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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::22e; envelope-from=viktor.prutyanov@phystech.edu; helo=mail-lj1-x22e.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: , Cc: qemu-devel@nongnu.org, Viktor Prutyanov Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @phystech-edu.20210112.gappssmtp.com) X-ZM-MESSAGEID: 1635956231781100001 Content-Type: text/plain; charset="utf-8" Move out PE directory search functionality to be reused not only for Debug Directory processing but for arbitrary PE directory. Signed-off-by: Viktor Prutyanov --- contrib/elf2dmp/main.c | 66 +++++++++++++++++++++++------------------- 1 file changed, 37 insertions(+), 29 deletions(-) diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c index beb534e79c..a62fde23cc 100644 --- a/contrib/elf2dmp/main.c +++ b/contrib/elf2dmp/main.c @@ -332,6 +332,40 @@ static int fill_context(KDDEBUGGER_DATA64 *kdbg, return 0; } =20 +static int pe_get_data_dir_entry(uint64_t base, void *start_addr, int idx, + void *entry, size_t size, struct va_space *vs) +{ + const char e_magic[2] =3D "MZ"; + const char Signature[4] =3D "PE\0\0"; + IMAGE_DOS_HEADER *dos_hdr =3D start_addr; + IMAGE_NT_HEADERS64 nt_hdrs; + IMAGE_FILE_HEADER *file_hdr =3D &nt_hdrs.FileHeader; + IMAGE_OPTIONAL_HEADER64 *opt_hdr =3D &nt_hdrs.OptionalHeader; + IMAGE_DATA_DIRECTORY *data_dir =3D nt_hdrs.OptionalHeader.DataDirector= y; + + if (memcmp(&dos_hdr->e_magic, e_magic, sizeof(e_magic))) { + return 1; + } + + if (va_space_rw(vs, base + dos_hdr->e_lfanew, + &nt_hdrs, sizeof(nt_hdrs), 0)) { + return 1; + } + + if (memcmp(&nt_hdrs.Signature, Signature, sizeof(Signature)) || + file_hdr->Machine !=3D 0x8664 || opt_hdr->Magic !=3D 0x020b) { + return 1; + } + + if (va_space_rw(vs, + base + data_dir[idx].VirtualAddress, + entry, size, 0)) { + return 1; + } + + return 0; +} + static int write_dump(struct pa_space *ps, WinDumpHeader64 *hdr, const char *name) { @@ -368,42 +402,16 @@ static int write_dump(struct pa_space *ps, static int pe_get_pdb_symstore_hash(uint64_t base, void *start_addr, char *hash, struct va_space *vs) { - const char e_magic[2] =3D "MZ"; - const char Signature[4] =3D "PE\0\0"; const char sign_rsds[4] =3D "RSDS"; - IMAGE_DOS_HEADER *dos_hdr =3D start_addr; - IMAGE_NT_HEADERS64 nt_hdrs; - IMAGE_FILE_HEADER *file_hdr =3D &nt_hdrs.FileHeader; - IMAGE_OPTIONAL_HEADER64 *opt_hdr =3D &nt_hdrs.OptionalHeader; - IMAGE_DATA_DIRECTORY *data_dir =3D nt_hdrs.OptionalHeader.DataDirector= y; IMAGE_DEBUG_DIRECTORY debug_dir; OMFSignatureRSDS rsds; char *pdb_name; size_t pdb_name_sz; size_t i; =20 - QEMU_BUILD_BUG_ON(sizeof(*dos_hdr) >=3D ELF2DMP_PAGE_SIZE); - - if (memcmp(&dos_hdr->e_magic, e_magic, sizeof(e_magic))) { - return 1; - } - - if (va_space_rw(vs, base + dos_hdr->e_lfanew, - &nt_hdrs, sizeof(nt_hdrs), 0)) { - return 1; - } - - if (memcmp(&nt_hdrs.Signature, Signature, sizeof(Signature)) || - file_hdr->Machine !=3D 0x8664 || opt_hdr->Magic !=3D 0x020b) { - return 1; - } - - printf("Debug Directory RVA =3D 0x%08"PRIx32"\n", - (uint32_t)data_dir[IMAGE_FILE_DEBUG_DIRECTORY].VirtualAddress); - - if (va_space_rw(vs, - base + data_dir[IMAGE_FILE_DEBUG_DIRECTORY].VirtualAddress, - &debug_dir, sizeof(debug_dir), 0)) { + if (pe_get_data_dir_entry(base, start_addr, IMAGE_FILE_DEBUG_DIRECTORY, + &debug_dir, sizeof(debug_dir), vs)) { + eprintf("Failed to get Debug Directory\n"); return 1; } =20 --=20 2.31.1