Remove the golang POSIX semantics validation tests.

These were here as a commentary mostly, and now that the golang
upstream sources (targeted for 1.16 release) contain my patch
that enables POSIX semantics, [

   https://go-review.googlesource.com/c/go/+/210639

], and the syscall.TestSetuidEtc() test code has been enhanced to
run on all Go supported Linux architectures, there is no need to
keep a seed copy of it here.

Signed-off-by: Andrew G. Morgan <morgan@kernel.org>

6 files changed, 0 insertions, 239 deletions

diff --git a/contrib/golang/.gitignore b/contrib/golang/.gitignore
deleted file mode 100644
index 6b07a71..0000000
--- a/contrib/golang/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-posix
-posix-cgo
-posix-cgo.go
-posix.go
diff --git a/contrib/golang/Makefile b/contrib/golang/Makefile
deleted file mode 100644
index 4c497cf..0000000
--- a/contrib/golang/Makefile
+++ /dev/null
@@ -1,15 +0,0 @@
-GO := go
-
-all: posix.go posix-cgo.go
-	CGO_ENABLED=0 $(GO) build posix.go
-	$(GO) build posix-cgo.go
-
-posix.go: ptest.go posix.stub_go Makefile
-	sed -e '/\/\/ main_here/ r posix.stub_go' ptest.go > $@
-
-posix-cgo.go: ptest.go posix-cgo.stub_go Makefile
-	sed -e '/\/\/ main_here/ r posix-cgo.stub_go' ptest.go > $@
-
-clean:
-	rm -f posix.go posix
-	rm -f posix-cgo.go posix-cgo
diff --git a/contrib/golang/README b/contrib/golang/README
deleted file mode 100644
index 9c55ad5..0000000
--- a/contrib/golang/README
+++ /dev/null
@@ -1,23 +0,0 @@
-This directory contains some test code for system calls that need
-POSIX semantics to work under Go. There are 9 system calls wrapped in
-a nptl:setxid mechanism in glibc, and the following development patch
-adds support for these 9 to native Go.
-
-https://go-review.googlesource.com/c/go/+/210639/
-
-The Go support works with or without CGO_ENABLED.
-
-With a patched Go runtime library:
-
-  make
-  sudo ./posix
-  sudo ./posix-cgo
-
-should validate that all is working as intended.
-
-The above Go patch also exposes the mechanism that achieves this in
-the Go runtime, to ensure that the native Go "libcap/cap" package can
-work with and without CGO_ENABLED.
-
-Andrew G. Morgan <morgan@kernel.org>
-2019-12-10
diff --git a/contrib/golang/posix-cgo.stub_go b/contrib/golang/posix-cgo.stub_go
deleted file mode 100644
index 2878b1e..0000000
--- a/contrib/golang/posix-cgo.stub_go
+++ /dev/null
@@ -1,52 +0,0 @@
-
-// #include <stdio.h>
-// #include <stdlib.h>
-// #include <pthread.h>
-// #include <unistd.h>
-// #include <sys/types.h>
-//
-// pthread_t *t = NULL;
-// pthread_mutex_t mu;
-// int nts = 0;
-// int all_done = 0;
-//
-// static void *aFn(void *vargp) {
-//   int done = 0;
-//   while (!done) {
-//     usleep(100);
-//     pthread_mutex_lock(&mu);
-//     done = all_done;
-//     pthread_mutex_unlock(&mu);
-//   }
-//   printf("tid=%d done\n", pthread_self());
-//   return NULL;
-// }
-//
-// void trial(int argc) {
-//   nts = argc;
-//   t = calloc(nts, sizeof(pthread_t));
-//   pthread_mutex_init(&mu, NULL);
-//   for (int i = 0; i < nts; i++) {
-//     printf("launch C-pthread [%d]\n", i);
-//     pthread_create(&t[i], NULL, aFn, NULL);
-//   }
-// }
-//
-// void cleanup(void) {
-//   pthread_mutex_lock(&mu);
-//   all_done = 1;
-//   pthread_mutex_unlock(&mu);
-//   for (int i = 0; i < nts; i++) {
-//     printf("join C-pthread [%d]\n", i);
-//     pthread_join(t[i], NULL);
-//   }
-//   pthread_mutex_destroy(&mu);
-// }
-import "C"
-
-func main() {
-	const cts = 3
-	C.trial(cts)
-	defer C.cleanup()
-	ptest()
-}
diff --git a/contrib/golang/posix.stub_go b/contrib/golang/posix.stub_go
deleted file mode 100644
index d76c469..0000000
--- a/contrib/golang/posix.stub_go
+++ /dev/null
@@ -1,5 +0,0 @@
-
-func main() {
-	log.Print("Running pure Go test")
-	ptest()
-}
diff --git a/contrib/golang/ptest.go b/contrib/golang/ptest.go
deleted file mode 100644
index c8d7d71..0000000
--- a/contrib/golang/ptest.go
+++ /dev/null
@@ -1,140 +0,0 @@
-// Program posix is a test case to confirm that Go is capable of
-// exhibiting posix semantics for system calls.
-//
-// This code is a template for two programs: posix.go and posix-cgo.go
-// which are built by the Makefile to using sed.
-package main
-
-import (
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"strings"
-	"syscall"
-)
-
-// main_here
-
-func dumpStatus(testCase string, err error, filter, expect string) bool {
-	fmt.Printf("%s [%v]:\n", testCase, err)
-	var failed bool
-	pid := syscall.Getpid()
-	fs, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/task", pid))
-	if err != nil {
-		log.Fatal(err)
-	}
-	for _, f := range fs {
-		tf := fmt.Sprintf("/proc/%s/status", f.Name())
-		d, err := ioutil.ReadFile(tf)
-		if err != nil {
-			fmt.Println(tf, err)
-			failed = true
-			continue
-		}
-		lines := strings.Split(string(d), "\n")
-		for _, line := range lines {
-			if strings.HasPrefix(line, filter) {
-				fails := line != expect
-				failure := ""
-				if fails {
-					failed = fails
-					failure = " (bad)"
-				}
-				fmt.Printf("%s %s%s\n", tf, line, failure)
-				break
-			}
-		}
-	}
-	return failed
-}
-
-func ptest() {
-	var err error
-	var bad bool
-
-	// egid setting
-	bad = bad || dumpStatus("initial state", nil, "Gid:", "Gid:\t0\t0\t0\t0")
-	err = syscall.Setegid(1001)
-	bad = bad || dumpStatus("setegid(1001) state", err, "Gid:", "Gid:\t0\t1001\t0\t1001")
-	err = syscall.Setegid(1002)
-	bad = bad || dumpStatus("setegid(1002) state", err, "Gid:", "Gid:\t0\t1002\t0\t1002")
-	err = syscall.Setegid(0)
-	bad = bad || dumpStatus("setegid(0) state", err, "Gid:", "Gid:\t0\t0\t0\t0")
-
-	// euid setting (no way back from this one)
-	bad = bad || dumpStatus("initial euid", nil, "Uid:", "Uid:\t0\t0\t0\t0")
-	err = syscall.Seteuid(1)
-	bad = bad || dumpStatus("seteuid(1)", err, "Uid:", "Uid:\t0\t1\t0\t1")
-	err = syscall.Seteuid(0)
-	bad = bad || dumpStatus("seteuid(0)", err, "Uid:", "Uid:\t0\t0\t0\t0")
-
-	// gid setting
-	bad = bad || dumpStatus("initial state", nil, "Gid:", "Gid:\t0\t0\t0\t0")
-	err = syscall.Setgid(1001)
-	bad = bad || dumpStatus("setgid(1001) state", err, "Gid:", "Gid:\t1001\t1001\t1001\t1001")
-	err = syscall.Setgid(1002)
-	bad = bad || dumpStatus("setgid(1002) state", err, "Gid:", "Gid:\t1002\t1002\t1002\t1002")
-	err = syscall.Setgid(0)
-	bad = bad || dumpStatus("setgid(0) state", err, "Gid:", "Gid:\t0\t0\t0\t0")
-
-	// groups setting
-	bad = bad || dumpStatus("initial groups", nil, "Groups:", "Groups:\t0 ")
-	err = syscall.Setgroups([]int{0, 1, 2, 3})
-	bad = bad || dumpStatus("setgroups(0,1,2,3)", err, "Groups:", "Groups:\t0 1 2 3 ")
-	err = syscall.Setgroups([]int{3, 2, 1})
-	bad = bad || dumpStatus("setgroups(2,3,1)", err, "Groups:", "Groups:\t1 2 3 ")
-	err = syscall.Setgroups(nil)
-	bad = bad || dumpStatus("setgroups(nil)", err, "Groups:", "Groups:\t ")
-	err = syscall.Setgroups([]int{0})
-	bad = bad || dumpStatus("setgroups(0)", err, "Groups:", "Groups:\t0 ")
-
-	// regid setting
-	bad = bad || dumpStatus("initial state", nil, "Gid:", "Gid:\t0\t0\t0\t0")
-	err = syscall.Setregid(1001, 0)
-	bad = bad || dumpStatus("setregid(1001) state", err, "Gid:", "Gid:\t1001\t0\t0\t0")
-	err = syscall.Setregid(0, 1002)
-	bad = bad || dumpStatus("setregid(1002) state", err, "Gid:", "Gid:\t0\t1002\t1002\t1002")
-	err = syscall.Setregid(0, 0)
-	bad = bad || dumpStatus("setregid(0) state", err, "Gid:", "Gid:\t0\t0\t0\t0")
-
-	// reuid setting
-	bad = bad || dumpStatus("initial state", nil, "Uid:", "Uid:\t0\t0\t0\t0")
-	err = syscall.Setreuid(1, 0)
-	bad = bad || dumpStatus("setreuid(1,0) state", err, "Uid:", "Uid:\t1\t0\t0\t0")
-	err = syscall.Setreuid(0, 2)
-	bad = bad || dumpStatus("setreuid(0,2) state", err, "Uid:", "Uid:\t0\t2\t2\t2")
-	err = syscall.Setreuid(0, 0)
-	bad = bad || dumpStatus("setreuid(0) state", err, "Uid:", "Uid:\t0\t0\t0\t0")
-
-	// resgid setting
-	bad = bad || dumpStatus("initial state", nil, "Gid:", "Gid:\t0\t0\t0\t0")
-	err = syscall.Setresgid(1, 0, 2)
-	bad = bad || dumpStatus("setresgid(1,0,2) state", err, "Gid:", "Gid:\t1\t0\t2\t0")
-	err = syscall.Setresgid(0, 2, 1)
-	bad = bad || dumpStatus("setresgid(0,2,1) state", err, "Gid:", "Gid:\t0\t2\t1\t2")
-	err = syscall.Setresgid(0, 0, 0)
-	bad = bad || dumpStatus("setresgid(0) state", err, "Gid:", "Gid:\t0\t0\t0\t0")
-
-	// resuid setting
-	bad = bad || dumpStatus("initial state", nil, "Uid:", "Uid:\t0\t0\t0\t0")
-	err = syscall.Setresuid(1, 0, 2)
-	bad = bad || dumpStatus("setresuid(1,0,2) state", err, "Uid:", "Uid:\t1\t0\t2\t0")
-	err = syscall.Setresuid(0, 2, 1)
-	bad = bad || dumpStatus("setresuid(0,2,1) state", err, "Uid:", "Uid:\t0\t2\t1\t2")
-	err = syscall.Setresuid(0, 0, 0)
-	bad = bad || dumpStatus("setresuid(0) state", err, "Uid:", "Uid:\t0\t0\t0\t0")
-
-	// uid setting (no way back from this one)
-	bad = bad || dumpStatus("initial uid", nil, "Uid:", "Uid:\t0\t0\t0\t0")
-	err = syscall.Setuid(1)
-	bad = bad || dumpStatus("setuid(1)", err, "Uid:", "Uid:\t1\t1\t1\t1")
-	err = syscall.Setuid(0)
-	bad = bad || dumpStatus("setuid(0)", err, "Uid:", "Uid:\t1\t1\t1\t1")
-
-	if bad {
-		log.Print("TEST FAILED")
-		os.Exit(1)
-	}
-	log.Print("TEST PASSED")
-}