOAT_LOG2  5

#define PR_BITS_PER_DOUBLE_LOG2 6
#define PR_BITS_PER_WORD_LOG2 5

#define PR_ALIGN_OF_SHORT   2
#define PR_ALIGN_OF_INT     4
#define PR_ALIGN_OF_LONG    4
#define PR_ALIGN_OF_INT64   4
#define PR_ALIGN_OF_FLOAT   4
#define PR_ALIGN_OF_DOUBLE  4

#define PR_ALIGN_OF_POINTER 4

#define PR_BYTES_PER_WORD_LOG2 2
#define PR_BYTES_PER_DWORD_LOG2 3

#elif defined(__alpha)

#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#define IS_64

#define PR_BYTES_PER_BYTE   1
#define PR_BYTES_PER_SHORT  2
#define PR_BYTES_PER_INT    4
#define PR_BYTES_PER_INT64  8
#define PR_BYTES_PER_LONG   8
#define PR_BYTES_PER_FLOAT  4

#define PR_BYTES_PER_DOUBLE 8
#define PR_BYTES_PER_WORD 8
#define PR_BYTES_PER_DWORD 8

#define PR_BITS_PER_BYTE    8
#define PR_BITS_PER_SHORT   16
#define PR_BITS_PER_INT     32
#define PR_BITS_PER_INT64   64
#define PR_BITS_PER_LONG    64
#define PR_BITS_PER_FLOAT   32
#define PR_BITS_PER_DOUBLE  64
#define PR_BITS_PER_WORD    64

#define PR_BITS_PER_BYTE_LOG2   3
#define PR_BITS_PER_SHORT_LOG2  4
#define PR_BITS_PER_INT_LOG2    5
#define PR_BITS_PER_INT64_LOG2  6
#define PR_BITS_PER_LONG_LOG2   6
#define PR_BITS_PER_FLOAT_LOG2  5

#define PR_BITS_PER_DOUBLE_LOG2 6
#define PR_BITS_PER_WORD_LOG2 6

#define PR_ALIGN_OF_SHORT   2
#define PR_ALIGN_OF_INT     4
#define PR_ALIGN_OF_LONG    8
#define PR_ALIGN_OF_INT64   8
#define PR_ALIGN_OF_FLOAT   4
#define PR_ALIGN_OF_DOUBLE  8

#define PR_ALIGN_OF_POINTER 8

#define PR_BYTES_PER_WORD_LOG2 3
#define PR_BYTES_PER_DWORD_LOG2 3

#elif defined(__mc68000__)

#undef IS_LITTLE_ENDIAN
#define IS_BIG_ENDIAN 1

#define PR_BYTES_PER_BYTE   1
#define PR_BYTES_PER_SHORT  2
#define PR_BYTES_PER_INT    4
#define PR_BYTES_PER_INT64  8
#define PR_BYTES_PER_LONG   4
#define PR_BYTES_PER_FLOAT  4

#define PR_BYTES_PER_DOUBLE 8
#define PR_BYTES_PER_WORD 4
#define PR_BYTES_PER_DWORD 8

#define PR_BITS_PER_BYTE    8
#define PR_BITS_PER_SHORT   16
#define PR_BITS_PER_INT     32
#define PR_BITS_PER_INT64   64
#define PR_BITS_PER_LONG    32
#define PR_BITS_PER_FLOAT   32
#define PR_BITS_PER_DOUBLE  64
#define PR_BITS_PER_WORD    32

#define PR_BITS_PER_BYTE_LOG2   3
#define PR_BITS_PER_SHORT_LOG2  4
#define PR_BITS_PER_INT_LOG2    5
#define PR_BITS_PER_INT64_LOG2  6
#define PR_BITS_PER_LONG_LOG2   5
#define PR_BITS_PER_FLOAT_LOG2  5

#define PR_BITS_PER_DOUBLE_LOG2 6
#define PR_BITS_PER_WORD_LOG2 5

#define PR_ALIGN_OF_SHORT   2
#define PR_ALIGN_OF_INT     2
#define PR_ALIGN_OF_LONG    2
#define PR_ALIGN_OF_INT64   2
#define PR_ALIGN_OF_FLOAT   2
#define PR_ALIGN_OF_DOUBLE  2

#define PR_ALIGN_OF_POINTER 2

#define PR_BYTES_PER_WORD_LOG2 2
#define PR_BYTES_PER_DWORD_LOG2 3

#elif defined(__sparc__)

#undef IS_LITTLE_ENDIAN
#define IS_BIG_ENDIAN 1

#define PR_BYTES_PER_BYTE   1
#define PR_BYTES_PER_SHORT  2
#define PR_BYTES_PER_INT    4
#define PR_BYTES_PER_INT64  8
#define PR_BYTES_PER_LONG   4
#define PR_BYTES_PER_FLOAT  4

#define PR_BYTES_PER_DOUBLE 8
#define PR_BYTES_PER_WORD 4
#define PR_BYTES_PER_DWORD 8

#define PR_BITS_PER_BYTE    8
#define PR_BITS_PER_SHORT   16
#define PR_BITS_PER_INT     32
#define PR_BITS_PER_INT64   64
#define PR_BITS_PER_LONG    32
#define PR_BITS_PER_FLOAT   32
#define PR_BITS_PER_DOUBLE  64
#define PR_BITS_PER_WORD    32

#define PR_BITS_PER_BYTE_LOG2   3
#define PR_BITS_PER_SHORT_LOG2  4
#define PR_BITS_PER_INT_LOG2    5
#define PR_BITS_PER_INT64_LOG2  6
#define PR_BITS_PER_LONG_LOG2   5
#define PR_BITS_PER_FLOAT_LOG2  5

#define PR_BITS_PER_DOUBLE_LOG2 6
#define PR_BITS_PER_WORD_LOG2 5

#define PR_ALIGN_OF_SHORT   2
#define PR_ALIGN_OF_INT     4
#define PR_ALIGN_OF_LONG    4
#define PR_ALIGN_OF_INT64   8
#define PR_ALIGN_OF_FLOAT   4
#define PR_ALIGN_OF_DOUBLE  8

#define PR_ALIGN_OF_POINTER 4

#define PR_BYTES_PER_WORD_LOG2 2
#define PR_BYTES_PER_DWORD_LOG2 3

#elif defined(__i386__)

#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN

#define PR_BYTES_PER_BYTE   1
#define PR_BYTES_PER_SHORT  2
#define PR_BYTES_PER_INT    4
#define PR_BYTES_PER_INT64  8
#define PR_BYTES_PER_LONG   4
#define PR_BYTES_PER_FLOAT  4

#define PR_BYTES_PER_DOUBLE 8
#define PR_BYTES_PER_WORD 4
#define PR_BYTES_PER_DWORD 8

#define PR_BITS_PER_BYTE    8
#define PR_BITS_PER_SHORT   16
#define PR_BITS_PER_INT     32
#define PR_BITS_PER_INT64   64
#define PR_BITS_PER_LONG    32
#define PR_BITS_PER_FLOAT   32
#define PR_BITS_PER_DOUBLE  64
#define PR_BITS_PER_WORD    32

#define PR_BITS_PER_BYTE_LOG2   3
#define PR_BITS_PER_SHORT_LOG2  4
#define PR_BITS_PER_INT_LOG2    5
#define PR_BITS_PER_INT64_LOG2  6
#define PR_BITS_PER_LONG_LOG2   5
#define PR_BITS_PER_FLOAT_LOG2  5

#define PR_BITS_PER_DOUBLE_LOG2 6
#define PR_BITS_PER_WORD_LOG2 5

#define PR_ALIGN_OF_SHORT   2
#define PR_ALIGN_OF_INT     4
#define PR_ALIGN_OF_LONG    4
#define PR_ALIGN_OF_INT64   4
#define PR_ALIGN_OF_FLOAT   4
#define PR_ALIGN_OF_DOUBLE  4

#define PR_ALIGN_OF_POINTER 4

#define PR_BYTES_PER_WORD_LOG2 2
#define PR_BYTES_PER_DWORD_LOG2 3

#elif defined(__mips__)

#ifdef __MIPSEB__
#define IS_BIG_ENDIAN 1
#undef IS_LITTLE_ENDIAN
#elif defined(__MIPSEL__
#define IS_LITTLE_ENDIAN 1
#undef IS_BIG_ENDIAN
#else
#error "Unknown MIPS endianness."
#endif

#define PR_BYTES_PER_BYTE   1
#define PR_BYTES_PER_SHORT  2
#define PR_BYTES_PER_INT    4
#define PR_BYTES_PER_INT64  8
#define PR_BYTES_PER_LONG   4
#define PR_BYTES_PER_FLOAT  4

#define PR_BYTES_PER_DOUBLE 8
#define PR_BYTES_PER_WORD 4
#define PR_BYTES_PER_DWORD 8

#define PR_BITS_PER_BYTE    8
#define PR_BITS_PER_SHORT   16
#define PR_BITS_PER_INT     32
#define PR_BITS_PER_INT64   64
#define PR_BITS_PER_LONG    32
#define PR_BITS_PER_FLOAT   32
#define PR_BITS_PER_DOUBLE  64
#define PR_BITS_PER_WORD    32

#define PR_BITS_PER_BYTE_LOG2   3
#define PR_BITS_PER_SHORT_LOG2  4
#define PR_BITS_PER_INT_LOG2    5
#define PR_BITS_PER_INT64_LOG2  6
#define PR_BITS_PER_LONG_LOG2   5
#define PR_BITS_PER_FLOAT_LOG2  5

#define PR_BITS_PER_DOUBLE_LOG2 6
#define PR_BITS_PER_WORD_LOG2 5

#define PR_ALIGN_OF_SHORT   2
#define PR_ALIGN_OF_INT     4
#define PR_ALIGN_OF_LONG    4
#define PR_ALIGN_OF_INT64   4
#define PR_ALIGN_OF_FLOAT   4
#define PR_ALIGN_OF_DOUBLE  4

#define PR_ALIGN_OF_POINTER 4

#define PR_BYTES_PER_WORD_LOG2 2
#define PR_BYTES_PER_DWORD_LOG2 3

#else
#error "Unknown CPU architecture"

#endif

#define HAVE_LONG_LONG
/*
* XXX These two macros need to be investigated for different architectures. */
#undef HAVE_ALIGNED_DOUBLES
#undef HAVE_ALIGNED_LONGLONGS

#ifndef NO_NSPR_10_SUPPORT

#define BYTES_PER_BYTE PR_BYTES_PER_BYTE
#define BYTES_PER_SHORT PR_BYTES_PER_SHORT
#define BYTES_PER_INT PR_BYTES_PER_INT
#define BYTES_PER_INT64 PR_BYTES_PER_INT64
#define BYTES_PER_LONG PR_BYTES_PER_LONG
#define BYTES_PER_FLOAT PR_BYTES_PER_FLOAT
#define BYTES_PER_DOUBLE PR_BYTES_PER_DOUBLE
#define BYTES_PER_WORD PR_BYTES_PER_WORD
#define BYTES_PER_DWORD PR_BYTES_PER_DWORD

#define BITS_PER_BYTE PR_BITS_PER_BYTE
#define BITS_PER_SHORT PR_BITS_PER_SHORT
#define BITS_PER_INT PR_BITS_PER_INT
#define BITS_PER_INT64 PR_BITS_PER_INT64
#define BITS_PER_LONG PR_BITS_PER_LONG
#define BITS_PER_FLOAT PR_BITS_PER_FLOAT
#define BITS_PER_DOUBLE PR_BITS_PER_DOUBLE
#define BITS_PER_WORD PR_BITS_PER_WORD

#define BITS_PER_BYTE_LOG2 PR_BITS_PER_BYTE_LOG2
#define BITS_PER_SHORT_LOG2 PR_BITS_PER_SHORT_LOG2
#define BITS_PER_INT_LOG2 PR_BITS_PER_INT_LOG2
#define BITS_PER_INT64_LOG2 PR_BITS_PER_INT64_LOG2
#define BITS_PER_LONG_LOG2 PR_BITS_PER_LONG_LOG2
#define BITS_PER_FLOAT_LOG2 PR_BITS_PER_FLOAT_LOG2
#define BITS_PER_DOUBLE_LOG2 PR_BITS_PER_DOUBLE_LOG2
#define BITS_PER_WORD_LOG2 PR_BITS_PER_WORD_LOG2

#define ALIGN_OF_SHORT PR_ALIGN_OF_SHORT
#define ALIGN_OF_INT PR_ALIGN_OF_INT
#define ALIGN_OF_LONG PR_ALIGN_OF_LONG
#define ALIGN_OF_INT64 PR_ALIGN_OF_INT64
#define ALIGN_OF_FLOAT PR_ALIGN_OF_FLOAT
#define ALIGN_OF_DOUBLE PR_ALIGN_OF_DOUBLE
#define ALIGN_OF_POINTER PR_ALIGN_OF_POINTER
#define ALIGN_OF_WORD PR_ALIGN_OF_WORD

#define BYTES_PER_WORD_LOG2 PR_BYTES_PER_WORD_LOG2
#define BYTES_PER_DWORD_LOG2 PR_BYTES_PER_DWORD_LOG2
#define WORDS_PER_DWORD_LOG2 PR_WORDS_PER_DWORD_LOG2

#endif /* NO_NSPR_10_SUPPORT */

#endif /* nspr_cpucfg___ */

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/

#ifndef nspr_linux_defs_h___
#define nspr_linux_defs_h___

#include "prthread.h"

/*
* Internal configuration macros
*/

#define PR_LINKER_ARCH "linux"
#define _PR_SI_SYSNAME "LINUX"
#ifdef __powerpc__
#define _PR_SI_ARCHITECTURE "ppc"
#elif defined(__alpha)
#define _PR_SI_ARCHITECTURE "alpha"
#elif defined(__mc68000__)
#define _PR_SI_ARCHITECTURE "m68k"
#elif defined(__sparc__)
#define _PR_SI_ARCHITECTURE "sparc"
#elif defined(__i386__)
#define _PR_SI_ARCHITECTURE "x86"
#elif defined(__mips__)
#define _PR_SI_ARCHITECTURE "mips"
#else
#error "Unknown CPU architecture"
#endif
#define PR_DLL_SUFFIX ".so"

#define _PR_VMBASE 0x30000000
#define _PR_STACK_VMBASE 0x50000000
#define _MD_DEFAULT_STACK_SIZE 65536L
#define _MD_MMAP_FLAGS MAP_PRIVATE

#undef HAVE_STACK_GROWING_UP

/*
* Elf linux supports dl* functions
*/
#define HAVE_DLL
#define USE_DLFCN

#if !defined(MKLINUX) && !defined(NEED_TIME_R)
#define NEED_TIME_R
#endif

#define USE_SETJMP

#ifdef _PR_PTHREADS

extern void _MD_CleanupBeforeExit(void); #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit

#else /* ! _PR_PTHREADS */

#include <setjmp.h>

#define PR_CONTEXT_TYPE sigjmp_buf

#define CONTEXT(_th) ((_th)->md.context)

#ifdef __powerpc__
/* PowerPC based MkLinux */
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__misc[0] #define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) ((void *) 0)
/* aix = 64, macos = 70 */
#define PR_NUM_GCREGS 64

#elif defined(__alpha)
/* Alpha based Linux */

#if defined(__GLIBC__) && __GLIBC__ >= 2
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP] #define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) #define _MD_GET_FP_PTR(_t) ((void *) 0)
#define _MD_SP_TYPE long int
#else
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp #define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) #define _MD_GET_FP_PTR(_t) ((void *) 0)
#define _MD_SP_TYPE __ptr_t
#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */

/* XXX not sure if this is correct, or maybe it should be 17? */ #define PR_NUM_GCREGS 9

#elif defined(__mc68000__)
/* m68k based Linux */

/*
* On the m68k, glibc still uses the old style sigjmp_buf, even
* in glibc 2.0.7.
*/
#if defined(__GLIBC__) && __GLIBC__ >= 2
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp #define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) ((void *) 0)
#else
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp #define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) ((void *) 0)
#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */

/* XXX not sure if this is correct, or maybe it should be 17? */ #define PR_NUM_GCREGS 9

#elif defined(__sparc__)
/* Sparc */
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__fp #define _MD_SET_FP(_t, val)
#define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) #define _MD_GET_FP_PTR(_t) ((void *) 0)
#define _MD_SP_TYPE __ptr_t

#elif defined(__i386__)
/* Intel based Linux */
#if defined(__GLIBC__) && __GLIBC__ >= 2
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP] #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val) #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP]) #define _MD_SP_TYPE int
#else
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__bp = val) #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) &((_t)->md.context[0].__jmpbuf[0].__bp) #define _MD_SP_TYPE __ptr_t
#endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
#define PR_NUM_GCREGS 6

#elif defined(__mips)
/* Linux/MIPS */
#if defined(__GLIBC__) && __GLIBC__ >= 2
#define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__fp = val) #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t))
#define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__fp) #define _MD_SP_TYPE __ptr_t
#else
#error "Linux/MIPS pre glibc2 not supported yet (hack away!)" #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */
#else

#error "Unknown CPU architecture"

#endif /*__powerpc__*/

/*
** Initialize a thread context to run "_main()" when started */
#ifdef __powerpc__

#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \

{  \
    *status = PR_TRUE;  \
    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
        _main();  \
    }  \
    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 128); \
	_thread->md.sp = _MD_GET_SP_PTR(_thread); \
	_thread->md.fp = _MD_GET_FP_PTR(_thread); \
    _MD_SET_FP(_thread, 0); \
}

#else

#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \

{  \
    *status = PR_TRUE;  \
    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
        _main();  \
    }  \
    _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \
	_thread->md.sp = _MD_GET_SP_PTR(_thread); \
	_thread->md.fp = _MD_GET_FP_PTR(_thread); \
    _MD_SET_FP(_thread, 0); \
}

#endif /*__powerpc__*/

#define _MD_SWITCH_CONTEXT(_thread)  \
    if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
	(_thread)->md.errcode = errno;  \
	_PR_Schedule();  \
    }

/*
** Restore a thread context, saved by _MD_SWITCH_CONTEXT */
#define _MD_RESTORE_CONTEXT(_thread) \

{   \
    errno = (_thread)->md.errcode;  \
    _MD_SET_CURRENT_THREAD(_thread);  \
    siglongjmp(CONTEXT(_thread), 1);  \
}

/* Machine-dependent (MD) data structures */

struct _MDThread {
    PR_CONTEXT_TYPE context;
	void *sp;
	void *fp;
    int id;
    int errcode;
};

struct _MDThreadStack {
    PRInt8 notused;
};

struct _MDLock {
    PRInt8 notused;
};

struct _MDSemaphore {
    PRInt8 notused;
};

struct _MDCVar {
    PRInt8 notused;
};

struct _MDSegment {
    PRInt8 notused;
};

struct _MDCPU {
	struct _MDCPU_Unix md_unix;
};

#define _MD_INIT_LOCKS()
#define _MD_NEW_LOCK(lock) PR_SUCCESS
#define _MD_FREE_LOCK(lock)
#define _MD_LOCK(lock)
#define _MD_UNLOCK(lock)
#define _MD_INIT_IO()
#define _MD_IOQ_LOCK()
#define _MD_IOQ_UNLOCK()

extern PRStatus _MD_InitializeThread(PRThread *thread);

#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
#define _MD_INIT_THREAD _MD_InitializeThread
#define _MD_EXIT_THREAD(thread)
#define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread
#define _MD_RESUME_THREAD(thread) _MD_resume_thread
#define _MD_CLEAN_THREAD(_thread)

extern PRStatus _MD_CREATE_THREAD(

    PRThread *thread,
    void (*start) (void *),
    PRThreadPriority priority,
    PRThreadScope scope,
    PRThreadState state,
    PRUint32 stackSize);

extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri); extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout); extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
extern void _MD_YIELD(void);

#endif /* ! _PR_PTHREADS */

extern void _MD_EarlyInit(void);
extern PRIntervalTime _PR_UNIX_GetInterval(void); extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);

#define _MD_EARLY_INIT _MD_EarlyInit
#define _MD_FINAL_INIT _PR_UnixInit
#define _MD_GET_INTERVAL _PR_UNIX_GetInterval
#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond

/*
* We wrapped the select() call. _MD_SELECT refers to the built-in,
* unwrapped version.
*/
#define _MD_SELECT __select

#ifdef _PR_POLL_AVAILABLE
#include <poll.h>
extern int __syscall_poll(struct pollfd *ufds, unsigned long int nfds,

	int timeout);

#define _MD_POLL __syscall_poll
#endif

/* For writev() */
#include <sys/uio.h>

#endif /* nspr_linux_defs_h___ */

Threads are broken, the attempt to create one will crash the process. On the to do list of things to be finished for Alex tomorrow.

ralf

Now that I've taken myself two minutes to browse your attached sources - the patches to the NSPR thread routines look suspicious. The are playing games with the frame pointer which at least on the first look don't make sense as gcc automatically enables -fomit-frame-pointer when optimizing.

Ralf

Turns out it's there only to save the FP so that you can use gdb to look at the NSPR thread stacks during debugging. So, the fact that gcc removes it when building optimized isn't a problem.

For the record, NSPR threads aren't clone() threads; they're setjmp/longjmp things.

Mike

517588.35 442847.89

Usless effort, on MIPS debugging works without having a frame pointer.

RalF

Look what I've found on my harddisk, I think you must be talking about this?

Current directory is /home/ralf
GNU gdb 4.17
Copyright 1998 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "mips-unknown-linux-gnu"...
(gdb) break main
Breakpoint 1 at 0x40092c: file c.c, line 5.
(gdb) run
Starting program: /ext/gdb-mips/c
Cannot insert breakpoint -2:
Temporarily disabling shared library breakpoints:
-2

Program received signal SIGTRAP, Trace/breakpoint trap. 0x0 in ?? () from /lib/ld.so.1
(gdb) bt
#0 0x0 in ?? () from /lib/ld.so.1
#1 0x400924 in main () at c.c:4
(gdb)

A patch against the vanilla FSF gdb is appended. Use it, test it, tell me what's broken in it. You'll also need to apply a patch to the kernel include file <asm/ptrace.h>, it's also appended. When testing think of it, it's crude first cut. Don't expect things to work to well.

(Somebody interested in bringing the remote kernel debugging support upto speed again?)

Ralf

diff -urN gdb-4.17.orig/bfd/config.bfd gdb-4.17/bfd/config.bfd
@@ -427,11 +427,13 @@
     ;;
   mips*el*-*-linux* | mips*el*-*-openbsd*)
     targ_defvec=bfd_elf32_littlemips_vec
-    targ_selvecs="bfd_elf32_bigmips_vec bfd_elf64_bigmips_vec bfd_elf64_littlemips_vec ecoff_little_vec ecoff_big_vec"
+    #targ_selvecs="bfd_elf32_bigmips_vec bfd_elf64_bigmips_vec bfd_elf64_littlemips_vec ecoff_little_vec ecoff_big_vec"
+    targ_selvecs="bfd_elf32_bigmips_vec ecoff_little_vec ecoff_big_vec"
     ;;
   mips*-*-linux* | mips*-*-openbsd*)
     targ_defvec=bfd_elf32_bigmips_vec
-    targ_selvecs="bfd_elf32_littlemips_vec bfd_elf64_bigmips_vec bfd_elf64_littlemips_vec ecoff_big_vec ecoff_little_vec"
+    #targ_selvecs="bfd_elf32_littlemips_vec bfd_elf64_bigmips_vec bfd_elf64_littlemips_vec ecoff_big_vec ecoff_little_vec"
+    targ_selvecs="bfd_elf32_littlemips_vec ecoff_big_vec ecoff_little_vec"
     ;;
 
   mn10200-*-*)

Binary files gdb-4.17.orig/gdb/.mipslinux-nat.c.swp and gdb-4.17/gdb/.mipslinux-nat.c.swp differ

diff -urN gdb-4.17.orig/gdb/config/mips/mips-linux.mh gdb-4.17/gdb/config/mips/mips-linux.mh
@@ -0,0 +1,8 @@
+# Host: Big-endian MIPS running Linux
+XDEPFILES=
+XM_FILE= xm-linux.h
+NAT_FILE= nm-linux.h
+NATDEPFILES= infptrace.o inftarg.o mipslinux-nat.o corelow.o core-regset.o fork-child.o solib.o
+
+MMALLOC =
+MMALLOC_CFLAGS = -DNO_MMALLOC

diff -urN gdb-4.17.orig/gdb/config/mips/mips-linux.mt gdb-4.17/gdb/config/mips/mips-linux.mt
@@ -0,0 +1,3 @@
+# Target: Big-endian MIPS
+TDEPFILES= mips-tdep.o
+TM_FILE= tm-linux.h

diff -urN gdb-4.17.orig/gdb/config/mips/tm-mips.h gdb-4.17/gdb/config/mips/tm-mips.h
@@ -121,8 +121,6 @@
 
 #define INNER_THAN <
 
-#define BIG_ENDIAN 4321
-
 /* Old-style breakpoint macros.
    The IDT board uses an unusual breakpoint value, and sometimes gets
    confused when it sees the usual MIPS breakpoint instruction.  */

diff -urN gdb-4.17.orig/gdb/config/mips/xm-linux.h gdb-4.17/gdb/config/mips/xm-linux.h
@@ -0,0 +1,33 @@
+/* Definitions for Linux/MIPS hosting support.
+
+Copyright (C) 1996 Free Software Foundation, Inc.
+
+Contributed by David S. Miller ([email protected]) at
+Rutgers University CAIP Research Center.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#if !defined (HOST_BYTE_ORDER)
+#define HOST_BYTE_ORDER BIG_ENDIAN
+#endif
+
+/* The mips has no siginterrupt routine. */
+#define NO_SIGINTERRUPT
+
+#define HAVE_TERMIOS
+#define HAVE_SIGSETMASK 1
+#define USG

diff -urN gdb-4.17.orig/gdb/configure.host gdb-4.17/gdb/configure.host
@@ -114,6 +114,7 @@
 # Close enough for now.
 mips-sgi-irix6*)	gdb_host=irix5 ;;
 mips-sony-*)		gdb_host=news-mips ;;
+mips-*-linux*)		gdb_host=mips-linux ;;
 mips-*-mach3*)		gdb_host=mipsm3 ;;
 mips-*-sysv4*)		gdb_host=mipsv4 ;;
 mips-*-sysv*)		gdb_host=riscos ;;

diff -urN gdb-4.17.orig/gdb/configure.tgt gdb-4.17/gdb/configure.tgt
@@ -187,6 +187,7 @@
 mips*-sgi-irix6*)	gdb_target=irix5 ;;
 mips*-sgi-*)		gdb_target=irix3 ;;
 mips*-sony-*)		gdb_target=bigmips ;;
+mips*-*-linux*)		gdb_target=mips-linux ;;
 mips*-*-mach3*)		gdb_target=mipsm3 ;;
 mips*-*-sysv4*)		gdb_target=mipsv4 ;;
 mips*-*-sysv*)		gdb_target=bigmips ;;

diff -urN gdb-4.17.orig/gdb/mips-nat.c gdb-4.17/gdb/mips-nat.c
@@ -1,4 +1,4 @@
-/* Low level DECstation interface to ptrace, for GDB when running native.
+/* Low level Linux & DECstation interface to ptrace, for GDB when running native.
    Copyright 1988, 1989, 1991, 1992, 1995 Free Software Foundation, Inc.
    Contributed by Alessandro Forin([email protected]) at CMU
    and by Per Bothner([email protected]) at U.Wisconsin.

@@ -23,6 +23,10 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include <sys/ptrace.h>
+#ifdef __linux__
+# include <asm/reg.h>
+# include <mips/ptrace.h>
+#endif
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/user.h>

diff -urN linux-2.0.30.orig/include/asm-mips/ptrace.h linux-2.0.30/include/asm-mips/ptrace.h
@@ -15,6 +15,14 @@
 
 #include <linux/types.h>
 
+#define PC		0
+#define CAUSE		1
+#define MMLO		3
+#define MMHI		4
+#define FPC_CSR		5	/* XXX */
+#define FPC_EIR		4	/* XXX */
+#define FPR_BASE	5	/* XXX */
+
 #ifndef __ASSEMBLY__
 /*
  * This struct defines the way the registers are stored on the stack during a

@@ -59,6 +67,6 @@
 extern void (*show_regs)(struct pt_regs *);
 #endif /* !(__ASSEMBLY__) */
 
-#endif
+#endif /* __KERNEL__ */
 
 #endif /* __ASM_MIPS_PTRACE_H */