Displaying 3 results from an estimated 3 matches for "fsymbol".
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2019 Feb 27
2
[cfe-dev] RFC: Linker feature for automatically partitioning a program into multiple binaries
...be loaded if the feature partition is also
loaded. (Which is the same reason why direct pc-relative references from
the feature partition to the main partition will also work.)
I don't think any significant IR extensions are necessary here, except
perhaps for the part involving attaching the -fsymbol-partition names to
globals, but I think that part is mostly trivial and it would probably end
up looking like the custom section name field.
I'm not sure I understand how weak linkage is impacted here. With this
nothing special happens inside the linker until we start handling
--gc-sections, a...
2019 Feb 27
14
RFC: Linker feature for automatically partitioning a program into multiple binaries
...file. These slices can
also be fed to tools such as debuggers provided that the non-SHF_ALLOC
sections are left in place.
The envisaged usage of this feature is as follows:
$ clang -ffunction-sections -fdata-sections -c main.c # compile the main
program
$ clang -ffunction-sections -fdata-sections
-fsymbol-partition=libfeature.so -c feature.c # compile the feature
$ clang main.o feature.o -fuse-ld=lld -shared -o libcombined.so
-Wl,-soname,libmain.so -Wl,--gc-sections
$ llvm-objcopy libcombined.so libmain.so --extract-partition=libmain.so
$ llvm-objcopy libcombined.so libfeature.so
--extract-partition...
2019 Mar 02
2
RFC: Linker feature for automatically partitioning a program into multiple binaries
...provided that the non-SHF_ALLOC
>> sections are left in place.
>>
>> The envisaged usage of this feature is as follows:
>> $ clang -ffunction-sections -fdata-sections -c main.c # compile the main
>> program
>> $ clang -ffunction-sections -fdata-sections
>> -fsymbol-partition=libfeature.so -c feature.c # compile the feature
>> $ clang main.o feature.o -fuse-ld=lld -shared -o libcombined.so
>> -Wl,-soname,libmain.so -Wl,--gc-sections
>> $ llvm-objcopy libcombined.so libmain.so --extract-partition=libmain.so
>> $ llvm-objcopy libcombined....