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charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260218-bsd-user-claude-v3-17-0137b37b221e@bsdimp.com>","References":"<20260218-bsd-user-claude-v3-0-0137b37b221e@bsdimp.com>","In-Reply-To":"<20260218-bsd-user-claude-v3-0-0137b37b221e@bsdimp.com>","To":"qemu-devel@nongnu.org","Cc":"=?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= ,\n Kyle Evans ,\n =?utf-8?q?Marc-Andr=C3=A9_Lureau?= ,\n Paolo Bonzini ,\n =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= ,\n Riku Voipio , Warner Losh ,\n Stacey Son ,\n Richard Henderson ","X-Mailer":"b4 0.14.3","X-Developer-Signature":"v=1; a=openpgp-sha256; l=1559; i=imp@bsdimp.com;\n h=from:subject:message-id; bh=mBs5Y0mZEl6PwncKqPNyZPiCKdK9StT+eagUv/bboAk=;\n b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBplp4sEcouz6NcTRXDUcuJFFdQ3iydZPbk4co6I\n mBgasmPcaOJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZaeLAAKCRBsHNEofbAR\n AB5tEAC1fEvULmkKd4WgsCrWZie4rzZ8jf3nQIiwvrtXa66Gr+iV/g1XwTWEJskinfyRktNJlCJ\n +tu41p19iBRTmokxzswlQVFwowgjD8eoMiNby3wVuYeB6JDqX8FNUT4t9e2xVHeKmMuVtpa6ofj\n UIyHOifL63khjyFjW+tDOP/dyLDh6cdmK2CmgtcLL3wMz/YVaAJsHzOc1aAf1JU9GIceAuTNrjm\n T7CJXUnchvwaQJAvB+d/SVx8Jn385Ycr4mTsvCj/9rhItp6fU9fco5RNyigqK3o8BEekLYRDunm\n WPMdt4GYxuIdGZoLWsBFmaSA3F5npyJNvc2tH3aH2kxXHSOE5JbvobdLGhBR8hkP5h5JAQ0Q8Nz\n y/k3czYzHIVS+UWrr2xg0LQTDmmU06WRPfvFf22tSPs3hysmNzaFCAZiCT4nkRDfyLj/OoMEiAO\n LdRuacmlR19PrURjiRbhbb6coBC4PovtxzLHqOgXHHbJJQgudevBuWeACbq/16VnSYnXn1n/dra\n Sf4T5J238swTtW2hHXFc635XkoShwzPMjdA3OHueXjYA8RcKv6r+2iuw/6+HbWRJH7K6mwZ2jyA\n S3yeSTFcPcozBEvJNNA+rNOdKrtKiC5VbhsMrbbn3+sDbyzj2JXjbF4cA85+ygEPB+r3oTYUl31\n jwNWx72nggBTwAA==","X-Developer-Key":"i=imp@bsdimp.com; a=openpgp;\n fpr=2035F894B00AA3CF7CCDE1B76C1CD1287DB01100","Received-SPF":"none client-ip=2607:f8b0:4864:20::335;\n envelope-from=imp@bsdimp.com; helo=mail-ot1-x335.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,\n DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_NONE=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":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"From: Stacey Son \n\nAdd implementation of semop(2) syscall to perform System V semaphore\noperations. Converts target sembuf array to host format and executes\noperations.\n\nSigned-off-by: Stacey Son \nReviewed-by: Richard Henderson \nSigned-off-by: Warner Losh \n---\n bsd-user/bsd-misc.h | 22 ++++++++++++++++++++++\n 1 file changed, 22 insertions(+)","diff":"diff --git a/bsd-user/bsd-misc.h b/bsd-user/bsd-misc.h\nindex 3dffb977a5..e1e552b58f 100644\n--- a/bsd-user/bsd-misc.h\n+++ b/bsd-user/bsd-misc.h\n@@ -77,6 +77,28 @@ static inline abi_long do_bsd_semget(abi_long key, int nsems,\n target_to_host_bitmask(target_flags, ipc_flags_tbl)));\n }\n \n+/* semop(2) */\n+static inline abi_long do_bsd_semop(int semid, abi_long ptr, unsigned nsops)\n+{\n+ g_autofree struct sembuf *sops = g_malloc(nsops * sizeof(struct sembuf));\n+ struct target_sembuf *target_sembuf;\n+ int i;\n+\n+ target_sembuf = lock_user(VERIFY_READ, ptr,\n+ nsops * sizeof(struct target_sembuf), 1);\n+ if (target_sembuf == NULL) {\n+ return -TARGET_EFAULT;\n+ }\n+ for (i = 0; i < nsops; i++) {\n+ __get_user(sops[i].sem_num, &target_sembuf[i].sem_num);\n+ __get_user(sops[i].sem_op, &target_sembuf[i].sem_op);\n+ __get_user(sops[i].sem_flg, &target_sembuf[i].sem_flg);\n+ }\n+ unlock_user(target_sembuf, ptr, 0);\n+\n+ return semop(semid, sops, nsops);\n+}\n+\n /* getdtablesize(2) */\n static inline abi_long do_bsd_getdtablesize(void)\n {\n","prefixes":["v3","17/24"]}