diff options
| -rw-r--r-- | linux-user/syscall_types.h | 4 | ||||
| -rw-r--r-- | thunk.c | 28 | ||||
| -rw-r--r-- | thunk.h | 28 |
3 files changed, 58 insertions, 2 deletions
diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h index fb8c9c980c..601618df98 100644 --- a/linux-user/syscall_types.h +++ b/linux-user/syscall_types.h @@ -83,9 +83,9 @@ STRUCT(mixer_info, /* loop device ioctls */ STRUCT(loop_info, TYPE_INT, /* lo_number */ - TYPE_SHORT, /* lo_device */ + TYPE_OLDDEVT, /* lo_device */ TYPE_ULONG, /* lo_inode */ - TYPE_SHORT, /* lo_rdevice */ + TYPE_OLDDEVT, /* lo_rdevice */ TYPE_INT, /* lo_offset */ TYPE_INT, /* lo_encrypt_type */ TYPE_INT, /* lo_encrypt_key_size */ diff --git a/thunk.c b/thunk.c index 06571889ae..8ebbbb46b6 100644 --- a/thunk.c +++ b/thunk.c @@ -46,6 +46,7 @@ static inline const argtype *thunk_type_next(const argtype *type_ptr) case TYPE_LONG: case TYPE_ULONG: case TYPE_PTRVOID: + case TYPE_OLDDEVT: return type_ptr; case TYPE_PTR: return thunk_type_next_ptr(type_ptr); @@ -188,6 +189,33 @@ const argtype *thunk_convert(void *dst, const void *src, #else #warning unsupported conversion #endif + case TYPE_OLDDEVT: + { + uint64_t val = 0; + switch (thunk_type_size(type_ptr - 1, !to_host)) { + case 2: + val = *(uint16_t *)src; + break; + case 4: + val = *(uint32_t *)src; + break; + case 8: + val = *(uint64_t *)src; + break; + } + switch (thunk_type_size(type_ptr - 1, to_host)) { + case 2: + *(uint16_t *)dst = tswap16(val); + break; + case 4: + *(uint32_t *)dst = tswap32(val); + break; + case 8: + *(uint64_t *)dst = tswap64(val); + break; + } + break; + } case TYPE_ARRAY: { int array_length, i, dst_size, src_size; diff --git a/thunk.h b/thunk.h index 9810743191..5be8f912f5 100644 --- a/thunk.h +++ b/thunk.h @@ -37,6 +37,7 @@ typedef enum argtype { TYPE_PTR, TYPE_ARRAY, TYPE_STRUCT, + TYPE_OLDDEVT, } argtype; #define MK_PTR(type) TYPE_PTR, type @@ -104,6 +105,31 @@ static inline int thunk_type_size(const argtype *type_ptr, int is_host) return TARGET_ABI_BITS / 8; } break; + case TYPE_OLDDEVT: + if (is_host) { +#if defined(HOST_X86_64) + return 8; +#elif defined(HOST_ALPHA) || defined(HOST_IA64) || defined(HOST_MIPS) || \ + defined(HOST_PARISC) || defined(HOST_SPARC64) + return 4; +#elif defined(HOST_PPC) + return HOST_LONG_SIZE; +#else + return 2; +#endif + } else { +#if defined(TARGET_X86_64) + return 8; +#elif defined(TARGET_ALPHA) || defined(TARGET_IA64) || defined(TARGET_MIPS) || \ + defined(TARGET_PARISC) || defined(TARGET_SPARC64) + return 4; +#elif defined(TARGET_PPC) + return TARGET_ABI_BITS / 8; +#else + return 2; +#endif + } + break; case TYPE_ARRAY: size = type_ptr[1]; return size * thunk_type_size_array(type_ptr + 2, is_host); @@ -141,6 +167,8 @@ static inline int thunk_type_align(const argtype *type_ptr, int is_host) return TARGET_ABI_BITS / 8; } break; + case TYPE_OLDDEVT: + return thunk_type_size(type_ptr, is_host); case TYPE_ARRAY: return thunk_type_align_array(type_ptr + 2, is_host); case TYPE_STRUCT: |