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bh=51si67oMLHfMigUNv16V9jLVZNglhcVFQhgyfCf3TyU=; b=R6w1JZzJtE0PEXwvkt8tM9vq6CspvnTdkkflPJ6wEwBu9nFQEwe++OhhG3Kk/dwXoWJgoC wT+BK4VoySeSozYJ8avNjI/NEEMOn8lGD5lf5BCYJ4pX7zKsYKRZID3FXPQ59lxM6Oopgs AJYOiasSPfs5Boqy8ag8jWIdgoIfQVo= X-MC-Unique: TAxe2ATXN8OR6zCq3DTo_w-1 From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Cc: Halil Pasic , qemu-s390x@nongnu.org, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Richard Henderson , Cornelia Huck , David Hildenbrand , Eric Farman , Christian Borntraeger , Thomas Huth , Janosch Frank Subject: [PULL v2 02/11] dump: Write ELF section headers right after ELF header Date: Tue, 25 Oct 2022 11:49:54 +0400 Message-Id: <20221025075003.18161-3-marcandre.lureau@redhat.com> In-Reply-To: <20221025075003.18161-1-marcandre.lureau@redhat.com> References: <20221025075003.18161-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -32 X-Spam_score: -3.3 X-Spam_bar: --- X-Spam_report: (-3.3 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.503, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Qemu-devel" Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1666688043023100001 From: Janosch Frank Let's start bundling the writes of the headers and of the data so we have a clear ordering between them. Since the ELF header uses offsets to the headers we can freely order them. Signed-off-by: Janosch Frank Reviewed-by: Marc-Andr=C3=A9 Lureau Message-Id: <20221017083822.43118-3-frankja@linux.ibm.com> --- dump/dump.c | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/dump/dump.c b/dump/dump.c index e7a3b54ebe..b168a25321 100644 --- a/dump/dump.c +++ b/dump/dump.c @@ -583,6 +583,8 @@ static void dump_begin(DumpState *s, Error **errp) * -------------- * | elf header | * -------------- + * | sctn_hdr | + * -------------- * | PT_NOTE | * -------------- * | PT_LOAD | @@ -591,8 +593,6 @@ static void dump_begin(DumpState *s, Error **errp) * -------------- * | PT_LOAD | * -------------- - * | sec_hdr | - * -------------- * | elf note | * -------------- * | memory | @@ -608,20 +608,20 @@ static void dump_begin(DumpState *s, Error **errp) return; } =20 - /* write PT_NOTE to vmcore */ - write_elf_phdr_note(s, errp); + /* write section headers to vmcore */ + write_elf_section_headers(s, errp); if (*errp) { return; } =20 - /* write all PT_LOADs to vmcore */ - write_elf_phdr_loads(s, errp); + /* write PT_NOTE to vmcore */ + write_elf_phdr_note(s, errp); if (*errp) { return; } =20 - /* write section headers to vmcore */ - write_elf_section_headers(s, errp); + /* write all PT_LOADs to vmcore */ + write_elf_phdr_loads(s, errp); if (*errp) { return; } @@ -1868,16 +1868,13 @@ static void dump_init(DumpState *s, int fd, bool ha= s_format, } =20 if (dump_is_64bit(s)) { - s->phdr_offset =3D sizeof(Elf64_Ehdr); - s->shdr_offset =3D s->phdr_offset + sizeof(Elf64_Phdr) * s->phdr_n= um; - s->note_offset =3D s->shdr_offset + sizeof(Elf64_Shdr) * s->shdr_n= um; - s->memory_offset =3D s->note_offset + s->note_size; + s->shdr_offset =3D sizeof(Elf64_Ehdr); + s->phdr_offset =3D s->shdr_offset + sizeof(Elf64_Shdr) * s->shdr_n= um; + s->note_offset =3D s->phdr_offset + sizeof(Elf64_Phdr) * s->phdr_n= um; } else { - - s->phdr_offset =3D sizeof(Elf32_Ehdr); - s->shdr_offset =3D s->phdr_offset + sizeof(Elf32_Phdr) * s->phdr_n= um; - s->note_offset =3D s->shdr_offset + sizeof(Elf32_Shdr) * s->shdr_n= um; - s->memory_offset =3D s->note_offset + s->note_size; + s->shdr_offset =3D sizeof(Elf32_Ehdr); + s->phdr_offset =3D s->shdr_offset + sizeof(Elf32_Shdr) * s->shdr_n= um; + s->note_offset =3D s->phdr_offset + sizeof(Elf32_Phdr) * s->phdr_n= um; } =20 return; --=20 2.37.3