From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 07/19] commands: ubsan: hide pointer provenance used to trigger UB
Date: Mon, 12 Jun 2023 15:02:28 +0200 [thread overview]
Message-ID: <20230612130239.1087599-8-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20230612130239.1087599-1-a.fatoum@pengutronix.de>
The ubsan command invokes various sort of undefined behavior to verify
that the Undefined Behavior Sanitizer works as expected. Compiler warns
about some of this, which is not helpful, so work around the warning.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
commands/ubsan.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/commands/ubsan.c b/commands/ubsan.c
index 620b4774c3c2..4a9716139c4b 100644
--- a/commands/ubsan.c
+++ b/commands/ubsan.c
@@ -102,6 +102,8 @@ static void test_ubsan_object_size_mismatch(void)
volatile long long *ptr, val2;
ptr = (long long *)&val;
+ OPTIMIZER_HIDE_VAR(ptr);
+
val2 = *ptr;
}
--
2.39.2
next prev parent reply other threads:[~2023-06-12 13:03 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-12 13:02 [PATCH 00/19] misc fixes building sandbox 64-bit allyesconfig Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 01/19] clk: always define clk_prepare_enable/disable Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 02/19] clk: define clk_get_parent stub Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 03/19] pci: disable building CONFIG_PCI when CONFIG_COMPILE_TEST Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 04/19] mci: tegra: fix base address constant to be hexadecimal Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 05/19] ata: ide-sff: fix warnings when compiling as 64-bit Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 06/19] video: bochs: remove dependency on PCI header in common part Ahmad Fatoum
2023-06-12 13:02 ` Ahmad Fatoum [this message]
2023-06-12 13:02 ` [PATCH 08/19] test: self: printf: silence clang warnings Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 09/19] crypto: caam - fix pointer to u32 casts Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 10/19] crypto: imx-scc: fix u32 to pointer casts Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 11/19] mci: sdhci: dove: fix pointer to u32 casts Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 12/19] lib: make_directory: return -ENOMEM on allocation failure Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 13/19] include <linux/idr.h>: handle OOM gracefully inside idr_alloc_one Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 14/19] mci: tegra: use correct types for mmio and DMA address Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 15/19] mtd: spi-nor: cadence: fix types Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 16/19] video: simplefb-fixup: warn on framebuffers >= 4G Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 17/19] watchdog: imx28: use correct constant for computing timeout_max Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 18/19] firmware: mark firmware sections as having non-executable stack Ahmad Fatoum
2023-06-12 13:02 ` [PATCH 19/19] phy: stm32: usb: depend on COMMON_CLK Ahmad Fatoum
2023-06-13 7:49 ` [PATCH 00/19] misc fixes building sandbox 64-bit allyesconfig Sascha Hauer
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