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Merge tag 'orphan-handling-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

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Pull orphan handling fix from Kees Cook:
 "Another case of bogus .eh_frame emission was noticed under
  CONFIG_GCOV_KERNEL=y.

  Summary:

   - Define SANITIZER_DISCARDS with CONFIG_GCOV_KERNEL=y (Nathan
     Chancellor)"

* tag 'orphan-handling-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  vmlinux.lds.h: Define SANITIZER_DISCARDS with CONFIG_GCOV_KERNEL=y
This commit is contained in:
Linus Torvalds
2021-02-26 10:12:19 -08:00
parent fe1072ff76 f5b6a74d9c
commit 2bd3f4eeb3
1 changed files with 5 additions and 4 deletions
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9
include/asm-generic/vmlinux.lds.h
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@@ -968,12 +968,13 @@
#endif #endif
/* /*
* Clang's -fsanitize=kernel-address and -fsanitize=thread produce * Clang's -fprofile-arcs, -fsanitize=kernel-address, and
* unwanted sections (.eh_frame and .init_array.*), but * -fsanitize=thread produce unwanted sections (.eh_frame
* CONFIG_CONSTRUCTORS wants to keep any .init_array.* sections. * and .init_array.*), but CONFIG_CONSTRUCTORS wants to
* keep any .init_array.* sections.
* https://bugs.llvm.org/show_bug.cgi?id=46478 * https://bugs.llvm.org/show_bug.cgi?id=46478
*/ */
#if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KCSAN) #if defined(CONFIG_GCOV_KERNEL) || defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KCSAN)
# ifdef CONFIG_CONSTRUCTORS # ifdef CONFIG_CONSTRUCTORS
# define SANITIZER_DISCARDS \ # define SANITIZER_DISCARDS \
*(.eh_frame) *(.eh_frame)