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From: Samuel Zeter <samuelzeter@gmail.com>
Cc: samuelzeter@gmail.com, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	linux-kernel@vger.kernel.org, llvm@lists.linux.dev
Subject: [PATCH 0/2] *** Fix reformat_objdump.awk ***
Date: Thu,  6 Jan 2022 13:36:03 +1100	[thread overview]
Message-ID: <20220106023606.283953-1-samuelzeter@gmail.com> (raw)

These are two small patches which originally dealt with
the problem found at:

https://github.com/ClangBuiltLinux/linux/issues/1364

The original steps to reproduce were:
$ make -skj"$(nproc)" LLVM=1 LLVM_IAS=1 defconfig
$ scripts/config -e X86_DECODER_SELFTEST
$ make -skj"$(nproc)" LLVM=1 LLVM_IAS=1 olddefconfig bzImage

Which resulted in the error:
arch/x86/tools/insn_decoder_test: warning: objdump says 0 bytes, but
insn_get_length() says 2

Upon inspection it turned out llvm-objdump was formatting its
output differently, which caused objdump_reformat.awk to incorrectly
output its values.

After fixing that bug, a second one was seen where the instruction
"wait" was incorrectly matched with "fwait", which again caused
insn_decoder_test to fail.

Samuel Zeter (2):
  arch/x86/tools/objdump_reformat.awk: Ensure regex matches fwait
  arch/x86/tools/objdump_reformat.awk: Allow for spaces

 arch/x86/tools/objdump_reformat.awk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.32.0


WARNING: multiple messages have this Message-ID (diff)
From: Samuel Zeter <samuelzeter@gmail.com>
To: unlisted-recipients:; (no To-header on input)
Cc: samuelzeter@gmail.com, Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	linux-kernel@vger.kernel.org, llvm@lists.linux.dev
Subject: [PATCH 0/2] *** Fix reformat_objdump.awk ***
Date: Thu,  6 Jan 2022 13:36:03 +1100	[thread overview]
Message-ID: <20220106023606.283953-1-samuelzeter@gmail.com> (raw)

These are two small patches which originally dealt with
the problem found at:

https://github.com/ClangBuiltLinux/linux/issues/1364

The original steps to reproduce were:
$ make -skj"$(nproc)" LLVM=1 LLVM_IAS=1 defconfig
$ scripts/config -e X86_DECODER_SELFTEST
$ make -skj"$(nproc)" LLVM=1 LLVM_IAS=1 olddefconfig bzImage

Which resulted in the error:
arch/x86/tools/insn_decoder_test: warning: objdump says 0 bytes, but
insn_get_length() says 2

Upon inspection it turned out llvm-objdump was formatting its
output differently, which caused objdump_reformat.awk to incorrectly
output its values.

After fixing that bug, a second one was seen where the instruction
"wait" was incorrectly matched with "fwait", which again caused
insn_decoder_test to fail.

Samuel Zeter (2):
  arch/x86/tools/objdump_reformat.awk: Ensure regex matches fwait
  arch/x86/tools/objdump_reformat.awk: Allow for spaces

 arch/x86/tools/objdump_reformat.awk | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

-- 
2.32.0


             reply	other threads:[~2022-01-06  2:37 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-06  2:36 Samuel Zeter [this message]
2022-01-06  2:36 ` [PATCH 0/2] *** Fix reformat_objdump.awk *** Samuel Zeter
2022-01-06  2:36 ` [PATCH 1/2] arch/x86/tools/objdump_reformat.awk: Ensure regex matches fwait Samuel Zeter
2022-01-06  2:36   ` Samuel Zeter
2022-01-06  2:36 ` [PATCH 2/2] arch/x86/tools/objdump_reformat.awk: Allow for spaces Samuel Zeter
2022-01-06  2:36   ` Samuel Zeter
2022-01-06 19:02 ` [PATCH 0/2] *** Fix reformat_objdump.awk *** Nathan Chancellor
2022-01-06 23:23   ` Samuel Zeter
2022-01-07  0:16     ` Nathan Chancellor
2022-03-04  3:16       ` [PATCH v2 " Sam Zeter
2022-03-04  3:16         ` [PATCH v2 1/2] arch/x86/tools/objdump_reformat.awk: Ensure regex matches fwait Sam Zeter
2022-03-04  3:16         ` [PATCH v2 2/2] arch/x86/tools/objdump_reformat.awk: Allow for spaces Sam Zeter
2022-03-04 17:20         ` [PATCH v2 0/2] *** Fix reformat_objdump.awk *** Nathan Chancellor
2022-01-07 11:52   ` [PATCH " Masami Hiramatsu

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