fix some compiler warnings

src/jlapi.c

@@ -618,8 +618,7 @@ static NOINLINE int true_main(int argc, char *argv[])
 static void lock_low32(void)
 {
 #if defined(_OS_WINDOWS_) && defined(_P64) && defined(JL_DEBUG_BUILD)
-    // Wine currently has a that causes it to answer VirtualQuery incorrectly.
-    // block usage of the 32-bit address space on win64, to catch pointer cast errors
+    // Prevent usage of the 32-bit address space on Win64, to catch pointer cast errors.
     char *const max32addr = (char*)0xffffffffL;
     SYSTEM_INFO info;
     MEMORY_BASIC_INFORMATION meminfo;
@@ -643,11 +642,12 @@ static void lock_low32(void)
                 if ((char*)p != first)
                     // Wine and Windows10 seem to have issues with reporting memory access information correctly
                     // so we sometimes end up with unexpected results - this is just ignore those and continue
-                    // this is just a debugging aid to help find accidental pointer truncation anyways, so it's not critical
+                    // this is just a debugging aid to help find accidental pointer truncation anyways,
+                    // so it is not critical
                     VirtualFree(p, 0, MEM_RELEASE);
             }
         }
-        meminfo.BaseAddress += meminfo.RegionSize;
+        meminfo.BaseAddress = (void*)((char*)meminfo.BaseAddress + meminfo.RegionSize);
     }
 #endif
     return;
@@ -656,16 +656,16 @@ static void lock_low32(void)
 // Actual definition in `ast.c`
 void jl_lisp_prompt(void);
 
-static void rr_detach_teleport(void) {
 #ifdef _OS_LINUX_
+static void rr_detach_teleport(void) {
 #define RR_CALL_BASE 1000
 #define SYS_rrcall_detach_teleport (RR_CALL_BASE + 9)
     int err = syscall(SYS_rrcall_detach_teleport, 0, 0, 0, 0, 0, 0);
     if (err < 0 || jl_running_under_rr(1)) {
         jl_error("Failed to detach from rr session");
     }
-#endif
 }
+#endif
 
 JL_DLLEXPORT int jl_repl_entrypoint(int argc, char *argv[])
 {
@@ -682,16 +682,18 @@ JL_DLLEXPORT int jl_repl_entrypoint(int argc, char *argv[])
         memmove(&argv[1], &argv[2], (argc-2)*sizeof(void*));
         argc--;
     }
-    char **orig_argv = argv;
-    jl_parse_opts(&argc, (char***)&argv);
+    char **new_argv = argv;
+    jl_parse_opts(&argc, (char***)&new_argv);
 
     // The parent process requested that we detach from the rr session.
     // N.B.: In a perfect world, we would only do this for the portion of
     // the execution where we actually need to exclude rr (e.g. because we're
     // testing for the absence of a memory-model-dependent bug).
     if (jl_options.rr_detach && jl_running_under_rr(0)) {
+#ifdef _OS_LINUX_
         rr_detach_teleport();
-        execv("/proc/self/exe", orig_argv);
+        execv("/proc/self/exe", argv);
+#endif
         jl_error("Failed to self-execute");
     }
 
@@ -701,7 +703,7 @@ JL_DLLEXPORT int jl_repl_entrypoint(int argc, char *argv[])
         jl_lisp_prompt();
         return 0;
     }
-    int ret = true_main(argc, (char**)argv);
+    int ret = true_main(argc, (char**)new_argv);
     jl_atexit_hook(ret);
     return ret;
 }

src/signals-mach.c

@@ -594,7 +594,7 @@ void *mach_profile_listener(void *arg)
                 bt_data_prof[bt_size_cur++].uintptr = ptls->tid + 1;
 
                 // store task id
-                bt_data_prof[bt_size_cur++].uintptr = (uintptr_t)jl_atomic_load_relaxed(&ptls->current_task);
+                bt_data_prof[bt_size_cur++].jlvalue = (jl_value_t*)jl_atomic_load_relaxed(&ptls->current_task);
 
                 // store cpu cycle clock
                 bt_data_prof[bt_size_cur++].uintptr = cycleclock();

src/sys.c

@@ -865,12 +865,11 @@ JL_DLLEXPORT int jl_dllist(jl_array_t *list)
     } while (cb < cbNeeded);
     for (i = 0; i < cbNeeded / sizeof(HMODULE); i++) {
         const char *path = jl_pathname_for_handle(hMods[i]);
-        // XXX: change to jl_arrayset if array storage allocation for Array{String,1} changes:
         if (path == NULL)
             continue;
         jl_array_grow_end((jl_array_t*)list, 1);
         jl_value_t *v = jl_cstr_to_string(path);
-        free(path);
+        free((char*)path);
         jl_array_ptr_set(list, jl_array_dim0(list) - 1, v);
     }
     free(hMods);

src/threading.c

@@ -88,7 +88,7 @@ __attribute__((constructor)) void jl_init_tls(void)
 
 JL_CONST_FUNC jl_gcframe_t **jl_get_pgcstack(void) JL_NOTSAFEPOINT
 {
-    return pthread_getspecific(jl_pgcstack_key);
+    return (jl_gcframe_t**)pthread_getspecific(jl_pgcstack_key);
 }
 
 void jl_set_pgcstack(jl_gcframe_t **pgcstack) JL_NOTSAFEPOINT
@@ -176,7 +176,7 @@ JL_DLLEXPORT void jl_set_safe_restore(jl_jmp_buf *sr)
 JL_CONST_FUNC jl_gcframe_t **jl_get_pgcstack(void) JL_NOTSAFEPOINT
 {
     SAVE_ERRNO;
-    jl_gcframe_t **pgcstack = (jl_ptls_t)TlsGetValue(jl_pgcstack_key);
+    jl_gcframe_t **pgcstack = (jl_gcframe_t**)TlsGetValue(jl_pgcstack_key);
     LOAD_ERRNO;
     return pgcstack;
 }