linux-toradex.git/scripts/gcc-plugins/gcc-common.h, branch v6.11-rc5

gcc-plugins: Remove duplicate included header file stringpool.h

2024-07-08T19:20:32+00:00

The header file stringpool.h is included for GCC version >= 8 and then
again for all versions.

Since the header file stringpool.h was added in GCC 4.9 and the kernel
currently requires GCC 5.1 as a minimum, remove the conditional include.

Including the header file only once removes the following warning
reported by make includecheck:

  stringpool.h is included more than once

However, it's important to include stringpool.h before attribs.h
because attribs.h uses some of its functions.

Compile-tested with GCC 14.

Signed-off-by: Thorsten Blum 
Link: https://lore.kernel.org/r/20240629233608.278028-2-thorsten.blum@toblux.com
Signed-off-by: Kees Cook

gcc-plugins: Rename last_stmt() for GCC 14+

2023-08-11T06:10:09+00:00

In GCC 14, last_stmt() was renamed to last_nondebug_stmt(). Add a helper
macro to handle the renaming.

Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook

gcc-plugins: Reorganize gimple includes for GCC 13

2023-01-25T20:24:48+00:00

The gimple-iterator.h header must be included before gimple-fold.h
starting with GCC 13. Reorganize gimple headers to work for all GCC
versions.

Reported-by: Palmer Dabbelt 
Acked-by: Palmer Dabbelt 
Link: https://lore.kernel.org/all/20230113173033.4380-1-palmer@rivosinc.com/
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook

gcc-plugins: remove duplicate include in gcc-common.h

2021-10-21T15:41:51+00:00

'tree-ssa-operands.h' included in 'gcc-common.h' is duplicated.
it's also included at line 56.

Reported-by: Zeal Robot 
Signed-off-by: Ye Guojin 
Signed-off-by: Kees Cook 
Link: https://lore.kernel.org/r/20211019082910.998257-1-ye.guojin@zte.com.cn

gcc-plugins: remove support for GCC 4.9 and older

2021-10-04T17:58:08+00:00

The minimum GCC version has been bumped to 5.1, so we can get rid of all
the compatibility code for anything older than that.

Signed-off-by: Ard Biesheuvel 
Signed-off-by: Kees Cook 
Link: https://lore.kernel.org/r/20210922182632.633394-1-ardb@kernel.org

gcc-plugins: remove code for GCC versions older than 4.9

2020-12-04T22:09:41+00:00

Documentation/process/changes.rst says the minimal GCC version is 4.9.
Hence, BUILDING_GCC_VERSION is greater than or equal to 4009.

Signed-off-by: Masahiro Yamada 
Signed-off-by: Kees Cook 
Link: https://lore.kernel.org/r/20201202134929.99883-1-masahiroy@kernel.org

gcc-common.h: Update for GCC 10

2020-04-13T17:19:20+00:00

Remove "params.h" include, which has been dropped in GCC 10.

Remove is_a_helper() macro, which is now defined in gimple.h, as seen
when running './scripts/gcc-plugin.sh g++ g++ gcc':

In file included from :1:
./gcc-plugins/gcc-common.h:852:13: error: redefinition of ‘static bool is_a_helper::test(U*) [with U = const gimple; T = const ggoto*]’
  852 | inline bool is_a_helper::test(const_gimple gs)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ./gcc-plugins/gcc-common.h:125,
                 from :1:
/usr/lib/gcc/x86_64-redhat-linux/10/plugin/include/gimple.h:1037:1: note: ‘static bool is_a_helper::test(U*) [with U = const gimple; T = const ggoto*]’ previously declared here
 1037 | is_a_helper ::test (const gimple *gs)
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Add -Wno-format-diag to scripts/gcc-plugins/Makefile to avoid
meaningless warnings from error() formats used by plugins:

scripts/gcc-plugins/structleak_plugin.c: In function ‘int plugin_init(plugin_name_args*, plugin_gcc_version*)’:
scripts/gcc-plugins/structleak_plugin.c:253:12: warning: unquoted sequence of 2 consecutive punctuation characters ‘'-’ in format [-Wformat-diag]
  253 |   error(G_("unknown option '-fplugin-arg-%s-%s'"), plugin_name, argv[i].key);
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Frédéric Pierret (fepitre) 
Link: https://lore.kernel.org/r/20200407113259.270172-1-frederic.pierret@qubes-os.org
[kees: include -Wno-format-diag for plugin builds]
Signed-off-by: Kees Cook

gcc-plugins: Fix build failures under Darwin host

2019-05-20T20:30:54+00:00

The gcc-common.h file did not take into account certain macros that
might have already been defined in the build environment. This updates
the header to avoid redefining the macros, as seen on a Darwin host
using gcc 4.9.2:

 HOSTCXX -fPIC scripts/gcc-plugins/arm_ssp_per_task_plugin.o - due to: scripts/gcc-plugins/gcc-common.h
In file included from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:0:
scripts/gcc-plugins/gcc-common.h:153:0: warning: "__unused" redefined
^
In file included from /usr/include/stdio.h:64:0,
                from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/system.h:40,
                from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/gcc-plugin.h:28,
                from /Users/hns/Documents/Projects/QuantumSTEP/System/Library/Frameworks/System.framework/Versions-jessie/x86_64-apple-darwin15.0.0/gcc/arm-linux-gnueabi/bin/../lib/gcc/arm-linux-gnueabi/4.9.2/plugin/include/plugin.h:23,
                from scripts/gcc-plugins/gcc-common.h:9,
                from scripts/gcc-plugins/arm_ssp_per_task_plugin.c:3:
/usr/include/sys/cdefs.h:161:0: note: this is the location of the previous definition
^

Reported-and-tested-by: "H. Nikolaus Schaller" 
Fixes: 189af4657186 ("ARM: smp: add support for per-task stack canaries")
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook

gcc-plugins: Clean up the cgraph_create_edge* macros

2018-07-24T23:14:06+00:00

Drop useless redefinitions of cgraph_create_edge* macros. Drop the unused
nest argument. Also support gcc-8, which doesn't have freq argument.

Signed-off-by: Alexander Popov 
Signed-off-by: Kees Cook

gcc-plugins: Add include required by GCC release 8

2018-02-06T01:10:10+00:00

GCC requires another #include to get the gcc-plugins to build cleanly.

Signed-off-by: Valdis Kletnieks 
Signed-off-by: Kees Cook