File: AddressableBits.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (51 lines) | stat: -rw-r--r-- 1,652 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
//===-- AddressableBits.cpp -----------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "lldb/Utility/AddressableBits.h"
#include "lldb/lldb-types.h"

#include <cassert>

using namespace lldb;
using namespace lldb_private;

void AddressableBits::SetAddressableBits(uint32_t addressing_bits) {
  m_low_memory_addr_bits = m_high_memory_addr_bits = addressing_bits;
}

void AddressableBits::SetAddressableBits(uint32_t lowmem_addressing_bits,
                                         uint32_t highmem_addressing_bits) {
  m_low_memory_addr_bits = lowmem_addressing_bits;
  m_high_memory_addr_bits = highmem_addressing_bits;
}

void AddressableBits::SetLowmemAddressableBits(
    uint32_t lowmem_addressing_bits) {
  m_low_memory_addr_bits = lowmem_addressing_bits;
}

uint32_t AddressableBits::GetLowmemAddressableBits() const {
  return m_low_memory_addr_bits;
}

void AddressableBits::SetHighmemAddressableBits(
    uint32_t highmem_addressing_bits) {
  m_high_memory_addr_bits = highmem_addressing_bits;
}

uint32_t AddressableBits::GetHighmemAddressableBits() const {
  return m_high_memory_addr_bits;
}

addr_t AddressableBits::AddressableBitToMask(uint32_t addressable_bits) {
  assert(addressable_bits <= sizeof(addr_t) * 8);
  if (addressable_bits == 64)
    return 0; // all bits used for addressing
  else
    return ~((1ULL << addressable_bits) - 1);
}