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fetches sections starting from the back

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This commit is contained in:
Ricardo Quesada 2015-12-09 11:40:54 -08:00
parent 0b687439ea
commit a31d359bf1
2 changed files with 12 additions and 1 deletions
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1
libr/include/r_io.h
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@ -386,6 +386,7 @@ R_API RIOSection *r_io_section_get_name(RIO *io, const char *name);
R_API RIOSection *r_io_section_get_i(RIO *io, int idx);
R_API RIOSection *r_io_section_getv(RIO *io, ut64 vaddr);
R_API RIOSection *r_io_section_mget(RIO *io, ut64 maddr);
R_API RIOSection *r_io_section_mget_prev(RIO *io, ut64 maddr);
R_API RIOSection *r_io_section_vget(RIO *io, ut64 addr);
R_API RIOSection *r_io_section_pget(RIO *io, ut64 addr);
R_API int r_io_section_set_archbits(RIO *io, ut64 addr, const char *arch, int bits);

12
libr/io/section.c
View File

@ -274,6 +274,16 @@ R_API RIOSection *r_io_section_mget(RIO *io, ut64 maddr) {
return NULL;
}
R_API RIOSection *r_io_section_mget_prev(RIO *io, ut64 maddr) {
RIOSection *s;
RListIter *iter;
r_list_foreach_prev (io->sections, iter, s) {
if ((maddr >= s->offset && maddr < (s->offset + s->size)))
return s;
}
return NULL;
}
// XXX: rename this
R_API ut64 r_io_section_get_offset(RIO *io, ut64 maddr) {
RIOSection *s = r_io_section_mget (io, maddr);
@ -340,7 +350,7 @@ R_API ut64 r_io_section_vaddr_to_maddr(RIO *io, ut64 vaddr) {
/* returns the conversion from file offset to vaddr if the given offset is
* mapped somewhere, UT64_MAX otherwise */
R_API ut64 r_io_section_maddr_to_vaddr(RIO *io, ut64 offset) {
RIOSection *s = r_io_section_mget (io, offset);
RIOSection *s = r_io_section_mget_prev (io, offset);
if (s) {
io->section = s;
return (s->vaddr + offset - s->offset);