Thanks Stefan for explaining the method. After following above method when I run below command to compile my custom device in Qemu source code , I get the output on terminal which is attached in a file for your reference.
Command:- make -j8 -C build Most of the lines in attached file indicate that error might be due to helper.c file. How to resolve it? My qemu version:4.2.50 Thanks, Priyamvad Acharya On Tue, 3 Mar 2020 at 16:16, Stefan Hajnoczi <stefa...@gmail.com> wrote: > On Tue, Mar 3, 2020 at 7:45 AM Priyamvad Acharya > <priyamvad.agni...@gmail.com> wrote: > > Please use Reply-All when replying to mailing list emails so that > qemu-devel@nongnu.org is included in the CC list. That way the > discussion stays on the mailing list. > > > Hi, > > I have written code to emulate a custom PCI device. > > Now I want to run custom device with Qemu, so that user application can > perform read/write operation with custom PCI device. > > So what is the method to do it? > > 1. Add the source file somewhere below hw/. > 2. Add a make rule to build the object file in Makefile.objs in the > same directory as the source file. > 3. Compile QEMU and run with -device testpci. > > > I am new to emulating a custom device model in Qemu, so request you to > explain me in that way. > > Reading the source code is necessary to understand how things work. > You can find many examples of devices in the hw/ directory. Using > git-log(1) can be helpful because it shows how new devices were > introduced. > > Stefan >
target/arm/arm-semi.o: In function `do_arm_semihosting': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/arm-semi.c:784: undefined reference to `qemu_semihosting_console_outc' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/arm-semi.c:787: undefined reference to `qemu_semihosting_console_outs' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/arm-semi.c:815: undefined reference to `qemu_semihosting_console_inc' target/arm/cpu.o: In function `arm_v7m_cpu_exec_interrupt': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/cpu.c:483: undefined reference to `armv7m_nvic_can_take_pending_exception' target/arm/m_helper.o: In function `v7m_stack_write': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:260: undefined reference to `armv7m_nvic_set_pending_derived' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:263: undefined reference to `armv7m_nvic_set_pending_lazyfp' target/arm/m_helper.o: In function `v7m_stack_read': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:329: undefined reference to `armv7m_nvic_set_pending' target/arm/m_helper.o: In function `helper_v7m_preserve_fp_state': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:356: undefined reference to `armv7m_nvic_set_pending_lazyfp' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:360: undefined reference to `armv7m_nvic_set_pending_lazyfp' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:399: undefined reference to `armv7m_nvic_can_take_pending_exception' target/arm/m_helper.o: In function `arm_v7m_load_vector': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:728: undefined reference to `armv7m_nvic_set_pending_derived' target/arm/m_helper.o: In function `v7m_push_callee_stack': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:796: undefined reference to `armv7m_nvic_set_pending' target/arm/m_helper.o: In function `v7m_exception_taken': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:838: undefined reference to `armv7m_nvic_get_pending_irq_info' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:946: undefined reference to `armv7m_nvic_acknowledge_irq' target/arm/m_helper.o: In function `v7m_update_fpccr': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:988: undefined reference to `armv7m_nvic_neg_prio_requested' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1004: undefined reference to `armv7m_nvic_get_ready_status' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1007: undefined reference to `armv7m_nvic_get_ready_status' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1010: undefined reference to `armv7m_nvic_get_ready_status' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1013: undefined reference to `armv7m_nvic_get_ready_status' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1016: undefined reference to `armv7m_nvic_get_ready_status' target/arm/m_helper.o:/lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1020: more undefined references to `armv7m_nvic_get_ready_status' follow target/arm/m_helper.o: In function `v7m_push_stack': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1204: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1249: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1254: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1272: undefined reference to `armv7m_nvic_set_pending' target/arm/m_helper.o: In function `do_v7m_exception_exit': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1408: undefined reference to `armv7m_nvic_raw_execution_priority' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1416: undefined reference to `armv7m_nvic_complete_irq' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1497: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1515: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1528: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1545: undefined reference to `armv7m_nvic_can_take_pending_exception' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1595: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1669: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1684: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1711: undefined reference to `armv7m_nvic_set_pending' /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1721: undefined reference to `armv7m_nvic_set_pending' target/arm/m_helper.o:/lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:1820: more undefined references to `armv7m_nvic_set_pending' follow target/arm/m_helper.o: In function `arm_v7m_mmu_idx_for_secstate_and_priv': /lhome/priyamvad/debian_qemu_arm32_updated/qemu/target/arm/m_helper.c:2710: undefined reference to `armv7m_nvic_neg_prio_requested' collect2: error: ld returned 1 exit status make[1]: *** [Makefile:206: qemu-system-arm] Error 1 make: *** [Makefile:494: arm-softmmu/all] Error 2
