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libctf: eliminate dtd_u, part 3: functions

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One more member vanishes from the dtd_u, leaving only the member for
struct/union/enum members.

There's not much to do here, since as of commit afd78bd6f0a30ba5 we use
the same representation (type sizes, etc) in the dtu_argv as we will
use in the final vlen, with one exception: the vlen has alignment
padding, and the dtu_argv did not.  Simplify things by adding suitable
padding in both cases.

libctf/ChangeLog
2021-03-18  Nick Alcock  <nick.alcock@oracle.com>

	* ctf-impl.h (ctf_dtdef_t) <dtd_u.dtu_argv>: Remove.
	* ctf-create.c (ctf_dtd_delete): No longer free it.
	(ctf_add_function): Use the dtd_vlen, not dtu_argv.  Properly align.
	* ctf-serialize.c (ctf_emit_type_sect): Just copy the dtd_vlen.
	* ctf-types.c (ctf_func_type_info): Just use the vlen.
	(ctf_func_type_args): Likewise.
This commit is contained in:
Nick Alcock
2021-03-18 12:37:52 +00:00
parent 534444b1ee
commit 81982d20fa
5 changed files with 28 additions and 35 deletions
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4
libctf/ctf-types.c
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@ -1678,7 +1678,7 @@ ctf_func_type_info (ctf_dict_t *fp, ctf_id_t type, ctf_funcinfo_t *fip)
if ((dtd = ctf_dynamic_type (fp, type)) == NULL)
args = (uint32_t *) ((uintptr_t) tp + increment);
else
args = dtd->dtd_u.dtu_argv;
args = (uint32_t *) dtd->dtd_vlen;
if (fip->ctc_argc != 0 && args[fip->ctc_argc - 1] == 0)
{
@ -1715,7 +1715,7 @@ ctf_func_type_args (ctf_dict_t *fp, ctf_id_t type, uint32_t argc, ctf_id_t *argv
if ((dtd = ctf_dynamic_type (fp, type)) == NULL)
args = (uint32_t *) ((uintptr_t) tp + increment);
else
args = dtd->dtd_u.dtu_argv;
args = (uint32_t *) dtd->dtd_vlen;
for (argc = MIN (argc, f.ctc_argc); argc != 0; argc--)
*argv++ = *args++;