Hi Felix, unsure if you saw that. powerpcspe is an architecture which differs slightly from powerpc and has no FPU. The fix is probably to merge GCC’s FPU emulation code (as dietlibc also uses the GPL this could work).
---------- Forwarded message ---------- From: John Paul Adrian Glaubitz <[email protected]> Message-ID: <145873929931.14974.10725083240958549148.report...@z6.physik.fu-berlin.de> Date: Wed, 23 Mar 2016 14:21:39 +0100 Subject: Bug#819069: dietlibc: FTBFS on powerpcspe due to missing FPU emulation in library Source: dietlibc Version: 0.33~cvs20120325-6 Severity: normal User: [email protected] Usertags: powerpcspe Hello! dietlibc currently fails to build from source on powerpcspe because the code is missing FPU emulation: test/select.c:12:5: warning: implicit declaration of function 'perror' [-Wimplicit-function-declaration] perror("select"); ^ ./ttt rm -f ttt bin-'ppc'/diet -v -Os gcc -nostdinc -static -o ttt debian/test/tc523086.c gcc -nostdlib -static -L/B+PKGBUILDDIRB;/bin-ppc /B+PKGBUILDDIRB;/bin-ppc/start.o -nostdinc -static -o ttt debian/test/tc523086.c -isystem /B+PKGBUILDDIRB;/include -D__dietlibc__ -Os -fomit-frame-pointer -mpowerpc-gpopt -mpowerpc-gfxopt /B+PKGBUILDDIRB;/bin-ppc/dietlibc.a -lgcc -fno-stack-protector /B+PKGBUILDDIRB;/bin-ppc/dietlibc.a(vprintf.o): In function `vprintf': vprintf.c:(.text+0x64): warning: warning: the printf functions add several kilobytes of bloat. /B+PKGBUILDDIRB;/bin-ppc/dietlibc.a(__dtostr.o): In function `__dtostr': __dtostr.c:(.text+0xc0): undefined reference to `__unorddf2' __dtostr.c:(.text+0x110): undefined reference to `__unorddf2' collect2: error: ld returned 1 exit status make: *** [build-stamp] Error 1 debian/rules:54: recipe for target 'build-stamp' failed "__unorddf2" is a function in the FPU emulation library present in glibc. In the past, the FPU emulation code was present in libgcc which is why dietlibc used to build find on powerpcspe. However, the FPU emulation code in gcc has been deprecated in favour of the code present in glibc 2.19 or newer [1] and any recent version of gcc built on a system with glibc 2.19 or newer will automatically deactivate its built-in FPU emulation code. I don't know if any FPU emulation code is actually present in dietlibc, but if there is, it should be enabled similar to what was done in glibc [2]. Cheers, Adrian > [1] https://patchwork.ozlabs.org/patch/405072/ > [2] > https://anonscm.debian.org/cgit/pkg-glibc/glibc.git/commit/?id=0d9b726ce6b29614d1ddd4e55502a9221cfb4d04 -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer - [email protected] `. `' Freie Universitaet Berlin - [email protected] `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
