mirror of https://github.com/sqlite/sqlite
Additional code to make sure and to assert that memory allocations have
8-byte alignment. Ticket #3777. (CVS 6450) FossilOrigin-Name: 208382e032134d9c78fe1cfcb98ce9defb4e3e26
This commit is contained in:
drh
parent
3c71364643
commit
ea598cbd8d
22
manifest
22
manifest
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@ -1,5 +1,5 @@
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C Allow\sthe\sjournal_size_limit\sto\sbe\slarger\sthan\s2147483647\sbytes.\s(CVS\s6449)
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D 2009-04-04T16:02:32
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C Additional\scode\sto\smake\ssure\sand\sto\sassert\sthat\smemory\sallocations\shave\n8-byte\salignment.\s\sTicket\s#3777.\s(CVS\s6450)
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D 2009-04-05T12:22:09
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F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
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F Makefile.in 583e87706abc3026960ed759aff6371faf84c211
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F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
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@ -103,7 +103,7 @@ F src/auth.c c8b2ab5c8bad4bd90ed7c294694f48269162c627
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F src/backup.c 0082d0e5a63f04e88faee0dff0a7d63d3e92a78d
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F src/bitvec.c ef370407e03440b0852d05024fb016b14a471d3d
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F src/btmutex.c 341502bc496dc0840dcb00cde65680fb0e85c3ab
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F src/btree.c f4fdf5359f910dd9ac8d7bd92a67dae072b75f81
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F src/btree.c 457a71a1ebf490d5079ebe36d0213a8025d621a8
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F src/btree.h 8007018c1753944790c39610280894ab280210b8
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F src/btreeInt.h df64030d632f8c8ac217ed52e8b6b3eacacb33a5
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F src/build.c 72357fd75ef036d0afbf1756edab6d62c56fcf4b
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@ -129,7 +129,7 @@ F src/mem1.c e6d5c23941288df8191b8a98c28e3f57771e2270
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F src/mem2.c d02bd6a5b34f2d59012a852615621939d9c09548
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F src/mem3.c 67153ec933e08b70714055e872efb58a6b287939
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F src/mem5.c 838309b521c96a2a34507f74a5a739d28de4aac6
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F src/memjournal.c d6f5cc35cdba795fc3d39812c5669cc012b5ed6f
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F src/memjournal.c 1a987d078e7446a44417a1a6a01f80b48cf65b93
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F src/mutex.c 5e2ea0e0490a3567dc08a014bcee748c0cea727f
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F src/mutex.h 9e686e83a88838dac8b9c51271c651e833060f1e
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F src/mutex_noop.c f5a07671f25a1a9bd7c10ad7107bc2585446200f
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@ -143,7 +143,7 @@ F src/os_common.h 8c61457df58f1a4bd5f5adc3e90e01b37bf7afbc
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F src/os_os2.c bed77dc26e3a95ce4a204936b9a1ca6fe612fcc5
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F src/os_unix.c 5d667f24615043c937a138faaed5f3e93b8619b0
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F src/os_win.c 524fe4c31c469531191857e8036ef59bfb52d684
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F src/pager.c a8b53f7e4a821d5bc2e01477a5f10c9348ce1d7b
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F src/pager.c 1df277b7c78f780df119c9e2ddea6690979489c5
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F src/pager.h 0c9f3520c00d8a3b8e792ca56c9a11b6b02b4b0f
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F src/parse.y 070215cf461ab917c23253a9cbf0903f2b0d8f19
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F src/pcache.c 395f752a13574120bd7513a400ba02a265aaa76d
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@ -159,7 +159,7 @@ F src/select.c 462d9671e91accd983110fa38674be0d2a3daa66
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F src/shell.c 0a11f831603f17fea20ca97133c0f64e716af4a7
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F src/sqlite.h.in 59905c98fd40b3eb3c9a939a113858c75009b7b6
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F src/sqlite3ext.h 1db7d63ab5de4b3e6b83dd03d1a4e64fef6d2a17
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F src/sqliteInt.h 22114af78e17ab06b4ccd3b3f7db8ab14b5f2bb9
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F src/sqliteInt.h d1239060599bc45ed9e4668cb7759e6c433dd5ab
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F src/sqliteLimit.h ffe93f5a0c4e7bd13e70cd7bf84cfb5c3465f45d
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F src/status.c 237b193efae0cf6ac3f0817a208de6c6c6ef6d76
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F src/table.c 332ab0ea691e63862e2a8bdfe2c0617ee61062a3
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@ -204,9 +204,9 @@ F src/vdbe.c bddddefc5c7ec1c9cd3e4f9220eb813b43668605
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F src/vdbe.h d70a68bee196ab228914a3902c79dbd24342a0f2
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F src/vdbeInt.h 53a2f4696871712646c77351904576cca6ad9752
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F src/vdbeapi.c 950986b0f765b5b91aab1acb2b405d9450b749d1
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F src/vdbeaux.c 521187e184f642b3978c0ec00a0e165a45518ea6
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F src/vdbeaux.c d335ae5da63cd3b3a0f122e63d0e79e34a4e4fb1
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F src/vdbeblob.c e67757450ae8581a8b354d9d7e467e41502dfe38
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F src/vdbemem.c 53ab1c07800340d2ae100cb99537775a25b2efff
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F src/vdbemem.c 9798905787baae83d0b53b62030e32ecf7a0586f
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F src/vtab.c f1aba5a6dc1f83b97a39fbbc58ff8cbc76311347
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F src/walker.c 42bd3f00ca2ef5ae842304ec0d59903ef051412d
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F src/where.c 5a421d7265c79dc21c010e3218fd3abd448ec297
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@ -715,7 +715,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
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F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
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F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
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F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
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P 11c77f4c2c2beee5267ea6e2f1a4bb845531b42c
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R 6fa763bbfd08cb93ca1062548d8a5a81
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P 81931259611ef10de731ea0e38cee92eb8629733
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R d1ec9689e8427e115f63f6ba1a6ce699
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U drh
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Z 3ec086d0c80add1adc32688c8dbd85a1
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Z d2872fc10d5a41a2536ecb51dcae9785
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@ -1 +1 @@
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81931259611ef10de731ea0e38cee92eb8629733
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208382e032134d9c78fe1cfcb98ce9defb4e3e26
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@ -9,7 +9,7 @@
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** May you share freely, never taking more than you give.
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**
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*************************************************************************
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** $Id: btree.c,v 1.589 2009/04/02 20:16:59 drh Exp $
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** $Id: btree.c,v 1.590 2009/04/05 12:22:09 drh Exp $
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**
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** This file implements a external (disk-based) database using BTrees.
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** See the header comment on "btreeInt.h" for additional information.
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@ -5357,13 +5357,13 @@ static int balance_nonroot(BtCursor *pCur){
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}
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szCell = (u16*)&apCell[nMaxCells];
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aCopy[0] = (u8*)&szCell[nMaxCells];
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assert( ((aCopy[0] - (u8*)0) & 7)==0 ); /* 8-byte alignment required */
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assert( EIGHT_BYTE_ALIGNMENT(aCopy[0]) );
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for(i=1; i<NB; i++){
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aCopy[i] = &aCopy[i-1][pBt->pageSize+ROUND8(sizeof(MemPage))];
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assert( ((aCopy[i] - (u8*)0) & 7)==0 ); /* 8-byte alignment required */
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}
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aSpace1 = &aCopy[NB-1][pBt->pageSize+ROUND8(sizeof(MemPage))];
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assert( ((aSpace1 - (u8*)0) & 7)==0 ); /* 8-byte alignment required */
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assert( EIGHT_BYTE_ALIGNMENT(aSpace1) );
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if( ISAUTOVACUUM ){
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aFrom = &aSpace1[pBt->pageSize];
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}
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** The in-memory rollback journal is used to journal transactions for
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** ":memory:" databases and when the journal_mode=MEMORY pragma is used.
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**
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** @(#) $Id: memjournal.c,v 1.10 2009/04/02 17:22:42 drh Exp $
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** @(#) $Id: memjournal.c,v 1.11 2009/04/05 12:22:09 drh Exp $
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*/
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#include "sqliteInt.h"
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@ -237,6 +237,7 @@ static struct sqlite3_io_methods MemJournalMethods = {
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*/
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void sqlite3MemJournalOpen(sqlite3_file *pJfd){
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MemJournal *p = (MemJournal *)pJfd;
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assert( EIGHT_BYTE_ALIGNMENT(p) );
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memset(p, 0, sqlite3MemJournalSize());
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p->pMethod = &MemJournalMethods;
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}
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26
src/pager.c
26
src/pager.c
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@ -18,7 +18,7 @@
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** file simultaneously, or one process from reading the database while
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** another is writing.
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**
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** @(#) $Id: pager.c,v 1.577 2009/04/04 15:53:48 drh Exp $
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** @(#) $Id: pager.c,v 1.578 2009/04/05 12:22:09 drh Exp $
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*/
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#ifndef SQLITE_OMIT_DISKIO
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#include "sqliteInt.h"
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@ -3114,9 +3114,9 @@ int sqlite3PagerOpen(
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** source file journal.c).
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*/
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if( sqlite3JournalSize(pVfs)>sqlite3MemJournalSize() ){
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journalFileSize = sqlite3JournalSize(pVfs);
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journalFileSize = ROUND8(sqlite3JournalSize(pVfs));
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}else{
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journalFileSize = sqlite3MemJournalSize();
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journalFileSize = ROUND8(sqlite3MemJournalSize());
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}
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/* Set the output variable to NULL in case an error occurs. */
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** Journal file name (nPathname+8+1 bytes)
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*/
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pPtr = (u8 *)sqlite3MallocZero(
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sizeof(*pPager) + /* Pager structure */
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pcacheSize + /* PCache object */
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pVfs->szOsFile + /* The main db file */
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journalFileSize * 2 + /* The two journal files */
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nPathname + 1 + /* zFilename */
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nPathname + 8 + 1 /* zJournal */
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ROUND8(sizeof(*pPager)) + /* Pager structure */
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ROUND8(pcacheSize) + /* PCache object */
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ROUND8(pVfs->szOsFile) + /* The main db file */
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journalFileSize * 2 + /* The two journal files */
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nPathname + 1 + /* zFilename */
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nPathname + 8 + 1 /* zJournal */
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);
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assert( EIGHT_BYTE_ALIGNMENT(journalFileSize) );
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if( !pPtr ){
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sqlite3_free(zPathname);
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return SQLITE_NOMEM;
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}
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pPager = (Pager*)(pPtr);
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pPager->pPCache = (PCache*)(pPtr += sizeof(*pPager));
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pPager->fd = (sqlite3_file*)(pPtr += pcacheSize);
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pPager->sjfd = (sqlite3_file*)(pPtr += pVfs->szOsFile);
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pPager->pPCache = (PCache*)(pPtr += ROUND8(sizeof(*pPager)));
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pPager->fd = (sqlite3_file*)(pPtr += ROUND8(pcacheSize));
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pPager->sjfd = (sqlite3_file*)(pPtr += ROUND8(pVfs->szOsFile));
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pPager->jfd = (sqlite3_file*)(pPtr += journalFileSize);
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pPager->zFilename = (char*)(pPtr += journalFileSize);
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assert( EIGHT_BYTE_ALIGNMENT(pPager->jfd) );
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/* Fill in the Pager.zFilename and Pager.zJournal buffers, if required. */
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if( zPathname ){
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*************************************************************************
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** Internal interface definitions for SQLite.
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**
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** @(#) $Id: sqliteInt.h,v 1.850 2009/04/01 18:03:01 danielk1977 Exp $
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** @(#) $Id: sqliteInt.h,v 1.851 2009/04/05 12:22:09 drh Exp $
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*/
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#ifndef _SQLITEINT_H_
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#define _SQLITEINT_H_
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*/
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#define ROUNDDOWN8(x) ((x)&~7)
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/*
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** Assert that the pointer X is aligned to an 8-byte boundary.
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*/
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#define EIGHT_BYTE_ALIGNMENT(X) ((((char*)(X) - (char*)0)&7)==0)
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/*
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** An instance of the following structure is used to store the busy-handler
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** callback for a given sqlite handle.
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** to version 2.8.7, all this code was combined into the vdbe.c source file.
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** But that file was getting too big so this subroutines were split out.
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**
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** $Id: vdbeaux.c,v 1.446 2009/03/25 15:43:09 danielk1977 Exp $
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** $Id: vdbeaux.c,v 1.447 2009/04/05 12:22:09 drh Exp $
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*/
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#include "sqliteInt.h"
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#include "vdbeInt.h"
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@ -1023,6 +1023,7 @@ static void allocSpace(
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u8 *pEnd, /* Pointer to 1 byte past the end of *ppFrom buffer */
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int *pnByte /* If allocation cannot be made, increment *pnByte */
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){
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assert( EIGHT_BYTE_ALIGNMENT(*ppFrom) );
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if( (*(void**)pp)==0 ){
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nByte = ROUND8(nByte);
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if( (pEnd - *ppFrom)>=nByte ){
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if( isExplain && nMem<10 ){
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nMem = 10;
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}
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zCsr += (zCsr - (u8*)0)&7;
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assert( EIGHT_BYTE_ALIGNMENT(zCsr) );
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do {
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memset(zCsr, 0, zEnd-zCsr);
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** only within the VDBE. Interface routines refer to a Mem using the
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** name sqlite_value
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**
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** $Id: vdbemem.c,v 1.139 2009/03/29 15:12:10 drh Exp $
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** $Id: vdbemem.c,v 1.140 2009/04/05 12:22:09 drh Exp $
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*/
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#include "sqliteInt.h"
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#include "vdbeInt.h"
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@ -209,6 +209,7 @@ int sqlite3VdbeMemStringify(Mem *pMem, int enc){
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assert( !(fg&(MEM_Str|MEM_Blob)) );
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assert( fg&(MEM_Int|MEM_Real) );
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assert( (pMem->flags&MEM_RowSet)==0 );
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assert( EIGHT_BYTE_ALIGNMENT(pMem) );
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if( sqlite3VdbeMemGrow(pMem, nByte, 0) ){
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i64 sqlite3VdbeIntValue(Mem *pMem){
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int flags;
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assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
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assert( EIGHT_BYTE_ALIGNMENT(pMem) );
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flags = pMem->flags;
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if( flags & MEM_Int ){
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return pMem->u.i;
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*/
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double sqlite3VdbeRealValue(Mem *pMem){
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assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
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assert( EIGHT_BYTE_ALIGNMENT(pMem) );
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if( pMem->flags & MEM_Real ){
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return pMem->r;
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}else if( pMem->flags & MEM_Int ){
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assert( pMem->flags & MEM_Real );
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assert( (pMem->flags & MEM_RowSet)==0 );
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assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
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assert( EIGHT_BYTE_ALIGNMENT(pMem) );
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pMem->u.i = doubleToInt64(pMem->r);
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if( pMem->r==(double)pMem->u.i ){
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int sqlite3VdbeMemIntegerify(Mem *pMem){
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assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
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assert( (pMem->flags & MEM_RowSet)==0 );
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assert( EIGHT_BYTE_ALIGNMENT(pMem) );
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pMem->u.i = sqlite3VdbeIntValue(pMem);
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MemSetTypeFlag(pMem, MEM_Int);
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return SQLITE_OK;
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*/
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int sqlite3VdbeMemRealify(Mem *pMem){
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assert( pMem->db==0 || sqlite3_mutex_held(pMem->db->mutex) );
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assert( EIGHT_BYTE_ALIGNMENT(pMem) );
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pMem->r = sqlite3VdbeRealValue(pMem);
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MemSetTypeFlag(pMem, MEM_Real);
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return SQLITE_OK;
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