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authorSverker Eriksson <sverker@erlang.org>2016-11-17 16:50:36 +0100
committerSverker Eriksson <sverker@erlang.org>2016-11-17 16:58:11 +0100
commit9a1110de820988afb4e9d195a59872b214de2d26 (patch)
tree2a0badf2960e374a71eee53d17e454de260f48a0 /erts/emulator/beam/break.c
parent4d7f8c2ab1a7b8c204d932166837b58d08de6506 (diff)
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erts: Refactor crash dumping with cbprintf
Instead of passing around a file descriptor use a function pointer to facilitate more advanced backend write logic such as size limitation or compression.
Diffstat (limited to 'erts/emulator/beam/break.c')
-rw-r--r--erts/emulator/beam/break.c97
1 files changed, 50 insertions, 47 deletions
diff --git a/erts/emulator/beam/break.c b/erts/emulator/beam/break.c
index aa9bed5714..2e8a384dec 100644
--- a/erts/emulator/beam/break.c
+++ b/erts/emulator/beam/break.c
@@ -49,17 +49,17 @@ void erl_crash_dump_v(char *file, int line, char* fmt, va_list args);
static void bin_check(void);
#endif
-static void print_garb_info(int to, void *to_arg, Process* p);
+static void print_garb_info(fmtfn_t to, void *to_arg, Process* p);
#ifdef OPPROF
static void dump_frequencies(void);
#endif
-static void dump_attributes(int to, void *to_arg, byte* ptr, int size);
+static void dump_attributes(fmtfn_t to, void *to_arg, byte* ptr, int size);
extern char* erts_system_version[];
static void
-port_info(int to, void *to_arg)
+port_info(fmtfn_t to, void *to_arg)
{
int i, max = erts_ptab_max(&erts_port);
for (i = 0; i < max; i++) {
@@ -70,7 +70,7 @@ port_info(int to, void *to_arg)
}
void
-process_info(int to, void *to_arg)
+process_info(fmtfn_t to, void *to_arg)
{
int i, max = erts_ptab_max(&erts_proc);
for (i = 0; i < max; i++) {
@@ -147,14 +147,14 @@ process_killer(void)
typedef struct {
int is_first;
- int to;
+ fmtfn_t to;
void *to_arg;
} PrintMonitorContext;
static void doit_print_link(ErtsLink *lnk, void *vpcontext)
{
PrintMonitorContext *pcontext = vpcontext;
- int to = pcontext->to;
+ fmtfn_t to = pcontext->to;
void *to_arg = pcontext->to_arg;
if (pcontext->is_first) {
@@ -169,7 +169,7 @@ static void doit_print_link(ErtsLink *lnk, void *vpcontext)
static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext)
{
PrintMonitorContext *pcontext = vpcontext;
- int to = pcontext->to;
+ fmtfn_t to = pcontext->to;
void *to_arg = pcontext->to_arg;
char *prefix = ", ";
@@ -196,7 +196,7 @@ static void doit_print_monitor(ErtsMonitor *mon, void *vpcontext)
/* Display info about an individual Erlang process */
void
-print_process_info(int to, void *to_arg, Process *p)
+print_process_info(fmtfn_t to, void *to_arg, Process *p)
{
time_t approx_started;
int garbing = 0;
@@ -299,7 +299,7 @@ print_process_info(int to, void *to_arg, Process *p)
/* display the links only if there are any*/
if (ERTS_P_LINKS(p) || ERTS_P_MONITORS(p)) {
- PrintMonitorContext context = {1,to};
+ PrintMonitorContext context = {1, to, to_arg};
erts_print(to, to_arg,"Link list: [");
erts_doforall_links(ERTS_P_LINKS(p), &doit_print_link, &context);
erts_doforall_monitors(ERTS_P_MONITORS(p), &doit_print_monitor, &context);
@@ -347,7 +347,7 @@ print_process_info(int to, void *to_arg, Process *p)
}
static void
-print_garb_info(int to, void *to_arg, Process* p)
+print_garb_info(fmtfn_t to, void *to_arg, Process* p)
{
#ifdef ERTS_SMP
/* ERTS_SMP: A scheduler is probably concurrently doing gc... */
@@ -364,7 +364,7 @@ print_garb_info(int to, void *to_arg, Process* p)
}
void
-info(int to, void *to_arg)
+info(fmtfn_t to, void *to_arg)
{
erts_memory(&to, to_arg, NULL, THE_NON_VALUE);
atom_info(to, to_arg);
@@ -380,7 +380,7 @@ info(int to, void *to_arg)
}
void
-loaded(int to, void *to_arg)
+loaded(fmtfn_t to, void *to_arg)
{
int i;
int old = 0;
@@ -477,7 +477,7 @@ loaded(int to, void *to_arg)
static void
-dump_attributes(int to, void *to_arg, byte* ptr, int size)
+dump_attributes(fmtfn_t to, void *to_arg, byte* ptr, int size)
{
while (size-- > 0) {
erts_print(to, to_arg, "%02X", *ptr++);
@@ -678,6 +678,8 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
int secs;
int env_erl_crash_dump_seconds_set = 1;
int i;
+ fmtfn_t to = &erts_write_fd;
+ void* to_arg;
if (ERTS_SOMEONE_IS_CRASH_DUMPING)
return;
@@ -768,39 +770,40 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
fd = open(dumpname,O_WRONLY | O_CREAT | O_TRUNC,0640);
if (fd < 0)
return; /* Can't create the crash dump, skip it */
+ to_arg = (void*)&fd;
time(&now);
- erts_fdprintf(fd, "=erl_crash_dump:0.3\n%s", ctime(&now));
+ erts_cbprintf(to, to_arg, "=erl_crash_dump:0.3\n%s", ctime(&now));
if (file != NULL)
- erts_fdprintf(fd, "The error occurred in file %s, line %d\n", file, line);
+ erts_cbprintf(to, to_arg, "The error occurred in file %s, line %d\n", file, line);
if (fmt != NULL && *fmt != '\0') {
- erts_fdprintf(fd, "Slogan: ");
- erts_vfdprintf(fd, fmt, args);
+ erts_cbprintf(to, to_arg, "Slogan: ");
+ erts_vcbprintf(to, to_arg, fmt, args);
}
- erts_fdprintf(fd, "System version: ");
- erts_print_system_version(fd, NULL, NULL);
+ erts_cbprintf(to, to_arg, "System version: ");
+ erts_print_system_version(to, to_arg, NULL);
#if ERTS_SAVED_COMPILE_TIME
- erts_fdprintf(fd, "%s\n", "Compiled: " ERLANG_COMPILE_DATE);
+ erts_cbprintf(to, to_arg, "%s\n", "Compiled: " ERLANG_COMPILE_DATE);
#endif
- erts_fdprintf(fd, "Taints: ");
- erts_print_nif_taints(fd, NULL);
- erts_fdprintf(fd, "Atoms: %d\n", atom_table_size());
+ erts_cbprintf(to, to_arg, "Taints: ");
+ erts_print_nif_taints(to, to_arg);
+ erts_cbprintf(to, to_arg, "Atoms: %d\n", atom_table_size());
#ifdef USE_THREADS
/* We want to note which thread it was that called erts_exit */
if (erts_get_scheduler_data()) {
- erts_fdprintf(fd, "Calling Thread: scheduler:%d\n",
+ erts_cbprintf(to, to_arg, "Calling Thread: scheduler:%d\n",
erts_get_scheduler_data()->no);
} else {
if (!erts_thr_getname(erts_thr_self(), dumpnamebuf, MAXPATHLEN))
- erts_fdprintf(fd, "Calling Thread: %s\n", dumpnamebuf);
+ erts_cbprintf(to, to_arg, "Calling Thread: %s\n", dumpnamebuf);
else
- erts_fdprintf(fd, "Calling Thread: %p\n", erts_thr_self());
+ erts_cbprintf(to, to_arg, "Calling Thread: %p\n", erts_thr_self());
}
#else
- erts_fdprintf(fd, "Calling Thread: scheduler:1\n");
+ erts_cbprintf(to, to_arg, "Calling Thread: scheduler:1\n");
#endif
#if defined(ERTS_HAVE_TRY_CATCH)
@@ -815,8 +818,8 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
*/
for (i = 0; i < erts_no_schedulers; i++) {
ERTS_SYS_TRY_CATCH(
- erts_print_scheduler_info(fd, NULL, ERTS_SCHEDULER_IX(i)),
- erts_fdprintf(fd, "** crashed **\n"));
+ erts_print_scheduler_info(to, to_arg, ERTS_SCHEDULER_IX(i)),
+ erts_cbprintf(to, to_arg, "** crashed **\n"));
}
#endif
@@ -847,38 +850,38 @@ erl_crash_dump_v(char *file, int line, char* fmt, va_list args)
#ifndef ERTS_HAVE_TRY_CATCH
/* This is safe to call here, as all schedulers are blocked */
for (i = 0; i < erts_no_schedulers; i++) {
- erts_print_scheduler_info(fd, NULL, ERTS_SCHEDULER_IX(i));
+ erts_print_scheduler_info(to, to_arg, ERTS_SCHEDULER_IX(i));
}
#endif
- info(fd, NULL); /* General system info */
+ info(to, to_arg); /* General system info */
if (erts_ptab_initialized(&erts_proc))
- process_info(fd, NULL); /* Info about each process and port */
- db_info(fd, NULL, 0);
- erts_print_bif_timer_info(fd, NULL);
- distribution_info(fd, NULL);
- erts_fdprintf(fd, "=loaded_modules\n");
- loaded(fd, NULL);
- erts_dump_fun_entries(fd, NULL);
- erts_deep_process_dump(fd, NULL);
- erts_fdprintf(fd, "=atoms\n");
- dump_atoms(fd, NULL);
+ process_info(to, to_arg); /* Info about each process and port */
+ db_info(to, to_arg, 0);
+ erts_print_bif_timer_info(to, to_arg);
+ distribution_info(to, to_arg);
+ erts_cbprintf(to, to_arg, "=loaded_modules\n");
+ loaded(to, to_arg);
+ erts_dump_fun_entries(to, to_arg);
+ erts_deep_process_dump(to, to_arg);
+ erts_cbprintf(to, to_arg, "=atoms\n");
+ dump_atoms(to, to_arg);
/* Keep the instrumentation data at the end of the dump */
if (erts_instr_memory_map || erts_instr_stat) {
- erts_fdprintf(fd, "=instr_data\n");
+ erts_cbprintf(to, to_arg, "=instr_data\n");
if (erts_instr_stat) {
- erts_fdprintf(fd, "=memory_status\n");
- erts_instr_dump_stat_to_fd(fd, 0);
+ erts_cbprintf(to, to_arg, "=memory_status\n");
+ erts_instr_dump_stat_to(to, to_arg, 0);
}
if (erts_instr_memory_map) {
- erts_fdprintf(fd, "=memory_map\n");
- erts_instr_dump_memory_map_to_fd(fd);
+ erts_cbprintf(to, to_arg, "=memory_map\n");
+ erts_instr_dump_memory_map_to(to, to_arg);
}
}
- erts_fdprintf(fd, "=end\n");
+ erts_cbprintf(to, to_arg, "=end\n");
close(fd);
erts_fprintf(stderr,"done\n");
}