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* [Bug c/102361] New: Errors compiling Linux kernel 5.14.4 with CONFIG_FORTIFY=y
@ 2021-09-16  9:59 dac324 at yahoo dot de
  2021-09-16 10:38 ` [Bug c/102361] " marxin at gcc dot gnu.org
                   ` (15 more replies)
  0 siblings, 16 replies; 17+ messages in thread
From: dac324 at yahoo dot de @ 2021-09-16  9:59 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102361

            Bug ID: 102361
           Summary: Errors compiling Linux kernel 5.14.4 with
                    CONFIG_FORTIFY=y
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: dac324 at yahoo dot de
  Target Milestone: ---

GCC version: gcc (GCC) 12.0.0 20210910 (experimental)

With this version, it is not possible to compile the Linux kernel sources
(tested with both 5.14.1 and 5.14.4). 

Problem is that GCC 12 conflicts with CONFIG_FORTIFY=y.

Errors thrown with the 5.14.1 kernel sources:

In function 'memset',
    inlined from 'init_rock_state.part.0' at fs/isofs/rock.c:74:2:
./include/linux/fortify-string.h:172:17: error: call to '__write_overflow'
declared with attribute error: detected write beyond size of object passed as
1st parameter
  172 |                 __write_overflow();
      |                 ^~~~~~~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:271: fs/isofs/rock.o] Error 1
make[1]: *** [scripts/Makefile.build:514: fs/isofs] Error 2

In function 'memcpy',
    inlined from 'tl_to_darg.part.0' at fs/ext4/fast_commit.c:1295:2:
./include/linux/fortify-string.h:187:25: error: call to '__read_overflow2'
declared with attribute error: detected read beyond size of object passed as
2nd parameter
  187 |                         __read_overflow2();
      |                         ^~~~~~~~~~~~~~~~~~
make[2]: *** [scripts/Makefile.build:271: fs/ext4/fast_commit.o] Error 1
make[1]: *** [scripts/Makefile.build:514: fs/ext4] Error 2


Error thrown with the 5.14.4 kernel sources:

In Function »memcpy«,
    inserted from von »tl_to_darg.part.0« bei fs/ext4/fast_commit.c:1295:2:
./include/linux/fortify-string.h:187:25: Error: call to »__read_overflow2«
declared with attribute error: detected read beyond size of object passed as
2nd parameter
  187 |                         __read_overflow2();
      |                         ^~~~~~~~~~~~~~~~~~


With GCC 11, these errors do not occur. Hence, I must assume that they are
related to the compiler version.

^ permalink raw reply	[flat|nested] 17+ messages in thread
end of thread, other threads:[~2022-01-18 10:36 UTC | newest]

Thread overview: 17+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-09-16  9:59 [Bug c/102361] New: Errors compiling Linux kernel 5.14.4 with CONFIG_FORTIFY=y dac324 at yahoo dot de
2021-09-16 10:38 ` [Bug c/102361] " marxin at gcc dot gnu.org
2021-09-16 12:34 ` dac324 at yahoo dot de
2021-09-16 12:36 ` jakub at gcc dot gnu.org
2021-09-16 13:29 ` dac324 at yahoo dot de
2021-09-16 13:29 ` dac324 at yahoo dot de
2021-09-16 13:41 ` dac324 at yahoo dot de
2021-09-16 13:42 ` dac324 at yahoo dot de
2021-09-16 13:45 ` dac324 at yahoo dot de
2021-09-16 22:57 ` [Bug middle-end/102361] " pinskia at gcc dot gnu.org
2021-09-16 22:57 ` pinskia at gcc dot gnu.org
2021-09-16 22:59 ` [Bug ipa/102361] " pinskia at gcc dot gnu.org
2021-09-16 22:59 ` pinskia at gcc dot gnu.org
2021-09-16 23:00 ` pinskia at gcc dot gnu.org
2021-09-17  7:24 ` [Bug ipa/102361] Errors compiling Linux kernel 5.14 " dac324 at yahoo dot de
2021-09-17  7:41 ` pinskia at gcc dot gnu.org
2022-01-18 10:36 ` pinskia at gcc dot gnu.org

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