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Message-ID: Date: Fri, 4 Aug 2023 08:28:47 +0200 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.13.1 Subject: [PATCH v4 4/8] Arm: annotate entry points with type and size Content-Language: en-US From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Julien Grall , Stefano Stabellini , Volodymyr Babchuk , Bertrand Marquis , George Dunlap References: In-Reply-To: Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: FR0P281CA0006.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:15::11) To DU2PR04MB8790.eurprd04.prod.outlook.com (2603:10a6:10:2e1::23) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DU2PR04MB8790:EE_|PA4PR04MB7549:EE_ X-MS-Office365-Filtering-Correlation-Id: b92fb431-0328-4079-04d1-08db94b41093 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DU2PR04MB8790.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230028)(136003)(396003)(366004)(39860400002)(376002)(346002)(451199021)(1800799003)(186006)(4326008)(6916009)(316002)(2616005)(66946007)(66476007)(66556008)(5660300002)(26005)(41300700001)(6506007)(8676002)(8936002)(31696002)(54906003)(6512007)(6486002)(478600001)(31686004)(38100700002)(2906002)(86362001)(36756003)(45980500001)(43740500002);DIR:OUT;SFP:1101; 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charset="utf-8" Use the generic framework in xen/linkage.h. No change in generated code except for the changed padding value (noticable when config.gz isn't a multiple of 4 in size). Plus of course the converted symbols change to be hidden ones. Note that ASM_INT() is switched to DATA(), not DATA_LOCAL(), as the only use site wants the symbol global anyway. Signed-off-by: Jan Beulich Reviewed-by: Julien Grall --- Only one each of the assembly files is being converted for now. More could be done right here or as follow-on in separate patches. The ASM_INT() redundancy of .global will be eliminated by a subsequent patch. --- v3: New. --- a/xen/arch/arm/arm32/lib/div64.S +++ b/xen/arch/arm/arm32/lib/div64.S @@ -42,7 +42,7 @@ * Clobbered regs: xl, ip */ =20 -ENTRY(__do_div64) +FUNC(__do_div64) UNWIND(.fnstart) =20 @ Test for easy paths first. @@ -206,4 +206,4 @@ Ldiv0_64: ldr pc, [sp], #8 =20 UNWIND(.fnend) -ENDPROC(__do_div64) +END(__do_div64) --- a/xen/arch/arm/arm64/lib/clear_page.S +++ b/xen/arch/arm/arm64/lib/clear_page.S @@ -22,7 +22,7 @@ * Parameters: * x0 - dest */ -ENTRY(clear_page) +FUNC(clear_page) mrs x1, dczid_el0 and w1, w1, #0xf mov x2, #4 @@ -33,4 +33,4 @@ ENTRY(clear_page) tst x0, #(PAGE_SIZE - 1) b.ne 1b ret -ENDPROC(clear_page) +END(clear_page) --- a/xen/arch/arm/include/asm/asm_defns.h +++ b/xen/arch/arm/include/asm/asm_defns.h @@ -5,6 +5,7 @@ /* NB. Auto-generated from arch/.../asm-offsets.c */ #include #endif +#include #include =20 /* Macros for generic assembly code */ @@ -28,10 +29,7 @@ label: .asciz msg; .popsection =20 #define ASM_INT(label, val) \ - .p2align 2; \ -label: .long (val); \ - .size label, . - label; \ - .type label, %object + DATA(label, 4) .long (val); END(label) =20 #endif /* __ARM_ASM_DEFNS_H__ */ /* --- a/xen/arch/arm/include/asm/config.h +++ b/xen/arch/arm/include/asm/config.h @@ -53,7 +53,8 @@ =20 /* Linkage for ARM */ #ifdef __ASSEMBLY__ -#define ALIGN .align 2 +#define CODE_ALIGN 4 +#define ALIGN .balign CODE_ALIGN #define ENTRY(name) \ .globl name; \ ALIGN; \ @@ -61,8 +62,6 @@ #define GLOBAL(name) \ .globl name; \ name: -#define END(name) \ - .size name, .-name #define ENDPROC(name) \ .type name, %function; \ END(name)