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Bug
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Resolution: Fixed
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Medium
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Code Generation Tools
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CODEGEN-9834
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ARMCLANG_2.0.0.STS
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ARMCLANG_2.1.0.LTS*
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default
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use __attribute__((retain)) This does the same thing on tiarmclang.
Extract the attached zip file to an empty directory. The source file keep.c has this line ...
static const int KEEP_VAR __attribute__((used)) = 0;
Make changes to the Makefile as needed for path, or the host system, etc. Then build ...
% gmake C:\ti\compilers\ti-cgt-armllvm_1.3.0.LTS\bin\tiarmclang -O3 -mcpu=cortex-m0 -Xlinker linker.cmd main.c keep.c -o old.out C:\ti\compilers\ti-cgt-armllvm_1.3.0.LTS\bin\tiarmobjdump --syms old.out | findstr KEEP_VAR 00000064 l O .rodata 00000004 KEEP_VAR C:\ti\compilers\ti-cgt-armllvm_2.0.0.STS\bin\tiarmclang -O3 -mcpu=cortex-m0 -Xlinker linker.cmd main.c keep.c -o new.out C:\ti\compilers\ti-cgt-armllvm_2.0.0.STS\bin\tiarmobjdump --syms new.out | findstr KEEP_VAR makefile:16: recipe for target 'check_new' failed gmake: *** [check_new] Error 1
The build with version 1.3.0.LTS keeps the variable KEEP_VAR. The build with version 2.0.0.STS does not.
