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authorAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-04-06 12:09:42 -0300
committerAdhemerval Zanella <adhemerval.zanella@linaro.org>2022-05-13 10:54:41 -0300
commit900fa2573671d692ed245f76aa3f05cec462be0c (patch)
tree221e0866faaa1e5305384a43f8de84f869c84caa /include
parent111254f3e1e1a7ae5c2eda7cebc98f93a61d417c (diff)
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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 'include')
-rw-r--r--include/stdio.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/stdio.h b/include/stdio.h
index 23b7fd288c..a6f7fd43cb 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -180,6 +180,7 @@ int __vfxprintf (FILE *__fp, const char *__fmt, __gnuc_va_list,
   attribute_hidden;
 
 extern const char *const _sys_errlist_internal[] attribute_hidden;
+extern const size_t _sys_errlist_internal_len attribute_hidden;
 extern const char *__get_errlist (int) attribute_hidden;
 extern const char *__get_errname (int) attribute_hidden;