Differences From Artifact [b7ec6b10d5]:

To Artifact [33a17f0c6f]:


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/* Trampoline construction */

/*
 * Copyright 1995-1999, 2001-2004 Bruno Haible, <bruno@clisp.org>
 *
 * This is free software distributed under the GNU General Public Licence
 * described in the file COPYING. Contact the author if you don't have this
 * or can't live with it. There is ABSOLUTELY NO WARRANTY, explicit or implied,
 * on this software.
 */


#include "config.h"
#include "trampoline_r.h"

#if defined(__hppa__)
#if 0
#define __hppaold__  /* Old trampoline, real machine code. */
#else
#define __hppanew__  /* New trampoline, just a closure. */
#endif
#endif
#if defined(__rs6000__)
#if defined(__NetBSD__)
#define __rs6000netbsd__
#else
#if !defined(_AIX)
#define __rs6000sysv4__  /* SysV.4 ABI, real machine code. */
#else
#define __rs6000aix__  /* AIX ABI, just a closure. */
#endif
#endif



#endif
#if defined(__hppanew__)
/*
 * A function pointer is a biased pointer to a data area whose first word
 * contains the actual address of the function.
 */
extern void tramp_r (); /* trampoline prototype */
/* We don't need to take any special measures to make the code executable
 * since the actual instructions are in the text segment.
 */
#ifndef CODE_EXECUTABLE
#define CODE_EXECUTABLE
#endif
#endif
#if defined(__rs6000aix__) || defined(__ia64__)
/*
 * A function pointer is a pointer to a data area whose first word contains
 * the actual address of the function.
 */
extern void (*tramp_r) (); /* trampoline prototype */
/* We don't need to take any special measures to make the code executable
 * since the actual instructions are in the text segment.



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/* Trampoline construction */

/*
 * Copyright 1995-1999, 2001-2006 Bruno Haible, <bruno@clisp.org>
 *
 * This is free software distributed under the GNU General Public Licence
 * described in the file COPYING. Contact the author if you don't have this
 * or can't live with it. There is ABSOLUTELY NO WARRANTY, explicit or implied,
 * on this software.
 */


#include "config.h"
#include "trampoline_r.h"

#if defined(__hppa__)
#if 0
#define __hppaold__  /* Old trampoline, real machine code. */
#else
#define __hppanew__  /* New trampoline, just a closure. */
#endif
#endif
#if defined(__powerpc__) && !defined(__powerpc64__)



#if !defined(_AIX)
#define __powerpcsysv4__  /* SysV.4 ABI, real machine code. */
#else
#define __powerpcaix__  /* AIX ABI, just a closure. */
#endif
#endif
#if defined(__powerpc64__)
/* The only ABI on powerpc64 known so far is the AIX ABI. */
#define __powerpc64aix__  /* AIX ABI, just a closure. */
#endif
#if defined(__hppanew__)
/*
 * A function pointer is a biased pointer to a data area whose first word
 * contains the actual address of the function.
 */
extern void tramp_r (); /* trampoline prototype */
/* We don't need to take any special measures to make the code executable
 * since the actual instructions are in the text segment.
 */
#ifndef CODE_EXECUTABLE
#define CODE_EXECUTABLE
#endif
#endif
#if defined(__powerpcaix__) || defined(__powerpc64aix__) || defined(__ia64__)
/*
 * A function pointer is a pointer to a data area whose first word contains
 * the actual address of the function.
 */
extern void (*tramp_r) (); /* trampoline prototype */
/* We don't need to take any special measures to make the code executable
 * since the actual instructions are in the text segment.
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#include <unistd.h>
#endif

/* Declare getpagesize(). */
#ifdef HAVE_GETPAGESIZE
#ifdef __cplusplus
extern "C" RETGETPAGESIZETYPE getpagesize (void);
#elif defined(__STDC__)
extern RETGETPAGESIZETYPE getpagesize (void);
#else
extern RETGETPAGESIZETYPE getpagesize ();
#endif
#else
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#else
/* Not Unix, e.g. mingw32 */
#define PAGESIZE 4096







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#include <unistd.h>
#endif

/* Declare getpagesize(). */
#ifdef HAVE_GETPAGESIZE
#ifdef __cplusplus
extern "C" RETGETPAGESIZETYPE getpagesize (void);


#else
extern RETGETPAGESIZETYPE getpagesize (void);
#endif
#else
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#else
/* Not Unix, e.g. mingw32 */
#define PAGESIZE 4096
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#endif

/* Declare open(). */
#ifdef EXECUTABLE_VIA_MMAP_DEVZERO
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#ifdef OPEN_NEEDS_SYS_FILE_H
#include <sys/file.h>
#endif
#endif

/* Declare shmget(), shmat(), shmctl(). */
#ifdef EXECUTABLE_VIA_SHM
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>







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#endif

/* Declare open(). */
#ifdef EXECUTABLE_VIA_MMAP_DEVZERO
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>



#endif

/* Declare shmget(), shmat(), shmctl(). */
#ifdef EXECUTABLE_VIA_SHM
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
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#endif
#endif
#endif
#ifdef __m88k__
#include <sys/syslocal.h>
#endif
/* Inline assembly function for instruction cache flush. */
#if defined(__sparc__) || defined(__sparc64__) || defined(__alpha__) || defined(__hppaold__) || defined(__rs6000sysv4__) || defined(__rs6000netbsd__) || defined(__convex__)
#ifdef __GNUC__
extern inline
#if defined(__sparc__) || defined(__sparc64__)
#include "cache-sparc.c"
#endif
#ifdef __alpha__
#include "cache-alpha.c"
#endif
#ifdef __hppa__
#include "cache-hppa.c"
#endif
#ifdef __rs6000__
#include "cache-rs6000.c"
#endif
#ifdef __convex__
#include "cache-convex.c"
#endif
#else
#if defined(__sparc__) || defined(__sparc64__)
extern void __TR_clear_cache_4();







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#endif
#endif
#endif
#ifdef __m88k__
#include <sys/syslocal.h>
#endif
/* Inline assembly function for instruction cache flush. */
#if defined(__sparc__) || defined(__sparc64__) || defined(__alpha__) || defined(__hppaold__) || defined(__powerpcsysv4__) || defined(__convex__)
#ifdef __GNUC__
extern inline
#if defined(__sparc__) || defined(__sparc64__)
#include "cache-sparc.c"
#endif
#ifdef __alpha__
#include "cache-alpha.c"
#endif
#ifdef __hppa__
#include "cache-hppa.c"
#endif
#if defined(__powerpc__) && !defined(__powerpc64__)
#include "cache-powerpc.c"
#endif
#ifdef __convex__
#include "cache-convex.c"
#endif
#else
#if defined(__sparc__) || defined(__sparc64__)
extern void __TR_clear_cache_4();
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#define TRAMP_LENGTH 16
#define TRAMP_ALIGN 16  /* 4 for a i386, 16 for a i486 */
#endif
#ifdef __m68k__
#define TRAMP_LENGTH 14
#define TRAMP_ALIGN 16
#endif
#if defined(__mips__) && !defined(__mipsn32__)
#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
#ifdef __mipsn32__
#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
#ifdef __mips64old__
#define TRAMP_LENGTH 56
#define TRAMP_ALIGN 4
#endif







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#define TRAMP_LENGTH 16
#define TRAMP_ALIGN 16  /* 4 for a i386, 16 for a i486 */
#endif
#ifdef __m68k__
#define TRAMP_LENGTH 14
#define TRAMP_ALIGN 16
#endif
#if defined(__mips__) || defined(__mipsn32__) && !defined(__mips64__)




#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
#ifdef __mips64old__
#define TRAMP_LENGTH 56
#define TRAMP_ALIGN 4
#endif
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#endif
#ifdef __hppanew__
#define TRAMP_LENGTH 16
#define TRAMP_ALIGN 16
#define TRAMP_BIAS 2
#endif
#ifdef __arm__
#define TRAMP_LENGTH 32
#define TRAMP_ALIGN 4
#endif
#ifdef __rs6000sysv4__
#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
#ifdef __rs6000netbsd__
#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
#ifdef __rs6000aix__
#define TRAMP_LENGTH 20
#define TRAMP_ALIGN 4
#endif
#ifdef __m88k__
#define TRAMP_LENGTH 20
#define TRAMP_ALIGN 8
#endif
#ifdef __convex__
#define TRAMP_LENGTH 14







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#endif
#ifdef __hppanew__
#define TRAMP_LENGTH 16
#define TRAMP_ALIGN 16
#define TRAMP_BIAS 2
#endif
#ifdef __arm__
#define TRAMP_LENGTH 16
#define TRAMP_ALIGN 4
#endif
#ifdef __powerpcsysv4__
#define TRAMP_LENGTH 24
#define TRAMP_ALIGN 4
#endif
#ifdef __powerpcaix__
#define TRAMP_LENGTH 20
#define TRAMP_ALIGN 4
#endif
#ifdef __powerpc64aix__
#define TRAMP_LENGTH 40
#define TRAMP_ALIGN 8
#endif
#ifdef __m88k__
#define TRAMP_LENGTH 20
#define TRAMP_ALIGN 8
#endif
#ifdef __convex__
#define TRAMP_LENGTH 14
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/* AIX doesn't support mprotect() in malloc'ed memory. Must get pages of
 * memory with execute permission via mmap(). Then keep a free list of
 * free trampolines.
 */
static char* freelist = NULL;
#endif

#if defined(__STDC__) || defined(__GNUC__) || defined(__cplusplus)
__TR_function alloc_trampoline_r (__TR_function address, void* data0, void* data1)
#else
__TR_function alloc_trampoline_r (address, data0, data1)
  __TR_function address;
  void* data0;
  void* data1;
#endif
{
  char* function;
  char* data;

#if !defined(CODE_EXECUTABLE)
  static long pagesize = 0;
#if defined(EXECUTABLE_VIA_MMAP_DEVZERO)







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/* AIX doesn't support mprotect() in malloc'ed memory. Must get pages of
 * memory with execute permission via mmap(). Then keep a free list of
 * free trampolines.
 */
static char* freelist = NULL;
#endif


__TR_function alloc_trampoline_r (__TR_function address, void* data0, void* data1)






{
  char* function;
  char* data;

#if !defined(CODE_EXECUTABLE)
  static long pagesize = 0;
#if defined(EXECUTABLE_VIA_MMAP_DEVZERO)
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  /* 1. Allocate room */

#if !defined(CODE_EXECUTABLE) && !defined(EXECUTABLE_VIA_MPROTECT)
  /* Note: This memory allocation is not multithread-safe. We might need
   * to add special (platform dependent) code for locking.
   * Fortunately, most modern systems where multithread-safety matters
   * have EXECUTABLE_VIA_MPROTECT, and those which don't (AIX on rs6000 and
   * HP-UX on hppa) have CODE_EXECUTABLE. Thus no locking code is needed
   * for the moment.
   */
  if (freelist == NULL)
    { /* Get a new page. */
      char* page;
#ifdef EXECUTABLE_VIA_MMAP_ANONYMOUS







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  /* 1. Allocate room */

#if !defined(CODE_EXECUTABLE) && !defined(EXECUTABLE_VIA_MPROTECT)
  /* Note: This memory allocation is not multithread-safe. We might need
   * to add special (platform dependent) code for locking.
   * Fortunately, most modern systems where multithread-safety matters
   * have EXECUTABLE_VIA_MPROTECT, and those which don't (AIX on powerpc and
   * HP-UX on hppa) have CODE_EXECUTABLE. Thus no locking code is needed
   * for the moment.
   */
  if (freelist == NULL)
    { /* Get a new page. */
      char* page;
#ifdef EXECUTABLE_VIA_MMAP_ANONYMOUS
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  *(unsigned short *) (function + 6) == 0xE951
#define tramp_address(function)  \
  *(long *)  (function + 8) + (long) (function + 12)
#define tramp_data(function)  \
  *(long *)  (function + 2)
#endif
#ifdef __m68k__
















  /* function:
   *    movel #<data>,a0		20 7C <data>
   *    jmp <address>			4E F9 <address>
   *    nop				4E 71
   */
  *(short *) (function + 0) = 0x207C;
  *(long *)  (function + 2) = (long) data;
  *(short *) (function + 6) = 0x4EF9;
  *(long *)  (function + 8) = (long) address;
  *(short *) (function +12) = 0x4E71;
#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x207C && \
  *(unsigned short *) (function + 6) == 0x4EF9 && \
  *(unsigned short *) (function +12) == 0x4E71

#define tramp_address(function)  \
  *(long *)  (function + 8)
#define tramp_data(function)  \
  *(long *)  (function + 2)
#endif
#if defined(__mips__) && !defined(__mipsn32__)
  /* function:
   *    li $2,<data>&0xffff0000		3C 02 hi16(<data>)
   *    ori $2,$2,<data>&0xffff		34 42 lo16(<data>)
   *    li $25,<address>&0xffff0000	3C 19 hi16(<address>)
   *    ori $25,$25,<address>&0xffff	37 39 lo16(<address>)
   *    j $25				03 20 00 08
   *    nop				00 00 00 00
   */
  /* What about big endian / little endian ?? */
  *(short *) (function + 0) = 0x3C02;
  *(short *) (function + 2) = (unsigned long) data >> 16;
  *(short *) (function + 4) = 0x3442;
  *(short *) (function + 6) = (unsigned long) data & 0xffff;
  *(short *) (function + 8) = 0x3C19;
  *(short *) (function +10) = (unsigned long) address >> 16;
  *(short *) (function +12) = 0x3739;
  *(short *) (function +14) = (unsigned long) address & 0xffff;
  *(long *)  (function +16) = 0x03200008;
  *(long *)  (function +20) = 0x00000000;
#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x3C02 && \
  *(unsigned short *) (function + 4) == 0x3442 && \
  *(unsigned short *) (function + 8) == 0x3C19 && \
  *(unsigned short *) (function +12) == 0x3739 && \
  *(unsigned long *)  (function +16) == 0x03200008 && \
  *(unsigned long *)  (function +20) == 0x00000000
#define hilo(hiword,loword)  \
  (((unsigned long) (hiword) << 16) | (unsigned long) (loword))
#define tramp_address(function)  \
  hilo(*(unsigned short *) (function +10), *(unsigned short *) (function +14))
#define tramp_data(function)  \
  hilo(*(unsigned short *) (function + 2), *(unsigned short *) (function + 6))
#endif
#ifdef __mipsn32__
  /* function:
   *    lw $2,16($25)			8F 22 00 10
   *    lw $25,20($25)			8F 39 00 14
   *    j $25				03 20 00 08
   *    nop				00 00 00 00
   *    .word <data>			<data>
   *    .word <address>			<address>
   */
  /* What about big endian / little endian ?? */
  *(unsigned int *) (function + 0) = 0x8F220010;
  *(unsigned int *) (function + 4) = 0x8F390014;
  *(unsigned int *) (function + 8) = 0x03200008;
  *(unsigned int *) (function +12) = 0x00000000;
  *(unsigned int *) (function +16) = (unsigned int) data;
  *(unsigned int *) (function +20) = (unsigned int) address;
#define is_tramp(function)  \
  *(int *)          (function + 0) == 0x8F220010 && \
  *(int *)          (function + 4) == 0x8F390014 && \
  *(int *)          (function + 8) == 0x03200008 && \
  *(int *)          (function +12) == 0x00000000
#define tramp_address(function)  \
  *(unsigned int *) (function +20)
#define tramp_data(function)  \
  *(unsigned int *) (function +16)
#endif
#ifdef __mips64old__
  /* function:







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  *(unsigned short *) (function + 6) == 0xE951
#define tramp_address(function)  \
  *(long *)  (function + 8) + (long) (function + 12)
#define tramp_data(function)  \
  *(long *)  (function + 2)
#endif
#ifdef __m68k__
#ifdef __NetBSD__
  /* function:
   *    movel #<data>,a1		22 7C <data>
   *    jmp <address>			4E F9 <address>
   *    nop				4E 71
   */
  *(short *) (function + 0) = 0x227C;
  *(long *)  (function + 2) = (long) data;
  *(short *) (function + 6) = 0x4EF9;
  *(long *)  (function + 8) = (long) address;
  *(short *) (function +12) = 0x4E71;
#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x227C && \
  *(unsigned short *) (function + 6) == 0x4EF9 && \
  *(unsigned short *) (function +12) == 0x4E71
#else
  /* function:
   *    movel #<data>,a0		20 7C <data>
   *    jmp <address>			4E F9 <address>
   *    nop				4E 71
   */
  *(short *) (function + 0) = 0x207C;
  *(long *)  (function + 2) = (long) data;
  *(short *) (function + 6) = 0x4EF9;
  *(long *)  (function + 8) = (long) address;
  *(short *) (function +12) = 0x4E71;
#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x207C && \
  *(unsigned short *) (function + 6) == 0x4EF9 && \
  *(unsigned short *) (function +12) == 0x4E71
#endif
#define tramp_address(function)  \
  *(long *)  (function + 8)
#define tramp_data(function)  \
  *(long *)  (function + 2)
#endif
#if defined(__mips__) || defined(__mipsn32__) && !defined(__mips64__)


































  /* function:
   *    lw $2,16($25)			8F 22 00 10
   *    lw $25,20($25)			8F 39 00 14
   *    j $25				03 20 00 08
   *    nop				00 00 00 00
   *    .word <data>			<data>
   *    .word <address>			<address>
   */

  *(unsigned int *) (function + 0) = 0x8F220010;
  *(unsigned int *) (function + 4) = 0x8F390014;
  *(unsigned int *) (function + 8) = 0x03200008;
  *(unsigned int *) (function +12) = 0x00000000;
  *(unsigned int *) (function +16) = (unsigned int) data;
  *(unsigned int *) (function +20) = (unsigned int) address;
#define is_tramp(function)  \
  *(unsigned int *) (function + 0) == 0x8F220010 && \
  *(unsigned int *) (function + 4) == 0x8F390014 && \
  *(unsigned int *) (function + 8) == 0x03200008 && \
  *(unsigned int *) (function +12) == 0x00000000
#define tramp_address(function)  \
  *(unsigned int *) (function +20)
#define tramp_data(function)  \
  *(unsigned int *) (function +16)
#endif
#ifdef __mips64old__
  /* function:
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   *    ld $2,16($25)			DF 22 00 10
   *    ld $25,24($25)			DF 39 00 18
   *    j $25				03 20 00 08
   *    nop				00 00 00 00
   *    .dword <data>			<data>
   *    .dword <address>		<address>
   */
  /* What about big endian / little endian ?? */
  *(long *)          (function + 0) = 0xDF220010DF390018L;

  *(long *)          (function + 8) = 0x0320000800000000L;

  *(unsigned long *) (function +16) = (unsigned long) data;
  *(unsigned long *) (function +24) = (unsigned long) address;
#define is_tramp(function)  \
  *(long *)          (function + 0) == 0xDF220010DF390018L && \

  *(long *)          (function + 8) == 0x0320000800000000L

#define tramp_address(function)  \
  *(unsigned long *) (function +24)
#define tramp_data(function)  \
  *(unsigned long *) (function +16)
#endif
#if defined(__sparc__) && !defined(__sparc64__)
  /* function:







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   *    ld $2,16($25)			DF 22 00 10
   *    ld $25,24($25)			DF 39 00 18
   *    j $25				03 20 00 08
   *    nop				00 00 00 00
   *    .dword <data>			<data>
   *    .dword <address>		<address>
   */

  *(unsigned int *)  (function + 0) = 0xDF220010;
  *(unsigned int *)  (function + 4) = 0xDF390018;
  *(unsigned int *)  (function + 8) = 0x03200008;
  *(unsigned int *)  (function +12) = 0x00000000;
  *(unsigned long *) (function +16) = (unsigned long) data;
  *(unsigned long *) (function +24) = (unsigned long) address;
#define is_tramp(function)  \
  *(unsigned int *)  (function + 0) == 0xDF220010 && \
  *(unsigned int *)  (function + 4) == 0xDF390018 && \
  *(unsigned int *)  (function + 8) == 0x03200008 && \
  *(unsigned int *)  (function +12) == 0x00000000
#define tramp_address(function)  \
  *(unsigned long *) (function +24)
#define tramp_data(function)  \
  *(unsigned long *) (function +16)
#endif
#if defined(__sparc__) && !defined(__sparc64__)
  /* function:
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#define tramp_address(function)  \
  ((long *) function)[3]
#define tramp_data(function)  \
  ((long *) function)[2]
#endif
#ifdef __arm__
  /* function:
   *    ldr     ip,[pc,#_function-.-8]		E59FC014
   *    ldr     ip,[ip,#0]			E59CC000  ??Is this correct??
   *    stmfd   sp!,{ip}			E92D1000
   *    ldr     ip,[pc,#_data-.-8]		E59FC004
   *    ldr     ip,[ip,#0]			E59CC000  ??Is this correct??
   *    ldmfd   sp!,{pc}^			E8FD8000
   * _data:
   *    .word   <data>				<data>
   * _function:
   *    .word   <address>			<address>
   */
  { static long code [6] =
      { 0xE59FC014, 0xE59CC000, 0xE92D1000, 0xE59FC004,
        0xE59CC000, 0xE8FD8000
      };
    int i;

    for (i=0; i<6; i++) { ((long *) function)[i] = code[i]; }
    ((long *) function)[6] = (long) data;
    ((long *) function)[7] = (long) address;

  }
#define is_tramp(function)  \
  ((long *) function)[0] == 0xE59FC014 && \
  ((long *) function)[1] == 0xE59CC000 && \
  ((long *) function)[2] == 0xE92D1000 && \
  ((long *) function)[3] == 0xE59FC004 && \
  ((long *) function)[4] == 0xE59CC000 && \
  ((long *) function)[5] == 0xE8FD8000
#define tramp_address(function)  \
  ((long *) function)[7]
#define tramp_data(function)  \
  ((long *) function)[6]
#endif

#ifdef __rs6000sysv4__


























  /* function:
   *    {liu|lis} 11,hi16(<data>)		3D 60 hi16(<data>)
   *    {oril|ori} 11,11,lo16(<data>)		61 6B lo16(<data>)
   *    {liu|lis} 0,hi16(<address>)		3C 00 hi16(<address>)
   *    {oril|ori} 0,0,lo16(<address>)		60 00 lo16(<address>)
   *    mtctr 0					7C 09 03 A6
   *    bctr					4E 80 04 20







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#define tramp_address(function)  \
  ((long *) function)[3]
#define tramp_data(function)  \
  ((long *) function)[2]
#endif
#ifdef __arm__
  /* function:


   *	add	r12,pc,#8			E28FC008
   *	ldr	pc,[pc]				E59FF000


   * _data:
   *	.word	<data>
   * _function:
   *	.word	<address>
   */





  {
    ((long *) function)[0] = 0xE28FC008;
    ((long *) function)[1] = 0xE59FF000;
    ((long *) function)[2] = (long) data;
    ((long *) function)[3] = (long) address;
  }
#define is_tramp(function)  \
  ((long *) function)[0] == 0xE28FC008 && \
  ((long *) function)[1] == 0xE59FF000




#define tramp_address(function)  \
  ((long *) function)[3]
#define tramp_data(function)  \
  ((long *) function)[2]
#endif
#ifdef __powerpcsysv4__
#ifdef __NetBSD__
  /* function:
   *    {liu|lis} 13,hi16(<data>)		3D A0 hi16(<data>)
   *    {oril|ori} 13,13,lo16(<data>)		61 AD lo16(<data>)
   *    {liu|lis} 0,hi16(<address>)		3C 00 hi16(<address>)
   *    {oril|ori} 0,0,lo16(<address>)		60 00 lo16(<address>)
   *    mtctr 0					7C 09 03 A6
   *    bctr					4E 80 04 20
   */
  *(short *) (function + 0) = 0x3DA0;
  *(short *) (function + 2) = (unsigned long) data >> 16;
  *(short *) (function + 4) = 0x61AD;
  *(short *) (function + 6) = (unsigned long) data & 0xffff;
  *(short *) (function + 8) = 0x3C00;
  *(short *) (function +10) = (unsigned long) address >> 16;
  *(short *) (function +12) = 0x6000;
  *(short *) (function +14) = (unsigned long) address & 0xffff;
  *(long *)  (function +16) = 0x7C0903A6;
  *(long *)  (function +20) = 0x4E800420;
#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x3DA0 && \
  *(unsigned short *) (function + 4) == 0x61AD && \
  *(unsigned short *) (function + 8) == 0x3C00 && \
  *(unsigned short *) (function +12) == 0x6000 && \
  *(unsigned long *)  (function +16) == 0x7C0903A6 && \
  *(unsigned long *)  (function +20) == 0x4E800420
#else
  /* function:
   *    {liu|lis} 11,hi16(<data>)		3D 60 hi16(<data>)
   *    {oril|ori} 11,11,lo16(<data>)		61 6B lo16(<data>)
   *    {liu|lis} 0,hi16(<address>)		3C 00 hi16(<address>)
   *    {oril|ori} 0,0,lo16(<address>)		60 00 lo16(<address>)
   *    mtctr 0					7C 09 03 A6
   *    bctr					4E 80 04 20
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#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x3D60 && \
  *(unsigned short *) (function + 4) == 0x616B && \
  *(unsigned short *) (function + 8) == 0x3C00 && \
  *(unsigned short *) (function +12) == 0x6000 && \
  *(unsigned long *)  (function +16) == 0x7C0903A6 && \
  *(unsigned long *)  (function +20) == 0x4E800420

#define hilo(hiword,loword)  \
  (((unsigned long) (hiword) << 16) | (unsigned long) (loword))
#define tramp_address(function)  \
  hilo(*(unsigned short *) (function +10), *(unsigned short *) (function +14))
#define tramp_data(function)  \
  hilo(*(unsigned short *) (function + 2), *(unsigned short *) (function + 6))
#endif
#ifdef __rs6000netbsd__
  /* function:
   *    {liu|lis} 13,hi16(<data>)		3D A0 hi16(<data>)
   *    {oril|ori} 13,13,lo16(<data>)		61 AD lo16(<data>)
   *    {liu|lis} 0,hi16(<address>)		3C 00 hi16(<address>)
   *    {oril|ori} 0,0,lo16(<address>)		60 00 lo16(<address>)
   *    mtctr 0					7C 09 03 A6
   *    bctr					4E 80 04 20
   */
  *(short *) (function + 0) = 0x3DA0;
  *(short *) (function + 2) = (unsigned long) data >> 16;
  *(short *) (function + 4) = 0x61AD;
  *(short *) (function + 6) = (unsigned long) data & 0xffff;
  *(short *) (function + 8) = 0x3C00;
  *(short *) (function +10) = (unsigned long) address >> 16;
  *(short *) (function +12) = 0x6000;
  *(short *) (function +14) = (unsigned long) address & 0xffff;
  *(long *)  (function +16) = 0x7C0903A6;
  *(long *)  (function +20) = 0x4E800420;
#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x3DA0 && \
  *(unsigned short *) (function + 4) == 0x61AD && \
  *(unsigned short *) (function + 8) == 0x3C00 && \
  *(unsigned short *) (function +12) == 0x6000 && \
  *(unsigned long *)  (function +16) == 0x7C0903A6 && \
  *(unsigned long *)  (function +20) == 0x4E800420
#define hilo(hiword,loword)  \
  (((unsigned long) (hiword) << 16) | (unsigned long) (loword))
#define tramp_address(function)  \
  hilo(*(unsigned short *) (function +10), *(unsigned short *) (function +14))
#define tramp_data(function)  \
  hilo(*(unsigned short *) (function + 2), *(unsigned short *) (function + 6))
#endif
#ifdef __rs6000aix__
  /* function:
   *    .long .tramp_r
   *    .long .mytoc
   *    .long 0
   * .mytoc:
   *    .long <data>
   *    .long <address>
   */
  *(long *)  (function + 0) = ((long *) &tramp_r)[0];
  *(long *)  (function + 4) = (long) (function + 12);
  *(long *)  (function + 8) = 0;
  *(long *)  (function +12) = (long) data;
  *(long *)  (function +16) = (long) address;





















#define is_tramp(function)  \
  ((long *) function)[0] == ((long *) &tramp_r)[0]
#define tramp_address(function)  \
  ((long *) function)[4]
#define tramp_data(function)  \
  ((long *) function)[3]
#endif







>







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|













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819
820
821
822
823
824
825
826
827
828
829
830
831
832
833

































834
835
836
837
838
839
840
841
842
843
844
845
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848
849
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851
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865
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#define is_tramp(function)  \
  *(unsigned short *) (function + 0) == 0x3D60 && \
  *(unsigned short *) (function + 4) == 0x616B && \
  *(unsigned short *) (function + 8) == 0x3C00 && \
  *(unsigned short *) (function +12) == 0x6000 && \
  *(unsigned long *)  (function +16) == 0x7C0903A6 && \
  *(unsigned long *)  (function +20) == 0x4E800420
#endif
#define hilo(hiword,loword)  \
  (((unsigned long) (hiword) << 16) | (unsigned long) (loword))
#define tramp_address(function)  \
  hilo(*(unsigned short *) (function +10), *(unsigned short *) (function +14))
#define tramp_data(function)  \
  hilo(*(unsigned short *) (function + 2), *(unsigned short *) (function + 6))
#endif

































#ifdef __powerpcaix__
  /* function:
   *    .long .tramp_r
   *    .long .mytoc
   *    .long 0
   * .mytoc:
   *    .long <data>
   *    .long <address>
   */
  *(long *)  (function + 0) = ((long *) &tramp_r)[0];
  *(long *)  (function + 4) = (long) (function + 12);
  *(long *)  (function + 8) = 0;
  *(long *)  (function +12) = (long) data;
  *(long *)  (function +16) = (long) address;
#define is_tramp(function)  \
  ((long *) function)[0] == ((long *) &tramp_r)[0]
#define tramp_address(function)  \
  ((long *) function)[4]
#define tramp_data(function)  \
  ((long *) function)[3]
#endif
#ifdef __powerpc64aix__
  /* function:
   *    .quad .tramp_r
   *    .quad .mytoc
   *    .quad 0
   * .mytoc:
   *    .quad <data>
   *    .quad <address>
   */
  *(long *)  (function + 0) = ((long *) &tramp_r)[0];
  *(long *)  (function + 8) = (long) (function + 24);
  *(long *)  (function +16) = 0;
  *(long *)  (function +24) = (long) data;
  *(long *)  (function +32) = (long) address;
#define is_tramp(function)  \
  ((long *) function)[0] == ((long *) &tramp_r)[0]
#define tramp_address(function)  \
  ((long *) function)[4]
#define tramp_data(function)  \
  ((long *) function)[3]
#endif
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
#endif

  /* 4. Flush instruction cache */
  /* We need this because some CPUs have separate data cache and instruction
   * cache. The freshly built trampoline is visible to the data cache, but not
   * maybe not to the instruction cache. This is hairy.
   */
#if !(defined(__hppanew__) || defined(__rs6000aix__) || defined(__ia64__))
  /* Only needed if we really set up machine instructions. */
#ifdef __i386__
#if defined(_WIN32)
  while (!FlushInstructionCache(GetCurrentProcess(),function,TRAMP_LENGTH))
    continue;
#endif
#endif







|







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#endif

  /* 4. Flush instruction cache */
  /* We need this because some CPUs have separate data cache and instruction
   * cache. The freshly built trampoline is visible to the data cache, but not
   * maybe not to the instruction cache. This is hairy.
   */
#if !(defined(__hppanew__) || defined(__powerpcaix__) || defined(__powerpc64aix__) || defined(__ia64__))
  /* Only needed if we really set up machine instructions. */
#ifdef __i386__
#if defined(_WIN32)
  while (!FlushInstructionCache(GetCurrentProcess(),function,TRAMP_LENGTH))
    continue;
#endif
#endif
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  __TR_clear_cache();
#endif
#ifdef __hppa__
  /* This assumes that the trampoline fits in at most two cache lines. */
  __TR_clear_cache(function,function+TRAMP_LENGTH-1);
#endif
#ifdef __arm__
  /* This CPU does not have a separate instruction cache. (I think.) */
#endif
#ifdef __rs6000__
  __TR_clear_cache(function);
#endif
#ifdef __m88k__
  sysmot(S88CACHEFLUSHPAGE, (unsigned long)function & -pagesize);
#endif
#ifdef __convex__
  __TR_clear_cache();
#endif
#endif

  /* 5. Return. */
  return (__TR_function) (function + TRAMP_BIAS);
}

#if defined(__STDC__) || defined(__GNUC__) || defined(__cplusplus)
void free_trampoline_r (__TR_function function)
#else
void free_trampoline_r (function)
  __TR_function function;
#endif
{
#if TRAMP_BIAS
  function = (__TR_function)((char*)function - TRAMP_BIAS);
#endif
#if !defined(CODE_EXECUTABLE) && !defined(EXECUTABLE_VIA_MPROTECT)
  *(char**)function = freelist; freelist = (char*)function;
  /* It is probably not worth calling munmap() for entirely freed pages. */
#else
  free(((char**)function)[-1]);
#endif
}

#if defined(__STDC__) || defined(__GNUC__) || defined(__cplusplus)
int is_trampoline_r (void* function)
#else
int is_trampoline_r (function)
  void* function;
#endif
{
#if defined(is_tramp) && defined(tramp_data)
#ifdef __hppanew__
  void* tramp_r_address = &tramp_r;
  if (!(((long)function & 3) == (TRAMP_BIAS & 3))) return 0;
#endif
  return
   ((is_tramp(((char*)function - TRAMP_BIAS)))
    && ((tramp_data(((char*)function - TRAMP_BIAS))) == (long)((char*)function - TRAMP_BIAS + TRAMP_LENGTH))
    ? 1 : 0
   );
#else
  abort();
#endif
}

#if defined(__STDC__) || defined(__GNUC__) || defined(__cplusplus)
__TR_function trampoline_r_address (void* function)
#else
__TR_function trampoline_r_address (function)
  void* function;
#endif
{
#ifdef tramp_address
  return (__TR_function)(tramp_address(((char*)function - TRAMP_BIAS)));
#else
  abort();
#endif
}

#if defined(__STDC__) || defined(__GNUC__) || defined(__cplusplus)
void* trampoline_r_data0 (void* function)
#else
void* trampoline_r_data0 (function)
  void* function;
#endif
{
#ifdef tramp_data
  return ((void**)((char*)function-TRAMP_BIAS+TRAMP_LENGTH))[0];
#else
  abort();
#endif
}

#if defined(__STDC__) || defined(__GNUC__) || defined(__cplusplus)
void* trampoline_r_data1 (void* function)
#else
void* trampoline_r_data1 (function)
  void* function;
#endif
{
#ifdef tramp_data
  return ((void**)((char*)function-TRAMP_BIAS+TRAMP_LENGTH))[1];
#else
  abort();
#endif
}







|

|














<

<
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<












<

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<
















<

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<








<

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<








<

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<
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<







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1128
1129
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1144

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1157

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  __TR_clear_cache();
#endif
#ifdef __hppa__
  /* This assumes that the trampoline fits in at most two cache lines. */
  __TR_clear_cache(function,function+TRAMP_LENGTH-1);
#endif
#ifdef __arm__
  __TR_clear_cache(function,function+TRAMP_LENGTH);
#endif
#if defined(__powerpc__) && !defined(__powerpc64__)
  __TR_clear_cache(function);
#endif
#ifdef __m88k__
  sysmot(S88CACHEFLUSHPAGE, (unsigned long)function & -pagesize);
#endif
#ifdef __convex__
  __TR_clear_cache();
#endif
#endif

  /* 5. Return. */
  return (__TR_function) (function + TRAMP_BIAS);
}


void free_trampoline_r (__TR_function function)




{
#if TRAMP_BIAS
  function = (__TR_function)((char*)function - TRAMP_BIAS);
#endif
#if !defined(CODE_EXECUTABLE) && !defined(EXECUTABLE_VIA_MPROTECT)
  *(char**)function = freelist; freelist = (char*)function;
  /* It is probably not worth calling munmap() for entirely freed pages. */
#else
  free(((char**)function)[-1]);
#endif
}


int is_trampoline_r (void* function)




{
#if defined(is_tramp) && defined(tramp_data)
#ifdef __hppanew__
  void* tramp_r_address = &tramp_r;
  if (!(((long)function & 3) == (TRAMP_BIAS & 3))) return 0;
#endif
  return
   ((is_tramp(((char*)function - TRAMP_BIAS)))
    && ((tramp_data(((char*)function - TRAMP_BIAS))) == (long)((char*)function - TRAMP_BIAS + TRAMP_LENGTH))
    ? 1 : 0
   );
#else
  abort();
#endif
}


__TR_function trampoline_r_address (void* function)




{
#ifdef tramp_address
  return (__TR_function)(tramp_address(((char*)function - TRAMP_BIAS)));
#else
  abort();
#endif
}


void* trampoline_r_data0 (void* function)




{
#ifdef tramp_data
  return ((void**)((char*)function-TRAMP_BIAS+TRAMP_LENGTH))[0];
#else
  abort();
#endif
}


void* trampoline_r_data1 (void* function)




{
#ifdef tramp_data
  return ((void**)((char*)function-TRAMP_BIAS+TRAMP_LENGTH))[1];
#else
  abort();
#endif
}