import golang-1.16.6-4.el9

2021-11-02 05:57:47 -04:00 · 2021-11-02 05:57:47 -04:00 · cb41cf6a2c
commit cb41cf6a2c
13 changed files with 3002 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1 @@
+SOURCES/go-go-1.16.6-3-openssl-fips.tar.gz
--- a/.golang.metadata
+++ b/.golang.metadata
@ -0,0 +1 @@
+97a713b08ed6438c1b488c29fb4c1b2d654831c8 SOURCES/go-go-1.16.6-3-openssl-fips.tar.gz
--- a/SOURCES/cgo-lto-fix.patch
+++ b/SOURCES/cgo-lto-fix.patch
@ -0,0 +1,289 @@
+From 24e9707cbfa6b1ed6abdd4b11f9ddaf3aac5ad88 Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Tue, 25 May 2021 16:31:41 -0700
+Subject: [PATCH] cmd/link, cmd/cgo: support -flto in CFLAGS
+
+The linker now accepts unrecognized object files in external linking mode.
+These objects will simply be passed to the external linker.
+This permits using -flto which can generate pure byte code objects,
+whose symbol table the linker does not know how to read.
+
+The cgo tool now passes -fno-lto when generating objects whose symbols
+it needs to read. The cgo tool now emits matching types in different
+objects, so that the lto linker does not report a mismatch.
+
+This is based on https://golang.org/cl/293290 by Derek Parker.
+
+For #43505
+Fixes #43830
+Fixes #46295
+
+Change-Id: I6787de213417466784ddef5af8899e453b4ae1ad
+Reviewed-on: https://go-review.googlesource.com/c/go/+/322614
+Trust: Ian Lance Taylor <iant@golang.org>
+Run-TryBot: Ian Lance Taylor <iant@golang.org>
+TryBot-Result: Go Bot <gobot@golang.org>
+Reviewed-by: Michael Hudson-Doyle <michael.hudson@canonical.com>
+---
+
+diff --git a/src/cmd/cgo/gcc.go b/src/cmd/cgo/gcc.go
+index ae61725..a73e998 100644
+--- a/src/cmd/cgo/gcc.go
+++ b/src/cmd/cgo/gcc.go
+@@ -1638,6 +1638,8 @@
+ 		c = append(c, "-maix64")
+ 		c = append(c, "-mcmodel=large")
+ 	}
+	// disable LTO so we get an object whose symbols we can read
+	c = append(c, "-fno-lto")
+ 	c = append(c, "-") //read input from standard input
+ 	return c
+ }
+diff --git a/src/cmd/cgo/out.go b/src/cmd/cgo/out.go
+index 8c31d5b..94152f4 100644
+--- a/src/cmd/cgo/out.go
+++ b/src/cmd/cgo/out.go
+@@ -168,8 +168,18 @@
+ 			if *gccgo {
+ 				fmt.Fprintf(fc, "extern byte *%s;\n", n.C)
+ 			} else {
+-				fmt.Fprintf(fm, "extern char %s[];\n", n.C)
+-				fmt.Fprintf(fm, "void *_cgohack_%s = %s;\n\n", n.C, n.C)
+				// Force a reference to all symbols so that
+				// the external linker will add DT_NEEDED
+				// entries as needed on ELF systems.
+				// Treat function variables differently
+				// to avoid type confict errors from LTO
+				// (Link Time Optimization).
+				if n.Kind == "fpvar" {
+					fmt.Fprintf(fm, "extern void %s();\n", n.C)
+				} else {
+					fmt.Fprintf(fm, "extern char %s[];\n", n.C)
+					fmt.Fprintf(fm, "void *_cgohack_%s = %s;\n\n", n.C, n.C)
+				}
+ 				fmt.Fprintf(fgo2, "//go:linkname __cgo_%s %s\n", n.C, n.C)
+ 				fmt.Fprintf(fgo2, "//go:cgo_import_static %s\n", n.C)
+ 				fmt.Fprintf(fgo2, "var __cgo_%s byte\n", n.C)
+@@ -1042,7 +1052,7 @@
+ 		fmt.Fprintf(fgo2, "//go:cgo_export_static _cgoexp%s_%s\n", cPrefix, exp.ExpName)
+ 		fmt.Fprintf(fgo2, "func _cgoexp%s_%s(a *%s) {\n", cPrefix, exp.ExpName, gotype)
+ 
+-		fmt.Fprintf(fm, "int _cgoexp%s_%s;\n", cPrefix, exp.ExpName)
+		fmt.Fprintf(fm, "void _cgoexp%s_%s(void* p){}\n", cPrefix, exp.ExpName)
+ 
+ 		if gccResult != "void" {
+ 			// Write results back to frame.
+diff --git a/src/cmd/dist/test.go b/src/cmd/dist/test.go
+index 50bf80b..bc49c6d 100644
+--- a/src/cmd/dist/test.go
+++ b/src/cmd/dist/test.go
+@@ -722,14 +722,29 @@
+ 				},
+ 			})
+ 			if t.hasCxx() {
+-				t.tests = append(t.tests, distTest{
+-					name:    "swig_callback",
+-					heading: "../misc/swig/callback",
+-					fn: func(dt *distTest) error {
+-						t.addCmd(dt, "misc/swig/callback", t.goTest())
+-						return nil
+				t.tests = append(t.tests,
+					distTest{
+						name:    "swig_callback",
+						heading: "../misc/swig/callback",
+						fn: func(dt *distTest) error {
+							t.addCmd(dt, "misc/swig/callback", t.goTest())
+							return nil
+						},
+ 					},
+-				})
+					distTest{
+						name:    "swig_callback_lto",
+						heading: "../misc/swig/callback",
+						fn: func(dt *distTest) error {
+							cmd := t.addCmd(dt, "misc/swig/callback", t.goTest())
+							cmd.Env = append(os.Environ(),
+								"CGO_CFLAGS=-flto",
+								"CGO_CXXFLAGS=-flto",
+								"CGO_LDFLAGS=-flto",
+							)
+							return nil
+						},
+					},
+				)
+ 			}
+ 		}
+ 	}
+diff --git a/src/cmd/go/testdata/script/cgo_lto2_issue43830.txt b/src/cmd/go/testdata/script/cgo_lto2_issue43830.txt
+new file mode 100644
+index 0000000..e2483ba
+--- /dev/null
+++ b/src/cmd/go/testdata/script/cgo_lto2_issue43830.txt
+@@ -0,0 +1,33 @@
+# tests golang.org/issue/43830
+
+[!cgo] skip 'skipping test without cgo'
+[openbsd] env CC='clang'
+[openbsd] [!exec:clang] skip 'skipping test without clang present'
+[!openbsd] env CC='gcc'
+[!openbsd] [!exec:gcc] skip 'skipping test without gcc present'
+
+env CGO_CFLAGS='-Wno-ignored-optimization-argument -flto -ffat-lto-objects'
+
+go build main.go
+
+-- main.go --
+
+package main
+
+import "fmt"
+
+// #include "hello.h"
+import "C"
+
+func main() {
+	hello := C.hello
+	fmt.Printf("%v\n", hello)
+}
+
+-- hello.h --
+
+#include <stdio.h>
+
+void hello(void) {
+  printf("hello\n");
+}
+diff --git a/src/cmd/go/testdata/script/cgo_lto_issue43830.txt b/src/cmd/go/testdata/script/cgo_lto_issue43830.txt
+new file mode 100644
+index 0000000..06ab2f3
+--- /dev/null
+++ b/src/cmd/go/testdata/script/cgo_lto_issue43830.txt
+@@ -0,0 +1,39 @@
+# tests golang.org/issue/43830
+
+[!cgo] skip 'skipping test without cgo'
+[openbsd] env CC='clang'
+[openbsd] [!exec:clang] skip 'skipping test without clang present'
+[!openbsd] env CC='gcc'
+[!openbsd] [!exec:gcc] skip 'skipping test without gcc present'
+
+env CGO_CFLAGS='-Wno-ignored-optimization-argument -flto -ffat-lto-objects'
+
+go build main.go add.go
+
+-- main.go --
+
+package main
+
+/*
+int c_add(int a, int b) {
+	return myadd(a, b);
+}
+*/
+import "C"
+
+func main() {
+	println(C.c_add(1, 2))
+}
+
+-- add.go --
+
+package main
+
+import "C"
+
+/* test */
+
+//export myadd
+func myadd(a C.int, b C.int) C.int {
+	return a + b
+}
+diff --git a/src/cmd/link/internal/ld/ar.go b/src/cmd/link/internal/ld/ar.go
+index 22f53a4..23915f9 100644
+--- a/src/cmd/link/internal/ld/ar.go
+++ b/src/cmd/link/internal/ld/ar.go
+@@ -124,6 +124,10 @@
+ 
+ 			libgcc := sym.Library{Pkg: "libgcc"}
+ 			h := ldobj(ctxt, f, &libgcc, l, pname, name)
+			if h.ld == nil {
+				Errorf(nil, "%s unrecognized object file at offset %d", name, off)
+				continue
+			}
+ 			f.MustSeek(h.off, 0)
+ 			h.ld(ctxt, f, h.pkg, h.length, h.pn)
+ 		}
+diff --git a/src/cmd/link/internal/ld/config.go b/src/cmd/link/internal/ld/config.go
+index ae0d752..20f1d0b 100644
+--- a/src/cmd/link/internal/ld/config.go
+++ b/src/cmd/link/internal/ld/config.go
+@@ -241,6 +241,10 @@
+ 		return true, "dynamically linking with a shared library"
+ 	}
+ 
+	if unknownObjFormat {
+		return true, "some input objects have an unrecognized file format"
+	}
+
+ 	return false, ""
+ }
+ 
+@@ -248,7 +252,7 @@
+ //
+ // It is called after flags are processed and inputs are processed,
+ // so the ctxt.LinkMode variable has an initial value from the -linkmode
+-// flag and the iscgo externalobj variables are set.
+// flag and the iscgo, externalobj, and unknownObjFormat variables are set.
+ func determineLinkMode(ctxt *Link) {
+ 	extNeeded, extReason := mustLinkExternal(ctxt)
+ 	via := ""
+diff --git a/src/cmd/link/internal/ld/lib.go b/src/cmd/link/internal/ld/lib.go
+index e8f001b..644faeb 100644
+--- a/src/cmd/link/internal/ld/lib.go
+++ b/src/cmd/link/internal/ld/lib.go
+@@ -343,10 +343,16 @@
+ const pkgdef = "__.PKGDEF"
+ 
+ var (
+-	// Set if we see an object compiled by the host compiler that is not
+-	// from a package that is known to support internal linking mode.
+	// externalobj is set to true if we see an object compiled by
+	// the host compiler that is not from a package that is known
+	// to support internal linking mode.
+ 	externalobj = false
+-	theline     string
+
+	// unknownObjFormat is set to true if we see an object whose
+	// format we don't recognize.
+	unknownObjFormat = false
+
+	theline string
+ )
+ 
+ func Lflag(ctxt *Link, arg string) {
+@@ -1065,6 +1071,10 @@
+ 		}
+ 
+ 		f.MustSeek(h.off, 0)
+		if h.ld == nil {
+			Errorf(nil, "%s: unrecognized object file format", h.pn)
+			continue
+		}
+ 		h.ld(ctxt, f, h.pkg, h.length, h.pn)
+ 		f.Close()
+ 	}
+@@ -1855,6 +1865,14 @@
+ 		return ldhostobj(ldxcoff, ctxt.HeadType, f, pkg, length, pn, file)
+ 	}
+ 
+	if c1 != 'g' || c2 != 'o' || c3 != ' ' || c4 != 'o' {
+		// An unrecognized object is just passed to the external linker.
+		// If we try to read symbols from this object, we will
+		// report an error at that time.
+		unknownObjFormat = true
+		return ldhostobj(nil, ctxt.HeadType, f, pkg, length, pn, file)
+	}
+
+ 	/* check the header */
+ 	line, err := f.ReadString('\n')
+ 	if err != nil {
--- a/SOURCES/fedora.go
+++ b/SOURCES/fedora.go
@ -0,0 +1,7 @@
+// +build rpm_crashtraceback
+
+package runtime
+
+func init() {
+	setTraceback("crash")
+}
--- a/SOURCES/fix_TestScript_list_std.patch
+++ b/SOURCES/fix_TestScript_list_std.patch
@ -0,0 +1,13 @@
+diff --git a/src/cmd/go/testdata/script/list_std.txt b/src/cmd/go/testdata/script/list_std.txt
+index 6ab1bd1674..4a00e436fd 100644
+--- a/src/cmd/go/testdata/script/list_std.txt
+++ b/src/cmd/go/testdata/script/list_std.txt
+@@ -6,7 +6,7 @@ env GO111MODULE=off
+ # Listing GOROOT should only find standard packages.
+ cd $GOROOT/src
+ go list -f '{{if not .Standard}}{{.ImportPath}}{{end}}' ./...
+-! stdout .
+stdout _$GOROOT
+ 
+ # Standard packages should include cmd, but not cmd/vendor.
+ go list ./...
--- a/SOURCES/go1.5-zoneinfo_testing_only.patch
+++ b/SOURCES/go1.5-zoneinfo_testing_only.patch
@ -0,0 +1,70 @@
+diff -up go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/internal_test.go.time go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/internal_test.go
+--- go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/internal_test.go.time	2017-12-05 01:10:10.000000000 +0100
+++ go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/internal_test.go	2017-12-05 14:55:10.574637475 +0100
+@@ -4,13 +4,15 @@
+ 
+ package time
+ 
+import "runtime"
+
+ func init() {
+ 	// force US/Pacific for time zone tests
+ 	ForceUSPacificForTesting()
+ }
+ 
+ func initTestingZone() {
+-	z, err := loadLocation("America/Los_Angeles", zoneSources[len(zoneSources)-1:])
+	z, err := loadLocation("America/Los_Angeles", zoneSources)
+ 	if err != nil {
+ 		panic("cannot load America/Los_Angeles for testing: " + err.Error())
+ 	}
+@@ -21,8 +23,9 @@ func initTestingZone() {
+ var OrigZoneSources = zoneSources
+ 
+ func forceZipFileForTesting(zipOnly bool) {
+-	zoneSources = make([]string, len(OrigZoneSources))
+	zoneSources = make([]string, len(OrigZoneSources)+1)
+ 	copy(zoneSources, OrigZoneSources)
+	zoneSources = append(zoneSources, runtime.GOROOT()+"/lib/time/zoneinfo.zip")
+ 	if zipOnly {
+ 		zoneSources = zoneSources[len(zoneSources)-1:]
+ 	}
+diff -up go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_test.go.time go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_test.go
+--- go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_test.go.time	2017-12-05 01:10:10.000000000 +0100
+++ go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_test.go	2017-12-05 14:58:09.823109248 +0100
+@@ -8,6 +8,7 @@ import (
+ 	"fmt"
+ 	"os"
+ 	"reflect"
+	"runtime"
+ 	"testing"
+ 	"time"
+ )
+@@ -128,7 +129,7 @@ func TestLoadLocationFromTZData(t *testi
+ 		t.Fatal(err)
+ 	}
+ 
+-	tzinfo, err := time.LoadTzinfo(locationName, time.OrigZoneSources[len(time.OrigZoneSources)-1])
+	tzinfo, err := time.LoadTzinfo(locationName, runtime.GOROOT()+"/lib/time/zoneinfo.zip")
+ 	if err != nil {
+ 		t.Fatal(err)
+ 	}
+diff -up go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_unix.go.time go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_unix.go
+--- go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_unix.go.time	2017-12-05 01:10:10.000000000 +0100
+++ go-dd7cbf3a846c2cb125ac65173abaf6a8b9f903ff/src/time/zoneinfo_unix.go	2017-12-05 14:55:10.574637475 +0100
+@@ -12,7 +12,6 @@
+ package time
+ 
+ import (
+-	"runtime"
+ 	"syscall"
+ )
+ 
+@@ -22,7 +21,6 @@ var zoneSources = []string{
+ 	"/usr/share/zoneinfo/",
+ 	"/usr/share/lib/zoneinfo/",
+ 	"/usr/lib/locale/TZ/",
+-	runtime.GOROOT() + "/lib/time/zoneinfo.zip",
+ }
+ 
+ func initLocal() {
--- a/SOURCES/golang-1.15-warnCN.patch
+++ b/SOURCES/golang-1.15-warnCN.patch
@ -0,0 +1,25 @@
+diff --git a/src/crypto/x509/verify.go b/src/crypto/x509/verify.go
+index 50f4d4a..121fd1b 100644
+--- a/src/crypto/x509/verify.go
+++ b/src/crypto/x509/verify.go
+@@ -20,6 +20,9 @@ import (
+ 
+ // ignoreCN disables interpreting Common Name as a hostname. See issue 24151.
+ var ignoreCN = !strings.Contains(os.Getenv("GODEBUG"), "x509ignoreCN=0")
+// if using Common Name as a hostname is enabled via x509ignoreCN=0,
+// warnCN enables a warning whenever Common Name is interpreted as a hostname.
+var warnCN = strings.Contains(os.Getenv("GODEBUG"), "x509warnCN=1")
+ 
+ type InvalidReason int
+ 
+@@ -1078,6 +1081,10 @@ func (c *Certificate) VerifyHostname(h string) error {
+ 	names := c.DNSNames
+ 	if c.commonNameAsHostname() {
+ 		names = []string{c.Subject.CommonName}
+		if warnCN {
+			fmt.Fprintf(os.Stderr, "x509: Warning - certificate relies on legacy Common Name field. " +
+				"Using CN without SAN is deprecated and will not work in future versions.\n")
+		}
+ 	}
+ 
+ 	candidateName := toLowerCaseASCII(h) // Save allocations inside the loop.
--- a/SOURCES/golang-gdbinit
+++ b/SOURCES/golang-gdbinit
@ -0,0 +1 @@
+add-auto-load-safe-path /usr/lib/golang/src/pkg/runtime/runtime-gdb.py
--- a/SOURCES/golang-prelink.conf
+++ b/SOURCES/golang-prelink.conf
@ -0,0 +1,3 @@
+# there are ELF files in src which are testdata and shouldn't be modified
+-b /usr/lib/golang/src
+-b /usr/lib64/golang/src
--- a/SOURCES/ppc64le-vdso-segfault-fix.patch
+++ b/SOURCES/ppc64le-vdso-segfault-fix.patch
@ -0,0 +1,229 @@
+From 16ab7e49d4070c4f68e88836b123dbe6da8bb015 Mon Sep 17 00:00:00 2001
+From: Derek Parker <parkerderek86@gmail.com>
+Date: Thu, 17 Jun 2021 20:22:40 +0000
+Subject: [PATCH] [release-branch.go1.16] runtime: fix crash during VDSO calls on PowerPC
+
+This patch reinstates a fix for PowerPC with regard to making VDSO calls
+while receiving a signal, and subsequently crashing. The crash happens
+because certain VDSO calls can modify the r30 register, which is where g
+is stored. This change was reverted for PowerPC because r30 is supposed
+to be a non-volatile register. This is true, but that only makes a
+guarantee across function calls, but not "within" a function call. This
+patch was seemingly fine before because the Linux kernel still had hand
+rolled assembly VDSO function calls, however with a recent change to C
+function calls it seems the compiler used can generate instructions
+which temporarily clobber r30. This means that when we receive a signal
+during one of these calls the value of r30 will not be the g as the
+runtime expects, causing a segfault.
+
+You can see from this assembly dump how the register is clobbered during
+the call:
+
+(the following is from a 5.13rc2 kernel)
+
+```
+Dump of assembler code for function __cvdso_clock_gettime_data:
+   0x00007ffff7ff0700 <+0>:     cmplwi  r4,15
+   0x00007ffff7ff0704 <+4>:     bgt     0x7ffff7ff07f0 <__cvdso_clock_gettime_data+240>
+   0x00007ffff7ff0708 <+8>:     li      r9,1
+   0x00007ffff7ff070c <+12>:    slw     r9,r9,r4
+   0x00007ffff7ff0710 <+16>:    andi.   r10,r9,2179
+   0x00007ffff7ff0714 <+20>:    beq     0x7ffff7ff0810 <__cvdso_clock_gettime_data+272>
+   0x00007ffff7ff0718 <+24>:    rldicr  r10,r4,4,59
+   0x00007ffff7ff071c <+28>:    lis     r9,32767
+   0x00007ffff7ff0720 <+32>:    std     r30,-16(r1)
+   0x00007ffff7ff0724 <+36>:    std     r31,-8(r1)
+   0x00007ffff7ff0728 <+40>:    add     r6,r3,r10
+   0x00007ffff7ff072c <+44>:    ori     r4,r9,65535
+   0x00007ffff7ff0730 <+48>:    lwz     r8,0(r3)
+   0x00007ffff7ff0734 <+52>:    andi.   r9,r8,1
+   0x00007ffff7ff0738 <+56>:    bne     0x7ffff7ff07d0 <__cvdso_clock_gettime_data+208>
+   0x00007ffff7ff073c <+60>:    lwsync
+   0x00007ffff7ff0740 <+64>:    mftb    r30      <---- RIGHT HERE
+=> 0x00007ffff7ff0744 <+68>:    ld      r12,40(r6)
+```
+
+What I believe is happening is that the kernel changed the PowerPC VDSO
+calls to use standard C calls instead of using hand rolled assembly. The
+hand rolled assembly calls never touched r30, so this change was safe to
+roll back. That does not seem to be the case anymore as on the 5.13rc2
+kernel the compiler *is* generating assembly which modifies r30, making
+this change again unsafe and causing a crash when the program receives a
+signal during these calls (which will happen often due to async
+preempt). This change happened here:
+https://lwn.net/ml/linux-kernel/235e5571959cfa89ced081d7e838ed5ff38447d2.1601365870.git.christophe.leroy@csgroup.eu/.
+
+I realize this was reverted due to unexplained hangs in PowerPC
+builders, but I think we should reinstate this change and investigate
+those issues separately:
+https://github.com/golang/go/commit/f4ca3c1e0a2066ca4f7bd6203866d282ed34acf2
+
+Fixes #46858
+
+Change-Id: Ib18d7bbfc80a1a9cb558f0098878d41081324b52
+GitHub-Last-Rev: c3002bcfca3ef58b27485e31328e6297b7a9dfe7
+GitHub-Pull-Request: golang/go#46767
+Reviewed-on: https://go-review.googlesource.com/c/go/+/328110
+Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
+TryBot-Result: Go Bot <gobot@golang.org>
+Reviewed-by: Cherry Mui <cherryyz@google.com>
+Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
+(cherry picked from commit 16e82be454cbf41299e6a055d54d489ca4612ee0)
+Reviewed-on: https://go-review.googlesource.com/c/go/+/334410
+Run-TryBot: Cherry Mui <cherryyz@google.com>
+---
+
+diff --git a/src/runtime/signal_unix.go b/src/runtime/signal_unix.go
+index 3f70707..89f936e 100644
+--- a/src/runtime/signal_unix.go
+++ b/src/runtime/signal_unix.go
+@@ -381,7 +381,7 @@
+ //go:nosplit
+ func sigFetchG(c *sigctxt) *g {
+ 	switch GOARCH {
+-	case "arm", "arm64":
+	case "arm", "arm64", "ppc64", "ppc64le":
+ 		if !iscgo && inVDSOPage(c.sigpc()) {
+ 			// When using cgo, we save the g on TLS and load it from there
+ 			// in sigtramp. Just use that.
+diff --git a/src/runtime/sys_linux_ppc64x.s b/src/runtime/sys_linux_ppc64x.s
+index fd69ee7..7be8c4c 100644
+--- a/src/runtime/sys_linux_ppc64x.s
+++ b/src/runtime/sys_linux_ppc64x.s
+@@ -215,15 +215,45 @@
+ 	MOVD	(g_sched+gobuf_sp)(R7), R1	// Set SP to g0 stack
+ 
+ noswitch:
+-	SUB	$16, R1			// Space for results
+-	RLDICR	$0, R1, $59, R1		// Align for C code
+	SUB	$16, R1                 // Space for results
+	RLDICR	$0, R1, $59, R1         // Align for C code
+ 	MOVD	R12, CTR
+ 	MOVD	R1, R4
+-	BL	(CTR)			// Call from VDSO
+-	MOVD	$0, R0			// Restore R0
+-	MOVD	0(R1), R3		// sec
+-	MOVD	8(R1), R5		// nsec
+-	MOVD	R15, R1			// Restore SP
+
+	// Store g on gsignal's stack, so if we receive a signal
+	// during VDSO code we can find the g.
+	// If we don't have a signal stack, we won't receive signal,
+	// so don't bother saving g.
+	// When using cgo, we already saved g on TLS, also don't save
+	// g here.
+	// Also don't save g if we are already on the signal stack.
+	// We won't get a nested signal.
+	MOVBZ	runtime·iscgo(SB), R22
+	CMP	R22, $0
+	BNE	nosaveg
+	MOVD	m_gsignal(R21), R22	// g.m.gsignal
+	CMP	R22, $0
+	BEQ	nosaveg
+
+	CMP	g, R22
+	BEQ	nosaveg
+	MOVD	(g_stack+stack_lo)(R22), R22 // g.m.gsignal.stack.lo
+	MOVD	g, (R22)
+
+	BL	(CTR)	// Call from VDSO
+
+	MOVD	$0, (R22)	// clear g slot, R22 is unchanged by C code
+
+	JMP	finish
+
+nosaveg:
+	BL	(CTR)	// Call from VDSO
+
+finish:
+	MOVD	$0, R0		// Restore R0
+	MOVD	0(R1), R3	// sec
+	MOVD	8(R1), R5	// nsec
+	MOVD	R15, R1		// Restore SP
+ 
+ 	// Restore vdsoPC, vdsoSP
+ 	// We don't worry about being signaled between the two stores.
+@@ -235,7 +265,7 @@
+ 	MOVD	32(R1), R6
+ 	MOVD	R6, m_vdsoPC(R21)
+ 
+-finish:
+return:
+ 	MOVD	R3, sec+0(FP)
+ 	MOVW	R5, nsec+8(FP)
+ 	RET
+@@ -246,7 +276,7 @@
+ 	SYSCALL $SYS_clock_gettime
+ 	MOVD	32(R1), R3
+ 	MOVD	40(R1), R5
+-	JMP	finish
+	JMP	return
+ 
+ TEXT runtime·nanotime1(SB),NOSPLIT,$16-8
+ 	MOVD	$1, R3		// CLOCK_MONOTONIC
+@@ -282,7 +312,37 @@
+ 	RLDICR	$0, R1, $59, R1		// Align for C code
+ 	MOVD	R12, CTR
+ 	MOVD	R1, R4
+-	BL	(CTR)			// Call from VDSO
+
+	// Store g on gsignal's stack, so if we receive a signal
+	// during VDSO code we can find the g.
+	// If we don't have a signal stack, we won't receive signal,
+	// so don't bother saving g.
+	// When using cgo, we already saved g on TLS, also don't save
+	// g here.
+	// Also don't save g if we are already on the signal stack.
+	// We won't get a nested signal.
+	MOVBZ	runtime·iscgo(SB), R22
+	CMP	R22, $0
+	BNE	nosaveg
+	MOVD	m_gsignal(R21), R22	// g.m.gsignal
+	CMP	R22, $0
+	BEQ	nosaveg
+
+	CMP	g, R22
+	BEQ	nosaveg
+	MOVD	(g_stack+stack_lo)(R22), R22 // g.m.gsignal.stack.lo
+	MOVD	g, (R22)
+
+	BL	(CTR)	// Call from VDSO
+
+	MOVD	$0, (R22)	// clear g slot, R22 is unchanged by C code
+
+	JMP	finish
+
+nosaveg:
+	BL	(CTR)	// Call from VDSO
+
+finish:
+ 	MOVD	$0, R0			// Restore R0
+ 	MOVD	0(R1), R3		// sec
+ 	MOVD	8(R1), R5		// nsec
+@@ -298,7 +358,7 @@
+ 	MOVD	32(R1), R6
+ 	MOVD	R6, m_vdsoPC(R21)
+ 
+-finish:
+return:
+ 	// sec is in R3, nsec in R5
+ 	// return nsec in R3
+ 	MOVD	$1000000000, R4
+@@ -313,7 +373,7 @@
+ 	SYSCALL $SYS_clock_gettime
+ 	MOVD	32(R1), R3
+ 	MOVD	40(R1), R5
+-	JMP	finish
+	JMP	return
+ 
+ TEXT runtime·rtsigprocmask(SB),NOSPLIT|NOFRAME,$0-28
+ 	MOVW	how+0(FP), R3
+@@ -366,7 +426,7 @@
+ 	// this might be called in external code context,
+ 	// where g is not set.
+ 	MOVBZ	runtime·iscgo(SB), R6
+-	CMP 	R6, $0
+	CMP	R6, $0
+ 	BEQ	2(PC)
+ 	BL	runtime·load_g(SB)
+ 
--- a/SOURCES/rhbz1952381.patch
+++ b/SOURCES/rhbz1952381.patch
--- a/SOURCES/skip_test_rhbz1939923.patch
+++ b/SOURCES/skip_test_rhbz1939923.patch
@ -0,0 +1,12 @@
+diff --git a/src/crypto/x509/x509_test.go b/src/crypto/x509/x509_test.go
+index 51dda16815..2d1e1b1e6e 100644
+--- a/src/crypto/x509/x509_test.go
+++ b/src/crypto/x509/x509_test.go
+@@ -2880,6 +2880,7 @@ func (bs *brokenSigner) Sign(_ io.Reader, _ []byte, _ crypto.SignerOpts) ([]byte
+ }
+ 
+ func TestCreateCertificateBrokenSigner(t *testing.T) {
+	t.Skip("TODO Fix me: rhbz#1939923")
+ 	template := &Certificate{
+ 		SerialNumber: big.NewInt(10),
+ 		DNSNames:     []string{"example.com"},
--- a/SPECS/golang.spec
+++ b/SPECS/golang.spec
				`@ -0,0 +1 @@`
				`97a713b08ed6438c1b488c29fb4c1b2d654831c8 SOURCES/go-go-1.16.6-3-openssl-fips.tar.gz`
				`@ -0,0 +1 @@`
				`add-auto-load-safe-path /usr/lib/golang/src/pkg/runtime/runtime-gdb.py`