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楼主 |
发表于 2006-11-14 22:15:47
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整个ppcboot代码中只有astest.c文件出现了asection和_cooked_size，_raw_size
astest.c文件如下：奇怪～
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <bfd.h>
#include "error.h"
int verbose = 0;
void
process_section(bfd *abfd, asection *sect, PTR obj)
{
printf("Section '%s':\n", sect->name);
printf("\tindex=%d, flags=%x\n", sect->index, sect->flags);
#if 0
printf("\tuser_set_vma=%u, reloc_done=%u, linker_mark=%u, gc_mark=%u\n",
(unsigned long)sect->user_set_vma, (unsigned long)sect->reloc_done,
(unsigned long)sect->linker_mark, (unsigned long)sect->gc_mark);
#else
printf("\tuser_set_vma=%u, reloc_done=%u\n",
(unsigned int)sect->user_set_vma, (unsigned int)sect->reloc_done);
#endif
printf("\tvma=%08lx, lma=%08lx\n",
(unsigned long)sect->vma, (unsigned long)sect->lma);
printf("\tcooked_size=%ld, raw_size=%ld, output_offset=%ld\n",
(long)sect->_cooked_size, (long)sect->_raw_size,
(long)sect->output_offset);
printf("\talignment_power=%d, reloc_count=%d, filepos=%ld\n",
sect->alignment_power, sect->reloc_count, sect->filepos);
printf("\trel_filepos=%ld, line_filepos=%ld, lineno_count=%d\n",
sect->rel_filepos, sect->line_filepos, sect->lineno_count);
printf("\tmoving_line_filepos=%ld, target_index=%d\n",
sect->moving_line_filepos, sect->target_index);
}
int
main(int ac, char **av)
{
int c, ifd;
char *ifn;
bfd *bfdp;
if ((pname = strrchr(av[0], '/')) == NULL)
pname = av[0];
else
pname++;
while ((c = getopt(ac, av, "v")) != EOF)
switch (c) {
case 'v':
verbose = 1;
break;
default:
usage:
fprintf(stderr, "Usage: %s [-v] imagefile\n", pname);
exit(1);
}
if (optind != ac - 1)
goto usage;
ifn = av[optind];
if (verbose)
fprintf(stderr, "Opening file...\n");
if ((ifd = open(ifn, O_RDONLY)) < 0)
Perror("can't open image file '%s'", ifn);
if ((bfdp = bfd_fdopenr(ifn, "elf32-powerpc", ifd)) == NULL) {
bfd_perror(ifn);
close(ifd);
Error("bfd_fdopenr of file '%s' failed", ifn);
}
bfdp->cacheable = 1;
if (!bfd_check_format(bfdp, bfd_object) ||
(bfd_get_file_flags(bfdp) & EXEC_P) == 0) {
bfd_close(bfdp);
Error("file '%s' is not an executable object file (%s,0x%x)", ifn,
bfd_format_string(bfd_get_format(bfdp)), bfd_get_file_flags(bfdp));
}
printf("file '%s' is type '%s'...\n", ifn, bfd_get_target(bfdp));
bfd_map_over_sections(bfdp, process_section, NULL);;
bfd_close(bfdp);
if (verbose)
fprintf(stderr, "Done.\n");
return (0);
} |
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发表于 2006-11-14 21:54:18
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