linux-kernel - [PATCH v4 6/8] recordmcount: Kernel style formatting

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: <647f21f43723d3e831cedd3238c893db03eea6f0.1564596289.git.mhelsley@vmware.com>
Date:   Wed, 31 Jul 2019 11:24:14 -0700
From:   Matt Helsley <mhelsley@...are.com>
To:     LKML <linux-kernel@...r.kernel.org>
CC:     Ingo Molnar <mingo@...nel.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Matt Helsley <mhelsley@...are.com>
Subject: [PATCH v4 6/8] recordmcount: Kernel style formatting

Fix up the whitespace irregularity in the ELF switch
blocks.

Swapping the initial value of gpfx allows us to
simplify all but one of the one-line switch cases even
further.

Signed-off-by: Matt Helsley <mhelsley@...are.com>
---
 scripts/recordmcount.c | 47 ++++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 22 deletions(-)

diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index 67f9c45b824f..273ca8b42b20 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -489,15 +489,15 @@ static int do_file(char const *const fname)
 		push_bl_mcount_thumb = push_bl_mcount_thumb_be;
 		break;
 	}  /* end switch */
-	if (memcmp(ELFMAG, ehdr->e_ident, SELFMAG) != 0
-	||  w2(ehdr->e_type) != ET_REL
-	||  ehdr->e_ident[EI_VERSION] != EV_CURRENT) {
+	if (memcmp(ELFMAG, ehdr->e_ident, SELFMAG) != 0 ||
+	    w2(ehdr->e_type) != ET_REL ||
+	    ehdr->e_ident[EI_VERSION] != EV_CURRENT) {
 		fprintf(stderr, "unrecognized ET_REL file %s\n", fname);
 		cleanup();
 		goto out;
 	}
 
-	gpfx = 0;
+	gpfx = '_';
 	switch (w2(ehdr->e_machine)) {
 	default:
 		fprintf(stderr, "unrecognized e_machine %u %s\n",
@@ -510,32 +510,35 @@ static int do_file(char const *const fname)
 		make_nop = make_nop_x86;
 		ideal_nop = ideal_nop5_x86_32;
 		mcount_adjust_32 = -1;
+		gpfx = 0;
+		break;
+	case EM_ARM:
+		reltype = R_ARM_ABS32;
+		altmcount = "__gnu_mcount_nc";
+		make_nop = make_nop_arm;
+		rel_type_nop = R_ARM_NONE;
+		gpfx = 0;
 		break;
-	case EM_ARM:	 reltype = R_ARM_ABS32;
-			 altmcount = "__gnu_mcount_nc";
-			 make_nop = make_nop_arm;
-			 rel_type_nop = R_ARM_NONE;
-			 break;
 	case EM_AARCH64:
-			reltype = R_AARCH64_ABS64;
-			make_nop = make_nop_arm64;
-			rel_type_nop = R_AARCH64_NONE;
-			ideal_nop = ideal_nop4_arm64;
-			gpfx = '_';
-			break;
-	case EM_IA_64:	 reltype = R_IA64_IMM64;   gpfx = '_'; break;
-	case EM_MIPS:	 /* reltype: e_class    */ gpfx = '_'; break;
-	case EM_PPC:	 reltype = R_PPC_ADDR32;   gpfx = '_'; break;
-	case EM_PPC64:	 reltype = R_PPC64_ADDR64; gpfx = '_'; break;
-	case EM_S390:    /* reltype: e_class    */ gpfx = '_'; break;
-	case EM_SH:	 reltype = R_SH_DIR32;                 break;
-	case EM_SPARCV9: reltype = R_SPARC_64;     gpfx = '_'; break;
+		reltype = R_AARCH64_ABS64;
+		make_nop = make_nop_arm64;
+		rel_type_nop = R_AARCH64_NONE;
+		ideal_nop = ideal_nop4_arm64;
+		break;
+	case EM_IA_64:	reltype = R_IA64_IMM64; break;
+	case EM_MIPS:	/* reltype: e_class    */ break;
+	case EM_PPC:	reltype = R_PPC_ADDR32; break;
+	case EM_PPC64:	reltype = R_PPC64_ADDR64; break;
+	case EM_S390:	/* reltype: e_class    */ break;
+	case EM_SH:	reltype = R_SH_DIR32; gpfx = 0; break;
+	case EM_SPARCV9: reltype = R_SPARC_64; break;
 	case EM_X86_64:
 		make_nop = make_nop_x86;
 		ideal_nop = ideal_nop5_x86_64;
 		reltype = R_X86_64_64;
 		rel_type_nop = R_X86_64_NONE;
 		mcount_adjust_64 = -1;
+		gpfx = 0;
 		break;
 	}  /* end switch */
 
-- 
2.20.1