Add test invalid_interpreter.

Retrieving the interpreter_base fails if done after
interpreter gets invalidated.
Related to #2740

CMakeLists.txt

@@ -1215,6 +1215,7 @@ set(TESTS_WITH_PROGRAM
   x86/int3_ok
   interrupt
   intr_ptrace_decline
+  invalid_interpreter
   invalid_jump
   jit_proc_mem
   link

src/test/invalid_interpreter.c

@@ -0,0 +1,26 @@
+/* -*- Mode: C; tab-width: 8; c-basic-offset: 2; indent-tabs-mode: nil; -*- */
+
+#include "util.h"
+
+size_t page_size;
+
+static void breakpoint(void) {
+  int break_here = 1;
+  (void)break_here;
+}
+
+void callback(__attribute__((unused)) uint64_t env, char* name, map_properties_t* props) {
+  if (strstr(name, "/ld-") != 0) {
+    test_assert(0 == munmap((void*)(uintptr_t)props->start, page_size));
+    void* p = (void*)mmap((void*)(uintptr_t)props->start, page_size, PROT_NONE, MAP_PRIVATE | MAP_FIXED | MAP_ANONYMOUS, -1, 0);
+    test_assert(p != MAP_FAILED);
+  }
+}
+
+int main(void) {
+  page_size = sysconf(_SC_PAGESIZE);
+  FILE* maps_file = fopen("/proc/self/maps", "r");
+  iterate_maps(0, callback, maps_file);
+  breakpoint();
+  return 0;
+}

src/test/invalid_interpreter.py

@@ -0,0 +1,12 @@
+from util import *
+
+send_gdb('break breakpoint')
+expect_gdb('Breakpoint 1')
+send_gdb('c')
+expect_gdb('Breakpoint 1')
+send_gdb('checkpoint')
+expect_gdb('Checkpoint 1 at')
+send_gdb('restart 1')
+expect_gdb('stopped')
+
+ok()

src/test/invalid_interpreter.run

@@ -0,0 +1,3 @@
+source `dirname $0`/util.sh
+record invalid_interpreter$bitness
+debug invalid_interpreter