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Allow recursively reentering CALL32_LargeStack.

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Ulrich Weigand 1998-12-07 10:23:10 +00:00 committed by Alexandre Julliard
parent f638aef517
commit 75de18d807
1 changed files with 11 additions and 0 deletions
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11
tools/build.c
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@ -2295,6 +2295,9 @@ static void BuildCallTo32CBClient( FILE *outfile )
* The pointer to the function can be retrieved by calling CALL32_Init, * The pointer to the function can be retrieved by calling CALL32_Init,
* which also takes care of saving the current 32-bit stack pointer. * which also takes care of saving the current 32-bit stack pointer.
* *
* NOTE: The CALL32_LargeStack routine may be recursively entered by the
* same thread, but not concurrently entered by several threads.
*
* Stack layout: * Stack layout:
* ... ... * ... ...
* (ebp+12) arg * (ebp+12) arg
@ -2333,7 +2336,12 @@ static void BuildCallTo32LargeStack( FILE *outfile )
/* Switch to the original 32-bit stack pointer */ /* Switch to the original 32-bit stack pointer */
fprintf( outfile, "\tcmpl $0, CALL32_RecursionCount\n" );
fprintf( outfile, "\tjne CALL32_skip\n" );
fprintf( outfile, "\tmovl CALL32_Original32_esp, %%esp\n" ); fprintf( outfile, "\tmovl CALL32_Original32_esp, %%esp\n" );
fprintf( outfile, "CALL32_skip:\n" );
fprintf( outfile, "\tincl CALL32_RecursionCount\n" );
/* Transfer the argument and call the function */ /* Transfer the argument and call the function */
@ -2342,6 +2350,8 @@ static void BuildCallTo32LargeStack( FILE *outfile )
/* Restore registers and return */ /* Restore registers and return */
fprintf( outfile, "\tdecl CALL32_RecursionCount\n" );
fprintf( outfile, "\tmovl %%ebp,%%esp\n" ); fprintf( outfile, "\tmovl %%ebp,%%esp\n" );
fprintf( outfile, "\tpopl %%ebp\n" ); fprintf( outfile, "\tpopl %%ebp\n" );
fprintf( outfile, "\tret\n" ); fprintf( outfile, "\tret\n" );
@ -2350,6 +2360,7 @@ static void BuildCallTo32LargeStack( FILE *outfile )
fprintf( outfile, "\t.data\n" ); fprintf( outfile, "\t.data\n" );
fprintf( outfile, "CALL32_Original32_esp:\t.long 0\n" ); fprintf( outfile, "CALL32_Original32_esp:\t.long 0\n" );
fprintf( outfile, "CALL32_RecursionCount:\t.long 0\n" );
fprintf( outfile, "\t.text\n" ); fprintf( outfile, "\t.text\n" );
} }