Oliver O'Halloran | c762c69 | 2016-09-22 16:54:34 +1000 | [diff] [blame] | 1 | #ifndef __XZ_CONFIG_H__ |
| 2 | #define __XZ_CONFIG_H__ |
| 3 | |
| 4 | /* |
| 5 | * most of this is copied from lib/xz/xz_private.h, we can't use their defines |
| 6 | * since the boot wrapper is not built in the same environment as the rest of |
| 7 | * the kernel. |
| 8 | */ |
| 9 | |
| 10 | #include "types.h" |
| 11 | #include "swab.h" |
| 12 | |
| 13 | static inline uint32_t swab32p(void *p) |
| 14 | { |
| 15 | uint32_t *q = p; |
| 16 | |
| 17 | return swab32(*q); |
| 18 | } |
| 19 | |
| 20 | #ifdef __LITTLE_ENDIAN__ |
| 21 | #define get_le32(p) (*((uint32_t *) (p))) |
Masahiro Yamada | 34dd8fb | 2019-07-05 19:01:43 +0900 | [diff] [blame] | 22 | #define cpu_to_be32(x) swab32(x) |
| 23 | static inline u32 be32_to_cpup(const u32 *p) |
| 24 | { |
| 25 | return swab32p((u32 *)p); |
| 26 | } |
Oliver O'Halloran | c762c69 | 2016-09-22 16:54:34 +1000 | [diff] [blame] | 27 | #else |
| 28 | #define get_le32(p) swab32p(p) |
Masahiro Yamada | 34dd8fb | 2019-07-05 19:01:43 +0900 | [diff] [blame] | 29 | #define cpu_to_be32(x) (x) |
| 30 | static inline u32 be32_to_cpup(const u32 *p) |
| 31 | { |
| 32 | return *p; |
| 33 | } |
Oliver O'Halloran | c762c69 | 2016-09-22 16:54:34 +1000 | [diff] [blame] | 34 | #endif |
| 35 | |
Masahiro Yamada | 34dd8fb | 2019-07-05 19:01:43 +0900 | [diff] [blame] | 36 | static inline uint32_t get_unaligned_be32(const void *p) |
| 37 | { |
| 38 | return be32_to_cpup(p); |
| 39 | } |
| 40 | |
| 41 | static inline void put_unaligned_be32(u32 val, void *p) |
| 42 | { |
| 43 | *((u32 *)p) = cpu_to_be32(val); |
| 44 | } |
| 45 | |
Oliver O'Halloran | c762c69 | 2016-09-22 16:54:34 +1000 | [diff] [blame] | 46 | #define memeq(a, b, size) (memcmp(a, b, size) == 0) |
| 47 | #define memzero(buf, size) memset(buf, 0, size) |
| 48 | |
| 49 | /* prevent the inclusion of the xz-preboot MM headers */ |
| 50 | #define DECOMPR_MM_H |
| 51 | #define memmove memmove |
| 52 | #define XZ_EXTERN static |
| 53 | |
| 54 | /* xz.h needs to be included directly since we need enum xz_mode */ |
| 55 | #include "../../../include/linux/xz.h" |
| 56 | |
| 57 | #undef XZ_EXTERN |
| 58 | |
| 59 | #endif |