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Removed toolchain specific warnings

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- Comparisons with differently signed integer types
- Incorrectly signed constant
- Unreachable default returns
- Leaked uninitialized variables in relocate goto statements
This commit is contained in:
Christopher Haster
2017-10-16 19:31:56 -05:00
parent 0825d34f3d
commit 2ab150cc50
1 changed files with 143 additions and 139 deletions
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282
lfs.c
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@@ -373,8 +373,8 @@ static int lfs_dir_alloc(lfs_t *lfs, lfs_dir_t *dir) {
// set defaults // set defaults
dir->d.rev += 1; dir->d.rev += 1;
dir->d.size = sizeof(dir->d)+4; dir->d.size = sizeof(dir->d)+4;
dir->d.tail[0] = -1; dir->d.tail[0] = 0xffffffff;
dir->d.tail[1] = -1; dir->d.tail[1] = 0xffffffff;
dir->off = sizeof(dir->d); dir->off = sizeof(dir->d);
// don't write out yet, let caller take care of that // don't write out yet, let caller take care of that
@@ -455,88 +455,91 @@ static int lfs_dir_commit(lfs_t *lfs, lfs_dir_t *dir,
bool relocated = false; bool relocated = false;
while (true) { while (true) {
int err = lfs_bd_erase(lfs, dir->pair[0]); if (true) {
if (err) { int err = lfs_bd_erase(lfs, dir->pair[0]);
if (err == LFS_ERR_CORRUPT) { if (err) {
goto relocate; if (err == LFS_ERR_CORRUPT) {
goto relocate;
}
return err;
} }
return err;
}
uint32_t crc = 0xffffffff; uint32_t crc = 0xffffffff;
lfs_crc(&crc, &dir->d, sizeof(dir->d)); lfs_crc(&crc, &dir->d, sizeof(dir->d));
err = lfs_bd_prog(lfs, dir->pair[0], 0, &dir->d, sizeof(dir->d)); err = lfs_bd_prog(lfs, dir->pair[0], 0, &dir->d, sizeof(dir->d));
if (err) { if (err) {
if (err == LFS_ERR_CORRUPT) { if (err == LFS_ERR_CORRUPT) {
goto relocate; goto relocate;
}
return err;
} }
return err;
}
int i = 0; int i = 0;
lfs_off_t oldoff = sizeof(dir->d); lfs_off_t oldoff = sizeof(dir->d);
lfs_off_t newoff = sizeof(dir->d); lfs_off_t newoff = sizeof(dir->d);
while (newoff < (0x7fffffff & dir->d.size)-4) { while (newoff < (0x7fffffff & dir->d.size)-4) {
if (i < count && regions[i].oldoff == oldoff) { if (i < count && regions[i].oldoff == oldoff) {
lfs_crc(&crc, regions[i].newdata, regions[i].newlen); lfs_crc(&crc, regions[i].newdata, regions[i].newlen);
int err = lfs_bd_prog(lfs, dir->pair[0], int err = lfs_bd_prog(lfs, dir->pair[0],
newoff, regions[i].newdata, regions[i].newlen); newoff, regions[i].newdata, regions[i].newlen);
if (err) { if (err) {
if (err == LFS_ERR_CORRUPT) { if (err == LFS_ERR_CORRUPT) {
goto relocate; goto relocate;
}
return err;
} }
return err;
}
oldoff += regions[i].oldlen; oldoff += regions[i].oldlen;
newoff += regions[i].newlen; newoff += regions[i].newlen;
i += 1; i += 1;
} else { } else {
uint8_t data; uint8_t data;
int err = lfs_bd_read(lfs, oldpair[1], oldoff, &data, 1); int err = lfs_bd_read(lfs, oldpair[1], oldoff, &data, 1);
if (err) { if (err) {
return err; return err;
}
lfs_crc(&crc, &data, 1);
err = lfs_bd_prog(lfs, dir->pair[0], newoff, &data, 1);
if (err) {
if (err == LFS_ERR_CORRUPT) {
goto relocate;
} }
return err;
lfs_crc(&crc, &data, 1);
err = lfs_bd_prog(lfs, dir->pair[0], newoff, &data, 1);
if (err) {
if (err == LFS_ERR_CORRUPT) {
goto relocate;
}
return err;
}
oldoff += 1;
newoff += 1;
} }
oldoff += 1;
newoff += 1;
} }
}
err = lfs_bd_prog(lfs, dir->pair[0], newoff, &crc, 4); err = lfs_bd_prog(lfs, dir->pair[0], newoff, &crc, 4);
if (err) { if (err) {
if (err == LFS_ERR_CORRUPT) { if (err == LFS_ERR_CORRUPT) {
goto relocate; goto relocate;
}
return err;
} }
return err;
}
err = lfs_bd_sync(lfs); err = lfs_bd_sync(lfs);
if (err) { if (err) {
if (err == LFS_ERR_CORRUPT) { if (err == LFS_ERR_CORRUPT) {
goto relocate; goto relocate;
}
return err;
} }
return err;
}
// successful commit, check checksum to make sure // successful commit, check checksum to make sure
crc = 0xffffffff; crc = 0xffffffff;
err = lfs_bd_crc(lfs, dir->pair[0], 0, 0x7fffffff & dir->d.size, &crc); err = lfs_bd_crc(lfs, dir->pair[0], 0,
if (err) { 0x7fffffff & dir->d.size, &crc);
return err; if (err) {
} return err;
}
if (crc == 0) { if (crc == 0) {
break; break;
}
} }
relocate: relocate:
@@ -554,7 +557,7 @@ relocate:
} }
// relocate half of pair // relocate half of pair
err = lfs_alloc(lfs, &dir->pair[0]); int err = lfs_alloc(lfs, &dir->pair[0]);
if (err) { if (err) {
return err; return err;
} }
@@ -791,8 +794,6 @@ static int lfs_dir_find(lfs_t *lfs, lfs_dir_t *dir,
return err; return err;
} }
} }
return 0;
} }
@@ -1021,7 +1022,7 @@ static int lfs_ctz_find(lfs_t *lfs,
lfs_block_t head, lfs_size_t size, lfs_block_t head, lfs_size_t size,
lfs_size_t pos, lfs_block_t *block, lfs_off_t *off) { lfs_size_t pos, lfs_block_t *block, lfs_off_t *off) {
if (size == 0) { if (size == 0) {
*block = -1; *block = 0xffffffff;
*off = 0; *off = 0;
return 0; return 0;
} }
@@ -1053,59 +1054,15 @@ static int lfs_ctz_extend(lfs_t *lfs,
lfs_block_t head, lfs_size_t size, lfs_block_t head, lfs_size_t size,
lfs_off_t *block, lfs_block_t *off) { lfs_off_t *block, lfs_block_t *off) {
while (true) { while (true) {
// go ahead and grab a block if (true) {
int err = lfs_alloc(lfs, block); // go ahead and grab a block
if (err) { int err = lfs_alloc(lfs, block);
return err; if (err) {
} return err;
assert(*block >= 2 && *block <= lfs->cfg->block_count);
err = lfs_bd_erase(lfs, *block);
if (err) {
if (err == LFS_ERR_CORRUPT) {
goto relocate;
} }
return err; assert(*block >= 2 && *block <= lfs->cfg->block_count);
}
if (size == 0) { err = lfs_bd_erase(lfs, *block);
*off = 0;
return 0;
}
size -= 1;
lfs_off_t index = lfs_ctz_index(lfs, &size);
size += 1;
// just copy out the last block if it is incomplete
if (size != lfs->cfg->block_size) {
for (lfs_off_t i = 0; i < size; i++) {
uint8_t data;
int err = lfs_cache_read(lfs, rcache, NULL, head, i, &data, 1);
if (err) {
return err;
}
err = lfs_cache_prog(lfs, pcache, rcache, *block, i, &data, 1);
if (err) {
if (err == LFS_ERR_CORRUPT) {
goto relocate;
}
return err;
}
}
*off = size;
return 0;
}
// append block
index += 1;
lfs_size_t skips = lfs_ctz(index) + 1;
for (lfs_off_t i = 0; i < skips; i++) {
int err = lfs_cache_prog(lfs, pcache, rcache,
*block, 4*i, &head, 4);
if (err) { if (err) {
if (err == LFS_ERR_CORRUPT) { if (err == LFS_ERR_CORRUPT) {
goto relocate; goto relocate;
@@ -1113,18 +1070,67 @@ static int lfs_ctz_extend(lfs_t *lfs,
return err; return err;
} }
if (i != skips-1) { if (size == 0) {
err = lfs_cache_read(lfs, rcache, NULL, head, 4*i, &head, 4); *off = 0;
if (err) { return 0;
return err;
}
} }
assert(head >= 2 && head <= lfs->cfg->block_count); size -= 1;
} lfs_off_t index = lfs_ctz_index(lfs, &size);
size += 1;
*off = 4*skips; // just copy out the last block if it is incomplete
return 0; if (size != lfs->cfg->block_size) {
for (lfs_off_t i = 0; i < size; i++) {
uint8_t data;
int err = lfs_cache_read(lfs, rcache, NULL,
head, i, &data, 1);
if (err) {
return err;
}
err = lfs_cache_prog(lfs, pcache, rcache,
*block, i, &data, 1);
if (err) {
if (err == LFS_ERR_CORRUPT) {
goto relocate;
}
return err;
}
}
*off = size;
return 0;
}
// append block
index += 1;
lfs_size_t skips = lfs_ctz(index) + 1;
for (lfs_off_t i = 0; i < skips; i++) {
int err = lfs_cache_prog(lfs, pcache, rcache,
*block, 4*i, &head, 4);
if (err) {
if (err == LFS_ERR_CORRUPT) {
goto relocate;
}
return err;
}
if (i != skips-1) {
err = lfs_cache_read(lfs, rcache, NULL,
head, 4*i, &head, 4);
if (err) {
return err;
}
}
assert(head >= 2 && head <= lfs->cfg->block_count);
}
*off = 4*skips;
return 0;
}
relocate: relocate:
LFS_DEBUG("Bad block at %d", *block); LFS_DEBUG("Bad block at %d", *block);
@@ -1161,8 +1167,6 @@ static int lfs_ctz_traverse(lfs_t *lfs,
index -= 1; index -= 1;
} }
return 0;
} }
@@ -1200,7 +1204,7 @@ int lfs_file_open(lfs_t *lfs, lfs_file_t *file,
entry.d.elen = sizeof(entry.d) - 4; entry.d.elen = sizeof(entry.d) - 4;
entry.d.alen = 0; entry.d.alen = 0;
entry.d.nlen = strlen(path); entry.d.nlen = strlen(path);
entry.d.u.file.head = -1; entry.d.u.file.head = 0xffffffff;
entry.d.u.file.size = 0; entry.d.u.file.size = 0;
err = lfs_dir_append(lfs, &cwd, &entry, path); err = lfs_dir_append(lfs, &cwd, &entry, path);
if (err) { if (err) {
@@ -1222,7 +1226,7 @@ int lfs_file_open(lfs_t *lfs, lfs_file_t *file,
file->pos = 0; file->pos = 0;
if (flags & LFS_O_TRUNC) { if (flags & LFS_O_TRUNC) {
file->head = -1; file->head = 0xffffffff;
file->size = 0; file->size = 0;
} }
@@ -1589,13 +1593,13 @@ lfs_soff_t lfs_file_seek(lfs_t *lfs, lfs_file_t *file,
if (whence == LFS_SEEK_SET) { if (whence == LFS_SEEK_SET) {
file->pos = off; file->pos = off;
} else if (whence == LFS_SEEK_CUR) { } else if (whence == LFS_SEEK_CUR) {
if (-off > file->pos) { if ((lfs_off_t)-off > file->pos) {
return LFS_ERR_INVAL; return LFS_ERR_INVAL;
} }
file->pos = file->pos + off; file->pos = file->pos + off;
} else if (whence == LFS_SEEK_END) { } else if (whence == LFS_SEEK_END) {
if (-off > file->size) { if ((lfs_off_t)-off > file->size) {
return LFS_ERR_INVAL; return LFS_ERR_INVAL;
} }