[Bug ld/30938] New: [RISCV]linking erro with lp64f

[akhilesh.k at samsung dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=30938

            Bug ID: 30938
           Summary: [RISCV]linking erro with lp64f
           Product: binutils
           Version: 2.39
            Status: NEW
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: akhilesh.k at samsung dot com
  Target Milestone: ---

I am getting "can't link single-float modules with double-float modules"
linking error, while compiling below code with lp64f. 

as per risc-v spec only difference is, for lp64f ABI_FLEN=32 and for lp64d
ABI_FLEN=64. 


user@starfive:/tmp$ cat float.c 
int main() {
        float x = 1.0;  
        return 1; 
}
user@starfive:/tmp$ gcc -g -O -c float.c -mabi=lp64d
user@starfive:/tmp$ gcc -g -O -c float.c -mabi=lp64f
user@starfive:/tmp$ gcc float.c -mabi=lp64d
user@starfive:/tmp$ gcc float.c -mabi=lp64f
/usr/bin/ld: /tmp/ccbnQISS.o: can't link single-float modules with double-float
modules
/usr/bin/ld: failed to merge target specific data of file /tmp/ccbnQISS.o
collect2: error: ld returned 1 exit status
user@starfive:/tmp$ 

user@starfive:/tmp$ gcc -v 
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/riscv64-linux-gnu/12/lto-wrapper
Target: riscv64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 12.2.0-10'
--with-bugurl=file:///usr/share/doc/gcc-12/README.Bugs
--enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --prefix=/usr
--with-gcc-major-version-only --program-suffix=-12
--program-prefix=riscv64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-libitm --disable-libquadmath
--disable-libquadmath-support --enable-plugin --enable-default-pie
--with-system-zlib --enable-libphobos-checking=release
--with-target-system-zlib=auto --enable-objc-gc=auto --enable-multiarch
--disable-werror --disable-multilib --with-arch=rv64gc --with-abi=lp64d
--enable-checking=release --build=riscv64-linux-gnu --host=riscv64-linux-gnu
--target=riscv64-linux-gnu
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.2.0 (Debian 12.2.0-10) 
user@starfive:/tmp$

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