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sdk: C++ exeptions support

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git-svn-id: svn://kolibrios.org@5963 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
2015-12-14 17:41:20 +00:00
parent b340790ba4
commit b393c4e9d9
27 changed files with 3029 additions and 159 deletions
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23
contrib/sdk/sources/gcc_eh/unwind-c.c
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@@ -1,5 +1,5 @@
/* Supporting functions for C exception handling.
Copyright (C) 2002, 2003, 2009 Free Software Foundation, Inc.
Copyright (C) 2002-2013 Free Software Foundation, Inc.
Contributed by Aldy Hernandez <aldy@quesejoda.com>.
Shamelessly stolen from the Java front end.
@@ -93,6 +93,8 @@ parse_lsda_header (struct _Unwind_Context *context, const unsigned char *p,
#ifdef __USING_SJLJ_EXCEPTIONS__
#define PERSONALITY_FUNCTION __gcc_personality_sj0
#define __builtin_eh_return_data_regno(x) x
#elif defined(__SEH__)
#define PERSONALITY_FUNCTION __gcc_personality_imp
#else
#define PERSONALITY_FUNCTION __gcc_personality_v0
#endif
@@ -107,6 +109,9 @@ PERSONALITY_FUNCTION (_Unwind_State state,
struct _Unwind_Exception * ue_header,
struct _Unwind_Context * context)
#else
#if defined (__SEH__) && !defined (__USING_SJLJ_EXCEPTIONS__)
static
#endif
_Unwind_Reason_Code
PERSONALITY_FUNCTION (int, _Unwind_Action, _Unwind_Exception_Class,
struct _Unwind_Exception *, struct _Unwind_Context *);
@@ -130,10 +135,10 @@ PERSONALITY_FUNCTION (int version,
/* The dwarf unwinder assumes the context structure holds things like the
function and LSDA pointers. The ARM implementation caches these in
the exception header (UCB). To avoid rewriting everything we make the
virtual IP register point at the UCB. */
the exception header (UCB). To avoid rewriting everything we make a
virtual scratch register point at the UCB. */
ip = (_Unwind_Ptr) ue_header;
_Unwind_SetGR (context, 12, ip);
_Unwind_SetGR (context, UNWIND_POINTER_REG, ip);
#else
if (version != 1)
return _URC_FATAL_PHASE1_ERROR;
@@ -227,3 +232,13 @@ PERSONALITY_FUNCTION (int version,
_Unwind_SetIP (context, landing_pad);
return _URC_INSTALL_CONTEXT;
}
#if defined (__SEH__) && !defined (__USING_SJLJ_EXCEPTIONS__)
EXCEPTION_DISPOSITION
__gcc_personality_seh0 (PEXCEPTION_RECORD ms_exc, void *this_frame,
PCONTEXT ms_orig_context, PDISPATCHER_CONTEXT ms_disp)
{
return _GCC_specific_handler (ms_exc, this_frame, ms_orig_context,
ms_disp, __gcc_personality_imp);
}
#endif /* SEH */