In preparation of heterogeneous emulation where cores with
different endianness can run concurrently, we need to remove
the tswap() calls -- which use a fixed per-binary endianness.
Get the endianness of the UHI CPU accessed using
mips_env_is_bigendian() and replace the tswap() calls
by bswap() ones when necessary.
Reviewed-by: Richard Henderson <richard.hender...@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
target/mips/tcg/sysemu/mips-semi.c | 43 +++++++++++++++++++++---------
1 file changed, 30 insertions(+), 13 deletions(-)
diff --git a/target/mips/tcg/sysemu/mips-semi.c
b/target/mips/tcg/sysemu/mips-semi.c
index 5ba06e95734..df0c3256d9e 100644
--- a/target/mips/tcg/sysemu/mips-semi.c
+++ b/target/mips/tcg/sysemu/mips-semi.c
@@ -168,6 +168,7 @@ static void uhi_fstat_cb(CPUState *cs, uint64_t ret, int
err)
if (!err) {
CPUMIPSState *env = cpu_env(cs);
+ bool swap_needed = HOST_BIG_ENDIAN != mips_env_is_bigendian(env);
target_ulong addr = env->active_tc.gpr[5];
UHIStat *dst = lock_user(VERIFY_WRITE, addr, sizeof(UHIStat), 1);
struct gdb_stat s;
@@ -179,19 +180,35 @@ static void uhi_fstat_cb(CPUState *cs, uint64_t ret, int
err)
memcpy(&s, dst, sizeof(struct gdb_stat));
memset(dst, 0, sizeof(UHIStat));
- dst->uhi_st_dev = tswap16(be32_to_cpu(s.gdb_st_dev));
- dst->uhi_st_ino = tswap16(be32_to_cpu(s.gdb_st_ino));
- dst->uhi_st_mode = tswap32(be32_to_cpu(s.gdb_st_mode));
- dst->uhi_st_nlink = tswap16(be32_to_cpu(s.gdb_st_nlink));
- dst->uhi_st_uid = tswap16(be32_to_cpu(s.gdb_st_uid));
- dst->uhi_st_gid = tswap16(be32_to_cpu(s.gdb_st_gid));
- dst->uhi_st_rdev = tswap16(be32_to_cpu(s.gdb_st_rdev));
- dst->uhi_st_size = tswap64(be64_to_cpu(s.gdb_st_size));
- dst->uhi_st_atime = tswap64(be32_to_cpu(s.gdb_st_atime));
- dst->uhi_st_mtime = tswap64(be32_to_cpu(s.gdb_st_mtime));
- dst->uhi_st_ctime = tswap64(be32_to_cpu(s.gdb_st_ctime));
- dst->uhi_st_blksize = tswap64(be64_to_cpu(s.gdb_st_blksize));
- dst->uhi_st_blocks = tswap64(be64_to_cpu(s.gdb_st_blocks));
+ dst->uhi_st_dev = be32_to_cpu(s.gdb_st_dev);
+ dst->uhi_st_ino = be32_to_cpu(s.gdb_st_ino);
+ dst->uhi_st_mode = be32_to_cpu(s.gdb_st_mode);
+ dst->uhi_st_nlink = be32_to_cpu(s.gdb_st_nlink);
+ dst->uhi_st_uid = be32_to_cpu(s.gdb_st_uid);
+ dst->uhi_st_gid = be32_to_cpu(s.gdb_st_gid);
+ dst->uhi_st_rdev = be32_to_cpu(s.gdb_st_rdev);
+ dst->uhi_st_size = be64_to_cpu(s.gdb_st_size);
+ dst->uhi_st_atime = be32_to_cpu(s.gdb_st_atime);
+ dst->uhi_st_mtime = be32_to_cpu(s.gdb_st_mtime);
+ dst->uhi_st_ctime = be32_to_cpu(s.gdb_st_ctime);
+ dst->uhi_st_blksize = be64_to_cpu(s.gdb_st_blksize);
+ dst->uhi_st_blocks = be64_to_cpu(s.gdb_st_blocks);
+
+ if (swap_needed) {
+ dst->uhi_st_dev = bswap16(dst->uhi_st_dev);
+ dst->uhi_st_ino = bswap16(dst->uhi_st_ino);
+ dst->uhi_st_mode = bswap32(dst->uhi_st_mode);
+ dst->uhi_st_nlink = bswap16(dst->uhi_st_nlink);
+ dst->uhi_st_uid = bswap16(dst->uhi_st_uid);
+ dst->uhi_st_gid = bswap16(dst->uhi_st_gid);
+ dst->uhi_st_rdev = bswap16(dst->uhi_st_rdev);
+ dst->uhi_st_size = bswap64(dst->uhi_st_size);
+ dst->uhi_st_atime = bswap64(dst->uhi_st_atime);
+ dst->uhi_st_mtime = bswap64(dst->uhi_st_mtime);
+ dst->uhi_st_ctime = bswap64(dst->uhi_st_ctime);
+ dst->uhi_st_blksize = bswap64(dst->uhi_st_blksize);
+ dst->uhi_st_blocks = bswap64(dst->uhi_st_blocks);
+ }
unlock_user(dst, addr, sizeof(UHIStat));
}
--
2.45.2
