The Android Open Source Project | 88b6079 | 2009-03-03 19:28:42 -0800 | [diff] [blame] | 1 | #include <debug.h> |
| 2 | #include <cmdline.h> |
| 3 | #include <stdio.h> |
| 4 | #include <stdlib.h> |
| 5 | #include <getopt.h> |
| 6 | #include <string.h> |
| 7 | #include <ctype.h> |
| 8 | |
| 9 | extern char *optarg; |
| 10 | extern int optind, opterr, optopt; |
| 11 | |
| 12 | static struct option long_options[] = |
| 13 | { |
| 14 | {"verbose", no_argument, 0, 'V'}, |
| 15 | {"quiet", no_argument, 0, 'Q'}, |
| 16 | {"shady", no_argument, 0, 'S'}, |
| 17 | {"print", no_argument, 0, 'p'}, |
| 18 | {"help", no_argument, 0, 'h'}, |
| 19 | {"outfile", required_argument, 0, 'o'}, |
| 20 | {"filter", required_argument, 0, 'f'}, |
| 21 | {"dry", no_argument, 0, 'n'}, |
| 22 | {"strip", no_argument, 0, 's'}, |
| 23 | {0, 0, 0, 0}, |
| 24 | }; |
| 25 | |
| 26 | /* This array must parallel long_options[] */ |
| 27 | static |
| 28 | const char *descriptions[sizeof(long_options)/sizeof(long_options[0])] = { |
| 29 | "print verbose output", |
| 30 | "suppress errors and warnings", |
| 31 | "patch ABS symbols whose values coincide with section starts and ends", |
| 32 | "print the symbol table (if specified, only -V is allowed)", |
| 33 | "this help screen", |
| 34 | "specify an output file (if not provided, input file is modified)", |
| 35 | "specify a symbol-filter file", |
| 36 | "dry run (perform all calculations but do not modify the ELF file)", |
| 37 | "strip debug sections, if they are present" |
| 38 | }; |
| 39 | |
| 40 | void print_help(void) |
| 41 | { |
| 42 | fprintf(stdout, |
| 43 | "invokation:\n" |
| 44 | "\tsoslim file1 [file2 file3 ... fileN] [-Ldir1 -Ldir2 ... -LdirN] " |
| 45 | "[-Vpn]\n" |
| 46 | "or\n" |
| 47 | "\tsoslim -h\n\n"); |
| 48 | fprintf(stdout, "options:\n"); |
| 49 | struct option *opt = long_options; |
| 50 | const char **desc = descriptions; |
| 51 | while (opt->name) { |
| 52 | fprintf(stdout, "\t-%c/--%-15s %s\n", |
| 53 | opt->val, |
| 54 | opt->name, |
| 55 | *desc); |
| 56 | opt++; |
| 57 | desc++; |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | int get_options(int argc, char **argv, |
| 62 | char **outfile, |
| 63 | char **symsfile, |
| 64 | int *print_symtab, |
| 65 | int *verbose, |
| 66 | int *quiet, |
| 67 | int *shady, |
| 68 | int *dry_run, |
| 69 | int *strip_debug) |
| 70 | { |
| 71 | int c; |
| 72 | |
| 73 | ASSERT(outfile); |
| 74 | *outfile = NULL; |
| 75 | ASSERT(symsfile); |
| 76 | *symsfile = NULL; |
| 77 | ASSERT(print_symtab); |
| 78 | *print_symtab = 0; |
| 79 | ASSERT(verbose); |
| 80 | *verbose = 0; |
| 81 | ASSERT(quiet); |
| 82 | *quiet = 0; |
| 83 | ASSERT(shady); |
| 84 | *shady = 0; |
| 85 | ASSERT(dry_run); |
| 86 | *dry_run = 0; |
| 87 | ASSERT(strip_debug); |
| 88 | *strip_debug = 0; |
| 89 | |
| 90 | while (1) { |
| 91 | /* getopt_long stores the option index here. */ |
| 92 | int option_index = 0; |
| 93 | |
| 94 | c = getopt_long (argc, argv, |
| 95 | "QVSphi:o:y:Y:f:ns", |
| 96 | long_options, |
| 97 | &option_index); |
| 98 | /* Detect the end of the options. */ |
| 99 | if (c == -1) break; |
| 100 | |
| 101 | if (isgraph(c)) { |
| 102 | INFO ("option -%c with value `%s'\n", c, (optarg ?: "(null)")); |
| 103 | } |
| 104 | |
| 105 | #define SET_STRING_OPTION(name) do { \ |
| 106 | ASSERT(optarg); \ |
| 107 | *name = strdup(optarg); \ |
| 108 | } while(0) |
| 109 | |
| 110 | switch (c) { |
| 111 | case 0: |
| 112 | /* If this option set a flag, do nothing else now. */ |
| 113 | if (long_options[option_index].flag != 0) |
| 114 | break; |
| 115 | INFO ("option %s", long_options[option_index].name); |
| 116 | if (optarg) |
| 117 | INFO (" with arg %s", optarg); |
| 118 | INFO ("\n"); |
| 119 | break; |
| 120 | case 'p': *print_symtab = 1; break; |
| 121 | case 'h': print_help(); exit(1); break; |
| 122 | case 'V': *verbose = 1; break; |
| 123 | case 'Q': *quiet = 1; break; |
| 124 | case 'S': *shady = 1; break; |
| 125 | case 'n': *dry_run = 1; break; |
| 126 | case 's': *strip_debug = 1; break; |
| 127 | case 'o': SET_STRING_OPTION(outfile); break; |
| 128 | case 'f': SET_STRING_OPTION(symsfile); break; |
| 129 | case '?': |
| 130 | /* getopt_long already printed an error message. */ |
| 131 | break; |
| 132 | |
| 133 | #undef SET_STRING_OPTION |
| 134 | |
| 135 | default: |
| 136 | FAILIF(1, "Unknown option"); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | return optind; |
| 141 | } |