From 3c1fe20a9f4f6e12a3677ca8a5921ac03976da3b Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 2 Dec 2020 14:26:28 -0800 Subject: Mark __libc_freeres_fn as used [BZ #27002] GCC 11 with commit 6fbec038f7a7ddf29f074943611b53210d17c40c Author: H.J. Lu Date: Mon Feb 3 11:55:43 2020 -0800 Use SHF_GNU_RETAIN to preserve symbol definitions places used symbols in SECTION_RETAIN sections if assembler supports it. Mark __libc_freeres_fn as used to avoid gconv_dl.c: In function 'free_mem': gconv_dl.c:191:1: error: 'do_release_all' without 'used' attribute and 'free_mem' with 'used' attribute are placed in a section with the same name [-Werror=attributes] 191 | do_release_all (void *nodep) | ^~~~~~~~~~~~~~ In file included from : gconv_dl.c:202:18: note: 'free_mem' was declared here 202 | libc_freeres_fn (free_mem) | ^~~~~~~~ ./../include/libc-symbols.h:316:15: note: in definition of macro 'libc_freeres_fn' 316 | static void name (void) | ^~~~ cc1: all warnings being treated as errors --- include/libc-symbols.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/libc-symbols.h b/include/libc-symbols.h index 154a73b5e5..f06ce3053a 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -307,7 +307,7 @@ for linking") /* Resource freeing functions from libc.so go in this section. */ #define __libc_freeres_fn_section \ - __attribute__ ((section ("__libc_freeres_fn"))) + __attribute__ ((__used__, section ("__libc_freeres_fn"))) /* Resource freeing functions for libc.so. */ #define libc_freeres_fn(name) \ -- cgit v1.2.3