* [crosstool-ng] [patch] glibc-2.9 patch for "undefined reference to `_begin'
@ 2009-03-27 23:17 Nye Liu
2009-03-27 23:38 ` Nye Liu
0 siblings, 1 reply; 3+ messages in thread
From: Nye Liu @ 2009-03-27 23:17 UTC (permalink / raw)
To: crossgcc, yann.morin.1998; +Cc: nyet
i have no idea why this is needed for me.
for some reason the output of
"powerpc-860-linux-gnu-gcc -nostdlib -nostartfiles -shared -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs -Wl,--verbose"
isn't doing the right thing with respect to generating the
". = 0 + SIZEOF_HEADERS;" line.
Not sure what other targets this affects.
Anybody else see this?
Index: patches/glibc/2_9/530-2.9-elf-begin.patch
===================================================================
--- patches/glibc/2_9/530-2.9-elf-begin.patch (revision 0)
+++ patches/glibc/2_9/530-2.9-elf-begin.patch (revision 0)
@@ -0,0 +1,29 @@
+[ALL ] powerpc-860-linux-gnu-gcc -nostdlib -nostartfiles -shared -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs -Wl,--verbose 2>&1 | LC_ALL=C sed -e '/^=========/,/^=========/!d;/^=========/d' -e 's/. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' > /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so.lds
+[ALL ] powerpc-860-linux-gnu-gcc -nostdlib -nostartfiles -shared -o /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/librtld.os -Wl,--version-script=/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/ld.map -Wl,-soname=ld.so.1 -T /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so.lds
+[ALL ] /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/librtld.os: In function `_dl_start_final':
+[ALL ] rtld.c:(.text+0x2fe): undefined reference to `_begin'
+[ALL ] /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/gcc-core-shared/lib/gcc/powerpc-860-linux-gnu/4.3.3/../../../../powerpc-860-linux-gnu/bin/ld: /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so: hidden symbol `_begin' isn't defined
+[ALL ] /local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/gcc-core-shared/lib/gcc/powerpc-860-linux-gnu/4.3.3/../../../../powerpc-860-linux-gnu/bin/ld: final link failed: Nonrepresentable section on output
+[ALL ] collect2: ld returned 1 exit status
+[ERROR] make[3]: *** [/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc/elf/ld.so] Error 1
+[ALL ] make[3]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/src/glibc-2.9/elf'
+[ERROR] make[2]: *** [elf/subdir_lib] Error 2
+[ALL ] make[2]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/src/glibc-2.9'
+[ERROR] make[1]: *** [all] Error 2
+[ALL ] make[1]: Leaving directory `/local/nyet-build/crosstool-ng-svn/targets/powerpc-860-linux-gnu/build/build-libc'
+[ERROR] Build failed in step 'Installing C library'
+[ERROR] Error happened in '/local/nyet-build/crosstool-ng-svn/scripts/functions' in function 'CT_DoExecLog' (line unknown, sorry)
+[ERROR] called from '/local/nyet-build/crosstool-ng-svn/scripts/build/libc/glibc.sh' at line # 504 in function 'do_libc'
+[ERROR] called from '/local/nyet-build/crosstool-ng-svn/scripts/crosstool-NG.sh' at line # 478 in function 'main'
+
+--- glibc-2.9_orig/elf/Makefile 2009-03-26 20:26:42.000000000 -0700
++++ glibc-2.9/elf/Makefile 2009-03-26 20:14:11.000000000 -0700
+@@ -304,7 +304,7 @@
+ $(LDFLAGS-rtld) -Wl,-z,defs -Wl,--verbose 2>&1 | \
+ LC_ALL=C \
+ sed -e '/^=========/,/^=========/!d;/^=========/d' \
+- -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
++ -e 's/\. = .* + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
+ > $@.lds
+ $(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
+ $(LDFLAGS-rtld) -Wl,-z,defs $(z-now-$(bind-now)) \
--
Nye Liu
nliu@mrv.com
(818) 772-6235x248
(818) 772-0576 fax
"Who would be stupid enough to quote a fictitious character?"
-- Don Quixote
--
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [crosstool-ng] [patch] glibc-2.9 patch for "undefined reference to `_begin'
2009-03-27 23:17 [crosstool-ng] [patch] glibc-2.9 patch for "undefined reference to `_begin' Nye Liu
@ 2009-03-27 23:38 ` Nye Liu
0 siblings, 0 replies; 3+ messages in thread
From: Nye Liu @ 2009-03-27 23:38 UTC (permalink / raw)
To: crossgcc, yann.morin.1998; +Cc: nyet
On Fri, Mar 27, 2009 at 04:17:46PM -0700, Nye Liu wrote:
> i have no idea why this is needed for me.
>
> for some reason the output of
>
> "powerpc-860-linux-gnu-gcc -nostdlib -nostartfiles -shared -Wl,-z,combreloc -Wl,-z,relro -Wl,--hash-style=both -Wl,-z,defs -Wl,--verbose"
>
> isn't doing the right thing with respect to generating the
> ". = 0 + SIZEOF_HEADERS;" line.
>
> Not sure what other targets this affects.
>
> Anybody else see this?
The line i see instead is:
. = SEGMENT_START("text-segment", 0) + SIZEOF_HEADERS;
I can't imagine this is 860 (or even powerpc) specific.
Probably binutils specific:
GNU ld (Linux/GNU Binutils) 2.19.51.0.2.20090204
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* Re: [crosstool-ng] [patch] glibc-2.9 patch for "undefined reference to `_begin'
@ 2009-04-22 16:23 venetis
0 siblings, 0 replies; 3+ messages in thread
From: venetis @ 2009-04-22 16:23 UTC (permalink / raw)
To: crossgcc
[-- Attachment #1: Type: text/plain, Size: 539 bytes --]
Yes, I see it on Alpha. See the Makefile changes in glibc here:
http://sourceware.org/cgi-bin/cvsweb.cgi/libc/elf/?cvsroot=glibc
If I understood correctly, this happens due to some changes in binutils
2.19.51.0.2 and later.
I created the attached patch, which is probably the same with your
solution (but the compilation stopped later with some other problem for
Alpha). I tested it with glibc-2.7, but this is probably required for all
versions of glibc (except the latest snapshots for 2.9, which already
include the change).
Ioannis
[-- Attachment #2: 300-binutils-_begin.patch --]
[-- Type: application/octet-stream, Size: 7911 bytes --]
--- glibc-2.7.OLD/elf/Makefile 2009-04-22 17:08:55.000000000 +0300
+++ glibc-2.7/elf/Makefile 2009-04-22 18:09:18.000000000 +0300
@@ -1,4 +1,4 @@
-# Copyright (C) 1995-2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+# Copyright (C) 1995-2007, 2008, 2009 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
@@ -23,7 +23,7 @@
headers = elf.h bits/elfclass.h link.h bits/link.h
routines = $(dl-routines) dl-support dl-iteratephdr \
dl-addr enbl-secure dl-profstub \
- dl-origin dl-libc dl-sym dl-tsd
+ dl-origin dl-libc dl-sym dl-tsd dl-sysdep
# The core dynamic linking functions are in libc for the static and
# profiled libraries.
@@ -33,7 +33,8 @@
execstack caller open close trampoline)
all-dl-routines = $(dl-routines) $(sysdep-dl-routines)
# But they are absent from the shared libc, because that code is in ld.so.
-elide-routines.os = $(all-dl-routines) dl-support enbl-secure dl-origin
+elide-routines.os = $(all-dl-routines) dl-support enbl-secure dl-origin \
+ dl-sysdep
shared-only-routines += dl-caller
# ld.so uses those routines, plus some special stuff for being the program
@@ -120,13 +121,6 @@
install-bin-script = ldd
endif
-ifeq (yes,$(build-static-nss))
-nssobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)nss)
-resolvobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)resolv)
-otherlibs += $(nssobjdir)/libnss_files.a $(resolvobjdir)/libnss_dns.a \
- $(resolvobjdir)/libresolv.a
-endif
-
others = sprof sln
install-bin = sprof
others-static = sln
@@ -165,14 +159,14 @@
endif
ifeq (yes,$(build-shared))
tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
- constload1 order $(tests-vis-$(have-protected)) noload filter unload \
+ constload1 order vismain noload filter unload \
reldep reldep2 reldep3 reldep4 nodelete nodelete2 \
nodlopen nodlopen2 neededtest neededtest2 \
neededtest3 neededtest4 unload2 lateglobal initfirst global \
restest2 next dblload dblunload reldep5 reldep6 reldep7 reldep8 \
circleload1 tst-tls3 tst-tls4 tst-tls5 tst-tls6 tst-tls7 tst-tls8 \
tst-tls10 tst-tls11 tst-tls12 tst-tls13 tst-tls14 tst-tls15 \
- tst-tls-dlinfo \
+ tst-tls16 tst-tls17 tst-tls18 tst-tls-dlinfo \
tst-align tst-align2 $(tests-execstack-$(have-z-execstack)) \
tst-dlmodcount tst-dlopenrpath tst-deep1 \
tst-dlmopen1 tst-dlmopen2 tst-dlmopen3 \
@@ -181,16 +175,17 @@
tst-stackguard1 tst-addr1 tst-thrlock
# reldep9
test-srcs = tst-pathopt
-tests-vis-yes = vismain
tests-execstack-yes = tst-execstack tst-execstack-needed tst-execstack-prog
endif
ifeq (yesyes,$(have-fpie)$(build-shared))
tests: $(objpfx)tst-pie1.out
endif
tests: $(objpfx)tst-leaks1-mem
+tlsmod17a-suffixes = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
+tlsmod18a-suffixes = 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
modules-names = testobj1 testobj2 testobj3 testobj4 testobj5 testobj6 \
testobj1_1 failobj constload2 constload3 unloadmod \
- dep1 dep2 dep3 dep4 $(modules-vis-$(have-protected)) \
+ dep1 dep2 dep3 dep4 vismod1 vismod2 vismod3 \
nodelmod1 nodelmod2 nodelmod3 nodelmod4 \
nodel2mod1 nodel2mod2 nodel2mod3 \
nodlopenmod nodlopenmod2 filtmod1 filtmod2 \
@@ -206,7 +201,10 @@
tst-tlsmod5 tst-tlsmod6 tst-tlsmod7 tst-tlsmod8 \
tst-tlsmod9 tst-tlsmod10 tst-tlsmod11 tst-tlsmod12 \
tst-tlsmod13 tst-tlsmod13a tst-tlsmod14a tst-tlsmod14b \
- tst-tlsmod15a tst-tlsmod15b \
+ tst-tlsmod15a tst-tlsmod15b tst-tlsmod16a tst-tlsmod16b \
+ $(patsubst %,tst-tlsmod17a%,$(tlsmod17a-suffixes)) \
+ tst-tlsmod17b \
+ $(patsubst %,tst-tlsmod18a%,$(tlsmod18a-suffixes)) \
circlemod1 circlemod1a circlemod2 circlemod2a \
circlemod3 circlemod3a \
reldep8mod1 reldep8mod2 reldep8mod3 \
@@ -226,7 +224,6 @@
ifeq (yesyes,$(have-fpie)$(build-shared))
modules-names += tst-piemod1
endif
-modules-vis-yes = vismod1 vismod2 vismod3
modules-execstack-yes = tst-execstack-mod
extra-test-objs += $(addsuffix .os,$(strip $(modules-names)))
# We need this variable to be sure the test modules get the right CPPFLAGS.
@@ -307,7 +304,7 @@
$(LDFLAGS-rtld) -Wl,-z,defs -Wl,--verbose 2>&1 | \
LC_ALL=C \
sed -e '/^=========/,/^=========/!d;/^=========/d' \
- -e 's/\. = 0 + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
+ -e 's/\. = .* + SIZEOF_HEADERS;/& _begin = . - SIZEOF_HEADERS;/' \
> $@.lds
$(LINK.o) -nostdlib -nostartfiles -shared -o $@ \
$(LDFLAGS-rtld) -Wl,-z,defs $(z-now-$(bind-now)) \
@@ -315,7 +312,7 @@
-Wl,-soname=$(rtld-installed-name) -T $@.lds
rm -f $@.lds
readelf -s $@ \
- | awk '($$7 ~ /^UND(|EF)$$/ && $$1 != "0:" && $$4 != "REGISTER") { print; p=1 } END { exit p != 0 }'
+ | $(AWK) '($$7 ~ /^UND(|EF)$$/ && $$1 != "0:" && $$4 != "REGISTER") { print; p=1 } END { exit p != 0 }'
# interp.c exists just to get this string into the libraries.
CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"' \
@@ -499,6 +496,7 @@
tst-tlsmod14a.so-no-z-defs = yes
tst-tlsmod14b.so-no-z-defs = yes
tst-tlsmod15a.so-no-z-defs = yes
+tst-tlsmod16b.so-no-z-defs = yes
circlemod2.so-no-z-defs = yes
circlemod3.so-no-z-defs = yes
circlemod3a.so-no-z-defs = yes
@@ -718,6 +716,22 @@
+$(objpfx)tst-tls16: $(libdl)
+$(objpfx)tst-tls16.out: $(objpfx)tst-tlsmod16a.so $(objpfx)tst-tlsmod16b.so
+
+$(objpfx)tst-tls17: $(libdl)
+$(objpfx)tst-tls17.out: $(objpfx)tst-tlsmod17b.so
+$(patsubst %,$(objpfx)tst-tlsmod17a%.os,$(tlsmod17a-suffixes)): $(objpfx)tst-tlsmod17a%.os : tst-tlsmod17a.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ -DN=$* -DNOT_IN_libc=1 $<
+$(patsubst %,$(objpfx)tst-tlsmod17a%.so,$(tlsmod17a-suffixes)): $(objpfx)tst-tlsmod17a%.so: $(objpfx)ld.so
+$(objpfx)tst-tlsmod17b.so: $(patsubst %,$(objpfx)tst-tlsmod17a%.so,$(tlsmod17a-suffixes))
+
+$(objpfx)tst-tls18: $(libdl)
+$(objpfx)tst-tls18.out: $(patsubst %,$(objpfx)tst-tlsmod18a%.so,$(tlsmod18a-suffixes))
+$(patsubst %,$(objpfx)tst-tlsmod18a%.os,$(tlsmod18a-suffixes)): $(objpfx)tst-tlsmod18a%.os : tst-tlsmod18a.c
+ $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ -DN=$* -DNOT_IN_libc=1 $<
+$(patsubst %,$(objpfx)tst-tlsmod18a%.so,$(tlsmod18a-suffixes)): $(objpfx)tst-tlsmod18a%.so: $(objpfx)ld.so
+
CFLAGS-tst-align.c = $(stack-align-test-flags)
CFLAGS-tst-align2.c = $(stack-align-test-flags)
CFLAGS-tst-alignmod.c = $(stack-align-test-flags)
@@ -804,7 +818,7 @@
cmp $@ tst-array5-static.exp > /dev/null
ifeq (yesyes,$(have-fpie)$(build-shared))
-CFLAGS-tst-pie1.c += -fpie
+CFLAGS-tst-pie1.c += $(pie-ccflag)
$(objpfx)tst-pie1.out: $(objpfx)tst-pie1
$(elf-objpfx)$(rtld-installed-name) \
@@ -845,10 +859,14 @@
$(objpfx)tst-dlmodcount.out: $(test-modules)
check-data := $(firstword $(wildcard \
- $(patsubst %,../scripts/data/localplt-%.data,\
- $(addsuffix -$(config-os),\
- $(config-machine) $(base-machine))\
- generic)))
+ $(foreach D,$(add-ons) scripts,\
+ $(patsubst %,$(..)$D/data/localplt-%.data,\
+ $(abi-name) \
+ $(addsuffix -$(config-os),\
+ $(config-machine) \
+ $(base-machine)) \
+ generic))))
+
tests: $(objpfx)check-localplt.out
ifeq ($(have-thread-library),yes)
@@ -857,9 +875,11 @@
$(objpfx)check-localplt.out: $(objpfx)check-localplt \
$(common-objpfx)libc.so \
- $(common-objpfx)math/libm.so $(thread-dso) \
- $(common-objpfx)rt/librt.so \
- $(common-objpfx)dlfcn/libdl.so \
+ $(common-objpfx)math/libm.so $(thread-dso) \
+ $(common-objpfx)rt/librt.so \
+ $(common-objpfx)dlfcn/libdl.so \
+ $(common-objpfx)resolv/libresolv.so \
+ $(common-objpfx)crypt/libcrypt.so \
$(check-data)
$(dir $<)$(notdir $<) $(filter-out $< $(check-data),$^) | \
LC_ALL=C sort | \
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2009-03-27 23:17 [crosstool-ng] [patch] glibc-2.9 patch for "undefined reference to `_begin' Nye Liu
2009-03-27 23:38 ` Nye Liu
2009-04-22 16:23 venetis
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