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comparison ticoff/reloc.c @ 110:e650fdc743fe

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tiobjd: higher-level reloc handling
author Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
date Thu, 03 Apr 2014 03:03:41 +0000
parents c20dc315a9d4
children d97fbe98600b
comparison
equal deleted inserted replaced
109:e40592990516 110:e650fdc743fe
5 #include <sys/types.h> 5 #include <sys/types.h>
6 #include <stdio.h> 6 #include <stdio.h>
7 #include <stdlib.h> 7 #include <stdlib.h>
8 #include "filestruct.h" 8 #include "filestruct.h"
9 #include "intstruct.h" 9 #include "intstruct.h"
10 #include "coffconst.h"
10 #include "globals.h" 11 #include "globals.h"
11 12
12 extern unsigned get_u16(), get_u32(); 13 extern unsigned get_u16(), get_u32();
13 14
14 cmd_rawrel() 15 cmd_rawrel()
31 get_u16(rel->r_reserved), get_u16(rel->r_type)); 32 get_u16(rel->r_reserved), get_u16(rel->r_type));
32 putchar('\n'); 33 putchar('\n');
33 } 34 }
34 exit(0); 35 exit(0);
35 } 36 }
37
38 void
39 get_relocs_of_sec(sec)
40 struct internal_scnhdr *sec;
41 {
42 unsigned n;
43 struct external_reloc *extrel;
44 struct internal_reloc *intrel;
45 unsigned lastloc, symidx;
46
47 if (sec->int_relocs)
48 return;
49 if (!sec->nreloc) {
50 fprintf(stderr,
51 "BUG: get_relocs_of_sec() called for section \"%s\" w/o relocs\n",
52 sec->name);
53 exit(1);
54 }
55 intrel = malloc(sizeof(struct internal_reloc) * sec->nreloc);
56 if (!intrel) {
57 perror("malloc");
58 exit(1);
59 }
60 sec->int_relocs = intrel;
61 extrel = (struct external_reloc *)(filemap + sec->reloc_offset);
62 for (n = 0; n < sec->nreloc; n++, extrel++, intrel++) {
63 intrel->location = get_u32(extrel->r_vaddr);
64 if (n && intrel->location <= lastloc) {
65 fprintf(stderr,
66 "error: non-increasing reloc order in section \"%s\"\n",
67 sec->name);
68 exit(1);
69 }
70 lastloc = intrel->location;
71 symidx = get_u32(extrel->r_symndx);
72 if (symidx >= nsymtab || !symtab[symidx]) {
73 fprintf(stderr,
74 "error: reloc references invalid symbol #%u in section \"%s\"\n",
75 symidx, sec->name);
76 exit(1);
77 }
78 intrel->sym = symtab[symidx];
79 intrel->type = get_u16(extrel->r_type);
80 switch (intrel->type) {
81 case RTYPE_LONG:
82 intrel->typestr = "Word32";
83 break;
84 case RTYPE_THUMB_BL:
85 intrel->typestr = "Thumb_BL";
86 break;
87 case RTYPE_ARM_B:
88 intrel->typestr = "ARM_B";
89 break;
90 default:
91 fprintf(stderr,
92 "error: reloc in section \"%s\" of unexpected type 0x%x\n",
93 sec->name, intrel->type);
94 exit(1);
95 }
96 if (get_u16(extrel->r_reserved))
97 fprintf(stderr,
98 "warning: reloc in section \"%s\" has non-zero reserved field\n",
99 sec->name);
100 }
101 }
102
103 cmd_reloc()
104 {
105 unsigned n, m;
106 struct internal_scnhdr *sec;
107 struct internal_reloc *rel;
108
109 get_int_section_table();
110 get_int_symbol_table();
111 for (n = 0; n < nsections; n++) {
112 sec = sections + n;
113 if (!sec->nreloc)
114 continue;
115 printf("%s:\n\n", sec->name);
116 get_relocs_of_sec(sec);
117 rel = sec->int_relocs;
118 printf("Location Type Symbol relative to\n");
119 for (m = 0; m < sec->nreloc; m++, rel++)
120 printf("%08X %-8s %s\n", rel->location, rel->typestr,
121 rel->sym->name);
122 putchar('\n');
123 }
124 exit(0);
125 }