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libc-symbols.h: remove unused macros

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Beside weak_hidden_alias/declare_symbol_alias/hidden_data_ver, many
*_hidden_* macros are removed.  If there is a rare need to use one, one
may write something like `#if IS_IN (libm)\nhidden_def (...)\n#endif`
instead.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
This commit is contained in:
Fangrui Song 2022-07-04 21:15:51 -07:00
parent 8ee2c043cf
commit 62595e8944
1 changed files with 0 additions and 169 deletions
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169
include/libc-symbols.h
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@ -155,14 +155,6 @@
extern __typeof (name) aliasname __attribute__ ((weak, alias (#name))) \
__attribute_copy__ (name);
/* Same as WEAK_ALIAS, but mark symbol as hidden. */
# define weak_hidden_alias(name, aliasname) \
_weak_hidden_alias (name, aliasname)
# define _weak_hidden_alias(name, aliasname) \
extern __typeof (name) aliasname \
__attribute__ ((weak, alias (#name), __visibility__ ("hidden"))) \
__attribute_copy__ (name);
/* Declare SYMBOL as weak undefined symbol (resolved to 0 if not defined). */
# define weak_extern(symbol) _weak_extern (weak symbol)
# define _weak_extern(expr) _Pragma (#expr)
@ -332,14 +324,6 @@ for linking")
.type C_SYMBOL_NAME (symbol), %object ASM_LINE_SEP \
.size C_SYMBOL_NAME (symbol), s_size ASM_LINE_SEP
#else /* Not __ASSEMBLER__. */
# define declare_symbol_alias(symbol, original, type, size) \
declare_symbol_alias_1 (symbol, original, type, size)
# define declare_symbol_alias_1(symbol, original, type, size) \
asm (".globl " __SYMBOL_PREFIX #symbol \
"\n\t" declare_symbol_alias_1_alias (symbol, original) \
"\n\t.type " __SYMBOL_PREFIX #symbol ", " \
"%" #type \
"\n\t.size " __SYMBOL_PREFIX #symbol ", " #size);
# ifdef HAVE_ASM_SET_DIRECTIVE
# define declare_symbol_alias_1_alias(symbol, original) \
".set " __SYMBOL_PREFIX #symbol ", " __SYMBOL_PREFIX #original
@ -556,7 +540,6 @@ for linking")
__attribute__((alias (__hidden_asmname (#local)))) \
__attribute_copy__ (name)
# define hidden_ver(local, name) __hidden_ver1(local, __GI_##name, name);
# define hidden_data_ver(local, name) hidden_ver(local, name)
# define hidden_def(name) __hidden_ver1(__GI_##name, name, name);
# define hidden_def_alias(name, internal) \
strong_alias (name, internal)
@ -595,7 +578,6 @@ for linking")
# define hidden_data_def_alias(name, alias) strong_data_alias (name, alias)
# define hidden_tls_def(name) hidden_data_def (name)
# define hidden_data_weak(name) hidden_data_def (name)
# define hidden_data_ver(local, name) strong_data_alias (local, __GI_##name)
# define HIDDEN_JUMPTARGET(name) __GI_##name
# endif
#else
@ -631,7 +613,6 @@ for linking")
# define hidden_data_def(name)
# define hidden_data_def_alias(name, alias)
# define hidden_tls_def(name)
# define hidden_data_ver(local, name)
# define hidden_nolink(name, lib, version)
#endif
@ -641,7 +622,6 @@ for linking")
hidden_proto_alias (name, alias, ##attrs)
# define libc_hidden_tls_proto(name, attrs...) hidden_tls_proto (name, ##attrs)
# define libc_hidden_def(name) hidden_def (name)
# define libc_hidden_def_alias(name, alias) hidden_def_alias (name, alias)
# define libc_hidden_weak(name) hidden_weak (name)
# define libc_hidden_nolink_sunrpc(name, version) hidden_nolink (name, libc, version)
# define libc_hidden_ver(local, name) hidden_ver (local, name)
@ -649,7 +629,6 @@ for linking")
# define libc_hidden_data_def_alias(name, alias) hidden_data_def_alias (name, alias)
# define libc_hidden_tls_def(name) hidden_tls_def (name)
# define libc_hidden_data_weak(name) hidden_data_weak (name)
# define libc_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libc_hidden_proto(name, attrs...)
# define libc_hidden_proto_alias(name, alias, attrs...)
@ -661,228 +640,83 @@ for linking")
# define libc_hidden_data_def_alias(name, alias)
# define libc_hidden_tls_def(name)
# define libc_hidden_data_weak(name)
# define libc_hidden_data_ver(local, name)
#endif
#if IS_IN (rtld)
# define rtld_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define rtld_hidden_tls_proto(name, attrs...) hidden_tls_proto (name, ##attrs)
# define rtld_hidden_def(name) hidden_def (name)
# define rtld_hidden_weak(name) hidden_weak (name)
# define rtld_hidden_ver(local, name) hidden_ver (local, name)
# define rtld_hidden_data_def(name) hidden_data_def (name)
# define rtld_hidden_tls_def(name) hidden_tls_def (name)
# define rtld_hidden_data_weak(name) hidden_data_weak (name)
# define rtld_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define rtld_hidden_proto(name, attrs...)
# define rtld_hidden_tls_proto(name, attrs...)
# define rtld_hidden_def(name)
# define rtld_hidden_weak(name)
# define rtld_hidden_ver(local, name)
# define rtld_hidden_data_def(name)
# define rtld_hidden_tls_def(name)
# define rtld_hidden_data_weak(name)
# define rtld_hidden_data_ver(local, name)
#endif
#if IS_IN (libm)
# define libm_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libm_hidden_tls_proto(name, attrs...) hidden_tls_proto (name, ##attrs)
# define libm_hidden_def(name) hidden_def (name)
# define libm_hidden_weak(name) hidden_weak (name)
# define libm_hidden_ver(local, name) hidden_ver (local, name)
# define libm_hidden_data_def(name) hidden_data_def (name)
# define libm_hidden_tls_def(name) hidden_tls_def (name)
# define libm_hidden_data_weak(name) hidden_data_weak (name)
# define libm_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libm_hidden_proto(name, attrs...)
# define libm_hidden_tls_proto(name, attrs...)
# define libm_hidden_def(name)
# define libm_hidden_weak(name)
# define libm_hidden_ver(local, name)
# define libm_hidden_data_def(name)
# define libm_hidden_tls_def(name)
# define libm_hidden_data_weak(name)
# define libm_hidden_data_ver(local, name)
#endif
#if IS_IN (libmvec)
# define libmvec_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libmvec_hidden_tls_proto(name, attrs...) hidden_tls_proto (name, ##attrs)
# define libmvec_hidden_def(name) hidden_def (name)
# define libmvec_hidden_weak(name) hidden_weak (name)
# define libmvec_hidden_ver(local, name) hidden_ver (local, name)
# define libmvec_hidden_data_def(name) hidden_data_def (name)
# define libmvec_hidden_tls_def(name) hidden_tls_def (name)
# define libmvec_hidden_data_weak(name) hidden_data_weak (name)
# define libmvec_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libmvec_hidden_proto(name, attrs...)
# define libmvec_hidden_tls_proto(name, attrs...)
# define libmvec_hidden_def(name)
# define libmvec_hidden_weak(name)
# define libmvec_hidden_ver(local, name)
# define libmvec_hidden_data_def(name)
# define libmvec_hidden_tls_def(name)
# define libmvec_hidden_data_weak(name)
# define libmvec_hidden_data_ver(local, name)
#endif
#if IS_IN (libresolv)
# define libresolv_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libresolv_hidden_tls_proto(name, attrs...) \
hidden_tls_proto (name, ##attrs)
# define libresolv_hidden_def(name) hidden_def (name)
# define libresolv_hidden_weak(name) hidden_weak (name)
# define libresolv_hidden_ver(local, name) hidden_ver (local, name)
# define libresolv_hidden_data_def(name) hidden_data_def (name)
# define libresolv_hidden_tls_def(name) hidden_tls_def (name)
# define libresolv_hidden_data_weak(name) hidden_data_weak (name)
# define libresolv_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libresolv_hidden_proto(name, attrs...)
# define libresolv_hidden_tls_proto(name, attrs...)
# define libresolv_hidden_def(name)
# define libresolv_hidden_weak(name)
# define libresolv_hidden_ver(local, name)
# define libresolv_hidden_data_def(name)
# define libresolv_hidden_tls_def(name)
# define libresolv_hidden_data_weak(name)
# define libresolv_hidden_data_ver(local, name)
#endif
#if IS_IN (libpthread)
# define libpthread_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libpthread_hidden_tls_proto(name, attrs...) \
hidden_tls_proto (name, ##attrs)
# define libpthread_hidden_def(name) hidden_def (name)
# define libpthread_hidden_weak(name) hidden_weak (name)
# define libpthread_hidden_ver(local, name) hidden_ver (local, name)
# define libpthread_hidden_data_def(name) hidden_data_def (name)
# define libpthread_hidden_tls_def(name) hidden_tls_def (name)
# define libpthread_hidden_data_weak(name) hidden_data_weak (name)
# define libpthread_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libpthread_hidden_proto(name, attrs...)
# define libpthread_hidden_tls_proto(name, attrs...)
# define libpthread_hidden_def(name)
# define libpthread_hidden_weak(name)
# define libpthread_hidden_ver(local, name)
# define libpthread_hidden_data_def(name)
# define libpthread_hidden_tls_def(name)
# define libpthread_hidden_data_weak(name)
# define libpthread_hidden_data_ver(local, name)
#endif
#if IS_IN (librt)
# define librt_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define librt_hidden_tls_proto(name, attrs...) \
hidden_tls_proto (name, ##attrs)
# define librt_hidden_def(name) hidden_def (name)
# define librt_hidden_weak(name) hidden_weak (name)
# define librt_hidden_ver(local, name) hidden_ver (local, name)
# define librt_hidden_data_def(name) hidden_data_def (name)
# define librt_hidden_tls_def(name) hidden_tls_def (name)
# define librt_hidden_data_weak(name) hidden_data_weak (name)
# define librt_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define librt_hidden_proto(name, attrs...)
# define librt_hidden_tls_proto(name, attrs...)
# define librt_hidden_def(name)
# define librt_hidden_weak(name)
# define librt_hidden_ver(local, name)
# define librt_hidden_data_def(name)
# define librt_hidden_tls_def(name)
# define librt_hidden_data_weak(name)
# define librt_hidden_data_ver(local, name)
#endif
#if IS_IN (libdl)
# define libdl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libdl_hidden_tls_proto(name, attrs...) \
hidden_tls_proto (name, ##attrs)
# define libdl_hidden_def(name) hidden_def (name)
# define libdl_hidden_weak(name) hidden_weak (name)
# define libdl_hidden_ver(local, name) hidden_ver (local, name)
# define libdl_hidden_data_def(name) hidden_data_def (name)
# define libdl_hidden_tls_def(name) hidden_tls_def (name)
# define libdl_hidden_data_weak(name) hidden_data_weak (name)
# define libdl_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libdl_hidden_proto(name, attrs...)
# define libdl_hidden_tls_proto(name, attrs...)
# define libdl_hidden_def(name)
# define libdl_hidden_weak(name)
# define libdl_hidden_ver(local, name)
# define libdl_hidden_data_def(name)
# define libdl_hidden_tls_def(name)
# define libdl_hidden_data_weak(name)
# define libdl_hidden_data_ver(local, name)
#endif
#if IS_IN (libnsl)
# define libnsl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libnsl_hidden_tls_proto(name, attrs...) \
hidden_tls_proto (name, ##attrs)
# define libnsl_hidden_nolink_def(name, version) hidden_nolink (name, libnsl, version)
# define libnsl_hidden_weak(name) hidden_weak (name)
# define libnsl_hidden_ver(local, name) hidden_ver (local, name)
# define libnsl_hidden_data_def(name) hidden_data_def (name)
# define libnsl_hidden_tls_def(name) hidden_tls_def (name)
# define libnsl_hidden_data_weak(name) hidden_data_weak (name)
# define libnsl_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libnsl_hidden_proto(name, attrs...)
# define libnsl_hidden_tls_proto(name, attrs...)
# define libnsl_hidden_weak(name)
# define libnsl_hidden_ver(local, name)
# define libnsl_hidden_data_def(name)
# define libnsl_hidden_tls_def(name)
# define libnsl_hidden_data_weak(name)
# define libnsl_hidden_data_ver(local, name)
#endif
#define libc_hidden_builtin_proto(name, attrs...) libc_hidden_proto (name, ##attrs)
#define libc_hidden_builtin_def(name) libc_hidden_def (name)
#define libc_hidden_builtin_weak(name) libc_hidden_weak (name)
#define libc_hidden_builtin_ver(local, name) libc_hidden_ver (local, name)
#define libc_hidden_ldbl_proto(name, attrs...) libc_hidden_proto (name, ##attrs)
#ifdef __ASSEMBLER__
# define HIDDEN_BUILTIN_JUMPTARGET(name) HIDDEN_JUMPTARGET(name)
#endif
#if IS_IN (libutil)
# define libutil_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libutil_hidden_tls_proto(name, attrs...) \
hidden_tls_proto (name, ##attrs)
# define libutil_hidden_def(name) hidden_def (name)
# define libutil_hidden_weak(name) hidden_weak (name)
# define libutil_hidden_ver(local, name) hidden_ver (local, name)
# define libutil_hidden_data_def(name) hidden_data_def (name)
# define libutil_hidden_tls_def(name) hidden_tls_def (name)
# define libutil_hidden_data_weak(name) hidden_data_weak (name)
# define libutil_hidden_data_ver(local, name) hidden_data_ver (local, name)
#else
# define libutil_hidden_proto(name, attrs...)
# define libutil_hidden_tls_proto(name, attrs...)
# define libutil_hidden_def(name)
# define libutil_hidden_weak(name)
# define libutil_hidden_ver(local, name)
# define libutil_hidden_data_def(name)
# define libutil_hidden_tls_def(name)
# define libutil_hidden_data_weak(name)
# define libutil_hidden_data_ver(local, name)
#endif
#if IS_IN (libanl)
# define libanl_hidden_proto(name, attrs...) hidden_proto (name, ##attrs)
# define libanl_hidden_def(name) hidden_def (name)
#else
# define libanl_hidden_proto(name, attrs...)
# define libanl_hidden_def(name)
#endif
/* Get some dirty hacks. */
@ -893,11 +727,8 @@ for linking")
#ifndef __ASSEMBLER__
# define attribute_compat_text_section \
__attribute__ ((section (".text.compat")))
# define attribute_compat_data_section \
__attribute__ ((section (".data.compat")))
#else
# define compat_text_section .section ".text.compat", "ax";
# define compat_data_section .section ".data.compat", "aw";
#endif
/* Helper / base macros for indirect function symbols. */