1 /*****************************************************************************/
5 /* Linker assertions for the ca65 crossassembler */
9 /* (C) 2003 Ullrich von Bassewitz */
10 /* Römerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
15 /* This software is provided 'as-is', without any expressed or implied */
16 /* warranty. In no event will the authors be held liable for any damages */
17 /* arising from the use of this software. */
19 /* Permission is granted to anyone to use this software for any purpose, */
20 /* including commercial applications, and to alter it and redistribute it */
21 /* freely, subject to the following restrictions: */
23 /* 1. The origin of this software must not be misrepresented; you must not */
24 /* claim that you wrote the original software. If you use this software */
25 /* in a product, an acknowledgment in the product documentation would be */
26 /* appreciated but is not required. */
27 /* 2. Altered source versions must be plainly marked as such, and must not */
28 /* be misrepresented as being the original software. */
29 /* 3. This notice may not be removed or altered from any source */
32 /*****************************************************************************/
48 /*****************************************************************************/
50 /*****************************************************************************/
54 /* An assertion entry */
55 typedef struct Assertion Assertion;
57 ExprNode* Expr; /* Expression to evaluate */
58 unsigned Action; /* Action to take */
59 unsigned Msg; /* Message to print (if any) */
60 FilePos Pos; /* File position of assertion */
63 /* Collection with all assertions for a module */
64 static Collection Assertions = STATIC_COLLECTION_INITIALIZER;
68 /*****************************************************************************/
70 /*****************************************************************************/
74 static Assertion* NewAssertion (ExprNode* Expr, unsigned Action, unsigned Msg)
75 /* Create a new Assertion struct and return it */
78 Assertion* A = xmalloc (sizeof (Assertion));
80 /* Initialize the fields */
86 /* Return the new struct */
92 void AddAssertion (ExprNode* Expr, unsigned Action, unsigned Msg)
93 /* Add an assertion to the assertion table */
95 /* Add an assertion object to the table */
96 CollAppend (&Assertions, NewAssertion (Expr, Action, Msg));
101 void WriteAssertions (void)
102 /* Write the assertion table to the object file */
106 /* Get the number of strings in the string pool */
107 unsigned Count = CollCount (&Assertions);
109 /* Tell the object file module that we're about to start the assertions */
110 ObjStartAssertions ();
112 /* Write the string count to the list */
115 /* Write the assertions */
116 for (I = 0; I < Count; ++I) {
118 /* Get the next assertion */
119 Assertion* A = CollAtUnchecked (&Assertions, I);
121 /* Finalize the expression */
122 A->Expr = FinalizeExpr (A->Expr);
124 /* Write it to the file */
126 ObjWriteVar (A->Action);
127 ObjWriteVar (A->Msg);
128 ObjWritePos (&A->Pos);
131 /* Done writing the assertions */