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authorRoland McGrath <roland@gnu.org>1995-04-12 01:03:38 +0000
committerRoland McGrath <roland@gnu.org>1995-04-12 01:03:38 +0000
commit53afa8d96790cce8fd0d0ce71307bc7ae31c15fb (patch)
treeca8c58bb02b0d0fccc45e63708a775836c1cbe7e
parent217d85b9c89bc7d6e2c2db7fa93238a6b6f12d73 (diff)
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Tue Apr 11 20:38:55 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>cvs/libc-950411
* sysdeps/i386/add_n.S [PIC]: Use self-call to avoid generating reloc. * sysdeps/i386/sub_n.S [PIC]: Likewise. * libc-symbols.h (_elf_set_element) [PIC]: Don't make the element word `const'. * Makeconfig (CPPFLAGS, CFLAGS): Fix swapped references to $(foo-$(suffix $@)). * manual/Makefile (chapters-incl): Filter out summary.texi.
-rw-r--r--ChangeLog13
-rw-r--r--Makeconfig4
-rw-r--r--libc-symbols.h8
-rw-r--r--manual/Makefile4
-rw-r--r--sysdeps/i386/add_n.S7
-rw-r--r--sysdeps/i386/sub_n.S7
6 files changed, 39 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog
index f859c74789..668e4bfa84 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,18 @@
+Tue Apr 11 20:38:55 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+
+ * sysdeps/i386/add_n.S [PIC]: Use self-call to avoid generating reloc.
+ * sysdeps/i386/sub_n.S [PIC]: Likewise.
+
Mon Apr 10 14:53:15 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
+ * libc-symbols.h (_elf_set_element) [PIC]: Don't make the element
+ word `const'.
+
+ * Makeconfig (CPPFLAGS, CFLAGS): Fix swapped references to
+ $(foo-$(suffix $@)).
+
+ * manual/Makefile (chapters-incl): Filter out summary.texi.
+
* stdlib/strtod.c (STRTOF): Use extra macro to make STRTOF's #defn
a weak symbol instead of literal "STRTOF".
diff --git a/Makeconfig b/Makeconfig
index 1080646bc2..823b7f44f1 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -340,8 +340,8 @@ endif # gcc
# These are the variables that the implicit compilation rules use.
CPPFLAGS = $(+includes) $(defines) -include $(..)libc-symbols.h \
- $(sysdep-CPPFLAGS) $(CFLAGS-$(suffix $@))
-override CFLAGS = $(+cflags) $(sysdep-CFLAGS) $(CPPFLAGS-$(suffix $@))
+ $(sysdep-CPPFLAGS) $(CPPFLAGS-$(suffix $@))
+override CFLAGS = $(+cflags) $(sysdep-CFLAGS) $(CFLAGS-$(suffix $@))
# This is the macro that the implicit linking rules use.
diff --git a/libc-symbols.h b/libc-symbols.h
index 83773bfdc9..be88e7601b 100644
--- a/libc-symbols.h
+++ b/libc-symbols.h
@@ -153,9 +153,17 @@ Cambridge, MA 02139, USA. */
/* These are all done the same way in ELF.
There is a new section created for each set. */
+#ifdef PIC
+/* When building a shared library, make the set section writable,
+ because it will need to be relocated at run time anyway. */
+#define _elf_set_element(set, symbol) \
+ static const void *__elf_set_##set##_element_##symbol##__ \
+ __attribute__ ((section (#set))) = &(symbol)
+#else
#define _elf_set_element(set, symbol) \
static const void *const __elf_set_##set##_element_##symbol##__ \
__attribute__ ((section (#set))) = &(symbol)
+#endif
/* Define SET as a symbol set. This may be required (it is in a.out) to
be able to use the set's contents. */
diff --git a/manual/Makefile b/manual/Makefile
index 57e6ae2306..ca930fd481 100644
--- a/manual/Makefile
+++ b/manual/Makefile
@@ -1,6 +1,6 @@
# Makefile for the GNU C Library manual.
-# Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
+# Copyright (C) 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
# The GNU C Library is free software; you can redistribute it and/or
@@ -35,11 +35,11 @@ endif
include chapters
chapters: libc.texinfo
$(find-includes)
-chapters := $(filter-out summary.texi,$(chapters))
ifdef chapters
include chapters-incl
chapters-incl: $(chapters)
$(find-includes)
+chapters-incl := $(filter-out summary.texi,$(chapters-incl))
endif
define find-includes
diff --git a/sysdeps/i386/add_n.S b/sysdeps/i386/add_n.S
index f528976866..02f696ae5e 100644
--- a/sysdeps/i386/add_n.S
+++ b/sysdeps/i386/add_n.S
@@ -53,7 +53,14 @@ C_SYMBOL_NAME(__mpn_add_n:)
subl %eax,%esi /* ... by a constant when we ... */
subl %eax,%edx /* ... enter the loop */
shrl $2,%eax /* restore previous value */
+#ifdef PIC
+ call here
+here: leal (Loop - 3 - here)(%eax,%eax,8),%eax
+ addl (%esp),%eax
+ addl $4,%esp
+#else
leal (Loop - 3)(%eax,%eax,8),%eax /* calc start addr in loop */
+#endif
jmp *%eax /* jump into loop */
ALIGN (3)
Loop: movl (%esi),%eax
diff --git a/sysdeps/i386/sub_n.S b/sysdeps/i386/sub_n.S
index a1630d4562..63086bd7fd 100644
--- a/sysdeps/i386/sub_n.S
+++ b/sysdeps/i386/sub_n.S
@@ -53,7 +53,14 @@ C_SYMBOL_NAME(__mpn_sub_n:)
subl %eax,%esi /* ... by a constant when we ... */
subl %eax,%edx /* ... enter the loop */
shrl $2,%eax /* restore previous value */
+#ifdef PIC
+ call here
+here: leal (Loop - 3 - here)(%eax,%eax,8),%eax
+ addl (%esp),%eax
+ addl $4,%esp
+#else
leal (Loop - 3)(%eax,%eax,8),%eax /* calc start addr in loop */
+#endif
jmp *%eax /* jump into loop */
ALIGN (3)
Loop: movl (%esi),%eax