http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53803
Bug #: 53803
Summary: --enable-target-optspace gives undefined references to
restgpr_*_x
Classification: Unclassified
Product: gcc
Version: 4.7.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: al...@gcc.gnu.org
CC: dje....@gmail.com, froy...@gcc.gnu.org,
geo...@geoffk.org
Target: powerpc
intermediate compiler (built with -Os) trying to link a userspace program gives
powerpc-oe-linux-uclibc-gcc -m32 -mhard-float -mcpu=603e
powerpc-oe-linux-uclibc/4.7.1/ld: getconf: hidden symbol `_restgpr_31_x' in
/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/lib/ppc603e-oe-linux-uclibc.gcc-cross-intermediate/gcc/powerpc-oe-linux-uclibc/4.7.1/libgcc.a(crtresxgpr.o)
is referenced by DSO
Observations:
1) libgcc_s.so is a script: "GROUP ( libgcc_s.so.1 libgcc.a )"
2) There are libcalls emitted into my libc:
$ powerpc-oe-linux-uclibc-gcc -m32 -mhard-float -mcpu=603e
--sysroot=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/qemuppc-tcbootstrap
-Wl,-EB -shared -Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,relro
-Wl,-z,now -Wl,--hash-style=gnu -Wl,-z,defs -Wl,-init,__uClibc_init
-Wl,-soname=libc.so.0 -nostdlib -o lib/libuClibc-0.9.34-git.so
-Wl,--whole-archive libc/libc_so.a -Wl,--no-whole-archive ./lib/interp.os
./lib/ld-uClibc.so.0 ./lib/uclibc_nonshared.a 2>&1 >&1 | sed -e
's/.*uClibc/OBJTREE/'
libc/libc_so.a(fnmatch.os): In function `end_pattern':
OBJTREE/libc/misc/fnmatch/fnmatch_loop.c:1014: undefined reference to
`_restgpr_27_x'
libc/libc_so.a(fnmatch.os): In function `internal_fnmatch':
OBJTREE/libc/misc/fnmatch/fnmatch_loop.c:975: undefined reference to
`_restgpr_16_x'
libc/libc_so.a(fnmatch.os): In function `ext_match':
OBJTREE/libc/misc/fnmatch/fnmatch_loop.c:1189: undefined reference to
`_restgpr_14_x'
libc/libc_so.a(regex.os): In function `postorder':
OBJTREE/libc/misc/regex/regcomp.c:1167: undefined reference to `_restgpr_28_x'
libc/libc_so.a(regex.os): In function `check_dst_limits_calc_pos_1':
OBJTREE/libc/misc/regex/regexec.c:1914: undefined reference to `_restgpr_18_x'
libc/libc_so.a(regex.os): In function `re_node_set_alloc':
OBJTREE/libc/misc/regex/regex_internal.c:885: undefined reference to
`_restgpr_29_x'
libc/libc_so.a(regex.os): In function `duplicate_tree':
OBJTREE/libc/misc/regex/regcomp.c:3779: undefined reference to `_restgpr_26_x'
libc/libc_so.a(regex.os): In function `lower_subexp':
OBJTREE/libc/misc/regex/regcomp.c:1288: undefined reference to `_restgpr_24_x'
libc/libc_so.a(regex.os): In function `free_state':
OBJTREE/libc/misc/regex/regex_internal.c:1499: undefined reference to
`_savegpr_31'
libc/libc_so.a(regex.os): In function `re_string_destruct':
OBJTREE/libc/misc/regex/regex_internal.c:828: undefined reference to
`_restgpr_31_x'
libc/libc_so.a(regex.os): In function `re_dfa_add_node':
OBJTREE/libc/misc/regex/regex_internal.c:1360: undefined reference to
`_restgpr_22_x'
libc/libc_so.a(regex.os): In function `build_wcs_buffer':
OBJTREE/libc/misc/regex/regex_internal.c:257: undefined reference to
`_restgpr_23_x'
libc/libc_so.a(regex.os): In function `build_wcs_upper_buffer':
OBJTREE/libc/misc/regex/regex_internal.c:473: undefined reference to
`_restgpr_21_x'
libc/libc_so.a(regex.os): In function `re_compile_fastmap_iter':
OBJTREE/libc/misc/regex/regcomp.c:397: undefined reference to `_restgpr_17_x'
libc/libc_so.a(regex.os): In function `re_node_set_init_union':
OBJTREE/libc/misc/regex/regex_internal.c:1096: undefined reference to
`_restgpr_25_x'
libc/libc_so.a(regex.os): In function `sift_states_backward':
OBJTREE/libc/misc/regex/regexec.c:1561: undefined reference to `_restgpr_15_x'
libc/libc_so.a(regex.os): In function `expand_bkref_cache':
OBJTREE/libc/misc/regex/regexec.c:3212: undefined reference to `_restgpr_20_x'
libc/libc_so.a(regex.os): In function `re_compile_pattern':
OBJTREE/libc/misc/regex/regcomp.c:233: undefined reference to `_restgpr_30_x'
libc/libc_so.a(wordexp.os): In function `parse_arith':
OBJTREE/libc/misc/wordexp/wordexp.c:751: undefined reference to `_restgpr_19_x'
libc/libc_so.a(_fpmaxtostr.os): In function `_fpmaxtostr':
OBJTREE/libc/stdio/_fpmaxtostr.c:189: undefined reference to `_savefpr_22'
OBJTREE/libc/stdio/_fpmaxtostr.c:265: undefined reference to `__gcc_qdiv'
OBJTREE/libc/stdio/_fpmaxtostr.c:278: undefined reference to `__gcc_qmul'
OBJTREE/libc/stdio/_fpmaxtostr.c:375: undefined reference to `__gcc_qsub'
OBJTREE/libc/stdio/_fpmaxtostr.c:376: undefined reference to `__gcc_qadd'
OBJTREE/libc/stdio/_fpmaxtostr.c:748: undefined reference to `_restfpr_22_x'
libc/libc_so.a(lldiv.os): In function `lldiv':
OBJTREE/libc/stdlib/lldiv.c:30: undefined reference to `__divdi3'
OBJTREE/libc/stdlib/lldiv.c:31: undefined reference to `__moddi3'
libc/libc_so.a(__strtofpmax.os): In function `__strtofpmax':
OBJTREE/libc/stdlib/_strtod.c:206: undefined reference to `_savefpr_28'
OBJTREE/libc/stdlib/_strtod.c:471: undefined reference to `_restfpr_28_x'
collect2: error: ld returned 1 exit status
3) to satisfy the libcalls we usually pull in those bits via -lgcc:
$ powerpc-oe-linux-uclibc-gcc -m32 -mhard-float -mcpu=603e
--sysroot=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/qemuppc-tcbootstrap
-Wl,-EB -shared -Wl,--warn-common -Wl,--warn-once -Wl,-z,combreloc -Wl,-z,relro
-Wl,-z,now -Wl,--hash-style=gnu -Wl,-z,defs -Wl,-init,__uClibc_init
-Wl,-soname=libc.so.0 -nostdlib -o lib/libuClibc-0.9.34-git.so
-Wl,--whole-archive libc/libc_so.a -Wl,--no-whole-archive ./lib/interp.os
./lib/ld-uClibc.so.0 ./lib/uclibc_nonshared.a -lgcc
$ powerpc-oe-linux-uclibc-nm lib/libuClibc-0.9.34-git.so | grep "gpr"
00012a30 t __GI_sigprocmask
0005cb8c t _restgpr_14_x
0005cb90 t _restgpr_15_x
0005cb94 t _restgpr_16_x
0005cb98 t _restgpr_17_x
0005cb9c t _restgpr_18_x
0005cba0 t _restgpr_19_x
0005cba4 t _restgpr_20_x
0005cba8 t _restgpr_21_x
0005cbac t _restgpr_22_x
0005cbb0 t _restgpr_23_x
0005cbb4 t _restgpr_24_x
0005cbb8 t _restgpr_25_x
0005cbbc t _restgpr_26_x
0005cbc0 t _restgpr_27_x
0005cbc4 t _restgpr_28_x
0005cbc8 t _restgpr_29_x
0005cbcc t _restgpr_30_x
0005cbd0 t _restgpr_31_x
0005cae8 t _savegpr_14
0005caec t _savegpr_15
0005caf0 t _savegpr_16
0005caf4 t _savegpr_17
0005caf8 t _savegpr_18
0005cafc t _savegpr_19
0005cb00 t _savegpr_20
0005cb04 t _savegpr_21
0005cb08 t _savegpr_22
0005cb0c t _savegpr_23
0005cb10 t _savegpr_24
0005cb14 t _savegpr_25
0005cb18 t _savegpr_26
0005cb1c t _savegpr_27
0005cb20 t _savegpr_28
0005cb24 t _savegpr_29
0005cb28 t _savegpr_30
0005cb2c t _savegpr_31
00012a30 T sigprocmask
This is obviously what the linker complains about above when linking a program
against that library.
Using -lgcc_s instead gives the same result.
Questions:
1) What am i doing wrong? :)
2) I could
+libc-static-y += $(ARCH_OUT)/gpr.o
+libc-nonshared-y += $(ARCH_OUT)/gpr.o
into libc which would contain
_{rest,save}gpr{0,1}_{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,all}
But that does not help me for the _x libcalls (?)
3) What about these restgpr_x calls, should those be plain _restgpr[01]_num,
i.e. AIX_ABI(?!) ?
rs6000.c rs6000_savres_routine_name()
My compiler was
Configured with:
/scratch/obj.x86_64/oe/build/tmp-uclibc/work-shared/gcc-4.7.0+svnr186651-r2/gcc-4_7-branch/configure
--build=x86_64-linux --host=x86_64-linux --target=powerpc-oe-linux-uclibc
--prefix=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr
--exec_prefix=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr
--bindir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/bin/ppc603e-oe-linux-uclibc.gcc-cross-intermediate
--sbindir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/bin/ppc603e-oe-linux-uclibc.gcc-cross-intermediate
--libexecdir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/libexec/ppc603e-oe-linux-uclibc.gcc-cross-intermediate
--datadir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/share
--sysconfdir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/etc
--sharedstatedir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/com
--localstatedir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/var
--libdir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/lib/ppc603e-oe-linux-uclibc.gcc-cross-intermediate
--includedir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/include
--oldincludedir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/include
--infodir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/share/info
--mandir=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux/usr/share/man
--disable-silent-rules --disable-dependency-tracking
--with-libtool-sysroot=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/x86_64-linux
--enable-shared --disable-multilib --disable-threads --enable-languages=c
--program-prefix=powerpc-oe-linux-uclibc-
--with-sysroot=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/qemuppc-tcbootstrap
--with-build-sysroot=/scratch/obj.x86_64/oe/build/tmp-uclibc/sysroots/qemuppc-tcbootstrap
--disable-libmudflap --disable-libgomp --disable-libquadmath --with-system-zlib
--disable-lto --disable-plugin --disable-libssp --disable-nls
--disable-decimal-float --enable-__cxa_atexit
CC'ing Nathan as per http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43810#c18
thanks in advance for any help,
