From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.baldwin.cx (bigwig.baldwin.cx [66.216.25.90]) by sourceware.org (Postfix) with ESMTPS id 096D33858C54; Thu, 24 Mar 2022 20:56:25 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 096D33858C54 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=FreeBSD.org Authentication-Results: sourceware.org; spf=fail smtp.mailfrom=FreeBSD.org Received: from ralph.com (ralph.baldwin.cx [66.234.199.215]) by mail.baldwin.cx (Postfix) with ESMTPSA id 4F7BD1A84E1D; Thu, 24 Mar 2022 16:56:24 -0400 (EDT) From: John Baldwin To: binutils@sourceware.org, gdb-patches@sourceware.org Subject: [PATCH 3/5] Use pseudosections for NT_FREEBSD_X86_SEGBASES core dump notes. Date: Thu, 24 Mar 2022 13:56:14 -0700 Message-Id: <20220324205616.8517-4-jhb@FreeBSD.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220324205616.8517-1-jhb@FreeBSD.org> References: <20220324205616.8517-1-jhb@FreeBSD.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.4 (mail.baldwin.cx [0.0.0.0]); Thu, 24 Mar 2022 16:56:24 -0400 (EDT) X-Virus-Scanned: clamav-milter 0.103.1 at mail.baldwin.cx X-Virus-Status: Clean X-Spam-Status: No, score=-12.2 required=5.0 tests=BAYES_00, FORGED_SPF_HELO, GIT_PATCH_0, KAM_DMARC_STATUS, KHOP_HELO_FCRDNS, SPF_HELO_PASS, SPF_SOFTFAIL, TXREP, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 24 Mar 2022 20:56:26 -0000 This includes adding pseudosections when reading a core dump as well as support for writing out a core dump note from a pseudosection. bfd/ChangeLog: * elf-bfd.h (elfcore_write_x86_segbases): New. * elf.c (elfcore_grok_freebsd_note): Add pseudosections for NT_FREEBSD_X86_SEGBASES register notes. (elfcore_write_x86_segbases): New. (elfcore_write_register_note): Write NT_FREEBSD_X86_SEGBASES register notes. --- bfd/ChangeLog | 9 +++++++++ bfd/elf-bfd.h | 2 ++ bfd/elf.c | 14 ++++++++++++++ 3 files changed, 25 insertions(+) diff --git a/bfd/ChangeLog b/bfd/ChangeLog index d1a31efe59c..9085d3a7664 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,12 @@ +2022-03-23 John Baldwin + + * elf-bfd.h (elfcore_write_x86_segbases): New. + * elf.c (elfcore_grok_freebsd_note): Add pseudosections for + NT_FREEBSD_X86_SEGBASES register notes. + (elfcore_write_x86_segbases): New. + (elfcore_write_register_note): Write NT_FREEBSD_X86_SEGBASES + register notes. + 2022-03-23 John Baldwin * elf.c (elfcore_grok_freebsd_note): Remove checks for namesz. diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h index 5c3985f6e57..c7c0a793b15 100644 --- a/bfd/elf-bfd.h +++ b/bfd/elf-bfd.h @@ -2786,6 +2786,8 @@ extern char *elfcore_write_prxfpreg (bfd *, char *, int *, const void *, int); extern char *elfcore_write_xstatereg (bfd *, char *, int *, const void *, int); +extern char *elfcore_write_x86_segbases + (bfd *, char *, int *, const void *, int); extern char *elfcore_write_ppc_vmx (bfd *, char *, int *, const void *, int); extern char *elfcore_write_ppc_vsx diff --git a/bfd/elf.c b/bfd/elf.c index a99149e50b3..37c53cfdf32 100644 --- a/bfd/elf.c +++ b/bfd/elf.c @@ -11027,6 +11027,9 @@ elfcore_grok_freebsd_note (bfd *abfd, Elf_Internal_Note *note) case NT_FREEBSD_PROCSTAT_AUXV: return elfcore_make_auxv_note_section (abfd, note, 4); + case NT_FREEBSD_X86_SEGBASES: + return elfcore_make_note_pseudosection (abfd, ".reg-x86-segbases", note); + case NT_X86_XSTATE: return elfcore_grok_xstatereg (abfd, note); @@ -11904,6 +11907,15 @@ elfcore_write_xstatereg (bfd *abfd, char *buf, int *bufsiz, note_name, NT_X86_XSTATE, xfpregs, size); } +char * +elfcore_write_x86_segbases (bfd *abfd, char *buf, int *bufsiz, + const void *regs, int size) +{ + char *note_name = "FreeBSD"; + return elfcore_write_note (abfd, buf, bufsiz, + note_name, NT_FREEBSD_X86_SEGBASES, regs, size); +} + char * elfcore_write_ppc_vmx (bfd *abfd, char *buf, @@ -12441,6 +12453,8 @@ elfcore_write_register_note (bfd *abfd, return elfcore_write_prxfpreg (abfd, buf, bufsiz, data, size); if (strcmp (section, ".reg-xstate") == 0) return elfcore_write_xstatereg (abfd, buf, bufsiz, data, size); + if (strcmp (section, ".reg-x86-segbases") == 0) + return elfcore_write_x86_segbases (abfd, buf, bufsiz, data, size); if (strcmp (section, ".reg-ppc-vmx") == 0) return elfcore_write_ppc_vmx (abfd, buf, bufsiz, data, size); if (strcmp (section, ".reg-ppc-vsx") == 0) -- 2.34.1