powerpc64 11.0-CURRENT's clang binds -m32 -mcpu=powerpc a.out to /libexec/ld-elf.so.1

[Mark Millard]

# more main.c
int main()
{
    return 0;
}



# ls -l `which cc`
-r-xr-xr-x  7 root  wheel  54137976 Dec 14 00:06 /usr/bin/cc

# cc --version
FreeBSD clang version 3.7.0 (tags/RELEASE_370/final 246257) 20150906
Target: powerpc64-unknown-freebsd11.0
Thread model: posix

# cc -m32 -mcpu=powerpc main.c
# file a.out
a.out: ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1, FreeBSD-style, for FreeBSD 11.0 (1100091), not stripped



By contrast powerpc64-gcc binds the a.out produced to /libexec/ld-elf32.so.1 instead:

# ls -l `which gcc`
lrwxr-xr-x  1 root  wheel  48 Dec  5 05:38 /usr/bin/gcc -> /usr/local/bin/powerpc64-portbld-freebsd11.0-gcc

# gcc --version
gcc (FreeBSD Ports Collection for powerpc64) 5.2.0
Copyright (C) 2015 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.

# gcc -m32 -mcpu=powerpc main.c
# file a.out
a.out: ELF 32-bit MSB executable, PowerPC or cisco 4500, version 1 (FreeBSD), dynamically linked, interpreter /libexec/ld-elf32.so.1, FreeBSD-style, for FreeBSD 11.0 (1100091), not stripped


Context details:

# freebsd-version -ku; uname -aKU
11.0-CURRENT
11.0-CURRENT
FreeBSD FBSDG5C0 11.0-CURRENT FreeBSD 11.0-CURRENT #1 r291891M: Wed Dec  9 09:15:33 PST 2015     root at FBSDG5C0:/usr/obj/xtoolchain/powerpc.powerpc64/usr/src/sys/GENERIC64vtsc-NODEBUG  powerpc 1100091 1100091

# pkg info powerpc64-gcc
powerpc64-gcc-5.2.0_1
Name           : powerpc64-gcc
Version        : 5.2.0_1
Installed on   : Wed Dec  9 02:18:14 2015 PST
Origin         : devel/powerpc64-gcc
Architecture   : freebsd:11:powerpc:64
Prefix         : /usr/local
Categories     : devel
. . .

===
Mark Millard
markmi at dsl-only.net