Add elf_get_section_named
Document elf_get_section_* in ChangeLog
diff --git a/ChangeLog b/ChangeLog
index 1955506..d7dcf56 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2012-04-30 Petr Machata <pmachata@redhat.com>
+
+ * ltrace-elf.h (elf_get_section_named): New function.
+ (elf_get_section_covering, elf_get_section_type): Likewise.
+
2012-04-26 Petr Machata <pmachata@redhat.com>
* common.h (arch_breakpoint_init, arch_breakpoint_destroy)
diff --git a/ltrace-elf.c b/ltrace-elf.c
index 3f0c636..19f1c64 100644
--- a/ltrace-elf.c
+++ b/ltrace-elf.c
@@ -143,6 +143,33 @@
&type_p, &type);
}
+struct section_named_data {
+ struct ltelf *lte;
+ const char *name;
+};
+
+static int
+name_p(Elf_Scn *scn, GElf_Shdr *shdr, void *d)
+{
+ struct section_named_data *data = d;
+ const char *name = elf_strptr(data->lte->elf,
+ data->lte->ehdr.e_shstrndx,
+ shdr->sh_name);
+ return strcmp(name, data->name) == 0;
+}
+
+int
+elf_get_section_named(struct ltelf *lte, const char *name,
+ Elf_Scn **tgt_sec, GElf_Shdr *tgt_shdr)
+{
+ struct section_named_data data = {
+ .lte = lte,
+ .name = name,
+ };
+ return elf_get_section_if(lte, tgt_sec, tgt_shdr,
+ &name_p, &data);
+}
+
static int
need_data(Elf_Data *data, GElf_Xword offset, GElf_Xword size)
{
diff --git a/ltrace-elf.h b/ltrace-elf.h
index 54a5386..64d1cb8 100644
--- a/ltrace-elf.h
+++ b/ltrace-elf.h
@@ -63,6 +63,8 @@
Elf_Scn **tgt_sec, GElf_Shdr *tgt_shdr);
int elf_get_section_type(struct ltelf *lte, GElf_Word type,
Elf_Scn **tgt_sec, GElf_Shdr *tgt_shdr);
+int elf_get_section_named(struct ltelf *lte, const char *name,
+ Elf_Scn **tgt_sec, GElf_Shdr *tgt_shdr);
/* Read, respectively, 2, 4, or 8 bytes from Elf data at given OFFSET,
* and store it in *RETP. Returns 0 on success or a negative value if