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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-04-06 12:09:42 -0300 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2022-05-13 10:54:41 -0300 |
commit | 900fa2573671d692ed245f76aa3f05cec462be0c (patch) | |
tree | 221e0866faaa1e5305384a43f8de84f869c84caa /stdio-common/errlist-data-gen.c | |
parent | 111254f3e1e1a7ae5c2eda7cebc98f93a61d417c (diff) | |
download | glibc-900fa2573671d692ed245f76aa3f05cec462be0c.tar.gz glibc-900fa2573671d692ed245f76aa3f05cec462be0c.tar.xz glibc-900fa2573671d692ed245f76aa3f05cec462be0c.zip |
stdio: Remove the usage of $(fno-unit-at-a-time) for errlist.c
The errlist.c is built with -fno-toplevel-reorder to avoid compiler to reorder the compat assembly directives due an assembler issue [1] (fixed on 2.39). This patch removes the compiler flags by split the compat symbol generation in two phases. First the _sys_errlist_internal internal without any compat symbol directive is preprocessed to generate an assembly source code. This generate assembly is then used as input on a platform agnostic errlist-data.S which then creates the compat definitions. This prevents compiler to move any compat directive prior the _sys_errlist_internal definition itself. Checked on a make check run-built-tests=no on all affected ABIs. [1] https://sourceware.org/bugzilla/show_bug.cgi?id=29012
Diffstat (limited to 'stdio-common/errlist-data-gen.c')
-rw-r--r-- | stdio-common/errlist-data-gen.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/stdio-common/errlist-data-gen.c b/stdio-common/errlist-data-gen.c new file mode 100644 index 0000000000..db4f50e6db --- /dev/null +++ b/stdio-common/errlist-data-gen.c @@ -0,0 +1,34 @@ +/* Internal errno names mapping definition. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <array_length.h> +#include <err_map.h> +#include <errno.h> +#include <libintl.h> +#include <stdio.h> + +const char *const _sys_errlist_internal[] = + { +#define _S(n, str) [ERR_MAP(n)] = str, +#include <errlist.h> +#undef _S + }; +const size_t _sys_errlist_internal_len = array_length (_sys_errlist_internal); + +/* Include to get the definitions for sys_nerr/_sys_nerr. */ +#include <errlist-compat-data.h> |