[llvm-dev] How to generate .bc file using configure && make on Mac OS X? (original) (raw)

Peng Yu via llvm-dev llvm-dev at lists.llvm.org
Mon Jan 28 06:51:02 PST 2019

On Mon, Jan 28, 2019 at 8:16 AM Tim Northover <t.p.northover at gmail.com> wrote:

On Mon, 28 Jan 2019 at 14:10, Peng Yu via llvm-dev <llvm-dev at lists.llvm.org> wrote: > ld: unknown option: -plugin-opt=save-temps The macOS linker supports -save-temps directly (but not -plugin-opt). I haven't tried, but I'd guess that if you modified the -Wl part of your command line in the obvious manner it'll work.

I can run the configure using this command.

../../../extract/bash-5.0/configure CC=clang CXX=clang++ RANLIB=llvm-ranlib CFLAGS=-g\ -flto LDFLAGS=-save-temps\ -flto

But the command to generate the executable "bash" (called by make) does not produce a .bc file.

clang -L./builtins -L./lib/readline -L./lib/readline -L./lib/glob -L./lib/tilde -L./lib/sh -save-temps -flto -g -flto -Wno-parentheses -Wno-format-security -o bash shell.o eval.o y.tab.o general.o make_cmd.o print_cmd.o dispose_cmd.o execute_cmd.o variables.o copy_cmd.o error.o expr.o flags.o jobs.o subst.o hashcmd.o hashlib.o mailcheck.o trap.o input.o unwind_prot.o pathexp.o sig.o test.o version.o alias.o array.o arrayfunc.o assoc.o braces.o bracecomp.o bashhist.o bashline.o list.o stringlib.o locale.o findcmd.o redir.o pcomplete.o pcomplib.o syntax.o xmalloc.o -lbuiltins -lglob -lsh -lreadline -lhistory -ltermcap -ltilde lib/intl/libintl.a -liconv -liconv -ldl

It is just the .o files are bitcode. But bash is an executable. And there are not .bc files accompanying it.

$ file bash bash: Mach-O 64-bit executable x86_64

Using the original commands on Linux, I got the following associated files. ./configure CC=clang RANLIB=llvm-ranlib CFLAGS=-flto LDFLAGS=-Wl,-plugin-opt=save-temps\ -flto\ -fuse-ld=gold make

$ ls -gltr bash.*.bc -rw-r--r-- 1 staff 4769876 Jan 25 10:16 bash.0.0.preopt.bc -rw-r--r-- 1 staff 4769876 Jan 25 10:16 bash.0.2.internalize.bc -rw-r--r-- 1 staff 4739688 Jan 25 10:16 bash.0.4.opt.bc -rw-r--r-- 1 staff 4739688 Jan 25 10:16 bash.0.5.precodegen.bc

-- Regards, Peng

More information about the llvm-dev mailing list