Merge branch 'perf/annotate' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

Perf annotate browser improvements:

 - Get back the line separating the overheads from the disassembly, requested by
   Peter Zijlstra, Linus agreed now that it is a solid line and more column real
   state was harvested. Also it has the jump->arrow lines separated from it by
   the address/jump target column.

 - Don't change asm line color when toggling source code view. Requested by
   Peter Zijlstra.

Current snapshot:

 avtab_search_node
        │      push   %rbp
        │      mov    %rsp,%rbp
        │    → callq  mcount
        │      movzwl 0x6(%rsi),%edx
        │      and    $0x7fff,%dx
        │      test   %rdi,%rdi
        │    ↓ jne    20
   0.42 │17:┌─→xor    %eax,%eax
        │19:│  leaveq
   0.42 │   │← retq
        │   │  nopl   0x0(%rax,%rax,1)
        │20:│  mov    (%rdi),%rax
   0.08 │   │  test   %rax,%rax
        │   └──je     17
        │      movzwl (%rsi),%ecx
        │      movzwl 0x2(%rsi),%r9d
        │      movzwl 0x4(%rsi),%r8d
        │      movzwl %cx,%esi
        │      movzwl %r9w,%r10d
        │      shl    $0x9,%esi
        │      lea    (%rsi,%r10,4),%esi
        │      lea    (%r8,%rsi,1),%esi
        │      and    0x10(%rdi),%si
        │      movzwl %si,%esi
        │      mov    (%rax,%rsi,8),%rax
   1.01 │      test   %rax,%rax
        │    ↑ je     19
        │      nopw   0x0(%rax,%rax,1)
   3.19 │60:   cmp    %cx,(%rax)
        │    ↓ jne    7e
   0.08 │      cmp    %r9w,0x2(%rax)
        │    ↓ jne    7e
        │      cmp    %r8w,0x4(%rax)
        │    ↓ jne    79
        │      test   %dx,0x6(%rax)
        │    ↑ jne    19
        │79:   cmp    %r8w,0x4(%rax)
  83.45 │7e: ↑ ja     17
   3.36 │      mov    0x10(%rax),%rax
   7.98 │      test   %rax,%rax
        │    ↑ jne    60
        │      leaveq
        │    ← retq

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

2 files changed, 41 insertions, 9 deletions

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 5eb3412..6b4146b 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -18,6 +18,21 @@
 
 const char 	*disassembler_style;
 
+static int ins__raw_scnprintf(struct ins *ins, char *bf, size_t size,
+			      struct ins_operands *ops)
+{
+	return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
+}
+
+int ins__scnprintf(struct ins *ins, char *bf, size_t size,
+		  struct ins_operands *ops)
+{
+	if (ins->ops->scnprintf)
+		return ins->ops->scnprintf(ins, bf, size, ops);
+
+	return ins__raw_scnprintf(ins, bf, size, ops);
+}
+
 static int call__parse(struct ins_operands *ops)
 {
 	char *endptr, *tok, *name;
@@ -50,11 +65,8 @@ indirect_call:
 }
 
 static int call__scnprintf(struct ins *ins, char *bf, size_t size,
-			   struct ins_operands *ops, bool addrs)
+			   struct ins_operands *ops)
 {
-	if (addrs)
-		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
-
 	if (ops->target.name)
 		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->target.name);
 
@@ -86,11 +98,8 @@ static int jump__parse(struct ins_operands *ops)
 }
 
 static int jump__scnprintf(struct ins *ins, char *bf, size_t size,
-			   struct ins_operands *ops, bool addrs)
+			   struct ins_operands *ops)
 {
-	if (addrs)
-		return scnprintf(bf, size, "%-6.6s %s", ins->name, ops->raw);
-
 	return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, ops->target.offset);
 }
 
@@ -104,6 +113,16 @@ bool ins__is_jump(const struct ins *ins)
 	return ins->ops == &jump_ops;
 }
 
+static int nop__scnprintf(struct ins *ins __used, char *bf, size_t size,
+			  struct ins_operands *ops __used)
+{
+	return scnprintf(bf, size, "%-6.6s", "nop");
+}
+
+static struct ins_ops nop_ops = {
+	.scnprintf = nop__scnprintf,
+};
+
 /*
  * Must be sorted by name!
  */
@@ -145,6 +164,9 @@ static struct ins instructions[] = {
 	{ .name = "jrcxz", .ops  = &jump_ops, },
 	{ .name = "js",	   .ops  = &jump_ops, },
 	{ .name = "jz",	   .ops  = &jump_ops, },
+	{ .name = "nop",   .ops  = &nop_ops, },
+	{ .name = "nopl",  .ops  = &nop_ops, },
+	{ .name = "nopw",  .ops  = &nop_ops, },
 };
 
 static int ins__cmp(const void *name, const void *insp)
@@ -296,6 +318,14 @@ void disasm_line__free(struct disasm_line *dl)
 	free(dl);
 }
 
+int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw)
+{
+	if (raw || !dl->ins)
+		return scnprintf(bf, size, "%-6.6s %s", dl->name, dl->ops.raw);
+
+	return ins__scnprintf(dl->ins, bf, size, &dl->ops);
+}
+
 static void disasm__add(struct list_head *head, struct disasm_line *line)
 {
 	list_add_tail(&line->node, head);
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 13a21f1..bb0a9f2 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -22,7 +22,7 @@ struct ins_operands {
 struct ins_ops {
 	int (*parse)(struct ins_operands *ops);
 	int (*scnprintf)(struct ins *ins, char *bf, size_t size,
-			 struct ins_operands *ops, bool addrs);
+			 struct ins_operands *ops);
 };
 
 struct ins {
@@ -32,6 +32,7 @@ struct ins {
 
 bool ins__is_jump(const struct ins *ins);
 bool ins__is_call(const struct ins *ins);
+int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops);
 
 struct disasm_line {
 	struct list_head    node;
@@ -49,6 +50,7 @@ static inline bool disasm_line__has_offset(const struct disasm_line *dl)
 
 void disasm_line__free(struct disasm_line *dl);
 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos);
+int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
 size_t disasm__fprintf(struct list_head *head, FILE *fp);
 
 struct sym_hist {