From: Masahiro Yamada <masahiroy@kernel.org>
To: linux-kbuild@vger.kernel.org
Cc: linux-kernel@vger.kernel.org,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
Nicolas Pitre <npitre@baylibre.com>,
Nicolas Schier <nicolas@fjasle.eu>,
Masahiro Yamada <masahiroy@kernel.org>
Subject: [PATCH v4 05/21] modpost: squash report_sec_mismatch() into default_mismatch_handler()
Date: Sun, 14 May 2023 05:44:46 +0900 [thread overview]
Message-ID: <20230513204502.1593923-6-masahiroy@kernel.org> (raw)
In-Reply-To: <20230513204502.1593923-1-masahiroy@kernel.org>
report_sec_mismatch() and default_mismatch_handler() are small enough
to be merged together.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---
scripts/mod/modpost.c | 55 ++++++++++++++++---------------------------
1 file changed, 20 insertions(+), 35 deletions(-)
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 7a9a3ef8ca0d..bb7d1d87bae7 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1207,17 +1207,27 @@ static Elf_Sym *find_elf_symbol2(struct elf_info *elf, Elf_Addr addr,
return near;
}
-/*
- * Print a warning about a section mismatch.
- * Try to find symbols near it so user can find it.
- * Check whitelist before warning - it may be a false positive.
- */
-static void report_sec_mismatch(const char *modname,
- const struct sectioncheck *mismatch,
- const char *fromsec,
- const char *fromsym,
- const char *tosec, const char *tosym)
+static void default_mismatch_handler(const char *modname, struct elf_info *elf,
+ const struct sectioncheck* const mismatch,
+ Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
{
+ const char *tosec;
+ Elf_Sym *to;
+ Elf_Sym *from;
+ const char *tosym;
+ const char *fromsym;
+
+ from = find_elf_symbol2(elf, r->r_offset, fromsec);
+ fromsym = sym_name(elf, from);
+
+ tosec = sec_name(elf, get_secindex(elf, sym));
+ to = find_elf_symbol(elf, r->r_addend, sym);
+ tosym = sym_name(elf, to);
+
+ /* check whitelist - we may ignore it */
+ if (!secref_whitelist(mismatch, fromsec, fromsym, tosec, tosym))
+ return;
+
sec_mismatch_count++;
switch (mismatch->mismatch) {
@@ -1242,31 +1252,6 @@ static void report_sec_mismatch(const char *modname,
}
}
-static void default_mismatch_handler(const char *modname, struct elf_info *elf,
- const struct sectioncheck* const mismatch,
- Elf_Rela *r, Elf_Sym *sym, const char *fromsec)
-{
- const char *tosec;
- Elf_Sym *to;
- Elf_Sym *from;
- const char *tosym;
- const char *fromsym;
-
- from = find_elf_symbol2(elf, r->r_offset, fromsec);
- fromsym = sym_name(elf, from);
-
- tosec = sec_name(elf, get_secindex(elf, sym));
- to = find_elf_symbol(elf, r->r_addend, sym);
- tosym = sym_name(elf, to);
-
- /* check whitelist - we may ignore it */
- if (secref_whitelist(mismatch,
- fromsec, fromsym, tosec, tosym)) {
- report_sec_mismatch(modname, mismatch,
- fromsec, fromsym, tosec, tosym);
- }
-}
-
static int is_executable_section(struct elf_info* elf, unsigned int section_index)
{
if (section_index > elf->num_sections)
--
2.39.2
next prev parent reply other threads:[~2023-05-13 20:45 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-13 20:44 [PATCH v4 00/21] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TRIM_UNUSED_KSYMS Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 01/21] modpost: remove broken calculation of exception_table_entry size Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 02/21] modpost: remove fromsym info in __ex_table section mismatch warning Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 03/21] modpost: remove get_prettyname() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 04/21] modpost: squash report_extable_warnings() into extable_mismatch_handler() Masahiro Yamada
2023-05-13 20:44 ` Masahiro Yamada [this message]
2023-05-13 20:44 ` [PATCH v4 06/21] modpost: clean up is_executable_section() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 07/21] modpost: squash extable_mismatch_handler() into default_mismatch_handler() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 08/21] modpost: pass 'tosec' down to default_mismatch_handler() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 09/21] modpost: pass section index to find_elf_symbol2() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 10/21] modpost: simplify find_elf_symbol() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 11/21] modpost: rename find_elf_symbol() and find_elf_symbol2() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 12/21] modpost: unify 'sym' and 'to' in default_mismatch_handler() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 13/21] modpost: replace r->r_offset, r->r_addend with faddr, taddr Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 14/21] modpost: remove is_shndx_special() check from section_rel(a) Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 15/21] modpost: pass struct module pointer to check_section_mismatch() Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 16/21] kbuild: generate KSYMTAB entries by modpost Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 17/21] ia64,export.h: replace EXPORT_DATA_SYMBOL* with EXPORT_SYMBOL* Masahiro Yamada
2023-05-13 20:44 ` [PATCH v4 18/21] modpost: check static EXPORT_SYMBOL* by modpost again Masahiro Yamada
2023-05-13 20:45 ` [PATCH v4 19/21] modpost: squash sym_update_namespace() into sym_add_exported() Masahiro Yamada
2023-05-13 20:45 ` [PATCH v4 20/21] modpost: use null string instead of NULL pointer for default namespace Masahiro Yamada
2023-05-13 20:45 ` [PATCH v4 21/21] kbuild: implement CONFIG_TRIM_UNUSED_KSYMS without recursion Masahiro Yamada
2023-05-14 12:43 ` [PATCH v4 00/21] Unify <linux/export.h> and <asm/export.h>, remove EXPORT_DATA_SYMBOL(), faster TRIM_UNUSED_KSYMS Masahiro Yamada
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=20230513204502.1593923-6-masahiroy@kernel.org \
--to=masahiroy@kernel.org \
--cc=linux-kbuild@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=nathan@kernel.org \
--cc=ndesaulniers@google.com \
--cc=nicolas@fjasle.eu \
--cc=npitre@baylibre.com \
/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