I'm trying to make a custom target that doesn't include gcc_eh and gcc_a.
I used
rustc +nightly -Z unstable-options --target=x86_64-pc-windows-gnu --#print target-spec-json
To print it out.
I then removed libgcc_eh and libgcc_a from the JSON.
I changed "is-builtin" and made it false.
Now, I run cargo build -Z build-std -Z build-std-features --target custom_file.json, but there is something in std it isn't building and I don't know what to do.
error[E0425]: cannot find function `getsockopt` in module `net`
--> C:\Users\tpb398\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys\windows\net.rs:417:35
|
| ^^^^^^^^^^ not found in `net`
|
help: consider importing one of these items
|
3 + use crate::sys::c::getsockopt;
|
3 + use libc::getsockopt;
|
help: if you import `getsockopt`, refer to it directly
|
417 - let val: c::linger = net::getsockopt(self, c::SOL_SOCKET, c::SO_LINGER)?;
417 + let val: c::linger = getsockopt(self, c::SOL_SOCKET, c::SO_LINGER)?;
|
error[E0425]: cannot find function `setsockopt` in module `net`
--> C:\Users\tpb398\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys\windows\net.rs:423:14
|
423 | net::setsockopt(self, c::IPPROTO_TCP, c::TCP_NODELAY, nodelay as c::BOOL)
| ^^^^^^^^^^ not found in `net`
|
help: consider importing one of these items
|
3 + use crate::sys::c::setsockopt;
|
3 + use libc::setsockopt;
|
help: if you import `setsockopt`, refer to it directly
|
423 - net::setsockopt(self, c::IPPROTO_TCP, c::TCP_NODELAY, nodelay as c::BOOL)
423 + setsockopt(self, c::IPPROTO_TCP, c::TCP_NODELAY, nodelay as c::BOOL)
|
error[E0425]: cannot find function `getsockopt` in module `net`
--> C:\Users\tpb398\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys\windows\net.rs:427:33
|
427 | let raw: c::BOOL = net::getsockopt(self, c::IPPROTO_TCP, c::TCP_NODELAY)?;
| ^^^^^^^^^^ not found in `net`
|
help: consider importing one of these items
|
3 + use crate::sys::c::getsockopt;
|
3 + use libc::getsockopt;
|
help: if you import `getsockopt`, refer to it directly
|
427 - let raw: c::BOOL = net::getsockopt(self, c::IPPROTO_TCP, c::TCP_NODELAY)?;
427 + let raw: c::BOOL = getsockopt(self, c::IPPROTO_TCP, c::TCP_NODELAY)?;
|
error[E0425]: cannot find function `getsockopt` in module `net`
--> C:\Users\tpb398\.rustup\toolchains\nightly-x86_64-pc-windows-msvc\lib\rustlib\src\rust\library\std\src\sys\windows\net.rs:432:31
|
432 | let raw: c_int = net::getsockopt(self, c::SOL_SOCKET, c::SO_ERROR)?;
| ^^^^^^^^^^ not found in `net`
|
help: consider importing one of these items
|
3 + use crate::sys::c::getsockopt;
|
3 + use libc::getsockopt;
|
help: if you import `getsockopt`, refer to it directly
|
432 - let raw: c_int = net::getsockopt(self, c::SOL_SOCKET, c::SO_ERROR)?;
432 + let raw: c_int = getsockopt(self, c::SOL_SOCKET, c::SO_ERROR)?;
I have verified that the file can be read by rustc by:
rustc --print cfg --target .\custom_target_file.json
debug_assertions
overflow_checks
panic="abort"
relocation_model="pic"
target_abi=""
target_arch="x86_64"
target_endian="little"
target_env="gnu"
target_family="windows"
target_feature="fxsr"
target_feature="sse"
target_feature="sse2"
target_has_atomic
target_has_atomic="16"
target_has_atomic="32"
target_has_atomic="64"
target_has_atomic="8"
target_has_atomic="ptr"
target_has_atomic_equal_alignment="16"
target_has_atomic_equal_alignment="32"
target_has_atomic_equal_alignment="64"
target_has_atomic_equal_alignment="8"
target_has_atomic_equal_alignment="ptr"
target_has_atomic_load_store
target_has_atomic_load_store="16"
target_has_atomic_load_store="32"
target_has_atomic_load_store="64"
target_has_atomic_load_store="8"
target_has_atomic_load_store="ptr"
target_os="windows"
target_pointer_width="64"
target_vendor="pc"
windows