Re: [uclibc-ng-devel] Fix static linking with GCC-10

Starting with GCC-10 multiple definitions of global variables by will be rejected. https://gcc.gnu.org/gcc-10/porting_to.html This fixes multiple definitions of _dl_pagesize and _dl_tls_static_size while attempting static linking. Of course this only occurs when compiling something that requires these symbols. First patch submission so hopefully all done correctly. thanks, Lance Fredrickson

From e0686f7c03ce8e51ccffefeb6365e50311e6dd10 Mon Sep 17 00:00:00 2001 From: lancethepants <lancethepants(a)gmail.com> Date: Wed, 15 Jul 2020 13:09:26 -0600 Subject: [PATCH] Starting with GCC-10 multiple definitions of global variables by will be rejected. This fixes multiple definitions of _dl_pagesize and _dl_tls_static_size while attempting static linking. --- libc/misc/elf/dl-support.c | 2 +- libpthread/nptl/sysdeps/generic/libc-tls.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libc/misc/elf/dl-support.c b/libc/misc/elf/dl-support.c index 87cd1bb72..eaf08f5bb 100644 --- a/libc/misc/elf/dl-support.c +++ b/libc/misc/elf/dl-support.c @@ -29,7 +29,7 @@ void (*_dl_init_static_tls) (struct link_map *) = &_dl_nothread_init_static_tls; ElfW(Phdr) *_dl_phdr; size_t _dl_phnum; -size_t _dl_pagesize; +extern size_t _dl_pagesize; void internal_function _dl_aux_init (ElfW(auxv_t) *av); void internal_function _dl_aux_init (ElfW(auxv_t) *av) diff --git a/libpthread/nptl/sysdeps/generic/libc-tls.c b/libpthread/nptl/sysdeps/generic/libc-tls.c index d746c9a38..a1d2ef913 100644 --- a/libpthread/nptl/sysdeps/generic/libc-tls.c +++ b/libpthread/nptl/sysdeps/generic/libc-tls.c @@ -72,7 +72,7 @@ struct dtv_slotinfo_list *_dl_tls_dtv_slotinfo_list; /* Number of modules in the static TLS block. */ size_t _dl_tls_static_nelem; /* Size of the static TLS block. */ -size_t _dl_tls_static_size; +extern size_t _dl_tls_static_size; /* Size actually allocated in the static TLS block. */ size_t _dl_tls_static_used; /* Alignment requirement of the static TLS block. */ -- 2.20.1

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