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2002-11-14 Roland McGrath <roland@redhat.com>

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* sysdeps/generic/errno.c (__libc_errno): Remove alias.
	* inet/herrno.c (__libc_h_errno): Likewise.
	* resolv/res_libc.c (__libc_res): Likewise.
	[USE___THREAD]: Use this in place of [USE_TLS && HAVE___THREAD].
	(__res_state) [! USE___THREAD]: Don't define as weak.
	* csu/Versions: Revert last change.
	* resolv/Versions: Revert last change.
This commit is contained in:
Roland McGrath
2002-11-15 03:36:52 +00:00
parent 42c6bd6199
commit 3fa5f1fa0a
5 changed files with 5 additions and 24 deletions
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4
csu/Versions
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@ -21,10 +21,6 @@ libc {
%if USE_TLS && HAVE___THREAD %if USE_TLS && HAVE___THREAD
# This version is for the TLS symbol, GLIBC_2.0 is the old object symbol. # This version is for the TLS symbol, GLIBC_2.0 is the old object symbol.
errno; errno;
%else
# This internal alias is solely to give libpthread access
# to the variable that is not directly user-visible at link time.
__libc_errno;
%endif %endif
} }
} }

3
inet/herrno.c
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@ -34,9 +34,6 @@ extern __thread int __libc_h_errno __attribute__ ((alias ("h_errno")))
int h_errno = 0; int h_errno = 0;
weak_alias (h_errno, _h_errno) weak_alias (h_errno, _h_errno)
/* This alias is needed by libpthread. */
strong_alias (h_errno, __libc_h_errno)
/* We declare these with compat_symbol so that they are not /* We declare these with compat_symbol so that they are not
visible at link time. Programs must use the accessor functions. */ visible at link time. Programs must use the accessor functions. */
# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING # if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING

4
resolv/Versions
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@ -35,10 +35,6 @@ libc {
%if USE_TLS && HAVE___THREAD %if USE_TLS && HAVE___THREAD
# This version is for the TLS symbol, GLIBC_2.0 is the old object symbol. # This version is for the TLS symbol, GLIBC_2.0 is the old object symbol.
h_errno; _res; h_errno; _res;
%else
# These internal aliases are solely to give libpthread access
# to the variables that are not directly user-visible.
__libc_h_errno; __libc_res;
%endif %endif
} }
} }

15
resolv/res_libc.c
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@ -24,22 +24,15 @@
#include <tls.h> #include <tls.h>
#if USE_TLS && HAVE___THREAD #if USE___THREAD
/* With __thread support, this per-thread variable is used in all cases. */ /* With __thread support, this per-thread variable is used in all cases. */
__thread struct __res_state _res; __thread struct __res_state _res;
extern __thread struct __res_state __libc_res __attribute__ ((alias ("_res"))) extern __thread struct __res_state __libc_res __attribute__ ((alias ("_res")))
attribute_hidden; attribute_hidden;
# define _res __libc_res # define _res __libc_res
#else #else
/* The resolver state for use by single-threaded programs. /* The resolver state for use by single-threaded programs. */
struct __res_state _res;
This differs from a plain uninitialized definition in that it doesn't
create a common definition, but a plain symbol that resides in .bss,
which can have an alias. */
struct __res_state _res __attribute__ ((section (".bss")));
/* This alias is needed by libpthread. */
strong_alias (_res, __libc_res)
/* We declare this with compat_symbol so that it's not /* We declare this with compat_symbol so that it's not
visible at link time. Programs must use the accessor functions. */ visible at link time. Programs must use the accessor functions. */
@ -52,7 +45,9 @@ compat_symbol (libc, _res, _res, GLIBC_2_0);
/* This function is used to access the resolver state in /* This function is used to access the resolver state in
single-threaded programs. */ single-threaded programs. */
struct __res_state * struct __res_state *
#if ! USE___THREAD
weak_const_function weak_const_function
#endif
__res_state (void) __res_state (void)
{ {
return &_res; return &_res;

3
sysdeps/generic/errno.c
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@ -32,9 +32,6 @@ extern __thread int __libc_errno __attribute__ ((alias ("errno")))
int errno __attribute__ ((section (".bss"))); int errno __attribute__ ((section (".bss")));
strong_alias (errno, _errno) strong_alias (errno, _errno)
/* This alias is needed by libpthread. */
strong_alias (errno, __libc_errno)
/* We declare these with compat_symbol so that they are not /* We declare these with compat_symbol so that they are not
visible at link time. Programs must use the accessor functions. */ visible at link time. Programs must use the accessor functions. */
# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING # if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING