genode/repos/libports/lib/mk/libunwind-rust.mk

SRC_RS = lib.rs
LIBS = libcore-rust
vpath % $(REP_DIR)/src/lib/rust/libunwind

CC_CXX_WARN_STRICT =

#
# libunwind contains the public symbol '_Unwind_Resume', which clashes with
# the symbol provided by the cxx library. The aliasing can lead to unexpected
# symbol resolutions by the dynamic linker at runtime, i.e., a C++ exception
# thrown in the libc ending up in the '_Unwind_Resume' code of libunwind-rust.
#
# This rule solves this uncertainty by making the symbol private to the
# libunwind library.
#
ifeq ($(called_from_lib_mk),yes)
$(LIB).lib.a: hide_cxx_symbols
hide_cxx_symbols: lib.o
	$(VERBOSE)cp $< $<.tmp
	$(VERBOSE)$(OBJCOPY) --localize-symbol=_Unwind_Resume $<.tmp $<
endif
Move rust support to libports Issue #1899 2016-05-12 08:26:36 +00:00			`SRC_RS = lib.rs`
Fixed linking and memory allocation for rust Now rlibs are actually linked to programs. Target files have been modified to not generate code that requires compiler-rt. Added a target for libstd-rust, but it's very broken right now. Moved alloc_system to the libports folder because either a memory allocator needs to be written in rust or posix_memalign needs to be implemented. Changed liblibc to use freebsd as the OS instead of netbsd. Added a library with unwind dummy functions. Rust relies on atomic builtins, which are not implemented in libgcc for ARM. One was implemented in rust, which was sufficient to get the current rust test to run. Rust libs were added into the group of libs for the linker so order no longer matters. The raspberry pi now uses an armv6 target. 2016-02-29 06:44:04 +00:00			`LIBS = libcore-rust`
			`vpath % $(REP_DIR)/src/lib/rust/libunwind`
Exclude higher-level repos from strict warnings This is a follow-up commit to "Increase default warning level", which overrides Genode's new default warning level for targets contained in higher-level repositories. By explicitly whitelisting all those targets, we can selectively adjust them to the new strictness over time - by looking out for 'CC_CXX_WARN_STRICT' in the target description files. Issue #465 2018-01-03 17:40:54 +00:00
			`CC_CXX_WARN_STRICT =`
rust: don't export cxx syms from libunwind-rust 2019-08-22 12:21:30 +00:00
			`#`
			`# libunwind contains the public symbol '_Unwind_Resume', which clashes with`
			`# the symbol provided by the cxx library. The aliasing can lead to unexpected`
			`# symbol resolutions by the dynamic linker at runtime, i.e., a C++ exception`
			`# thrown in the libc ending up in the '_Unwind_Resume' code of libunwind-rust.`
			`#`
			`# This rule solves this uncertainty by making the symbol private to the`
			`# libunwind library.`
			`#`
			`ifeq ($(called_from_lib_mk),yes)`
			`$(LIB).lib.a: hide_cxx_symbols`
			`hide_cxx_symbols: lib.o`
			`$(VERBOSE)cp $< $<.tmp`
			`$(VERBOSE)$(OBJCOPY) --localize-symbol=_Unwind_Resume $<.tmp $<`
			`endif`