1 /* PR target/54121 */
2 /* Reported by Jan Engelhardt <jengelh@inai.de> */
3 
4 /* { dg-do compile { target fpic } } */
5 /* { dg-options "-std=gnu99 -O -fPIC -fprofile-generate" } */
6 /* { dg-require-profiling "-fprofile-generate" } */
7 
8 typedef __SIZE_TYPE__ size_t;
9 typedef unsigned char uint8_t;
10 
11 extern void *memcpy (void *__restrict __dest,
12        __const void *__restrict __src, size_t __n)
13      __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 2)));
14 
15 typedef enum {
16  LZMA_OK = 0,
17  LZMA_STREAM_END = 1,
18  LZMA_NO_CHECK = 2,
19  LZMA_UNSUPPORTED_CHECK = 3,
20  LZMA_GET_CHECK = 4,
21  LZMA_MEM_ERROR = 5,
22  LZMA_MEMLIMIT_ERROR = 6,
23  LZMA_FORMAT_ERROR = 7,
24  LZMA_OPTIONS_ERROR = 8,
25  LZMA_DATA_ERROR = 9,
26  LZMA_BUF_ERROR = 10,
27  LZMA_PROG_ERROR = 11,
28 } lzma_ret;
29 
30 typedef enum {
31  LZMA_RUN = 0,
32  LZMA_SYNC_FLUSH = 1,
33  LZMA_FULL_FLUSH = 2,
34  LZMA_FINISH = 3
35 } lzma_action;
36 
37 typedef struct {
38  void *( *alloc)(void *opaque, size_t nmemb, size_t size);
39  void ( *free)(void *opaque, void *ptr);
40  void *opaque;
41 } lzma_allocator;
42 
43 typedef struct lzma_coder_s lzma_coder;
44 
45 typedef struct lzma_next_coder_s lzma_next_coder;
46 
47 typedef struct lzma_filter_info_s lzma_filter_info;
48 
49 typedef lzma_ret (*lzma_init_function)(
50   lzma_next_coder *next, lzma_allocator *allocator,
51   const lzma_filter_info *filters);
52 
53 typedef lzma_ret (*lzma_code_function)(
54   lzma_coder *coder, lzma_allocator *allocator,
55   const uint8_t *restrict in, size_t *restrict in_pos,
56   size_t in_size, uint8_t *restrict out,
57   size_t *restrict out_pos, size_t out_size,
58   lzma_action action);
59 
60 typedef void (*lzma_end_function)(
61   lzma_coder *coder, lzma_allocator *allocator);
62 
63 typedef struct {
64  uint8_t *buf;
65  size_t pos;
66  size_t size;
67 } lzma_dict;
68 
69 typedef struct {
70  lzma_coder *coder;
71  lzma_ret (*code)(lzma_coder *restrict coder,
72    lzma_dict *restrict dict, const uint8_t *restrict in,
73    size_t *restrict in_pos, size_t in_size);
74 } lzma_lz_decoder;
75 
76 struct lzma_coder_s {
77  lzma_dict dict;
78  lzma_lz_decoder lz;
79 };
80 
81 lzma_ret
decode_buffer(lzma_coder * coder,const uint8_t * restrict in,size_t * restrict in_pos,size_t in_size,uint8_t * restrict out,size_t * restrict out_pos)82 decode_buffer(lzma_coder *coder,
83   const uint8_t *restrict in, size_t *restrict in_pos,
84   size_t in_size, uint8_t *restrict out, size_t *restrict out_pos)
85 {
86  while (1) {
87   const size_t dict_start = coder->dict.pos;
88   const lzma_ret ret
89     = coder->lz.code( coder->lz.coder, &coder->dict, in, in_pos, in_size);
90   const size_t copy_size = coder->dict.pos - dict_start;
91   memcpy(out + *out_pos, coder->dict.buf + dict_start, copy_size);
92   if (ret != LZMA_OK || coder->dict.pos < coder->dict.size)
93    return ret;
94  }
95 }
96