diff options
Diffstat (limited to 'usr/src/cmd/mdb/common/modules/genunix/findstack.c')
| -rw-r--r-- | usr/src/cmd/mdb/common/modules/genunix/findstack.c | 91 |
1 files changed, 89 insertions, 2 deletions
diff --git a/usr/src/cmd/mdb/common/modules/genunix/findstack.c b/usr/src/cmd/mdb/common/modules/genunix/findstack.c index 7c7a2fa7cb..c4bc978592 100644 --- a/usr/src/cmd/mdb/common/modules/genunix/findstack.c +++ b/usr/src/cmd/mdb/common/modules/genunix/findstack.c @@ -30,6 +30,7 @@ #include <sys/regset.h> #include <sys/stack.h> #include <sys/thread.h> +#include <sys/modctl.h> #include "findstack.h" #include "thread.h" @@ -775,6 +776,65 @@ stacks_has_caller(stacks_entry_t *sep, uintptr_t addr) return (0); } +typedef struct find_module_struct { + struct modctl *mcp; + const char *name; +} find_module_struct_t; + +int +find_module_cb(uintptr_t addr, const void *modctl_arg, void *cbarg) +{ + find_module_struct_t *sp = cbarg; + char mod_modname[MODMAXNAMELEN + 1]; + const struct modctl *mp = modctl_arg; + + if (!mp->mod_modname) + return (WALK_NEXT); + + if (mdb_readstr(mod_modname, sizeof (mod_modname), + (uintptr_t)mp->mod_modname) == -1) { + mdb_warn("failed to read mod_modname in \"modctl\" walk"); + return (WALK_ERR); + } + + if (strcmp(sp->name, mod_modname)) + return (WALK_NEXT); + + sp->mcp = mdb_alloc(sizeof (*sp->mcp), UM_SLEEP | UM_GC); + bcopy(mp, sp->mcp, sizeof (*sp->mcp)); + return (WALK_DONE); +} + +static struct modctl * +find_module(const char *name) +{ + find_module_struct_t mptr; + + mptr.name = name; + mptr.mcp = NULL; + + if (mdb_walk("modctl", find_module_cb, &mptr) != 0) + mdb_warn("cannot walk \"modctl\""); + return (mptr.mcp); +} + +static int +stacks_has_module(stacks_entry_t *sep, struct modctl *mp) +{ + int idx; + + if (mp == NULL) + return (0); + + for (idx = 0; idx < sep->se_depth; idx++) + if (sep->se_stack[idx] >= (uintptr_t)mp->mod_text && + sep->se_stack[idx] < + ((uintptr_t)mp->mod_text + mp->mod_text_size)) + return (1); + return (0); +} + + static int uintptrcomp(const void *lp, const void *rp) { @@ -854,6 +914,11 @@ stacks_help(void) " Only print threads whose stacks contain func/func+offset.\n" " -C func[+offset]\n" " Only print threads whose stacks do not contain func/func+offset.\n" +" -m module\n" +" Only print threads whose stacks contain functions from module.\n" +" -M module\n" +" Only print threads whose stacks do not contain functions from\n" +" module.\n" " -s {type | ALL}\n" " Only print threads which are on a 'type' synchronization object\n" " (SOBJ).\n" @@ -883,6 +948,9 @@ stacks(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) const char *caller_str = NULL; const char *excl_caller_str = NULL; uintptr_t caller = 0, excl_caller = 0; + const char *module_str = NULL; + const char *excl_module_str = NULL; + struct modctl *module = NULL, *excl_module = NULL; const char *sobj = NULL; const char *excl_sobj = NULL; uintptr_t sobj_ops = 0, excl_sobj_ops = 0; @@ -917,6 +985,8 @@ stacks(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) 'v', MDB_OPT_SETBITS, TRUE, &verbose, 'c', MDB_OPT_STR, &caller_str, 'C', MDB_OPT_STR, &excl_caller_str, + 'm', MDB_OPT_STR, &module_str, + 'M', MDB_OPT_STR, &excl_module_str, 's', MDB_OPT_STR, &sobj, 'S', MDB_OPT_STR, &excl_sobj, 't', MDB_OPT_STR, &tstate_str, @@ -956,6 +1026,18 @@ stacks(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) } mdb_set_dot(addr); + if (module_str != NULL && + (module = find_module(module_str)) == NULL) { + mdb_warn("stacks: module \"%s\" is unknown", module_str); + return (DCMD_ABORT); + } + + if (excl_module_str != NULL && + (excl_module = find_module(excl_module_str)) == NULL) { + mdb_warn("stacks: module \"%s\" is unknown", excl_module_str); + return (DCMD_ABORT); + } + if (sobj != NULL && text_to_sobj(sobj, &sobj_ops) != 0) return (DCMD_USAGE); @@ -969,10 +1051,11 @@ stacks(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) return (DCMD_USAGE); } - if (tstate_str && + if (tstate_str != NULL && text_to_tstate(tstate_str, &tstate) != 0) return (DCMD_USAGE); - if (excl_tstate_str && + + if (excl_tstate_str != NULL && text_to_tstate(excl_tstate_str, &excl_tstate) != 0) return (DCMD_USAGE); @@ -1077,6 +1160,10 @@ stacks(uintptr_t addr, uint_t flags, int argc, const mdb_arg_t *argv) continue; if (excl_caller != 0 && stacks_has_caller(sep, excl_caller)) continue; + if (module != 0 && !stacks_has_module(sep, module)) + continue; + if (excl_module != 0 && stacks_has_module(sep, excl_module)) + continue; if (tstate != -1U) { if (tstate == TSTATE_PANIC) { |