* config/linux.h, config/i386/linux.h, config/sparc/linux.h:

	Remove definitions conditioned on USE_GNULIBC_1 or conditioned
	out, and associated obsolete comments.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85600 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 31 deletions

diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h
index 85e6cf2c98f..08b859ac310 100644
--- a/gcc/config/i386/linux.h
+++ b/gcc/config/i386/linux.h
@@ -83,11 +83,7 @@ Boston, MA 02111-1307, USA.  */
   while (0)
 
 #undef CPP_SPEC
-#ifdef USE_GNULIBC_1
-#define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
-#else
 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
-#endif
 
 #undef CC1_SPEC
 #define CC1_SPEC "%(cc1_cpu) %{profile:-p}"
@@ -109,11 +105,7 @@ Boston, MA 02111-1307, USA.  */
 /* If ELF is the default format, we should not use /lib/elf.  */
 
 #define LINK_EMULATION "elf_i386"
-#ifdef USE_GNULIBC_1
-# define DYNAMIC_LINKER "/lib/ld-linux.so.1"
-#else
-# define DYNAMIC_LINKER "/lib/ld-linux.so.2"
-#endif
+#define DYNAMIC_LINKER "/lib/ld-linux.so.2"
 
 #undef  SUBTARGET_EXTRA_SPECS
 #define SUBTARGET_EXTRA_SPECS \
@@ -153,24 +145,6 @@ Boston, MA 02111-1307, USA.  */
   } while (0)
 #endif
 
-#if defined(__PIC__) && defined (USE_GNULIBC_1)
-/* This is a kludge. The i386 GNU/Linux dynamic linker needs ___brk_addr,
-   __environ and atexit.  We have to make sure they are in the .dynsym
-   section.  We do this by forcing the assembler to create undefined 
-   references to these symbols in the object file.  */
-#undef CRT_CALL_STATIC_FUNCTION
-#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
-   asm (SECTION_OP "\n\t"				\
-	"call " USER_LABEL_PREFIX #FUNC "\n"		\
-	TEXT_SECTION_ASM_OP "\n\t"			\
-	".extern ___brk_addr\n\t"			\
-	".type ___brk_addr,@object\n\t"			\
-	".extern __environ\n\t"				\
-	".type __environ,@object\n\t"			\
-	".extern atexit\n\t"				\
-	".type atexit,@function");
-#endif
-
 /* Handle special EH pointer encodings.  Absolute, pc-relative, and
    indirect are handled automatically.  */
 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
@@ -211,11 +185,11 @@ Boston, MA 02111-1307, USA.  */
    state data appropriately.  See unwind-dw2.c for the structs.  */
 
 #ifdef IN_LIBGCC2
-/* There's no sys/ucontext.h for some (all?) libc1, so no
+/* There's no sys/ucontext.h for glibc 2.0, so no
    signal-turned-exceptions for them.  There's also no configure-run for
    the target, so we can't check on (e.g.) HAVE_SYS_UCONTEXT_H.  Using the
-   target libc1 macro should be enough.  */
-#if !(defined (USE_GNULIBC_1) || (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0))
+   target libc version macro should be enough.  */
+#if !(__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
 #include <signal.h>
 #include <sys/ucontext.h>
 
@@ -274,5 +248,5 @@ Boston, MA 02111-1307, USA.  */
     (FS)->retaddr_column = 8;						\
     goto SUCCESS;							\
   } while (0)
-#endif /* not USE_GNULIBC_1 */
+#endif /* not glibc 2.0 */
 #endif /* IN_LIBGCC2 */