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comparison lwlink/map.c @ 234:d389adbcc4ab

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Added section base and length symbols to lwlink Added the ability for a link script to define section base and section length symbols when linking. These symbols are searched for when an external reference is resolved before looking up any symbols in the various objects being linked. Also documented the new link script directives and added such directives to all default link scripts.
author William Astle <lost@l-w.ca>
date Fri, 10 Aug 2012 23:47:56 -0600
parents fc8386b13399
children
comparison
equal deleted inserted replaced
233:7887a48b74df 234:d389adbcc4ab
46 int std = 0; 46 int std = 0;
47 struct symliste *slist = NULL; 47 struct symliste *slist = NULL;
48 struct symliste *ce, *pe, *ne; 48 struct symliste *ce, *pe, *ne;
49 symtab_t *sym; 49 symtab_t *sym;
50 int i; 50 int i;
51 symlist_t *se;
51 52
52 if (!strcmp(map_file, "-")) 53 if (!strcmp(map_file, "-"))
53 { 54 {
54 std = 1; 55 std = 1;
55 of = stdout; 56 of = stdout;
75 sectlist[sn].ptr -> codesize 76 sectlist[sn].ptr -> codesize
76 ); 77 );
77 } 78 }
78 79
79 // generate a sorted list of symbols and display it 80 // generate a sorted list of symbols and display it
81
82 for (se = symlist; se; se = se -> next)
83 {
84 for (pe = NULL, ce = slist; ce; ce = ce -> next)
85 {
86 i = strcmp(ce -> name, se -> sym);
87 if (i > 0)
88 {
89 break;
90 }
91 pe = ce;
92 }
93
94 ne = lw_alloc(sizeof(struct symliste));
95 ne -> ext = 1;
96 ne -> addr = se -> val;
97 ne -> next = ce;
98 ne -> name = se -> sym;
99 ne -> fn = "<synthetic>";
100 if (pe)
101 pe -> next = ne;
102 else
103 slist = ne;
104 }
105
80 for (sn = 0; sn < nsects; sn++) 106 for (sn = 0; sn < nsects; sn++)
81 { 107 {
82 for (sym = sectlist[sn].ptr -> localsyms; sym; sym = sym -> next) 108 for (sym = sectlist[sn].ptr -> localsyms; sym; sym = sym -> next)
83 { 109 {
84 for (pe = NULL, ce = slist; ce; ce = ce -> next) 110 for (pe = NULL, ce = slist; ce; ce = ce -> next)