(__data_start): Define this symbol as the first thing in .data.
This commit is contained in:
Roland McGrath
parent
421f82e5cc
commit
273d56ce89
18
Makeconfig
18
Makeconfig
@ -78,11 +78,21 @@ endif
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# Get the values defined by options to `configure'.
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include $(common-objpfx)config.make
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# Run config.status to update config.make and config.h. We don't show the
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# dependence of config.h to Make, because it is only touched when it
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# changes and so config.status would be run every time; the dependence of
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# config.make should suffice to force regeneration and re-exec, and the new
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# image will notice if config.h changed.
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$(common-objpfx)config.make: $(common-objpfx)config.status
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cd $(<D); $(SHELL) $(<F)
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# Force the user to configure before making.
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$(common-objpfx)config.make:
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@echo The GNU C library has not been configured. >&2
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@echo Run \`configure\' to configure it before building. >&2
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@exit 1
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$(common-objpfx)config.status: $(..)configure
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@cd $(@D); if test -f $(@F); then exec $(SHELL) $(@F) --recheck; else \
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echo The GNU C library has not been configured. >&2; \
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echo Run \`configure\' to configure it before building. >&2; \
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echo Try \`configure --help\' for more details. >&2; \
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exit 1; fi
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# Get the user's configuration parameters.
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ifneq ($(wildcard $(..)configparms),)
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50
Makerules
50
Makerules
@ -86,9 +86,15 @@ in-Makerules := yes
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ifndef avoid-generated
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include $(+sysdir_pfx)sysd-Makefile
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$(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules
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ifneq ($(sysd-Makefile-sysdirs),$(sysdirs))
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sysd-Makefile-force = FORCE
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FORCE:
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endif
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$(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
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$(sysd-Makefile-force)
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-@rm -f $@T
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(for dir in $(sysdirs); do \
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(echo 'sysd-Makefile-sysdirs := $(sysdirs)'; \
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for dir in $(sysdirs); do \
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file=sysdeps/$$dir/Makefile; \
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if [ -f $(..)$$file ]; then \
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echo include "\$$(..)$$file"; \
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@ -192,12 +198,20 @@ endif
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# contents of sysd-rules.
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ifdef sysd-Makefile-done
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include $(+sysdir_pfx)sysd-rules
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ifneq ($(sysd-rules-sysdirs),$(sysdirs))
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# The value of $(sysdirs) the sysd-rules was computed for
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# differs from the one we are using now. So force a rebuild of sysd-rules.
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sysd-rules-force = FORCE
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FORCE:
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endif
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endif
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$(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
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$(wildcard $(foreach dir,$(sysdirs),\
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$(sysdep_dir)/$(dir)/Makefile))
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$(sysdep_dir)/$(dir)/Makefile))\
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$(sysd-rules-force)
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-@rm -f $@T
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(for sysdir in $(sysdirs); do \
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(echo 'sysd-rules-sysdirs := $(sysdirs)'; \
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for sysdir in $(sysdirs); do \
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dir="\$$(sysdep_dir)/$$sysdir"; \
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for o in $(object-suffixes); do \
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$(open-check-inhibit-asm) \
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@ -351,7 +365,7 @@ lib%.so: lib%_pic.a
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# since we define our own `.init' section specially.
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LDFLAGS-c.so = -nostdlib
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# Give libc.so an entry point and make it directly runnable itself.
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LDFLAGS-c.so += -Wl,-interp -Wl,/lib/ld.so -e __libc_print_version
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LDFLAGS-c.so += -Wl,-dynamic-linker -Wl,/lib/ld.so -e __libc_print_version
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endif
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libobjs: $(foreach o,$(object-suffixes),\
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@ -472,23 +486,33 @@ $(installed-libcs): $(libdir)/lib$(libprefix)%: libobjs subdir_install
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$(RANLIB) $@
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endif
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install-lib.so := libc.so $(filter lib%.so,$(install-lib))
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install-lib := $(filter-out lib%.so,$(install-lib))
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define do-install-program
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$(make-target-directory)
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$(INSTALL_PROGRAM) $< $@.new
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mv -f $@.new $@
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endef
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install-lib.so := libc.so $(filter %.so,$(install-lib))
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install-lib := $(filter-out %.so,$(install-lib))
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ifeq (yes,$(build-shared))
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install: $(foreach so,$(install-lib.so),\
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$(libdir)/$(so:lib%=lib$(libprefix)%).$($(so)-version))
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$(libdir)/lib$(libprefix)%.so: $(common-objpfx)lib%.so; $(do-install)
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$(libdir)/$(patsubst $(libprefix)lib%,lib$(libprefix)%,\
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$(libprefix)$(so))$($(so)-version))
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$(foreach v,$(sort $(foreach so,$(install-lib.so),.so$((so)-version))),\
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$(libdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so
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$(do-install-program)
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$(foreach v,$(sort $(foreach so,$(install-lib.so),.so$((so)-version))),\
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$(libdir)/$(libprefix)%$v): $(common-objpfx)%.so
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$(do-install-program)
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endif
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ifdef install-bin
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$(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)%
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$(make-target-directory)
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$(INSTALL_PROGRAM) $< $@
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$(do-install-program)
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endif
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ifdef install-sbin
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$(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)%
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$(make-target-directory)
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$(INSTALL_PROGRAM) $< $@
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$(do-install-program)
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endif
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ifdef install-lib
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install-lib.a := $(filter lib%.a,$(install-lib))
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34
configure
vendored
34
configure
vendored
@ -660,9 +660,9 @@ mach=
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tail=$machine
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while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
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set $m
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# If using ELF, look for an `elf' subdirectory of each machine directory.
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if test "$elf" = yes; then
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mach="$mach /$1/elf"
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# Prepend the machine's FPU directory unless --without-fp.
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if test "$with_fp" = yes; then
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mach="$mach /$1/fpu"
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fi
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mach="$mach /$1"
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tail="$2"
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@ -698,21 +698,25 @@ fi
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# We have now validated the configuration.
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# Remove the leading slashes.
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sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
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# Prepend the machine's FPU directory unless --without-fp.
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if test "$with_fp" = yes; then
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fpu_dirs=
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# If using ELF, look for an `elf' subdirectory of each machine directory.
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# We prepend these rather than inserting them whereever the machine appears
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# because things specified by the machine's ELF ABI should override
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# OS-specific things, and should always be the same for any OS on the
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# machine (otherwise what's the point of an ABI?).
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if test "$elf" = yes; then
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elf_dirs=
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for m in $mach; do
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if test -d $sysdep_dir$m/fpu; then
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fpu_dirs="$fpu_dirs $m/fpu"
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if test -d $sysdep_dir$m/elf; then
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elf_dirs="$elf_dirs $m/elf"
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fi
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done
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sysnames="`echo $fpu_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
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sysnames="`echo $elf_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
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fi
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# Remove the leading slashes.
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sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
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# Expand the list of system names into a full list of directories
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# from each element's parent name and Implies file (if present).
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@ -993,7 +997,7 @@ else
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# On the NeXT, cc -E runs the code through the compiler's parser,
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# not just through cpp.
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cat > conftest.$ac_ext <<EOF
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#line 997 "configure"
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#line 1001 "configure"
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#include "confdefs.h"
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#include <assert.h>
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Syntax Error
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@ -1007,7 +1011,7 @@ else
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rm -rf conftest*
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CPP="${CC-cc} -E -traditional-cpp"
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cat > conftest.$ac_ext <<EOF
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#line 1011 "configure"
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#line 1015 "configure"
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#include "confdefs.h"
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#include <assert.h>
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Syntax Error
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@ -1059,7 +1063,7 @@ if eval "test \"`echo '$''{'libc_cv_friendly_stddef'+set}'`\" = set"; then
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echo $ac_n "(cached) $ac_c" 1>&4
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else
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cat > conftest.$ac_ext <<EOF
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#line 1063 "configure"
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#line 1067 "configure"
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#include "confdefs.h"
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#define __need_size_t
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#define __need_wchar_t
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@ -30,6 +30,7 @@ _dl_signal_error (int errcode,
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const char *errstring)
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{
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signalled_errstring = errstring ?: "DYNAMIC LINKER BUG!!!";
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signalled_objname = objname;
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longjmp (catch_env, errcode ?: -1);
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}
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@ -33,7 +33,7 @@ dlsym (void *handle, const char *name)
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void doit (void)
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{
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const Elf32_Sym *ref = NULL;
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value = _dl_lookup_symbol (name, map->l_name, &ref, map);
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value = _dl_lookup_symbol (name, &ref, map, map->l_name);
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}
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/* Confine the symbol scope to just this map. */
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@ -545,7 +545,7 @@ typedef struct
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/* Legal values for p_type field of Elf32_Phdr. */
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#define PT_MIPS_REGINFO 0x70000000 /* Regiser usage information */
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#define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
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/* Legal values for d_tag field of Elf32_Dyn. */
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24
elf/rtld.c
24
elf/rtld.c
@ -261,3 +261,27 @@ void
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_dl_r_debug_state (void)
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{
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}
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#ifndef NDEBUG
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/* Define (weakly) our own assert failure function which doesn't use stdio.
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If we are linked into the user program (-ldl), the normal __assert_fail
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defn can override this one. */
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#include "../stdio/_itoa.h"
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void
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__assert_fail (const char *assertion,
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const char *file, unsigned int line, const char *function)
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{
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char buf[64];
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buf[sizeof buf - 1] = '\0';
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_dl_sysdep_fatal ("BUG IN DYNAMIC LINKER ld.so: ",
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file, ": ", _itoa (line, buf + sizeof buf - 1, 10, 0),
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": ", function ?: "", function ? ": " : "",
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"Assertion `", assertion, "' failed!\n");
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}
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weak_symbol (__assert_fail)
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#endif
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63
hurd/hurdstartup.h
Normal file
63
hurd/hurdstartup.h
Normal file
@ -0,0 +1,63 @@
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/* Data from initial program startup for running under the GNU Hurd.
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Copyright (C) 1995 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#ifndef _HURDSTARTUP_H
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#define _HURDSTARTUP_H 1
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/* Interesting data saved from the exec_startup reply.
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The DATA argument to *MAIN (see below) points to:
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int argc;
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char *argv[argc];
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char *argv_terminator = NULL;
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char *envp[?];
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char *envp_terminator = NULL;
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struct hurd_startup_data data;
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*/
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struct hurd_startup_data
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{
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int flags;
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mach_port_t *dtable;
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mach_msg_type_number_t dtablesize;
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mach_port_t *portarray;
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mach_msg_type_number_t portarraysize;
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int *intarray;
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mach_msg_type_number_t intarraysize;
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vm_address_t stack_base;
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vm_size_t stack_size;
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vm_address_t phdr;
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vm_size_t phdrsz;
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vm_address_t user_entry;
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};
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/* Initialize Mach RPCs; do initial handshake with the exec server (or
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extract the arguments from the stack in the case of the bootstrap task);
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finally, call *MAIN with the information gleaned. That function is not
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expected to return. ARGPTR should be the address of the first argument
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of the entry point function that is called with the stack exactly as the
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exec server or kernel sets it. */
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extern void _hurd_startup (void **argptr, void (*main) (int *data));
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#endif /* hurdstartup.h */
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@ -49,8 +49,8 @@ _start:
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linked, this will not be set by anything to any function
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pointer; hopefully it will be zero so we don't try to call
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random pointers. */
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testl %edx
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jeq nofini
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testl %edx,%edx
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jz nofini
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pushl %edx
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call atexit
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addl $4, %esp
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@ -84,3 +84,9 @@ nofini:
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pushl %eax
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call exit /* This should never return. */
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hlt /* Crash if somehow it does return. */
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/* Define a symbol for the first piece of initialized data. */
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.data
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.globl __data_start
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__data_start:
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.long 0
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@ -16,15 +16,15 @@ License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <ansidecl.h>
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#include <stdio.h>
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#include <string.h>
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#include <mach/error.h>
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#include <errorlib.h>
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#include "../stdio/_itoa.h"
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/* Return a string describing the errno code in ERRNUM. */
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char *
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DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
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_strerror_internal (int errnum, char buf[1024])
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{
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int system;
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int sub;
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@ -40,8 +40,12 @@ DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
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if (system > err_max_system || ! __mach_error_systems[system].bad_sub)
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{
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sprintf (buf, "Unknown error system %d", system);
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return buf;
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static const char unk[] = "Error in unknown error system: ";
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char *p = buf + sizeof buf;
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*p-- = '\0';
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p = _itoa (errnum, p, 16, 1);
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p -= sizeof unk - 1;
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return memcpy (p, unk, sizeof unk - 1);
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}
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es = &__mach_error_systems[system];
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@ -51,9 +55,14 @@ DEFUN(_strerror_internal, (errnum, buf), int errnum AND char buf[1024])
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if (code >= es->subsystem[sub].max_code)
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{
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sprintf (buf, "Unknown error %d in system %d subsystem %d",
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code, system, sub);
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return buf;
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static const char unk[] = "Unknown error ";
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char *p = buf + sizeof buf;
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size_t len = strlen (es->subsystem[sub].subsys_name);
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*p-- = '\0';
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p = _itoa (errnum, p, 16, 1);
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*p-- = ' ';
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p = memcpy (p - len, es->subsystem[sub].subsys_name, len);
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return memcpy (p - sizeof unk - 1, unk, sizeof unk - 1);
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}
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return (char *) es->subsystem[sub].codes[code];
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