736 lines
22 KiB
Diff
736 lines
22 KiB
Diff
From 4bd660be40967cd69072f69ebc2ad32bfcc1f206 Mon Sep 17 00:00:00 2001
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From: "H.J. Lu" <hjl.tools@gmail.com>
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Date: Tue, 23 Feb 2021 06:33:10 -0800
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Subject: [PATCH] x86: Add string/memory function tests in RTM region
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Content-type: text/plain; charset=UTF-8
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At function exit, AVX optimized string/memory functions have VZEROUPPER
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which triggers RTM abort. When such functions are called inside a
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transactionally executing RTM region, RTM abort causes severe performance
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degradation. Add tests to verify that string/memory functions won't
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cause RTM abort in RTM region.
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---
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sysdeps/x86/Makefile | 23 +++++++++++
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sysdeps/x86/tst-memchr-rtm.c | 54 ++++++++++++++++++++++++++
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sysdeps/x86/tst-memcmp-rtm.c | 52 +++++++++++++++++++++++++
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sysdeps/x86/tst-memmove-rtm.c | 53 ++++++++++++++++++++++++++
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sysdeps/x86/tst-memrchr-rtm.c | 54 ++++++++++++++++++++++++++
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sysdeps/x86/tst-memset-rtm.c | 45 ++++++++++++++++++++++
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sysdeps/x86/tst-strchr-rtm.c | 54 ++++++++++++++++++++++++++
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sysdeps/x86/tst-strcpy-rtm.c | 53 ++++++++++++++++++++++++++
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sysdeps/x86/tst-string-rtm.h | 72 +++++++++++++++++++++++++++++++++++
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sysdeps/x86/tst-strlen-rtm.c | 53 ++++++++++++++++++++++++++
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sysdeps/x86/tst-strncmp-rtm.c | 52 +++++++++++++++++++++++++
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sysdeps/x86/tst-strrchr-rtm.c | 53 ++++++++++++++++++++++++++
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12 files changed, 618 insertions(+)
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create mode 100644 sysdeps/x86/tst-memchr-rtm.c
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create mode 100644 sysdeps/x86/tst-memcmp-rtm.c
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create mode 100644 sysdeps/x86/tst-memmove-rtm.c
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create mode 100644 sysdeps/x86/tst-memrchr-rtm.c
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create mode 100644 sysdeps/x86/tst-memset-rtm.c
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create mode 100644 sysdeps/x86/tst-strchr-rtm.c
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create mode 100644 sysdeps/x86/tst-strcpy-rtm.c
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create mode 100644 sysdeps/x86/tst-string-rtm.h
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create mode 100644 sysdeps/x86/tst-strlen-rtm.c
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create mode 100644 sysdeps/x86/tst-strncmp-rtm.c
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create mode 100644 sysdeps/x86/tst-strrchr-rtm.c
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diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
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index 59e928e9..5be71ada 100644
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--- a/sysdeps/x86/Makefile
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+++ b/sysdeps/x86/Makefile
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@@ -17,6 +17,29 @@ endif
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ifeq ($(subdir),string)
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sysdep_routines += cacheinfo
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+
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+tests += \
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+ tst-memchr-rtm \
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+ tst-memcmp-rtm \
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+ tst-memmove-rtm \
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+ tst-memrchr-rtm \
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+ tst-memset-rtm \
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+ tst-strchr-rtm \
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+ tst-strcpy-rtm \
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+ tst-strlen-rtm \
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+ tst-strncmp-rtm \
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+ tst-strrchr-rtm
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+
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+CFLAGS-tst-memchr-rtm.c += -mrtm
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+CFLAGS-tst-memcmp-rtm.c += -mrtm
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+CFLAGS-tst-memmove-rtm.c += -mrtm
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+CFLAGS-tst-memrchr-rtm.c += -mrtm
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+CFLAGS-tst-memset-rtm.c += -mrtm
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+CFLAGS-tst-strchr-rtm.c += -mrtm
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+CFLAGS-tst-strcpy-rtm.c += -mrtm
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+CFLAGS-tst-strlen-rtm.c += -mrtm
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+CFLAGS-tst-strncmp-rtm.c += -mrtm
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+CFLAGS-tst-strrchr-rtm.c += -mrtm
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endif
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ifneq ($(enable-cet),no)
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diff --git a/sysdeps/x86/tst-memchr-rtm.c b/sysdeps/x86/tst-memchr-rtm.c
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new file mode 100644
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index 00000000..e4749401
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--- /dev/null
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+++ b/sysdeps/x86/tst-memchr-rtm.c
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@@ -0,0 +1,54 @@
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+/* Test case for memchr inside a transactionally executing RTM region.
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+ Copyright (C) 2021 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <https://www.gnu.org/licenses/>. */
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+
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+#include <tst-string-rtm.h>
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+
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+#define LOOP 3000
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+#define STRING_SIZE 1024
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+char string1[STRING_SIZE];
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+prepare (void)
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+{
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+ memset (string1, 'a', STRING_SIZE);
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+ string1[100] = 'c';
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+ string1[STRING_SIZE - 100] = 'c';
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+ char *p = memchr (string1, 'c', STRING_SIZE);
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+ if (p == &string1[100])
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+ return EXIT_SUCCESS;
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+ else
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+ return EXIT_FAILURE;
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+}
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+function (void)
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+{
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+ char *p = memchr (string1, 'c', STRING_SIZE);
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+ if (p == &string1[100])
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+ return 0;
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+ else
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+ return 1;
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+}
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+
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+static int
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+do_test (void)
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+{
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+ return do_test_1 ("memchr", LOOP, prepare, function);
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+}
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diff --git a/sysdeps/x86/tst-memcmp-rtm.c b/sysdeps/x86/tst-memcmp-rtm.c
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new file mode 100644
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index 00000000..e4c8a623
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--- /dev/null
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+++ b/sysdeps/x86/tst-memcmp-rtm.c
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@@ -0,0 +1,52 @@
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+/* Test case for memcmp inside a transactionally executing RTM region.
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+ Copyright (C) 2021 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <https://www.gnu.org/licenses/>. */
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+
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+#include <tst-string-rtm.h>
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+
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+#define LOOP 3000
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+#define STRING_SIZE 1024
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+char string1[STRING_SIZE];
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+char string2[STRING_SIZE];
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+prepare (void)
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+{
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+ memset (string1, 'a', STRING_SIZE);
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+ memset (string2, 'a', STRING_SIZE);
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+ if (memcmp (string1, string2, STRING_SIZE) == 0)
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+ return EXIT_SUCCESS;
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+ else
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+ return EXIT_FAILURE;
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+}
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+function (void)
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+{
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+ if (memcmp (string1, string2, STRING_SIZE) == 0)
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+ return 0;
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+ else
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+ return 1;
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+}
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+
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+static int
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+do_test (void)
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+{
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+ return do_test_1 ("memcmp", LOOP, prepare, function);
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+}
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diff --git a/sysdeps/x86/tst-memmove-rtm.c b/sysdeps/x86/tst-memmove-rtm.c
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new file mode 100644
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index 00000000..4bf97ef1
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--- /dev/null
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+++ b/sysdeps/x86/tst-memmove-rtm.c
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@@ -0,0 +1,53 @@
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+/* Test case for memmove inside a transactionally executing RTM region.
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+ Copyright (C) 2021 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C Library is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <https://www.gnu.org/licenses/>. */
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+
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+#include <tst-string-rtm.h>
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+
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+#define LOOP 3000
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+#define STRING_SIZE 1024
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+char string1[STRING_SIZE];
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+char string2[STRING_SIZE];
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+prepare (void)
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+{
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+ memset (string1, 'a', STRING_SIZE);
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+ if (memmove (string2, string1, STRING_SIZE) == string2
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+ && memcmp (string2, string1, STRING_SIZE) == 0)
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+ return EXIT_SUCCESS;
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+ else
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+ return EXIT_FAILURE;
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+}
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+function (void)
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+{
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+ if (memmove (string2, string1, STRING_SIZE) == string2
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+ && memcmp (string2, string1, STRING_SIZE) == 0)
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+ return 0;
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+ else
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+ return 1;
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+}
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+
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+static int
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+do_test (void)
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+{
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+ return do_test_1 ("memmove", LOOP, prepare, function);
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+}
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diff --git a/sysdeps/x86/tst-memrchr-rtm.c b/sysdeps/x86/tst-memrchr-rtm.c
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new file mode 100644
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index 00000000..a57a5a8e
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--- /dev/null
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+++ b/sysdeps/x86/tst-memrchr-rtm.c
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@@ -0,0 +1,54 @@
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+/* Test case for memrchr inside a transactionally executing RTM region.
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+ Copyright (C) 2021 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
|
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+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
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+ version 2.1 of the License, or (at your option) any later version.
|
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+
|
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+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, see
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+ <https://www.gnu.org/licenses/>. */
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+
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+#include <tst-string-rtm.h>
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+
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+#define LOOP 3000
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+#define STRING_SIZE 1024
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+char string1[STRING_SIZE];
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+prepare (void)
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+{
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+ memset (string1, 'a', STRING_SIZE);
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+ string1[100] = 'c';
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+ string1[STRING_SIZE - 100] = 'c';
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+ char *p = memrchr (string1, 'c', STRING_SIZE);
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+ if (p == &string1[STRING_SIZE - 100])
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+ return EXIT_SUCCESS;
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+ else
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+ return EXIT_FAILURE;
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+}
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+function (void)
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+{
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+ char *p = memrchr (string1, 'c', STRING_SIZE);
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+ if (p == &string1[STRING_SIZE - 100])
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+ return 0;
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+ else
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+ return 1;
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+}
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+
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+static int
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+do_test (void)
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+{
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+ return do_test_1 ("memrchr", LOOP, prepare, function);
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+}
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diff --git a/sysdeps/x86/tst-memset-rtm.c b/sysdeps/x86/tst-memset-rtm.c
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new file mode 100644
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index 00000000..bf343a4d
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--- /dev/null
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+++ b/sysdeps/x86/tst-memset-rtm.c
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@@ -0,0 +1,45 @@
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+/* Test case for memset inside a transactionally executing RTM region.
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+ Copyright (C) 2021 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
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+ <https://www.gnu.org/licenses/>. */
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+
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+#include <tst-string-rtm.h>
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+
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+#define LOOP 3000
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+#define STRING_SIZE 1024
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+char string1[STRING_SIZE];
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+prepare (void)
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+{
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+ memset (string1, 'a', STRING_SIZE);
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+ return EXIT_SUCCESS;
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+}
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+function (void)
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+{
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+ memset (string1, 'a', STRING_SIZE);
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+ return 0;
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+}
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+
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+static int
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+do_test (void)
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+{
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+ return do_test_1 ("memset", LOOP, prepare, function);
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+}
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diff --git a/sysdeps/x86/tst-strchr-rtm.c b/sysdeps/x86/tst-strchr-rtm.c
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new file mode 100644
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index 00000000..a82e29c0
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--- /dev/null
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+++ b/sysdeps/x86/tst-strchr-rtm.c
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@@ -0,0 +1,54 @@
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+/* Test case for strchr inside a transactionally executing RTM region.
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+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <https://www.gnu.org/licenses/>. */
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+
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+#include <tst-string-rtm.h>
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+
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+#define LOOP 3000
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+#define STRING_SIZE 1024
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+char string1[STRING_SIZE];
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+
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+__attribute__ ((noinline, noclone))
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+static int
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+prepare (void)
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+{
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+ memset (string1, 'a', STRING_SIZE - 1);
|
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+ string1[100] = 'c';
|
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+ string1[STRING_SIZE - 100] = 'c';
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+ char *p = strchr (string1, 'c');
|
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+ if (p == &string1[100])
|
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+ return EXIT_SUCCESS;
|
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+ else
|
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+ return EXIT_FAILURE;
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+}
|
|
+
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|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+function (void)
|
|
+{
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+ char *p = strchr (string1, 'c');
|
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+ if (p == &string1[100])
|
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+ return 0;
|
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+ else
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+ return 1;
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+}
|
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+
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+static int
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+do_test (void)
|
|
+{
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+ return do_test_1 ("strchr", LOOP, prepare, function);
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|
+}
|
|
diff --git a/sysdeps/x86/tst-strcpy-rtm.c b/sysdeps/x86/tst-strcpy-rtm.c
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|
new file mode 100644
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|
index 00000000..2b2a583f
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--- /dev/null
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+++ b/sysdeps/x86/tst-strcpy-rtm.c
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@@ -0,0 +1,53 @@
|
|
+/* Test case for strcpy inside a transactionally executing RTM region.
|
|
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <https://www.gnu.org/licenses/>. */
|
|
+
|
|
+#include <tst-string-rtm.h>
|
|
+
|
|
+#define LOOP 3000
|
|
+#define STRING_SIZE 1024
|
|
+char string1[STRING_SIZE];
|
|
+char string2[STRING_SIZE];
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+prepare (void)
|
|
+{
|
|
+ memset (string1, 'a', STRING_SIZE - 1);
|
|
+ if (strcpy (string2, string1) == string2
|
|
+ && strcmp (string2, string1) == 0)
|
|
+ return EXIT_SUCCESS;
|
|
+ else
|
|
+ return EXIT_FAILURE;
|
|
+}
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+function (void)
|
|
+{
|
|
+ if (strcpy (string2, string1) == string2
|
|
+ && strcmp (string2, string1) == 0)
|
|
+ return 0;
|
|
+ else
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static int
|
|
+do_test (void)
|
|
+{
|
|
+ return do_test_1 ("strcpy", LOOP, prepare, function);
|
|
+}
|
|
diff --git a/sysdeps/x86/tst-string-rtm.h b/sysdeps/x86/tst-string-rtm.h
|
|
new file mode 100644
|
|
index 00000000..d2470afa
|
|
--- /dev/null
|
|
+++ b/sysdeps/x86/tst-string-rtm.h
|
|
@@ -0,0 +1,72 @@
|
|
+/* Test string function in a transactionally executing RTM region.
|
|
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <https://www.gnu.org/licenses/>. */
|
|
+
|
|
+#include <string.h>
|
|
+#include <x86intrin.h>
|
|
+#include <sys/platform/x86.h>
|
|
+#include <support/check.h>
|
|
+#include <support/test-driver.h>
|
|
+
|
|
+static int
|
|
+do_test_1 (const char *name, unsigned int loop, int (*prepare) (void),
|
|
+ int (*function) (void))
|
|
+{
|
|
+ if (!CPU_FEATURE_USABLE (RTM))
|
|
+ return EXIT_UNSUPPORTED;
|
|
+
|
|
+ int status = prepare ();
|
|
+ if (status != EXIT_SUCCESS)
|
|
+ return status;
|
|
+
|
|
+ unsigned int i;
|
|
+ unsigned int naborts = 0;
|
|
+ unsigned int failed = 0;
|
|
+ for (i = 0; i < loop; i++)
|
|
+ {
|
|
+ failed |= function ();
|
|
+ if (_xbegin() == _XBEGIN_STARTED)
|
|
+ {
|
|
+ failed |= function ();
|
|
+ _xend();
|
|
+ }
|
|
+ else
|
|
+ {
|
|
+ failed |= function ();
|
|
+ ++naborts;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ if (failed)
|
|
+ FAIL_EXIT1 ("%s() failed", name);
|
|
+
|
|
+ if (naborts)
|
|
+ {
|
|
+ /* NB: Low single digit (<= 5%) noise-level aborts are normal for
|
|
+ TSX. */
|
|
+ double rate = 100 * ((double) naborts) / ((double) loop);
|
|
+ if (rate > 5)
|
|
+ FAIL_EXIT1 ("TSX abort rate: %.2f%% (%d out of %d)",
|
|
+ rate, naborts, loop);
|
|
+ }
|
|
+
|
|
+ return EXIT_SUCCESS;
|
|
+}
|
|
+
|
|
+static int do_test (void);
|
|
+
|
|
+#include <support/test-driver.c>
|
|
diff --git a/sysdeps/x86/tst-strlen-rtm.c b/sysdeps/x86/tst-strlen-rtm.c
|
|
new file mode 100644
|
|
index 00000000..0dcf14db
|
|
--- /dev/null
|
|
+++ b/sysdeps/x86/tst-strlen-rtm.c
|
|
@@ -0,0 +1,53 @@
|
|
+/* Test case for strlen inside a transactionally executing RTM region.
|
|
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <https://www.gnu.org/licenses/>. */
|
|
+
|
|
+#include <tst-string-rtm.h>
|
|
+
|
|
+#define LOOP 3000
|
|
+#define STRING_SIZE 1024
|
|
+char string1[STRING_SIZE];
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+prepare (void)
|
|
+{
|
|
+ memset (string1, 'a', STRING_SIZE - 1);
|
|
+ string1[STRING_SIZE - 100] = '\0';
|
|
+ size_t len = strlen (string1);
|
|
+ if (len == STRING_SIZE - 100)
|
|
+ return EXIT_SUCCESS;
|
|
+ else
|
|
+ return EXIT_FAILURE;
|
|
+}
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+function (void)
|
|
+{
|
|
+ size_t len = strlen (string1);
|
|
+ if (len == STRING_SIZE - 100)
|
|
+ return 0;
|
|
+ else
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static int
|
|
+do_test (void)
|
|
+{
|
|
+ return do_test_1 ("strlen", LOOP, prepare, function);
|
|
+}
|
|
diff --git a/sysdeps/x86/tst-strncmp-rtm.c b/sysdeps/x86/tst-strncmp-rtm.c
|
|
new file mode 100644
|
|
index 00000000..236ad951
|
|
--- /dev/null
|
|
+++ b/sysdeps/x86/tst-strncmp-rtm.c
|
|
@@ -0,0 +1,52 @@
|
|
+/* Test case for strncmp inside a transactionally executing RTM region.
|
|
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <https://www.gnu.org/licenses/>. */
|
|
+
|
|
+#include <tst-string-rtm.h>
|
|
+
|
|
+#define LOOP 3000
|
|
+#define STRING_SIZE 1024
|
|
+char string1[STRING_SIZE];
|
|
+char string2[STRING_SIZE];
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+prepare (void)
|
|
+{
|
|
+ memset (string1, 'a', STRING_SIZE - 1);
|
|
+ memset (string2, 'a', STRING_SIZE - 1);
|
|
+ if (strncmp (string1, string2, STRING_SIZE) == 0)
|
|
+ return EXIT_SUCCESS;
|
|
+ else
|
|
+ return EXIT_FAILURE;
|
|
+}
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+function (void)
|
|
+{
|
|
+ if (strncmp (string1, string2, STRING_SIZE) == 0)
|
|
+ return 0;
|
|
+ else
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static int
|
|
+do_test (void)
|
|
+{
|
|
+ return do_test_1 ("strncmp", LOOP, prepare, function);
|
|
+}
|
|
diff --git a/sysdeps/x86/tst-strrchr-rtm.c b/sysdeps/x86/tst-strrchr-rtm.c
|
|
new file mode 100644
|
|
index 00000000..e32bfaf5
|
|
--- /dev/null
|
|
+++ b/sysdeps/x86/tst-strrchr-rtm.c
|
|
@@ -0,0 +1,53 @@
|
|
+/* Test case for strrchr inside a transactionally executing RTM region.
|
|
+ Copyright (C) 2021 Free Software Foundation, Inc.
|
|
+ This file is part of the GNU C Library.
|
|
+
|
|
+ The GNU C Library is free software; you can redistribute it and/or
|
|
+ modify it under the terms of the GNU Lesser General Public
|
|
+ License as published by the Free Software Foundation; either
|
|
+ version 2.1 of the License, or (at your option) any later version.
|
|
+
|
|
+ The GNU C Library is distributed in the hope that it will be useful,
|
|
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
+ Lesser General Public License for more details.
|
|
+
|
|
+ You should have received a copy of the GNU Lesser General Public
|
|
+ License along with the GNU C Library; if not, see
|
|
+ <https://www.gnu.org/licenses/>. */
|
|
+
|
|
+#include <tst-string-rtm.h>
|
|
+
|
|
+#define LOOP 3000
|
|
+#define STRING_SIZE 1024
|
|
+char string1[STRING_SIZE];
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+prepare (void)
|
|
+{
|
|
+ memset (string1, 'a', STRING_SIZE - 1);
|
|
+ string1[STRING_SIZE - 100] = 'c';
|
|
+ char *p = strrchr (string1, 'c');
|
|
+ if (p == &string1[STRING_SIZE - 100])
|
|
+ return EXIT_SUCCESS;
|
|
+ else
|
|
+ return EXIT_FAILURE;
|
|
+}
|
|
+
|
|
+__attribute__ ((noinline, noclone))
|
|
+static int
|
|
+function (void)
|
|
+{
|
|
+ char *p = strrchr (string1, 'c');
|
|
+ if (p == &string1[STRING_SIZE - 100])
|
|
+ return 0;
|
|
+ else
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static int
|
|
+do_test (void)
|
|
+{
|
|
+ return do_test_1 ("strrchr", LOOP, prepare, function);
|
|
+}
|
|
--
|
|
GitLab
|
|
|