!39 Workaround a gcc bug using manual save/restore of r30

From: @zhang-liang-pengkun 
Reviewed-by: @Charlie_li 
Signed-off-by: @Charlie_li

0002-Workaround-a-gcc-bug-using-manual-save-restore-of-r3.patch

@@ -0,0 +1,54 @@
+From 86f72decefa955affbedf440a7f06ef5a5e04bc2 Mon Sep 17 00:00:00 2001
+From: Alexey Borzenkov <snaury@gmail.com>
+Date: Tue, 4 Sep 2018 23:30:27 +0300
+Subject: [PATCH] Workaround a gcc bug using manual save/restore of r30 (fixes
+ #136)
+
+---
+ platform/switch_ppc64_linux.h | 7 ++++++-
+ 1 file changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/platform/switch_ppc64_linux.h b/platform/switch_ppc64_linux.h
+index 53d127b..88e6847 100644
+--- a/platform/switch_ppc64_linux.h
++++ b/platform/switch_ppc64_linux.h
+@@ -2,6 +2,8 @@
+  * this is the internal transfer function.
+  *
+  * HISTORY
++ * 04-Sep-18  Alexey Borzenkov  <snaury@gmail.com>
++ *      Workaround a gcc bug using manual save/restore of r30
+  * 21-Mar-18  Tulio Magno Quites Machado Filho  <tuliom@linux.vnet.ibm.com>
+  *      Added r30 to the list of saved registers in order to fully comply with
+  *      both ppc64 ELFv1 ABI and the ppc64le ELFv2 ABI, that classify this
+@@ -64,7 +66,7 @@
+ 
+ #define REGS_TO_SAVE "r14", "r15", "r16", "r17", "r18", "r19", "r20",  \
+        "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29",  \
+-       "r30","r31",                                                    \
++       "r31",                                                    \
+        "fr14", "fr15", "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", \
+        "fr22", "fr23", "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", \
+        "fr30", "fr31", \
+@@ -77,8 +79,10 @@ slp_switch(void)
+     register int err;
+     register long *stackref, stsizediff;
+     void * toc;
++    void * r30;
+     __asm__ volatile ("" : : : REGS_TO_SAVE);
+     __asm__ volatile ("std 2, %0" : "=m" (toc));
++    __asm__ volatile ("std 30, %0" : "=m" (r30));
+     __asm__ ("mr %0, 1" : "=r" (stackref) : );
+     {
+         SLP_SAVE_STATE(stackref, stsizediff);
+@@ -91,6 +95,7 @@ slp_switch(void)
+             );
+         SLP_RESTORE_STATE();
+     }
++    __asm__ volatile ("ld 30, %0" : : "m" (r30));
+     __asm__ volatile ("ld 2, %0" : : "m" (toc));
+     __asm__ volatile ("" : : : REGS_TO_SAVE);
+     __asm__ volatile ("li %0, 0" : "=r" (err));
+-- 
+2.39.0.windows.2
+

python-greenlet.spec

@@ -1,11 +1,12 @@
 Name:            python-greenlet
 Version:         0.4.14
-Release:         5
+Release:         6
 Summary:         lightweight coroutines for in-process concurrent programming
 License:         MIT
 URL:             https://github.com/python-greenlet/greenlet
 Source0:         https://github.com/python-greenlet/greenlet/archive/0.4.14.tar.gz
 Patch0001:       0001-Add-support-for-RISC-V.patch
+Patch0002:       0002-Workaround-a-gcc-bug-using-manual-save-restore-of-r3.patch
 
 BuildRequires:   python2-devel python2-setuptools python3-devel python3-setuptools
 BuildRequires:   gcc-c++
@@ -84,6 +85,9 @@ that use python3-greenlet.
 %{_includedir}/python%{python3_version}*/greenlet/
 
 %changelog
+* Thu Nov 02 2023 zhangliangpengkun<zhangliangpengkun@xfusion.com> - 0.4.14-6
+- Workaround a gcc bug using manual save/restore of r30
+
 * Tue Oct 24 2023 zhangliangpengkun<zhangliangpengkun@xfusion.com> - 0.4.14-5
 - Add support for RISC-V