From 56e449d39af4a5c032d8d1f2825182ebed7a1a75 Mon Sep 17 00:00:00 2001 From: Sandra Loosemore Date: Fri, 14 Sep 2007 14:35:12 -0400 Subject: tm.texi (LIBGCC2_UNWIND_ATTRIBUTE): Document. 2007-09-14 Sandra Loosemore Nigel Stephens gcc/ * doc/tm.texi (LIBGCC2_UNWIND_ATTRIBUTE): Document. * unwind-generic.h (LIBGCC2_UNWIND_ATTRIBUTE): Define. (_Unwind_RaiseException): Add LIBGCC2_UNWIND_ATTRIBUTE to declaration. (_Unwind_ForcedUnwind): Likewise. (_Unwind_Resume): Likewise. (_Unwind_Resume_or_Rethrow): Likewise. (_Unwind_Backtrace): Likewise. (_Unwind_SjLj_RaiseException): Likewise. (_Unwind_SjLj_ForcedUnwind): Likewise. (_Unwind_SjLj_Resume): Likewise. (_Unwind_SjLj_Resume_or_Rethrow): Likewise. * unwind.inc (_Unwind_RaiseException): Add LIBGCC2_UNWIND_ATTRIBUTE to definition. (_Unwind_ForcedUnwind): Likewise. (_Unwind_Resume): Likewise. (_Unwind_Resume_or_Rethrow): Likewise. (_Unwind_Backtrace): Likewise. * unwind-compat.c (_Unwind_Backtrace): Likewise. (_Unwind_ForcedUnwind): Likewise. (_Unwind_RaiseException): Likewise. (_Unwind_Resume): Likewise. (_Unwind_Resume_or_Rethrow): Likewise. * config/mips/mips.h (LIBGCC2_UNWIND_ATTRIBUTE): Define to force nomips16 mode when IN_LIBGCC2 with hard float. Co-Authored-By: Nigel Stephens From-SVN: r128501 --- gcc/unwind-generic.h | 37 ++++++++++++++++++++++++------------- 1 file changed, 24 insertions(+), 13 deletions(-) (limited to 'gcc/unwind-generic.h') diff --git a/gcc/unwind-generic.h b/gcc/unwind-generic.h index 4d5d14d..cebd663 100644 --- a/gcc/unwind-generic.h +++ b/gcc/unwind-generic.h @@ -108,6 +108,12 @@ typedef int _Unwind_Action; #define _UA_FORCE_UNWIND 8 #define _UA_END_OF_STACK 16 +/* The target can override this macro to define any back-end-specific + attributes required for the lowest-level stack frame. */ +#ifndef LIBGCC2_UNWIND_ATTRIBUTE +#define LIBGCC2_UNWIND_ATTRIBUTE +#endif + /* This is an opaque type used to refer to a system-specific data structure used by the system unwinder. This context is created and destroyed by the system, and passed to the personality routine @@ -115,7 +121,8 @@ typedef int _Unwind_Action; struct _Unwind_Context; /* Raise an exception, passing along the given exception object. */ -extern _Unwind_Reason_Code _Unwind_RaiseException (struct _Unwind_Exception *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_Unwind_RaiseException (struct _Unwind_Exception *); /* Raise an exception for forced unwinding. */ @@ -123,20 +130,21 @@ typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn) (int, _Unwind_Action, _Unwind_Exception_Class, struct _Unwind_Exception *, struct _Unwind_Context *, void *); -extern _Unwind_Reason_Code _Unwind_ForcedUnwind (struct _Unwind_Exception *, - _Unwind_Stop_Fn, - void *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_Unwind_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *); /* Helper to invoke the exception_cleanup routine. */ extern void _Unwind_DeleteException (struct _Unwind_Exception *); /* Resume propagation of an existing exception. This is used after e.g. executing cleanup code, and not to implement rethrowing. */ -extern void _Unwind_Resume (struct _Unwind_Exception *); +extern void LIBGCC2_UNWIND_ATTRIBUTE +_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 *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_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 @@ -144,7 +152,8 @@ extern _Unwind_Reason_Code _Unwind_Resume_or_Rethrow (struct _Unwind_Exception * typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn) (struct _Unwind_Context *, void *); -extern _Unwind_Reason_Code _Unwind_Backtrace (_Unwind_Trace_Fn, void *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_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 @@ -191,12 +200,14 @@ struct SjLj_Function_Context; extern void _Unwind_SjLj_Register (struct SjLj_Function_Context *); extern void _Unwind_SjLj_Unregister (struct SjLj_Function_Context *); -extern _Unwind_Reason_Code _Unwind_SjLj_RaiseException - (struct _Unwind_Exception *); -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 *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_Unwind_SjLj_RaiseException (struct _Unwind_Exception *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_Unwind_SjLj_ForcedUnwind (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *); +extern void LIBGCC2_UNWIND_ATTRIBUTE +_Unwind_SjLj_Resume (struct _Unwind_Exception *); +extern _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE +_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. 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