[PATCH 10/27] Replace config-time define HOST_WORDS_BIGENDIAN

* [PATCH 10/27] Replace config-time define HOST_WORDS_BIGENDIAN
@ 2022-03-16  9:53 ` marcandre.lureau
  0 siblings, 0 replies; 20+ messages in thread
From: marcandre.lureau @ 2022-03-16  9:53 UTC (permalink / raw)
  To: qemu-devel
  Cc: Marc-André Lureau, Paolo Bonzini, Richard Henderson,
	Gerd Hoffmann, Peter Maydell, Michael S. Tsirkin, Pavel Pisa,
	Vikram Garhwal, Jason Wang, Dmitry Fleytman, Halil Pasic,
	Christian Borntraeger, Cornelia Huck, Thomas Huth, Eric Farman,
	David Hildenbrand, Peter Xu, Philippe Mathieu-Daudé,
	Aurelien Jarno, Alex Bennée, Eduardo Habkost,
	Marcel Apfelbaum, Yanan Wang, Laurent Vivier, Jiaxun Yang,
	Aleksandar Rikalo, Cédric Le Goater,
	Daniel Henrique Barboza, David Gibson, Greg Kurz, Palmer Dabbelt,
	Alistair Francis, Bin Meng, Mark Cave-Ayland, Artyom Tarasenko,
	Max Filippov, Huacai Chen, Coiby Xu, Stefan Hajnoczi,
	open list:Overall KVM CPUs, open list:ARM PrimeCell and...,
	open list:S390 SCLP-backed...,
	open list:PowerPC TCG CPUs, open list:RISC-V TCG CPUs,
	open list:virtio-blk

From: Marc-André Lureau <marcandre.lureau@redhat.com>

Replace a config-time define with a compile time condition
define (compatible with clang and gcc) that must be declared prior to
its usage. This avoids having a global configure time define, but also
prevents from bad usage, if the config header wasn't included before.

This can help to make some code independent from qemu too.

gcc supports __BYTE_ORDER__ from about 4.6 and clang from 3.2.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 meson.build                             |  1 -
 accel/tcg/atomic_template.h             |  4 +-
 audio/audio.h                           |  2 +-
 hw/display/pl110_template.h             |  6 +--
 hw/net/can/ctucan_core.h                |  2 +-
 hw/net/vmxnet3.h                        |  4 +-
 include/exec/cpu-all.h                  |  4 +-
 include/exec/cpu-common.h               |  2 +-
 include/exec/memop.h                    |  2 +-
 include/exec/memory.h                   |  2 +-
 include/fpu/softfloat-types.h           |  2 +-
 include/hw/core/cpu.h                   |  2 +-
 include/hw/i386/intel_iommu.h           |  6 +--
 include/hw/i386/x86-iommu.h             |  4 +-
 include/hw/virtio/virtio-access.h       |  6 +--
 include/hw/virtio/virtio-gpu-bswap.h    |  2 +-
 include/libdecnumber/dconfig.h          |  2 +-
 include/net/eth.h                       |  2 +-
 include/qemu/bswap.h                    |  8 ++--
 include/qemu/compiler.h                 |  2 +
 include/qemu/host-utils.h               |  2 +-
 include/qemu/int128.h                   |  2 +-
 include/ui/qemu-pixman.h                |  2 +-
 net/util.h                              |  2 +-
 target/arm/cpu.h                        |  8 ++--
 target/arm/translate-a64.h              |  2 +-
 target/arm/vec_internal.h               |  2 +-
 target/i386/cpu.h                       |  2 +-
 target/mips/cpu.h                       |  2 +-
 target/ppc/cpu.h                        |  2 +-
 target/s390x/tcg/vec.h                  |  2 +-
 target/xtensa/cpu.h                     |  2 +-
 tests/fp/platform.h                     |  4 +-
 accel/kvm/kvm-all.c                     |  4 +-
 audio/dbusaudio.c                       |  2 +-
 disas.c                                 |  2 +-
 hw/core/loader.c                        |  4 +-
 hw/display/artist.c                     |  6 +--
 hw/display/pxa2xx_lcd.c                 |  2 +-
 hw/display/vga.c                        | 12 +++---
 hw/display/virtio-gpu-gl.c              |  2 +-
 hw/s390x/event-facility.c               |  2 +-
 hw/virtio/vhost.c                       |  2 +-
 linux-user/arm/nwfpe/double_cpdo.c      |  4 +-
 linux-user/arm/nwfpe/fpa11_cpdt.c       |  4 +-
 linux-user/ppc/signal.c                 |  3 +-
 linux-user/syscall.c                    |  6 +--
 net/net.c                               |  4 +-
 target/alpha/translate.c                |  2 +-
 target/arm/crypto_helper.c              |  2 +-
 target/arm/helper.c                     |  2 +-
 target/arm/kvm64.c                      |  4 +-
 target/arm/neon_helper.c                |  2 +-
 target/arm/sve_helper.c                 |  4 +-
 target/arm/translate-sve.c              |  6 +--
 target/arm/translate-vfp.c              |  2 +-
 target/arm/translate.c                  |  2 +-
 target/hppa/translate.c                 |  2 +-
 target/i386/tcg/translate.c             |  2 +-
 target/mips/tcg/lmmi_helper.c           |  2 +-
 target/mips/tcg/msa_helper.c            | 54 ++++++++++++-------------
 target/ppc/arch_dump.c                  |  2 +-
 target/ppc/int_helper.c                 | 22 +++++-----
 target/ppc/kvm.c                        |  4 +-
 target/ppc/mem_helper.c                 |  2 +-
 target/riscv/vector_helper.c            |  2 +-
 target/s390x/tcg/translate.c            |  2 +-
 target/sparc/vis_helper.c               |  4 +-
 tcg/tcg-op.c                            |  4 +-
 tcg/tcg.c                               | 12 +++---
 tests/qtest/vhost-user-blk-test.c       |  2 +-
 tests/qtest/virtio-blk-test.c           |  2 +-
 ui/vdagent.c                            |  2 +-
 ui/vnc.c                                |  2 +-
 util/bitmap.c                           |  2 +-
 util/host-utils.c                       |  2 +-
 target/ppc/translate/vmx-impl.c.inc     |  4 +-
 target/ppc/translate/vsx-impl.c.inc     |  2 +-
 target/riscv/insn_trans/trans_rvv.c.inc |  4 +-
 target/s390x/tcg/translate_vx.c.inc     |  2 +-
 tcg/aarch64/tcg-target.c.inc            |  4 +-
 tcg/arm/tcg-target.c.inc                |  4 +-
 tcg/mips/tcg-target.c.inc               |  2 +-
 tcg/ppc/tcg-target.c.inc                | 10 ++---
 tcg/riscv/tcg-target.c.inc              |  4 +-
 85 files changed, 173 insertions(+), 173 deletions(-)

diff --git a/meson.build b/meson.build
index f20712cb93d7..88df1bc42973 100644
--- a/meson.build
+++ b/meson.build
@@ -1591,7 +1591,6 @@ config_host_data.set('QEMU_VERSION_MICRO', meson.project_version().split('.')[2]
 
 config_host_data.set_quoted('CONFIG_HOST_DSOSUF', host_dsosuf)
 config_host_data.set('HAVE_HOST_BLOCK_DEVICE', have_host_block_device)
-config_host_data.set('HOST_WORDS_BIGENDIAN', host_machine.endian() == 'big')
 
 have_coroutine_pool = get_option('coroutine_pool')
 if get_option('debug_stack_usage') and have_coroutine_pool
diff --git a/accel/tcg/atomic_template.h b/accel/tcg/atomic_template.h
index fc165031e868..404a530f7c2a 100644
--- a/accel/tcg/atomic_template.h
+++ b/accel/tcg/atomic_template.h
@@ -63,7 +63,7 @@
    the ATOMIC_NAME macro, and redefined below.  */
 #if DATA_SIZE == 1
 # define END
-#elif defined(HOST_WORDS_BIGENDIAN)
+#elif HOST_BIG_ENDIAN
 # define END  _be
 #else
 # define END  _le
@@ -196,7 +196,7 @@ GEN_ATOMIC_HELPER_FN(umax_fetch, MAX,  DATA_TYPE, new)
 
 /* Define reverse-host-endian atomic operations.  Note that END is used
    within the ATOMIC_NAME macro.  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define END  _le
 #else
 # define END  _be
diff --git a/audio/audio.h b/audio/audio.h
index cbb10f4816e5..3d5ecdecd5c1 100644
--- a/audio/audio.h
+++ b/audio/audio.h
@@ -32,7 +32,7 @@
 
 typedef void (*audio_callback_fn) (void *opaque, int avail);
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define AUDIO_HOST_ENDIANNESS 1
 #else
 #define AUDIO_HOST_ENDIANNESS 0
diff --git a/hw/display/pl110_template.h b/hw/display/pl110_template.h
index 877419aa817a..00877853225d 100644
--- a/hw/display/pl110_template.h
+++ b/hw/display/pl110_template.h
@@ -15,18 +15,18 @@
 
 #if ORDER == 0
 #define NAME glue(lblp_, BORDER)
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define SWAP_WORDS 1
 #endif
 #elif ORDER == 1
 #define NAME glue(bbbp_, BORDER)
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
 #define SWAP_WORDS 1
 #endif
 #else
 #define SWAP_PIXELS 1
 #define NAME glue(lbbp_, BORDER)
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define SWAP_WORDS 1
 #endif
 #endif
diff --git a/hw/net/can/ctucan_core.h b/hw/net/can/ctucan_core.h
index bbc09ae06785..608307a6310c 100644
--- a/hw/net/can/ctucan_core.h
+++ b/hw/net/can/ctucan_core.h
@@ -31,7 +31,7 @@
 #include "exec/hwaddr.h"
 #include "net/can_emu.h"
 
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
 #define __LITTLE_ENDIAN_BITFIELD 1
 #endif
 
diff --git a/hw/net/vmxnet3.h b/hw/net/vmxnet3.h
index 5b3b76ba7ad1..bf4f6de74a07 100644
--- a/hw/net/vmxnet3.h
+++ b/hw/net/vmxnet3.h
@@ -35,7 +35,7 @@
 #define __le32  uint32_t
 #define __le64  uint64_t
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define __BIG_ENDIAN_BITFIELD
 #else
 #endif
@@ -800,7 +800,7 @@ struct Vmxnet3_DriverShared {
 #undef __le16
 #undef __le32
 #undef __le64
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #undef __BIG_ENDIAN_BITFIELD
 #endif
 
diff --git a/include/exec/cpu-all.h b/include/exec/cpu-all.h
index c0f0fab28a1f..ef7d3bb76140 100644
--- a/include/exec/cpu-all.h
+++ b/include/exec/cpu-all.h
@@ -34,13 +34,13 @@
 
 /* some important defines:
  *
- * HOST_WORDS_BIGENDIAN : if defined, the host cpu is big endian and
+ * HOST_BIG_ENDIAN : whether the host cpu is big endian and
  * otherwise little endian.
  *
  * TARGET_WORDS_BIGENDIAN : same for target cpu
  */
 
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN != defined(TARGET_WORDS_BIGENDIAN)
 #define BSWAP_NEEDED
 #endif
 
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h
index 7f7b5943c7bc..e8fdb143ff2c 100644
--- a/include/exec/cpu-common.h
+++ b/include/exec/cpu-common.h
@@ -46,7 +46,7 @@ enum device_endian {
     DEVICE_LITTLE_ENDIAN,
 };
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define DEVICE_HOST_ENDIAN DEVICE_BIG_ENDIAN
 #else
 #define DEVICE_HOST_ENDIAN DEVICE_LITTLE_ENDIAN
diff --git a/include/exec/memop.h b/include/exec/memop.h
index 2a885f3917b4..44f923ed4660 100644
--- a/include/exec/memop.h
+++ b/include/exec/memop.h
@@ -28,7 +28,7 @@ typedef enum MemOp {
     MO_SIGN  = 0x08,   /* Sign-extended, otherwise zero-extended.  */
 
     MO_BSWAP = 0x10,   /* Host reverse endian.  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     MO_LE    = MO_BSWAP,
     MO_BE    = 0,
 #else
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 4d5997e6bbae..e40653f0d19e 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -2931,7 +2931,7 @@ static inline MemOp devend_memop(enum device_endian end)
     QEMU_BUILD_BUG_ON(DEVICE_HOST_ENDIAN != DEVICE_LITTLE_ENDIAN &&
                       DEVICE_HOST_ENDIAN != DEVICE_BIG_ENDIAN);
 
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN != defined(TARGET_WORDS_BIGENDIAN)
     /* Swap if non-host endianness or native (target) endianness */
     return (end == DEVICE_HOST_ENDIAN) ? 0 : MO_BSWAP;
 #else
diff --git a/include/fpu/softfloat-types.h b/include/fpu/softfloat-types.h
index 8abd9ab4ec9c..7a6ea881d83e 100644
--- a/include/fpu/softfloat-types.h
+++ b/include/fpu/softfloat-types.h
@@ -103,7 +103,7 @@ typedef struct {
 #define make_floatx80(exp, mant) ((floatx80) { mant, exp })
 #define make_floatx80_init(exp, mant) { .low = mant, .high = exp }
 typedef struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     uint64_t high, low;
 #else
     uint64_t low, high;
diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 136973655c1a..b0e2e5b9d253 100644
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -187,7 +187,7 @@ struct CPUClass {
 typedef union IcountDecr {
     uint32_t u32;
     struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         uint16_t high;
         uint16_t low;
 #else
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 3b5ac869db6e..bfa982a41957 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -145,7 +145,7 @@ enum {
 /* Interrupt Remapping Table Entry Definition */
 union VTD_IR_TableEntry {
     struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         uint32_t __reserved_1:8;     /* Reserved 1 */
         uint32_t vector:8;           /* Interrupt Vector */
         uint32_t irte_mode:1;        /* IRTE Mode */
@@ -172,7 +172,7 @@ union VTD_IR_TableEntry {
 #endif
         uint32_t dest_id;            /* Destination ID */
         uint16_t source_id;          /* Source-ID */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         uint64_t __reserved_2:44;    /* Reserved 2 */
         uint64_t sid_vtype:2;        /* Source-ID Validation Type */
         uint64_t sid_q:2;            /* Source-ID Qualifier */
@@ -191,7 +191,7 @@ union VTD_IR_TableEntry {
 /* Programming format for MSI/MSI-X addresses */
 union VTD_IR_MSIAddress {
     struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         uint32_t __head:12;          /* Should always be: 0x0fee */
         uint32_t index_l:15;         /* Interrupt index bit 14-0 */
         uint32_t int_mode:1;         /* Interrupt format */
diff --git a/include/hw/i386/x86-iommu.h b/include/hw/i386/x86-iommu.h
index 5ba0c056d60c..7637edb430a4 100644
--- a/include/hw/i386/x86-iommu.h
+++ b/include/hw/i386/x86-iommu.h
@@ -87,7 +87,7 @@ struct X86IOMMUIrq {
 struct X86IOMMU_MSIMessage {
     union {
         struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             uint32_t __addr_head:12; /* 0xfee */
             uint32_t dest:8;
             uint32_t __reserved:8;
@@ -108,7 +108,7 @@ struct X86IOMMU_MSIMessage {
     };
     union {
         struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             uint16_t trigger_mode:1;
             uint16_t level:1;
             uint16_t __resved:3;
diff --git a/include/hw/virtio/virtio-access.h b/include/hw/virtio/virtio-access.h
index 6818a23a2d35..90cbb77782b5 100644
--- a/include/hw/virtio/virtio-access.h
+++ b/include/hw/virtio/virtio-access.h
@@ -149,7 +149,7 @@ static inline uint64_t virtio_ldq_p(VirtIODevice *vdev, const void *ptr)
 
 static inline uint16_t virtio_tswap16(VirtIODevice *vdev, uint16_t s)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     return virtio_access_is_big_endian(vdev) ? s : bswap16(s);
 #else
     return virtio_access_is_big_endian(vdev) ? bswap16(s) : s;
@@ -215,7 +215,7 @@ static inline void virtio_tswap16s(VirtIODevice *vdev, uint16_t *s)
 
 static inline uint32_t virtio_tswap32(VirtIODevice *vdev, uint32_t s)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     return virtio_access_is_big_endian(vdev) ? s : bswap32(s);
 #else
     return virtio_access_is_big_endian(vdev) ? bswap32(s) : s;
@@ -229,7 +229,7 @@ static inline void virtio_tswap32s(VirtIODevice *vdev, uint32_t *s)
 
 static inline uint64_t virtio_tswap64(VirtIODevice *vdev, uint64_t s)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     return virtio_access_is_big_endian(vdev) ? s : bswap64(s);
 #else
     return virtio_access_is_big_endian(vdev) ? bswap64(s) : s;
diff --git a/include/hw/virtio/virtio-gpu-bswap.h b/include/hw/virtio/virtio-gpu-bswap.h
index 5faac0d8d5f3..912410848597 100644
--- a/include/hw/virtio/virtio-gpu-bswap.h
+++ b/include/hw/virtio/virtio-gpu-bswap.h
@@ -29,7 +29,7 @@ virtio_gpu_ctrl_hdr_bswap(struct virtio_gpu_ctrl_hdr *hdr)
 static inline void
 virtio_gpu_bswap_32(void *ptr, size_t size)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 
     size_t i;
     struct virtio_gpu_ctrl_hdr *hdr = (struct virtio_gpu_ctrl_hdr *) ptr;
diff --git a/include/libdecnumber/dconfig.h b/include/libdecnumber/dconfig.h
index 0f7dccef1f4e..2bc0ba7f1444 100644
--- a/include/libdecnumber/dconfig.h
+++ b/include/libdecnumber/dconfig.h
@@ -28,7 +28,7 @@
    02110-1301, USA.  */
 
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define WORDS_BIGENDIAN 1
 #else
 #define WORDS_BIGENDIAN 0
diff --git a/include/net/eth.h b/include/net/eth.h
index 7767ae880ecc..6e699b0d7a4a 100644
--- a/include/net/eth.h
+++ b/include/net/eth.h
@@ -159,7 +159,7 @@ struct tcp_hdr {
     u_short     th_dport;   /* destination port */
     uint32_t    th_seq;     /* sequence number */
     uint32_t    th_ack;     /* acknowledgment number */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     u_char  th_off : 4,     /* data offset */
         th_x2:4;            /* (unused) */
 #else
diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h
index 2d3bb8bbedda..9dff7c7dbbc9 100644
--- a/include/qemu/bswap.h
+++ b/include/qemu/bswap.h
@@ -84,7 +84,7 @@ static inline void bswap64s(uint64_t *s)
     *s = bswap64(*s);
 }
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define be_bswap(v, size) (v)
 #define le_bswap(v, size) glue(bswap, size)(v)
 #define be_bswaps(v, size)
@@ -188,7 +188,7 @@ CPU_CONVERT(le, 64, uint64_t)
  * a compile-time constant if you pass in a constant.  So this can be
  * used to initialize static variables.
  */
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 # define const_le32(_x)                          \
     ((((_x) & 0x000000ffU) << 24) |              \
      (((_x) & 0x0000ff00U) <<  8) |              \
@@ -211,7 +211,7 @@ typedef union {
 
 typedef union {
     float64 d;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     struct {
         uint32_t upper;
         uint32_t lower;
@@ -235,7 +235,7 @@ typedef union {
 
 typedef union {
     float128 q;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     struct {
         uint32_t upmost;
         uint32_t upper;
diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index 0a5e67fb970e..7fdd88adb368 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -7,6 +7,8 @@
 #ifndef COMPILER_H
 #define COMPILER_H
 
+#define HOST_BIG_ENDIAN (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
+
 #if defined __clang_analyzer__ || defined __COVERITY__
 #define QEMU_STATIC_ANALYSIS 1
 #endif
diff --git a/include/qemu/host-utils.h b/include/qemu/host-utils.h
index ca979dc6ccde..f19bd2910563 100644
--- a/include/qemu/host-utils.h
+++ b/include/qemu/host-utils.h
@@ -88,7 +88,7 @@ static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
     union {
         uint64_t ll;
         struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             uint32_t high, low;
 #else
             uint32_t low, high;
diff --git a/include/qemu/int128.h b/include/qemu/int128.h
index 2c4064256cdf..37e07fd6dd92 100644
--- a/include/qemu/int128.h
+++ b/include/qemu/int128.h
@@ -205,7 +205,7 @@ typedef struct Int128 Int128;
  * a union with other integer types).
  */
 struct Int128 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     int64_t hi;
     uint64_t lo;
 #else
diff --git a/include/ui/qemu-pixman.h b/include/ui/qemu-pixman.h
index 806ddcd7cdab..0c775604d173 100644
--- a/include/ui/qemu-pixman.h
+++ b/include/ui/qemu-pixman.h
@@ -19,7 +19,7 @@
  * feeding libjpeg / libpng and writing screenshots.
  */
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define PIXMAN_BE_r8g8b8     PIXMAN_r8g8b8
 # define PIXMAN_BE_x8r8g8b8   PIXMAN_x8r8g8b8
 # define PIXMAN_BE_a8r8g8b8   PIXMAN_a8r8g8b8
diff --git a/net/util.h b/net/util.h
index 358185fd5034..288312979f09 100644
--- a/net/util.h
+++ b/net/util.h
@@ -30,7 +30,7 @@
  * Structure of an internet header, naked of options.
  */
 struct ip {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     uint8_t ip_v:4,         /* version */
             ip_hl:4;        /* header length */
 #else
diff --git a/target/arm/cpu.h b/target/arm/cpu.h
index 157f214cce12..ae45fdfbb5ce 100644
--- a/target/arm/cpu.h
+++ b/target/arm/cpu.h
@@ -95,7 +95,7 @@ enum {
  * therefore useful to be able to pass TCG the offset of the least
  * significant half of a uint64_t struct member.
  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define offsetoflow32(S, M) (offsetof(S, M) + sizeof(uint32_t))
 #define offsetofhigh32(S, M) offsetof(S, M)
 #else
@@ -382,7 +382,7 @@ typedef struct CPUArchState {
         union { /* Fault address registers. */
             struct {
                 uint64_t _unused_far0;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
                 uint32_t ifar_ns;
                 uint32_t dfar_ns;
                 uint32_t ifar_s;
@@ -419,7 +419,7 @@ typedef struct CPUArchState {
         uint64_t c9_pminten; /* perf monitor interrupt enables */
         union { /* Memory attribute redirection */
             struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
                 uint64_t _unused_mair_0;
                 uint32_t mair1_ns;
                 uint32_t mair0_ns;
@@ -1092,7 +1092,7 @@ void aarch64_add_pauth_properties(Object *obj);
  */
 static inline uint64_t *sve_bswap64(uint64_t *dst, uint64_t *src, int nr)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     int i;
 
     for (i = 0; i < nr; ++i) {
diff --git a/target/arm/translate-a64.h b/target/arm/translate-a64.h
index 58f50abca469..38884158aab3 100644
--- a/target/arm/translate-a64.h
+++ b/target/arm/translate-a64.h
@@ -71,7 +71,7 @@ static inline int vec_reg_offset(DisasContext *s, int regno,
 {
     int element_size = 1 << size;
     int offs = element * element_size;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     /* This is complicated slightly because vfp.zregs[n].d[0] is
      * still the lowest and vfp.zregs[n].d[15] the highest of the
      * 256 byte vector, even on big endian systems.
diff --git a/target/arm/vec_internal.h b/target/arm/vec_internal.h
index 2a3355829068..fb43a2380e21 100644
--- a/target/arm/vec_internal.h
+++ b/target/arm/vec_internal.h
@@ -29,7 +29,7 @@
  * The H1_<N> macros are used when performing byte arithmetic and then
  * casting the final pointer to a type of size N.
  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define H1(x)   ((x) ^ 7)
 #define H1_2(x) ((x) ^ 6)
 #define H1_4(x) ((x) ^ 4)
diff --git a/target/i386/cpu.h b/target/i386/cpu.h
index 5e406088a91a..5124c1e307b5 100644
--- a/target/i386/cpu.h
+++ b/target/i386/cpu.h
@@ -1246,7 +1246,7 @@ typedef struct BNDCSReg {
 #define BNDCFG_BNDPRESERVE  2ULL
 #define BNDCFG_BDIR_MASK    TARGET_PAGE_MASK
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define ZMM_B(n) _b_ZMMReg[63 - (n)]
 #define ZMM_W(n) _w_ZMMReg[31 - (n)]
 #define ZMM_L(n) _l_ZMMReg[15 - (n)]
diff --git a/target/mips/cpu.h b/target/mips/cpu.h
index 52ce08a94d36..5335ac10a3dc 100644
--- a/target/mips/cpu.h
+++ b/target/mips/cpu.h
@@ -35,7 +35,7 @@ union fpr_t {
  *define FP_ENDIAN_IDX to access the same location
  * in the fpr_t union regardless of the host endianness
  */
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #  define FP_ENDIAN_IDX 1
 #else
 #  define FP_ENDIAN_IDX 0
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index 047b24ba50ea..627e574127ba 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -2642,7 +2642,7 @@ static inline bool lsw_reg_in_range(int start, int nregs, int rx)
 }
 
 /* Accessors for FP, VMX and VSX registers */
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VsrB(i) u8[i]
 #define VsrSB(i) s8[i]
 #define VsrH(i) u16[i]
diff --git a/target/s390x/tcg/vec.h b/target/s390x/tcg/vec.h
index a6e361869b2e..8d095efcfc6f 100644
--- a/target/s390x/tcg/vec.h
+++ b/target/s390x/tcg/vec.h
@@ -38,7 +38,7 @@ typedef union S390Vector {
  * W:  [             1][             0] - [             3][             2]
  * DW: [                             0] - [                             1]
  */
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
 #define H1(x)  ((x) ^ 7)
 #define H2(x)  ((x) ^ 3)
 #define H4(x)  ((x) ^ 1)
diff --git a/target/xtensa/cpu.h b/target/xtensa/cpu.h
index 4515f682aa26..a572e831aebf 100644
--- a/target/xtensa/cpu.h
+++ b/target/xtensa/cpu.h
@@ -494,7 +494,7 @@ typedef struct XtensaConfigList {
     struct XtensaConfigList *next;
 } XtensaConfigList;
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 enum {
     FP_F32_HIGH,
     FP_F32_LOW,
diff --git a/tests/fp/platform.h b/tests/fp/platform.h
index c20ba70baa07..6c72ad0cd05b 100644
--- a/tests/fp/platform.h
+++ b/tests/fp/platform.h
@@ -29,9 +29,9 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "config-host.h"
+#include "qemu/compiler.h"
 
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
 #define LITTLEENDIAN 1
 /* otherwise do not define it */
 #endif
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index 27864dfaeaaa..6467dd241025 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1202,8 +1202,8 @@ void kvm_hwpoison_page_add(ram_addr_t ram_addr)
 
 static uint32_t adjust_ioeventfd_endianness(uint32_t val, uint32_t size)
 {
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
-    /* The kernel expects ioeventfd values in HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN != defined(TARGET_WORDS_BIGENDIAN)
+    /* The kernel expects ioeventfd values in HOST_BIG_ENDIAN
      * endianness, but the memory core hands them in target endianness.
      * For example, PPC is always treated as big-endian even if running
      * on KVM and on PPC64LE.  Correct here.
diff --git a/audio/dbusaudio.c b/audio/dbusaudio.c
index f178b47deec1..a3d656d3b017 100644
--- a/audio/dbusaudio.c
+++ b/audio/dbusaudio.c
@@ -122,7 +122,7 @@ static size_t dbus_put_buffer_out(HWVoiceOut *hw, void *buf, size_t size)
     return size;
 }
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define AUDIO_HOST_BE TRUE
 #else
 #define AUDIO_HOST_BE FALSE
diff --git a/disas.c b/disas.c
index 3dab4482d1a1..2d2565ac5774 100644
--- a/disas.c
+++ b/disas.c
@@ -144,7 +144,7 @@ static void initialize_debug_host(CPUDebug *s)
 
     s->info.read_memory_func = host_read_memory;
     s->info.print_address_func = host_print_address;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     s->info.endian = BFD_ENDIAN_BIG;
 #else
     s->info.endian = BFD_ENDIAN_LITTLE;
diff --git a/hw/core/loader.c b/hw/core/loader.c
index ca2f2431fba7..8d9b2df6e725 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -474,7 +474,7 @@ ssize_t load_elf_ram_sym(const char *filename,
         ret = ELF_LOAD_NOT_ELF;
         goto fail;
     }
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     data_order = ELFDATA2MSB;
 #else
     data_order = ELFDATA2LSB;
@@ -511,7 +511,7 @@ ssize_t load_elf_ram_sym(const char *filename,
 
 static void bswap_uboot_header(uboot_image_header_t *hdr)
 {
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     bswap32s(&hdr->ih_magic);
     bswap32s(&hdr->ih_hcrc);
     bswap32s(&hdr->ih_time);
diff --git a/hw/display/artist.c b/hw/display/artist.c
index 1d877998b9ae..69a8f9eea8ba 100644
--- a/hw/display/artist.c
+++ b/hw/display/artist.c
@@ -26,7 +26,7 @@
 #define TYPE_ARTIST "artist"
 OBJECT_DECLARE_SIMPLE_TYPE(ARTISTState, ARTIST)
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define ROP8OFF(_i) (3 - (_i))
 #else
 #define ROP8OFF
@@ -712,7 +712,7 @@ static void combine_write_reg(hwaddr addr, uint64_t val, int size, void *out)
      * FIXME: is there a qemu helper for this?
      */
 
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     addr ^= 3;
 #endif
 
@@ -1087,7 +1087,7 @@ static uint64_t combine_read_reg(hwaddr addr, int size, void *in)
      * FIXME: is there a qemu helper for this?
      */
 
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     addr ^= 3;
 #endif
 
diff --git a/hw/display/pxa2xx_lcd.c b/hw/display/pxa2xx_lcd.c
index 2887ce496b47..6ccc1ad9d337 100644
--- a/hw/display/pxa2xx_lcd.c
+++ b/hw/display/pxa2xx_lcd.c
@@ -199,7 +199,7 @@ typedef struct QEMU_PACKED {
         SKIP_PIXEL(to);          \
     } while (0)
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define SWAP_WORDS 1
 #endif
 
diff --git a/hw/display/vga.c b/hw/display/vga.c
index 9d1f66af402e..99f88c61cbe7 100644
--- a/hw/display/vga.c
+++ b/hw/display/vga.c
@@ -94,19 +94,19 @@ const uint8_t gr_mask[16] = {
                 (((uint32_t)(__x) & (uint32_t)0x00ff0000UL) >>  8) | \
                 (((uint32_t)(__x) & (uint32_t)0xff000000UL) >> 24) ))
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define PAT(x) cbswap_32(x)
 #else
 #define PAT(x) (x)
 #endif
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define BIG 1
 #else
 #define BIG 0
 #endif
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define GET_PLANE(data, p) (((data) >> (24 - (p) * 8)) & 0xff)
 #else
 #define GET_PLANE(data, p) (((data) >> ((p) * 8)) & 0xff)
@@ -133,7 +133,7 @@ static const uint32_t mask16[16] = {
 
 #undef PAT
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define PAT(x) (x)
 #else
 #define PAT(x) cbswap_32(x)
@@ -1296,7 +1296,7 @@ static void vga_draw_text(VGACommonState *s, int full_update)
                 if (cx > cx_max)
                     cx_max = cx;
                 *ch_attr_ptr = ch_attr;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
                 ch = ch_attr >> 8;
                 cattr = ch_attr & 0xff;
 #else
@@ -1477,7 +1477,7 @@ static void vga_draw_graphic(VGACommonState *s, int full_update)
     vga_draw_line_func *vga_draw_line = NULL;
     bool share_surface, force_shadow = false;
     pixman_format_code_t format;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     bool byteswap = !s->big_endian_fb;
 #else
     bool byteswap = s->big_endian_fb;
diff --git a/hw/display/virtio-gpu-gl.c b/hw/display/virtio-gpu-gl.c
index 6cc4313b1af2..0bca8877035e 100644
--- a/hw/display/virtio-gpu-gl.c
+++ b/hw/display/virtio-gpu-gl.c
@@ -108,7 +108,7 @@ static void virtio_gpu_gl_device_realize(DeviceState *qdev, Error **errp)
 {
     VirtIOGPU *g = VIRTIO_GPU(qdev);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     error_setg(errp, "virgl is not supported on bigendian platforms");
     return;
 #endif
diff --git a/hw/s390x/event-facility.c b/hw/s390x/event-facility.c
index 6fa47b889ca4..faa51aa4c70d 100644
--- a/hw/s390x/event-facility.c
+++ b/hw/s390x/event-facility.c
@@ -28,7 +28,7 @@ typedef struct SCLPEventsBus {
 } SCLPEventsBus;
 
 /* we need to save 32 bit chunks for compatibility */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define RECV_MASK_LOWER 1
 #define RECV_MASK_UPPER 0
 #else /* little endian host */
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index b643f42ea4ec..e55ac32bf3a9 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -989,7 +989,7 @@ static inline bool vhost_needs_vring_endian(VirtIODevice *vdev)
     if (virtio_vdev_has_feature(vdev, VIRTIO_F_VERSION_1)) {
         return false;
     }
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     return vdev->device_endian == VIRTIO_DEVICE_ENDIAN_LITTLE;
 #else
     return vdev->device_endian == VIRTIO_DEVICE_ENDIAN_BIG;
diff --git a/linux-user/arm/nwfpe/double_cpdo.c b/linux-user/arm/nwfpe/double_cpdo.c
index 1cef380852c9..d45ece2e2fe7 100644
--- a/linux-user/arm/nwfpe/double_cpdo.c
+++ b/linux-user/arm/nwfpe/double_cpdo.c
@@ -150,7 +150,7 @@ unsigned int DoubleCPDO(const unsigned int opcode)
       case MNF_CODE:
       {
          unsigned int *p = (unsigned int*)&rFm;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
          p[0] ^= 0x80000000;
 #else
          p[1] ^= 0x80000000;
@@ -162,7 +162,7 @@ unsigned int DoubleCPDO(const unsigned int opcode)
       case ABS_CODE:
       {
          unsigned int *p = (unsigned int*)&rFm;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
          p[0] &= 0x7fffffff;
 #else
          p[1] &= 0x7fffffff;
diff --git a/linux-user/arm/nwfpe/fpa11_cpdt.c b/linux-user/arm/nwfpe/fpa11_cpdt.c
index c32b0c2faac0..fee525937c55 100644
--- a/linux-user/arm/nwfpe/fpa11_cpdt.c
+++ b/linux-user/arm/nwfpe/fpa11_cpdt.c
@@ -44,7 +44,7 @@ void loadDouble(const unsigned int Fn, target_ulong addr)
    unsigned int *p;
    p = (unsigned int*)&fpa11->fpreg[Fn].fDouble;
    fpa11->fType[Fn] = typeDouble;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
    /* FIXME - handle failure of get_user() */
    get_user_u32(p[0], addr); /* sign & exponent */
    get_user_u32(p[1], addr + 4);
@@ -147,7 +147,7 @@ void storeDouble(const unsigned int Fn, target_ulong addr)
       default: val = fpa11->fpreg[Fn].fDouble;
    }
    /* FIXME - handle put_user() failures */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
    put_user_u32(p[0], addr);	/* msw */
    put_user_u32(p[1], addr + 4);	/* lsw */
 #else
diff --git a/linux-user/ppc/signal.c b/linux-user/ppc/signal.c
index ec0b9c0df3da..2550b8f8c069 100644
--- a/linux-user/ppc/signal.c
+++ b/linux-user/ppc/signal.c
@@ -215,8 +215,7 @@ static target_ulong get_sigframe(struct target_sigaction *ka,
     return (oldsp - frame_size) & ~0xFUL;
 }
 
-#if ((defined(TARGET_WORDS_BIGENDIAN) && defined(HOST_WORDS_BIGENDIAN)) || \
-     (!defined(HOST_WORDS_BIGENDIAN) && !defined(TARGET_WORDS_BIGENDIAN)))
+#if defined(TARGET_WORDS_BIGENDIAN) == HOST_BIG_ENDIAN
 #define PPC_VEC_HI      0
 #define PPC_VEC_LO      1
 #else
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index b9b18a7eaffb..4de45ec6222e 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8152,7 +8152,7 @@ static int is_proc_myself(const char *filename, const char *entry)
     return 0;
 }
 
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN) || \
+#if HOST_BIG_ENDIAN != defined(TARGET_WORDS_BIGENDIAN) || \
     defined(TARGET_SPARC) || defined(TARGET_M68K) || defined(TARGET_HPPA)
 static int is_proc(const char *filename, const char *entry)
 {
@@ -8160,7 +8160,7 @@ static int is_proc(const char *filename, const char *entry)
 }
 #endif
 
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN != defined(TARGET_WORDS_BIGENDIAN)
 static int open_net_route(void *cpu_env, int fd)
 {
     FILE *fp;
@@ -8246,7 +8246,7 @@ static int do_openat(void *cpu_env, int dirfd, const char *pathname, int flags,
         { "stat", open_self_stat, is_proc_myself },
         { "auxv", open_self_auxv, is_proc_myself },
         { "cmdline", open_self_cmdline, is_proc_myself },
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN != defined(TARGET_WORDS_BIGENDIAN)
         { "/proc/net/route", open_net_route, is_proc },
 #endif
 #if defined(TARGET_SPARC) || defined(TARGET_HPPA)
diff --git a/net/net.c b/net/net.c
index f0d14dbfc1f0..9f17ab204422 100644
--- a/net/net.c
+++ b/net/net.c
@@ -524,7 +524,7 @@ void qemu_set_vnet_hdr_len(NetClientState *nc, int len)
 
 int qemu_set_vnet_le(NetClientState *nc, bool is_le)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     if (!nc || !nc->info->set_vnet_le) {
         return -ENOSYS;
     }
@@ -537,7 +537,7 @@ int qemu_set_vnet_le(NetClientState *nc, bool is_le)
 
 int qemu_set_vnet_be(NetClientState *nc, bool is_be)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     return 0;
 #else
     if (!nc || !nc->info->set_vnet_be) {
diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 66768ab47ad5..4e887311ab62 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -235,7 +235,7 @@ static TCGv dest_fpr(DisasContext *ctx, unsigned reg)
 static int get_flag_ofs(unsigned shift)
 {
     int ofs = offsetof(CPUAlphaState, flags);
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     ofs += 3 - (shift / 8);
 #else
     ofs += shift / 8;
diff --git a/target/arm/crypto_helper.c b/target/arm/crypto_helper.c
index 28a84c2dbdb6..4c8fd34aecb0 100644
--- a/target/arm/crypto_helper.c
+++ b/target/arm/crypto_helper.c
@@ -23,7 +23,7 @@ union CRYPTO_STATE {
     uint64_t   l[2];
 };
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define CR_ST_BYTE(state, i)   ((state).bytes[(15 - (i)) ^ 8])
 #define CR_ST_WORD(state, i)   ((state).words[(3 - (i)) ^ 2])
 #else
diff --git a/target/arm/helper.c b/target/arm/helper.c
index 088956eecf06..6a6eb0fc8a4c 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -8638,7 +8638,7 @@ static void add_cpreg_to_hashtable(ARMCPU *cpu, const ARMCPRegInfo *r,
                 r2->cp = 15;
             }
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             if (r2->fieldoffset) {
                 r2->fieldoffset += sizeof(uint32_t);
             }
diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index ccadfbbe72be..9ec8875150d6 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -1023,7 +1023,7 @@ static int kvm_arch_put_fpsimd(CPUState *cs)
 
     for (i = 0; i < 32; i++) {
         uint64_t *q = aa64_vfp_qreg(env, i);
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         uint64_t fp_val[2] = { q[1], q[0] };
         reg.addr = (uintptr_t)fp_val;
 #else
@@ -1242,7 +1242,7 @@ static int kvm_arch_get_fpsimd(CPUState *cs)
         if (ret) {
             return ret;
         } else {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             uint64_t t;
             t = q[0], q[0] = q[1], q[1] = t;
 #endif
diff --git a/target/arm/neon_helper.c b/target/arm/neon_helper.c
index 338b9189d5b2..bc6c4a54e9d9 100644
--- a/target/arm/neon_helper.c
+++ b/target/arm/neon_helper.c
@@ -23,7 +23,7 @@ typedef struct \
 { \
     type v1; \
 } neon_##name;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define NEON_TYPE2(name, type) \
 typedef struct \
 { \
diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c
index 07be55b7e1ad..d1ea26f1f774 100644
--- a/target/arm/sve_helper.c
+++ b/target/arm/sve_helper.c
@@ -2802,7 +2802,7 @@ static void swap_memmove(void *vd, void *vs, size_t n)
     uintptr_t o = (d | s | n) & 7;
     size_t i;
 
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     o = 0;
 #endif
     switch (o) {
@@ -2864,7 +2864,7 @@ static void swap_memzero(void *vd, size_t n)
         return;
     }
 
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     o = 0;
 #endif
     switch (o) {
diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c
index 33ca1bcfac38..72132a10323b 100644
--- a/target/arm/translate-sve.c
+++ b/target/arm/translate-sve.c
@@ -2872,7 +2872,7 @@ static TCGv_i64 load_last_active(DisasContext *s, TCGv_i32 last,
      * The final adjustment for the vector register base
      * is added via constant offset to the load.
      */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     /* Adjust for element ordering.  See vec_reg_offset.  */
     if (esz < 3) {
         tcg_gen_xori_i32(last, last, 8 - (1 << esz));
@@ -5711,7 +5711,7 @@ static void do_ldrq(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
          * for this load operation.
          */
         TCGv_i64 tmp = tcg_temp_new_i64();
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         poff += 6;
 #endif
         tcg_gen_ld16u_i64(tmp, cpu_env, poff);
@@ -5790,7 +5790,7 @@ static void do_ldro(DisasContext *s, int zt, int pg, TCGv_i64 addr, int dtype)
          * for this load operation.
          */
         TCGv_i64 tmp = tcg_temp_new_i64();
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         poff += 4;
 #endif
         tcg_gen_ld32u_i64(tmp, cpu_env, poff);
diff --git a/target/arm/translate-vfp.c b/target/arm/translate-vfp.c
index 17f796e32a33..6a95a67a69e5 100644
--- a/target/arm/translate-vfp.c
+++ b/target/arm/translate-vfp.c
@@ -93,7 +93,7 @@ uint64_t vfp_expand_imm(int size, uint8_t imm8)
 static inline long vfp_f16_offset(unsigned reg, bool top)
 {
     long offs = vfp_reg_offset(false, reg);
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     if (!top) {
         offs += 2;
     }
diff --git a/target/arm/translate.c b/target/arm/translate.c
index bf2196b9e24c..e8dfa71364db 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -1158,7 +1158,7 @@ long neon_element_offset(int reg, int element, MemOp memop)
 {
     int element_size = 1 << (memop & MO_SIZE);
     int ofs = element * element_size;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     /*
      * Calculate the offset assuming fully little-endian,
      * then XOR to account for the order of the 8-byte units.
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 5c0b1eb274aa..0b83ee4d9856 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -566,7 +566,7 @@ static void save_gpr(DisasContext *ctx, unsigned reg, TCGv_reg t)
     }
 }
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define HI_OFS  0
 # define LO_OFS  4
 #else
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 2a94d3374252..5649bba9a88d 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -359,7 +359,7 @@ static void gen_update_cc_op(DisasContext *s)
 
 #endif /* !TARGET_X86_64 */
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define REG_B_OFFSET (sizeof(target_ulong) - 1)
 #define REG_H_OFFSET (sizeof(target_ulong) - 2)
 #define REG_W_OFFSET (sizeof(target_ulong) - 2)
diff --git a/target/mips/tcg/lmmi_helper.c b/target/mips/tcg/lmmi_helper.c
index abeb7736aeb2..2c8732525ce3 100644
--- a/target/mips/tcg/lmmi_helper.c
+++ b/target/mips/tcg/lmmi_helper.c
@@ -37,7 +37,7 @@ typedef union {
 } LMIValue;
 
 /* Some byte ordering issues can be mitigated by XORing in the following.  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define BYTE_ORDER_XOR(N) N
 #else
 # define BYTE_ORDER_XOR(N) 0
diff --git a/target/mips/tcg/msa_helper.c b/target/mips/tcg/msa_helper.c
index 5667b1f0a15c..389c42e4baa3 100644
--- a/target/mips/tcg/msa_helper.c
+++ b/target/mips/tcg/msa_helper.c
@@ -4146,7 +4146,7 @@ void helper_msa_ilvev_b(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->b[8]  = pws->b[9];
     pwd->b[9]  = pwt->b[9];
     pwd->b[10] = pws->b[11];
@@ -4190,7 +4190,7 @@ void helper_msa_ilvev_h(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->h[4] = pws->h[5];
     pwd->h[5] = pwt->h[5];
     pwd->h[6] = pws->h[7];
@@ -4218,7 +4218,7 @@ void helper_msa_ilvev_w(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->w[2] = pws->w[3];
     pwd->w[3] = pwt->w[3];
     pwd->w[0] = pws->w[1];
@@ -4250,7 +4250,7 @@ void helper_msa_ilvod_b(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->b[7]  = pwt->b[6];
     pwd->b[6]  = pws->b[6];
     pwd->b[5]  = pwt->b[4];
@@ -4294,7 +4294,7 @@ void helper_msa_ilvod_h(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->h[3] = pwt->h[2];
     pwd->h[2] = pws->h[2];
     pwd->h[1] = pwt->h[0];
@@ -4322,7 +4322,7 @@ void helper_msa_ilvod_w(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->w[1] = pwt->w[0];
     pwd->w[0] = pws->w[0];
     pwd->w[3] = pwt->w[2];
@@ -4354,7 +4354,7 @@ void helper_msa_ilvl_b(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->b[7]  = pwt->b[15];
     pwd->b[6]  = pws->b[15];
     pwd->b[5]  = pwt->b[14];
@@ -4398,7 +4398,7 @@ void helper_msa_ilvl_h(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->h[3] = pwt->h[7];
     pwd->h[2] = pws->h[7];
     pwd->h[1] = pwt->h[6];
@@ -4426,7 +4426,7 @@ void helper_msa_ilvl_w(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->w[1] = pwt->w[3];
     pwd->w[0] = pws->w[3];
     pwd->w[3] = pwt->w[2];
@@ -4458,7 +4458,7 @@ void helper_msa_ilvr_b(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->b[8]  = pws->b[0];
     pwd->b[9]  = pwt->b[0];
     pwd->b[10] = pws->b[1];
@@ -4502,7 +4502,7 @@ void helper_msa_ilvr_h(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->h[4] = pws->h[0];
     pwd->h[5] = pwt->h[0];
     pwd->h[6] = pws->h[1];
@@ -4530,7 +4530,7 @@ void helper_msa_ilvr_w(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->w[2] = pws->w[0];
     pwd->w[3] = pwt->w[0];
     pwd->w[0] = pws->w[1];
@@ -4661,7 +4661,7 @@ void helper_msa_pckev_b(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->b[8]  = pws->b[9];
     pwd->b[10] = pws->b[13];
     pwd->b[12] = pws->b[1];
@@ -4705,7 +4705,7 @@ void helper_msa_pckev_h(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->h[4] = pws->h[5];
     pwd->h[6] = pws->h[1];
     pwd->h[0] = pwt->h[5];
@@ -4733,7 +4733,7 @@ void helper_msa_pckev_w(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->w[2] = pws->w[3];
     pwd->w[0] = pwt->w[3];
     pwd->w[3] = pws->w[1];
@@ -4765,7 +4765,7 @@ void helper_msa_pckod_b(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->b[7]  = pwt->b[6];
     pwd->b[5]  = pwt->b[2];
     pwd->b[3]  = pwt->b[14];
@@ -4810,7 +4810,7 @@ void helper_msa_pckod_h(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->h[3] = pwt->h[2];
     pwd->h[1] = pwt->h[6];
     pwd->h[7] = pws->h[2];
@@ -4838,7 +4838,7 @@ void helper_msa_pckod_w(CPUMIPSState *env,
     wr_t *pws = &(env->active_fpu.fpr[ws].wr);
     wr_t *pwt = &(env->active_fpu.fpr[wt].wr);
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     pwd->w[1] = pwt->w[0];
     pwd->w[3] = pws->w[0];
     pwd->w[0] = pwt->w[2];
@@ -5926,7 +5926,7 @@ void helper_msa_copy_s_b(CPUMIPSState *env, uint32_t rd,
                          uint32_t ws, uint32_t n)
 {
     n %= 16;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 8) {
         n = 8 - n - 1;
     } else {
@@ -5940,7 +5940,7 @@ void helper_msa_copy_s_h(CPUMIPSState *env, uint32_t rd,
                          uint32_t ws, uint32_t n)
 {
     n %= 8;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 4) {
         n = 4 - n - 1;
     } else {
@@ -5954,7 +5954,7 @@ void helper_msa_copy_s_w(CPUMIPSState *env, uint32_t rd,
                          uint32_t ws, uint32_t n)
 {
     n %= 4;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 2) {
         n = 2 - n - 1;
     } else {
@@ -5975,7 +5975,7 @@ void helper_msa_copy_u_b(CPUMIPSState *env, uint32_t rd,
                          uint32_t ws, uint32_t n)
 {
     n %= 16;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 8) {
         n = 8 - n - 1;
     } else {
@@ -5989,7 +5989,7 @@ void helper_msa_copy_u_h(CPUMIPSState *env, uint32_t rd,
                          uint32_t ws, uint32_t n)
 {
     n %= 8;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 4) {
         n = 4 - n - 1;
     } else {
@@ -6003,7 +6003,7 @@ void helper_msa_copy_u_w(CPUMIPSState *env, uint32_t rd,
                          uint32_t ws, uint32_t n)
 {
     n %= 4;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 2) {
         n = 2 - n - 1;
     } else {
@@ -6019,7 +6019,7 @@ void helper_msa_insert_b(CPUMIPSState *env, uint32_t wd,
     wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
     target_ulong rs = env->active_tc.gpr[rs_num];
     n %= 16;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 8) {
         n = 8 - n - 1;
     } else {
@@ -6035,7 +6035,7 @@ void helper_msa_insert_h(CPUMIPSState *env, uint32_t wd,
     wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
     target_ulong rs = env->active_tc.gpr[rs_num];
     n %= 8;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 4) {
         n = 4 - n - 1;
     } else {
@@ -6051,7 +6051,7 @@ void helper_msa_insert_w(CPUMIPSState *env, uint32_t wd,
     wr_t *pwd = &(env->active_fpu.fpr[wd].wr);
     target_ulong rs = env->active_tc.gpr[rs_num];
     n %= 4;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     if (n < 2) {
         n = 2 - n - 1;
     } else {
diff --git a/target/ppc/arch_dump.c b/target/ppc/arch_dump.c
index 993740897d83..1139cead9fed 100644
--- a/target/ppc/arch_dump.c
+++ b/target/ppc/arch_dump.c
@@ -161,7 +161,7 @@ static void ppc_write_elf_vmxregset(NoteFuncArg *arg, PowerPCCPU *cpu)
         bool needs_byteswap;
         ppc_avr_t *avr = cpu_avr_ptr(&cpu->env, i);
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         needs_byteswap = s->dump_info.d_endian == ELFDATA2LSB;
 #else
         needs_byteswap = s->dump_info.d_endian == ELFDATA2MSB;
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c
index 492f34c4992b..8c1674510bb3 100644
--- a/target/ppc/int_helper.c
+++ b/target/ppc/int_helper.c
@@ -425,7 +425,7 @@ uint64_t helper_PEXTD(uint64_t src, uint64_t mask)
 
 /*****************************************************************************/
 /* Altivec extension helpers */
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VECTOR_FOR_INORDER_I(index, element)                    \
     for (index = 0; index < ARRAY_SIZE(r->element); index++)
 #else
@@ -1177,7 +1177,7 @@ XXGENPCV(XXGENPCVDM, 8)
 #undef XXGENPCV_LE_COMP
 #undef XXGENPCV
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VBPERMQ_INDEX(avr, i) ((avr)->u8[(i)])
 #define VBPERMD_INDEX(i) (i)
 #define VBPERMQ_DW(index) (((index) & 0x40) != 0)
@@ -1298,7 +1298,7 @@ void helper_vpmsumd(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 }
 
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define PKBIG 1
 #else
 #define PKBIG 0
@@ -1307,7 +1307,7 @@ void helper_vpkpx(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int i, j;
     ppc_avr_t result;
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     const ppc_avr_t *x[2] = { a, b };
 #else
     const ppc_avr_t *x[2] = { b, a };
@@ -1516,7 +1516,7 @@ void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int sh = (b->VsrB(0xf) >> 3) & 0xf;
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     memmove(&r->u8[0], &a->u8[sh], 16 - sh);
     memset(&r->u8[16 - sh], 0, sh);
 #else
@@ -1525,7 +1525,7 @@ void helper_vslo(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 #endif
 }
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define ELEM_ADDR(VEC, IDX, SIZE) (&(VEC)->u8[IDX])
 #else
 #define ELEM_ADDR(VEC, IDX, SIZE) (&(VEC)->u8[15 - (IDX)] - (SIZE) + 1)
@@ -1554,7 +1554,7 @@ VINSX(W, uint32_t)
 VINSX(D, uint64_t)
 #undef ELEM_ADDR
 #undef VINSX
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VEXTDVLX(NAME, SIZE) \
 void helper_##NAME(CPUPPCState *env, ppc_avr_t *t, ppc_avr_t *a, ppc_avr_t *b, \
                    target_ulong index)                                         \
@@ -1593,7 +1593,7 @@ VEXTDVLX(VEXTDUHVLX, 2)
 VEXTDVLX(VEXTDUWVLX, 4)
 VEXTDVLX(VEXTDDVLX, 8)
 #undef VEXTDVLX
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define VEXTRACT(suffix, element)                                            \
     void helper_vextract##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t index) \
     {                                                                        \
@@ -1750,7 +1750,7 @@ void helper_vsro(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
 {
     int sh = (b->VsrB(0xf) >> 3) & 0xf;
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     memmove(&r->u8[sh], &a->u8[0], 16 - sh);
     memset(&r->u8[0], 0, sh);
 #else
@@ -1867,7 +1867,7 @@ void helper_vsum4ubs(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b)
     }
 }
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define UPKHI 1
 #define UPKLO 0
 #else
@@ -1974,7 +1974,7 @@ VGENERIC_DO(popcntd, u64)
 
 #undef VGENERIC_DO
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define QW_ONE { .u64 = { 0, 1 } }
 #else
 #define QW_ONE { .u64 = { 1, 0 } }
diff --git a/target/ppc/kvm.c b/target/ppc/kvm.c
index dc93b99189ea..d1f07c4f41d4 100644
--- a/target/ppc/kvm.c
+++ b/target/ppc/kvm.c
@@ -632,7 +632,7 @@ static int kvm_put_fp(CPUState *cs)
             uint64_t *fpr = cpu_fpr_ptr(&cpu->env, i);
             uint64_t *vsrl = cpu_vsrl_ptr(&cpu->env, i);
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             vsr[0] = float64_val(*fpr);
             vsr[1] = *vsrl;
 #else
@@ -710,7 +710,7 @@ static int kvm_get_fp(CPUState *cs)
                                         strerror(errno));
                 return ret;
             } else {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
                 *fpr = vsr[0];
                 if (vsx) {
                     *vsrl = vsr[1];
diff --git a/target/ppc/mem_helper.c b/target/ppc/mem_helper.c
index 39945d9ea585..f1c76a7750ab 100644
--- a/target/ppc/mem_helper.c
+++ b/target/ppc/mem_helper.c
@@ -461,7 +461,7 @@ uint32_t helper_stqcx_be_parallel(CPUPPCState *env, target_ulong addr,
 
 /*****************************************************************************/
 /* Altivec extension helpers */
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
 #define HI_IDX 0
 #define LO_IDX 1
 #else
diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c
index 3bd4aac9c970..7a6ce0a3bc7d 100644
--- a/target/riscv/vector_helper.c
+++ b/target/riscv/vector_helper.c
@@ -79,7 +79,7 @@ target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1,
  * Note that vector data is stored in host-endian 64-bit chunks,
  * so addressing units smaller than that needs a host-endian fixup.
  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define H1(x)   ((x) ^ 7)
 #define H1_2(x) ((x) ^ 6)
 #define H1_4(x) ((x) ^ 4)
diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 904b51542f7c..9299cbf34034 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -263,7 +263,7 @@ static inline int vec_reg_offset(uint8_t reg, uint8_t enr, MemOp es)
      * 16 byte operations to handle it in a special way.
      */
     g_assert(es <= MO_64);
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     offs ^= (8 - bytes);
 #endif
     return offs + vec_full_reg_offset(reg);
diff --git a/target/sparc/vis_helper.c b/target/sparc/vis_helper.c
index f917e5992dc7..3afdc6975cff 100644
--- a/target/sparc/vis_helper.c
+++ b/target/sparc/vis_helper.c
@@ -42,7 +42,7 @@ target_ulong helper_array8(target_ulong pixel_addr, target_ulong cubesize)
         GET_FIELD_SP(pixel_addr, 11, 12);
 }
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 #define VIS_B64(n) b[7 - (n)]
 #define VIS_W64(n) w[3 - (n)]
 #define VIS_SW64(n) sw[3 - (n)]
@@ -470,7 +470,7 @@ uint64_t helper_bshuffle(uint64_t gsr, uint64_t src1, uint64_t src2)
     uint32_t i, mask, host;
 
     /* Set up S such that we can index across all of the bytes.  */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     s.ll[0] = src1;
     s.ll[1] = src2;
     host = 0;
diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c
index 65e1c94c2d5c..5d48537927b5 100644
--- a/tcg/tcg-op.c
+++ b/tcg/tcg-op.c
@@ -1156,7 +1156,7 @@ void tcg_gen_ld_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
 {
     /* Since arg2 and ret have different types,
        they cannot be the same temporary */
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     tcg_gen_ld_i32(TCGV_HIGH(ret), arg2, offset);
     tcg_gen_ld_i32(TCGV_LOW(ret), arg2, offset + 4);
 #else
@@ -1167,7 +1167,7 @@ void tcg_gen_ld_i64(TCGv_i64 ret, TCGv_ptr arg2, tcg_target_long offset)
 
 void tcg_gen_st_i64(TCGv_i64 arg1, TCGv_ptr arg2, tcg_target_long offset)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     tcg_gen_st_i32(TCGV_HIGH(arg1), arg2, offset);
     tcg_gen_st_i32(TCGV_LOW(arg1), arg2, offset + 4);
 #else
diff --git a/tcg/tcg.c b/tcg/tcg.c
index 33a97eabdb83..f8542529d030 100644
--- a/tcg/tcg.c
+++ b/tcg/tcg.c
@@ -51,7 +51,7 @@
 #else
 # define ELF_CLASS  ELFCLASS64
 #endif
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define ELF_DATA   ELFDATA2MSB
 #else
 # define ELF_DATA   ELFDATA2LSB
@@ -883,7 +883,7 @@ TCGTemp *tcg_global_mem_new_internal(TCGType type, TCGv_ptr base,
     TCGTemp *base_ts = tcgv_ptr_temp(base);
     TCGTemp *ts = tcg_global_alloc(s);
     int indirect_reg = 0, bigendian = 0;
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     bigendian = 1;
 #endif
 
@@ -1547,7 +1547,7 @@ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args)
         }
 #else
         if (TCG_TARGET_REG_BITS < 64 && (typemask & 6) == dh_typecode_i64) {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             op->args[pi++] = temp_arg(ret + 1);
             op->args[pi++] = temp_arg(ret);
 #else
@@ -1600,7 +1600,7 @@ void tcg_gen_callN(void *func, TCGTemp *ret, int nargs, TCGTemp **args)
              * have to get more complicated to differentiate between
              * stack arguments and register arguments.
              */
-#if defined(HOST_WORDS_BIGENDIAN) != defined(TCG_TARGET_STACK_GROWSUP)
+#if HOST_BIG_ENDIAN != defined(TCG_TARGET_STACK_GROWSUP)
             op->args[pi++] = temp_arg(args[i] + 1);
             op->args[pi++] = temp_arg(args[i]);
 #else
@@ -3598,7 +3598,7 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp *op)
         /* fall through */
 
     case TEMP_VAL_MEM:
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         endian_fixup = itype == TCG_TYPE_I32 ? 4 : 8;
         endian_fixup -= 1 << vece;
 #else
@@ -3879,7 +3879,7 @@ static bool tcg_reg_alloc_dup2(TCGContext *s, const TCGOp *op)
         if (!itsh->mem_coherent) {
             temp_sync(s, itsh, s->reserved_regs, 0, 0);
         }
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         TCGTemp *its = itsh;
 #else
         TCGTemp *its = itsl;
diff --git a/tests/qtest/vhost-user-blk-test.c b/tests/qtest/vhost-user-blk-test.c
index 62e670f39be0..659b5050d8af 100644
--- a/tests/qtest/vhost-user-blk-test.c
+++ b/tests/qtest/vhost-user-blk-test.c
@@ -37,7 +37,7 @@ typedef struct QVirtioBlkReq {
     uint8_t status;
 } QVirtioBlkReq;
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 static const bool host_is_big_endian = true;
 #else
 static const bool host_is_big_endian; /* false */
diff --git a/tests/qtest/virtio-blk-test.c b/tests/qtest/virtio-blk-test.c
index 2a236982118f..f22594a1a823 100644
--- a/tests/qtest/virtio-blk-test.c
+++ b/tests/qtest/virtio-blk-test.c
@@ -33,7 +33,7 @@ typedef struct QVirtioBlkReq {
 } QVirtioBlkReq;
 
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 const bool host_is_big_endian = true;
 #else
 const bool host_is_big_endian; /* false */
diff --git a/ui/vdagent.c b/ui/vdagent.c
index 7ea4bc5d9a26..02861edfb13c 100644
--- a/ui/vdagent.c
+++ b/ui/vdagent.c
@@ -664,7 +664,7 @@ static void vdagent_chr_open(Chardev *chr,
     VDAgentChardev *vd = QEMU_VDAGENT_CHARDEV(chr);
     ChardevQemuVDAgent *cfg = backend->u.qemu_vdagent.data;
 
-#if defined(HOST_WORDS_BIGENDIAN)
+#if HOST_BIG_ENDIAN
     /*
      * TODO: vdagent protocol is defined to be LE,
      * so we have to byteswap everything on BE hosts.
diff --git a/ui/vnc.c b/ui/vnc.c
index 3ccd33dedcc8..2448384d4e64 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -2340,7 +2340,7 @@ static void pixel_format_message (VncState *vs) {
     vnc_write_u8(vs, vs->client_pf.bits_per_pixel); /* bits-per-pixel */
     vnc_write_u8(vs, vs->client_pf.depth); /* depth */
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     vnc_write_u8(vs, 1);             /* big-endian-flag */
 #else
     vnc_write_u8(vs, 0);             /* big-endian-flag */
diff --git a/util/bitmap.c b/util/bitmap.c
index 1f201393aef1..f81d8057a7e6 100644
--- a/util/bitmap.c
+++ b/util/bitmap.c
@@ -376,7 +376,7 @@ static void bitmap_to_from_le(unsigned long *dst,
 {
     long len = BITS_TO_LONGS(nbits);
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     long index;
 
     for (index = 0; index < len; index++) {
diff --git a/util/host-utils.c b/util/host-utils.c
index bcc772b8ec95..96d5dc0bed25 100644
--- a/util/host-utils.c
+++ b/util/host-utils.c
@@ -34,7 +34,7 @@ static inline void mul64(uint64_t *plow, uint64_t *phigh,
     typedef union {
         uint64_t ll;
         struct {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
             uint32_t high, low;
 #else
             uint32_t low, high;
diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc
index 6101bca3fd7a..764ac45409ae 100644
--- a/target/ppc/translate/vmx-impl.c.inc
+++ b/target/ppc/translate/vmx-impl.c.inc
@@ -173,7 +173,7 @@ static void gen_mtvscr(DisasContext *ctx)
 
     val = tcg_temp_new_i32();
     bofs = avr_full_offset(rB(ctx->opcode));
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     bofs += 3 * 4;
 #endif
 
@@ -1692,7 +1692,7 @@ static void gen_vsplt(DisasContext *ctx, int vece)
 
     /* Experimental testing shows that hardware masks the immediate.  */
     bofs += (uimm << vece) & 15;
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     bofs ^= 15;
     bofs &= ~((1 << vece) - 1);
 #endif
diff --git a/target/ppc/translate/vsx-impl.c.inc b/target/ppc/translate/vsx-impl.c.inc
index e67fbf2bb8ed..c4cc01239ea3 100644
--- a/target/ppc/translate/vsx-impl.c.inc
+++ b/target/ppc/translate/vsx-impl.c.inc
@@ -1552,7 +1552,7 @@ static bool trans_XXSPLTW(DisasContext *ctx, arg_XX2_uim2 *a)
     tofs = vsr_full_offset(a->xt);
     bofs = vsr_full_offset(a->xb);
     bofs += a->uim << MO_32;
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     bofs ^= 8 | 4;
 #endif
 
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc
index 275fded6e43b..04b55e5040ba 100644
--- a/target/riscv/insn_trans/trans_rvv.c.inc
+++ b/target/riscv/insn_trans/trans_rvv.c.inc
@@ -3288,7 +3288,7 @@ static void load_element(TCGv_i64 dest, TCGv_ptr base,
 /* offset of the idx element with base regsiter r */
 static uint32_t endian_ofs(DisasContext *s, int r, int idx)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     return vreg_ofs(s, r) + ((idx ^ (7 >> s->sew)) << s->sew);
 #else
     return vreg_ofs(s, r) + (idx << s->sew);
@@ -3298,7 +3298,7 @@ static uint32_t endian_ofs(DisasContext *s, int r, int idx)
 /* adjust the index according to the endian */
 static void endian_adjust(TCGv_i32 ofs, int sew)
 {
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     tcg_gen_xori_i32(ofs, ofs, 7 >> sew);
 #endif
 }
diff --git a/target/s390x/tcg/translate_vx.c.inc b/target/s390x/tcg/translate_vx.c.inc
index 98eb7710a4a9..b829ce0c7c79 100644
--- a/target/s390x/tcg/translate_vx.c.inc
+++ b/target/s390x/tcg/translate_vx.c.inc
@@ -175,7 +175,7 @@ static void get_vec_element_ptr_i64(TCGv_ptr ptr, uint8_t reg, TCGv_i64 enr,
 
     /* convert it to an element offset relative to cpu_env (vec_reg_offset() */
     tcg_gen_shli_i64(tmp, tmp, es);
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
     tcg_gen_xori_i64(tmp, tmp, 8 - NUM_VEC_ELEMENT_BYTES(es));
 #endif
     tcg_gen_addi_i64(tmp, tmp, vec_full_reg_offset(reg));
diff --git a/tcg/aarch64/tcg-target.c.inc b/tcg/aarch64/tcg-target.c.inc
index 077fc5140154..eb38113a70af 100644
--- a/tcg/aarch64/tcg-target.c.inc
+++ b/tcg/aarch64/tcg-target.c.inc
@@ -1557,7 +1557,7 @@ static void tcg_out_adr(TCGContext *s, TCGReg rd, const void *target)
  */
 static void * const qemu_ld_helpers[MO_SIZE + 1] = {
     [MO_8]  = helper_ret_ldub_mmu,
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     [MO_16] = helper_be_lduw_mmu,
     [MO_32] = helper_be_ldul_mmu,
     [MO_64] = helper_be_ldq_mmu,
@@ -1574,7 +1574,7 @@ static void * const qemu_ld_helpers[MO_SIZE + 1] = {
  */
 static void * const qemu_st_helpers[MO_SIZE + 1] = {
     [MO_8]  = helper_ret_stb_mmu,
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     [MO_16] = helper_be_stw_mmu,
     [MO_32] = helper_be_stl_mmu,
     [MO_64] = helper_be_stq_mmu,
diff --git a/tcg/arm/tcg-target.c.inc b/tcg/arm/tcg-target.c.inc
index 4bc0420f4d2f..2c6c353eea2b 100644
--- a/tcg/arm/tcg-target.c.inc
+++ b/tcg/arm/tcg-target.c.inc
@@ -1296,7 +1296,7 @@ static void tcg_out_vldst(TCGContext *s, ARMInsn insn,
 static void * const qemu_ld_helpers[MO_SSIZE + 1] = {
     [MO_UB]   = helper_ret_ldub_mmu,
     [MO_SB]   = helper_ret_ldsb_mmu,
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     [MO_UW] = helper_be_lduw_mmu,
     [MO_UL] = helper_be_ldul_mmu,
     [MO_UQ] = helper_be_ldq_mmu,
@@ -1316,7 +1316,7 @@ static void * const qemu_ld_helpers[MO_SSIZE + 1] = {
  */
 static void * const qemu_st_helpers[MO_SIZE + 1] = {
     [MO_8]   = helper_ret_stb_mmu,
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     [MO_16] = helper_be_stw_mmu,
     [MO_32] = helper_be_stl_mmu,
     [MO_64] = helper_be_stq_mmu,
diff --git a/tcg/mips/tcg-target.c.inc b/tcg/mips/tcg-target.c.inc
index 993149d18a56..bd76f0c97f15 100644
--- a/tcg/mips/tcg-target.c.inc
+++ b/tcg/mips/tcg-target.c.inc
@@ -26,7 +26,7 @@
 
 #include "../tcg-ldst.c.inc"
 
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
 # define MIPS_BE  1
 #else
 # define MIPS_BE  0
diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc
index 1f3c5c171cb7..cfcd121f9c23 100644
--- a/tcg/ppc/tcg-target.c.inc
+++ b/tcg/ppc/tcg-target.c.inc
@@ -1864,7 +1864,7 @@ void tb_target_set_jmp_target(uintptr_t tc_ptr, uintptr_t jmp_rx,
             i1 = ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, hi >> 16);
             i2 = ADDI | TAI(TCG_REG_TB, TCG_REG_TB, lo);
         }
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
         pair = (uint64_t)i1 << 32 | i2;
 #else
         pair = (uint64_t)i2 << 32 | i1;
@@ -3235,7 +3235,7 @@ static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
             tcg_out_mem_long(s, 0, LVEBX, out, base, offset);
         }
         elt = extract32(offset, 0, 4);
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
         elt ^= 15;
 #endif
         tcg_out32(s, VSPLTB | VRT(out) | VRB(out) | (elt << 16));
@@ -3248,7 +3248,7 @@ static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
             tcg_out_mem_long(s, 0, LVEHX, out, base, offset);
         }
         elt = extract32(offset, 1, 3);
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
         elt ^= 7;
 #endif
         tcg_out32(s, VSPLTH | VRT(out) | VRB(out) | (elt << 16));
@@ -3261,7 +3261,7 @@ static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
         tcg_debug_assert((offset & 3) == 0);
         tcg_out_mem_long(s, 0, LVEWX, out, base, offset);
         elt = extract32(offset, 2, 2);
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
         elt ^= 3;
 #endif
         tcg_out32(s, VSPLTW | VRT(out) | VRB(out) | (elt << 16));
@@ -3275,7 +3275,7 @@ static bool tcg_out_dupm_vec(TCGContext *s, TCGType type, unsigned vece,
         tcg_out_mem_long(s, 0, LVX, out, base, offset & -16);
         tcg_out_vsldoi(s, TCG_VEC_TMP1, out, out, 8);
         elt = extract32(offset, 3, 1);
-#ifndef HOST_WORDS_BIGENDIAN
+#if !HOST_BIG_ENDIAN
         elt = !elt;
 #endif
         if (elt) {
diff --git a/tcg/riscv/tcg-target.c.inc b/tcg/riscv/tcg-target.c.inc
index 6409d9c3d54f..81a83e45b156 100644
--- a/tcg/riscv/tcg-target.c.inc
+++ b/tcg/riscv/tcg-target.c.inc
@@ -854,7 +854,7 @@ static void tcg_out_mb(TCGContext *s, TCGArg a0)
 static void * const qemu_ld_helpers[MO_SSIZE + 1] = {
     [MO_UB] = helper_ret_ldub_mmu,
     [MO_SB] = helper_ret_ldsb_mmu,
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     [MO_UW] = helper_be_lduw_mmu,
     [MO_SW] = helper_be_ldsw_mmu,
     [MO_UL] = helper_be_ldul_mmu,
@@ -879,7 +879,7 @@ static void * const qemu_ld_helpers[MO_SSIZE + 1] = {
  */
 static void * const qemu_st_helpers[MO_SIZE + 1] = {
     [MO_8]   = helper_ret_stb_mmu,
-#ifdef HOST_WORDS_BIGENDIAN
+#if HOST_BIG_ENDIAN
     [MO_16] = helper_be_stw_mmu,
     [MO_32] = helper_be_stl_mmu,
     [MO_64] = helper_be_stq_mmu,
-- 
2.35.1.273.ge6ebfd0e8cbb


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