tools/testing/selftests/riscv/mm/mmap_bottomup.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 #include <sys/mman.h>
   3 #include <mmap_test.h>
   4
   5 #include "../../kselftest_harness.h"
   6
   7 TEST(infinite_rlimit)
   8 {
   9 // Only works on 64 bit
  10 #if __riscv_xlen == 64
  11         struct addresses mmap_addresses;
  12
  13         EXPECT_EQ(BOTTOM_UP, memory_layout());
  14
  15         do_mmaps(&mmap_addresses);
  16
  17         EXPECT_NE(MAP_FAILED, mmap_addresses.no_hint);
  18         EXPECT_NE(MAP_FAILED, mmap_addresses.on_37_addr);
  19         EXPECT_NE(MAP_FAILED, mmap_addresses.on_38_addr);
  20         EXPECT_NE(MAP_FAILED, mmap_addresses.on_46_addr);
  21         EXPECT_NE(MAP_FAILED, mmap_addresses.on_47_addr);
  22         EXPECT_NE(MAP_FAILED, mmap_addresses.on_55_addr);
  23         EXPECT_NE(MAP_FAILED, mmap_addresses.on_56_addr);
  24
  25         EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.no_hint);
  26         EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_37_addr);
  27         EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_38_addr);
  28         EXPECT_GT(1UL << 38, (unsigned long)mmap_addresses.on_46_addr);
  29         EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_47_addr);
  30         EXPECT_GT(1UL << 47, (unsigned long)mmap_addresses.on_55_addr);
  31         EXPECT_GT(1UL << 56, (unsigned long)mmap_addresses.on_56_addr);
  32 #endif
  33 }
  34
  35 TEST_HARNESS_MAIN