Android ARM Assembly prinft

Question

... starts here                 

stmfd   sp!, {r0, r1, r2, r3, ip, lr}
bl      printf
ldmfd   sp!, {r0, r1, r2, r3, ip, lr}

... should comback here

I added this assembly code in Dalvik VM and it seems the code I added does not blow up the program. But where do I see the printf? I check DDMS and console but none of them printing out something.

Answer 1

你试过调用putchar（）在控制台上打印一些东西吗？