linux-kernel - Re: [PATCH] Make modpost section warnings clearer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070510220325.GI29713@flint.arm.linux.org.uk>
Date:	Thu, 10 May 2007 23:03:25 +0100
From:	Russell King <rmk+lkml@....linux.org.uk>
To:	David Miller <davem@...emloft.net>, sam@...nborg.org, cw@...f.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Make modpost section warnings clearer

Change modpost section mismatch warnings to be less confusing;
model them on the binutils linker warnings which we all know how
to interpret.

Also, fix the wrong ordering of arguments for the final case -
fromsec and refsymname were reversed.

Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>
---
Yes, I build-tested the last patch but it didn't throw any warnings.
Here's a corrected patch.

 scripts/mod/modpost.c |   33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 113dc77..acd28ab 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -885,29 +885,28 @@ static void warn_sec_mismatch(const char *modname, const char *fromsec,
 		return;
 
 	if (before && after) {
-		warn("%s - Section mismatch: reference to %s:%s from %s "
-		     "between '%s' (at offset 0x%llx) and '%s'\n",
-		     modname, secname, refsymname, fromsec,
+		warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
+		     "(between '%s' and '%s')\n",
+		     modname, fromsec, (long long)r.r_offset,
+		     secname, refsymname,
 		     elf->strtab + before->st_name,
-		     (long long)r.r_offset,
 		     elf->strtab + after->st_name);
 	} else if (before) {
-		warn("%s - Section mismatch: reference to %s:%s from %s "
-		     "after '%s' (at offset 0x%llx)\n",
-		     modname, secname, refsymname, fromsec,
-		     elf->strtab + before->st_name,
-		     (long long)r.r_offset);
+		warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
+		     "(after '%s')\n",
+		     modname, fromsec, (long long)r.r_offset,
+		     secname, refsymname,
+		     elf->strtab + before->st_name);
 	} else if (after) {
-		warn("%s - Section mismatch: reference to %s:%s from %s "
+		warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s "
 		     "before '%s' (at offset -0x%llx)\n",
-		     modname, secname, refsymname, fromsec,
-		     elf->strtab + after->st_name,
-		     (long long)r.r_offset);
+		     modname, fromsec, (long long)r.r_offset,
+		     secname, refsymname,
+		     elf->strtab + after->st_name);
 	} else {
-		warn("%s - Section mismatch: reference to %s:%s from %s "
-		     "(offset 0x%llx)\n",
-		     modname, secname, fromsec, refsymname,
-		     (long long)r.r_offset);
+		warn("%s(%s+0x%llx): Section mismatch: reference to %s:%s\n",
+		     modname, fromsec, (long long)r.r_offset,
+		     secname, refsymname);
 	}
 }
 
-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/