22.8.2016, 18:38, Kai Ruottu kirjoitti:
About your problem elsewhere :
> mipsel-openwrt-linux-musl-gcc -g -Os -O2 -g -Os -DIN_GCC -W -Wall
-Wno-narrowing
> -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition
> -isystem ./include -fPIC -g -DIN_LIBGCC2 -fbuilding-libgcc
-fno-stack-protector
> -fPIC -I. -I. -I../../host-mipsel-openwrt-linux-musl/gcc
-I../.././libgcc
> -I../.././libgcc/. -I../.././libgcc/../gcc
-I../.././libgcc/../include -DHAVE_CC_TLS
> -o _m16addsf3_s.o -MT _m16addsf3_s.o -MD -MP -MF _m16addsf3_s.dep
-DSHARED -DL_m16addsf3
> -xassembler-with-cpp -c ../.././libgcc/config/mips/mips16.S
The use of stuff for 'mips16' could come from the '-elf' choice, Linux
not using these 16-bit opcodes
at all...
Seemingly I was wrong... I checked from my 'mips64el-linux-gnu'
targeted crosstoolchain (gcc-4.8.3)
and its libgcc had these objects being produced. But of course produced
with the just built GCC, not
with some earlier made GCC (your ' mipsel-openwrt-linux-musl-gcc'). The
object format in the default
libraries were like this :
File: libgcc.a(_satfractunsUTIUTA.o)
ELF Header:
Magic: 7f 45 4c 46 01 01 01 00 00 00 00 00 00 00 00 00
Class: ELF32
Data: 2's complement, little endian
Version: 1 (current)
OS/ABI: UNIX - System V
ABI Version: 0
Type: REL (Relocatable file)
Machine: MIPS R3000
Version: 0x1
Entry point address: 0x0
Start of program headers: 0 (bytes into file)
Start of section headers: 2088 (bytes into file)
Flags: 0x20000027, noreorder, pic, cpic,
abi2, mips3
Size of this header: 52 (bytes)
Size of program headers: 0 (bytes)
Number of program headers: 0
Size of section headers: 40 (bytes)
Number of section headers: 25
Section header string table index: 22
The copied glibc was probably an old Debian one (this inside the
'lib/libc.so.6') :
GNU C Library stable release version 2.7, by Roland McGrath et al.
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Compiled by GNU CC version 4.3.2.
Compiled on a Linux >>2.6.32-5-sb1-bcm91250a<< system on 2011-01-08.
Also in my gcc-5.1.0 based toolchain these things were in the same way,
the glibc
from Debian was only changed to glibc-2.13...
[root@localhost 5.1.0]# mips64el-linux-gnu-gcc-5.1 -v
Using built-in specs.
COLLECT_GCC=mips64el-linux-gnu-gcc-5.1
COLLECT_LTO_WRAPPER=/opt/cross/lib/gcc/mips64el-linux-gnu/5.1.0/lto-wrapper
Target: mips64el-linux-gnu
Configured with: ../configure --build=i686-linux-gnu
--host=i686-linux-gnu --target=mips64el-linux-gnu --prefix=/opt/cross
--with-sysroot=/opt/host-mipsel-debian7.4.0-linux
--libexecdir=/opt/cross/lib --enable-languages=c,c++,fortran
--enable-targets=all --enable-shared --enable-threads=posix
--enable-linker-build-id --enable-checking=release
--enable-libstdcxx-debug --enable-clocale=gnu --disable-nls
--without-included-gettext --enable-version-specific-runtime-libs
--disable-libssp --disable-libgomp
--with-gxx-include-dir=/opt/cross/include/c++/5.1.0
--program-prefix=mips64el-linux-gnu- --program-suffix=-5.1
Thread model: posix
gcc version 5.1.0 (GCC)
