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[209.51.188.17]) by mx.google.com with ESMTPS id af79cd13be357-79ef73fb8a6si15553585a.612.2024.07.04.17.36.23 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 04 Jul 2024 17:36:24 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=vRkAzjdT; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sPWuy-0003Je-Ai; Thu, 04 Jul 2024 20:35:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sPWuv-0003Cj-Du for qemu-devel@nongnu.org; Thu, 04 Jul 2024 20:35:14 -0400 Received: from mail-pf1-x42e.google.com ([2607:f8b0:4864:20::42e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sPWur-0000Lf-E8 for qemu-devel@nongnu.org; Thu, 04 Jul 2024 20:35:11 -0400 Received: by mail-pf1-x42e.google.com with SMTP id d2e1a72fcca58-70b04cb28baso625819b3a.1 for ; Thu, 04 Jul 2024 17:35:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1720139706; x=1720744506; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=jSYKX7tgmPWgH1eoungM9Ek83i1kIQO2hxPk9JjJ0jw=; b=vRkAzjdTvPGmU/1+xUouQGopLgI2z3kIUt/HjGCMvn7rMNfuB6wJSwB13Oll9ou9bx lbSx6TWARqdSm1y7JCvir+NOQEpVXKi2e5oO+0no7Zg8WsI1N4jneUc1bpzUhNyc3CBi mCQpxruPL2etgW2JkkPX/9WraBUmCJ+8WDGmnnfrkBD/c1FOG5iM0BF3eMOdH4vHIPkG qR+BdxfeU7y6DFz6HcCqsQ1vae/Ob5B1KwbytRAoTALsOww6Z2nnJB18kOwE3NaHOQ62 IWaFeH0lC/uydHDC6aSRWrS1h1hsMK9Ior46l3eYn/RT0jU99jDhIKXEds5fr7dce9hr V05Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1720139706; x=1720744506; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=jSYKX7tgmPWgH1eoungM9Ek83i1kIQO2hxPk9JjJ0jw=; b=IBCGdX47Vm0JN7c1i6bRN+GHTjImjYpQZRx2aHjhcYVTEnk0kbUP0so6PHCVtfS/M2 XXvcFOj22OTKUlXBS390k2ItIbstIMOr8KvuCbz67KQQSK/V760q4d5A2nLW5wJn3E3o Kzz8kARbVCoFJLQedKyGngBAaDkDz76TWhinhRBU5iODmm8zcrKnfD4hM5WavnbWtkx4 vkVHIhid3QetGV3hjuCORLkhksZL/1XiYNhGeJDleERQ9Gj5UWnlU5m18ccjD8jvD97o IAk5uPUOupmJGyP9gI1xCuUMc6W26MKqPYkWcipTOJQ/69KWxY6q/dgwtrZeOiJBn7PH 0drw== X-Gm-Message-State: AOJu0YyjkqPUddu9oFVAOLAddeR/8/vojOdQpZVvhxIfAp27iEVIGupB znH+Sd3K0iZyi59P02PYbH2cMadcUbBTFNa2Ep7sBA22CdrooWbmlM9UbmPxIyxex22zB6dbTmC lYlQ= X-Received: by 2002:a05:6a20:4f22:b0:1bd:4bc7:1ee4 with SMTP id adf61e73a8af0-1c0ccb0fa0dmr2609174637.58.1720139706195; Thu, 04 Jul 2024 17:35:06 -0700 (PDT) Received: from linaro.vn.shawcable.net ([2604:3d08:9384:1d00::2193]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-1fb1a075616sm39008595ad.15.2024.07.04.17.35.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Jul 2024 17:35:05 -0700 (PDT) From: Pierrick Bouvier To: qemu-devel@nongnu.org Cc: Alexandre Iooss , Richard Henderson , Marcel Apfelbaum , Pierrick Bouvier , =?utf-8?q?Alex_Benn=C3=A9e?= , Paolo Bonzini , Yanan Wang , Mahmoud Mandour , Eduardo Habkost , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?q?=C3=A9?= , Xingtao Yao Subject: [PATCH v5 7/7] tests/tcg/x86_64: add test for plugin memory access Date: Thu, 4 Jul 2024 17:34:21 -0700 Message-Id: <20240705003421.750895-8-pierrick.bouvier@linaro.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240705003421.750895-1-pierrick.bouvier@linaro.org> References: <20240705003421.750895-1-pierrick.bouvier@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::42e; envelope-from=pierrick.bouvier@linaro.org; helo=mail-pf1-x42e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org Add an explicit test to check expected memory values are read/written. For sizes 8, 16, 32, 64 and 128, we generate a load/store operation. For size 8 -> 64, we generate an atomic __sync_val_compare_and_swap too. For 128bits memory access, we rely on SSE2 instructions. By default, atomic accesses are non atomic if a single cpu is running, so we force creation of a second one by creating a new thread first. load/store helpers code path can't be triggered easily in user mode (no softmmu), so we can't test it here. Can be run with: make -C build/tests/tcg/x86_64-linux-user run-plugin-test-plugin-mem-access-with-libmem.so Tested-by: Xingtao Yao Signed-off-by: Pierrick Bouvier --- tests/tcg/x86_64/test-plugin-mem-access.c | 89 +++++++++++++++++++++ tests/tcg/x86_64/Makefile.target | 7 ++ tests/tcg/x86_64/check-plugin-mem-access.sh | 48 +++++++++++ 3 files changed, 144 insertions(+) create mode 100644 tests/tcg/x86_64/test-plugin-mem-access.c create mode 100755 tests/tcg/x86_64/check-plugin-mem-access.sh diff --git a/tests/tcg/x86_64/test-plugin-mem-access.c b/tests/tcg/x86_64/test-plugin-mem-access.c new file mode 100644 index 00000000000..7fdd6a55829 --- /dev/null +++ b/tests/tcg/x86_64/test-plugin-mem-access.c @@ -0,0 +1,89 @@ +#include +#include +#include +#include + +static void *data; + +#define DEFINE_STORE(name, type, value) \ +static void store_##name(void) \ +{ \ + *((type *)data) = value; \ +} + +#define DEFINE_ATOMIC_OP(name, type, value) \ +static void atomic_op_##name(void) \ +{ \ + *((type *)data) = 0x42; \ + __sync_val_compare_and_swap((type *)data, 0x42, value); \ +} + +#define DEFINE_LOAD(name, type) \ +static void load_##name(void) \ +{ \ + register type var asm("eax") = *((type *) data); \ + (void)var; \ +} + +DEFINE_STORE(u8, uint8_t, 0xf1) +DEFINE_ATOMIC_OP(u8, uint8_t, 0xf1) +DEFINE_LOAD(u8, uint8_t) +DEFINE_STORE(u16, uint16_t, 0xf123) +DEFINE_ATOMIC_OP(u16, uint16_t, 0xf123) +DEFINE_LOAD(u16, uint16_t) +DEFINE_STORE(u32, uint32_t, 0xff112233) +DEFINE_ATOMIC_OP(u32, uint32_t, 0xff112233) +DEFINE_LOAD(u32, uint32_t) +DEFINE_STORE(u64, uint64_t, 0xf123456789abcdef) +DEFINE_ATOMIC_OP(u64, uint64_t, 0xf123456789abcdef) +DEFINE_LOAD(u64, uint64_t) + +static void store_u128(void) +{ + _mm_store_si128(data, _mm_set_epi32(0xf1223344, 0x55667788, + 0xf1234567, 0x89abcdef)); +} + +static void load_u128(void) +{ + __m128i var = _mm_load_si128(data); + (void)var; +} + +static void *f(void *p) +{ + return NULL; +} + +int main(void) +{ + /* + * We force creation of a second thread to enable cpu flag CF_PARALLEL. + * This will generate atomic operations when needed. + */ + pthread_t thread; + pthread_create(&thread, NULL, &f, NULL); + pthread_join(thread, NULL); + + data = malloc(sizeof(__m128i)); + atomic_op_u8(); + store_u8(); + load_u8(); + + atomic_op_u16(); + store_u16(); + load_u16(); + + atomic_op_u32(); + store_u32(); + load_u32(); + + atomic_op_u64(); + store_u64(); + load_u64(); + + store_u128(); + load_u128(); + + free(data); +} diff --git a/tests/tcg/x86_64/Makefile.target b/tests/tcg/x86_64/Makefile.target index eda9bd7396c..3edc29b924d 100644 --- a/tests/tcg/x86_64/Makefile.target +++ b/tests/tcg/x86_64/Makefile.target @@ -16,6 +16,7 @@ X86_64_TESTS += noexec X86_64_TESTS += cmpxchg X86_64_TESTS += adox X86_64_TESTS += test-1648 +PLUGINS_TESTS += test-plugin-mem-access TESTS=$(MULTIARCH_TESTS) $(X86_64_TESTS) test-x86_64 else TESTS=$(MULTIARCH_TESTS) @@ -26,6 +27,12 @@ adox: CFLAGS=-O2 run-test-i386-ssse3: QEMU_OPTS += -cpu max run-plugin-test-i386-ssse3-%: QEMU_OPTS += -cpu max +run-plugin-test-plugin-mem-access-with-libmem.so: \ + PLUGIN_ARGS=$(COMMA)print-accesses=true +run-plugin-test-plugin-mem-access-with-libmem.so: \ + CHECK_PLUGIN_OUTPUT_COMMAND= \ + $(SRC_PATH)/tests/tcg/x86_64/check-plugin-mem-access.sh + test-x86_64: LDFLAGS+=-lm -lc test-x86_64: test-i386.c test-i386.h test-i386-shift.h test-i386-muldiv.h $(CC) $(CFLAGS) $< -o $@ $(LDFLAGS) diff --git a/tests/tcg/x86_64/check-plugin-mem-access.sh b/tests/tcg/x86_64/check-plugin-mem-access.sh new file mode 100755 index 00000000000..163f1cfad34 --- /dev/null +++ b/tests/tcg/x86_64/check-plugin-mem-access.sh @@ -0,0 +1,48 @@ +#!/usr/bin/env bash + +set -euo pipefail + +die() +{ + echo "$@" 1>&2 + exit 1 +} + +check() +{ + file=$1 + pattern=$2 + grep "$pattern" "$file" > /dev/null || die "\"$pattern\" not found in $file" +} + +[ $# -eq 1 ] || die "usage: plugin_out_file" + +plugin_out=$1 + +expected() +{ + cat << EOF +,store_u8,.*,8,store,0xf1 +,atomic_op_u8,.*,8,load,0x42 +,atomic_op_u8,.*,8,store,0xf1 +,load_u8,.*,8,load,0xf1 +,store_u16,.*,16,store,0xf123 +,atomic_op_u16,.*,16,load,0x0042 +,atomic_op_u16,.*,16,store,0xf123 +,load_u16,.*,16,load,0xf123 +,store_u32,.*,32,store,0xff112233 +,atomic_op_u32,.*,32,load,0x00000042 +,atomic_op_u32,.*,32,store,0xff112233 +,load_u32,.*,32,load,0xff112233 +,store_u64,.*,64,store,0xf123456789abcdef +,atomic_op_u64,.*,64,load,0x0000000000000042 +,atomic_op_u64,.*,64,store,0xf123456789abcdef +,load_u64,.*,64,load,0xf123456789abcdef +,store_u128,.*,128,store,0xf122334455667788f123456789abcdef +,load_u128,.*,128,load,0xf122334455667788f123456789abcdef +EOF +} + +expected | while read line; do + check "$plugin_out" "$line" +done