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helo=lists.xenproject.org; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C From: Jason Andryuk To: CC: Jason Andryuk , Andrew Cooper , George Dunlap , "Jan Beulich" , Julien Grall , "Stefano Stabellini" Subject: [PATCH v4 4/5] libelf: Expand ELF note printing Date: Mon, 25 Mar 2024 16:45:14 -0400 Message-ID: <20240325204515.250203-5-jason.andryuk@amd.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240325204515.250203-1-jason.andryuk@amd.com> References: <20240325204515.250203-1-jason.andryuk@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB03.amd.com: jason.andryuk@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF0001A102:EE_|LV3PR12MB9234:EE_ X-MS-Office365-Filtering-Correlation-Id: 3ba94830-f9ca-4a6a-3df1-08dc4d0c7fa9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Mar 2024 20:45:25.6043 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3ba94830-f9ca-4a6a-3df1-08dc4d0c7fa9 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF0001A102.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9234 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1711399561057100003 Content-Type: text/plain; charset="utf-8" The XEN_ELFNOTE_L1_MFN_VALID is an array of pairs of values, but it is printed as: (XEN) ELF: note: L1_MFN_VALID =3D 0 This is a limitation of only printing either string or numeric values. Switch from the boolean to an enum which allows more flexibility in printing the values. Introduce ELFNOTE_NAME to only print the name without a value like: (XEN) ELF: note: L1_MFN_VALID Details can optionally be printed for specific notes. Signed-off-by: Jason Andryuk Reviewed-by: Jan Beulich --- v3: Remove fatal size check Don't print values - just the name for presence v4: Use switch Always print newline for ELFNOTE_NAME --- xen/common/libelf/libelf-dominfo.c | 60 ++++++++++++++++++------------ 1 file changed, 37 insertions(+), 23 deletions(-) diff --git a/xen/common/libelf/libelf-dominfo.c b/xen/common/libelf/libelf-= dominfo.c index a13a5e4db6..e7b44d238b 100644 --- a/xen/common/libelf/libelf-dominfo.c +++ b/xen/common/libelf/libelf-dominfo.c @@ -101,26 +101,30 @@ elf_errorstatus elf_xen_parse_note(struct elf_binary = *elf, /* *INDENT-OFF* */ static const struct { const char *name; - bool str; + enum { + ELFNOTE_INT, + ELFNOTE_STRING, + ELFNOTE_NAME, + } type; } note_desc[] =3D { - [XEN_ELFNOTE_ENTRY] =3D { "ENTRY", 0}, - [XEN_ELFNOTE_HYPERCALL_PAGE] =3D { "HYPERCALL_PAGE", 0}, - [XEN_ELFNOTE_VIRT_BASE] =3D { "VIRT_BASE", 0}, - [XEN_ELFNOTE_INIT_P2M] =3D { "INIT_P2M", 0}, - [XEN_ELFNOTE_PADDR_OFFSET] =3D { "PADDR_OFFSET", 0}, - [XEN_ELFNOTE_HV_START_LOW] =3D { "HV_START_LOW", 0}, - [XEN_ELFNOTE_XEN_VERSION] =3D { "XEN_VERSION", 1}, - [XEN_ELFNOTE_GUEST_OS] =3D { "GUEST_OS", 1}, - [XEN_ELFNOTE_GUEST_VERSION] =3D { "GUEST_VERSION", 1}, - [XEN_ELFNOTE_LOADER] =3D { "LOADER", 1}, - [XEN_ELFNOTE_PAE_MODE] =3D { "PAE_MODE", 1}, - [XEN_ELFNOTE_FEATURES] =3D { "FEATURES", 1}, - [XEN_ELFNOTE_SUPPORTED_FEATURES] =3D { "SUPPORTED_FEATURES", 0}, - [XEN_ELFNOTE_BSD_SYMTAB] =3D { "BSD_SYMTAB", 1}, - [XEN_ELFNOTE_L1_MFN_VALID] =3D { "L1_MFN_VALID", false }, - [XEN_ELFNOTE_SUSPEND_CANCEL] =3D { "SUSPEND_CANCEL", 0 }, - [XEN_ELFNOTE_MOD_START_PFN] =3D { "MOD_START_PFN", 0 }, - [XEN_ELFNOTE_PHYS32_ENTRY] =3D { "PHYS32_ENTRY", 0 }, + [XEN_ELFNOTE_ENTRY] =3D { "ENTRY", ELFNOTE_INT }, + [XEN_ELFNOTE_HYPERCALL_PAGE] =3D { "HYPERCALL_PAGE", ELFNOTE_INT }, + [XEN_ELFNOTE_VIRT_BASE] =3D { "VIRT_BASE", ELFNOTE_INT }, + [XEN_ELFNOTE_INIT_P2M] =3D { "INIT_P2M", ELFNOTE_INT }, + [XEN_ELFNOTE_PADDR_OFFSET] =3D { "PADDR_OFFSET", ELFNOTE_INT }, + [XEN_ELFNOTE_HV_START_LOW] =3D { "HV_START_LOW", ELFNOTE_INT }, + [XEN_ELFNOTE_XEN_VERSION] =3D { "XEN_VERSION", ELFNOTE_STRING }, + [XEN_ELFNOTE_GUEST_OS] =3D { "GUEST_OS", ELFNOTE_STRING }, + [XEN_ELFNOTE_GUEST_VERSION] =3D { "GUEST_VERSION", ELFNOTE_STRING = }, + [XEN_ELFNOTE_LOADER] =3D { "LOADER", ELFNOTE_STRING }, + [XEN_ELFNOTE_PAE_MODE] =3D { "PAE_MODE", ELFNOTE_STRING }, + [XEN_ELFNOTE_FEATURES] =3D { "FEATURES", ELFNOTE_STRING }, + [XEN_ELFNOTE_SUPPORTED_FEATURES] =3D { "SUPPORTED_FEATURES", ELFNO= TE_INT }, + [XEN_ELFNOTE_BSD_SYMTAB] =3D { "BSD_SYMTAB", ELFNOTE_STRING }, + [XEN_ELFNOTE_L1_MFN_VALID] =3D { "L1_MFN_VALID", ELFNOTE_NAME }, + [XEN_ELFNOTE_SUSPEND_CANCEL] =3D { "SUSPEND_CANCEL", ELFNOTE_INT }, + [XEN_ELFNOTE_MOD_START_PFN] =3D { "MOD_START_PFN", ELFNOTE_INT }, + [XEN_ELFNOTE_PHYS32_ENTRY] =3D { "PHYS32_ENTRY", ELFNOTE_INT }, }; /* *INDENT-ON* */ =20 @@ -136,8 +140,9 @@ elf_errorstatus elf_xen_parse_note(struct elf_binary *e= lf, return 0; } =20 - if ( note_desc[type].str ) + switch ( note_desc[type].type ) { + case ELFNOTE_STRING : str =3D elf_strval(elf, elf_note_desc(elf, note)); if (str =3D=3D NULL) /* elf_strval will mark elf broken if it fails so no need to l= og */ @@ -145,13 +150,18 @@ elf_errorstatus elf_xen_parse_note(struct elf_binary = *elf, elf_msg(elf, "ELF: note: %s =3D \"%s\"\n", note_desc[type].name, s= tr); parms->elf_notes[type].type =3D XEN_ENT_STR; parms->elf_notes[type].data.str =3D str; - } - else - { + break; + + case ELFNOTE_INT: val =3D elf_note_numeric(elf, note); elf_msg(elf, "ELF: note: %s =3D %#" PRIx64 "\n", note_desc[type].n= ame, val); parms->elf_notes[type].type =3D XEN_ENT_LONG; parms->elf_notes[type].data.num =3D val; + break; + + case ELFNOTE_NAME: + elf_msg(elf, "ELF: note: %s", note_desc[type].name); + break; } parms->elf_notes[type].name =3D note_desc[type].name; =20 @@ -218,6 +228,10 @@ elf_errorstatus elf_xen_parse_note(struct elf_binary *= elf, parms->phys_entry =3D val; break; } + + if ( note_desc[type].type =3D=3D ELFNOTE_NAME) + elf_msg(elf, "\n"); + return 0; } =20 --=20 2.44.0