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Mon, 20 Jan 2025 03:20:47 +0000 (UTC) Received: from fedora.redhat.com (unknown [10.22.80.25]) by mx-prod-int-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 44596195608A; Mon, 20 Jan 2025 03:20:47 +0000 (UTC) From: Aaron Merey To: elfutils-devel@sourceware.org Cc: Aaron Merey Subject: [PATCH 04/15] dwarf_getsrcfiles.c: Add locking Date: Sun, 19 Jan 2025 22:20:30 -0500 Message-ID: <20250120032041.280173-4-amerey@redhat.com> In-Reply-To: <20250120032041.280173-1-amerey@redhat.com> References: <20250120032041.280173-1-amerey@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.15 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: SjUDd2xQj_z_a-D215s24AgOhXkxr6GuWg-FgKJPj4M_1737343248 X-Mimecast-Originator: redhat.com content-type: text/plain; charset="US-ASCII"; x-default=true X-Spam-Status: No, score=-13.6 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H5, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: elfutils-devel@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Elfutils-devel mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: elfutils-devel-bounces~patchwork=sourceware.org@sourceware.org * libdw/dwarf_getsrcfiles.c (dwarf_getsrcfiles): Use dwarf_lock. Signed-off-by: Aaron Merey --- libdw/dwarf_getsrcfiles.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/libdw/dwarf_getsrcfiles.c b/libdw/dwarf_getsrcfiles.c index 24e4b7d2..3029ce69 100644 --- a/libdw/dwarf_getsrcfiles.c +++ b/libdw/dwarf_getsrcfiles.c @@ -47,9 +47,10 @@ dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles) } int res = -1; + struct Dwarf_CU *const cu = cudie->cu; + mutex_lock (cudie->cu->dbg->dwarf_lock); /* Get the information if it is not already known. */ - struct Dwarf_CU *const cu = cudie->cu; if (cu->files == NULL) { /* For split units there might be a simple file table (without lines). @@ -96,7 +97,10 @@ dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles) Dwarf_Off debug_line_offset; if (__libdw_formptr (stmt_list, IDX_debug_line, DWARF_E_NO_DEBUG_LINE, NULL, &debug_line_offset) == NULL) - return -1; + { + mutex_unlock (cudie->cu->dbg->dwarf_lock); + return -1; + } res = __libdw_getsrcfiles (cu->dbg, debug_line_offset, __libdw_getcompdir (cudie), @@ -115,8 +119,7 @@ dwarf_getsrcfiles (Dwarf_Die *cudie, Dwarf_Files **files, size_t *nfiles) *nfiles = cu->files->nfiles; } - // XXX Eventually: unlocking here. - + mutex_unlock (cudie->cu->dbg->dwarf_lock); return res; } INTDEF (dwarf_getsrcfiles)