Displaying 1 result from an estimated 1 matches for "79c3eb88".
2015 Feb 20
3
[LLVMdev] clang .code16 with -Os producing larger code that it needs to
When experimenting with compiling GRUB2 with clang using integrated as,
I found out that it generates a 16-bit code bigger than gas counterpart
and result gets too big for size constraints of bootsector. This was
traced mainly to 2 problems.
32-bit access to 16-bit addresses.
source:
movl LOCAL(kernel_sector), %ebx
movl %ebx, 8(%si)
clang:
7cbc: 67 66 8b 1d 5c 7c 00 addr32 mov 0x7c5c,%ebx