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btf: add BTF_KIND_FUNC traversal function.

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The patch adds a traversal function to traverse all BTF_KIND_FUNC nodes
with a callback function. Used for .BTF.ext section content creation.

gcc/ChangeLog:

	* btfout.cc (output_btf_func_types): Use FOR_EACH_VEC_ELT.
	(traverse_btf_func_types): Define function.
	* ctfc.h (funcs_traverse_callback): Typedef for function
	prototype.
	(traverse_btf_func_types): Add prototype.
This commit is contained in:
Cupertino Miranda 2024-02-12 17:36:21 +00:00
parent 0198cade5a
commit 69a3ce49bd
2 changed files with 23 additions and 2 deletions
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22
gcc/btfout.cc
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@ -1276,8 +1276,10 @@ output_btf_types (ctf_container_ref ctfc)
static void
output_btf_func_types (ctf_container_ref ctfc)
{
for (size_t i = 0; i < vec_safe_length (funcs); i++)
btf_asm_func_type (ctfc, (*funcs)[i], i);
ctf_dtdef_ref ref;
unsigned i;
FOR_EACH_VEC_ELT (*funcs, i, ref)
btf_asm_func_type (ctfc, ref, i);
}
/* Output all BTF_KIND_DATASEC records. */
@ -1452,4 +1454,20 @@ btf_finalize (void)
tu_ctfc = NULL;
}
/* Traversal function for all BTF_KIND_FUNC type records. */
bool
traverse_btf_func_types (funcs_traverse_callback callback, void *data)
{
ctf_dtdef_ref ref;
unsigned i;
FOR_EACH_VEC_ELT (*funcs, i, ref)
{
bool stop = callback (ref, data);
if (stop == true)
return true;
}
return false;
}
#include "gt-btfout.h"

3
gcc/ctfc.h
View File

@ -441,6 +441,9 @@ extern int ctf_add_variable (ctf_container_ref, const char *, ctf_id_t,
extern ctf_id_t ctf_lookup_tree_type (ctf_container_ref, const tree);
extern ctf_id_t get_btf_id (ctf_id_t);
typedef bool (*funcs_traverse_callback) (ctf_dtdef_ref, void *);
bool traverse_btf_func_types (funcs_traverse_callback, void *);
/* CTF section does not emit location information; at this time, location
information is needed for BTF CO-RE use-cases. */