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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Colin Ian King <colin.king@canonical.com>,
	Leon Romanovsky <leonro@nvidia.com>,
	Peter Oberparleiter <oberpar@linux.ibm.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.9 47/70] gcov: add support for GCC 10.1
Date: Mon, 21 Sep 2020 18:27:47 +0200	[thread overview]
Message-ID: <20200921162037.274861556@linuxfoundation.org> (raw)
In-Reply-To: <20200921162035.136047591@linuxfoundation.org>

From: Peter Oberparleiter <oberpar@linux.ibm.com>

[ Upstream commit 40249c6962075c040fd071339acae524f18bfac9 ]

Using gcov to collect coverage data for kernels compiled with GCC 10.1
causes random malfunctions and kernel crashes.  This is the result of a
changed GCOV_COUNTERS value in GCC 10.1 that causes a mismatch between
the layout of the gcov_info structure created by GCC profiling code and
the related structure used by the kernel.

Fix this by updating the in-kernel GCOV_COUNTERS value.  Also re-enable
config GCOV_KERNEL for use with GCC 10.

Reported-by: Colin Ian King <colin.king@canonical.com>
Reported-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Tested-by: Leon Romanovsky <leonro@nvidia.com>
Tested-and-Acked-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/gcov/Kconfig   | 1 -
 kernel/gcov/gcc_4_7.c | 4 +++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index 1d78ed19a3512..1276aabaab550 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -3,7 +3,6 @@ menu "GCOV-based kernel profiling"
 config GCOV_KERNEL
 	bool "Enable gcov-based kernel profiling"
 	depends on DEBUG_FS
-	depends on !CC_IS_GCC || GCC_VERSION < 100000
 	select CONSTRUCTORS if !UML
 	default n
 	---help---
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index 46a18e72bce61..6d5ef6220afe7 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -18,7 +18,9 @@
 #include <linux/vmalloc.h>
 #include "gcov.h"
 
-#if (__GNUC__ >= 7)
+#if (__GNUC__ >= 10)
+#define GCOV_COUNTERS			8
+#elif (__GNUC__ >= 7)
 #define GCOV_COUNTERS			9
 #elif (__GNUC__ > 5) || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
 #define GCOV_COUNTERS			10
-- 
2.25.1




  parent reply	other threads:[~2020-09-21 16:35 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21 16:27 [PATCH 4.9 00/70] 4.9.237-rc1 review Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 01/70] ARM: dts: socfpga: fix register entry for timer3 on Arria10 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 02/70] RDMA/rxe: Fix memleak in rxe_mem_init_user Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 03/70] RDMA/rxe: Drop pointless checks in rxe_init_ports Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 04/70] scsi: libsas: Set data_dir as DMA_NONE if libata marks qc as NODATA Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 05/70] drivers/net/wan/lapbether: Added needed_tailroom Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 06/70] NFC: st95hf: Fix memleak in st95hf_in_send_cmd Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 07/70] firestream: Fix memleak in fs_open Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 08/70] ALSA: hda: Fix 2 channel swapping for Tegra Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 09/70] drivers/net/wan/lapbether: Set network_header before transmitting Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 10/70] xfs: initialize the shortform attr header padding entry Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 11/70] irqchip/eznps: Fix build error for !ARC700 builds Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 12/70] drivers/net/wan/hdlc_cisco: Add hard_header_len Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 13/70] ALSA: hda: fix a runtime pm issue in SOF when integrated GPU is disabled Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 14/70] gcov: Disable gcov build with GCC 10 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 15/70] iio: adc: mcp3422: fix locking scope Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 16/70] iio: adc: mcp3422: fix locking on error path Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 17/70] iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 18/70] iio:light:ltr501 Fix timestamp alignment issue Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 19/70] iio:accel:bmc150-accel: Fix timestamp alignment and prevent data leak Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 20/70] iio:adc:ina2xx Fix timestamp alignment issue Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 21/70] iio:adc:ti-adc081c Fix alignment and data leak issues Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 22/70] drivers: iio: magnetometer: Fix sparse endianness warnings cast to restricted __be16 Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 23/70] iio:magnetometer:ak8975 Fix alignment and data leak issues Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 24/70] iio:light:max44000 Fix timestamp alignment and prevent data leak Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 25/70] iio: accel: kxsd9: Fix alignment of local buffer Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 26/70] iio:accel:mma7455: Fix timestamp alignment and prevent data leak Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 27/70] iio:accel:mma8452: " Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 28/70] USB: core: add helpers to retrieve endpoints Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 29/70] staging: wlan-ng: fix out of bounds read in prism2sta_probe_usb() Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 30/70] btrfs: fix wrong address when faulting in pages in the search ioctl Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 31/70] regulator: push allocation in set_consumer_device_supply() out of lock Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 32/70] scsi: target: iscsi: Fix data digest calculation Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 33/70] scsi: target: iscsi: Fix hang in iscsit_access_np() when getting tpg->np_login_sem Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 34/70] rbd: require global CAP_SYS_ADMIN for mapping and unmapping Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 35/70] fbcon: remove soft scrollback code Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 36/70] fbcon: remove now unusued softback_lines cursor() argument Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 37/70] vgacon: remove software scrollback support Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 38/70] KVM: VMX: Dont freeze guest when event delivery causes an APIC-access exit Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 39/70] video: fbdev: fix OOB read in vga_8planes_imageblit() Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 40/70] staging: greybus: audio: fix uninitialized value issue Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 41/70] usb: core: fix slab-out-of-bounds Read in read_descriptors Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 42/70] USB: serial: ftdi_sio: add IDs for Xsens Mti USB converter Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 43/70] USB: serial: option: add support for SIM7070/SIM7080/SIM7090 modules Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 44/70] usb: Fix out of sync data toggle if a configured device is reconfigured Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 45/70] IB/rxe: Remove a pointless indirection layer Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 46/70] RDMA/rxe: Fix the parent sysfs read when the interface has 15 chars Greg Kroah-Hartman
2020-09-21 16:27 ` Greg Kroah-Hartman [this message]
2020-09-21 16:27 ` [PATCH 4.9 48/70] net: handle the return value of pskb_carve_frag_list() correctly Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 49/70] NFSv4.1 handle ERR_DELAY error reclaiming locking state on delegation recall Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 50/70] scsi: pm8001: Fix memleak in pm8001_exec_internal_task_abort Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 51/70] scsi: lpfc: Fix FLOGI/PLOGI receive race condition in pt2pt discovery Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 52/70] spi: spi-loopback-test: Fix out-of-bounds read Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 53/70] SUNRPC: stop printk reading past end of string Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 54/70] rapidio: Replace select DMAENGINES with depends on Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 55/70] i2c: algo: pca: Reapply i2c bus settings after reset Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 56/70] clk: rockchip: Fix initialization of mux_pll_src_4plls_p Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 57/70] Drivers: hv: vmbus: Add timeout to vmbus_wait_for_unload Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 58/70] MIPS: SNI: Fix MIPS_L1_CACHE_SHIFT Greg Kroah-Hartman
2020-09-21 16:27 ` [PATCH 4.9 59/70] perf test: Free formats for perf pmu parse test Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 60/70] fbcon: Fix user font detection test at fbcon_resize() Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 61/70] MIPS: SNI: Fix spurious interrupts Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 62/70] drm/mediatek: Add exception handing in mtk_drm_probe() if component init fail Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 63/70] USB: quirks: Add USB_QUIRK_IGNORE_REMOTE_WAKEUP quirk for BYD zhaoxin notebook Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 64/70] USB: UAS: fix disconnect by unplugging a hub Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 65/70] usblp: fix race between disconnect() and read() Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 66/70] Input: i8042 - add Entroware Proteus EL07R4 to nomux and reset lists Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 67/70] serial: 8250_pci: Add Realtek 816a and 816b Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 68/70] ehci-hcd: Move include to keep CRC stable Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 69/70] powerpc/dma: Fix dma_map_ops::get_required_mask Greg Kroah-Hartman
2020-09-21 16:28 ` [PATCH 4.9 70/70] x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y Greg Kroah-Hartman
2020-09-22 12:24 ` [PATCH 4.9 00/70] 4.9.237-rc1 review Naresh Kamboju
2020-09-22 20:17 ` Guenter Roeck

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