rust/tests/run-make-fulldeps/interdependent-c-libraries/Makefile

include ../tools.mk

# The rust crate foo will link to the native library foo, while the rust crate
# bar will link to the native library bar. There is also a dependency between
# the native library bar to the natibe library foo.
#
# This test ensures that the ordering of -lfoo and -lbar on the command line is
# correct to complete the linkage. If passed as "-lfoo -lbar", then the 'foo'
# library will be stripped out, and the linkage will fail.

all: $(call NATIVE_STATICLIB,foo) $(call NATIVE_STATICLIB,bar)
	$(RUSTC) foo.rs
	$(RUSTC) bar.rs
	$(RUSTC) main.rs --print link-args
Diagnose missing includes in run-make tests 2022-08-22 19:00:00 -05:00			`include ../tools.mk`
rustc: Deterministically link upstream C libraries Previously, upstream C libraries were linked in a nondeterministic fashion because they were collected through iter_crate_data() which is a nodeterministic traversal of a hash map. When upstream rlibs had interdependencies among their native libraries (such as libfoo depending on libc), then the ordering would occasionally be wrong, causing linkage to fail. This uses the topologically sorted list of libraries to collect native libraries, so if a native library depends on libc it just needs to make sure that the rust crate depends on liblibc. 2014-04-11 14:20:33 -05:00
			`# The rust crate foo will link to the native library foo, while the rust crate`
			`# bar will link to the native library bar. There is also a dependency between`
			`# the native library bar to the natibe library foo.`
			`#`
			`# This test ensures that the ordering of -lfoo and -lbar on the command line is`
			`# correct to complete the linkage. If passed as "-lfoo -lbar", then the 'foo'`
			`# library will be stripped out, and the linkage will fail.`

rmake: Get all tests passing on MSVC 2015-08-26 18:57:56 -05:00			`all: $(call NATIVE_STATICLIB,foo) $(call NATIVE_STATICLIB,bar)`
rustc: Deterministically link upstream C libraries Previously, upstream C libraries were linked in a nondeterministic fashion because they were collected through iter_crate_data() which is a nodeterministic traversal of a hash map. When upstream rlibs had interdependencies among their native libraries (such as libfoo depending on libc), then the ordering would occasionally be wrong, causing linkage to fail. This uses the topologically sorted list of libraries to collect native libraries, so if a native library depends on libc it just needs to make sure that the rust crate depends on liblibc. 2014-04-11 14:20:33 -05:00			`$(RUSTC) foo.rs`
			`$(RUSTC) bar.rs`
Stabilize -Z print-link-args as --print link-args We have stable options for adding linker arguments; we should have a stable option to help debug linker arguments. 2021-12-06 16:09:24 -06:00			`$(RUSTC) main.rs --print link-args`