https://gcc.gnu.org/g:91b932c193e0c83b5daa9295ea1c52914258457e
commit 91b932c193e0c83b5daa9295ea1c52914258457e
Author: Thomas Schwinge <tschwi...@baylibre.com>
Date: Wed Jun 5 13:11:04 2024 +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 <a...@gcc.gnu.org>
(cherry picked from commit a29c5852a606588175d11844db84da0881227100)
Diff:
---
libgcc/ChangeLog.omp | 6 ++++++
libgcc/config/nvptx/t-nvptx | 3 ++-
libgcc/config/nvptx/unwind-nvptx.c | 37 +++++++++++++++++++++++++++++++++++++
3 files changed, 45 insertions(+), 1 deletion(-)
diff --git a/libgcc/ChangeLog.omp b/libgcc/ChangeLog.omp
index 7294ca9aace..62461642e5f 100644
--- a/libgcc/ChangeLog.omp
+++ b/libgcc/ChangeLog.omp
@@ -1,3 +1,9 @@
+2024-06-05 Thomas Schwinge <tschwi...@baylibre.com>
+ Andrew Stubbs <a...@gcc.gnu.org>
+
+ * config/nvptx/t-nvptx: Add unwind-nvptx.c.
+ * config/nvptx/unwind-nvptx.c: New file.
+
2024-06-05 Thomas Schwinge <tschwi...@baylibre.com>
* config/nvptx/gbl-ctors.c ["mgomp"]
diff --git a/libgcc/config/nvptx/t-nvptx b/libgcc/config/nvptx/t-nvptx
index 260ed6334db..1ff574c2982 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
# Until we have libstdc++-v3/libsupc++ proper.
LIB2ADD += $(srcdir)/c++-minimal/guard.c
diff --git a/libgcc/config/nvptx/unwind-nvptx.c
b/libgcc/config/nvptx/unwind-nvptx.c
new file mode 100644
index 00000000000..d08ba266be1
--- /dev/null
+++ b/libgcc/config/nvptx/unwind-nvptx.c
@@ -0,0 +1,37 @@
+/* Stub unwinding implementation.
+
+ Copyright (C) 2019-2024 Free Software Foundation, Inc.
+ Contributed by Mentor Graphics
+
+ 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;
+}
