This patch fills holes in executable sections with 0xd4 (ARM) or
0xef (MIPS). These trap instructions were suggested by Theo de Raadt.
llvm-svn: 306322
If target of R_MIPS_GOT16 relocation is a local symbol its addend
is high 16 bits of complete addend. To calculate a final value, the addend
of this relocation is read, shifted to the left and combined with addend
of paired R_MIPS_LO16 relocation. To save updated addend when the linker
produces a relocatable output, we need to store high 16 bits of the
addend's value. It is different from the case of writing the relocation
result when the linker saves a 16-bit GOT index as-is.
llvm-svn: 295159
Rui Ueyama