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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-12684
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default
This test case puts a simple function in a library, and calls it. Then it links it with a command that uses the library two times, and --scan_libraries.
C:\examples>type inlib.c
void inlib() {}
C:\examples>tiarmclang -c inlib.c
C:\examples>tiarmar -r t.lib inlib.o
tiarmar.exe: warning: creating t.lib
C:\examples>type main.c
void inlib();
int main()
{
inlib();
return 0;
}
C:\examples>tiarmclang -c main.c
C:\examples>tiarmclang -o test.out main.o t.lib t.lib -Wl,-c,--scan_libraries
warning: Symbol "TI_memcpy_small" (pulled from
"C:\ti\compilers\ti-cgt-armllvm_3.2.2.LTS\lib\armv7em-ti-none-eabihf/c/libc.
a<memcpy_t2.S.obj>") defined in 2 places:
C:\ti\compilers\ti-cgt-armllvm_3.2.2.LTS\lib\armv7em-ti-none-eabihf/c/libc.a
<memcpy_t2.S.obj>
C:\ti\compilers\ti-cgt-armllvm_3.2.2.LTS\lib\armv7em-ti-none-eabihf/c/libsys
bm.a<memcpy_t2.S.obj>
warning: Symbol "TI_memset_small" (pulled from
"C:\ti\compilers\ti-cgt-armllvm_3.2.2.LTS\lib\armv7em-ti-none-eabihf/c/libc.
a<memset_t2.S.obj>") defined in 2 places:
C:\ti\compilers\ti-cgt-armllvm_3.2.2.LTS\lib\armv7em-ti-none-eabihf/c/libc.a
<memset_t2.S.obj>
C:\ti\compilers\ti-cgt-armllvm_3.2.2.LTS\lib\armv7em-ti-none-eabihf/c/libsys
bm.a<memset_t2.S.obj>
<Many similar warnings deleted>
warning: Symbol "inlib" (pulled from "t.lib<inlib.o>") defined in 2 places:
t.lib<inlib.o>
t.lib<inlib.o>
Notice the diagnostic about the symbol inlib. It should not be emitted, because it comes from the same library.
Notice the diagnostics about symbols from the compiler RTS libraries. They should not be emitted, because the user cannot control that symbol duplication.
