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authorRoland McGrath <roland@gnu.org>1995-05-09 07:03:38 +0000
committerRoland McGrath <roland@gnu.org>1995-05-09 07:03:38 +0000
commit273d56ce89f26233cb7a703c542d2732adbea87d (patch)
treee489d7e9e6cd644a5d0d85d4b39a8c75692e3633
parent421f82e5cc8f81ab003247d771bcecbad799be85 (diff)
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(__data_start): Define this symbol as the first thing in .data.
-rw-r--r--Makeconfig18
-rw-r--r--Makerules52
-rwxr-xr-xconfigure34
-rw-r--r--elf/dl-error.c1
-rw-r--r--elf/dlsym.c2
-rw-r--r--elf/elf.h2
-rw-r--r--elf/rtld.c24
-rw-r--r--hurd/hurdstartup.h63
-rw-r--r--sysdeps/i386/elf/start.S10
-rw-r--r--sysdeps/mach/_strerror.c23
10 files changed, 185 insertions, 44 deletions
diff --git a/Makeconfig b/Makeconfig
index cb3c065ddc..f001982496 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -78,11 +78,21 @@ endif
# Get the values defined by options to `configure'.
include $(common-objpfx)config.make
+# Run config.status to update config.make and config.h. We don't show the
+# dependence of config.h to Make, because it is only touched when it
+# changes and so config.status would be run every time; the dependence of
+# config.make should suffice to force regeneration and re-exec, and the new
+# image will notice if config.h changed.
+$(common-objpfx)config.make: $(common-objpfx)config.status
+ cd $(<D); $(SHELL) $(<F)
+
# Force the user to configure before making.
-$(common-objpfx)config.make:
- @echo The GNU C library has not been configured. >&2
- @echo Run \`configure\' to configure it before building. >&2
- @exit 1
+$(common-objpfx)config.status: $(..)configure
+ @cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
+ echo The GNU C library has not been configured. >&2; \
+ echo Run \`configure\' to configure it before building. >&2; \
+ echo Try \`configure --help\' for more details. >&2; \
+ exit 1; fi
# Get the user's configuration parameters.
ifneq ($(wildcard $(..)configparms),)
diff --git a/Makerules b/Makerules
index 0e67398dad..e36bf7b738 100644
--- a/Makerules
+++ b/Makerules
@@ -86,9 +86,15 @@ in-Makerules := yes
ifndef avoid-generated
include $(+sysdir_pfx)sysd-Makefile
-$(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules
+ifneq ($(sysd-Makefile-sysdirs),$(sysdirs))
+sysd-Makefile-force = FORCE
+FORCE:
+endif
+$(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
+ $(sysd-Makefile-force)
-@rm -f $@T
- (for dir in $(sysdirs); do \
+ (echo 'sysd-Makefile-sysdirs := $(sysdirs)'; \
+ for dir in $(sysdirs); do \
file=sysdeps/$$dir/Makefile; \
if [ -f $(..)$$file ]; then \
echo include "\$$(..)$$file"; \
@@ -192,12 +198,20 @@ endif
# contents of sysd-rules.
ifdef sysd-Makefile-done
include $(+sysdir_pfx)sysd-rules
+ifneq ($(sysd-rules-sysdirs),$(sysdirs))
+# The value of $(sysdirs) the sysd-rules was computed for
+# differs from the one we are using now. So force a rebuild of sysd-rules.
+sysd-rules-force = FORCE
+FORCE:
+endif
endif
$(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
$(wildcard $(foreach dir,$(sysdirs),\
- $(sysdep_dir)/$(dir)/Makefile))
+ $(sysdep_dir)/$(dir)/Makefile))\
+ $(sysd-rules-force)
-@rm -f $@T
- (for sysdir in $(sysdirs); do \
+ (echo 'sysd-rules-sysdirs := $(sysdirs)'; \
+ for sysdir in $(sysdirs); do \
dir="\$$(sysdep_dir)/$$sysdir"; \
for o in $(object-suffixes); do \
$(open-check-inhibit-asm) \
@@ -351,7 +365,7 @@ lib%.so: lib%_pic.a
# since we define our own `.init' section specially.
LDFLAGS-c.so = -nostdlib
# Give libc.so an entry point and make it directly runnable itself.
-LDFLAGS-c.so += -Wl,-interp -Wl,/lib/ld.so -e __libc_print_version
+LDFLAGS-c.so += -Wl,-dynamic-linker -Wl,/lib/ld.so -e __libc_print_version
endif
libobjs: $(foreach o,$(object-suffixes),\
@@ -472,23 +486,33 @@ $(installed-libcs): $(libdir)/lib$(libprefix)%: libobjs subdir_install
$(RANLIB) $@
endif
-install-lib.so := libc.so $(filter lib%.so,$(install-lib))
-install-lib := $(filter-out lib%.so,$(install-lib))
+define do-install-program
+$(make-target-directory)
+$(INSTALL_PROGRAM) $< $@.new
+mv -f $@.new $@
+endef
+
+install-lib.so := libc.so $(filter %.so,$(install-lib))
+install-lib := $(filter-out %.so,$(install-lib))
ifeq (yes,$(build-shared))
-install: $(foreach so,$(install-lib.so), \
- $(libdir)/$(so:lib%=lib$(libprefix)%).$($(so)-version))
-$(libdir)/lib$(libprefix)%.so: $(common-objpfx)lib%.so; $(do-install)
+install: $(foreach so,$(install-lib.so),\
+ $(libdir)/$(patsubst $(libprefix)lib%,lib$(libprefix)%,\
+ $(libprefix)$(so))$($(so)-version))
+$(foreach v,$(sort $(foreach so,$(install-lib.so),.so$((so)-version))),\
+ $(libdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so
+ $(do-install-program)
+$(foreach v,$(sort $(foreach so,$(install-lib.so),.so$((so)-version))),\
+ $(libdir)/$(libprefix)%$v): $(common-objpfx)%.so
+ $(do-install-program)
endif
ifdef install-bin
$(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)%
- $(make-target-directory)
- $(INSTALL_PROGRAM) $< $@
+ $(do-install-program)
endif
ifdef install-sbin
$(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)%
- $(make-target-directory)
- $(INSTALL_PROGRAM) $< $@
+ $(do-install-program)
endif
ifdef install-lib
install-lib.a := $(filter lib%.a,$(install-lib))
diff --git a/configure b/configure
index 36fcca0d5b..6f043c4106 100755
--- a/configure
+++ b/configure
@@ -660,9 +660,9 @@ mach=
tail=$machine
while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
set $m
- # If using ELF, look for an `elf' subdirectory of each machine directory.
- if test "$elf" = yes; then
- mach="$mach /$1/elf"
+ # Prepend the machine's FPU directory unless --without-fp.
+ if test "$with_fp" = yes; then
+ mach="$mach /$1/fpu"
fi
mach="$mach /$1"
tail="$2"
@@ -698,21 +698,25 @@ fi
# We have now validated the configuration.
-# Remove the leading slashes.
-sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
-
-# Prepend the machine's FPU directory unless --without-fp.
-if test "$with_fp" = yes; then
- fpu_dirs=
+# If using ELF, look for an `elf' subdirectory of each machine directory.
+# We prepend these rather than inserting them whereever the machine appears
+# because things specified by the machine's ELF ABI should override
+# OS-specific things, and should always be the same for any OS on the
+# machine (otherwise what's the point of an ABI?).
+if test "$elf" = yes; then
+ elf_dirs=
for m in $mach; do
- if test -d $sysdep_dir$m/fpu; then
- fpu_dirs="$fpu_dirs $m/fpu"
+ if test -d $sysdep_dir$m/elf; then
+ elf_dirs="$elf_dirs $m/elf"
fi
done
- sysnames="`echo $fpu_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
+ sysnames="`echo $elf_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
fi
+# Remove the leading slashes.
+sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
+
# Expand the list of system names into a full list of directories
# from each element's parent name and Implies file (if present).
@@ -993,7 +997,7 @@ else
# On the NeXT, cc -E runs the code through the compiler's parser,
# not just through cpp.
cat > conftest.$ac_ext <<EOF
-#line 997 "configure"
+#line 1001 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
@@ -1007,7 +1011,7 @@ else
rm -rf conftest*
CPP="${CC-cc} -E -traditional-cpp"
cat > conftest.$ac_ext <<EOF
-#line 1011 "configure"
+#line 1015 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
@@ -1059,7 +1063,7 @@ if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&4
else
cat > conftest.$ac_ext <<EOF
-#line 1063 "configure"
+#line 1067 "configure"
#include "confdefs.h"
#define __need_size_t
#define __need_wchar_t
diff --git a/elf/dl-error.c b/elf/dl-error.c
index 5f8e4e4088..acb21a0414 100644
--- a/elf/dl-error.c
+++ b/elf/dl-error.c
@@ -30,6 +30,7 @@ _dl_signal_error (int errcode,
const char *errstring)
{
signalled_errstring = errstring ?: "DYNAMIC LINKER BUG!!!";
+ signalled_objname = objname;
longjmp (catch_env, errcode ?: -1);
}
diff --git a/elf/dlsym.c b/elf/dlsym.c
index 3e10812da8..dbd617ec9a 100644
--- a/elf/dlsym.c
+++ b/elf/dlsym.c
@@ -33,7 +33,7 @@ dlsym (void *handle, const char *name)
void doit (void)
{
const Elf32_Sym *ref = NULL;
- value = _dl_lookup_symbol (name, map->l_name, &ref, map);
+ value = _dl_lookup_symbol (name, &ref, map, map->l_name);
}
/* Confine the symbol scope to just this map. */
diff --git a/elf/elf.h b/elf/elf.h
index 40c0cd8aab..433aa479e7 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -545,7 +545,7 @@ typedef struct
/* Legal values for p_type field of Elf32_Phdr. */
-#define PT_MIPS_REGINFO 0x70000000 /* Regiser usage information */
+#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
/* Legal values for d_tag field of Elf32_Dyn. */
diff --git a/elf/rtld.c b/elf/rtld.c
index 0605336603..85f258a948 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -261,3 +261,27 @@ void
_dl_r_debug_state (void)
{
}
+
+#ifndef NDEBUG
+
+/* Define (weakly) our own assert failure function which doesn't use stdio.
+ If we are linked into the user program (-ldl), the normal __assert_fail
+ defn can override this one. */
+
+#include "../stdio/_itoa.h"
+
+void
+__assert_fail (const char *assertion,
+ const char *file, unsigned int line, const char *function)
+{
+ char buf[64];
+ buf[sizeof buf - 1] = '\0';
+ _dl_sysdep_fatal ("BUG IN DYNAMIC LINKER ld.so: ",
+ file, ": ", _itoa (line, buf + sizeof buf - 1, 10, 0),
+ ": ", function ?: "", function ? ": " : "",
+ "Assertion `", assertion, "' failed!\n");
+
+}
+weak_symbol (__assert_fail)
+
+#endif
diff --git a/hurd/hurdstartup.h b/hurd/hurdstartup.h
new file mode 100644
index 0000000000..fd6a36605d
--- /dev/null
+++ b/hurd/hurdstartup.h
@@ -0,0 +1,63 @@
+/* Data from initial program startup for running under the GNU Hurd.
+Copyright (C) 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
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA. */
+
+#ifndef _HURDSTARTUP_H
+#define _HURDSTARTUP_H 1
+
+
+/* Interesting data saved from the exec_startup reply.
+ The DATA argument to *MAIN (see below) points to:
+
+ int argc;
+ char *argv[argc];
+ char *argv_terminator = NULL;
+ char *envp[?];
+ char *envp_terminator = NULL;
+ struct hurd_startup_data data;
+
+*/
+
+struct hurd_startup_data
+ {
+ int flags;
+ mach_port_t *dtable;
+ mach_msg_type_number_t dtablesize;
+ mach_port_t *portarray;
+ mach_msg_type_number_t portarraysize;
+ int *intarray;
+ mach_msg_type_number_t intarraysize;
+ vm_address_t stack_base;
+ vm_size_t stack_size;
+ vm_address_t phdr;
+ vm_size_t phdrsz;
+ vm_address_t user_entry;
+ };
+
+
+/* Initialize Mach RPCs; do initial handshake with the exec server (or
+ extract the arguments from the stack in the case of the bootstrap task);
+ finally, call *MAIN with the information gleaned. That function is not
+ expected to return. ARGPTR should be the address of the first argument
+ of the entry point function that is called with the stack exactly as the
+ exec server or kernel sets it. */
+
+extern void _hurd_startup (void **argptr, void (*main) (int *data));
+
+
+#endif /* hurdstartup.h */
diff --git a/sysdeps/i386/elf/start.S b/sysdeps/i386/elf/start.S
index 5c29ce412a..67d7916ad6 100644
--- a/sysdeps/i386/elf/start.S
+++ b/sysdeps/i386/elf/start.S
@@ -49,8 +49,8 @@ _start:
linked, this will not be set by anything to any function
pointer; hopefully it will be zero so we don't try to call
random pointers. */
- testl %edx
- jeq nofini
+ testl %edx,%edx
+ jz nofini
pushl %edx
call atexit
addl $4, %esp
@@ -84,3 +84,9 @@ nofini:
pushl %eax
call exit /* This should never return. */
hlt /* Crash if somehow it does return. */
+
+/* Define a symbol for the first piece of initialized data. */
+ .data
+ .globl __data_start
+__data_start:
+ .long 0
diff --git a/sysdeps/mach/_strerror.c b/sysdeps/mach/_strerror.c
index 398c77fbdf..eeebb9e360 100644
--- a/sysdeps/mach/_strerror.c
+++ b/sysdeps/mach/_strerror.c
@@ -16,15 +16,15 @@ License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
-#include <ansidecl.h>
#include <stdio.h>
#include <string.h>
#include <mach/error.h>
#include <errorlib.h>
+#include "../stdio/_itoa.h"
/* Return a string describing the errno code in ERRNUM. */
char *
-DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
+_strerror_internal (int errnum, char buf[1024])
{
int system;
int sub;
@@ -40,8 +40,12 @@ DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
{
- sprintf (buf, "Unknown error system %d", system);
- return buf;
+ static const char unk[] = "Error in unknown error system: ";
+ char *p = buf + sizeof buf;
+ *p-- = '\0';
+ p = _itoa (errnum, p, 16, 1);
+ p -= sizeof unk - 1;
+ return memcpy (p, unk, sizeof unk - 1);
}
es = &__mach_error_systems[system];
@@ -51,9 +55,14 @@ DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
if (code >= es->subsystem[sub].max_code)
{
- sprintf (buf, "Unknown error %d in system %d subsystem %d",
- code, system, sub);
- return buf;
+ static const char unk[] = "Unknown error ";
+ char *p = buf + sizeof buf;
+ size_t len = strlen (es->subsystem[sub].subsys_name);
+ *p-- = '\0';
+ p = _itoa (errnum, p, 16, 1);
+ *p-- = ' ';
+ p = memcpy (p - len, es->subsystem[sub].subsys_name, len);
+ return memcpy (p - sizeof unk - 1, unk, sizeof unk - 1);
}
return (char *) es->subsystem[sub].codes[code];