diff options
Diffstat (limited to 'pkgs/development/compilers/gcc/common/libgcc-buildstuff.nix')
| -rw-r--r-- | pkgs/development/compilers/gcc/common/libgcc-buildstuff.nix | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/pkgs/development/compilers/gcc/common/libgcc-buildstuff.nix b/pkgs/development/compilers/gcc/common/libgcc-buildstuff.nix deleted file mode 100644 index 991efc20eee5..000000000000 --- a/pkgs/development/compilers/gcc/common/libgcc-buildstuff.nix +++ /dev/null @@ -1,53 +0,0 @@ -{ lib -, stdenv -}: - -# Trick to build a gcc that is capable of emitting shared libraries *without* having the -# targetPlatform libc available beforehand. Taken from: -# https://web.archive.org/web/20170222224855/http://frank.harvard.edu/~coldwell/toolchain/ -# https://web.archive.org/web/20170224235700/http://frank.harvard.edu/~coldwell/toolchain/t-linux.diff -let - # crt{i,n}.o are the first and last (respectively) object file - # linked when producing an executable. Traditionally these - # files are delivered as part of the C library, but on GNU - # systems they are in fact built by GCC. Since libgcc needs to - # build before glibc, we can't wait for them to be copied by - # glibc. At this early pre-glibc stage these files sometimes - # have different names. - crtstuff-ofiles = - if stdenv.targetPlatform.isPower - then "ecrti.o ecrtn.o ncrti.o ncrtn.o" - else "crti.o crtn.o"; - - # Normally, `SHLIB_LC` is set to `-lc`, which means that - # `libgcc_s.so` cannot be built until `libc.so` is available. - # The assignment below clobbers this variable, removing the - # `-lc`. - # - # On PowerPC we add `-mnewlib`, which means "libc has not been - # built yet". This causes libgcc's Makefile to use the - # gcc-built `{e,n}crt{n,i}.o` instead of failing to find the - # versions which have been repackaged in libc as `crt{n,i}.o` - # - SHLIB_LC = lib.optionalString stdenv.targetPlatform.isPower "-mnewlib"; - -in -'' - echo 'libgcc.a: ${crtstuff-ofiles}' >> libgcc/Makefile.in - echo 'SHLIB_LC=${SHLIB_LC}' >> libgcc/Makefile.in -'' - - # Meanwhile, crt{i,n}.S are not present on certain platforms - # (e.g. LoongArch64), resulting in the following error: - # - # No rule to make target '../../../gcc-xx.x.x/libgcc/config/loongarch/crti.S', needed by 'crti.o'. Stop. - # - # For LoongArch64 and S390, a hacky workaround is to simply touch them, - # as the platform forces .init_array support. - # - # https://www.openwall.com/lists/musl/2022/11/09/3 - # - # 'parsed.cpu.family' won't be correct for every platform. -+ lib.optionalString (stdenv.targetPlatform.isLoongArch64 || stdenv.targetPlatform.isS390 || stdenv.targetPlatform.isAlpha) '' - touch libgcc/config/${stdenv.targetPlatform.parsed.cpu.family}/crt{i,n}.S -'' |