From: drh <>
Date: Fri, 30 May 2025 15:43:04 +0000 (+0000)
Subject: Use a more robust backup definition for offsetof().
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=8ae57fab64aa1e16596763b9d9435aa1f7e9933d;p=thirdparty%2Fsqlite.git

Use a more robust backup definition for offsetof().

FossilOrigin-Name: 22441955e03df07903b98832a60c05c53721cd67c667f6c83d5e97fcc62735ee
---

diff --git a/ext/fts3/fts3Int.h b/ext/fts3/fts3Int.h
index d438549de1..bd4666253c 100644
--- a/ext/fts3/fts3Int.h
+++ b/ext/fts3/fts3Int.h
@@ -213,7 +213,7 @@ typedef sqlite3_int64 i64;        /* 8-byte signed integer */
 ** Macros needed to provide flexible arrays in a portable way
 */
 #ifndef offsetof
-# define offsetof(STRUCTURE,FIELD) ((size_t)((char*)&((STRUCTURE*)0)->FIELD))
+# define offsetof(ST,M) ((size_t)((char*)&((ST*)0)->M - (char*)0))
 #endif
 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
 # define FLEXARRAY
diff --git a/ext/fts5/fts5Int.h b/ext/fts5/fts5Int.h
index 7ad1cc16bd..dbab6546ce 100644
--- a/ext/fts5/fts5Int.h
+++ b/ext/fts5/fts5Int.h
@@ -80,7 +80,7 @@ typedef sqlite3_uint64 u64;
 ** Macros needed to provide flexible arrays in a portable way
 */
 #ifndef offsetof
-# define offsetof(STRUCTURE,FIELD) ((size_t)((char*)&((STRUCTURE*)0)->FIELD))
+# define offsetof(ST,M) ((size_t)((char*)&((ST*)0)->M - (char*)0))
 #endif
 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
 # define FLEXARRAY
diff --git a/ext/rtree/rtree.c b/ext/rtree/rtree.c
index d8567b65ac..f7d3bda01a 100644
--- a/ext/rtree/rtree.c
+++ b/ext/rtree/rtree.c
@@ -97,7 +97,7 @@ typedef unsigned int u32;
 # define NEVER(X)       (X)
 #endif
 #ifndef offsetof
-#define offsetof(STRUCTURE,FIELD) ((size_t)((char*)&((STRUCTURE*)0)->FIELD))
+# define offsetof(ST,M) ((size_t)((char*)&((ST*)0)->M - (char*)0))
 #endif
 #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)
 # define FLEXARRAY
diff --git a/manifest b/manifest
index edfc16cb16..d86a409642 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Add\s"include\s<stddef.h>"\sto\sfts5\sand\srtree\sto\sensure\sthat\sthey\suse\sthe\ssystem\sversion\sof\sthe\soffsetof()\smacro\swhen\sit\sis\savailable,\sas\sthe\sbuilt-in\sversion\striggers\subsan\serrors\swith\sclang.
-D 2025-05-30T11:14:11.545
+C Use\sa\smore\srobust\sbackup\sdefinition\sfor\soffsetof().
+D 2025-05-30T15:43:04.641
 F .fossil-settings/binary-glob 61195414528fb3ea9693577e1980230d78a1f8b0a54c78cf1b9b24d0a409ed6a x
 F .fossil-settings/empty-dirs dbb81e8fc0401ac46a1491ab34a7f2c7c0452f2f06b54ebb845d024ca8283ef1
 F .fossil-settings/ignore-glob 35175cdfcf539b2318cb04a9901442804be81cd677d8b889fcc9149c21f239ea
@@ -82,7 +82,7 @@ F ext/fts3/README.tokenizers b92bdeb8b46503f0dd301d364efc5ef59ef9fa8e2758b8e742f
 F ext/fts3/README.txt 8c18f41574404623b76917b9da66fcb0ab38328d
 F ext/fts3/fts3.c 4f02858ab845a97bedf06e6cc1fba49a81fe5e00a26df68d0ad0f00a5814fa70
 F ext/fts3/fts3.h 3a10a0af180d502cecc50df77b1b22df142817fe
-F ext/fts3/fts3Int.h 53f00a0d037c81174af1089ad7776563dcbccb5ed4697405256d3d4260d9fccc
+F ext/fts3/fts3Int.h d0f70d602be987501cf6eff86a06a0b5d0389929c6abe24972d59594e6f4cb03
 F ext/fts3/fts3_aux.c 7eab82a9cf0830f6551ba3abfdbe73ed39e322a4d3940ee82fbf723674ecd9f3
 F ext/fts3/fts3_expr.c 5c13796638d8192c388777166075cdc8bc4b6712024cd5b72c31acdbefce5984
 F ext/fts3/fts3_hash.c d9dba473741445789330c7513d4f65737c92df23c3212784312931641814672a
@@ -108,7 +108,7 @@ F ext/fts3/unicode/mkunicode.tcl cbf5f7b5c8ce8014bad731f246f2e520eece908465de477
 F ext/fts3/unicode/parseunicode.tcl a981bd6466d12dd17967515801c3ff23f74a281be1a03cf1e6f52a6959fc77eb
 F ext/fts5/extract_api_docs.tcl 009cf59c77afa86d137b0cca3e3b1a5efbe2264faa2df233f9a7aa8563926d15
 F ext/fts5/fts5.h ff5d3cc88b29e41612bfb29eb723e29e38973de62ca75ba3e8f94ccb67f5b5f2
-F ext/fts5/fts5Int.h 4c7380ce83e8f6b5b3216ebe2b33093a20fa72e832a88d14023f827b7d8b9933
+F ext/fts5/fts5Int.h cc1e6ed28e1fbde71e4427ba6d15b0c73a4f8f119adeb4f7bcc97e3336fbbeac
 F ext/fts5/fts5_aux.c da4a7a9a11ec15c6df0699d908915a209bcde48f0b04101461316b59f71abffb
 F ext/fts5/fts5_buffer.c f1e6d0324d7c55329d340673befc26681a372a4d36086caa8d1ec7d7c53066c7
 F ext/fts5/fts5_config.c e7d8dd062b44a66cd77e5a0f74f23a2354cd1f3f8575afb967b2773c3384f7f8
@@ -539,7 +539,7 @@ F ext/repair/test/checkindex01.test b530f141413b587c9eb78ff734de6bb79bc3515c3350
 F ext/repair/test/test.tcl 686d76d888dffd021f64260abf29a55c57b2cedfa7fc69150b42b1d6119aac3c
 F ext/rtree/README 734aa36238bcd2dee91db5dba107d5fcbdb02396612811377a8ad50f1272b1c1
 F ext/rtree/geopoly.c f0573d5109fdc658a180db0db6eec86ab2a1cf5ce58ec66cbf3356167ea757eb
-F ext/rtree/rtree.c 811edc5c2f3e13dcee825a8ec6f2ebe29b34bdb0186184d75d461621173638fa
+F ext/rtree/rtree.c a1f04a2013bc8f982307760615d1cee591355ac4723c74c3761c128d5c6954ab
 F ext/rtree/rtree.h 4a690463901cb5e6127cf05eb8e642f127012fd5003830dbc974eca5802d9412
 F ext/rtree/rtree1.test e0608db762b2aadca0ecb6f97396cf66244490adc3ba88f2a292b27be3e1da3e
 F ext/rtree/rtree2.test 9d9deddbb16fd0c30c36e6b4fdc3ee3132d765567f0f9432ee71e1303d32603d
@@ -790,7 +790,7 @@ F src/shell.c.in ba53a52dafb167ac6320703da741386c34fbcabe8c078a188bb9f89808e3ef8
 F src/sqlite.h.in 22882ddd3a70751aa8864c81993ee4562ed54c2c508b6270f75e223ffee38e1b
 F src/sqlite3.rc 015537e6ac1eec6c7050e17b616c2ffe6f70fca241835a84a4f0d5937383c479
 F src/sqlite3ext.h 0bfd049bb2088cc44c2ad54f2079d1c6e43091a4e1ce8868779b75f6c1484f1e
-F src/sqliteInt.h ded2e1527c84603d9d91adccb63dda460d96a2e2f98111d0438a479aa0dbe4e3
+F src/sqliteInt.h bb9137b860b2416b12788f09b32384ceab96b720aae07a6e9afacc545e43619a
 F src/sqliteLimit.h 6d817c28a8f19af95e6f4921933b7fbbca48a962bce0eb0ec81e8bb3ef38e68b
 F src/status.c 0e72e4f6be6ccfde2488eb63210297e75f569f3ce9920f6c3d77590ec6ce5ffd
 F src/table.c 0f141b58a16de7e2fbe81c308379e7279f4c6b50eb08efeec5892794a0ba30d1
@@ -856,7 +856,7 @@ F src/util.c 36fb1150062957280777655976f3f9a75db236cb8207a0770ceae8d5ec17fcd3
 F src/vacuum.c d580ceb395c1ae3d59da41cbfea60683ff7dd2b94ddf4d0f5657620159e2eeb7
 F src/vdbe.c 0feab5781141acca67bd5de84172fff902304274ec5cfe58609f005b8d160050
 F src/vdbe.h 31eddcffc1d14c76c2a20fe4e137e1ee43d44f370896fae14a067052801a3625
-F src/vdbeInt.h 5446f60e89b2aa7cdf3ab0ec4e7b01b8732cd9d52d9092a0b8b1bf700768f784
+F src/vdbeInt.h 0bc581a9763be385e3af715e8c0a503ba8422c2b7074922faf4bb0d6ae31b15e
 F src/vdbeapi.c 28fab30ed0acc981aecfdcaab0a421503609078e29850eb28494816682baf0a7
 F src/vdbeaux.c 948c379976885a073b54cc7d8ffda087dc1a1095d1f5bb8df218796f8c933ac3
 F src/vdbeblob.c b1b4032cac46b41e44b957c4d00aee9851f862dfd85ecb68116ba49884b03dfd
@@ -2207,8 +2207,8 @@ F tool/version-info.c 3b36468a90faf1bbd59c65fd0eb66522d9f941eedd364fabccd7227350
 F tool/warnings-clang.sh bbf6a1e685e534c92ec2bfba5b1745f34fb6f0bc2a362850723a9ee87c1b31a7
 F tool/warnings.sh 1ad0169b022b280bcaaf94a7fa231591be96b514230ab5c98fbf15cd7df842dd
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P 10d0897cc9a5998fe1344cfbb242a78b59012e29aa3b1993895dfac26721b053
-R 1dcfe8c63509fb843f7cb99753e48416
-U dan
-Z de257d291b8e704afcab14c5e293267b
+P 838deb7f3423df84061a043928ed34e1d74e2e7d57ef1a9519bb32fea82e4352
+R f90e835fc47fd28633f6ea822565f1aa
+U drh
+Z 7aebbf3ed91eff2f4d9c6af4a39f70fc
 # Remove this line to create a well-formed Fossil manifest.
diff --git a/manifest.uuid b/manifest.uuid
index 1938e46d3d..5e80e01b63 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-838deb7f3423df84061a043928ed34e1d74e2e7d57ef1a9519bb32fea82e4352
+22441955e03df07903b98832a60c05c53721cd67c667f6c83d5e97fcc62735ee
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index af7ed4a4c8..994a3864c1 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -765,7 +765,7 @@
 ** ourselves.
 */
 #ifndef offsetof
-#define offsetof(STRUCTURE,FIELD) ((size_t)((char*)&((STRUCTURE*)0)->FIELD))
+# define offsetof(ST,M) ((size_t)((char*)&((ST*)0)->M - (char*)0))
 #endif
 
 /*
@@ -2661,6 +2661,13 @@ struct KeyInfo {
 /* The size (in bytes) of a KeyInfo object with up to N fields */
 #define SZ_KEYINFO(N)  (offsetof(KeyInfo,aColl) + (N)*sizeof(CollSeq*))
 
+/* The size of a bare KeyInfo with no aColl[] entries */
+#if FLEXARRAY+1 > 1
+# define SZ_KEYINFO_0   offsetof(KeyInfo,aColl)
+#else
+# define SZ_KEYINFO_0   sizeof(KeyInfo)
+#endif
+
 /*
 ** Allowed bit values for entries in the KeyInfo.aSortFlags[] array.
 */
diff --git a/src/vdbeInt.h b/src/vdbeInt.h
index 13262cd4e2..0faa327472 100644
--- a/src/vdbeInt.h
+++ b/src/vdbeInt.h
@@ -557,7 +557,7 @@ struct PreUpdate {
   Table *pTab;                    /* Schema object being updated */
   Index *pPk;                     /* PK index if pTab is WITHOUT ROWID */
   sqlite3_value **apDflt;         /* Array of default values, if required */
-  u8 keyinfoSpace[SZ_KEYINFO(0)]; /* Space to hold pKeyinfo[0] content */
+  u8 keyinfoSpace[SZ_KEYINFO_0];  /* Space to hold pKeyinfo[0] content */
 };
 
 /*