diff options
Diffstat (limited to 'erts/etc/unix')
| -rw-r--r-- | erts/etc/unix/cerl.src | 7 | ||||
| -rw-r--r-- | erts/etc/unix/etp-commands.in | 844 | ||||
| -rw-r--r-- | erts/etc/unix/run_erl.c | 605 | ||||
| -rw-r--r-- | erts/etc/unix/run_erl.h | 30 | ||||
| -rw-r--r-- | erts/etc/unix/safe_string.c | 123 | ||||
| -rw-r--r-- | erts/etc/unix/safe_string.h | 65 | ||||
| -rw-r--r-- | erts/etc/unix/to_erl.c | 589 |
7 files changed, 862 insertions, 1401 deletions
diff --git a/erts/etc/unix/cerl.src b/erts/etc/unix/cerl.src index be8343e87e..78fefbea55 100644 --- a/erts/etc/unix/cerl.src +++ b/erts/etc/unix/cerl.src @@ -86,6 +86,7 @@ run_valgrind=no # Default rootdir ROOTDIR=%SRC_ROOTDIR% BINDIR="$ROOTDIR/bin/`$ROOTDIR/erts/autoconf/config.guess`" +TARGET=%TARGET% #BINDIR="$ROOTDIR/bin/%TARGET%" PROGNAME=$ROOTDIR/bin/cerl EMU=beam @@ -248,6 +249,12 @@ while [ $# -gt 0 ]; do done +if [ ! -f $BINDIR/erlexec -a -f $ROOTDIR/bin/$TARGET/erlexec ]; then + # We are in a strange target (I'm looking at you openbsd) where + # TARGET != config.guess + BINDIR=$ROOTDIR/bin/$TARGET +fi + PATH=$BINDIR:$ROOTDIR/bin:$PATH EXEC=$BINDIR/erlexec diff --git a/erts/etc/unix/etp-commands.in b/erts/etc/unix/etp-commands.in index 54ff7b3e3a..bf6eb00314 100644 --- a/erts/etc/unix/etp-commands.in +++ b/erts/etc/unix/etp-commands.in @@ -1,7 +1,7 @@ # # %CopyrightBegin% # -# Copyright Ericsson AB 2005-2012. All Rights Reserved. +# Copyright Ericsson AB 2005-2014. All Rights Reserved. # # The contents of this file are subject to the Erlang Public License, # Version 1.1, (the "License"); you may not use this file except in @@ -54,13 +54,23 @@ document etp-help % etp-mfa, etp-cp, % etp-msgq, etpf-msgq, % etp-stacktrace, etp-stackdump, etpf-stackdump, etp-dictdump -% etp-offheapdump, etpf-offheapdump, -% etp-print-procs, etp-search-heaps, etp-search-alloc, +% etp-process-info, etp-process-memory-info +% etp-port-info, etp-port-state, etp-port-sched-flags +% etp-heapdump, etp-offheapdump, etpf-offheapdump, +% etp-search-heaps, etp-search-alloc, % etp-ets-tables, etp-ets-tabledump % % Complex commands that use the Erlang support module. % etp-overlapped-heaps, etp-chart, etp-chart-start, etp-chart-end -% +% +% System inspection +% etp-system-info, etp-schedulers, etp-process, etp-ports, etp-lc-dump, +% etp-migration-info, etp-processes-memory, +% etp-compile-info, etp-config-h-info +% +% Platform specific (when gdb fails you) +% etp-ppc-stacktrace +% % Erlang support module handling commands: % etp-run % @@ -652,7 +662,7 @@ end define etp-ct-atom-1 # Args: int # -# Determines if integer is a atom first character +# Determines if integer is an atom first character # # Non-reentrant # Returns: $etp_ct_atom @@ -1055,7 +1065,9 @@ define etp-cp-1 set $etp_cp_mid = $etp_cp_low + ($etp_cp_high-$etp_cp_low)/2 end if $etp_cp_p - set $etp_cp_low = (Eterm**)($etp_cp_p->start + 8) + # 12 = MI_FUNCTIONS + set $etp_cp_low = (Eterm**)($etp_cp_p->start + 12) + # 0 = MI_NUM_FUNCTIONS set $etp_cp_high = $etp_cp_low +$etp_cp_p->start[0] set $etp_cp_p = 0 while $etp_cp_low < $etp_cp_high @@ -1278,6 +1290,250 @@ document etpf-stackdump %--------------------------------------------------------------------------- end +define etp-heapdump +# Args: Process* +# +# Non-reentrant + etp-heapdump-1 ($arg0)->heap ($arg0)->htop +end + +document etp-heapdump +%--------------------------------------------------------------------------- +% etp-heapdump Process* +% +% Take an Process* and print a heapdump for the process heap. +%--------------------------------------------------------------------------- +end + +define etp-heapdump-old +# Args: Process* +# +# Non-reentrant + etp-heapdump-1 ($arg0)->old_heap ($arg0)->old_htop +end + +document etp-heapdump +%--------------------------------------------------------------------------- +% etp-heapdump-old Process* +% +% Take an Process* and print a heapdump for the process old heap (gen-heap). +%--------------------------------------------------------------------------- +end + + +define etp-heapdump-1 +# Args: Eterm* heap, Eterm* htop +# +# Non-reentrant + set $etp_heapdump_heap = (Eterm*)($arg0) + set $etp_heapdump_p = (Eterm*)($arg0) + set $etp_heapdump_end = (Eterm*)($arg1) + set $etp_heapdump_skips = 0 + printf "%% heapdump (%u):\n", $etp_heapdump_end-$etp_heapdump_p + while $etp_heapdump_p < $etp_heapdump_end + set $etp_heapdump_ix = 0 + printf " %p: ", $etp_heapdump_p + while $etp_heapdump_p < $etp_heapdump_end && $etp_heapdump_ix < 8 + if ($etp_heapdump_skips > 0) + printf "| 0x%08x ", ($etp_heapdump_p) + set $etp_heapdump_skips-- + else + etp-term-dump $etp_heapdump_p[0] + end + set $etp_heapdump_p++ + set $etp_heapdump_ix++ + end + printf "\n" + end +end + + +define etp-term-dump +# Args: Eterm + if (($arg0) & 0x3) == 0 + etp-term-dump-header ($arg0) + else + if (($arg0) & 0x3) == 1 + # Cons pointer + set $etp_term_dump_cons_p = ((Eterm*)(($arg0) & ~0x3)) + if $etp_term_dump_cons_p > $etp_heapdump_heap && $etp_term_dump_cons_p < $etp_heapdump_end + printf "| C:0x%08x ", $etp_term_dump_cons_p + #printf "| C: --> %5d ", $etp_heapdump_p - $etp_term_dump_cons_p - 1 + else + printf "| C:0x%08x ", $etp_term_dump_cons_p + end + else + if (($arg0) & 0x3) == 2 + # Box pointer + printf "| B:0x%08x ", ($arg0) + else + if (($arg0) & 0x3) == 3 + # immediate + etp-term-dump-immediate ($arg0) + else + printf "| U:0x%08x ", ($arg0) + end + end + end + end +end + +define etp-term-dump-immediate +# Args: immediate term + if (($arg0) & 0xF) == 0xf + # Fixnum + etp-ct-printable-1 ((long)((Sint)($arg0)>>4)) + if $etp_ct_printable + if $etp_ct_printable < 0 + printf "| I: %c (%3ld) ", (long)((Sint)($arg0)>>4), (long)((Sint)($arg0)>>4) + else + printf "| I: \\%c (%3ld) ", (long)((Sint)($arg0)>>4), (long)((Sint)($arg0)>>4) + end + else + printf "| I:%10ld ", (long)((Sint)($arg0)>>4) + end + else + if (($arg0) & 0xF) == 0x3 + etp-term-dump-pid ($arg0) + else + if (($arg0) & 0xF) == 0x7 + printf "| port:0x%05x ", ($arg0) + else + # Immediate2 - 0xB + if (($arg0) & 0x3f) == 0x0b + etp-term-dump-atom ($arg0) + else + if (($arg0) & 0x3f) == 0x1b + printf "| #Catch<%06d> ", ($arg0)>>6 + else + if (($arg0) == $etp_nil) + printf "| [] (NIL) " + else + printf "| I:0x%08x ", ($arg0) + end + end + end + end + end + end +end + +define etp-term-dump-atom +# Args: atom term + set $etp_atom_1_ap = (Atom*)erts_atom_table.seg_table[(Eterm)($arg0)>>16][((Eterm)($arg0)>>6)&0x3FF] + set $etp_atom_1_i = ($etp_atom_1_ap)->len + set $etp_atom_1_p = ($etp_atom_1_ap)->name + set $etp_atom_1_quote = 1 + set $etp_atom_indent = 13 + + if ($etp_atom_1_i < 11) + if ($etp_atom_1_i > 0) + etp-ct-atom-1 (*$etp_atom_1_p) + if $etp_ct_atom + set $etp_atom_indent = 13 + else + set $etp_atom_indent = 11 + end + end + # perform indentation + printf "|" + while ($etp_atom_1_i < $etp_atom_indent) + printf " " + set $etp_atom_1_i++ + end + set $etp_atom_1_i = ($etp_atom_1_ap)->len + # Check if atom has to be quoted + if ($etp_atom_1_i > 0) + etp-ct-atom-1 (*$etp_atom_1_p) + if $etp_ct_atom + # Atom start character + set $etp_atom_1_p++ + set $etp_atom_1_i-- + set $etp_atom_1_quote = 0 + else + set $etp_atom_1_i = 0 + end + end + while $etp_atom_1_i > 0 + etp-ct-name-1 (*$etp_atom_1_p) + if $etp_ct_name + # Name character + set $etp_atom_1_p++ + set $etp_atom_1_i-- + else + set $etp_atom_1_quote = 1 + set $etp_atom_1_i = 0 + end + end + # Print the atom + if $etp_atom_1_quote + printf "'" + end + set $etp_atom_1_i = ($etp_atom_1_ap)->len + set $etp_atom_1_p = ($etp_atom_1_ap)->name + while $etp_atom_1_i > 0 + etp-char-1 (*$etp_atom_1_p) '\'' + set $etp_atom_1_p++ + set $etp_atom_1_i-- + end + if $etp_atom_1_quote + printf "'" + end + printf " " + else + printf "| A:0x%08x ", ($arg0) + end +end + +define etp-term-dump-pid +# Args: Eterm pid +# +# Non-reentrant +# + set $etp_pid_1 = (Eterm)($arg0) + if ($etp_pid_1 & 0xF) == 0x3 + if (etp_arch_bits == 64 && etp_halfword == 0) + if (etp_big_endian) + set $etp_pid_data = (unsigned) ((((Uint64) $etp_pid_1) >> 36) & 0x0fffffff) + else + set $etp_pid_data = (unsigned) ((((Uint64) $etp_pid_1) >> 4) & 0x0fffffff) + end + else + set $etp_pid_data = (unsigned) (((((Uint32) $etp_pid_1) >> 4) & ~erts_proc.r.o.pix_mask) | ((((Uint32) $etp_pid_1) >> (erts_proc.r.o.pix_cl_shift + 4)) & erts_proc.r.o.pix_cl_mask) | (((((Uint32) $etp_pid_1) >> 4) & erts_proc.r.o.pix_cli_mask) << erts_proc.r.o.pix_cli_shift)) + end + # Internal pid + printf "| <0.%04u.%03u> ", $etp_pid_data & 0x7fff, ($etp_pid_data >> 15) & 0x1fff + else + printf "| #NotPid<%#x> ", ($arg0) + end +end + +define etp-term-dump-header +# Args: Header term + if (($arg0) & 0x3f) == 0 + printf "| H:%4d-tuple ", ($arg0) >> 6 + else + set $etp_heapdump_skips = ($arg0) >> 6 + if ((($arg0) & 0x3f) == 0x18) + printf "| H: float %3d ", ($arg0) >> 6 + else + if ((($arg0) & 0x3f) == 0x28) + # sub-binary + printf "| H: sub-bin " + else + if ((($arg0) & 0x3f) == 0x8) + # pos-bignum + printf "| H:bignum %3u ", ($arg0) >> 6 + else + printf "| header %5d ", ($arg0) >> 6 + end + end + end + end +end + + + define etp-pid2pix-1 # Args: Eterm # @@ -1316,49 +1572,102 @@ end define etp-proc-state-int # Args: int # - if ($arg0 & 0xfffff000) + if ($arg0 & 0xff000000) printf "GARBAGE | " end - if ($arg0 & 0x800) + if ($arg0 & 0x800000) + printf "delayed-sys | " + end + if ($arg0 & 0x400000) + printf "proxy | " + set $proxy_process = 1 + else + set $proxy_process = 0 + end + if ($arg0 & 0x200000) + printf "running-sys | " + end + if ($arg0 & 0x100000) + printf "active-sys | " + end + if ($arg0 & 0x80000) printf "trapping-exit | " end - if ($arg0 & 0x400) + if ($arg0 & 0x40000) printf "bound | " end - if ($arg0 & 0x200) + if ($arg0 & 0x20000) printf "garbage-collecting | " end - if ($arg0 & 0x100) + if ($arg0 & 0x10000) printf "suspended | " end - if ($arg0 & 0x80) + if ($arg0 & 0x8000) printf "running | " end - if ($arg0 & 0x40) + if ($arg0 & 0x4000) printf "in-run-queue | " end - if ($arg0 & 0x20) + if ($arg0 & 0x2000) printf "active | " end - if ($arg0 & 0x10) + if ($arg0 & 0x1000) printf "pending-exit | " end - if ($arg0 & 0x8) + if ($arg0 & 0x800) printf "exiting | " end - if ($arg0 & 0x4) + if ($arg0 & 0x400) printf "free | " end - if ($arg0 & 0x3) == 0 - printf "prio-max\n" + if ($arg0 & 0x200) + printf "in-prq-low | " + end + if ($arg0 & 0x100) + printf "in-prq-normal | " + end + if ($arg0 & 0x80) + printf "in-prq-high | " + end + if ($arg0 & 0x40) + printf "in-prq-max | " + end + if ($arg0 & 0x30) == 0x0 + printf "prq-prio-max | " + else + if ($arg0 & 0x30) == 0x10 + printf "prq-prio-high | " + else + if ($arg0 & 0x30) == 0x20 + printf "prq-prio-normal | " + else + printf "prq-prio-low | " + end + end + end + if ($arg0 & 0xc) == 0x0 + printf "usr-prio-max | " else - if ($arg0 & 0x3) == 1 - printf "prio-high\n" + if ($arg0 & 0xc) == 0x4 + printf "usr-prio-high | " else - if ($arg0 & 0x3) == 2 - printf "prio-normal\n" + if ($arg0 & 0xc) == 0x8 + printf "usr-prio-normal | " else - printf "prio-low\n" + printf "usr-prio-low | " + end + end + end + if ($arg0 & 0x3) == 0x0 + printf "act-prio-max\n" + else + if ($arg0 & 0x3) == 0x1 + printf "act-prio-high\n" + else + if ($arg0 & 0x3) == 0x2 + printf "act-prio-normal\n" + else + printf "act-prio-low\n" end end end @@ -1392,9 +1701,15 @@ define etp-process-info # Args: Process* # printf " Pid: " - etp-1 $arg0->common.id + etp-1 ($arg0)->common.id printf "\n State: " etp-proc-state $arg0 + if $proxy_process != 0 + printf " Pointer: (Process *) %p\n", $arg0 + printf " *** PROXY process struct *** refer to: \n" + etp-pid2proc-1 $arg0->common.id + etp-process-info $proc + else if (*(((Uint32 *) &(((Process *) $arg0)->state))) & 0x4) == 0 if ($arg0->common.u.alive.reg) printf " Registered name: " @@ -1432,6 +1747,7 @@ define etp-process-info printf " Parent: " etp-1 $arg0->parent printf "\n Pointer: (Process *) %p\n", $arg0 + end end document etp-process-info @@ -1463,11 +1779,104 @@ end document etp-processes %--------------------------------------------------------------------------- % etp-processes -% +% % Print misc info about all processes %--------------------------------------------------------------------------- end +define etp-processes-memory + if (!erts_initialized) + printf "No processes, since system isn't initialized!\n" + else + set $proc_ix = 0 + printf "--- (%ld processes in wheel)\n", erts_proc.r.o.max + while $proc_ix < erts_proc.r.o.max + set $proc = (Process *) *((UWord *) &erts_proc.r.o.tab[$proc_ix]) + if ($proc != ((Process *) 0) && $proc != &erts_invalid_process) + etp-process-memory-info $proc + end + set $proc_ix++ + end + printf "---\n", + end +end + +document etp-processes-memory +%--------------------------------------------------------------------------- +% etp-processes-memory +% +% Print memory info about all processes +%--------------------------------------------------------------------------- +end + +define etp-process-memory-info +# Args: Process* +# + if ((*(((Uint32 *) &(((Process *) $arg0)->state)))) & 0x400000) + set $proxy_process = 1 + else + set $proxy_process = 0 + end + printf " " + etp-1 $arg0->common.id + printf ": (Process *) %p ", $arg0 + if $proxy_process != 0 + printf "(Process *) %p ", $arg0 + printf " *** PROXY process struct *** refer to next: \n" + etp-pid2proc-1 $arg0->common.id + printf " -" + etp-process-memory-info $proc + else + printf " [Heap: %5ld", $arg0->heap_sz + if ($arg0->old_heap) + printf " | %5ld", $arg0->old_hend - $arg0->old_heap + else + printf " | none " + end + printf "] [Mbuf: %5ld", $arg0->mbuf_sz + if (etp_smp_compiled) + printf " | %3ld (%3ld | %3ld)", ($arg0->msg.len + $arg0->msg_inq.len), $arg0->msg.len, $arg0->msg_inq.len + else + printf " | %3ld", $arg0->msg.len + end + printf "] " + if ($arg0->i) + printf " I: " + etp-cp-1 $arg0->i + printf " " + end + + if ($arg0->current) + etp-1 $arg0->current[0] + printf ":" + etp-1 $arg0->current[1] + printf "/%d ", $arg0->current[2] + end + + if (*(((Uint32 *) &(((Process *) $arg0)->state))) & 0x4) == 0 + if ($arg0->common.u.alive.reg) + etp-1 $arg0->common.u.alive.reg->name + printf " " + end + end + + if ($arg0->cp) + printf " CP: " + etp-cp-1 $arg0->cp + printf " " + end + printf "\n" + end +end + +document etp-process-memory-info +%--------------------------------------------------------------------------- +% etp-process-memory-info Process* +% +% Print memory info about process +%--------------------------------------------------------------------------- +end + define etp-port-id2pix-1 # Args: Eterm # @@ -2433,6 +2842,152 @@ document etp-search-alloc end +define etp-alloc-stats + printf "\nIx Name Inst. Blocks Bytes Carriers Crr.bytes Util\n" + set $etp_tot_block_no = 0 + set $etp_tot_block_sz = 0 + set $etp_tot_crr_no = 0 + set $etp_tot_crr_sz = 0 + set $etp_ERTS_ALC_A_MIN = 1 + set $etp_ERTS_ALC_A_MAX = (sizeof(erts_allctrs) / sizeof(*erts_allctrs)) - 1 + + set $etp_ix = $etp_ERTS_ALC_A_MIN + while $etp_ix <= $etp_ERTS_ALC_A_MAX + set $etp_allctr = 0 + set $etp_alloc = erts_allctrs[$etp_ix].alloc + if $etp_alloc != erts_sys_alloc + if $etp_alloc == erts_alcu_alloc_thr_spec || \ + $etp_alloc == erts_alcu_alloc_thr_pref + set $etp_instance = 0 + set $etp_block_no = 0 + set $etp_block_sz = 0 + set $etp_crr_no = 0 + set $etp_crr_sz = 0 + set $etp_tspec = (ErtsAllocatorThrSpec_t *) erts_allctrs[$etp_ix].extra + if $etp_tspec->enabled + while $etp_instance < $etp_tspec->size + set $etp_allctr = $etp_tspec->allctr[$etp_instance] + set $etp_block_no = $etp_block_no + $etp_allctr->mbcs.blocks.curr.no \ + + $etp_allctr->sbcs.blocks.curr.no + set $etp_block_sz = $etp_block_sz + $etp_allctr->mbcs.blocks.curr.size \ + + $etp_allctr->sbcs.blocks.curr.size + set $etp_crr_no = $etp_crr_no + $etp_allctr->mbcs.curr.norm.mseg.no \ + + $etp_allctr->sbcs.curr.norm.mseg.no \ + + $etp_allctr->mbcs.curr.norm.sys_alloc.no \ + + $etp_allctr->sbcs.curr.norm.sys_alloc.no + set $etp_crr_sz = $etp_crr_sz + $etp_allctr->mbcs.curr.norm.mseg.size \ + + $etp_allctr->sbcs.curr.norm.mseg.size \ + + $etp_allctr->mbcs.curr.norm.sys_alloc.size \ + + $etp_allctr->sbcs.curr.norm.sys_alloc.size + set $etp_instance = $etp_instance + 1 + end + else + printf "erts_allctr[%d]: Disabled (thread specific)\n", $etp_ix + end + else + if $etp_alloc == erts_alcu_alloc_ts || $etp_alloc == erts_alcu_alloc + set $etp_allctr = (Allctr_t*) erts_allctrs[$etp_ix].extra + set $etp_block_no = $etp_allctr->mbcs.blocks.curr.no \ + + $etp_allctr->sbcs.blocks.curr.no + set $etp_block_sz = $etp_allctr->mbcs.blocks.curr.size \ + + $etp_allctr->sbcs.blocks.curr.size + set $etp_crr_no = $etp_allctr->mbcs.curr.norm.mseg.no \ + + $etp_allctr->sbcs.curr.norm.mseg.no \ + + $etp_allctr->mbcs.curr.norm.sys_alloc.no \ + + $etp_allctr->sbcs.curr.norm.sys_alloc.no + set $etp_crr_sz = $etp_allctr->mbcs.curr.norm.mseg.size \ + + $etp_allctr->sbcs.curr.norm.mseg.size \ + + $etp_allctr->mbcs.curr.norm.sys_alloc.size \ + + $etp_allctr->sbcs.curr.norm.sys_alloc.size + set $etp_instance = 1 + else + printf "erts_allctr[%d]: Unknown allocation function: ", $etp_ix + p $etp_alloc + end + end + end + if $etp_allctr != 0 + printf "%2d %-8s%2d%12lu%13lu%12lu%13lu", $etp_ix, $etp_allctr->name_prefix, \ + $etp_instance, \ + $etp_block_no, $etp_block_sz, $etp_crr_no, $etp_crr_sz + if $etp_crr_sz != 0 + printf "%5lu%%", ($etp_block_sz * 100) / $etp_crr_sz + end + printf "\n" + set $etp_tot_block_no = $etp_tot_block_no + $etp_block_no + set $etp_tot_block_sz = $etp_tot_block_sz + $etp_block_sz + set $etp_tot_crr_no = $etp_tot_crr_no + $etp_crr_no + set $etp_tot_crr_sz = $etp_tot_crr_sz + $etp_crr_sz + end + set $etp_ix = $etp_ix + 1 + end + printf "\nTotal: %12lu%13lu%12lu%13lu", $etp_tot_block_no, $etp_tot_block_sz, \ + $etp_tot_crr_no, $etp_tot_crr_sz + if $etp_tot_crr_sz != 0 + printf "%5lu%%", ($etp_tot_block_sz * 100) / $etp_tot_crr_sz + end + printf "\n" +end + +document etp-alloc-stats +%--------------------------------------------------------------------------- +% etp-alloc-stats +% +% Combine and print allocator statistics +%--------------------------------------------------------------------------- +end + + +define etp-alloc-instances + set $etp_ERTS_ALC_A_MIN = 1 + set $etp_ERTS_ALC_A_MAX = (sizeof(erts_allctrs) / sizeof(*erts_allctrs)) - 1 + + set $etp_ix = $arg0 + if $etp_ix >= $etp_ERTS_ALC_A_MIN && $etp_ix <= $etp_ERTS_ALC_A_MAX + set $etp_allctr = 0 + set $etp_alloc = erts_allctrs[$etp_ix].alloc + if $etp_alloc == erts_sys_alloc + printf "Allocator %d is sys_alloc\n", $etp_ix + else + if $etp_alloc == erts_alcu_alloc_thr_spec || \ + $etp_alloc == erts_alcu_alloc_thr_pref + set $etp_instance = 0 + set $etp_tspec = (ErtsAllocatorThrSpec_t *) erts_allctrs[$etp_ix].extra + if $etp_tspec->enabled + printf "All instances for allocator '%s'\n", $etp_tspec->allctr[0]->name_prefix + while $etp_instance < $etp_tspec->size + p $etp_tspec->allctr[$etp_instance] + set $etp_instance = $etp_instance + 1 + end + else + printf "erts_allctr[%d]: Disabled (thread specific)\n", $etp_ix + end + else + if $etp_alloc == erts_alcu_alloc_ts || $etp_alloc == erts_alcu_alloc + set $etp_allctr = (Allctr_t*) erts_allctrs[$etp_ix].extra + printf "Single instances for allocator '%s'\n", $etp_allctr->name_prefix + p $etp_allctr + else + printf "erts_allctr[%d]: Unknown allocation function: ", $etp_ix + p $etp_alloc + end + end + end + else + printf "Allocator type not between %d and %d\n", $etp_ERTS_ALC_A_MIN, $etp_ERTS_ALC_A_MAX + end +end + +document etp-alloc-instances +%--------------------------------------------------------------------------- +% etp-alloc-instances +% +% Print pointers to all allocator instances for a specific type (Ix) +%--------------------------------------------------------------------------- +end + + + define etp-overlapped-heaps # Args: @@ -2736,6 +3291,95 @@ document etp-ets-tabledump %--------------------------------------------------------------------------- end +define etp-lc-dump +# Non-reentrant + set $etp_lc_dump_thread = erts_locked_locks + while $etp_lc_dump_thread + printf "Thread %s\n", $etp_lc_dump_thread->thread_name + set $etp_lc_dump_thread_locked = $etp_lc_dump_thread->locked.first + while $etp_lc_dump_thread_locked + if 0 <= $etp_lc_dump_thread_locked->id && $etp_lc_dump_thread_locked->id < sizeof(erts_lock_order)/sizeof(erts_lc_lock_order_t) + printf " %s:", erts_lock_order[$etp_lc_dump_thread_locked->id].name + else + printf " unkown:" + end + if ($etp_lc_dump_thread_locked->extra & 0x3) == 0x3 + etp-1 $etp_lc_dump_thread_locked->extra + else + printf "%p", $etp_lc_dump_thread_locked->extra + end + if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 0) + printf "[spinlock]" + end + if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 1) + printf "[rw(spin)lock]" + end + if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 2) + printf "[mutex]" + end + if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 3) + printf "[rwmutex]" + end + if ($etp_lc_dump_thread_locked->flags & (0x1f)) == (1 << 4) + printf "[proclock]" + end + printf "(%s:%d)", $etp_lc_dump_thread_locked->file, $etp_lc_dump_thread_locked->line + if ($etp_lc_dump_thread_locked->flags & (0x60)) == (1 << 5) + printf "(r)" + end + if ($etp_lc_dump_thread_locked->flags & (0x60)) == ((1 << 5) | (1 << 6)) + printf "(rw)" + end + printf "\n" + set $etp_lc_dump_thread_locked = $etp_lc_dump_thread_locked->next + end + set $etp_lc_dump_thread = $etp_lc_dump_thread->next + end +end + +document etp-lc-dump +%--------------------------------------------------------------------------- +% etp-lc-dump +% +% Dump all info about locks in the lock checker +%--------------------------------------------------------------------------- +end + +define etp-ppc-stacktrace +# Args: R1 +# Non-reentrant + set $etp_ppc_st_fp = ($arg0) + while $etp_ppc_st_fp + info symbol ((void**)$etp_ppc_st_fp)[1] + set $etp_ppc_st_fp = ((void**)$etp_ppc_st_fp)[0] + end +end + +document etp-ppc-stacktrace +%--------------------------------------------------------------------------- +% etp-ppc-stacktrace R1 +% +% Dump stacktrace from given $r1 frame pointer +%--------------------------------------------------------------------------- +end + +############################################################################ +# OSE support +# +define etp-ose-attach + target ose $arg0:21768 + attach block start_beam start_beam +end + +document etp-ose-attach +%--------------------------------------------------------------------------- +% etp-ose-attach Host +% +% Connect and attach to erlang vm at Host. +%--------------------------------------------------------------------------- +end + + ############################################################################ # Erlang support module handling # @@ -2762,6 +3406,154 @@ define etp-thr end ############################################################################ +# erl_alloc_util (blocks and carriers) +# + +define etp-block-size-1 +# +# In: (Block_t*) in $arg0 +# Out: Byte size in $etp_blk_sz +# + if ($arg0)->bhdr & 1 + # Free block + set $etp_blk_sz = ($arg0)->bhdr & ~7 + else + # Allocated block + if !$etp_MBC_ABLK_SZ_MASK + if etp_arch_bits == 64 + set $etp_MBC_ABLK_OFFSET_SHIFT = (64 - 24) + else + set $etp_MBC_ABLK_OFFSET_SHIFT = (32 - 9) + end + set $etp_MBC_ABLK_SZ_MASK = ((UWord)1 << $etp_MBC_ABLK_OFFSET_SHIFT) - 1 - 7 + end + set $etp_blk_sz = ($arg0)->bhdr & $etp_MBC_ABLK_SZ_MASK + end +end + +define etp-block2mbc-1 +# +# In: (Block_t*) in $arg0 +# Out: (Carrier_t*) in $etp-mbc +# + if (($arg0)->bhdr) & 1 + # Free block + set $etp_mbc = ($arg0)->u.carrier + else + # Allocated block + if !$etp_MBC_ABLK_OFFSET_SHIFT + if etp_arch_bits == 64 + set $etp_MBC_ABLK_OFFSET_SHIFT = (64 - 24) + else + set $etp_MBC_ABLK_OFFSET_SHIFT = (32 - 9) + end + end + set $etp_mbc = (Carrier_t*) ((((UWord)($arg0) >> 18) - (($arg0)->bhdr >> $etp_MBC_ABLK_OFFSET_SHIFT)) << 18) + end +end + +define etp-block2mbc + etp-block2mbc-1 ((Block_t*)$arg0) + print $etp_mbc +end + +document etp-block2mbc +%--------------------------------------------------------------------------- +% Print pointer to multiblock carrier containing the argument (Block_t*) +%--------------------------------------------------------------------------- +end + +define etp-block + etp-block-size-1 ((Block_t*)$arg0) + if ((Block_t*)$arg0)->bhdr & 1 + printf "%#lx: FREE sz=%#x\n", ($arg0), $etp_blk_sz + else + printf "%#lx: ALLOCATED sz=%#x\n", ($arg0), $etp_blk_sz + end +end + +document etp-block +%--------------------------------------------------------------------------- +% Print memory block (Block_t*) +%--------------------------------------------------------------------------- +end + +define etp-carrier-blocks + set $etp_crr = (Carrier_t*) $arg0 + set $etp_alc = (Allctr_t*)($etp_crr->allctr.counter & ~7) + set $etp_blk = (Block_t*) ((char*)$etp_crr + $etp_alc->mbc_header_size) + set $etp_prev_blk = 0 + set $etp_error_cnt = 0 + set $etp_ablk_cnt = 0 + set $etp_fblk_cnt = 0 + + if $argc == 2 + set $etp_be_silent = $arg1 + else + set $etp_be_silent = 0 + end + + while 1 + if !$etp_be_silent + etp-block $etp_blk + else + etp-block-size-1 $etp_blk + end + etp-block2mbc-1 $etp_blk + if $etp_mbc != $etp_crr + printf "ERROR: Invalid carrier pointer %#lx in block at %#lx\n", $etp_mbc, $etp_blk + set $etp_error_cnt = $etp_error_cnt + 1 + end + if $etp_prev_blk + if ($etp_prev_blk->bhdr & 1) + # Prev is FREE + if ($etp_blk->bhdr & 1) + printf "ERROR: Adjacent FREE blocks at %#lx and %#lx\n", $etp_prev_blk, $etp_blk + set $etp_error_cnt = $etp_error_cnt + 1 + end + if !($etp_blk->bhdr & 2) + printf "ERROR: Missing PREV_FREE_BLK_HDR_FLG (2) in block at %#lx\n", $etp_blk + set $etp_error_cnt = $etp_error_cnt + 1 + end + end + end + if $etp_blk->bhdr & 1 + set $etp_fblk_cnt = $etp_fblk_cnt + 1 + else + set $etp_ablk_cnt = $etp_ablk_cnt + 1 + end + if $etp_blk->bhdr & 4 + # Last block + loop_break + end + # All free blocks except the last have a footer + if ($etp_blk->bhdr & 1) && ((UWord*)((char*)$etp_blk + $etp_blk_sz))[-1] != $etp_blk_sz + printf "ERROR: Invalid footer of free block at %#lx\n", $etp_blk + end + set $etp_prev_blk = $etp_blk + set $etp_blk = (Block_t*) ((char*)$etp_blk + $etp_blk_sz) + end + + if ((char*)$etp_blk + $etp_blk_sz) != ((char*)$etp_crr + ($etp_crr->chdr & ~7)) + printf "ERROR: Last block not at end of carrier\n" + set $etp_error_cnt = $etp_error_cnt + 1 + end + printf "Allocated blocks: %u\n", $etp_ablk_cnt + printf "Free blocks: %u\n", $etp_fblk_cnt + if $etp_error_cnt + printf "%u ERRORs reported above\n", $etp-error-cnt + end +end + +document etp-carrier-blocks +%--------------------------------------------------------------------------- +% Check and (maybe) print all memory blocks in carrier +% Args: (Carrier_t*) [1=be_silent] +%--------------------------------------------------------------------------- +end + + +############################################################################ # Toolbox parameter handling # diff --git a/erts/etc/unix/run_erl.c b/erts/etc/unix/run_erl.c index 2018bc007c..4b123b8911 100644 --- a/erts/etc/unix/run_erl.c +++ b/erts/etc/unix/run_erl.c @@ -40,9 +40,13 @@ #ifdef HAVE_CONFIG_H # include "config.h" #endif + #ifdef HAVE_WORKING_POSIX_OPENPT +#ifndef _XOPEN_SOURCE #define _XOPEN_SOURCE 600 #endif +#endif + #include <sys/types.h> #include <sys/wait.h> #include <sys/stat.h> @@ -79,81 +83,25 @@ # include <stropts.h> #endif -#include "run_erl.h" +#include "run_erl_common.h" #include "safe_string.h" /* sn_printf, strn_cpy, strn_cat, etc */ -#ifdef O_NONBLOCK -# define DONT_BLOCK_PLEASE O_NONBLOCK -#else -# define DONT_BLOCK_PLEASE O_NDELAY -# ifndef EAGAIN -# define EAGAIN -3898734 -# endif -#endif - -#define noDEBUG - -#define DEFAULT_LOG_GENERATIONS 5 -#define LOG_MAX_GENERATIONS 1000 /* No more than 1000 log files */ -#define LOG_MIN_GENERATIONS 2 /* At least two to switch between */ -#define DEFAULT_LOG_MAXSIZE 100000 -#define LOG_MIN_MAXSIZE 1000 /* Smallast value for changing log file */ -#define LOG_STUBNAME "erlang.log." -#define LOG_PERM 0664 -#define DEFAULT_LOG_ACTIVITY_MINUTES 5 -#define DEFAULT_LOG_ALIVE_MINUTES 15 -#define DEFAULT_LOG_ALIVE_FORMAT "%a %b %e %T %Z %Y" -#define ALIVE_BUFFSIZ 256 - -#define PERM 0600 -#define STATUSFILENAME "/run_erl.log" -#define PIPE_STUBNAME "erlang.pipe" -#define PIPE_STUBLEN strlen(PIPE_STUBNAME) - -#ifndef FILENAME_MAX -#define FILENAME_MAX 250 -#endif - -#ifndef O_SYNC -#define O_SYNC 0 -#define USE_FSYNC 1 -#endif - #define MAX(x,y) ((x) > (y) ? (x) : (y)) -#define FILENAME_BUFSIZ FILENAME_MAX - /* prototypes */ static void usage(char *); -static int create_fifo(char *name, int perm); static int open_pty_master(char **name, int *sfd); static int open_pty_slave(char *name); static void pass_on(pid_t); static void exec_shell(char **); -static void status(const char *format,...); -static void error_logf(int priority, int line, const char *format,...); static void catch_sigchild(int); -static int next_log(int log_num); -static int prev_log(int log_num); -static int find_next_log_num(void); -static int open_log(int log_num, int flags); -static void write_to_log(int* lfd, int* log_num, char* buf, int len); static void daemon_init(void); -static char *simple_basename(char *path); static void init_outbuf(void); static int outbuf_size(void); static void clear_outbuf(void); static char* outbuf_first(void); static void outbuf_delete(int bytes); static void outbuf_append(const char* bytes, int n); -static int write_all(int fd, const char* buf, int len); -static int extract_ctrl_seq(char* buf, int len); -static void set_window_size(unsigned col, unsigned row); - -static ssize_t sf_write(int fd, const void *buffer, size_t len); -static ssize_t sf_read(int fd, void *buffer, size_t len); -static int sf_open(const char *path, int flags, mode_t mode); -static int sf_close(int fd); #ifdef DEBUG static void show_terminal_settings(struct termios *t); @@ -161,20 +109,11 @@ static void show_terminal_settings(struct termios *t); /* static data */ static char fifo1[FILENAME_BUFSIZ], fifo2[FILENAME_BUFSIZ]; -static char statusfile[FILENAME_BUFSIZ]; -static char log_dir[FILENAME_BUFSIZ]; static char pipename[FILENAME_BUFSIZ]; static FILE *stdstatus = NULL; -static int log_generations = DEFAULT_LOG_GENERATIONS; -static int log_maxsize = DEFAULT_LOG_MAXSIZE; -static int log_alive_minutes = DEFAULT_LOG_ALIVE_MINUTES; -static int log_activity_minutes = DEFAULT_LOG_ACTIVITY_MINUTES; -static int log_alive_in_gmt = 0; -static char log_alive_format[ALIVE_BUFFSIZ+1]; static int run_daemon = 0; static char *program_name; static int mfd; /* master pty fd */ -static unsigned protocol_ver = RUN_ERL_LO_VER; /* assume lowest to begin with */ /* * Output buffer. @@ -205,29 +144,13 @@ static char* outbuf_in; LOG_PID|LOG_CONS|LOG_NOWAIT,LOG_USER) #endif -#define ERROR0(Prio,Format) error_logf(Prio,__LINE__,Format"\n") -#define ERROR1(Prio,Format,A1) error_logf(Prio,__LINE__,Format"\n",A1) -#define ERROR2(Prio,Format,A1,A2) error_logf(Prio,__LINE__,Format"\n",A1,A2) - -#ifdef HAVE_STRERROR -# define ADD_ERRNO(Format) "errno=%d '%s'\n"Format"\n",errno,strerror(errno) -#else -# define ADD_ERRNO(Format) "errno=%d\n"Format"\n",errno -#endif -#define ERRNO_ERR0(Prio,Format) error_logf(Prio,__LINE__,ADD_ERRNO(Format)) -#define ERRNO_ERR1(Prio,Format,A1) error_logf(Prio,__LINE__,ADD_ERRNO(Format),A1) - - int main(int argc, char **argv) { int childpid; int sfd = -1; - int fd; - char *p, *ptyslave=NULL; + char *ptyslave=NULL; int i = 1; int off_argv; - int calculated_pipename = 0; - int highest_pipe_num = 0; program_name = argv[0]; @@ -245,122 +168,16 @@ int main(int argc, char **argv) off_argv = i; strn_cpy(pipename, sizeof(pipename), argv[i++]); - strn_cpy(log_dir, sizeof(log_dir), argv[i]); - strn_cpy(statusfile, sizeof(statusfile), log_dir); - strn_cat(statusfile, sizeof(statusfile), STATUSFILENAME); + + erts_run_erl_log_init(run_daemon,argv[i]); #ifdef DEBUG - status("%s: pid is : %d\n", argv[0], getpid()); + erts_run_erl_log_status("%s: pid is : %d\n", argv[0], getpid()); #endif - /* Get values for LOG file handling from the environment */ - if ((p = getenv("RUN_ERL_LOG_ALIVE_MINUTES"))) { - log_alive_minutes = atoi(p); - if (!log_alive_minutes) { - ERROR1(LOG_ERR,"Minimum value for RUN_ERL_LOG_ALIVE_MINUTES is 1 " - "(current value is %s)",p); - } - log_activity_minutes = log_alive_minutes / 3; - if (!log_activity_minutes) { - ++log_activity_minutes; - } - } - if ((p = getenv("RUN_ERL_LOG_ACTIVITY_MINUTES"))) { - log_activity_minutes = atoi(p); - if (!log_activity_minutes) { - ERROR1(LOG_ERR,"Minimum value for RUN_ERL_LOG_ACTIVITY_MINUTES is 1 " - "(current value is %s)",p); - } - } - if ((p = getenv("RUN_ERL_LOG_ALIVE_FORMAT"))) { - if (strlen(p) > ALIVE_BUFFSIZ) { - ERROR1(LOG_ERR, "RUN_ERL_LOG_ALIVE_FORMAT can contain a maximum of " - "%d characters", ALIVE_BUFFSIZ); - } - strn_cpy(log_alive_format, sizeof(log_alive_format), p); - } else { - strn_cpy(log_alive_format, sizeof(log_alive_format), DEFAULT_LOG_ALIVE_FORMAT); - } - if ((p = getenv("RUN_ERL_LOG_ALIVE_IN_UTC")) && strcmp(p,"0")) { - ++log_alive_in_gmt; - } - if ((p = getenv("RUN_ERL_LOG_GENERATIONS"))) { - log_generations = atoi(p); - if (log_generations < LOG_MIN_GENERATIONS) - ERROR1(LOG_ERR,"Minimum RUN_ERL_LOG_GENERATIONS is %d", LOG_MIN_GENERATIONS); - if (log_generations > LOG_MAX_GENERATIONS) - ERROR1(LOG_ERR,"Maximum RUN_ERL_LOG_GENERATIONS is %d", LOG_MAX_GENERATIONS); - } - - if ((p = getenv("RUN_ERL_LOG_MAXSIZE"))) { - log_maxsize = atoi(p); - if (log_maxsize < LOG_MIN_MAXSIZE) - ERROR1(LOG_ERR,"Minimum RUN_ERL_LOG_MAXSIZE is %d", LOG_MIN_MAXSIZE); - } - - /* - * Create FIFOs and open them - */ - - if(*pipename && pipename[strlen(pipename)-1] == '/') { - /* The user wishes us to find a unique pipe name in the specified */ - /* directory */ - DIR *dirp; - struct dirent *direntp; - - calculated_pipename = 1; - dirp = opendir(pipename); - if(!dirp) { - ERRNO_ERR1(LOG_ERR,"Can't access pipe directory '%s'.", pipename); - exit(1); - } - - /* Check the directory for existing pipes */ - - while((direntp=readdir(dirp)) != NULL) { - if(strncmp(direntp->d_name,PIPE_STUBNAME,PIPE_STUBLEN)==0) { - int num = atoi(direntp->d_name+PIPE_STUBLEN+1); - if(num > highest_pipe_num) - highest_pipe_num = num; - } - } - closedir(dirp); - strn_catf(pipename, sizeof(pipename), "%s.%d", - PIPE_STUBNAME, highest_pipe_num+1); - } /* if */ - - for(;;) { - /* write FIFO - is read FIFO for `to_erl' program */ - strn_cpy(fifo1, sizeof(fifo1), pipename); - strn_cat(fifo1, sizeof(fifo1), ".r"); - if (create_fifo(fifo1, PERM) < 0) { - ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for writing.", fifo1); - exit(1); - } - - /* read FIFO - is write FIFO for `to_erl' program */ - strn_cpy(fifo2, sizeof(fifo2), pipename); - strn_cat(fifo2, sizeof(fifo2), ".w"); - - /* Check that nobody is running run_erl already */ - if ((fd = sf_open(fifo2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) { - /* Open as client succeeded -- run_erl is already running! */ - sf_close(fd); - if (calculated_pipename) { - ++highest_pipe_num; - strn_catf(pipename, sizeof(pipename), "%s.%d", - PIPE_STUBNAME, highest_pipe_num+1); - continue; - } - fprintf(stderr, "Erlang already running on pipe %s.\n", pipename); - exit(1); - } - if (create_fifo(fifo2, PERM) < 0) { - ERRNO_ERR1(LOG_ERR,"Cannot create FIFO %s for reading.", fifo2); - exit(1); - } - break; - } + /* Open read and write fifo */ + if (erts_run_erl_open_fifo(pipename,fifo1,fifo2)) + exit(1); /* * Open master pseudo-terminal @@ -432,7 +249,7 @@ int main(int argc, char **argv) sf_close(2); if (dup(sfd) != 0 || dup(sfd) != 1 || dup(sfd) != 2) { - status("Cannot dup\n"); + erts_run_erl_log_status("Cannot dup\n"); } sf_close(sfd); exec_shell(argv+off_argv); /* exec_shell expects argv[2] to be */ @@ -475,9 +292,7 @@ static void pass_on(pid_t childpid) struct timeval timeout; time_t last_activity; char buf[BUFSIZ]; - char log_alive_buffer[ALIVE_BUFFSIZ+1]; - int lognum; - int rfd, wfd=0, lfd=0; + int rfd, wfd=0; int maxfd; int ready; int got_some = 0; /* from to_erl */ @@ -492,13 +307,12 @@ static void pass_on(pid_t childpid) } #ifdef DEBUG - status("run_erl: %s opened for reading\n", fifo2); + erts_run_erl_log_status("run_erl: %s opened for reading\n", fifo2); #endif /* Open the log file */ - lognum = find_next_log_num(); - lfd = open_log(lognum, O_RDWR|O_APPEND|O_CREAT|O_SYNC); + erts_run_erl_log_open(); /* Enter the work loop */ @@ -517,7 +331,8 @@ static void pass_on(pid_t childpid) writefds_ptr = &writefds; } time(&last_activity); - timeout.tv_sec = log_alive_minutes*60; /* don't assume old BSD bug */ + /* don't assume old BSD bug */ + timeout.tv_sec = erts_run_erl_log_alive_minutes()*60; timeout.tv_usec = 0; ready = select(maxfd + 1, &readfds, writefds_ptr, NULL, &timeout); if (ready < 0) { @@ -547,28 +362,7 @@ static void pass_on(pid_t childpid) /* Check how long time we've been inactive */ time(&now); - if(!ready || now - last_activity > log_activity_minutes*60) { - /* Either a time out: 15 minutes without action, */ - /* or something is coming in right now, but it's a long time */ - /* since last time, so let's write a time stamp this message */ - struct tm *tmptr; - if (log_alive_in_gmt) { - tmptr = gmtime(&now); - } else { - tmptr = localtime(&now); - } - if (!strftime(log_alive_buffer, ALIVE_BUFFSIZ, log_alive_format, - tmptr)) { - strn_cpy(log_alive_buffer, sizeof(log_alive_buffer), - "(could not format time in 256 positions " - "with current format string.)"); - } - log_alive_buffer[ALIVE_BUFFSIZ] = '\0'; - - sn_printf(buf, sizeof(buf), "\n===== %s%s\n", - ready?"":"ALIVE ", log_alive_buffer); - write_to_log(&lfd, &lognum, buf, strlen(buf)); - } + erts_run_erl_log_activity(!ready,now,last_activity); } /* @@ -603,7 +397,7 @@ static void pass_on(pid_t childpid) */ if (FD_ISSET(mfd, &readfds)) { #ifdef DEBUG - status("Pty master read; "); + erts_run_erl_log_status("Pty master read; "); #endif if ((len = sf_read(mfd, buf, BUFSIZ)) <= 0) { sf_close(rfd); @@ -621,7 +415,7 @@ static void pass_on(pid_t childpid) exit(0); } - write_to_log(&lfd, &lognum, buf, len); + erts_run_erl_log_write(buf, len); /* * Save in the output queue. @@ -637,7 +431,7 @@ static void pass_on(pid_t childpid) */ if (FD_ISSET(rfd, &readfds)) { #ifdef DEBUG - status("FIFO read; "); + erts_run_erl_log_status("FIFO read; "); #endif if ((len = sf_read(rfd, buf, BUFSIZ)) < 0) { sf_close(rfd); @@ -666,7 +460,7 @@ static void pass_on(pid_t childpid) * should succeed. But in case of error, we just ignore it. */ if ((wfd = sf_open(fifo1, O_WRONLY|DONT_BLOCK_PLEASE, 0)) < 0) { - status("Client expected on FIFO %s, but can't open (len=%d)\n", + erts_run_erl_log_status("Client expected on FIFO %s, but can't open (len=%d)\n", fifo1, len); sf_close(rfd); rfd = sf_open(fifo2, O_RDONLY|DONT_BLOCK_PLEASE, 0); @@ -678,7 +472,7 @@ static void pass_on(pid_t childpid) } else { #ifdef DEBUG - status("run_erl: %s opened for writing\n", fifo1); + erts_run_erl_log_status("run_erl: %s opened for writing\n", fifo1); #endif } } @@ -694,14 +488,15 @@ static void pass_on(pid_t childpid) /* Write the message */ #ifdef DEBUG - status("Pty master write; "); + erts_run_erl_log_status("Pty master write; "); #endif - len = extract_ctrl_seq(buf, len); + len = erts_run_erl_extract_ctrl_seq(buf, len); if(len==1 && buf[0] == '\003') { kill(childpid,SIGINT); - } - else if (len>0 && write_all(mfd, buf, len) != len) { + } + else if (len>0 && erts_run_erl_write_all(mfd, buf, len) != len) + { ERRNO_ERR0(LOG_ERR,"Error in writing to terminal."); sf_close(rfd); if(wfd) sf_close(wfd); @@ -710,7 +505,7 @@ static void pass_on(pid_t childpid) } } #ifdef DEBUG - status("OK\n"); + erts_run_erl_log_status("OK\n"); #endif } } @@ -720,173 +515,6 @@ static void catch_sigchild(int sig) { } -/* - * next_log: - * Returns the index number that follows the given index number. - * (Wrapping after log_generations) - */ -static int next_log(int log_num) { - return log_num>=log_generations?1:log_num+1; -} - -/* - * prev_log: - * Returns the index number that precedes the given index number. - * (Wrapping after log_generations) - */ -static int prev_log(int log_num) { - return log_num<=1?log_generations:log_num-1; -} - -/* - * find_next_log_num() - * Searches through the log directory to check which logs that already - * exist. It finds the "hole" in the sequence, and returns the index - * number for the last log in the log sequence. If there is no hole, index - * 1 is returned. - */ -static int find_next_log_num(void) { - int i, next_gen, log_gen; - DIR *dirp; - struct dirent *direntp; - int log_exists[LOG_MAX_GENERATIONS+1]; - int stub_len = strlen(LOG_STUBNAME); - - /* Initialize exiting log table */ - - for(i=log_generations; i>=0; i--) - log_exists[i] = 0; - dirp = opendir(log_dir); - if(!dirp) { - ERRNO_ERR1(LOG_ERR,"Can't access log directory '%s'", log_dir); - exit(1); - } - - /* Check the directory for existing logs */ - - while((direntp=readdir(dirp)) != NULL) { - if(strncmp(direntp->d_name,LOG_STUBNAME,stub_len)==0) { - int num = atoi(direntp->d_name+stub_len); - if(num < 1 || num > log_generations) - continue; - log_exists[num] = 1; - } - } - closedir(dirp); - - /* Find out the next available log file number */ - - next_gen = 0; - for(i=log_generations; i>=0; i--) { - if(log_exists[i]) - if(next_gen) - break; - else - ; - else - next_gen = i; - } - - /* Find out the current log file number */ - - if(next_gen) - log_gen = prev_log(next_gen); - else - log_gen = 1; - - return log_gen; -} /* find_next_log_num() */ - -/* open_log() - * Opens a log file (with given index) for writing. Writing may be - * at the end or a trucnating write, according to flags. - * A LOGGING STARTED and time stamp message is inserted into the log file - */ -static int open_log(int log_num, int flags) -{ - char buf[FILENAME_MAX]; - time_t now; - struct tm *tmptr; - char log_buffer[ALIVE_BUFFSIZ+1]; - int lfd; - - /* Remove the next log (to keep a "hole" in the log sequence) */ - sn_printf(buf, sizeof(buf), "%s/%s%d", - log_dir, LOG_STUBNAME, next_log(log_num)); - unlink(buf); - - /* Create or continue on the current log file */ - sn_printf(buf, sizeof(buf), "%s/%s%d", log_dir, LOG_STUBNAME, log_num); - if((lfd = sf_open(buf, flags, LOG_PERM))<0){ - ERRNO_ERR1(LOG_ERR,"Can't open log file '%s'.", buf); - exit(1); - } - - /* Write a LOGGING STARTED and time stamp into the log file */ - time(&now); - if (log_alive_in_gmt) { - tmptr = gmtime(&now); - } else { - tmptr = localtime(&now); - } - if (!strftime(log_buffer, ALIVE_BUFFSIZ, log_alive_format, - tmptr)) { - strn_cpy(log_buffer, sizeof(log_buffer), - "(could not format time in 256 positions " - "with current format string.)"); - } - log_buffer[ALIVE_BUFFSIZ] = '\0'; - - sn_printf(buf, sizeof(buf), "\n=====\n===== LOGGING STARTED %s\n=====\n", - log_buffer); - if (write_all(lfd, buf, strlen(buf)) < 0) - status("Error in writing to log.\n"); - -#if USE_FSYNC - fsync(lfd); -#endif - - return lfd; -} - -/* write_to_log() - * Writes a message to a log file. If the current log file is full, - * a new log file is opened. - */ -static void write_to_log(int* lfd, int* log_num, char* buf, int len) -{ - int size; - - /* Decide if new logfile needed, and open if so */ - - size = lseek(*lfd,0,SEEK_END); - if(size+len > log_maxsize) { - sf_close(*lfd); - *log_num = next_log(*log_num); - *lfd = open_log(*log_num, O_RDWR|O_CREAT|O_TRUNC|O_SYNC); - } - - /* Write to log file */ - - if (write_all(*lfd, buf, len) < 0) { - status("Error in writing to log.\n"); - } - -#if USE_FSYNC - fsync(*lfd); -#endif -} - -/* create_fifo() - * Creates a new fifo with the given name and permission. - */ -static int create_fifo(char *name, int perm) -{ - if ((mkfifo(name, perm) < 0) && (errno != EEXIST)) - return -1; - return 0; -} - /* open_pty_master() * Find a master device, open and return fd and slave device name. @@ -1083,9 +711,9 @@ static void exec_shell(char **argv) else argv[0] = sh; argv[1] = "-c"; - status("Args before exec of shell:\n"); + erts_run_erl_log_status("Args before exec of shell:\n"); for (vp = argv, i = 0; *vp; vp++, i++) - status("argv[%d] = %s\n", i, *vp); + erts_run_erl_log_status("argv[%d] = %s\n", i, *vp); if (stdstatus) { fclose(stdstatus); } @@ -1096,26 +724,6 @@ static void exec_shell(char **argv) ERRNO_ERR0(LOG_ERR,"Could not execv"); } -/* status() - * Prints the arguments to a status file - * Works like printf (see vfrpintf) - */ -static void status(const char *format,...) -{ - va_list args; - time_t now; - - if (stdstatus == NULL) - stdstatus = fopen(statusfile, "w"); - if (stdstatus == NULL) - return; - now = time(NULL); - fprintf(stdstatus, "run_erl [%d] %s", (int)getpid(), ctime(&now)); - va_start(args, format); - vfprintf(stdstatus, format, args); - va_end(args); - fflush(stdstatus); -} static void daemon_init(void) /* As R Stevens wants it, to a certain extent anyway... */ @@ -1155,47 +763,10 @@ static void daemon_init(void) run_daemon = 1; } -/* error_logf() - * Prints the arguments to stderr or syslog - * Works like printf (see vfprintf) - */ -static void error_logf(int priority, int line, const char *format, ...) -{ - va_list args; - va_start(args, format); - -#ifdef HAVE_SYSLOG_H - if (run_daemon) { - vsyslog(priority,format,args); - } - else -#endif - { - time_t now = time(NULL); - fprintf(stderr, "run_erl:%d [%d] %s", line, (int)getpid(), ctime(&now)); - vfprintf(stderr, format, args); - } - va_end(args); -} - static void usage(char *pname) { - fprintf(stderr, "Usage: %s (pipe_name|pipe_dir/) log_dir \"command [parameters ...]\"\n", pname); - fprintf(stderr, "\nYou may also set the environment variables RUN_ERL_LOG_GENERATIONS\n"); - fprintf(stderr, "and RUN_ERL_LOG_MAXSIZE to the number of log files to use and the\n"); - fprintf(stderr, "size of the log file when to switch to the next log file\n"); -} - -/* Instead of making sure basename exists, we do our own */ -static char *simple_basename(char *path) -{ - char *ptr; - for (ptr = path; *ptr != '\0'; ++ptr) { - if (*ptr == '/') { - path = ptr + 1; - } - } - return path; + fprintf(stderr, "Usage: "); + fprintf(stderr, RUN_ERL_USAGE, pname); } static void init_outbuf(void) @@ -1266,114 +837,6 @@ static void outbuf_append(const char* buf, int n) outbuf_in += n; } -/* Call write() until entire buffer has been written or error. - * Return len or -1. - */ -static int write_all(int fd, const char* buf, int len) -{ - int left = len; - int written; - for (;;) { - written = sf_write(fd,buf,left); - if (written == left) { - return len; - } - if (written < 0) { - return -1; - } - left -= written; - buf += written; - } -} - -static ssize_t sf_read(int fd, void *buffer, size_t len) { - ssize_t n = 0; - - do { n = read(fd, buffer, len); } while (n < 0 && errno == EINTR); - - return n; -} - -static ssize_t sf_write(int fd, const void *buffer, size_t len) { - ssize_t n = 0; - - do { n = write(fd, buffer, len); } while (n < 0 && errno == EINTR); - - return n; -} - -static int sf_open(const char *path, int type, mode_t mode) { - int fd = 0; - - do { fd = open(path, type, mode); } while(fd < 0 && errno == EINTR); - - return fd; -} -static int sf_close(int fd) { - int res = 0; - - do { res = close(fd); } while(fd < 0 && errno == EINTR); - - return res; -} -/* Extract any control sequences that are ment only for run_erl - * and should not be forwarded to the pty. - */ -static int extract_ctrl_seq(char* buf, int len) -{ - static const char prefix[] = "\033_"; - static const char suffix[] = "\033\\"; - char* bufend = buf + len; - char* start = buf; - char* command; - char* end; - - for (;;) { - start = find_str(start, bufend-start, prefix); - if (!start) break; - - command = start + strlen(prefix); - end = find_str(command, bufend-command, suffix); - if (end) { - unsigned col, row; - if (sscanf(command,"version=%u", &protocol_ver)==1) { - /*fprintf(stderr,"to_erl v%u\n", protocol_ver);*/ - } - else if (sscanf(command,"winsize=%u,%u", &col, &row)==2) { - set_window_size(col,row); - } - else { - ERROR2(LOG_ERR, "Ignoring unknown ctrl command '%.*s'\n", - (int)(end-command), command); - } - - /* Remove ctrl sequence from buf */ - end += strlen(suffix); - memmove(start, end, bufend-end); - bufend -= end - start; - } - else { - ERROR2(LOG_ERR, "Missing suffix in ctrl sequence '%.*s'\n", - (int)(bufend-start), start); - break; - } - } - return bufend - buf; -} - -static void set_window_size(unsigned col, unsigned row) -{ -#ifdef TIOCSWINSZ - struct winsize ws; - ws.ws_col = col; - ws.ws_row = row; - if (ioctl(mfd, TIOCSWINSZ, &ws) < 0) { - ERRNO_ERR0(LOG_ERR,"Failed to set window size"); - } -#endif -} - - #ifdef DEBUG #define S(x) ((x) > 0 ? 1 : 0) diff --git a/erts/etc/unix/run_erl.h b/erts/etc/unix/run_erl.h deleted file mode 100644 index 843cda680c..0000000000 --- a/erts/etc/unix/run_erl.h +++ /dev/null @@ -1,30 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 2008-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * - * %CopyrightEnd% - */ - -/* - * The protocol version number used between to_erl and run_erl. - */ -#define RUN_ERL_HI_VER 1 /* My preferred protocol version */ -#define RUN_ERL_LO_VER 0 /* The lowest version I accept to talk with */ - -/* Version history: - * 0: Older, without version handshake - * 1: R12B-3, version handshake + window size ctrl - */ - diff --git a/erts/etc/unix/safe_string.c b/erts/etc/unix/safe_string.c deleted file mode 100644 index a77d9c5456..0000000000 --- a/erts/etc/unix/safe_string.c +++ /dev/null @@ -1,123 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 2008-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * - * %CopyrightEnd% - */ -/* - * Module: safe_string.c - * - * This is a bunch of generic string operation - * that are safe regarding buffer overflow. - * - * All string functions terminate the process with an error message - * on buffer overflow. - */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif -#include "safe_string.h" -#include <stdio.h> -#include <string.h> -#include <stdarg.h> -#include <stdlib.h> - - -static void string_overflow_handler(const char* format, ...) -{ - va_list args; - va_start(args, format); - vfprintf(stderr,format,args); - va_end(args); - exit(1); -} - -int vsn_printf(char* dst, size_t size, const char* format, va_list args) -{ - int ret = vsnprintf(dst, size, format, args); - if (ret >= size || ret < 0) { - string_overflow_handler("Buffer truncated '%s'\n",dst); - } - return ret; -} - -int sn_printf(char* dst, size_t size, const char* format, ...) -{ - va_list args; - int ret; - va_start(args, format); - ret = vsn_printf(dst,size,format,args); - va_end(args); - return ret; -} - -int strn_cpy(char* dst, size_t size, const char* src) -{ - return sn_printf(dst,size,"%s",src); -} - -int strn_cat(char* dst, size_t size, const char* src) -{ - return strn_catf(dst,size,"%s",src); -} - -int strn_catf(char* dst, size_t size, const char* format, ...) -{ - int ret; - va_list args; -#ifdef _GNU_SOURCE - int len = strnlen(dst,size); -#else - int len = strlen(dst); -#endif - - if (len >= size) { - string_overflow_handler("Buffer already overflowed '%.*s'\n", - size, dst); - } - va_start(args, format); - ret = vsn_printf(dst+len, size-len, format, args); - va_end(args); - return len+ret; -} - -char* find_str(const char* haystack, int hsize, const char* needle) -{ - int i = 0; - int nsize = strlen(needle); - hsize -= nsize - 1; - for (i=0; i<hsize; i++) { - if (haystack[i]==needle[0] && strncmp(haystack+i,needle,nsize)==0) { - return (char*)(haystack+i); - } - } - return NULL; -} - -#ifndef HAVE_MEMMOVE -void* memmove(void *dest, const void *src, size_t n) -{ - int i; - if (src > dest) { - for (i=0; i<n; i++) ((char*)dest)[i] = ((char*)src)[i]; - } - else { - for (i=(int)(n-1); i>=0; i--) ((char*)dest)[i] = ((char*)src)[i]; - } - return dest; -} -#endif /* HAVE_MEMMOVE */ - diff --git a/erts/etc/unix/safe_string.h b/erts/etc/unix/safe_string.h deleted file mode 100644 index c70e528814..0000000000 --- a/erts/etc/unix/safe_string.h +++ /dev/null @@ -1,65 +0,0 @@ -/* - * %CopyrightBegin% - * - * Copyright Ericsson AB 2008-2009. All Rights Reserved. - * - * The contents of this file are subject to the Erlang Public License, - * Version 1.1, (the "License"); you may not use this file except in - * compliance with the License. You should have received a copy of the - * Erlang Public License along with this software. If not, it can be - * retrieved online at http://www.erlang.org/. - * - * Software distributed under the License is distributed on an "AS IS" - * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See - * the License for the specific language governing rights and limitations - * under the License. - * - * %CopyrightEnd% - */ -/* - * Module: safe_string.h - * - * This is an interface to a bunch of generic string operation - * that are safe regarding buffer overflow. - * - * All string functions terminate the process with an error message - * on buffer overflow. - */ - -#include <stdio.h> -#include <stdarg.h> - -/* Like vsnprintf() - */ -int vsn_printf(char* dst, size_t size, const char* format, va_list args); - -/* Like snprintf() - */ -int sn_printf(char* dst, size_t size, const char* format, ...); - -/* Like strncpy() - * Returns length of copied string. - */ -int strn_cpy(char* dst, size_t size, const char* src); - -/* Almost like strncat() - * size is sizeof entire dst buffer. - * Returns length of resulting string. - */ -int strn_cat(char* dst, size_t size, const char* src); - -/* Combination of strncat() and snprintf() - * size is sizeof entire dst buffer. - * Returns length of resulting string. - */ -int strn_catf(char* dst, size_t size, const char* format, ...); - -/* Simular to strstr() but search size bytes of haystack - * without regard to '\0' characters. - */ -char* find_str(const char* haystack, int size, const char* needle); - -#ifndef HAVE_MEMMOVE -void* memmove(void *dest, const void *src, size_t n); -#endif - diff --git a/erts/etc/unix/to_erl.c b/erts/etc/unix/to_erl.c index b9e397cbf2..38a94ed9c3 100644 --- a/erts/etc/unix/to_erl.c +++ b/erts/etc/unix/to_erl.c @@ -16,592 +16,9 @@ * * %CopyrightEnd% */ -/* - * Module: to_erl.c - * - * This module implements a process that opens two specified FIFOs, one - * for reading and one for writing; reads from its stdin, and writes what - * it has read to the write FIF0; reads from the read FIFO, and writes to - * its stdout. - * - ________ _________ - | |--<-- pipe.r (fifo1) --<--| | - | to_erl | | run_erl | (parent) - |________|-->-- pipe.w (fifo2) -->--|_________| - ^ master pty - | - | slave pty - ____V____ - | | - | "erl" | (child) - |_________| - */ -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/time.h> -#include <sys/types.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <termios.h> -#include <dirent.h> -#include <signal.h> -#include <errno.h> -#ifdef HAVE_SYS_IOCTL_H -# include <sys/ioctl.h> -#endif - -#include "run_erl.h" -#include "safe_string.h" /* strn_cpy, strn_catf, sn_printf, etc. */ - -#if defined(O_NONBLOCK) -# define DONT_BLOCK_PLEASE O_NONBLOCK -#else -# define DONT_BLOCK_PLEASE O_NDELAY -# if !defined(EAGAIN) -# define EAGAIN -3898734 -# endif -#endif - -#ifdef HAVE_STRERROR -# define STRERROR(x) strerror(x) -#else -# define STRERROR(x) "" -#endif - -#define noDEBUG - -#define PIPE_DIR "/tmp/" -#define PIPE_STUBNAME "erlang.pipe" -#define PIPE_STUBLEN strlen(PIPE_STUBNAME) - -#ifdef DEBUG -#define STATUS(s) { fprintf(stderr, (s)); fflush(stderr); } -#else -#define STATUS(s) -#endif - -#ifndef FILENAME_MAX -#define FILENAME_MAX 250 -#endif - -static struct termios tty_smode, tty_rmode; -static int tty_eof = 0; -static int recv_sig = 0; -static int protocol_ver = RUN_ERL_LO_VER; /* assume lowest to begin with */ - -static int write_all(int fd, const char* buf, int len); -static int window_size_seq(char* buf, size_t bufsz); -static int version_handshake(char* buf, int len, int wfd); -#ifdef DEBUG -static void show_terminal_settings(struct termios *); -#endif - -static void handle_ctrlc(int sig) -{ - /* Reinstall the handler, and signal break flag */ - signal(SIGINT,handle_ctrlc); - recv_sig = SIGINT; -} - -static void handle_sigwinch(int sig) -{ - recv_sig = SIGWINCH; -} - -static void usage(char *pname) -{ - fprintf(stderr, "Usage: %s [-h|-F] [pipe_name|pipe_dir/]\n", pname); - fprintf(stderr, "\t-h\tThis help text.\n"); - fprintf(stderr, "\t-F\tForce connection even though pipe is locked by other to_erl process.\n"); -} - -int main(int argc, char **argv) -{ - char FIFO1[FILENAME_MAX], FIFO2[FILENAME_MAX]; - int i, len, wfd, rfd; - fd_set readfds; - char buf[BUFSIZ]; - char pipename[FILENAME_MAX]; - int pipeIx = 1; - int force_lock = 0; - int got_some = 0; - - if (argc >= 2 && argv[1][0]=='-') { - switch (argv[1][1]) { - case 'h': - usage(argv[0]); - exit(1); - case 'F': - force_lock = 1; - break; - default: - fprintf(stderr,"Invalid option '%s'\n",argv[1]); - exit(1); - } - pipeIx = 2; - } - -#ifdef DEBUG - fprintf(stderr, "%s: pid is : %d\n", argv[0], (int)getpid()); -#endif - - strn_cpy(pipename, sizeof(pipename), - (argv[pipeIx] ? argv[pipeIx] : PIPE_DIR)); - - if(*pipename && pipename[strlen(pipename)-1] == '/') { - /* The user wishes us to find a pipe name in the specified */ - /* directory */ - int highest_pipe_num = 0; - DIR *dirp; - struct dirent *direntp; - - dirp = opendir(pipename); - if(!dirp) { - fprintf(stderr, "Can't access pipe directory %s: %s\n", pipename, strerror(errno)); - exit(1); - } - - /* Check the directory for existing pipes */ - - while((direntp=readdir(dirp)) != NULL) { - if(strncmp(direntp->d_name,PIPE_STUBNAME,PIPE_STUBLEN)==0) { - int num = atoi(direntp->d_name+PIPE_STUBLEN+1); - if(num > highest_pipe_num) - highest_pipe_num = num; - } - } - closedir(dirp); - strn_catf(pipename, sizeof(pipename), (highest_pipe_num?"%s.%d":"%s"), - PIPE_STUBNAME, highest_pipe_num); - } /* if */ - - /* read FIFO */ - sn_printf(FIFO1,sizeof(FIFO1),"%s.r",pipename); - /* write FIFO */ - sn_printf(FIFO2,sizeof(FIFO2),"%s.w",pipename); - - /* Check that nobody is running to_erl on this pipe already */ - if ((wfd = open (FIFO1, O_WRONLY|DONT_BLOCK_PLEASE, 0)) >= 0) { - /* Open as server succeeded -- to_erl is already running! */ - close(wfd); - fprintf(stderr, "Another to_erl process already attached to pipe " - "%s.\n", pipename); - if (force_lock) { - fprintf(stderr, "But we proceed anyway by force (-F).\n"); - } - else { - exit(1); - } - } - - if ((rfd = open (FIFO1, O_RDONLY|DONT_BLOCK_PLEASE, 0)) < 0) { -#ifdef DEBUG - fprintf(stderr, "Could not open FIFO %s for reading.\n", FIFO1); -#endif - fprintf(stderr, "No running Erlang on pipe %s: %s\n", pipename, strerror(errno)); - exit(1); - } -#ifdef DEBUG - fprintf(stderr, "to_erl: %s opened for reading\n", FIFO1); -#endif - - if ((wfd = open (FIFO2, O_WRONLY|DONT_BLOCK_PLEASE, 0)) < 0) { -#ifdef DEBUG - fprintf(stderr, "Could not open FIFO %s for writing.\n", FIFO2); -#endif - fprintf(stderr, "No running Erlang on pipe %s: %s\n", pipename, strerror(errno)); - close(rfd); - exit(1); - } -#ifdef DEBUG - fprintf(stderr, "to_erl: %s opened for writing\n", FIFO2); -#endif - - fprintf(stderr, "Attaching to %s (^D to exit)\n\n", pipename); - - /* Set break handler to our handler */ - signal(SIGINT,handle_ctrlc); - - /* - * Save the current state of the terminal, and set raw mode. - */ - if (tcgetattr(0, &tty_rmode) , 0) { - fprintf(stderr, "Cannot get terminals current mode\n"); - exit(-1); - } - tty_smode = tty_rmode; - tty_eof = '\004'; /* Ctrl+D to exit */ -#ifdef DEBUG - show_terminal_settings(&tty_rmode); -#endif - tty_smode.c_iflag = - 1*BRKINT |/*Signal interrupt on break.*/ - 1*IGNPAR |/*Ignore characters with parity errors.*/ - 1*ISTRIP |/*Strip character.*/ - 0; - -#if 0 -0*IGNBRK |/*Ignore break condition.*/ -0*PARMRK |/*Mark parity errors.*/ -0*INPCK |/*Enable input parity check.*/ -0*INLCR |/*Map NL to CR on input.*/ -0*IGNCR |/*Ignore CR.*/ -0*ICRNL |/*Map CR to NL on input.*/ -0*IUCLC |/*Map upper-case to lower-case on input.*/ -0*IXON |/*Enable start/stop output control.*/ -0*IXANY |/*Enable any character to restart output.*/ -0*IXOFF |/*Enable start/stop input control.*/ -0*IMAXBEL|/*Echo BEL on input line too long.*/ -#endif - - tty_smode.c_oflag = - 1*OPOST |/*Post-process output.*/ - 1*ONLCR |/*Map NL to CR-NL on output.*/ -#ifdef XTABS - 1*XTABS |/*Expand tabs to spaces. (Linux)*/ -#endif -#ifdef OXTABS - 1*OXTABS |/*Expand tabs to spaces. (FreeBSD)*/ -#endif -#ifdef NL0 - 1*NL0 |/*Select newline delays*/ -#endif -#ifdef CR0 - 1*CR0 |/*Select carriage-return delays*/ -#endif -#ifdef TAB0 - 1*TAB0 |/*Select horizontal tab delays*/ -#endif -#ifdef BS0 - 1*BS0 |/*Select backspace delays*/ -#endif -#ifdef VT0 - 1*VT0 |/*Select vertical tab delays*/ -#endif -#ifdef FF0 - 1*FF0 |/*Select form feed delays*/ -#endif - 0; - -#if 0 -0*OLCUC |/*Map lower case to upper on output.*/ -0*OCRNL |/*Map CR to NL on output.*/ -0*ONOCR |/*No CR output at column 0.*/ -0*ONLRET |/*NL performs CR function.*/ -0*OFILL |/*Use fill characters for delay.*/ -0*OFDEL |/*Fill is DEL, else NULL.*/ -0*NL1 | -0*CR1 | -0*CR2 | -0*CR3 | -0*TAB1 | -0*TAB2 | -0*TAB3 |/*Expand tabs to spaces.*/ -0*BS1 | -0*VT1 | -0*FF1 | -#endif - - /* JALI: removed setting the tty_smode.c_cflag flags, since this is not */ - /* advisable if this is a *real* terminal, such as the console. In fact */ - /* this may hang the entire machine, deep, deep down (signalling break */ - /* or toggling the abort switch doesn't help) */ - - tty_smode.c_lflag = - 0; - -#if 0 -0*ISIG |/*Enable signals.*/ -0*ICANON |/*Canonical input (erase and kill processing).*/ -0*XCASE |/*Canonical upper/lower presentation.*/ -0*ECHO |/*Enable echo.*/ -0*ECHOE |/*Echo erase character as BS-SP-BS.*/ -0*ECHOK |/*Echo NL after kill character.*/ -0*ECHONL |/*Echo NL.*/ -0*NOFLSH |/*Disable flush after interrupt or quit.*/ -0*TOSTOP |/*Send SIGTTOU for background output.*/ -0*ECHOCTL|/*Echo control characters as ^char, delete as ^?.*/ -0*ECHOPRT|/*Echo erase character as character erased.*/ -0*ECHOKE |/*BS-SP-BS erase entire line on line kill.*/ -0*FLUSHO |/*Output is being flushed.*/ -0*PENDIN |/*Retype pending input at next read or input character.*/ -0*IEXTEN |/*Enable extended (implementation-defined) functions.*/ -#endif - - tty_smode.c_cc[VMIN] =0;/* Note that VMIN is the same as VEOF! */ - tty_smode.c_cc[VTIME] =0;/* Note that VTIME is the same as VEOL! */ - tty_smode.c_cc[VINTR] =3; - - tcsetattr(0, TCSADRAIN, &tty_smode); - -#ifdef DEBUG - show_terminal_settings(&tty_smode); -#endif - /* - * "Write a ^R to the FIFO which causes the other end to redisplay - * the input line." - * This does not seem to work as was intended in old comment above. - * However, this control character is now (R12B-3) used by run_erl - * to trigger the version handshaking between to_erl and run_erl - * at the start of every new to_erl-session. - */ - - if (write(wfd, "\014", 1) < 0) { - fprintf(stderr, "Error in writing ^R to FIFO.\n"); - } - - /* - * read and write - */ - while (1) { - FD_ZERO(&readfds); - FD_SET(0, &readfds); - FD_SET(rfd, &readfds); - if (select(rfd + 1, &readfds, NULL, NULL, NULL) < 0) { - if (recv_sig) { - FD_ZERO(&readfds); - } - else { - fprintf(stderr, "Error in select.\n"); - break; - } - } - len = 0; - - /* - * Read from terminal and write to FIFO - */ - if (recv_sig) { - switch (recv_sig) { - case SIGINT: - fprintf(stderr, "[Break]\n\r"); - buf[0] = '\003'; - len = 1; - break; - case SIGWINCH: - len = window_size_seq(buf,sizeof(buf)); - break; - default: - fprintf(stderr,"Unexpected signal: %u\n",recv_sig); - } - recv_sig = 0; - } - else if (FD_ISSET(0, &readfds)) { - len = read(0, buf, sizeof(buf)); - if (len <= 0) { - close(rfd); - close(wfd); - if (len < 0) { - fprintf(stderr, "Error in reading from stdin.\n"); - } else { - fprintf(stderr, "[EOF]\n\r"); - } - break; - } - /* check if there is an eof character in input */ - for (i = 0; i < len && buf[i] != tty_eof; i++); - if (buf[i] == tty_eof) { - fprintf(stderr, "[Quit]\n\r"); - break; - } - } - - if (len) { -#ifdef DEBUG - if(write(1, buf, len)); -#endif - if (write_all(wfd, buf, len) != len) { - fprintf(stderr, "Error in writing to FIFO.\n"); - close(rfd); - close(wfd); - break; - } - STATUS("\" OK\r\n"); - } - - /* - * Read from FIFO, write to terminal. - */ - if (FD_ISSET(rfd, &readfds)) { - STATUS("FIFO read: "); - len = read(rfd, buf, BUFSIZ); - if (len < 0 && errno == EAGAIN) { - /* - * No data this time, but the writing end of the FIFO is still open. - * Do nothing. - */ - ; - } else if (len <= 0) { - /* - * Either an error or end of file. In either case, break out - * of the loop. - */ - close(rfd); - close(wfd); - if (len < 0) { - fprintf(stderr, "Error in reading from FIFO.\n"); - } else - fprintf(stderr, "[End]\n\r"); - break; - } else { - if (!got_some) { - if ((len=version_handshake(buf,len,wfd)) < 0) { - close(rfd); - close(wfd); - break; - } - if (protocol_ver >= 1) { - /* Tell run_erl size of terminal window */ - signal(SIGWINCH, handle_sigwinch); - raise(SIGWINCH); - } - got_some = 1; - } - - /* - * We successfully read at least one character. Write what we got. - */ - STATUS("Terminal write: \""); - if (write_all(1, buf, len) != len) { - fprintf(stderr, "Error in writing to terminal.\n"); - close(rfd); - close(wfd); - break; - } - STATUS("\" OK\r\n"); - } - } - } - - /* - * Reset terminal characterstics - * XXX - */ - tcsetattr(0, TCSADRAIN, &tty_rmode); - return 0; -} - -/* Call write() until entire buffer has been written or error. - * Return len or -1. - */ -static int write_all(int fd, const char* buf, int len) -{ - int left = len; - int written; - while (left) { - written = write(fd,buf,left); - if (written < 0) { - return -1; - } - left -= written; - buf += written; - } - return len; -} - -static int window_size_seq(char* buf, size_t bufsz) -{ -#ifdef TIOCGWINSZ - struct winsize ws; - static const char prefix[] = "\033_"; - static const char suffix[] = "\033\\"; - /* This Esc sequence is called "Application Program Command" - and seems suitable to use for our own customized stuff. */ - - if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == 0) { - int len = sn_printf(buf, bufsz, "%swinsize=%u,%u%s", - prefix, ws.ws_col, ws.ws_row, suffix); - return len; - } -#endif /* TIOCGWINSZ */ - return 0; -} - -/* to_erl run_erl - * | | - * |---------- '\022' -------->| (session start) - * | | - * |<---- "[run_erl v1-0]" ----| (version interval) - * | | - * |--- Esc_"version=1"Esc\ -->| (common version) - * | | - */ -static int version_handshake(char* buf, int len, int wfd) -{ - unsigned re_high=0, re_low; - char *end = find_str(buf,len,"]\n"); - - if (end && sscanf(buf,"[run_erl v%u-%u",&re_high,&re_low)==2) { - char wbuf[30]; - int wlen; - - if (re_low > RUN_ERL_HI_VER || re_high < RUN_ERL_LO_VER) { - fprintf(stderr,"Incompatible versions: to_erl=v%u-%u run_erl=v%u-%u\n", - RUN_ERL_HI_VER, RUN_ERL_LO_VER, re_high, re_low); - return -1; - } - /* Choose highest common version */ - protocol_ver = re_high < RUN_ERL_HI_VER ? re_high : RUN_ERL_HI_VER; - - wlen = sn_printf(wbuf, sizeof(wbuf), "\033_version=%u\033\\", - protocol_ver); - if (write_all(wfd, wbuf, wlen) < 0) { - fprintf(stderr,"Failed to send version handshake\n"); - return -1; - } - end += 2; - len -= (end-buf); - memmove(buf,end,len); - - } - else { /* we assume old run_erl without version handshake */ - protocol_ver = 0; - } - - if (re_high != RUN_ERL_HI_VER) { - fprintf(stderr,"run_erl has different version, " - "using common protocol level %u\n", protocol_ver); - } - - return len; -} - -#ifdef DEBUG -#define S(x) ((x) > 0 ? 1 : 0) +#include "to_erl_common.h" -static void show_terminal_settings(struct termios *t) -{ - fprintf(stderr,"c_iflag:\n"); - fprintf(stderr,"Signal interrupt on break: BRKINT %d\n", S(t->c_iflag & BRKINT)); - fprintf(stderr,"Map CR to NL on input: ICRNL %d\n", S(t->c_iflag & ICRNL)); - fprintf(stderr,"Ignore break condition: IGNBRK %d\n", S(t->c_iflag & IGNBRK)); - fprintf(stderr,"Ignore CR: IGNCR %d\n", S(t->c_iflag & IGNCR)); - fprintf(stderr,"Ignore char with par. err's: IGNPAR %d\n", S(t->c_iflag & IGNPAR)); - fprintf(stderr,"Map NL to CR on input: INLCR %d\n", S(t->c_iflag & INLCR)); - fprintf(stderr,"Enable input parity check: INPCK %d\n", S(t->c_iflag & INPCK)); - fprintf(stderr,"Strip character ISTRIP %d\n", S(t->c_iflag & ISTRIP)); - fprintf(stderr,"Enable start/stop input ctrl IXOFF %d\n", S(t->c_iflag & IXOFF)); - fprintf(stderr,"ditto output ctrl IXON %d\n", S(t->c_iflag & IXON)); - fprintf(stderr,"Mark parity errors PARMRK %d\n", S(t->c_iflag & PARMRK)); - fprintf(stderr,"\n"); - fprintf(stderr,"c_oflag:\n"); - fprintf(stderr,"Perform output processing OPOST %d\n", S(t->c_oflag & OPOST)); - fprintf(stderr,"\n"); - fprintf(stderr,"c_cflag:\n"); - fprintf(stderr,"Ignore modem status lines CLOCAL %d\n", S(t->c_cflag & CLOCAL)); - fprintf(stderr,"\n"); - fprintf(stderr,"c_local:\n"); - fprintf(stderr,"Enable echo ECHO %d\n", S(t->c_lflag & ECHO)); - fprintf(stderr,"\n"); - fprintf(stderr,"c_cc:\n"); - fprintf(stderr,"c_cc[VEOF] %d\n", t->c_cc[VEOF]); +int main(int argc,char **argv) { + return to_erl(argc,argv); } -#endif |