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Groups > linux.kernel > #1230399

[PATCH v13 14/23] x86/asm/crypto: Move .Lbswap_mask data to .rodata section

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stacktool reports the following warning:

  stacktool: arch/x86/crypto/aesni-intel_asm.o: _aesni_inc_init(): can't find starting instruction

stacktool gets confused when it tries to disassemble the following data
in the .text section:

  .Lbswap_mask:
          .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0

Move it to .rodata which is a more appropriate section for read-only
data.

Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David S. Miller <davem@davemloft.net>
---
 arch/x86/crypto/aesni-intel_asm.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index 289ef12..18f0ced 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -2553,9 +2553,11 @@ ENTRY(aesni_cbc_dec)
 ENDPROC(aesni_cbc_dec)
 
 #ifdef __x86_64__
+.pushsection .rodata
 .align 16
 .Lbswap_mask:
 	.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+.popsection
 
 /*
  * _aesni_inc_init:	internal ABI
-- 
2.4.3

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[PATCH v13 00/23] Compile-time stack metadata validation Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 17:50 +0200
  [PATCH v13 20/23] x86/asm/efi: Create a stack frame in efi_call() Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 17:50 +0200
  [PATCH v13 22/23] x86/uaccess: Add stack frame output operand in get_user inline asm Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 17:50 +0200
  [PATCH v13 21/23] x86/asm/power: Create stack frames in hibernate_asm_64.S Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 17:50 +0200
  [PATCH v13 01/23] tools: Fix formatting of the "make -C tools" help message Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 17:50 +0200
  [PATCH v13 06/23] x86/stacktool: Add ignore macros Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 18/23] x86/asm/acpi: Create a stack frame in do_suspend_lowlevel() Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 05/23] x86/stacktool: Add file and directory ignores Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 17/23] x86/asm/entry: Create stack frames in thunk functions Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 10/23] x86/amd: Set ELF function type for vide() Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 08/23] x86/paravirt: Add stack frame dependency to PVOP inline asm calls Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 16/23] x86/asm/crypto: Create stack frames in clmul_ghash_mul/update() Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 13/23] x86/asm/crypto: Create stack frames in aesni-intel_asm.S Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
    Re: [PATCH v13 13/23] x86/asm/crypto: Create stack frames in  aesni-intel_asm.S minipli@ld-linux.so - 2015-10-01 08:30 +0200
      Re: [PATCH v13 13/23] x86/asm/crypto: Create stack frames in  aesni-intel_asm.S Josh Poimboeuf <jpoimboe@redhat.com> - 2015-10-01 15:40 +0200
        Re: [PATCH v13 13/23] x86/asm/crypto: Create stack frames in  aesni-intel_asm.S Mathias Krause <minipli@ld-linux.so> - 2015-10-01 19:40 +0200
          Re: [PATCH v13 13/23] x86/asm/crypto: Create stack frames in  aesni-intel_asm.S Josh Poimboeuf <jpoimboe@redhat.com> - 2015-10-01 20:00 +0200
  [PATCH v13 09/23] x86/paravirt: Create a stack frame in PV_CALLEE_SAVE_REGS_THUNK Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 14/23] x86/asm/crypto: Move .Lbswap_mask data to .rodata section Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 15/23] x86/asm/crypto: Move jump_table to .rodata section Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:00 +0200
  [PATCH v13 12/23] x86/xen: Add xen_cpuid() and xen_setup_gdt() to stacktool whitelists Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:10 +0200
  [PATCH v13 02/23] x86/asm: Frame pointer macro cleanup Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:10 +0200
  [PATCH v13 07/23] x86/xen: Add stack frame dependency to hypercall inline asm calls Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:10 +0200
  [PATCH v13 11/23] x86/reboot: Add ljmp instructions to stacktool whitelist Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:10 +0200
  [PATCH v13 03/23] x86/asm: Add C versions of frame pointer macros Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-22 18:10 +0200
  Re: [PATCH v13 04/23] x86/stacktool: Compile-time stack metadata  validation Jiri Slaby <jslaby@suse.cz> - 2015-09-23 13:40 +0200
    Re: [PATCH v13 04/23] x86/stacktool: Compile-time stack metadata  validation Jiri Slaby <jslaby@suse.cz> - 2015-09-23 13:50 +0200
      Re: [PATCH v13.1 04/23] x86/stacktool: Compile-time stack metadata  validation Chris J Arges <chris.j.arges@canonical.com> - 2015-10-01 17:00 +0200
        Re: [PATCH v13.1 04/23] x86/stacktool: Compile-time stack metadata  validation Josh Poimboeuf <jpoimboe@redhat.com> - 2015-10-01 17:30 +0200
          Re: [PATCH v13.1 04/23] x86/stacktool: Compile-time stack metadata  validation Chris J Arges <chris.j.arges@canonical.com> - 2015-10-01 17:40 +0200
  Re: [PATCH v13 00/23] Compile-time stack metadata validation Josh Poimboeuf <jpoimboe@redhat.com> - 2015-09-28 15:50 +0200

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