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a64_emit_x64: Lowercase PAGE_SIZE

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PAGE_SIZE is defined as a macro by musl.
This commit is contained in:
MerryMage 2018-09-22 18:54:49 +01:00
parent 7162f6f254
commit 238f2f2cd0
1 changed files with 8 additions and 8 deletions
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16
src/backend/x64/a64_emit_x64.cpp
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@ -707,9 +707,9 @@ void A64EmitX64::EmitA64SetExclusive(A64EmitContext& ctx, IR::Inst* inst) {
}
static Xbyak::RegExp EmitVAddrLookup(BlockOfCode& code, A64EmitContext& ctx, Xbyak::Label& abort, Xbyak::Reg64 vaddr, boost::optional<Xbyak::Reg64> arg_scratch = {}) {
constexpr size_t PAGE_BITS = 12;
constexpr size_t PAGE_SIZE = 1 << PAGE_BITS;
const size_t valid_page_index_bits = ctx.conf.page_table_address_space_bits - PAGE_BITS;
constexpr size_t page_bits = 12;
constexpr size_t page_size = 1 << page_bits;
const size_t valid_page_index_bits = ctx.conf.page_table_address_space_bits - page_bits;
const size_t unused_top_bits = 64 - ctx.conf.page_table_address_space_bits;
Xbyak::Reg64 page_table = arg_scratch.value_or_eval([&]{ return ctx.reg_alloc.ScratchGpr(); });
@ -717,18 +717,18 @@ static Xbyak::RegExp EmitVAddrLookup(BlockOfCode& code, A64EmitContext& ctx, Xby
code.mov(page_table, reinterpret_cast<u64>(ctx.conf.page_table));
code.mov(tmp, vaddr);
if (unused_top_bits == 0) {
code.shr(tmp, int(PAGE_BITS));
code.shr(tmp, int(page_bits));
} else if (ctx.conf.silently_mirror_page_table) {
if (valid_page_index_bits >= 32) {
code.shl(tmp, int(unused_top_bits));
code.shr(tmp, int(unused_top_bits + PAGE_BITS));
code.shr(tmp, int(unused_top_bits + page_bits));
} else {
code.shr(tmp, int(PAGE_BITS));
code.shr(tmp, int(page_bits));
code.and_(tmp, u32((1 << valid_page_index_bits) - 1));
}
} else {
ASSERT(valid_page_index_bits < 32);
code.shr(tmp, int(PAGE_BITS));
code.shr(tmp, int(page_bits));
code.test(tmp, u32(-(1 << valid_page_index_bits)));
code.jnz(abort, code.T_NEAR);
}
@ -736,7 +736,7 @@ static Xbyak::RegExp EmitVAddrLookup(BlockOfCode& code, A64EmitContext& ctx, Xby
code.test(page_table, page_table);
code.jz(abort, code.T_NEAR);
code.mov(tmp, vaddr);
code.and_(tmp, static_cast<u32>(PAGE_SIZE - 1));
code.and_(tmp, static_cast<u32>(page_size - 1));
return page_table + tmp;
}