From: Artem Savkov <asavkov@redhat.com>
Date: Wed, 13 Jun 2018 08:18:50 +0000 (+0200)
Subject: create-diff-object: add .text.hot to the list of bundleable functions
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=acd4e478bd8a8ea1f2ec41e26f02e6b74ad43cd3;p=livepatch-build-tools.git

create-diff-object: add .text.hot to the list of bundleable functions

According to gcc8's man pages gcc can put functions into .text.unlikely
or .text.hot subfunctions during optimization. Add ".text.hot" to the
list of bundleable functions in is_bundleable().

Signed-off-by: Artem Savkov <asavkov@redhat.com>
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Ross Lagerwall <ross.lagerwall@citrix.com>
---

diff --git a/common.c b/common.c
index 84ca14d..b46fcf5 100644
--- a/common.c
+++ b/common.c
@@ -131,6 +131,11 @@ static int is_bundleable(struct symbol *sym)
 			  !strncmp(sym->sec->name + 15, sym->name, strlen(sym->sec->name) - 15))))
 		return 1;
 
+	if (sym->type == STT_FUNC &&
+	    !strncmp(sym->sec->name, ".text.hot.",10) &&
+	    !strcmp(sym->sec->name + 10, sym->name))
+		return 1;
+
 	if (sym->type == STT_OBJECT &&
 	   !strncmp(sym->sec->name, ".data.",6) &&
 	   !strcmp(sym->sec->name + 6, sym->name))