From: Cherry Mui <cherryyz@google.com>
Date: Fri, 25 Feb 2022 04:44:05 +0000 (-0500)
Subject: cmd/asm: support -d=pctab flag
X-Git-Tag: go1.19beta1~1061
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=db3045b4be5b91cd42c3387dc550c89bbc2f7fb4;p=gostls13.git

cmd/asm: support -d=pctab flag

To debug PC data generation.

Change-Id: Id7ac8d607cc27ad52db490bd758c3a768c3e1df2
Reviewed-on: https://go-review.googlesource.com/c/go/+/388015
Trust: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Reviewed-by: Than McIntosh <thanm@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
---

diff --git a/src/cmd/asm/internal/flags/flags.go b/src/cmd/asm/internal/flags/flags.go
index 607166e664..273d422370 100644
--- a/src/cmd/asm/internal/flags/flags.go
+++ b/src/cmd/asm/internal/flags/flags.go
@@ -30,6 +30,7 @@ var (
 
 var DebugFlags struct {
 	MayMoreStack string `help:"call named function before all stack growth checks"`
+	PCTab        string `help:"print named pc-value table\nOne of: pctospadj, pctofile, pctoline, pctoinline, pctopcdata"`
 }
 
 var (
diff --git a/src/cmd/asm/main.go b/src/cmd/asm/main.go
index 3683527f5b..6a25fd426b 100644
--- a/src/cmd/asm/main.go
+++ b/src/cmd/asm/main.go
@@ -43,6 +43,7 @@ func main() {
 	ctxt.Flag_linkshared = *flags.Linkshared
 	ctxt.Flag_shared = *flags.Shared || *flags.Dynlink
 	ctxt.Flag_maymorestack = flags.DebugFlags.MayMoreStack
+	ctxt.Debugpcln = flags.DebugFlags.PCTab
 	ctxt.IsAsm = true
 	ctxt.Pkgpath = *flags.Importpath
 	switch *flags.Spectre {