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diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_sugar.c b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_sugar.c
--- a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_sugar.c
+++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_sugar.c
@@ -67,15 +67,6 @@
#include <dis_tables.h>
-typedef struct dt_sugar_parse {
- dtrace_hdl_t *dtsp_dtp; /* dtrace handle */
- dt_node_t *dtsp_pdescs; /* probe descriptions */
- int dtsp_num_conditions; /* number of condition variables */
- int dtsp_num_ifs; /* number of "if" statements */
- int dtsp_kinst; /* specify if the provider is kinst */
- dt_node_t *dtsp_clause_list; /* list of clauses */
-} dt_sugar_parse_t;
-
/* kinst-related */
struct elf_info {
Elf *elf;
@@ -98,19 +89,27 @@
TAILQ_ENTRY(entry) next;
};
+typedef struct dt_sugar_parse {
+ dtrace_hdl_t *dtsp_dtp; /* dtrace handle */
+ dt_node_t *dtsp_pdescs; /* probe descriptions */
+ int dtsp_num_conditions; /* number of condition variables */
+ int dtsp_num_ifs; /* number of "if" statements */
+ int dtsp_kinst; /* specify if the provider is kinst */
+ dt_node_t *dtsp_clause_list; /* list of clauses */
+ struct elf_info dtsp_elf_kern; /* ELF info of the kernel executable */
+ struct elf_info dtsp_elf_dbg; /* ELF info of the kernel debug file */
+ dtrace_probedesc_t *dtsp_desc; /* kinst pdesc to duplicate contents */
+ Dwarf_Off dtsp_dieoff; /* DIE offset of kinst inline definition */
+ int dtsp_inline; /* kinst probe function is inline */
+ int dtsp_entry_or_return; /* kinst probe is entry or return */
+ TAILQ_HEAD(, entry) dtsp_head; /* kinst inline copy entry TAILQ */
+} dt_sugar_parse_t;
+
enum {
F_SUBPROGRAM,
F_INLINE_COPY,
};
-static struct elf_info ei_kern;
-static struct elf_info ei_dbg;
-static dtrace_probedesc_t *desc;
-static Dwarf_Off g_dieoff;
-static int f_inline = 0;
-static int f_entry_or_return = 0;
-static TAILQ_HEAD(, entry) head = TAILQ_HEAD_INITIALIZER(head);
-
static void dt_sugar_visit_stmts(dt_sugar_parse_t *, dt_node_t *, int);
/*
@@ -316,8 +315,8 @@
* inside of.
*/
static void
-dt_sugar_kinst_find_caller_func(struct off *off, uint64_t addr_lo,
- uint64_t addr_hi)
+dt_sugar_kinst_find_caller_func(dt_sugar_parse_t *dp, struct off *off,
+ uint64_t addr_lo, uint64_t addr_hi)
{
Elf_Data *d;
GElf_Sym sym;
@@ -330,11 +329,11 @@
/* Find the caller function's boundaries and name. */
off->func = NULL;
- for (i = 1; i < ei_kern.shnum; i++) {
- s = &ei_kern.sl[i];
+ for (i = 1; i < dp->dtsp_elf_kern.shnum; i++) {
+ s = &dp->dtsp_elf_kern.sl[i];
if (s->sh.sh_type != SHT_SYMTAB && s->sh.sh_type != SHT_DYNSYM)
continue;
- if (s->sh.sh_link >= ei_kern.shnum)
+ if (s->sh.sh_link >= dp->dtsp_elf_kern.shnum)
continue;
stab = s->sh.sh_link;
(void)elf_errno();
@@ -361,21 +360,21 @@
hi = sym.st_value + sym.st_size;
if (addr_lo < lo || addr_hi > hi)
continue;
- if ((off->func = elf_strptr(ei_kern.elf, stab, sym.st_name))
- != NULL)
+ if ((off->func = elf_strptr(dp->dtsp_elf_kern.elf, stab,
+ sym.st_name)) != NULL)
break;
}
}
- if (strcmp(desc->dtpd_name, "entry") == 0) {
+ if (strcmp(dp->dtsp_desc->dtpd_name, "entry") == 0) {
off->val = addr_lo - lo;
return;
- } else if (strcmp(desc->dtpd_name, "return") == 0)
+ } else if (strcmp(dp->dtsp_desc->dtpd_name, "return") == 0)
; /* nothing */
/* Find inline copy's return offset. */
- for (i = 1; i < ei_kern.shnum; i++) {
- s = &ei_kern.sl[i];
+ for (i = 1; i < dp->dtsp_elf_kern.shnum; i++) {
+ s = &dp->dtsp_elf_kern.sl[i];
if (strcmp(s->name, ".text") != 0 ||
s->sh.sh_type != SHT_PROGBITS)
continue;
@@ -424,7 +423,7 @@
* to inline copies of the probe function.
*/
static void
-dt_sugar_kinst_parse_die(dtrace_hdl_t *dtp, Dwarf_Debug dbg, Dwarf_Die die,
+dt_sugar_kinst_parse_die(dt_sugar_parse_t *dp, Dwarf_Debug dbg, Dwarf_Die die,
int level, int flag)
{
static Dwarf_Die die_root;
@@ -473,7 +472,7 @@
warnx("dt_sugar: %s", dwarf_errmsg(error));
goto cont;
}
- if (strcmp(v_str, desc->dtpd_func) != 0)
+ if (strcmp(v_str, dp->dtsp_desc->dtpd_func) != 0)
goto cont;
/*
* The function name we're searching for has an inline
@@ -494,7 +493,7 @@
}
v_off += cuoff;
/* Doesn't point to the definition's DIE offset. */
- if (v_off != g_dieoff)
+ if (v_off != dp->dtsp_dieoff)
goto cont;
if (dwarf_hasattr(die, DW_AT_ranges, &v_flag, &error) !=
@@ -529,14 +528,14 @@
}
base0 = lowpc;
- if (strcmp(desc->dtpd_name, "entry") == 0) {
+ if (strcmp(dp->dtsp_desc->dtpd_name, "entry") == 0) {
/*
* Trace the first instruction of the first
* range since this is the beginning of the
* inline copy.
*/
noff = 1;
- } else if (strcmp(desc->dtpd_name, "return") == 0) {
+ } else if (strcmp(dp->dtsp_desc->dtpd_name, "return") == 0) {
/*
* Trace the last instruction of every range in
* case the inline copy is split into multiple
@@ -544,12 +543,12 @@
*/
noff = nranges - 1;
}
- off = dt_alloc(dtp, noff * sizeof(struct off));
+ off = dt_alloc(dp->dtsp_dtp, noff * sizeof(struct off));
for (i = 0; i < noff; i++) {
rp = &ranges[i];
if (rp->dwr_type == DW_RANGES_ADDRESS_SELECTION)
base0 = rp->dwr_addr2;
- dt_sugar_kinst_find_caller_func(&off[i],
+ dt_sugar_kinst_find_caller_func(dp, &off[i],
rp->dwr_addr1 + base0,
rp->dwr_addr2 + base0);
}
@@ -567,17 +566,17 @@
goto cont;
}
noff = 1;
- off = dt_alloc(dtp, noff * sizeof(struct off));
- dt_sugar_kinst_find_caller_func(off, lowpc,
+ off = dt_alloc(dp->dtsp_dtp, noff * sizeof(struct off));
+ dt_sugar_kinst_find_caller_func(dp, off, lowpc,
lowpc + highpc);
}
} else
goto cont;
- e = dt_alloc(dtp, sizeof(struct entry));
+ e = dt_alloc(dp->dtsp_dtp, sizeof(struct entry));
e->noff = noff;
e->off = off;
- TAILQ_INSERT_TAIL(&head, e, next);
+ TAILQ_INSERT_TAIL(&dp->dtsp_head, e, next);
cont:
/*
* Inline copies might appear before the declaration, so we need to
@@ -603,22 +602,22 @@
* to determine if the inline copy's DW_AT_abstract_origin
* points to it.
*/
- g_dieoff = dieoff;
+ dp->dtsp_dieoff = dieoff;
+ dp->dtsp_inline = 1;
flag = F_INLINE_COPY;
- f_inline = 1;
}
res = dwarf_child(die, &die_next, &error);
if (res == DW_DLV_ERROR)
warnx("dt_sugar: %s", dwarf_errmsg(error));
else if (res == DW_DLV_OK)
- dt_sugar_kinst_parse_die(dtp, dbg, die_next, level + 1, flag);
+ dt_sugar_kinst_parse_die(dp, dbg, die_next, level + 1, flag);
res = dwarf_siblingof(dbg, die, &die_next, &error);
if (res == DW_DLV_ERROR)
warnx("dt_sugar: %s", dwarf_errmsg(error));
else if (res == DW_DLV_OK)
- dt_sugar_kinst_parse_die(dtp, dbg, die_next, level, flag);
+ dt_sugar_kinst_parse_die(dp, dbg, die_next, level, flag);
/*
* Deallocating on level 0 will attempt to double-free, since die_root
@@ -681,9 +680,9 @@
}
/* Clean up as well */
- while (!TAILQ_EMPTY(&head)) {
- e = TAILQ_FIRST(&head);
- TAILQ_REMOVE(&head, e, next);
+ while (!TAILQ_EMPTY(&dp->dtsp_head)) {
+ e = TAILQ_FIRST(&dp->dtsp_head);
+ TAILQ_REMOVE(&dp->dtsp_head, e, next);
for (i = 0; i < e->noff; i++) {
if (j++ == 0) {
/*
@@ -700,8 +699,8 @@
* the very first inline copy's information.
*/
snprintf(buf, sizeof(buf), "%lu", e->off[i].val);
- strcpy(desc->dtpd_func, e->off[i].func);
- strcpy(desc->dtpd_name, buf);
+ strcpy(dp->dtsp_desc->dtpd_func, e->off[i].func);
+ strcpy(dp->dtsp_desc->dtpd_name, buf);
} else {
/*
* Create new clauses for each inline copy with
@@ -709,8 +708,8 @@
* actions.
*/
snprintf(buf, sizeof(buf), "%s:%s:%s:%lu",
- desc->dtpd_provider,
- desc->dtpd_mod,
+ dp->dtsp_desc->dtpd_provider,
+ dp->dtsp_desc->dtpd_mod,
e->off[i].func, e->off[i].val);
pdesc = dt_node_pdesc_by_name(strdup(buf));
@@ -739,20 +738,27 @@
int res = DW_DLV_OK;
/* We only make entry and return probes for inline functions. */
- if (strcmp(desc->dtpd_name, "entry") != 0 &&
- strcmp(desc->dtpd_name, "return") != 0)
+ if (strcmp(dp->dtsp_desc->dtpd_name, "entry") != 0 &&
+ strcmp(dp->dtsp_desc->dtpd_name, "return") != 0)
return;
- f_entry_or_return = 1;
-
- dt_sugar_elf_init(&ei_kern, "/boot/kernel/kernel");
- dt_sugar_elf_init(&ei_dbg, "/usr/lib/debug/boot/kernel/kernel.debug");
+ /*
+ * TODO
+ * - Fetch the boot file name from `sysctl kern.bootfile`.
+ * - The debug file should be in /usr/lib/debug/${bootfiledir} or in
+ * ${bootfiledir}. Test both cases?
+ */
+ dt_sugar_elf_init(&dp->dtsp_elf_kern, "/boot/kernel/kernel");
+ dt_sugar_elf_init(&dp->dtsp_elf_dbg,
+ "/usr/lib/debug/boot/kernel/kernel.debug");
- if (dwarf_elf_init(ei_dbg.elf, DW_DLC_READ, NULL, NULL, &dbg, &error) !=
- DW_DLV_OK)
+ if (dwarf_elf_init(dp->dtsp_elf_dbg.elf, DW_DLC_READ, NULL, NULL, &dbg,
+ &error) != DW_DLV_OK)
errx(1, "dt_sugar: dwarf_elf_init(): %s", dwarf_errmsg(error));
- TAILQ_INIT(&head);
+ dp->dtsp_entry_or_return = 1;
+
+ TAILQ_INIT(&dp->dtsp_head);
/*
* Parse DWARF info for kernel.debug and create entries for the inline
* copies we'll create probes for.
@@ -763,8 +769,8 @@
die = NULL;
while (dwarf_siblingof(dbg, die, &die, &error) ==
DW_DLV_OK) {
- dt_sugar_kinst_parse_die(dp->dtsp_dtp, dbg,
- die, 0, F_SUBPROGRAM);
+ dt_sugar_kinst_parse_die(dp, dbg, die, 0,
+ F_SUBPROGRAM);
}
dwarf_dealloc(dbg, die, DW_DLA_DIE);
}
@@ -772,8 +778,8 @@
warnx("dt_sugar: %s", dwarf_errmsg(error));
} while (dwarf_next_types_section(dbg, &error) == DW_DLV_OK);
- dt_sugar_elf_deinit(&ei_kern);
- dt_sugar_elf_deinit(&ei_dbg);
+ dt_sugar_elf_deinit(&dp->dtsp_elf_kern);
+ dt_sugar_elf_deinit(&dp->dtsp_elf_dbg);
dwarf_finish(dbg, &error);
}
@@ -795,11 +801,13 @@
break;
case DT_NODE_PDESC:
- if (strcmp(dnp->dn_desc->dtpd_provider, "kinst") == 0) {
- dp->dtsp_kinst = 1;
- desc = dnp->dn_desc;
- dt_sugar_do_kinst_inline(dp, dnp);
- }
+ if (strcmp(dnp->dn_desc->dtpd_provider, "kinst") != 0)
+ break;
+ dp->dtsp_kinst = 1;
+ dp->dtsp_inline = 0;
+ dp->dtsp_entry_or_return = 0;
+ dp->dtsp_desc = dnp->dn_desc;
+ dt_sugar_do_kinst_inline(dp, dnp);
break;
case DT_NODE_IDENT:
@@ -1108,16 +1116,17 @@
}
if (dp.dtsp_kinst) {
- if (f_inline)
+ if (dp.dtsp_inline)
dt_sugar_kinst_create_probes(&dp, clause);
- else if (!f_inline && f_entry_or_return) {
+ else if (!dp.dtsp_inline && dp.dtsp_entry_or_return) {
/*
* Delegate non-inline function probes to FBT so that
* we don't duplicate FBT code in kinst.
*/
- strlcpy(desc->dtpd_provider, "fbt",
- sizeof(desc->dtpd_provider));
+ strlcpy(dp.dtsp_desc->dtpd_provider, "fbt",
+ sizeof(dp.dtsp_desc->dtpd_provider));
}
+ /* Regular kinst probes are not affected. */
}
if (dp.dtsp_clause_list != NULL &&
diff --git a/cddl/lib/libdtrace/Makefile b/cddl/lib/libdtrace/Makefile
--- a/cddl/lib/libdtrace/Makefile
+++ b/cddl/lib/libdtrace/Makefile
@@ -128,7 +128,7 @@
YFLAGS+=-d
-LIBADD= ctf elf proc pthread rtld_db dwarf elf
+LIBADD= ctf dwarf elf proc pthread rtld_db
CLEANFILES= dt_errtags.c dt_names.c
diff --git a/share/mk/src.libnames.mk b/share/mk/src.libnames.mk
--- a/share/mk/src.libnames.mk
+++ b/share/mk/src.libnames.mk
@@ -384,7 +384,7 @@
_DP_vmmapi= util
_DP_opencsd= cxxrt
_DP_ctf= spl z
-_DP_dtrace= ctf elf proc pthread rtld_db dwarf elf
+_DP_dtrace= ctf dwarf elf proc pthread rtld_db
_DP_xo= util
_DP_ztest= geom m nvpair umem zpool pthread avl zfs_core spl zutil zfs uutil icp
# The libc dependencies are not strictly needed but are defined to make the

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