Release Cosmopolitan v3.5.6

Author: jart

libc/integral/normalize.inc

@@ -4,7 +4,7 @@
 
 #define __COSMOPOLITAN_MAJOR__ 3
 #define __COSMOPOLITAN_MINOR__ 5
-#define __COSMOPOLITAN_PATCH__ 5
+#define __COSMOPOLITAN_PATCH__ 6
 #define __COSMOPOLITAN__                                                   \
   (100000000 * __COSMOPOLITAN_MAJOR__ + 1000000 * __COSMOPOLITAN_MINOR__ + \
    __COSMOPOLITAN_PATCH__)

libc/intrin/mmap.c

@@ -146,9 +146,7 @@ static int __muntrack(char *addr, size_t size, int pagesz,
       __maps.count -= 1;
       __maps_check();
     } else if (IsWindows()) {
-      // you can't carve up memory maps on windows. our mmap() makes
-      // this not a problem (for non-enormous memory maps) by making
-      // independent mappings for each 64 kb granule, under the hood
+      // you can't carve up memory maps on windows ;_;
       rc = einval();
     } else if (addr <= map_addr) {
       // shave off lefthand side of mapping

test/libc/calls/sigaltstack_test.c

@@ -32,9 +32,8 @@ TEST(sigaltstack, badFlag) {
 
 TEST(sigaltstack, disable) {
   struct sigaltstack ss;
+  EXPECT_SYS(0, 0, sigaltstack(0, &ss));
   ss.ss_flags = SS_DISABLE;
-  ss.ss_size = 0;
-  ss.ss_sp = 0;
   EXPECT_SYS(0, 0, sigaltstack(&ss, 0));
   EXPECT_SYS(0, 0, sigaltstack(0, &ss));
   EXPECT_EQ(SS_DISABLE, ss.ss_flags);

test/libc/intrin/munmap_test.c

@@ -183,7 +183,9 @@ TEST(munmap, tinyFile_preciseUnmapSize) {
 
 // clang-format off
 TEST(munmap, tinyFile_mapThriceUnmapOnce) {
-  char *p = __maps_randaddr();
+  char *p;
+  ASSERT_NE(MAP_FAILED, (p = mmap(0, gransz*4, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)));
+  ASSERT_SYS(0, 0, munmap(p, gransz*4));
   ASSERT_SYS(0, 3, open("doge", O_RDWR | O_CREAT | O_TRUNC, 0644));
   ASSERT_SYS (0, 5, write(3, "hello", 5));
   ASSERT_EQ(p+gransz*0, mmap(p+gransz*0, gransz, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_FIXED, -1, 0));