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Mon, 15 Apr 2024 08:26:03 +0000 Received: from AS8P193MB1285.EURP193.PROD.OUTLOOK.COM ([fe80::5403:f1ad:efaf:1f71]) by AS8P193MB1285.EURP193.PROD.OUTLOOK.COM ([fe80::5403:f1ad:efaf:1f71%4]) with mapi id 15.20.7452.049; Mon, 15 Apr 2024 08:26:03 +0000 Message-ID: Date: Mon, 15 Apr 2024 10:27:55 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] sim: riscv: Make stack 16-byte aligned To: Andrew Burgess , "gdb-patches@sourceware.org" References: <87bk6e6fdc.fsf@redhat.com> Content-Language: en-US From: Bernd Edlinger In-Reply-To: <87bk6e6fdc.fsf@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-TMN: [h5Z80frfwU5/zjIgJjvStx+sjxvqV/frXep1N4JT06j/8z0gJV7apnjz4e43gOsP] X-ClientProxiedBy: BE1P281CA0206.DEUP281.PROD.OUTLOOK.COM (2603:10a6:b10:89::17) To AS8P193MB1285.EURP193.PROD.OUTLOOK.COM (2603:10a6:20b:333::21) X-Microsoft-Original-Message-ID: <9e737a0b-24ad-4bd1-acd2-8dc8c80b4f79@hotmail.de> MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS8P193MB1285:EE_|GV1P193MB2419:EE_ X-MS-Office365-Filtering-Correlation-Id: 5d55ce8c-d087-4e0c-da40-08dc5d25b077 X-Microsoft-Antispam: BCL:0; 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> > Typo: functions. > >> e.g. >> >> FAIL: gcc.c-torture/execute/nest-align-1.c -O0 execution test >> FAIL: gcc.c-torture/execute/nest-stdar-1.c -O0 execution test >> FAIL: gcc.c-torture/execute/va-arg-12.c -O0 execution test >> FAIL: gcc.c-torture/execute/va-arg-15.c -O0 execution test >> FAIL: gcc.c-torture/execute/va-arg-16.c -O0 execution test >> FAIL: gcc.c-torture/execute/va-arg-17.c -O0 execution test >> FAIL: gcc.c-torture/execute/va-arg-20.c -O0 execution test >> FAIL: gcc.c-torture/execute/va-arg-26.c -O0 execution test >> ... >> --- >> sim/riscv/sim-main.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/sim/riscv/sim-main.c b/sim/riscv/sim-main.c >> index 4e3672505c6..0876d455570 100644 >> --- a/sim/riscv/sim-main.c >> +++ b/sim/riscv/sim-main.c >> @@ -1586,6 +1586,8 @@ initialize_env (SIM_DESC sd, const char * const *argv, const char * const *env) >> sp = sp_flat - ((argc + 1 + envc + 1) * sizeof (address_word)); >> /* Then the argc. */ >> sp -= sizeof (unsigned_word); >> + /* Align to 16 bytes. */ >> + sp &= ~(address_word)15; > > I think you should use 'align_down' from common/sim-bits.h, as: > > /* Align to 16 bytes. */ > sp = align_down (sp, 15); > > Assuming that works then: > > Approved-By: Andrew Burgess > > Thanks, > Andrew > Okay, thanks for the hint about align_down. So I changed that to: sp = align_down (sp, 16); and it worked... Pushed. Thanks Bernd.