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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, Johannes Berg <johannes.berg@intel.com>,
	Richard Weinberger <richard@nod.at>,
	Sasha Levin <sashal@kernel.org>
Subject: [PATCH 5.12 19/45] um: Disable CONFIG_GCOV with MODULES
Date: Thu, 20 May 2021 11:22:07 +0200	[thread overview]
Message-ID: <20210520092054.143376360@linuxfoundation.org> (raw)
In-Reply-To: <20210520092053.516042993@linuxfoundation.org>

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit ad3d19911632debc886ef4a992d41d6de7927006 ]

CONFIG_GCOV doesn't work with modules, and for various reasons
it cannot work, see also
https://lore.kernel.org/r/d36ea54d8c0a8dd706826ba844a6f27691f45d55.camel@sipsolutions.net

Make CONFIG_GCOV depend on !MODULES to avoid anyone
running into issues there. This also means we need
not export the gcov symbols.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/um/Kconfig.debug      |  1 +
 arch/um/kernel/Makefile    |  1 -
 arch/um/kernel/gmon_syms.c | 16 ----------------
 3 files changed, 1 insertion(+), 17 deletions(-)
 delete mode 100644 arch/um/kernel/gmon_syms.c

diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index 315d368e63ad..1dfb2959c73b 100644
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug
@@ -17,6 +17,7 @@ config GCOV
 	bool "Enable gcov support"
 	depends on DEBUG_INFO
 	depends on !KCOV
+	depends on !MODULES
 	help
 	  This option allows developers to retrieve coverage data from a UML
 	  session.
diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile
index 5aa882011e04..e698e0c7dbdc 100644
--- a/arch/um/kernel/Makefile
+++ b/arch/um/kernel/Makefile
@@ -21,7 +21,6 @@ obj-y = config.o exec.o exitcode.o irq.o ksyms.o mem.o \
 
 obj-$(CONFIG_BLK_DEV_INITRD) += initrd.o
 obj-$(CONFIG_GPROF)	+= gprof_syms.o
-obj-$(CONFIG_GCOV)	+= gmon_syms.o
 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
 
diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c
deleted file mode 100644
index 9361a8eb9bf1..000000000000
--- a/arch/um/kernel/gmon_syms.c
+++ /dev/null
@@ -1,16 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <linux/module.h>
-
-extern void __bb_init_func(void *)  __attribute__((weak));
-EXPORT_SYMBOL(__bb_init_func);
-
-extern void __gcov_init(void *)  __attribute__((weak));
-EXPORT_SYMBOL(__gcov_init);
-extern void __gcov_merge_add(void *, unsigned int)  __attribute__((weak));
-EXPORT_SYMBOL(__gcov_merge_add);
-extern void __gcov_exit(void)  __attribute__((weak));
-EXPORT_SYMBOL(__gcov_exit);
-- 
2.30.2




  parent reply	other threads:[~2021-05-20  9:25 UTC|newest]

Thread overview: 51+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-20  9:21 [PATCH 5.12 00/45] 5.12.6-rc1 review Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 01/45] x86/msr: Fix wr/rdmsr_safe_regs_on_cpu() prototypes Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 02/45] drm/i915/display: fix compiler warning about array overrun Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 03/45] airo: work around stack usage warning Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 04/45] kgdb: fix gcc-11 warning on indentation Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 05/45] usb: sl811-hcd: improve misleading indentation Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 06/45] ARM: 9058/1: cache-v7: refactor v7_invalidate_l1 to avoid clobbering r5/r6 Greg Kroah-Hartman
2021-05-20  9:59   ` Ard Biesheuvel
2021-05-20 10:59     ` Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 07/45] PCI: thunder: Fix compile testing Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 08/45] dmaengine: dw-edma: Fix crash on loading/unloading driver Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 09/45] ARM: 9066/1: ftrace: pause/unpause function graph tracer in cpu_suspend() Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 10/45] NFS: Fix fscache invalidation in nfs_set_cache_invalid() Greg Kroah-Hartman
2021-05-20  9:21 ` [PATCH 5.12 11/45] ACPI / hotplug / PCI: Fix reference count leak in enable_slot() Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 12/45] PCI: tegra: Fix runtime PM imbalance in pex_ep_event_pex_rst_deassert() Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 13/45] Input: elants_i2c - do not bind to i2c-hid compatible ACPI instantiated devices Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 14/45] Input: silead - add workaround for x86 BIOS-es which bring the chip up in a stuck state Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 15/45] NFS: NFS_INO_REVAL_PAGECACHE should mark the change attribute invalid Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 16/45] f2fs: fix to avoid NULL pointer dereference Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 17/45] svcrdma: Dont leak send_ctxt on Send errors Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 18/45] um: Mark all kernel symbols as local Greg Kroah-Hartman
2021-05-20  9:22 ` Greg Kroah-Hartman [this message]
2021-05-20  9:22 ` [PATCH 5.12 20/45] PCI: tegra: Add Tegra194 MCFG quirks for ECAM errata Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 21/45] ARM: 9075/1: kernel: Fix interrupted SMC calls Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 22/45] platform/chrome: cros_ec_typec: Add DP mode check Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 23/45] riscv: Use $(LD) instead of $(CC) to link vDSO Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 24/45] scripts/recordmcount.pl: Fix RISC-V regex for clang Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 25/45] riscv: Workaround mcount name prior to clang-13 Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 26/45] scsi: lpfc: Fix illegal memory access on Abort IOCBs Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 27/45] ceph: fix fscache invalidation Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 28/45] ceph: dont clobber i_snap_caps on non-I_NEW inode Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 29/45] ceph: dont allow access to MDS-private inodes Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 30/45] scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 31/45] amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 32/45] bridge: Fix possible races between assigning rx_handler_data and setting IFF_BRIDGE_PORT bit Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 33/45] net: hsr: check skb can contain struct hsr_ethhdr in fill_frame_info Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 34/45] nvmet: remove unsupported command noise Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 35/45] drm/amd/display: Fix two cursor duplication when using overlay Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 36/45] gpiolib: acpi: Add quirk to ignore EC wakeups on Dell Venue 10 Pro 5055 Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 37/45] net:CXGB4: fix leak if sk_buff is not used Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 38/45] ALSA: hda: generic: change the DAC ctl name for LO+SPK or LO+HP Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 39/45] block: reexpand iov_iter after read/write Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 40/45] lib: stackdepot: turn depot_lock spinlock to raw_spinlock Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 41/45] net: stmmac: Do not enable RX FIFO overflow interrupts Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 42/45] ip6_gre: proper dev_{hold|put} in ndo_[un]init methods Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 43/45] sit: " Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 44/45] ip6_tunnel: " Greg Kroah-Hartman
2021-05-20  9:22 ` [PATCH 5.12 45/45] ipv6: remove extra dev_hold() for fallback tunnels Greg Kroah-Hartman
2021-05-20 11:38 ` [PATCH 5.12 00/45] 5.12.6-rc1 review Fox Chen
2021-05-24 15:42   ` Greg Kroah-Hartman
2021-05-20 21:47 ` Rudi Heitbaum

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