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Linking to iOS fails #10384

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kud1ing opened this issue Nov 9, 2013 · 13 comments
Closed

Linking to iOS fails #10384

kud1ing opened this issue Nov 9, 2013 · 13 comments
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O-ios Operating system: iOS

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@kud1ing
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kud1ing commented Nov 9, 2013 

ld: warning: ignoring file arm-apple-darwin/rt/stage2/sync/lock_and_signal.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/sync/lock_and_signal.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/rust_builtin.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/rust_builtin.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/rust_upcall.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/rust_upcall.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/miniz.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/miniz.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/rust_android_dummy.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/rust_android_dummy.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/rust_test_helpers.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/rust_test_helpers.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/arch/arm/_context.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/arch/arm/_context.o
ld: warning: ignoring file arm-apple-darwin/rt/stage2/arch/arm/record_sp.o, file was built for arm??? which is not the architecture being linked (x86_64): arm-apple-darwin/rt/stage2/arch/arm/record_sp.o
Undefined symbols for architecture x86_64:
  "_get_time", referenced from:
     -exported_symbol[s_list] command line option
  "_precise_time_ns", referenced from:
     -exported_symbol[s_list] command line option
  "_rust_begin_unwind", referenced from:
     -exported_symbol[s_list] command line option
  "_rust_create_little_lock", referenced from:
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  "_rust_dbg_abi_1", referenced from:
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  "_rust_dbg_abi_2", referenced from:
     -exported_symbol[s_list] command line option
  "_rust_dbg_call", referenced from:
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  "_rust_dbg_do_nothing", referenced from:
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  "_rust_dbg_extern_identity_TwoDoubles", referenced from:
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  "_rust_dbg_extern_identity_TwoU16s", referenced from:
     -exported_symbol[s_list] command line option
  "_rust_dbg_extern_identity_TwoU32s", referenced from:
     -exported_symbol[s_list] command line option
  "_rust_dbg_extern_identity_TwoU64s", referenced from:
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  "_rust_dbg_extern_identity_TwoU8s", referenced from:
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  "_rust_dbg_extern_identity_double", referenced from:
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  "_rust_dbg_extern_identity_u32", referenced from:
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  "_rust_dbg_extern_identity_u64", referenced from:
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  "_rust_dbg_extern_identity_u8", referenced from:
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  "_rust_dbg_extern_return_TwoU16s", referenced from:
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  "_rust_dbg_extern_return_TwoU32s", referenced from:
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  "_rust_dbg_extern_return_TwoU64s", referenced from:
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  "_rust_dbg_extern_return_TwoU8s", referenced from:
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  "_rust_dbg_lock_create", referenced from:
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  "_rust_get_test_int", referenced from:
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  "_rust_gmtime", referenced from:
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ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [arm-apple-darwin/rt/stage2/librustrt.dylib] Error 1
@kud1ing kud1ing mentioned this issue Nov 9, 2013
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@alexcrichton
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It appears that we have compiled a bunch of arm binaries but you're expecting to link a 64-bit x86 binary. I imagine that in mk/platform.mk under CFG_GCCISH_LINK_FLAGS_arm-apple-darwin there should be some flag saying "I would like arm please".

@kud1ing
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kud1ing commented Dec 2, 2013

It's maybe -arch armv7 / -arch armv7s.

@alexcrichton
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How are you configuring rust? I couldn't even get libuv to build with an arm target.

@kud1ing
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kud1ing commented Dec 7, 2013

I did it like is described here: https://github.com/mozilla/rust/wiki/Doc-building-for-ios
This is where the build process stopped for me.

libuv was portable to iOS joyent/libuv#243 at some point in time,

@kud1ing
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kud1ing commented Dec 7, 2013

That's interesting, compilation fails in rt/arm/morestack.S now. The last change in this file was in October, while it worked for me in November. Was something regarding this enabled in the meantime?

/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:11:7: error: unknown token in expression
.align
      ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:15:1: error: unknown directive
.hidden __morestack
^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:19:2: error: unknown directive
 .type __morestack,%function
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:21:2: error: unknown directive
 .fnstart
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:23:2: error: unknown directive
 .save {r4, r5}
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:24:2: error: unknown directive
 .save {lr}
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:25:2: error: unknown directive
 .save {r6, fp, lr}
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:28:2: error: unknown directive
 .movsp r6
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:30:2: error: unknown directive
 .setfp fp, sp, #4
 ^
/Users/lenny/Github/rust_ios/src/rt/arch/arm/morestack.S:40:5: error: unknown directive
    .fnend

@adrientetar
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@kud1ing Have you tried this?

 .arm
-.align
+.align 2

 .global rust_stack_exhausted
 .global __morestack
 .hidden __morestack

@kud1ing
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kud1ing commented Jan 4, 2014

I've opened the separate #11312 for the morestack.S compilation errors.

@kud1ing
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kud1ing commented Jan 5, 2014

If i uncomment the offending assembler instructions i further down get errors like

src/libstd/libc.rs:2937:17: 2937:50 error: unresolved import: could not find `arch` in `libc::types::os`.
src/libstd/libc.rs:2937             use libc::types::os::arch::c95::c_int;
                                                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
src/libstd/libc.rs:2937:17: 2937:50 error: failed to resolve import `libc::types::os::arch::c95::c_int`
src/libstd/libc.rs:2937             use libc::types::os::arch::c95::c_int;
                                                                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Any idea about this?

@alexcrichton
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There are probably blocks in libc.rs which need to have #[cfg(target_arch = "arm")] in the target_os = "macos" sections. It'd mostly just involve filling things out here and there.

@kud1ing
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kud1ing commented Jan 6, 2014

Makes sense, thanks. I've opened the separate #11336 with a solving hint.

@adrientetar
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@kud1ing Globally speaking, this might help:
https://github.com/lht/rust/commits/ios-wip

@kud1ing
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kud1ing commented Jan 20, 2014

@adridu59: Thanks, i'll add it to the wiki page.

@kud1ing
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kud1ing commented Jun 17, 2014

Likely fixed by #14715

@kud1ing kud1ing closed this as completed Jun 17, 2014
Jarcho pushed a commit to Jarcho/rust that referenced this issue Feb 26, 2023
@bors
Auto merge of rust-lang#10386 - Jarcho:issue_10384, r=Manishearth
5166882 
Normalize projections types when checking `explicit_auto_deref`

fixes rust-lang#10384

changelog: [`explicit_auto_deref`]: Better consider projection types when checking if auto deref is applicable
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@alexcrichton @kud1ing @adrientetar