Ubuntu 18.04编译glibc 2.28报错：syslog函数无法内联

环境与路径配置 #

GLIBC_VERSION="2.28"
GLIBC_DIR="$HOME/.local/src/opt/glibc-$GLIBC_VERSION"
GLIBC_TAR="$HOME/.local/src/opt/glibc-$GLIBC_VERSION.tar.gz"
GLIBC_INSTALL_DIR="$HOME/.local/opt/glibc-$GLIBC_VERSION"

下载与编译步骤 #

• 下载源码包：

wget --no-check-certificate https://ftp.gnu.org/gnu/glibc/glibc-$GLIBC_VERSION.tar.gz
# 解压至GLIBC_DIR目录

• 编译配置及执行：

mkdir build
cd build
../configure --prefix="$GLIBC_INSTALL_DIR" --enable-add-ons --disable-werror --with-headers=$HOME/.local/src/linux-header/include
make -j3

编译报错信息 #

.local/src/opt/glibc-2.28/build/misc/flistxattr.os
In file included from <command-line>:0:0:
../misc/syslog.c: In function '__vsyslog_chk':
../misc/syslog.c:121:30: error: inlining failed in call to always_inline 'syslog': function not inlinable
 ldbl_strong_alias (__syslog, syslog)
                              ^
./../include/libc-symbols.h:135:26: note: in definition of macro '_strong_alias'
   extern __typeof (name) aliasname __attribute__ ((alias (#name)));
                          ^~~~~~~~~
../sysdeps/generic/math_ldbl_opt.h:12:44: note: in expansion of macro 'strong_alias'
 #define ldbl_strong_alias(name, aliasname) strong_alias (name, aliasname)
                                            ^~~~~~~~~~~~
../misc/syslog.c:121:1: note: in expansion of macro 'ldbl_strong_alias'
 ldbl_strong_alias (__syslog, syslog)
 ^~~~~~~~~~~~~~~~~
In file included from ../sysdeps/unix/sysv/linux/syslog.c:4:0:
../misc/syslog.c:153:3: note: called from here
   syslog(INTERNALLOG,
   ^~~~~~~~~~~~~~~~~~~
       "syslog: unknown facility/priority: %x", pri);
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

错误中文说明：在__vsyslog_chk函数中，调用标记为always_inline的syslog函数时内联失败，提示该函数无法被内联，报错位置关联到ldbl_strong_alias宏对__syslog和syslog的别名定义，以及syslog函数在代码中的调用处。

已尝试的无效解决方法 #

• 方法一：

make clean
make -j2 CFLAGS="-U_FORTIFY_SOURCE -O2 -fno-stack-protector"

• 方法二：

configure CFLAGS="-O2 -U_FORTIFY_SOURCE -fno-stack-protector"
make -j2

• 方法三：

configure CFLAGS="-U_FORTIFY_SOURCE -O2 -fno-stack-protector" ${CFLAGS/-Wp,-D_FORTIFY_SOURCE=2/}
make -j2 CFLAGS="-U_FORTIFY_SOURCE -O2 -fno-stack-protector ${CFLAGS/-Wp,-D_FORTIFY_SOURCE=2/}"

内容的提问来源于stack exchange，提问作者zhang