diff options
Diffstat (limited to 'contrib/gcc/unwind.h')
| -rw-r--r-- | contrib/gcc/unwind.h | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/contrib/gcc/unwind.h b/contrib/gcc/unwind.h index fc36913..af4e8af 100644 --- a/contrib/gcc/unwind.h +++ b/contrib/gcc/unwind.h @@ -1,5 +1,5 @@ /* Exception handling and frame unwind runtime interface routines. - Copyright (C) 2001 Free Software Foundation, Inc. + Copyright (C) 2001, 2003 Free Software Foundation, Inc. This file is part of GCC. @@ -18,6 +18,13 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +/* As a special exception, if you include this header file into source + files compiled by GCC, this header file does not by itself cause + the resulting executable to be covered by the GNU General Public + License. This exception does not however invalidate any other + reasons why the executable file might be covered by the GNU General + Public License. */ + /* This is derived from the C++ ABI for IA-64. Where we diverge for cross-architecture compatibility are noted with "@@@". */ @@ -31,7 +38,12 @@ extern "C" { inefficient for 32-bit and smaller machines. */ typedef unsigned _Unwind_Word __attribute__((__mode__(__word__))); typedef signed _Unwind_Sword __attribute__((__mode__(__word__))); +#if defined(__ia64__) && defined(__hpux__) +typedef unsigned _Unwind_Ptr __attribute__((__mode__(__word__))); +#else typedef unsigned _Unwind_Ptr __attribute__((__mode__(__pointer__))); +#endif +typedef unsigned _Unwind_Internal_Ptr __attribute__((__mode__(__pointer__))); /* @@@ The IA-64 ABI uses a 64-bit word to identify the producer and consumer of an exception. We'll go along with this for now even on @@ -115,6 +127,18 @@ extern void _Unwind_DeleteException (struct _Unwind_Exception *); e.g. executing cleanup code, and not to implement rethrowing. */ extern void _Unwind_Resume (struct _Unwind_Exception *); +/* @@@ Resume propagation of an FORCE_UNWIND exception, or to rethrow + a normal exception that was handled. */ +extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *); + +/* @@@ Use unwind data to perform a stack backtrace. The trace callback + is called for every stack frame in the call chain, but no cleanup + actions are performed. */ +typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn) + (struct _Unwind_Context *, void *); + +extern _Unwind_Reason_Code _Unwind_Backtrace (_Unwind_Trace_Fn, void *); + /* These functions are used for communicating information about the unwind context (i.e. the unwind descriptors and the user register state) between the unwind library and the personality routine and landing pad. Only @@ -126,6 +150,9 @@ extern void _Unwind_SetGR (struct _Unwind_Context *, int, _Unwind_Word); extern _Unwind_Ptr _Unwind_GetIP (struct _Unwind_Context *); extern void _Unwind_SetIP (struct _Unwind_Context *, _Unwind_Ptr); +/* @@@ Retrieve the CFA of the given context. */ +extern _Unwind_Word _Unwind_GetCFA (struct _Unwind_Context *); + extern void *_Unwind_GetLanguageSpecificData (struct _Unwind_Context *); extern _Unwind_Ptr _Unwind_GetRegionStart (struct _Unwind_Context *); @@ -136,15 +163,15 @@ extern _Unwind_Ptr _Unwind_GetRegionStart (struct _Unwind_Context *); library and language-specific exception handling semantics. It is specific to the code fragment described by an unwind info block, and it is always referenced via the pointer in the unwind info block, and - hence it has no ABI-specified name. + hence it has no ABI-specified name. Note that this implies that two different C++ implementations can use different names, and have different contents in the language - specific data area. Moreover, that the language specific data + specific data area. Moreover, that the language specific data area contains no version info because name of the function invoked provides more effective versioning by detecting at link time the lack of code to handle the different data format. */ - + typedef _Unwind_Reason_Code (*_Unwind_Personality_Fn) (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *, struct _Unwind_Context *); @@ -161,6 +188,7 @@ extern _Unwind_Reason_Code _Unwind_SjLj_RaiseException extern _Unwind_Reason_Code _Unwind_SjLj_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *); extern void _Unwind_SjLj_Resume (struct _Unwind_Exception *); +extern _Unwind_Reason_Code _Unwind_SjLj_Resume_or_Rethrow (struct _Unwind_Exception *); /* @@@ The following provide access to the base addresses for text and data-relative addressing in the LDSA. In order to stay link @@ -187,6 +215,10 @@ extern _Unwind_Ptr _Unwind_GetDataRelBase (struct _Unwind_Context *); extern _Unwind_Ptr _Unwind_GetTextRelBase (struct _Unwind_Context *); #endif +/* @@@ Given an address, return the entry point of the function that + contains it. */ +extern void * _Unwind_FindEnclosingFunction (void *pc); + #ifdef __cplusplus } #endif |
