pahole: Allow --compile to work with DWARF in addition to with BTF
The recent changes allow for that.
Generating a type in openvswitch and all it needs, recursively, from the
DWARF info for that project, then printing it out from the compileable
pahole output does a full circle and gets us back with the types pahole
generated from DWARF:
$ pahole -C ovsrec_ssl --compile /usr/lib/debug/.dwz/openvswitch-2.17.0-3.fc36.x86_64 > ovs.c ; echo "static struct ovsrec_ssl foo;" >> ovs.c ; gcc -g -c ovs.c
$ file ovs.o
ovs.o: ELF 64-bit LSB relocatable, x86-64, version 1 (SYSV), with debug_info, not stripped
$ pahole ovs.o
struct hmap_node {
size_t hash; /* 0 8 */
struct hmap_node * next; /* 8 8 */
/* size: 16, cachelines: 1, members: 2 */
/* last cacheline: 16 bytes */
};
struct uuid {
uint32_t parts[4]; /* 0 16 */
/* size: 16, cachelines: 1, members: 1 */
/* last cacheline: 16 bytes */
};
struct ovs_list {
struct ovs_list * prev; /* 0 8 */
struct ovs_list * next; /* 8 8 */
/* size: 16, cachelines: 1, members: 2 */
/* last cacheline: 16 bytes */
};
struct ovsdb_idl_row {
struct hmap_node hmap_node; /* 0 16 */
struct uuid uuid; /* 16 16 */
struct ovs_list src_arcs; /* 32 16 */
struct ovs_list dst_arcs; /* 48 16 */
/* --- cacheline 1 boundary (64 bytes) --- */
struct ovsdb_idl_table * table; /* 64 8 */
struct ovsdb_datum * old_datum; /* 72 8 */
_Bool parsed; /* 80 1 */
/* XXX 7 bytes hole, try to pack */
struct ovs_list reparse_node; /* 88 16 */
struct ovsdb_datum * new_datum; /* 104 8 */
long unsigned int * prereqs; /* 112 8 */
long unsigned int * written; /* 120 8 */
/* --- cacheline 2 boundary (128 bytes) --- */
struct hmap_node txn_node; /* 128 16 */
long unsigned int * map_op_written; /* 144 8 */
struct map_op_list * * map_op_lists; /* 152 8 */
long unsigned int * set_op_written; /* 160 8 */
struct set_op_list * * set_op_lists; /* 168 8 */
unsigned int change_seqno[3]; /* 176 12 */
/* XXX 4 bytes hole, try to pack */
/* --- cacheline 3 boundary (192 bytes) --- */
struct ovs_list track_node; /* 192 16 */
long unsigned int * updated; /* 208 8 */
struct ovsdb_datum * tracked_old_datum; /* 216 8 */
/* size: 224, cachelines: 4, members: 20 */
/* sum members: 213, holes: 2, sum holes: 11 */
/* last cacheline: 32 bytes */
};
struct hmap {
struct hmap_node * * buckets; /* 0 8 */
struct hmap_node * one; /* 8 8 */
size_t mask; /* 16 8 */
size_t n; /* 24 8 */
/* size: 32, cachelines: 1, members: 4 */
/* last cacheline: 32 bytes */
};
struct smap {
struct hmap map; /* 0 32 */
/* size: 32, cachelines: 1, members: 1 */
/* last cacheline: 32 bytes */
};
struct ovsrec_ssl {
struct ovsdb_idl_row header_; /* 0 224 */
/* --- cacheline 3 boundary (192 bytes) was 32 bytes ago --- */
_Bool bootstrap_ca_cert; /* 224 1 */
/* XXX 7 bytes hole, try to pack */
char * ca_cert; /* 232 8 */
char * certificate; /* 240 8 */
struct smap external_ids; /* 248 32 */
/* --- cacheline 4 boundary (256 bytes) was 24 bytes ago --- */
char * private_key; /* 280 8 */
/* size: 288, cachelines: 5, members: 6 */
/* sum members: 281, holes: 1, sum holes: 7 */
/* last cacheline: 32 bytes */
};
$
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 file changed
