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Added LFSR_WCOMPAT_GCKSUM wcompat flag

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The gcksum isn't actually implemented yet, I mostly just wanted to
measure this code cost separately:

           code          stack          ctx
  before: 37768           2608          620
  after:  37796 (+0.1%)   2608 (+0.0%)  620 (+0.0%)

I may be procrastinating a little bit...
This commit is contained in:
Christopher Haster
2025-01-10 16:12:40 -06:00
parent b6ab323eb1
commit 7cd2d4dd11
2 changed files with 11 additions and 3 deletions
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lfs.c
+8 -2
View File
@@ -13383,7 +13383,7 @@ static int lfs_deinit(lfs_t *lfs) {
//
#define LFSR_RCOMPAT_NONSTANDARD 0x00000001 // Non-standard filesystem format
#define LFSR_RCOMPAT_WRONLY 0x00000002 // Reading is disallowed
#define LFSR_RCOMPAT_GRM 0x00000004 // May use a global-remove
#define LFSR_RCOMPAT_GRM 0x00000004 // Global-remove in use
#define LFSR_RCOMPAT_MMOSS 0x00000010 // May use an inlined mdir
#define LFSR_RCOMPAT_MSPROUT 0x00000020 // May use an mdir pointer
#define LFSR_RCOMPAT_MSHRUB 0x00000040 // May use an inlined mtree
@@ -13407,10 +13407,12 @@ static int lfs_deinit(lfs_t *lfs) {
#define LFSR_WCOMPAT_NONSTANDARD 0x00000001 // Non-standard filesystem format
#define LFSR_WCOMPAT_RDONLY 0x00000002 // Writing is disallowed
#define LFSR_WCOMPAT_GCKSUM 0x00000004 // Global-checksum in use
// internal
#define LFSR_wcompat_OVERFLOW 0x80000000 // Can't represent all flags
#define LFSR_WCOMPAT_COMPAT 0
#define LFSR_WCOMPAT_COMPAT \
(LFSR_WCOMPAT_GCKSUM)
#define LFSR_OCOMPAT_NONSTANDARD 0x00000001 // Non-standard filesystem format
// internal
@@ -14000,6 +14002,7 @@ static int lfsr_formatinited(lfs_t *lfs) {
// - any format-time configuration
// - the root's bookmark tag, which reserves did = 0 for the root
uint8_t rcompat_buf[LFSR_LE32_DSIZE];
uint8_t wcompat_buf[LFSR_LE32_DSIZE];
uint8_t geometry_buf[LFSR_GEOMETRY_DSIZE];
uint8_t name_limit_buf[LFSR_LLEB128_DSIZE];
uint8_t file_limit_buf[LFSR_LEB128_DSIZE];
@@ -14016,6 +14019,9 @@ static int lfsr_formatinited(lfs_t *lfs) {
LFSR_RAT(
LFSR_TAG_RCOMPAT, 0,
LFSR_DATA_LE32(LFSR_RCOMPAT_COMPAT, rcompat_buf)),
LFSR_RAT(
LFSR_TAG_WCOMPAT, 0,
LFSR_DATA_LE32(LFSR_WCOMPAT_COMPAT, wcompat_buf)),
LFSR_RAT(
LFSR_TAG_GEOMETRY, 0,
LFSR_DATA_GEOMETRY(
scripts/dbgflags.py
+3 -1
View File
@@ -152,7 +152,7 @@ FLAGS = [
('RCOMPAT', 'WRONLY',
0x00000002, "Reading is disallowed" ),
('RCOMPAT', 'GRM',
0x00000004, "May use a global-remove" ),
0x00000004, "Global-remove in use" ),
('RCOMPAT', 'MMOSS',
0x00000010, "May use an inlined mdir" ),
('RCOMPAT', 'MSPROUT',
@@ -177,6 +177,8 @@ FLAGS = [
0x00000001, "Non-standard filesystem format" ),
('WCOMPAT', 'RDONLY',
0x00000002, "Writing is disallowed" ),
('WCOMPAT', 'GCKSUM',
0x00000004, "Global-checksum in use" ),
('wcompat', 'OVERFLOW',
0x80000000, "Can't represent all flags" ),