1 Adds asm("ta 6") which suppresses bus error caused by misalignment.

     2 

     3 diff --git a/js/xpconnect/src/XPCShellImpl.cpp b/js/xpconnect/src/XPCShellImpl.cpp

     4 --- a/js/xpconnect/src/XPCShellImpl.cpp

     5 +++ b/js/xpconnect/src/XPCShellImpl.cpp

     6 @@ -1320,16 +1320,22 @@ GetCurrentWorkingDirectory(nsAString& wo

     7      return true;

     8  }

     9  

    10  static JSSecurityCallbacks shellSecurityCallbacks;

    11  

    12  int

    13  XRE_XPCShellMain(int argc, char** argv, char** envp)

    14  {

    15 +

    16 +#if defined (__GNUC__) && (defined(__sparc) || defined(__sparc__))

    17 +    // make unaligned memory access no crash

    18 +    asm ( "ta 6" );

    19 +#endif

    20 +

    21      JSRuntime* rt;

    22      JSContext* cx;

    23      int result;

    24      nsresult rv;

    25  

    26      gErrFile = stderr;

    27      gOutFile = stdout;

    28      gInFile = stdin;

    29 diff --git a/memory/mozjemalloc/jemalloc.c b/memory/mozjemalloc/jemalloc.c

    30 --- a/memory/mozjemalloc/jemalloc.c

    31 +++ b/memory/mozjemalloc/jemalloc.c

    32 @@ -5551,16 +5551,22 @@ malloc_init(void)

    33  #endif

    34  

    35  #if !defined(MOZ_MEMORY_WINDOWS)

    36  static

    37  #endif

    38  bool

    39  malloc_init_hard(void)

    40  {

    41 +

    42 +#if defined (__GNUC__) && (defined(__sparc) || defined(__sparc__))

    43 +    // make unaligned memory access no crash

    44 +    asm ( "ta 6" );

    45 +#endif

    46 +

    47  	unsigned i;

    48  	char buf[PATH_MAX + 1];

    49  	const char *opts;

    50  	long result;

    51  #ifndef MOZ_MEMORY_WINDOWS

    52  	int linklen;

    53  #endif

    54  #ifdef MOZ_MEMORY_DARWIN

    55 diff --git a/toolkit/xre/nsAppRunner.cpp b/toolkit/xre/nsAppRunner.cpp

    56 --- a/toolkit/xre/nsAppRunner.cpp

    57 +++ b/toolkit/xre/nsAppRunner.cpp

    58 @@ -4016,16 +4016,22 @@ XREMain::XRE_mainRun()

    59  }

    60  

    61  /*

    62   * XRE_main - A class based main entry point used by most platforms.

    63   */

    64  int

    65  XREMain::XRE_main(int argc, char* argv[], const nsXREAppData* aAppData)

    66  {

    67 +

    68 +#if defined (__GNUC__) && (defined(__sparc) || defined(__sparc__))

    69 +    // make unaligned memory access no crash

    70 +    asm ( "ta 6" );

    71 +#endif

    72 +

    73    char aLocal;

    74    GeckoProfilerInitRAII profilerGuard(&aLocal);

    75    PROFILER_LABEL("Startup", "XRE_Main");

    76  

    77    mozilla::IOInterposerInit ioInterposerGuard;

    78  

    79    nsresult rv = NS_OK;

    80