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* [gcc/devel/omp/gcc-13] nvptx, libgcc: Stub unwinding implementation
@ 2023-05-19 16:51 Kwok Yeung
0 siblings, 0 replies; only message in thread
From: Kwok Yeung @ 2023-05-19 16:51 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:45396d92c63cc7f1074e3e4fe86fc7c36699a0b2
commit 45396d92c63cc7f1074e3e4fe86fc7c36699a0b2
Author: Thomas Schwinge <thomas@codesourcery.com>
Date: Wed Sep 21 18:58:34 2022 +0200
nvptx, libgcc: Stub unwinding implementation
Adding stub '_Unwind_Backtrace', '_Unwind_GetIPInfo' functions is necessary
for linking libbacktrace, as a normal (non-'LIBGFOR_MINIMAL') configuration
of libgfortran wants to do, for example.
The file 'libgcc/config/nvptx/unwind-nvptx.c' is copied from
'libgcc/config/gcn/unwind-gcn.c'.
libgcc/ChangeLog:
* config/nvptx/t-nvptx: Add unwind-nvptx.c.
* config/nvptx/unwind-nvptx.c: New file.
Co-authored-by: Andrew Stubbs <ams@codesourcery.com>
Diff:
---
libgcc/ChangeLog.omp | 6 ++++++
libgcc/config/nvptx/t-nvptx | 3 ++-
libgcc/config/nvptx/unwind-nvptx.c | 36 ++++++++++++++++++++++++++++++++++++
3 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/libgcc/ChangeLog.omp b/libgcc/ChangeLog.omp
index c62995770df..7d6595d60e9 100644
--- a/libgcc/ChangeLog.omp
+++ b/libgcc/ChangeLog.omp
@@ -1,3 +1,9 @@
+2023-01-20 Thomas Schwinge <thomas@codesourcery.com>
+ Andrew Stubbs <ams@codesourcery.com>
+
+ * config/nvptx/t-nvptx: Add unwind-nvptx.c.
+ * config/nvptx/unwind-nvptx.c: New file.
+
2023-01-20 Thomas Schwinge <thomas@codesourcery.com>
* config/nvptx/crtstuff.c ["mgomp"]
diff --git a/libgcc/config/nvptx/t-nvptx b/libgcc/config/nvptx/t-nvptx
index 9a0454c3a4d..1845a38a35e 100644
--- a/libgcc/config/nvptx/t-nvptx
+++ b/libgcc/config/nvptx/t-nvptx
@@ -1,6 +1,7 @@
LIB2ADD=$(srcdir)/config/nvptx/reduction.c \
$(srcdir)/config/nvptx/mgomp.c \
- $(srcdir)/config/nvptx/atomic.c
+ $(srcdir)/config/nvptx/atomic.c \
+ $(srcdir)/config/nvptx/unwind-nvptx.c
LIB2ADDEH=
LIB2FUNCS_EXCLUDE=
diff --git a/libgcc/config/nvptx/unwind-nvptx.c b/libgcc/config/nvptx/unwind-nvptx.c
new file mode 100644
index 00000000000..c657b2af6f3
--- /dev/null
+++ b/libgcc/config/nvptx/unwind-nvptx.c
@@ -0,0 +1,36 @@
+/* Stub unwinding implementation.
+
+ Copyright (C) 2019-2023 Free Software Foundation, Inc.
+
+ This file is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 3, or (at your option) any
+ later version.
+
+ This file is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include "unwind.h"
+
+_Unwind_Reason_Code
+_Unwind_Backtrace(_Unwind_Trace_Fn trace, void * trace_argument)
+{
+ return 0;
+}
+
+_Unwind_Ptr
+_Unwind_GetIPInfo (struct _Unwind_Context *c, int *ip_before_insn)
+{
+ return 0;
+}
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