linux-kernel - [RFC][PATCH 29/36] objtool: mcount: Reduce usage of

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Date:   Fri, 10 Apr 2020 12:35:52 -0700
From:   Matt Helsley <mhelsley@...are.com>
To:     <linux-kernel@...r.kernel.org>
CC:     Josh Poimboeuf <jpoimboe@...hat.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Julien Thierry <jthierry@...hat.com>,
        Ingo Molnar <mingo@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Matt Helsley <mhelsley@...are.com>
Subject: [RFC][PATCH 29/36] objtool: mcount: Reduce usage of _size wrapper

Use loc_size, which will be passed in from outside the wrapper, rather
than the _size wrapper since the location size is determined outside
the wrapper anyway.

Signed-off-by: Matt Helsley <mhelsley@...are.com>
---
 tools/objtool/recordmcount.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/tools/objtool/recordmcount.h b/tools/objtool/recordmcount.h
index 9ce2d74df89a..353c7d082631 100644
--- a/tools/objtool/recordmcount.h
+++ b/tools/objtool/recordmcount.h
@@ -72,6 +72,7 @@ static int append_func(uint_t const *const mloc0,
 			uint_t const *const mlocp,
 			Elf_Rel const *const mrel0,
 			Elf_Rel const *const mrelp,
+			unsigned int const loc_size,
 			unsigned int const rel_entsize,
 			unsigned int const symsec_sh_link)
 {
@@ -83,14 +84,14 @@ static int append_func(uint_t const *const mloc0,
 	unsigned const old_shnum = lf->ehdr.e_shnum;
 
 	/* add section: __mcount_loc */
-	sec = elf_create_section(lf, mc_name + (sizeof(Elf_Rela) == rel_entsize) + strlen(".rel"), _size, mlocp - mloc0);
+	sec = elf_create_section(lf, mc_name + (sizeof(Elf_Rela) == rel_entsize) + strlen(".rel"), loc_size, mlocp - mloc0);
 	if (!sec)
 		return -1;
 
 	// created sec->sh.sh_size = (void *)mlocp - (void *)mloc0;
 	sec->sh.sh_link = 0;/* TODO objtool uses this? */
 	sec->sh.sh_info = 0;/* TODO objtool uses this? */
-	sec->sh.sh_addralign = _size;
+	sec->sh.sh_addralign = loc_size;
 	// created sec->sh.sh_entsize = _size;
 
 	// assert sec->data->d_size == (void *)mlocp - (void *)mloc0
@@ -109,7 +110,7 @@ static int append_func(uint_t const *const mloc0,
 	sec->sh.sh_flags = 0;
 	sec->sh.sh_link = find_section_by_name(lf, ".symtab")->idx;
 	sec->sh.sh_info = old_shnum;
-	sec->sh.sh_addralign = _size;
+	sec->sh.sh_addralign = loc_size;
 
 	// assert sec->data->d_size == (void *)mrelp - (void *)mrel0
 	memcpy(sec->data->d_buf, mrel0, sec->data->d_size);
@@ -231,7 +232,7 @@ static int do_func(unsigned const reltype)
 	}
 	if (!result && mloc0 != mlocp)
 		result = append_func(mloc0, mlocp, mrel0, mrelp,
-				     rel_entsize, symsec_sh_link);
+				     _size, rel_entsize, symsec_sh_link);
 out:
 	free(mrel0);
 	free(mloc0);
-- 
2.20.1