On Wed, Sep 06, 2017 at 10:41:21PM -0400, Mikulas Patocka wrote: > In 32-bit mode, the x86 architecture can hold full 32-bit pointers. > Therefore, the code that copies the current address to the %ecx register > and uses %ecx-relative addressing is useless, we could just use absolute > addressing. > > The processors have a stack of return addresses for branch prediction. If > we use a call instruction and pop the return address, it desynchronizes > the return stack and causes branch prediction misses. > > This patch also moves the data to the .rodata section. > > Signed-off-by: Mikulas Patocka <mpatocka@xxxxxxxxxx> Patch applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
