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[PATCH 2/4] Makes all those related functions receive the FILE pointer

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  [PATCH 2/4] Makes all those related functions receive the FILE pointer yuzhoujian <ufo19890607@gmail.com> - 2017-09-18 08:00 +0200
    Re: [PATCH 2/4] Makes all those related functions receive the FILE  pointer Jiri Olsa <jolsa@redhat.com> - 2017-09-22 11:10 +0200
      Re: [PATCH 2/4] Makes all those related functions receive the FILE  pointer Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-09-22 16:20 +0200
    Re: [PATCH 2/4] Makes all those related functions receive the FILE  pointer Jiri Olsa <jolsa@redhat.com> - 2017-09-22 11:10 +0200
      Re: [PATCH 2/4] Makes all those related functions receive the FILE  pointer Arnaldo Carvalho de Melo <acme@kernel.org> - 2017-09-22 16:20 +0200

#1733651 — [PATCH 2/4] Makes all those related functions receive the FILE pointer

Signed-off-by: yuzhoujian <yuzhoujian@didichuxing.com>
---
 tools/perf/builtin-script.c | 247 ++++++++++++++++++++++++--------------------
 1 file changed, 136 insertions(+), 111 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 91b5225..f709f6f 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -486,8 +486,8 @@ static int perf_session__check_output_opt(struct perf_session *session)
 	return 0;
 }
 
-static void print_sample_iregs(struct perf_sample *sample,
-			  struct perf_event_attr *attr)
+static void fprint_sample_iregs(struct perf_sample *sample,
+			  struct perf_event_attr *attr, FILE *fp)
 {
 	struct regs_dump *regs = &sample->intr_regs;
 	uint64_t mask = attr->sample_regs_intr;
@@ -502,9 +502,9 @@ static void print_sample_iregs(struct perf_sample *sample,
 	}
 }
 
-static void print_sample_start(struct perf_sample *sample,
+static void fprint_sample_start(struct perf_sample *sample,
 			       struct thread *thread,
-			       struct perf_evsel *evsel)
+			       struct perf_evsel *evsel, FILE *fp)
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	unsigned long secs;
@@ -557,9 +557,10 @@ static void print_sample_start(struct perf_sample *sample,
 	return br->flags.predicted ? 'P' : 'M';
 }
 
-static void print_sample_brstack(struct perf_sample *sample,
+static void fprint_sample_brstack(struct perf_sample *sample,
 				 struct thread *thread,
-				 struct perf_event_attr *attr)
+				 struct perf_event_attr *attr,
+				 FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	struct addr_location alf, alt;
@@ -582,14 +583,14 @@ static void print_sample_brstack(struct perf_sample *sample,
 		printf("0x%"PRIx64, from);
 		if (PRINT_FIELD(DSO)) {
 			printf("(");
-			map__fprintf_dsoname(alf.map, stdout);
+			map__fprintf_dsoname(alf.map, fp);
 			printf(")");
 		}
 
 		printf("/0x%"PRIx64, to);
 		if (PRINT_FIELD(DSO)) {
 			printf("(");
-			map__fprintf_dsoname(alt.map, stdout);
+			map__fprintf_dsoname(alt.map, fp);
 			printf(")");
 		}
 
@@ -601,9 +602,10 @@ static void print_sample_brstack(struct perf_sample *sample,
 	}
 }
 
-static void print_sample_brstacksym(struct perf_sample *sample,
+static void fprint_sample_brstacksym(struct perf_sample *sample,
 				    struct thread *thread,
-				    struct perf_event_attr *attr)
+				    struct perf_event_attr *attr,
+				    FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	struct addr_location alf, alt;
@@ -627,17 +629,17 @@ static void print_sample_brstacksym(struct perf_sample *sample,
 		if (alt.map)
 			alt.sym = map__find_symbol(alt.map, alt.addr);
 
-		symbol__fprintf_symname_offs(alf.sym, &alf, stdout);
+		symbol__fprintf_symname_offs(alf.sym, &alf, fp);
 		if (PRINT_FIELD(DSO)) {
 			printf("(");
-			map__fprintf_dsoname(alf.map, stdout);
+			map__fprintf_dsoname(alf.map, fp);
 			printf(")");
 		}
 		putchar('/');
-		symbol__fprintf_symname_offs(alt.sym, &alt, stdout);
+		symbol__fprintf_symname_offs(alt.sym, &alt, fp);
 		if (PRINT_FIELD(DSO)) {
 			printf("(");
-			map__fprintf_dsoname(alt.map, stdout);
+			map__fprintf_dsoname(alt.map, fp);
 			printf(")");
 		}
 		printf("/%c/%c/%c/%d ",
@@ -648,9 +650,10 @@ static void print_sample_brstacksym(struct perf_sample *sample,
 	}
 }
 
-static void print_sample_brstackoff(struct perf_sample *sample,
+static void fprint_sample_brstackoff(struct perf_sample *sample,
 				    struct thread *thread,
-				    struct perf_event_attr *attr)
+				    struct perf_event_attr *attr,
+				    FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	struct addr_location alf, alt;
@@ -677,13 +680,13 @@ static void print_sample_brstackoff(struct perf_sample *sample,
 		printf("0x%"PRIx64, from);
 		if (PRINT_FIELD(DSO)) {
 			printf("(");
-			map__fprintf_dsoname(alf.map, stdout);
+			map__fprintf_dsoname(alf.map, fp);
 			printf(")");
 		}
 		printf("/0x%"PRIx64, to);
 		if (PRINT_FIELD(DSO)) {
 			printf("(");
-			map__fprintf_dsoname(alt.map, stdout);
+			map__fprintf_dsoname(alt.map, fp);
 			printf(")");
 		}
 		printf("/%c/%c/%c/%d ",
@@ -757,9 +760,9 @@ static int grab_bb(u8 *buffer, u64 start, u64 end,
 	return len;
 }
 
-static void print_jump(uint64_t ip, struct branch_entry *en,
+static void fprint_jump(uint64_t ip, struct branch_entry *en,
 		       struct perf_insn *x, u8 *inbuf, int len,
-		       int insn)
+		       int insn, FILE *fp)
 {
 	printf("\t%016" PRIx64 "\t%-30s\t#%s%s%s%s",
 	       ip,
@@ -776,9 +779,9 @@ static void print_jump(uint64_t ip, struct branch_entry *en,
 	putchar('\n');
 }
 
-static void print_ip_sym(struct thread *thread, u8 cpumode, int cpu,
+static void fprint_ip_sym(struct thread *thread, u8 cpumode, int cpu,
 			 uint64_t addr, struct symbol **lastsym,
-			 struct perf_event_attr *attr)
+			 struct perf_event_attr *attr, FILE *fp)
 {
 	struct addr_location al;
 	int off;
@@ -809,15 +812,16 @@ static void print_ip_sym(struct thread *thread, u8 cpumode, int cpu,
 		printf("%+d", off);
 	putchar(':');
 	if (PRINT_FIELD(SRCLINE))
-		map__fprintf_srcline(al.map, al.addr, "\t", stdout);
+		map__fprintf_srcline(al.map, al.addr, "\t", fp);
 	putchar('\n');
 	*lastsym = al.sym;
 }
 
-static void print_sample_brstackinsn(struct perf_sample *sample,
+static void fprint_sample_brstackinsn(struct perf_sample *sample,
 				     struct thread *thread,
 				     struct perf_event_attr *attr,
-				     struct machine *machine)
+				     struct machine *machine,
+				     FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	u64 start, end;
@@ -843,10 +847,10 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 			br->entries[nr-1].from,
 			machine, thread, &x.is64bit, &x.cpumode, false);
 	if (len > 0) {
-		print_ip_sym(thread, x.cpumode, x.cpu,
-			     br->entries[nr - 1].from, &lastsym, attr);
-		print_jump(br->entries[nr - 1].from, &br->entries[nr - 1],
-			    &x, buffer, len, 0);
+		fprint_ip_sym(thread, x.cpumode, x.cpu,
+			     br->entries[nr - 1].from, &lastsym, attr, fp);
+		fprint_jump(br->entries[nr - 1].from, &br->entries[nr - 1],
+			    &x, buffer, len, 0, fp);
 	}
 
 	/* Print all blocks */
@@ -872,9 +876,9 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 		for (off = 0;; off += ilen) {
 			uint64_t ip = start + off;
 
-			print_ip_sym(thread, x.cpumode, x.cpu, ip, &lastsym, attr);
+			fprint_ip_sym(thread, x.cpumode, x.cpu, ip, &lastsym, attr, fp);
 			if (ip == end) {
-				print_jump(ip, &br->entries[i], &x, buffer + off, len - off, insn);
+				fprint_jump(ip, &br->entries[i], &x, buffer + off, len - off, insn, fp);
 				break;
 			} else {
 				printf("\t%016" PRIx64 "\t%s\n", ip,
@@ -901,7 +905,7 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 	start = br->entries[0].to;
 	end = sample->ip;
 	len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, true);
-	print_ip_sym(thread, x.cpumode, x.cpu, start, &lastsym, attr);
+	fprint_ip_sym(thread, x.cpumode, x.cpu, start, &lastsym, attr, fp);
 	if (len <= 0) {
 		/* Print at least last IP if basic block did not work */
 		len = grab_bb(buffer, sample->ip, sample->ip,
@@ -921,9 +925,9 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 	}
 }
 
-static void print_sample_addr(struct perf_sample *sample,
+static void fprint_sample_addr(struct perf_sample *sample,
 			  struct thread *thread,
-			  struct perf_event_attr *attr)
+			  struct perf_event_attr *attr, FILE *fp)
 {
 	struct addr_location al;
 
@@ -937,22 +941,23 @@ static void print_sample_addr(struct perf_sample *sample,
 	if (PRINT_FIELD(SYM)) {
 		printf(" ");
 		if (PRINT_FIELD(SYMOFFSET))
-			symbol__fprintf_symname_offs(al.sym, &al, stdout);
+			symbol__fprintf_symname_offs(al.sym, &al, fp);
 		else
-			symbol__fprintf_symname(al.sym, stdout);
+			symbol__fprintf_symname(al.sym, fp);
 	}
 
 	if (PRINT_FIELD(DSO)) {
 		printf(" (");
-		map__fprintf_dsoname(al.map, stdout);
+		map__fprintf_dsoname(al.map, fp);
 		printf(")");
 	}
 }
 
-static void print_sample_callindent(struct perf_sample *sample,
+static void fprint_sample_callindent(struct perf_sample *sample,
 				    struct perf_evsel *evsel,
 				    struct thread *thread,
-				    struct addr_location *al)
+				    struct addr_location *al,
+				    FILE *fp)
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	size_t depth = thread_stack__depth(thread);
@@ -1005,10 +1010,11 @@ static void print_sample_callindent(struct perf_sample *sample,
 		printf("%*s", spacing - len, "");
 }
 
-static void print_insn(struct perf_sample *sample,
+static void fprint_insn(struct perf_sample *sample,
 		       struct perf_event_attr *attr,
 		       struct thread *thread,
-		       struct machine *machine)
+		       struct machine *machine,
+		       FILE *fp)
 {
 	if (PRINT_FIELD(INSNLEN))
 		printf(" ilen: %d", sample->insn_len);
@@ -1020,21 +1026,22 @@ static void print_insn(struct perf_sample *sample,
 			printf(" %02x", (unsigned char)sample->insn[i]);
 	}
 	if (PRINT_FIELD(BRSTACKINSN))
-		print_sample_brstackinsn(sample, thread, attr, machine);
+		fprint_sample_brstackinsn(sample, thread, attr, machine, fp);
 }
 
-static void print_sample_bts(struct perf_sample *sample,
+static void fprint_sample_bts(struct perf_sample *sample,
 			     struct perf_evsel *evsel,
 			     struct thread *thread,
 			     struct addr_location *al,
-			     struct machine *machine)
+			     struct machine *machine,
+			     FILE *fp)
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	unsigned int type = output_type(attr->type);
 	bool print_srcline_last = false;
 
 	if (PRINT_FIELD(CALLINDENT))
-		print_sample_callindent(sample, evsel, thread, al);
+		fprint_sample_callindent(sample, evsel, thread, al, fp);
 
 	/* print branch_from information */
 	if (PRINT_FIELD(IP)) {
@@ -1055,7 +1062,7 @@ static void print_sample_bts(struct perf_sample *sample,
 		} else
 			putchar('\n');
 
-		sample__fprintf_sym(sample, al, 0, print_opts, cursor, stdout);
+		sample__fprintf_sym(sample, al, 0, print_opts, cursor, fp);
 	}
 
 	/* print branch_to information */
@@ -1063,13 +1070,13 @@ static void print_sample_bts(struct perf_sample *sample,
 	    ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
 	     !output[type].user_set)) {
 		printf(" => ");
-		print_sample_addr(sample, thread, attr);
+		fprint_sample_addr(sample, thread, attr, fp);
 	}
 
 	if (print_srcline_last)
-		map__fprintf_srcline(al->map, al->addr, "\n  ", stdout);
+		map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 
-	print_insn(sample, attr, thread, machine);
+	fprint_insn(sample, attr, thread, machine, fp);
 
 	printf("\n");
 }
@@ -1094,7 +1101,7 @@ static void print_sample_bts(struct perf_sample *sample,
 	{0, NULL}
 };
 
-static void print_sample_flags(u32 flags)
+static void fprint_sample_flags(u32 flags, FILE *fp)
 {
 	const char *chars = PERF_IP_FLAG_CHARS;
 	const int n = strlen(PERF_IP_FLAG_CHARS);
@@ -1130,15 +1137,17 @@ struct printer_data {
 	int line_no;
 	bool hit_nul;
 	bool is_printable;
+	FILE *fp;
 };
 
 static void
-print_sample_bpf_output_printer(enum binary_printer_ops op,
+fprint_sample_bpf_output_printer(enum binary_printer_ops op,
 				unsigned int val,
 				void *extra)
 {
 	unsigned char ch = (unsigned char)val;
 	struct printer_data *printer_data = extra;
+	FILE *fp = printer_data->fp;
 
 	switch (op) {
 	case BINARY_PRINT_DATA_BEGIN:
@@ -1191,31 +1200,31 @@ struct printer_data {
 	}
 }
 
-static void print_sample_bpf_output(struct perf_sample *sample)
+static void fprint_sample_bpf_output(struct perf_sample *sample, FILE *fp)
 {
 	unsigned int nr_bytes = sample->raw_size;
-	struct printer_data printer_data = {0, false, true};
+	struct printer_data printer_data = {0, false, true, fp};
 
 	print_binary(sample->raw_data, nr_bytes, 8,
-		     print_sample_bpf_output_printer, &printer_data);
+		     fprint_sample_bpf_output_printer, &printer_data);
 
 	if (printer_data.is_printable && printer_data.hit_nul)
 		printf("%17s \"%s\"\n", "BPF string:",
 		       (char *)(sample->raw_data));
 }
 
-static void print_sample_spacing(int len, int spacing)
+static void fprint_sample_spacing(int len, int spacing, FILE *fp)
 {
 	if (len > 0 && len < spacing)
 		printf("%*s", spacing - len, "");
 }
 
-static void print_sample_pt_spacing(int len)
+static void fprint_sample_pt_spacing(int len, FILE *fp)
 {
-	print_sample_spacing(len, 34);
+	fprint_sample_spacing(len, 34, fp);
 }
 
-static void print_sample_synth_ptwrite(struct perf_sample *sample)
+static void fprint_sample_synth_ptwrite(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_ptwrite *data = perf_sample__synth_ptr(sample);
 	int len;
@@ -1225,10 +1234,10 @@ static void print_sample_synth_ptwrite(struct perf_sample *sample)
 
 	len = printf(" IP: %u payload: %#" PRIx64 " ",
 		     data->ip, le64_to_cpu(data->payload));
-	print_sample_pt_spacing(len);
+	fprint_sample_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_mwait(struct perf_sample *sample)
+static void fprint_sample_synth_mwait(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_mwait *data = perf_sample__synth_ptr(sample);
 	int len;
@@ -1238,10 +1247,10 @@ static void print_sample_synth_mwait(struct perf_sample *sample)
 
 	len = printf(" hints: %#x extensions: %#x ",
 		     data->hints, data->extensions);
-	print_sample_pt_spacing(len);
+	fprint_sample_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_pwre(struct perf_sample *sample)
+static void fprint_sample_synth_pwre(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_pwre *data = perf_sample__synth_ptr(sample);
 	int len;
@@ -1251,10 +1260,10 @@ static void print_sample_synth_pwre(struct perf_sample *sample)
 
 	len = printf(" hw: %u cstate: %u sub-cstate: %u ",
 		     data->hw, data->cstate, data->subcstate);
-	print_sample_pt_spacing(len);
+	fprint_sample_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_exstop(struct perf_sample *sample)
+static void fprint_sample_synth_exstop(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_exstop *data = perf_sample__synth_ptr(sample);
 	int len;
@@ -1263,10 +1272,10 @@ static void print_sample_synth_exstop(struct perf_sample *sample)
 		return;
 
 	len = printf(" IP: %u ", data->ip);
-	print_sample_pt_spacing(len);
+	fprint_sample_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_pwrx(struct perf_sample *sample)
+static void fprint_sample_synth_pwrx(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_pwrx *data = perf_sample__synth_ptr(sample);
 	int len;
@@ -1277,10 +1286,10 @@ static void print_sample_synth_pwrx(struct perf_sample *sample)
 	len = printf(" deepest cstate: %u last cstate: %u wake reason: %#x ",
 		     data->deepest_cstate, data->last_cstate,
 		     data->wake_reason);
-	print_sample_pt_spacing(len);
+	fprint_sample_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_cbr(struct perf_sample *sample)
+static void fprint_sample_synth_cbr(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_cbr *data = perf_sample__synth_ptr(sample);
 	unsigned int percent, freq;
@@ -1295,30 +1304,30 @@ static void print_sample_synth_cbr(struct perf_sample *sample)
 		percent = (5 + (1000 * data->cbr) / data->max_nonturbo) / 10;
 		len += printf("(%3u%%) ", percent);
 	}
-	print_sample_pt_spacing(len);
+	fprint_sample_pt_spacing(len, fp);
 }
 
-static void print_sample_synth(struct perf_sample *sample,
-			       struct perf_evsel *evsel)
+static void fprint_sample_synth(struct perf_sample *sample,
+			       struct perf_evsel *evsel, FILE *fp)
 {
 	switch (evsel->attr.config) {
 	case PERF_SYNTH_INTEL_PTWRITE:
-		print_sample_synth_ptwrite(sample);
+		fprint_sample_synth_ptwrite(sample, fp);
 		break;
 	case PERF_SYNTH_INTEL_MWAIT:
-		print_sample_synth_mwait(sample);
+		fprint_sample_synth_mwait(sample, fp);
 		break;
 	case PERF_SYNTH_INTEL_PWRE:
-		print_sample_synth_pwre(sample);
+		fprint_sample_synth_pwre(sample, fp);
 		break;
 	case PERF_SYNTH_INTEL_EXSTOP:
-		print_sample_synth_exstop(sample);
+		fprint_sample_synth_exstop(sample, fp);
 		break;
 	case PERF_SYNTH_INTEL_PWRX:
-		print_sample_synth_pwrx(sample);
+		fprint_sample_synth_pwrx(sample, fp);
 		break;
 	case PERF_SYNTH_INTEL_CBR:
-		print_sample_synth_cbr(sample);
+		fprint_sample_synth_cbr(sample, fp);
 		break;
 	default:
 		break;
@@ -1354,7 +1363,7 @@ static int perf_evlist__max_name_len(struct perf_evlist *evlist)
 	return max;
 }
 
-static size_t data_src__printf(u64 data_src)
+static size_t data_src__fprintf(u64 data_src, FILE *fp)
 {
 	struct mem_info mi = { .data_src.val = data_src };
 	char decode[100];
@@ -1374,7 +1383,7 @@ static size_t data_src__printf(u64 data_src)
 static void process_event(struct perf_script *script,
 			  struct perf_sample *sample, struct perf_evsel *evsel,
 			  struct addr_location *al,
-			  struct machine *machine)
+			  struct machine *machine, FILE *fp)
 {
 	struct thread *thread = al->thread;
 	struct perf_event_attr *attr = &evsel->attr;
@@ -1383,7 +1392,7 @@ static void process_event(struct perf_script *script,
 	if (output[type].fields == 0)
 		return;
 
-	print_sample_start(sample, thread, evsel);
+	fprint_sample_start(sample, thread, evsel, fp);
 
 	if (PRINT_FIELD(PERIOD))
 		printf("%10" PRIu64 " ", sample->period);
@@ -1399,25 +1408,25 @@ static void process_event(struct perf_script *script,
 	}
 
 	if (print_flags)
-		print_sample_flags(sample->flags);
+		fprint_sample_flags(sample->flags, fp);
 
 	if (is_bts_event(attr)) {
-		print_sample_bts(sample, evsel, thread, al, machine);
+		fprint_sample_bts(sample, evsel, thread, al, machine, fp);
 		return;
 	}
 
 	if (PRINT_FIELD(TRACE))
-		event_format__print(evsel->tp_format, sample->cpu,
-				    sample->raw_data, sample->raw_size);
+		event_format__fprintf(evsel->tp_format, sample->cpu,
+				    sample->raw_data, sample->raw_size, fp);
 
 	if (attr->type == PERF_TYPE_SYNTH && PRINT_FIELD(SYNTH))
-		print_sample_synth(sample, evsel);
+		fprint_sample_synth(sample, evsel, fp);
 
 	if (PRINT_FIELD(ADDR))
-		print_sample_addr(sample, thread, attr);
+		fprint_sample_addr(sample, thread, attr, fp);
 
 	if (PRINT_FIELD(DATA_SRC))
-		data_src__printf(sample->data_src);
+		data_src__fprintf(sample->data_src, fp);
 
 	if (PRINT_FIELD(WEIGHT))
 		printf("%16" PRIu64, sample->weight);
@@ -1431,22 +1440,22 @@ static void process_event(struct perf_script *script,
 			cursor = &callchain_cursor;
 
 		putchar(cursor ? '\n' : ' ');
-		sample__fprintf_sym(sample, al, 0, output[type].print_ip_opts, cursor, stdout);
+		sample__fprintf_sym(sample, al, 0, output[type].print_ip_opts, cursor, fp);
 	}
 
 	if (PRINT_FIELD(IREGS))
-		print_sample_iregs(sample, attr);
+		fprint_sample_iregs(sample, attr, fp);
 
 	if (PRINT_FIELD(BRSTACK))
-		print_sample_brstack(sample, thread, attr);
+		fprint_sample_brstack(sample, thread, attr, fp);
 	else if (PRINT_FIELD(BRSTACKSYM))
-		print_sample_brstacksym(sample, thread, attr);
+		fprint_sample_brstacksym(sample, thread, attr, fp);
 	else if (PRINT_FIELD(BRSTACKOFF))
-		print_sample_brstackoff(sample, thread, attr);
+		fprint_sample_brstackoff(sample, thread, attr, fp);
 
 	if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
-		print_sample_bpf_output(sample);
-	print_insn(sample, attr, thread, machine);
+		fprint_sample_bpf_output(sample, fp);
+	fprint_insn(sample, attr, thread, machine, fp);
 	printf("\n");
 }
 
@@ -1526,6 +1535,7 @@ static int process_sample_event(struct perf_tool *tool,
 {
 	struct perf_script *scr = container_of(tool, struct perf_script, tool);
 	struct addr_location al;
+	FILE *fp;
 
 	if (perf_time__skip_sample(&scr->ptime, sample->time))
 		return 0;
@@ -1555,8 +1565,10 @@ static int process_sample_event(struct perf_tool *tool,
 
 	if (scripting_ops)
 		scripting_ops->process_event(event, sample, evsel, &al);
-	else
-		process_event(scr, sample, evsel, &al, machine);
+	else {
+		fp = stdout;
+		process_event(scr, sample, evsel, &al, machine, fp);
+	}
 
 out_put:
 	addr_location__put(&al);
@@ -1605,6 +1617,7 @@ static int process_comm_event(struct perf_tool *tool,
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
 	int ret = -1;
+	FILE *fp;
 
 	thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
 	if (thread == NULL) {
@@ -1621,8 +1634,9 @@ static int process_comm_event(struct perf_tool *tool,
 		sample->tid = event->comm.tid;
 		sample->pid = event->comm.pid;
 	}
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 	ret = 0;
 out:
 	thread__put(thread);
@@ -1639,6 +1653,7 @@ static int process_namespaces_event(struct perf_tool *tool,
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
 	int ret = -1;
+	FILE *fp;
 
 	thread = machine__findnew_thread(machine, event->namespaces.pid,
 					 event->namespaces.tid);
@@ -1656,8 +1671,9 @@ static int process_namespaces_event(struct perf_tool *tool,
 		sample->tid = event->namespaces.tid;
 		sample->pid = event->namespaces.pid;
 	}
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 	ret = 0;
 out:
 	thread__put(thread);
@@ -1673,6 +1689,7 @@ static int process_fork_event(struct perf_tool *tool,
 	struct perf_script *script = container_of(tool, struct perf_script, tool);
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+	FILE *fp;
 
 	if (perf_event__process_fork(tool, event, sample, machine) < 0)
 		return -1;
@@ -1689,8 +1706,9 @@ static int process_fork_event(struct perf_tool *tool,
 		sample->tid = event->fork.tid;
 		sample->pid = event->fork.pid;
 	}
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 	thread__put(thread);
 
 	return 0;
@@ -1705,6 +1723,7 @@ static int process_exit_event(struct perf_tool *tool,
 	struct perf_script *script = container_of(tool, struct perf_script, tool);
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+	FILE *fp;
 
 	thread = machine__findnew_thread(machine, event->fork.pid, event->fork.tid);
 	if (thread == NULL) {
@@ -1718,8 +1737,9 @@ static int process_exit_event(struct perf_tool *tool,
 		sample->tid = event->fork.tid;
 		sample->pid = event->fork.pid;
 	}
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 
 	if (perf_event__process_exit(tool, event, sample, machine) < 0)
 		err = -1;
@@ -1737,6 +1757,7 @@ static int process_mmap_event(struct perf_tool *tool,
 	struct perf_script *script = container_of(tool, struct perf_script, tool);
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+	FILE *fp;
 
 	if (perf_event__process_mmap(tool, event, sample, machine) < 0)
 		return -1;
@@ -1753,8 +1774,9 @@ static int process_mmap_event(struct perf_tool *tool,
 		sample->tid = event->mmap.tid;
 		sample->pid = event->mmap.pid;
 	}
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 	thread__put(thread);
 	return 0;
 }
@@ -1768,6 +1790,7 @@ static int process_mmap2_event(struct perf_tool *tool,
 	struct perf_script *script = container_of(tool, struct perf_script, tool);
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
+	FILE *fp;
 
 	if (perf_event__process_mmap2(tool, event, sample, machine) < 0)
 		return -1;
@@ -1784,8 +1807,9 @@ static int process_mmap2_event(struct perf_tool *tool,
 		sample->tid = event->mmap2.tid;
 		sample->pid = event->mmap2.pid;
 	}
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 	thread__put(thread);
 	return 0;
 }
@@ -1799,7 +1823,7 @@ static int process_switch_event(struct perf_tool *tool,
 	struct perf_script *script = container_of(tool, struct perf_script, tool);
 	struct perf_session *session = script->session;
 	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
-
+	FILE *fp;
 	if (perf_event__process_switch(tool, event, sample, machine) < 0)
 		return -1;
 
@@ -1810,8 +1834,9 @@ static int process_switch_event(struct perf_tool *tool,
 		return -1;
 	}
 
-	print_sample_start(sample, thread, evsel);
-	perf_event__fprintf(event, stdout);
+	fp = stdout;
+	fprint_sample_start(sample, thread, evsel, fp);
+	perf_event__fprintf(event, fp);
 	thread__put(thread);
 	return 0;
 }
-- 
1.8.3.1

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#1737299 — Re: [PATCH 2/4] Makes all those related functions receive the FILE pointer

On Mon, Sep 18, 2017 at 01:55:20PM +0800, yuzhoujian wrote:
> Signed-off-by: yuzhoujian <yuzhoujian@didichuxing.com>
> ---
>  tools/perf/builtin-script.c | 247 ++++++++++++++++++++++++--------------------
>  1 file changed, 136 insertions(+), 111 deletions(-)
> 
> diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
> index 91b5225..f709f6f 100644
> --- a/tools/perf/builtin-script.c
> +++ b/tools/perf/builtin-script.c
> @@ -486,8 +486,8 @@ static int perf_session__check_output_opt(struct perf_session *session)
>  	return 0;
>  }
>  
> -static void print_sample_iregs(struct perf_sample *sample,
> -			  struct perf_event_attr *attr)
> +static void fprint_sample_iregs(struct perf_sample *sample,
> +			  struct perf_event_attr *attr, FILE *fp)

please make sure the perf gets compiled after every change,
I think this will break compile because of unused *fp,
use the __maybe_unused attribute

jirka

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#1737525 — Re: [PATCH 2/4] Makes all those related functions receive the FILE pointer

Em Fri, Sep 22, 2017 at 11:03:19AM +0200, Jiri Olsa escreveu:
> On Mon, Sep 18, 2017 at 01:55:20PM +0800, yuzhoujian wrote:
> > Signed-off-by: yuzhoujian <yuzhoujian@didichuxing.com>
> > +++ b/tools/perf/builtin-script.c
> > @@ -486,8 +486,8 @@ static int perf_session__check_output_opt(struct perf_session *session)
> >  	return 0;
> >  }
> >  
> > -static void print_sample_iregs(struct perf_sample *sample,
> > -			  struct perf_event_attr *attr)
> > +static void fprint_sample_iregs(struct perf_sample *sample,
> > +			  struct perf_event_attr *attr, FILE *fp)
> 
> please make sure the perf gets compiled after every change,
> I think this will break compile because of unused *fp,
> use the __maybe_unused attribute

Yes, that will save me some time, as I _will_ do this. Doing it
judiciously will make me want to review and process your patches faster
in the future, BTW.

To know why this is important, please read about 'git bisect'.

- Arnaldo

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#1737300 — Re: [PATCH 2/4] Makes all those related functions receive the FILE pointer

On Mon, Sep 18, 2017 at 01:55:20PM +0800, yuzhoujian wrote:

SNIP

>  out_put:
>  	addr_location__put(&al);
> @@ -1605,6 +1617,7 @@ static int process_comm_event(struct perf_tool *tool,
>  	struct perf_session *session = script->session;
>  	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
>  	int ret = -1;
> +	FILE *fp;
>  
>  	thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
>  	if (thread == NULL) {
> @@ -1621,8 +1634,9 @@ static int process_comm_event(struct perf_tool *tool,
>  		sample->tid = event->comm.tid;
>  		sample->pid = event->comm.pid;
>  	}
> -	print_sample_start(sample, thread, evsel);
> -	perf_event__fprintf(event, stdout);
> +	fp = stdout;
> +	fprint_sample_start(sample, thread, evsel, fp);
> +	perf_event__fprintf(event, fp);

please make this simple 'adding fp argument to print functions'
change and just pass stdout in here ... and do the rest of changes
later on

thanks,
jirka

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#1737526 — Re: [PATCH 2/4] Makes all those related functions receive the FILE pointer

Em Fri, Sep 22, 2017 at 11:03:12AM +0200, Jiri Olsa escreveu:
> On Mon, Sep 18, 2017 at 01:55:20PM +0800, yuzhoujian wrote:
> 
> SNIP
> 
> >  out_put:
> >  	addr_location__put(&al);
> > @@ -1605,6 +1617,7 @@ static int process_comm_event(struct perf_tool *tool,
> >  	struct perf_session *session = script->session;
> >  	struct perf_evsel *evsel = perf_evlist__id2evsel(session->evlist, sample->id);
> >  	int ret = -1;
> > +	FILE *fp;
> >  
> >  	thread = machine__findnew_thread(machine, event->comm.pid, event->comm.tid);
> >  	if (thread == NULL) {
> > @@ -1621,8 +1634,9 @@ static int process_comm_event(struct perf_tool *tool,
> >  		sample->tid = event->comm.tid;
> >  		sample->pid = event->comm.pid;
> >  	}
> > -	print_sample_start(sample, thread, evsel);
> > -	perf_event__fprintf(event, stdout);
> > +	fp = stdout;
> > +	fprint_sample_start(sample, thread, evsel, fp);
> > +	perf_event__fprintf(event, fp);
> 
> please make this simple 'adding fp argument to print functions'
> change and just pass stdout in here ... and do the rest of changes
> later on

That was what I asked him when I first reviewied this patchset.

- Arnaldo

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