linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Matt Helsley <mhelsley@vmware.com>
To: <linux-kernel@vger.kernel.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Julien Thierry <jthierry@redhat.com>,
	Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
	Matt Helsley <mhelsley@vmware.com>
Subject: [RFC][PATCH v5 08/51] objtool: mcount: Remove unused fname parameter
Date: Thu, 18 Jun 2020 13:37:54 -0700	[thread overview]
Message-ID: <93aeffe2e6529cf01f5238d1342af6d5206fd85d.1592510545.git.mhelsley@vmware.com> (raw)
In-Reply-To: <cover.1592510545.git.mhelsley@vmware.com>

The name of the object file being processed is unused in
the wrapper's leaf functions so we no longer need to pass
it as a parameter.

Signed-off-by: Matt Helsley <mhelsley@vmware.com>
---
 tools/objtool/recordmcount.c |  4 ++--
 tools/objtool/recordmcount.h | 19 ++++++++-----------
 2 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/tools/objtool/recordmcount.c b/tools/objtool/recordmcount.c
index f585bf7f45f5..9941683b3f60 100644
--- a/tools/objtool/recordmcount.c
+++ b/tools/objtool/recordmcount.c
@@ -586,7 +586,7 @@ static int do_file(char const *const fname)
 			reltype = R_MIPS_32;
 			is_fake_mcount32 = MIPS32_is_fake_mcount;
 		}
-		if (do32(ehdr, fname, reltype) < 0)
+		if (do32(ehdr, reltype) < 0)
 			goto out;
 		break;
 	case ELFCLASS64: {
@@ -607,7 +607,7 @@ static int do_file(char const *const fname)
 			Elf64_r_info = MIPS64_r_info;
 			is_fake_mcount64 = MIPS64_is_fake_mcount;
 		}
-		if (do64(ghdr, fname, reltype) < 0)
+		if (do64(ghdr, reltype) < 0)
 			goto out;
 		break;
 	}
diff --git a/tools/objtool/recordmcount.h b/tools/objtool/recordmcount.h
index 4bd61c9d1fd5..53abfd49a537 100644
--- a/tools/objtool/recordmcount.h
+++ b/tools/objtool/recordmcount.h
@@ -548,8 +548,7 @@ static int find_secsym_ndx(unsigned const txtndx,
 /* Evade ISO C restriction: no declaration after statement in has_rel_mcount. */
 static char const * __has_rel_mcount(GElf_Shdr const *const relhdr, /* reltype */
 				     Elf_Shdr const *const shdr0,
-				     char const *const shstrtab,
-				     char const *const fname)
+				     char const *const shstrtab)
 {
 	/* .sh_info depends on .sh_type == SHT_REL[,A] */
 	Elf_Shdr const *const txthdr = &shdr0[relhdr->sh_info];
@@ -563,25 +562,23 @@ static char const * __has_rel_mcount(GElf_Shdr const *const relhdr, /* reltype *
 
 static char const *has_rel_mcount(GElf_Shdr const *const relhdr,
 				  Elf_Shdr const *const shdr0,
-				  char const *const shstrtab,
-				  char const *const fname)
+				  char const *const shstrtab)
 {
 	if (relhdr->sh_type != SHT_REL && relhdr->sh_type != SHT_RELA)
 		return NULL;
-	return __has_rel_mcount(relhdr, shdr0, shstrtab, fname);
+	return __has_rel_mcount(relhdr, shdr0, shstrtab);
 }
 
 
 static unsigned tot_relsize(Elf_Shdr const *const shdr0,
-			    const char *const shstrtab,
-			    const char *const fname)
+			    const char *const shstrtab)
 {
 	struct section *sec;
 	unsigned totrelsz = 0;
 	char const *txtname;
 
 	list_for_each_entry(sec, &lf->sections, list) {
-		txtname = has_rel_mcount(&sec->sh, shdr0, shstrtab, fname);
+		txtname = has_rel_mcount(&sec->sh, shdr0, shstrtab);
 		if (txtname && is_mcounted_section_name(txtname))
 			totrelsz += sec->sh.sh_size;
 	}
@@ -589,7 +586,7 @@ static unsigned tot_relsize(Elf_Shdr const *const shdr0,
 }
 
 /* Overall supervision for Elf32 ET_REL file. */
-static int do_func(Elf_Ehdr *const ehdr, char const *const fname,
+static int do_func(Elf_Ehdr *const ehdr,
 		   unsigned const reltype)
 {
 	Elf_Shdr *const shdr0 = (Elf_Shdr *)(_w(ehdr->e_shoff)
@@ -622,7 +619,7 @@ static int do_func(Elf_Ehdr *const ehdr, char const *const fname,
 	if (find_section_by_name(lf, "__mcount_loc") != NULL)
 		return 0;
 
-	totrelsz = tot_relsize(shdr0, shstrtab, fname);
+	totrelsz = tot_relsize(shdr0, shstrtab);
 	if (totrelsz == 0)
 		return 0;
 	mrel0 = umalloc(totrelsz);
@@ -645,7 +642,7 @@ static int do_func(Elf_Ehdr *const ehdr, char const *const fname,
 
 		relhdr = &sec->sh;
 		txtname = has_rel_mcount(relhdr, shdr0,
-			shstrtab, fname);
+			shstrtab);
 		if (txtname && is_mcounted_section_name(txtname)) {
 			unsigned int recsym;
 			uint_t recval = 0;
-- 
2.20.1


  parent reply	other threads:[~2020-06-18 20:39 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-18 20:37 [RFC][PATCH v5 00/51] objtool: Make recordmcount a subcommand Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 01/51] objtool: Factor out reasons to build objtool Matt Helsley
2020-06-24 15:37   ` Miroslav Benes
2020-06-18 20:37 ` [RFC][PATCH v5 02/51] objtool: Prepare to merge recordmcount Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 03/51] objtool: Make recordmcount into mcount subcmd Matt Helsley
2020-06-25 10:39   ` Miroslav Benes
2020-06-18 20:37 ` [RFC][PATCH v5 04/51] objtool: recordmcount: Start using objtool's elf wrapper Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 05/51] objtool: recordmcount: Search for __mcount_loc before walking the sections Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 06/51] objtool: recordmcount: Convert do_func() relhdrs Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 07/51] objtool: mcount: Move nhdr into find_symtab() Matt Helsley
2020-06-18 20:37 ` Matt Helsley [this message]
2020-06-18 20:37 ` [RFC][PATCH v5 09/51] objtool: mcount: Use libelf for section header names Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 10/51] objtool: mcount: Walk objtool Elf structs in find_secsym_ndx Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 11/51] objtool: mcount: Use symbol structs to find mcount relocations Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 12/51] objtool: mcount: Walk relocation lists Matt Helsley
2020-06-18 20:37 ` [RFC][PATCH v5 13/51] objtool: mcount: Return symbol from mcountsym Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 14/51] objtool: mcount: Move get_mcountsym Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 15/51] objtool: mcount: Replace MIPS offset types Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 16/51] objtool: mcount: Move is_fake_mcount() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 17/51] objtool: mcount: Stop using ehdr in find_section_sym_index Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 18/51] objtool: mcount: Move find_section_sym_index() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 19/51] objtool: mcount: Restrict using ehdr in append_func() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 20/51] objtool: mcount: Use objtool ELF to write Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 21/51] objtool: mcount: Move nop_mcount() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 22/51] objtool: mcount: Move has_rel_mcount() and tot_relsize() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 23/51] objtool: mcount: Move relocation entry size detection Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 24/51] objtool: mcount: Only keep ELF file size Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 25/51] objtool: mcount: Use ELF header from objtool Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 26/51] objtool: mcount: Remove unused file mapping Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 27/51] objtool: mcount: Reduce usage of _size wrapper Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 28/51] objtool: mcount: Move mcount_adjust out of wrapper Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 29/51] objtool: mcount: Pre-allocate new ELF sections Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 30/51] objtool: mcount: Generic location and relocation table types Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 31/51] objtool: mcount: Use objtool relocation section Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 32/51] objtool: mcount: Move sift_rel_mcount out of wrapper file Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 33/51] objtool: mcount: Remove wrapper for ELF relocation type Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 34/51] objtool: mcount: Remove wrapper double-include trick Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 35/51] objtool: mcount: Remove endian wrappers Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 36/51] objtool: mcount: Rename to mcount.c Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 37/51] objtool: mcount: Simplify mcount name matching Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 38/51] objtool: mcount: mcount symbol name simplification Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 39/51] objtool: mcount: Verify x86 instruction with memcmp() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 40/51] objtool: mcount: const-ify ARM instruction patterns Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 41/51] objtool: mcount: Convert nop writes to elf_write_insn() Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 42/51] objtool: mcount: Move mcount symbol name testing Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 43/51] objtool: check: Use class to recognize kcov calls Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 44/51] objtool: mcount: Keep lists locations and relocations Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 45/51] objtool: mcount: Move mcount section test to objtool ELF Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 46/51] objtool: mcount: Flag mcount relocation sections Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 47/51] objtool: mcount: Merge section mcount flags Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 48/51] objtool: mcount: Eliminate first pass Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 49/51] objtool: mcount: Remove relocation size check Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 50/51] objtool: mcount: Remove useless lookup Matt Helsley
2020-06-18 20:38 ` [RFC][PATCH v5 51/51] objtool: mcount: Remove stale description Matt Helsley
2020-06-23 14:12 ` [RFC][PATCH v5 00/51] objtool: Make recordmcount a subcommand Matt Helsley

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=93aeffe2e6529cf01f5238d1342af6d5206fd85d.1592510545.git.mhelsley@vmware.com \
    --to=mhelsley@vmware.com \
    --cc=jpoimboe@redhat.com \
    --cc=jthierry@redhat.com \
    --cc=kamalesh@linux.vnet.ibm.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=peterz@infradead.org \
    --cc=rostedt@goodmis.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).