From 716458049510215451d25ac131858b6bdf30f99f Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Wed, 12 Oct 2016 13:06:22 -0300 Subject: Fix posix_fadvise64 build on mips64n64 Recent binutils versions (at least 2.27) complains about libc.so when linking sotruss-lib.so with: libc.so:(*IND*+0x0): multiple definition of `posix_fadvise64@GLIBC_2.2' libc.so::(.text+0xcf940): first defined here libc.so:(*IND*+0x0): multiple definition of `posix_fadvise64' collect2: error: ld returned 1 exit status Dynamic symbols for libc.so shows (readelf --dyn-syms): 262: 000000000010b950 28 FUNC GLOBAL DEFAULT 12 posix_fadvise64@GLIBC_2.2 417: 000000000010b950 28 FUNC WEAK DEFAULT 12 posix_fadvise64@@GLIBC_2.2 1505: 000000000010b950 28 FUNC GLOBAL DEFAULT 12 posix_fadvise64@@GLIBC_2.3.3 That is, two separate definitions at version GLIBC_2.2. The issue is sysdeps/unix/sysv/linux/posix_fadvise64.c creates posix_fadvise64 weak_alias, while sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c then adds compat_symbol / versioned_symbol calls. The patch remove the weak_alias definition on mips64 specific version so direct weak_alias is disabled. Checked on mips64n64 build with binutils 2.27.51.20161012. * sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c: Undefine weak_alias. --- sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'sysdeps') diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c b/sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c index d7aab2545f..bc756e9b84 100644 --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c @@ -15,11 +15,16 @@ License along with the GNU C Library; if not, see . */ +#undef weak_alias +#define weak_alias(a, b) #undef strong_alias #define strong_alias(a, b) #include +/* Although both posix_fadvise and posix_fadvise64 has the same semantic + on mips64, there were were releases with both symbol versions (BZ#14044). + So we need to continue export them. */ #if SHLIB_COMPAT(libc, GLIBC_2_2, GLIBC_2_3_3) _strong_alias (__posix_fadvise64_l64, __posix_fadvise64_l32); compat_symbol (libc, __posix_fadvise64_l32, posix_fadvise64, GLIBC_2_2); -- cgit 1.4.1