diff options
Diffstat (limited to 'usr/src/common/ctf/ctf_util.c')
| -rw-r--r-- | usr/src/common/ctf/ctf_util.c | 43 |
1 files changed, 41 insertions, 2 deletions
diff --git a/usr/src/common/ctf/ctf_util.c b/usr/src/common/ctf/ctf_util.c index 740d403e8c..550195b5e1 100644 --- a/usr/src/common/ctf/ctf_util.c +++ b/usr/src/common/ctf/ctf_util.c @@ -23,10 +23,12 @@ * Copyright 2005 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ - -#pragma ident "%Z%%M% %I% %E% SMI" +/* + * Copyright (c) 2015, Joyent, Inc. + */ #include <ctf_impl.h> +#include <sys/debug.h> /* * Simple doubly-linked list append routine. This implementation assumes that @@ -71,6 +73,24 @@ ctf_list_prepend(ctf_list_t *lp, void *new) lp->l_prev = p; } +void +ctf_list_insert_before(ctf_list_t *head, void *item, void *nitem) +{ + ctf_list_t *lp = item; + ctf_list_t *new = nitem; + ctf_list_t *prev = lp->l_prev; + + lp->l_prev = new; + new->l_next = lp; + new->l_prev = prev; + if (prev != NULL) { + prev->l_next = new; + } else { + ASSERT(head->l_next == lp); + head->l_next = new; + } +} + /* * Delete the specified existing element from the given ctf_list_t. The * existing pointer should be pointing at a struct with embedded ctf_list_t. @@ -150,3 +170,22 @@ ctf_set_errno(ctf_file_t *fp, int err) fp->ctf_errno = err; return (CTF_ERR); } + +boolean_t +ctf_sym_valid(uintptr_t strbase, int type, uint16_t shndx, uint64_t val, + uint32_t noff) +{ + const char *name; + + if (type != STT_OBJECT && type != STT_FUNC) + return (B_FALSE); + if (shndx == SHN_UNDEF || noff == 0) + return (B_FALSE); + if (type == STT_OBJECT && shndx == SHN_ABS && val == 0) + return (B_FALSE); + name = (char *)(strbase + noff); + if (strcmp(name, "_START_") == 0 || strcmp(name, "_END_") == 0) + return (B_FALSE); + + return (B_TRUE); +} |