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From: "tomas.vanek at fbl dot cz" <sourceware-bugzilla@sourceware.org> To: gdb-prs@sourceware.org Subject: [Bug gdb/28549] ARM/Cortex-M: improper stack unwinding when the target is in lockup state Date: Mon, 13 Dec 2021 09:55:25 +0000 [thread overview] Message-ID: <bug-28549-4717-kndynug3Bn@http.sourceware.org/bugzilla/> (raw) In-Reply-To: <bug-28549-4717@http.sourceware.org/bugzilla/> https://sourceware.org/bugzilla/show_bug.cgi?id=28549 --- Comment #16 from tomas.vanek at fbl dot cz --- Luis, TBH I didn't care about elegance ;) The prevention of bogus unwinding is much more important. Look at test results. Just before real lockup: Breakpoint 1, DoubleFaultGenerator () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/stm32l5xx_it.c: 72 72 double_fault_dest= *double_fault_unreadable_src; (gdb) backtrace #0 DoubleFaultGenerator () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/stm32l5xx_it.c:72 #1 0x0c000a50 in HardFault_Handler () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/stm32l5xx_it.c:99 #2 <signal handler called> #3 0x0c000876 in HardFaultGenerator () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/main.c:406 #4 0x0c0008c0 in HAL_SYSTICK_Callback () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/main.c:427 #5 0x0c000b1e in SysTick_Handler () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/stm32l5xx_it.c:234 #6 <signal handler called> #7 HAL_GPIO_ReadPin (GPIOx=0x0, GPIO_Pin=0) at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Drivers/STM32L5xx_HAL_Driver/Src/stm32l5xx_hal_gpio.c:371 #8 0x0c0004ec in main () at C:/dvl/stm32l5trustzone/GPIO_IOToggle_TrustZone/Secure/Src/main.c:165 Locked-up, gdb with Fredrik's alternative patch: (gdb) c Continuing. stm32l5x.cpu -- clearing lockup after double fault Program received signal SIGINT, Interrupt. <signal handler called> (gdb) backtrace #0 <signal handler called> #1 0x4fff0000 in ?? () #2 0x30000048 in pSecureErrorCallback () Backtrace stopped: previous frame identical to this frame (corrupt stack?) As expected, backtrace got completely lost. -- You are receiving this mail because: You are on the CC list for the bug.
next prev parent reply other threads:[~2021-12-13 9:55 UTC|newest] Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-05 9:51 [Bug gdb/28549] New: " tarek.bouchkati at gmail dot com 2021-11-05 10:34 ` [Bug gdb/28549] " tarek.bouchkati at gmail dot com 2021-11-05 10:59 ` tarek.bouchkati at gmail dot com 2021-11-05 12:26 ` tarek.bouchkati at gmail dot com 2021-11-05 12:36 ` tarek.bouchkati at gmail dot com 2021-11-05 13:16 ` alahay01 at gcc dot gnu.org 2021-11-05 13:22 ` luis.machado at linaro dot org 2021-11-05 14:02 ` luis.machado at linaro dot org 2021-11-05 14:02 ` luis.machado at linaro dot org 2021-11-05 15:43 ` fredrik.hederstierna@securitas-direct.com 2021-11-05 15:51 ` tarek.bouchkati at gmail dot com 2021-11-05 23:14 ` fredrik.hederstierna@securitas-direct.com 2021-11-05 23:25 ` fredrik.hederstierna@securitas-direct.com 2021-11-06 0:20 ` fredrik.hederstierna@securitas-direct.com 2021-11-15 12:04 ` tarek.bouchkati at gmail dot com 2021-11-15 12:52 ` luis.machado at linaro dot org 2021-11-15 13:15 ` tarek.bouchkati at gmail dot com 2021-11-15 18:09 ` fredrik.hederstierna@securitas-direct.com 2021-11-15 18:46 ` luis.machado at linaro dot org 2021-11-18 11:18 ` tarek.bouchkati at gmail dot com 2021-12-10 12:30 ` tomas.vanek at fbl dot cz 2021-12-13 8:30 ` luis.machado at linaro dot org 2021-12-13 9:55 ` tomas.vanek at fbl dot cz [this message] 2021-12-13 10:07 ` clyon at gcc dot gnu.org 2021-12-13 10:35 ` luis.machado at linaro dot org 2021-12-13 10:37 ` luis.machado at linaro dot org 2021-12-13 20:22 ` tomas.vanek at fbl dot cz 2021-12-13 21:48 ` fredrik.hederstierna@securitas-direct.com 2021-12-13 22:00 ` fredrik.hederstierna@securitas-direct.com 2021-12-14 0:09 ` tomas.vanek at fbl dot cz 2021-12-14 0:33 ` tomas.vanek at fbl dot cz 2021-12-14 10:27 ` tomas.vanek at fbl dot cz 2021-12-14 14:42 ` tomas.vanek at fbl dot cz 2021-12-14 14:45 ` tomas.vanek at fbl dot cz 2021-12-14 14:50 ` tomas.vanek at fbl dot cz 2021-12-15 16:44 ` luis.machado at linaro dot org 2021-12-15 16:56 ` fredrik.hederstierna@securitas-direct.com 2021-12-15 17:42 ` tomas.vanek at fbl dot cz 2022-01-19 11:34 ` tarek.bouchkati at gmail dot com 2022-01-19 11:35 ` luis.machado at linaro dot org 2022-01-19 11:36 ` luis.machado at linaro dot org 2022-01-19 11:40 ` clyon at gcc dot gnu.org 2022-01-19 12:18 ` tarekbouchkati at gmail dot com 2022-09-09 8:25 ` luis.machado at arm dot com 2022-09-09 23:35 ` fredrik.hederstierna@securitas-direct.com 2022-09-10 7:27 ` luis.machado at arm dot com 2022-09-11 13:59 ` tomas.vanek at fbl dot cz 2022-09-12 9:32 ` luis.machado at arm dot com 2022-09-14 9:07 ` tomas.vanek at fbl dot cz 2022-09-14 12:10 ` luis.machado at arm dot com 2022-10-02 7:13 ` torbjorn.svensson at st dot com 2022-10-02 7:18 ` tomas.vanek at fbl dot cz 2022-10-06 13:07 ` luis.machado at arm dot com 2022-10-11 8:08 ` torbjorn.svensson at st dot com 2022-10-14 14:07 ` torbjorn.svensson at st dot com 2022-10-16 12:24 ` tomas.vanek at fbl dot cz 2022-10-21 10:01 ` luis.machado at arm dot com 2022-10-29 18:40 ` brobecker at gnat dot com 2022-10-31 10:18 ` luis.machado at arm dot com
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