diff options
Diffstat (limited to '')
-rw-r--r-- | tools/testing/selftests/riscv/mm/.gitignore | 2 | ||||
-rw-r--r-- | tools/testing/selftests/riscv/mm/Makefile | 15 | ||||
-rw-r--r-- | tools/testing/selftests/riscv/mm/mmap_bottomup.c | 12 | ||||
-rw-r--r-- | tools/testing/selftests/riscv/mm/mmap_default.c | 12 | ||||
-rw-r--r-- | tools/testing/selftests/riscv/mm/mmap_test.h | 23 | ||||
-rwxr-xr-x | tools/testing/selftests/riscv/mm/run_mmap.sh | 12 |
6 files changed, 76 insertions, 0 deletions
diff --git a/tools/testing/selftests/riscv/mm/.gitignore b/tools/testing/selftests/riscv/mm/.gitignore new file mode 100644 index 000000000000..5c2c57cb950c --- /dev/null +++ b/tools/testing/selftests/riscv/mm/.gitignore @@ -0,0 +1,2 @@ +mmap_bottomup +mmap_default diff --git a/tools/testing/selftests/riscv/mm/Makefile b/tools/testing/selftests/riscv/mm/Makefile new file mode 100644 index 000000000000..4664ed79e20b --- /dev/null +++ b/tools/testing/selftests/riscv/mm/Makefile @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2021 ARM Limited +# Originally tools/testing/arm64/abi/Makefile + +# Additional include paths needed by kselftest.h and local headers +CFLAGS += -std=gnu99 -I. + +TEST_GEN_FILES := mmap_default mmap_bottomup + +TEST_PROGS := run_mmap.sh + +include ../../lib.mk + +$(OUTPUT)/mm: mmap_default.c mmap_bottomup.c mmap_tests.h + $(CC) -o$@ $(CFLAGS) $(LDFLAGS) $^ diff --git a/tools/testing/selftests/riscv/mm/mmap_bottomup.c b/tools/testing/selftests/riscv/mm/mmap_bottomup.c new file mode 100644 index 000000000000..f9ccae50349b --- /dev/null +++ b/tools/testing/selftests/riscv/mm/mmap_bottomup.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <sys/mman.h> +#include <mmap_test.h> + +#include "../../kselftest_harness.h" + +TEST(infinite_rlimit) +{ + EXPECT_EQ(BOTTOM_UP, memory_layout()); +} + +TEST_HARNESS_MAIN diff --git a/tools/testing/selftests/riscv/mm/mmap_default.c b/tools/testing/selftests/riscv/mm/mmap_default.c new file mode 100644 index 000000000000..3f53b6ecc326 --- /dev/null +++ b/tools/testing/selftests/riscv/mm/mmap_default.c @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <sys/mman.h> +#include <mmap_test.h> + +#include "../../kselftest_harness.h" + +TEST(default_rlimit) +{ + EXPECT_EQ(TOP_DOWN, memory_layout()); +} + +TEST_HARNESS_MAIN diff --git a/tools/testing/selftests/riscv/mm/mmap_test.h b/tools/testing/selftests/riscv/mm/mmap_test.h new file mode 100644 index 000000000000..75918d15919f --- /dev/null +++ b/tools/testing/selftests/riscv/mm/mmap_test.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef _TESTCASES_MMAP_TEST_H +#define _TESTCASES_MMAP_TEST_H +#include <sys/mman.h> +#include <sys/resource.h> +#include <stddef.h> +#include <strings.h> +#include "../../kselftest_harness.h" + +#define TOP_DOWN 0 +#define BOTTOM_UP 1 + +#define PROT (PROT_READ | PROT_WRITE) +#define FLAGS (MAP_PRIVATE | MAP_ANONYMOUS) + +static inline int memory_layout(void) +{ + void *value1 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0); + void *value2 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0); + + return value2 > value1; +} +#endif /* _TESTCASES_MMAP_TEST_H */ diff --git a/tools/testing/selftests/riscv/mm/run_mmap.sh b/tools/testing/selftests/riscv/mm/run_mmap.sh new file mode 100755 index 000000000000..ca5ad7c48bad --- /dev/null +++ b/tools/testing/selftests/riscv/mm/run_mmap.sh @@ -0,0 +1,12 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 + +original_stack_limit=$(ulimit -s) + +./mmap_default + +# Force mmap_bottomup to be ran with bottomup memory due to +# the unlimited stack +ulimit -s unlimited +./mmap_bottomup +ulimit -s $original_stack_limit |