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GCN, nvptx: Define '_Unwind_RaiseException', '_Unwind_Resume_or_Rethrow'

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This resolves GCN:

    ld: error: undefined symbol: _Unwind_RaiseException
    >>> referenced by eh_throw.cc:93 ([...]/source-gcc/libstdc++-v3/libsupc++/eh_throw.cc:93)
    >>>               eh_throw.o:(__cxa_throw) in archive /srv/data/tschwinge/amd-instinct2/gcc/build/submit-light-target_gcn/build-gcc/amdgcn-amdhsa/gfx908/libstdc++-v3/src/.libs/libstdc++.a
    [...]
    collect2: error: ld returned 1 exit status

..., and/or:

    ld: error: undefined symbol: _Unwind_Resume_or_Rethrow
    >>> referenced by eh_throw.cc:129 ([...]/source-gcc/libstdc++-v3/libsupc++/eh_throw.cc:129)
    >>>               eh_throw.o:(__cxa_rethrow) in archive /srv/data/tschwinge/amd-instinct2/gcc/build/submit-light-target_gcn/build-gcc/amdgcn-amdhsa/gfx908/libstdc++-v3/src/.libs/libstdc++.a
    [...]
    collect2: error: ld returned 1 exit status

..., and nvptx:

    unresolved symbol _Unwind_RaiseException
    collect2: error: ld returned 1 exit status

..., or:

    unresolved symbol _Unwind_Resume_or_Rethrow
    collect2: error: ld returned 1 exit status

For both GCN, nvptx, this each progresses ~25 'check-gcc-c++',
and ~10 'check-target-libstdc++-v3' test cases:

    [-FAIL:-]{+PASS:+} [...] (test for excess errors)

..., with (if applicable, for most of them):

    [-UNRESOLVED:-]{+PASS:+} [...] [-compilation failed to produce executable-]{+execution test+}

..., or some 'FAIL: [...] execution test' where these test cases now FAIL when
attempting to use these interfaces, or, if applicable, FAIL due to run-time
'GCC/nvptx: sorry, unimplemented: dynamic stack allocation not supported'.

	libgcc/
	* config/gcn/unwind-gcn.c (_Unwind_RaiseException)
	(_Unwind_Resume_or_Rethrow): New.
	* config/nvptx/unwind-nvptx.c (_Unwind_RaiseException)
	(_Unwind_Resume_or_Rethrow): Likewise.
This commit is contained in:
Thomas Schwinge 2025-03-18 10:10:30 +01:00
parent 815abd6835
commit 54ab0f6785
2 changed files with 28 additions and 0 deletions
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14
libgcc/config/gcn/unwind-gcn.c
View file

@ -24,6 +24,13 @@
#include "unwind.h"
_Unwind_Reason_Code
_Unwind_RaiseException(struct _Unwind_Exception *exc __attribute__ ((__unused__)))
{
__builtin_abort ();
return 0;
}
void
_Unwind_DeleteException (struct _Unwind_Exception *exc)
{
@ -31,6 +38,13 @@ _Unwind_DeleteException (struct _Unwind_Exception *exc)
(*exc->exception_cleanup) (_URC_FOREIGN_EXCEPTION_CAUGHT, exc);
}
_Unwind_Reason_Code
_Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc __attribute__ ((__unused__)))
{
__builtin_abort ();
return 0;
}
_Unwind_Reason_Code
_Unwind_Backtrace(_Unwind_Trace_Fn trace, void * trace_argument)
{

14
libgcc/config/nvptx/unwind-nvptx.c
View file

@ -24,6 +24,13 @@
#include "unwind.h"
_Unwind_Reason_Code
_Unwind_RaiseException(struct _Unwind_Exception *exc __attribute__ ((__unused__)))
{
__builtin_abort ();
return 0;
}
void
_Unwind_DeleteException (struct _Unwind_Exception *exc)
{
@ -31,6 +38,13 @@ _Unwind_DeleteException (struct _Unwind_Exception *exc)
(*exc->exception_cleanup) (_URC_FOREIGN_EXCEPTION_CAUGHT, exc);
}
_Unwind_Reason_Code
_Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc __attribute__ ((__unused__)))
{
__builtin_abort ();
return 0;
}
_Unwind_Reason_Code
_Unwind_Backtrace(_Unwind_Trace_Fn trace, void * trace_argument)
{