diff options
Diffstat (limited to 'erts/etc/unix/etp-commands.in')
| -rw-r--r-- | erts/etc/unix/etp-commands.in | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in index 9ed887c3d4..f440b6a882 100644 --- a/erts/etc/unix/etp-commands.in +++ b/erts/etc/unix/etp-commands.in @@ -646,6 +646,67 @@ define etp-atom-1 end +define etp-string-to-atom +# Args: (char*) null-terminated +# +# Non-reentrant + + set $etp_i = 0 + set $etp_h = ((UWord)0) + while (($arg0)[$etp_i]) != 0 + set $etp_c = (unsigned char)(($arg0)[$etp_i]) + + if $etp_c & 0x80 + printf "Non ASCII atoms not implemented\n" + loop_break + end + + set $etp_h = ($etp_h << 4) + $etp_c + set $etp_g = $etp_h & 0xf0000000 + if $etp_g != 0 + set $etp_h ^= ($etp_g >> 24) + set $etp_h ^= $etp_g + end + set $etp_i++ + end + + # hash_get_slot + set $etp_h ^= $etp_h >> erts_atom_table.htable.shift + if $etp_arch64 + set $etp_h = (11400714819323198485UL * $etp_h) >> erts_atom_table.htable.shift + else + set $etp_h = (2654435769UL * $etp_h) >> erts_atom_table.htable.shift + end + set $etp_p = (Atom*)erts_atom_table.htable.bucket[$etp_h] + + # search hash bucket list + while $etp_p + set $etp_i = 0 + while $etp_i < $etp_p->len && ($arg0)[$etp_i] + if $etp_p->name[$etp_i] != ($arg0)[$etp_i] + loop_break + end + set $etp_i++ + end + if $etp_i == $etp_p->len && ($arg0)[$etp_i] == 0 + loop_break + end + set $etp_p = (Atom*)$etp_p->slot.bucket.next + end + if $etp_p + print ($etp_p->slot.index << 6) | (2 << 2) | 3 + else + printf "Can't find atom\n" + end +end + +document etp-string-to-atom +%---------------------------------------- +% etp-string-to-atom (char*) +% +% Ex: etp-string-to-atom "erlang" +%---------------------------------------- +end define etp-char-1 # Args: int char, int quote_char @@ -1093,6 +1154,92 @@ document etp-mfa %--------------------------------------------------------------------------- end +define etp-export-get + # Args: Eterm Eterm Uint + + set $etp_h = (((Eterm)$arg0 >> 6) * ((Eterm)$arg1 >> 6)) ^ (Uint)$arg2 + + #hash_get_slot + set $etp_t = &export_tables[the_active_code_index.counter].htable + set $etp_h ^= $etp_h >> $etp_t->shift + if $etp_arch64 + set $etp_h = (11400714819323198485UL * $etp_h) >> $etp_t->shift + else + set $etp_h = (2654435769UL * $etp_h) >> $etp_t->shift + end + + set $etp_p = (struct export_entry*) $etp_t->bucket[$etp_h] + while $etp_p + if $etp_p->ep->info.mfa.module == $arg0 && $etp_p->ep->info.mfa.function == $arg1 && $etp_p->ep->info.mfa.arity == $arg2 + loop_break + end + set $etp_p = (struct export_entry*) $etp_p->slot.bucket.next + end + if $etp_p + print $etp_p->ep + else + printf "Can't find export entry\n" + end +end + +document etp-export-get +%--------------------------------------------------------- +% etp-export-get module function arity +% +% Lookup and print pointer to Export entry. +% Example: +% (gdb) etp-string-to-atom "erlang" +% $1 = 13323 +% (gdb) etp-string-to-atom "self" +% $2 = 47115 +% (gdb) etp-export-get 13323 47115 0 +% $3 = (Export *) 0x7f53caf1f358 +%--------------------------------------------------------- +end + +define etp-module-get + # Args: Eterm + + set $etp_ix = ((Eterm)$arg0 >> 6) + set $etp_h = $etp_ix + + #hash_get_slot + set $etp_t = &module_tables[the_active_code_index.counter].htable + set $etp_h ^= $etp_h >> $etp_t->shift + if $etp_arch64 + set $etp_h = (11400714819323198485UL * $etp_h) >> $etp_t->shift + else + set $etp_h = (2654435769UL * $etp_h) >> $etp_t->shift + end + + set $etp_p = (Module*) $etp_t->bucket[$etp_h] + while $etp_p + if $etp_p->module == $etp_ix + loop_break + end + set $etp_p = (Module*) $etp_p->slot.bucket.next + end + if $etp_p + print $etp_p + else + printf "Can't find module entry\n" + end +end + +document etp-module-get +%--------------------------------------------------------- +% etp-module-get module +% +% Lookup and print pointer to Module entry. +% Example: +% (gdb) etp-string-to-atom "erlang" +% $1 = 13323 +% (gdb) etp-module-get 13323 +% $2 = (Module *) 0x7f53caf1f358 +%--------------------------------------------------------- +end + + define etp-cp-func-info-1 # Args: Eterm cp # |