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authorTulio Magno Quites Machado Filho <tuliom@linux.ibm.com>2022-07-07 18:12:58 -0300
committerTulio Magno Quites Machado Filho <tuliom@linux.ibm.com>2022-07-14 16:01:14 -0300
commitd0fa09a7701956036ff36f8ca188e9fff81553d8 (patch)
tree26e7f93e4d5bd5a291ee139cced70688751d2c03 /libio/Makefile
parent779aa039fc4151bdc0d79ef2e141604863856a60 (diff)
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Apply asm redirections in stdio.h before first use [BZ #27087]
Compilers may not be able to apply asm redirections to functions after
these functions are used for the first time, e.g. clang 13.
Fix [BZ #27087] by applying all long double-related asm redirections
before using functions in bits/stdio.h.
However, as these asm redirections depend on the declarations provided
by libio/bits/stdio2.h, this header was split in 2:

 - libio/bits/stdio2-decl.h contains all function declarations;
 - libio/bits/stdio2.h remains with the remaining contents, including
   redirections.

This also adds the access attribute to __vsnprintf_chk that was missing.

Tested with build-many-glibcs.py.

Reviewed-by: Paul E. Murphy <murphyp@linux.ibm.com>
Diffstat (limited to 'libio/Makefile')
-rw-r--r--libio/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/Makefile b/libio/Makefile
index e97387743f..3a02611020 100644
--- a/libio/Makefile
+++ b/libio/Makefile
@@ -23,7 +23,7 @@ subdir	:= libio
 include ../Makeconfig
 
 headers	:= stdio.h \
-	   bits/stdio.h bits/stdio2.h bits/stdio-ldbl.h \
+	   bits/stdio.h bits/stdio2.h bits/stdio2-decl.h bits/stdio-ldbl.h \
 	   bits/types/FILE.h bits/types/__FILE.h bits/types/struct_FILE.h \
 	   bits/types/__fpos_t.h bits/types/__fpos64_t.h \
 	   bits/types/cookie_io_functions_t.h