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From: "Alex Bennée" <alex.bennee@linaro.org>
To: qemu-devel@nongnu.org
Cc: "David Hildenbrand" <david@redhat.com>,
	"Beraldo Leal" <bleal@redhat.com>,
	"Eduardo Habkost" <eduardo@habkost.net>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Wainer dos Santos Moschetta" <wainersm@redhat.com>,
	qemu-arm@nongnu.org, "Peter Xu" <peterx@redhat.com>,
	"Mads Ynddal" <mads@ynddal.dk>,
	"Mahmoud Mandour" <ma.mandourr@gmail.com>,
	"Pierrick Bouvier" <pierrick.bouvier@linaro.org>,
	"Laurent Vivier" <laurent@vivier.eu>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Alexandre Iooss" <erdnaxe@crans.org>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Peter Maydell" <peter.maydell@linaro.org>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	"Mark Cave-Ayland" <mark.cave-ayland@ilande.co.uk>
Subject: [PATCH 02/23] target/i386: fix gen_prepare_size_nz condition
Date: Fri, 28 Jun 2024 13:42:37 +0100	[thread overview]
Message-ID: <20240628124258.832466-3-alex.bennee@linaro.org> (raw)
In-Reply-To: <20240628124258.832466-1-alex.bennee@linaro.org>

Incorrect brace positions causes an unintended overflow on 32 bit
builds and shenanigans result.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2413
Suggested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 target/i386/tcg/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index ad1819815a..94f13541c3 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -877,7 +877,7 @@ static CCPrepare gen_prepare_sign_nz(TCGv src, MemOp size)
         return (CCPrepare) { .cond = TCG_COND_LT, .reg = src };
     } else {
         return (CCPrepare) { .cond = TCG_COND_TSTNE, .reg = src,
-                             .imm = 1ull << ((8 << size) - 1) };
+                             .imm = (1ull << (8 << size)) - 1 };
     }
 }
 
-- 
2.39.2



  parent reply	other threads:[~2024-06-28 12:45 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-28 12:42 [PATCH 00/23] July maintainer updates (32bit, testing, plugins, gdbstub) Alex Bennée
2024-06-28 12:42 ` [PATCH 01/23] tests/lcitool: fix debian-i686-cross toolchain prefix Alex Bennée
2024-06-28 18:04   ` Richard Henderson
2024-06-28 12:42 ` Alex Bennée [this message]
2024-06-28 14:34   ` [PATCH 02/23] target/i386: fix gen_prepare_size_nz condition Alex Bennée
2024-07-01  9:01     ` Igor Mammedov
2024-06-28 17:54   ` Richard Henderson
2024-06-28 22:35     ` Richard Henderson
2024-06-28 12:42 ` [PATCH 03/23] testing: restore some testing for i686 Alex Bennée
2024-06-28 12:42 ` [PATCH 04/23] tracepoints: move physmem trace points Alex Bennée
2024-06-28 18:07   ` Richard Henderson
2024-06-28 12:42 ` [PATCH 05/23] tests/docker: Specify --userns keep-id for Podman Alex Bennée
2024-06-28 12:42 ` [PATCH 06/23] tests/tcg/arm: Fix fcvt result messages Alex Bennée
2024-06-30  3:17   ` Richard Henderson
2024-06-28 12:42 ` [PATCH 07/23] test/plugin: make insn plugin less noisy by default Alex Bennée
2024-06-28 12:42 ` [PATCH 08/23] test/plugins: preserve the instruction record over translations Alex Bennée
2024-06-28 12:42 ` [PATCH 09/23] plugins/lockstep: preserve sock_path Alex Bennée
2024-06-28 12:42 ` [PATCH 10/23] plugins/lockstep: make mixed-mode safe Alex Bennée
2024-06-28 22:30   ` Richard Henderson
2024-06-28 12:42 ` [PATCH 11/23] plugins/lockstep: mention the one-insn-per-tb option Alex Bennée
2024-06-28 12:42 ` [PATCH 12/23] plugins/lockstep: clean-up output Alex Bennée
2024-06-28 12:42 ` [PATCH 13/23] gdbstub: Clean up process_string_cmd Alex Bennée
2024-06-28 12:42 ` [PATCH 14/23] gdbstub: Move GdbCmdParseEntry into a new header file Alex Bennée
2024-06-28 12:42 ` [PATCH 15/23] gdbstub: Add support for target-specific stubs Alex Bennée
2024-06-28 12:42 ` [PATCH 16/23] target/arm: Fix exception case in allocation_tag_mem_probe Alex Bennée
2024-06-28 12:42 ` [PATCH 17/23] target/arm: Make some MTE helpers widely available Alex Bennée
2024-06-28 12:42 ` [PATCH 18/23] target/arm: Factor out code for setting MTE TCF0 field Alex Bennée
2024-06-28 12:42 ` [PATCH 19/23] gdbstub: Make hex conversion function non-internal Alex Bennée
2024-06-28 12:42 ` [PATCH 20/23] gdbstub: Pass CPU context to command handler Alex Bennée
2024-06-28 12:42 ` [PATCH 21/23] gdbstub: Use true to set cmd_startswith Alex Bennée
2024-06-28 12:42 ` [PATCH 22/23] gdbstub: Add support for MTE in user mode Alex Bennée
2024-06-28 12:42 ` [PATCH 23/23] tests/tcg/aarch64: Add MTE gdbstub tests Alex Bennée

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