How to customize the linker input object order in generated makefile

Question

Galen Johney 2019-2-15

2
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/445075-how-to-customize-the-linker-input-object-order-in-generated-makefile

I'm trying to customize the order of libraries that get linked together in a final build output, but can't seem to find any hook to do that.

I've created a Custom Toolchain, but can't find any hooks to alter the "LD" command. There does not appear to be any documentation on the "commandParameter" argument, in terms to what macros ('|>TOOL<| |>TOOL_OPTIONS<| |>OUTPUT_FLAG<||>OUTPUT<|') are possible for each tool and how to control what gets put in place of these. Also does anyone have a clue on how to influence what the contents of some of the makefile macros that get generated such as (PREBUILT_OBJS and SYSTEM_LIBS, I think that one may come from the Library configuration settings)?

Here is what I am getting for an output of the linker step:

$(LD) $(LDFLAGS) -o $(PRODUCT) $(OBJS) $(MODELREF_LIBS) $(LIBS) $(SYSTEM_LIBS) $(TOOLCHAIN_LIBS)

What I need is:

$(LD) $(LDFLAGS) -o $(PRODUCT) $(ALL_OBJS) $(MODELREF_LIBS) --start-group $(TOOLCHAIN_LIBS) --end-group $(LIBS) $(SYSTEM_LIBS)

The reason for my need is due to the fact the some of the $TOOLCHAIN_LIBS object reference objects in $(LIBS). Yes there is some unavoidable circular referencing going on in this build.

Any ideas will be appreciated.