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libctf: Add iteration over non-root types

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The existing function ctf_type_iter lets you iterate over root-visible
types (types you can look up by name).  There is no way to iterate over
non-root-visible types, which is troublesome because both the linker
and dumper want to do that.

So add a new function that can do it: the callback it takes accepts
an extra parameter which indicates whether the type is root-visible
or not.

include/
	* ctf-api.h (ctf_type_all_f): New.
	(ctf_type_iter_all): New.

libctf/
	* ctf_types.c (ctf_type_iter_all): New.
This commit is contained in:
Nick Alcock
2019-07-13 20:00:07 +01:00
parent 6b88d7d70c
commit 0ac6231298
4 changed files with 32 additions and 0 deletions
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5
include/ChangeLog
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@@ -1,3 +1,8 @@
2019-07-13 Nick Alcock <nick.alcock@oracle.com>
* ctf-api.h (ctf_type_all_f): New.
(ctf_type_iter_all): New.
2019-07-11 Nick Alcock <nick.alcock@oracle.com> 2019-07-11 Nick Alcock <nick.alcock@oracle.com>
* ctf.h: Add object index and function index sections. Describe * ctf.h: Add object index and function index sections. Describe

2
include/ctf-api.h
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@@ -211,6 +211,7 @@ typedef int ctf_member_f (const char *name, ctf_id_t membtype,
typedef int ctf_enum_f (const char *name, int val, void *arg); typedef int ctf_enum_f (const char *name, int val, void *arg);
typedef int ctf_variable_f (const char *name, ctf_id_t type, void *arg); typedef int ctf_variable_f (const char *name, ctf_id_t type, void *arg);
typedef int ctf_type_f (ctf_id_t type, void *arg); typedef int ctf_type_f (ctf_id_t type, void *arg);
typedef int ctf_type_all_f (ctf_id_t type, int flag, void *arg);
typedef int ctf_label_f (const char *name, const ctf_lblinfo_t *info, typedef int ctf_label_f (const char *name, const ctf_lblinfo_t *info,
void *arg); void *arg);
typedef int ctf_archive_member_f (ctf_file_t *fp, const char *name, void *arg); typedef int ctf_archive_member_f (ctf_file_t *fp, const char *name, void *arg);
@@ -317,6 +318,7 @@ extern int ctf_label_info (ctf_file_t *, const char *, ctf_lblinfo_t *);
extern int ctf_member_iter (ctf_file_t *, ctf_id_t, ctf_member_f *, void *); extern int ctf_member_iter (ctf_file_t *, ctf_id_t, ctf_member_f *, void *);
extern int ctf_enum_iter (ctf_file_t *, ctf_id_t, ctf_enum_f *, void *); extern int ctf_enum_iter (ctf_file_t *, ctf_id_t, ctf_enum_f *, void *);
extern int ctf_type_iter (ctf_file_t *, ctf_type_f *, void *); extern int ctf_type_iter (ctf_file_t *, ctf_type_f *, void *);
extern int ctf_type_iter_all (ctf_file_t *, ctf_type_all_f *, void *);
extern int ctf_label_iter (ctf_file_t *, ctf_label_f *, void *); extern int ctf_label_iter (ctf_file_t *, ctf_label_f *, void *);
extern int ctf_variable_iter (ctf_file_t *, ctf_variable_f *, void *); extern int ctf_variable_iter (ctf_file_t *, ctf_variable_f *, void *);
extern int ctf_archive_iter (const ctf_archive_t *, ctf_archive_member_f *, extern int ctf_archive_iter (const ctf_archive_t *, ctf_archive_member_f *,

4
libctf/ChangeLog
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@@ -1,3 +1,7 @@
2019-07-13 Nick Alcock <nick.alcock@oracle.com>
* ctf_types.c (ctf_type_iter_all): New.
2019-07-13 Nick Alcock <nick.alcock@oracle.com> 2019-07-13 Nick Alcock <nick.alcock@oracle.com>
* ctf-open.c (init_symtab): Check for overflow against the right * ctf-open.c (init_symtab): Check for overflow against the right

21
libctf/ctf-types.c
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@@ -144,6 +144,27 @@ ctf_type_iter (ctf_file_t *fp, ctf_type_f *func, void *arg)
return 0; return 0;
} }
/* Iterate over every type in the given CTF container, user-visible or not.
We pass the type ID of each type to the specified callback function. */
int
ctf_type_iter_all (ctf_file_t *fp, ctf_type_all_f *func, void *arg)
{
ctf_id_t id, max = fp->ctf_typemax;
int rc, child = (fp->ctf_flags & LCTF_CHILD);
for (id = 1; id <= max; id++)
{
const ctf_type_t *tp = LCTF_INDEX_TO_TYPEPTR (fp, id);
if ((rc = func (LCTF_INDEX_TO_TYPE (fp, id, child),
LCTF_INFO_ISROOT(fp, tp->ctt_info)
? CTF_ADD_ROOT : CTF_ADD_NONROOT, arg) != 0))
return rc;
}
return 0;
}
/* Iterate over every variable in the given CTF container, in arbitrary order. /* Iterate over every variable in the given CTF container, in arbitrary order.
We pass the name of each variable to the specified callback function. */ We pass the name of each variable to the specified callback function. */