diff options
| -rwxr-xr-x | configure | 38 | ||||
| -rw-r--r-- | src/internal/vis.h | 27 |
2 files changed, 0 insertions, 65 deletions
@@ -31,7 +31,6 @@ Optional features: --enable-optimize=... optimize listed components for speed over size [auto] --enable-debug build with debugging information [disabled] --enable-warnings build with recommended warnings flags [disabled] - --enable-visibility use global visibility options to optimize PIC [no] --enable-wrapper=... build given musl toolchain wrapper [auto] --disable-shared inhibit building shared library [enabled] --disable-static inhibit building static library [enabled] @@ -135,7 +134,6 @@ target= optimize=auto debug=no warnings=no -visibility=no shared=auto static=yes wrapper=auto @@ -163,9 +161,6 @@ case "$arg" in --disable-debug|--enable-debug=no) debug=no ;; --enable-warnings|--enable-warnings=yes) warnings=yes ;; --disable-warnings|--enable-warnings=no) warnings=no ;; ---enable-visibility=auto) visibility=auto ;; ---enable-visibility|--enable-visibility=yes) visibility=yes ;; ---disable-visibility|--enable-visibility=no) visibility=no ;; --enable-wrapper|--enable-wrapper=yes) wrapper=detect ;; --enable-wrapper=all) wrapper=yes ; gcc_wrapper=yes ; clang_wrapper=yes ;; --enable-wrapper=gcc) wrapper=yes ; gcc_wrapper=yes ;; @@ -525,39 +520,6 @@ tryflag CFLAGS_AUTO -Wno-unknown-pragmas tryflag CFLAGS_AUTO -Wno-pointer-to-int-cast fi -if test "x$visibility" = xauto ; then -# This test checks toolchain support for several things: -# - the -include option -# - the attributes/pragmas used in vis.h -# - linking code that takes the address of protected symbols -# - gcc 3.x bug that wrongly claims declarations mismatch -printf "checking whether global visibility preinclude works... " -cat > "$tmpc" <<EOF -__attribute__((__visibility__("default"))) -extern struct a *const x; -typedef struct a b; -extern b *const x; -b *const x; -int (*fp)(void); -int foo(void) { } -int bar(void) { fp = foo; return foo(); } -EOF -if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \ - -DSHARED -fPIC -I$srcdir/src/internal -include vis.h \ - -nostdlib -shared -Wl,-Bsymbolic-functions \ - -o /dev/null "$tmpc" >/dev/null 2>&1 ; then -visibility=yes -else -visibility=no -fi -printf "%s\n" "$visibility" -fi - -if test "x$visibility" = xyes ; then -CFLAGS_AUTO="$CFLAGS_AUTO -include vis.h" -CFLAGS_AUTO="${CFLAGS_AUTO# }" -fi - # Determine if the compiler produces position-independent code (PIC) # by default. If so, we don't need to compile separate object files # for libc.a and libc.so. diff --git a/src/internal/vis.h b/src/internal/vis.h deleted file mode 100644 index 35855fc8..00000000 --- a/src/internal/vis.h +++ /dev/null @@ -1,27 +0,0 @@ -/* This file is only used if enabled in the build system, in which case it is - * included automatically via command line options. It is not included - * explicitly by any source files or other headers. Its purpose is to - * override default visibilities to reduce the size and performance costs - * of position-independent code. */ - -#if !defined(CRT) && !defined(__ASSEMBLER__) - -/* Conceptually, all symbols should be protected, but some toolchains - * fail to support copy relocations for protected data, so exclude all - * exported data symbols. */ - -__attribute__((__visibility__("default"))) -extern struct _IO_FILE *const stdin, *const stdout, *const stderr; - -__attribute__((__visibility__("default"))) -extern int optind, opterr, optopt, optreset, __optreset, getdate_err, h_errno, daylight, __daylight, signgam, __signgam; - -__attribute__((__visibility__("default"))) -extern long timezone, __timezone; - -__attribute__((__visibility__("default"))) -extern char *optarg, **environ, **__environ, *tzname[2], *__tzname[2], *__progname, *__progname_full; - -#pragma GCC visibility push(protected) - -#endif |