trisha yad <trisha1march@xxxxxxxxx> writes: > I am attaching one sample program. > > 1. arm-linux-gnueabi-gcc -fno-optimize-sibling-calls -O0 test.c > 2. arm-linux-gnueabi-gcc -fno-optimize-sibling-calls -O2 test.c > arm-linux-gnueabi-nm of O0 is log1 > arm-linux-gnueabi-nm of O2 is log > > > I am attaching o/p of command using option --save-temps i.e in file test.s > arm-linux-gnueabi-gcc -fno-optimize-sibling-calls --save-temps -O2 test.c I don't understand how the .c file you showed can produce the .s file that you showed. In the .c file, main calls ABC. In the .s file, it does not. I don't see how the optimizer could remove that call. I do see the T.12 symbol in the assembler source. However, I don't know where it came from. I don't see when I compile your C file with a recent ARM gcc. Can you explain why the T.12 symbol is a problem? Ian
