[PATCH 6/6] um: fix CONFIG_GCOV for modules
From: Johannes Berg <johannes@sipsolutions.net>
Date: 2021-03-12 09:56:34
Also in:
linux-fsdevel, lkml
Subsystem:
the rest, user-mode linux (uml) · Maintainers:
Linus Torvalds, Richard Weinberger, Anton Ivanov, Johannes Berg
From: Johannes Berg <redacted> At least with current toolchain versions, gcov (as enabled by CONFIG_GCOV) requires init and exit handlers to run. For modules, this wasn't done properly, so use the new support for CONFIG_MODULE_DESTRUCTORS as well as CONFIG_CONSTRUCTORS to have gcov init and exit called appropriately. Signed-off-by: Johannes Berg <redacted> --- arch/um/Kconfig.debug | 2 ++ arch/um/kernel/process.c | 2 ++ 2 files changed, 4 insertions(+)
diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index ca040b4e86e5..74b27b11cb44 100644
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug@@ -17,6 +17,8 @@ config GCOV_BASE bool "Enable gcov support (selectively)" depends on DEBUG_INFO depends on !KCOV && !GCOV_KERNEL + select CONSTRUCTORS + select WANT_MODULE_DESTRUCTORS help This option allows developers to retrieve coverage data from a UML session, stored to disk just like with a regular userspace binary,
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index c5011064b5dd..33f895a95ff8 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c@@ -240,6 +240,8 @@ void do_uml_exitcalls(void) call = &__uml_exitcall_end; while (--call >= &__uml_exitcall_begin) (*call)(); + + run_all_module_destructors(); } char *uml_strdup(const char *string)
--
2.29.2
_______________________________________________
linux-um mailing list
linux-um@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-um