| Message ID | d33db71e14b4ad672aacd39c8a5d626a2a7da5a7.1737511963.git.jpoimboe@kernel.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show
Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 16A741465AE; Wed, 22 Jan 2025 02:31:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737513116; cv=none; b=dXYYkaNfRAWCDiw9BfmAjw0owSISv5qncB3/3G26aLeFE8fbVeBxYWpYbGUoq2nT+xHjyABGcHYLueSMke3jlt+qQW4ryQDx+cVQkMXpg+qlwJn2qCEBaiqPTUd7wIxIPJc2vZmT843/CFTAWABQ2AtAOPSuJlBh4zrD4+p0Eao= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737513116; c=relaxed/simple; bh=4V7fRRbrcaQZQspNP6x9fH3uJzB9WiW6Ms6JvucjOCU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=oig99DocXZLrD6XOfrhzvP6p1k+Rx+7I2DgNZsx2FB08QaCtOO494tQYMLAe4xsbeCRnvEZOmO+oc+9w0sIlecgoON84gLEtHS07TcJlNPMNKI/PG6ulbJkljsJB1JeAhuNP5+XKWpQplG+Sdd14O3T/omsceS/o/n5HEFJiw1I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IRkjhoWv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IRkjhoWv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A6963C4CEF4; Wed, 22 Jan 2025 02:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737513115; bh=4V7fRRbrcaQZQspNP6x9fH3uJzB9WiW6Ms6JvucjOCU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IRkjhoWvqu+HlBmXeEG35Ogzy6lKWw9hXLFV/8qWYWXZ6TTxnCMqzZ9DAI8RVXrMl /nNESA4KJs6N42E3xSvt5tV1uHqeSMPYOGwO+CXXW0ZQHNlA73fA/2dfN+FmxyPGE2 3VUvUmjWHQFkndHaE/nBIkBJxtvaWpo6ITfQC7azxErrRW+TmRZQge8RFysgXfk1Pg RUTcLFcRj3w4J+mvq82BoaMHL6wyyn4hWiZC+nQ+s8oR7Zo2rKZ8KHSobFN6dv7cHK aEZX4xPL47wrO2TThop3U/rP4BxtLXLe8RvWZqfS2ifbIs0NEZrpq4gvDUQOEoSFFk W5E6A8yS3bd4A== From: Josh Poimboeuf <jpoimboe@kernel.org> To: x86@kernel.org Cc: Peter Zijlstra <peterz@infradead.org>, Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@kernel.org>, Arnaldo Carvalho de Melo <acme@kernel.org>, linux-kernel@vger.kernel.org, Indu Bhagat <indu.bhagat@oracle.com>, Mark Rutland <mark.rutland@arm.com>, Alexander Shishkin <alexander.shishkin@linux.intel.com>, Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>, Ian Rogers <irogers@google.com>, Adrian Hunter <adrian.hunter@intel.com>, linux-perf-users@vger.kernel.org, Mark Brown <broonie@kernel.org>, linux-toolchains@vger.kernel.org, Jordan Rome <jordalgo@meta.com>, Sam James <sam@gentoo.org>, linux-trace-kernel@vger.kernel.org, Andrii Nakryiko <andrii.nakryiko@gmail.com>, Jens Remus <jremus@linux.ibm.com>, Mathieu Desnoyers <mathieu.desnoyers@efficios.com>, Florian Weimer <fweimer@redhat.com>, Andy Lutomirski <luto@kernel.org>, Masami Hiramatsu <mhiramat@kernel.org>, Weinan Liu <wnliu@google.com> Subject: [PATCH v4 04/39] x86/vdso: Fix DWARF generation for getrandom() Date: Tue, 21 Jan 2025 18:30:56 -0800 Message-ID: <d33db71e14b4ad672aacd39c8a5d626a2a7da5a7.1737511963.git.jpoimboe@kernel.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <cover.1737511963.git.jpoimboe@kernel.org> References: <cover.1737511963.git.jpoimboe@kernel.org> Precedence: bulk X-Mailing-List: linux-trace-kernel@vger.kernel.org List-Id: <linux-trace-kernel.vger.kernel.org> List-Subscribe: <mailto:linux-trace-kernel+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-trace-kernel+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit |
| Series |
unwind, perf: sframe user space unwinding
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expand
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diff --git a/arch/x86/entry/vdso/vgetrandom-chacha.S b/arch/x86/entry/vdso/vgetrandom-chacha.S index bcba5639b8ee..cc82da9216fb 100644 --- a/arch/x86/entry/vdso/vgetrandom-chacha.S +++ b/arch/x86/entry/vdso/vgetrandom-chacha.S @@ -4,7 +4,7 @@ */ #include <linux/linkage.h> -#include <asm/frame.h> +#include <asm/dwarf2.h> .section .rodata, "a" .align 16 @@ -22,7 +22,7 @@ CONSTANTS: .octa 0x6b20657479622d323320646e61707865 * rcx: number of 64-byte blocks to write to output */ SYM_FUNC_START(__arch_chacha20_blocks_nostack) - + CFI_STARTPROC .set output, %rdi .set key, %rsi .set counter, %rdx @@ -175,4 +175,5 @@ SYM_FUNC_START(__arch_chacha20_blocks_nostack) pxor temp,temp ret + CFI_ENDPROC SYM_FUNC_END(__arch_chacha20_blocks_nostack)
Add CFI annotations to the VDSO implementation of getrandom() so it will have valid DWARF unwinding metadata. Fixes: 33385150ac45 ("x86: vdso: Wire up getrandom() vDSO implementation") Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> --- arch/x86/entry/vdso/vgetrandom-chacha.S | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)