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Tue, 30 Jun 2020 10:26:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ashroe.eu; s=x; h=Content-Transfer-Encoding:Content-Type:In-Reply-To:MIME-Version:Date: Message-ID:From:References:Cc:To:Subject:Sender:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=0T8q7wOvaC7ztjwOPamEo5Xvg8N8Toe9xuKe7nGIx4o=; b=kQ8G6R6dYnfY0FWjLHz9r86xXr kirZP3f0V00Ec74yk8nyp0LdwECRwDcB0ypJbb+aOsLf+MsxfUXppRzIqrchgEKE/0E/+NtLRKWgm 6p0i9P3I2Ceh+Cbustl10e/Wu0PjDZzdZ2x4+0OpUQ0ozhRIA/Yqo58nWen4DoPDFlWGr06SD2lRr ZROVBCjtV33bUtjwx8/a0fGl78ooM/+uCGpz6E29uwdBDD/JK2ly6MJ/dY6LgWIUSxWqQddKtdVuv CEWZp2+U16bZzGrwdKUQsbNNGqzhBr9Gs109jEQDTkybQ5p0lg5BlkcBasgfiXeK8r+ND4+Nrhcmb J8abhSeA==; To: Thomas Monjalon , dev@dpdk.org Cc: david.marchand@redhat.com, bruce.richardson@intel.com, John McNamara , Marko Kovacevic , Neil Horman References: <20200624093627.2603992-1-thomas@monjalon.net> From: "Kinsella, Ray" Autocrypt: addr=mdr@ashroe.eu; 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WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <20200624093627.2603992-1-thomas@monjalon.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-AuthUser: mdr@ashroe.eu Subject: Re: [dpdk-dev] [PATCH 20.11] eal: simplify exit functions X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On 24/06/2020 10:36, Thomas Monjalon wrote: > The option RTE_EAL_ALWAYS_PANIC_ON_ERROR was off by default, > and not customizable with meson. It is completely removed. > > The function rte_dump_registers is a trace of the bare metal support > era, and was not supported in userland. It is completely removed. > > Signed-off-by: Thomas Monjalon > --- > Because the empty function rte_dump_registers is part of the ABI, > this change is planned for DPDK 20.11. > --- > app/test/test_debug.c | 3 --- > config/common_base | 1 - > doc/guides/howto/debug_troubleshoot.rst | 2 +- > lib/librte_eal/common/eal_common_debug.c | 17 +---------------- > lib/librte_eal/include/rte_debug.h | 7 ------- > lib/librte_eal/rte_eal_version.map | 1 - > 6 files changed, 2 insertions(+), 29 deletions(-) > > diff --git a/app/test/test_debug.c b/app/test/test_debug.c > index 25eab97e2a..834a7386f5 100644 > --- a/app/test/test_debug.c > +++ b/app/test/test_debug.c > @@ -66,13 +66,11 @@ test_exit_val(int exit_val) > } > wait(&status); > printf("Child process status: %d\n", status); > -#ifndef RTE_EAL_ALWAYS_PANIC_ON_ERROR > if(!WIFEXITED(status) || WEXITSTATUS(status) != (uint8_t)exit_val){ > printf("Child process terminated with incorrect status (expected = %d)!\n", > exit_val); > return -1; > } > -#endif > return 0; > } > > @@ -113,7 +111,6 @@ static int > test_debug(void) > { > rte_dump_stack(); > - rte_dump_registers(); > if (test_panic() < 0) > return -1; > if (test_exit() < 0) > diff --git a/config/common_base b/config/common_base > index c7d5c73215..42ad399b17 100644 > --- a/config/common_base > +++ b/config/common_base > @@ -103,7 +103,6 @@ CONFIG_RTE_ENABLE_TRACE_FP=n > CONFIG_RTE_LOG_HISTORY=256 > CONFIG_RTE_BACKTRACE=y > CONFIG_RTE_LIBEAL_USE_HPET=n > -CONFIG_RTE_EAL_ALWAYS_PANIC_ON_ERROR=n > CONFIG_RTE_EAL_IGB_UIO=n > CONFIG_RTE_EAL_VFIO=n > CONFIG_RTE_MAX_VFIO_GROUPS=64 > diff --git a/doc/guides/howto/debug_troubleshoot.rst b/doc/guides/howto/debug_troubleshoot.rst > index cef016b2fe..1ed8be5a04 100644 > --- a/doc/guides/howto/debug_troubleshoot.rst > +++ b/doc/guides/howto/debug_troubleshoot.rst > @@ -313,7 +313,7 @@ Custom worker function :numref:`dtg_distributor_worker`. > * For high-performance execution logic ensure running it on correct NUMA > and non-master core. > > - * Analyze run logic with ``rte_dump_stack``, ``rte_dump_registers`` and > + * Analyze run logic with ``rte_dump_stack`` and > ``rte_memdump`` for more insights. > > * Make use of objdump to ensure opcode is matching to the desired state. > diff --git a/lib/librte_eal/common/eal_common_debug.c b/lib/librte_eal/common/eal_common_debug.c > index 722468754d..15418e957f 100644 > --- a/lib/librte_eal/common/eal_common_debug.c > +++ b/lib/librte_eal/common/eal_common_debug.c > @@ -7,14 +7,6 @@ > #include > #include > > -/* not implemented */ > -void > -rte_dump_registers(void) > -{ > - return; > -} > - > -/* call abort(), it will generate a coredump if enabled */ > void > __rte_panic(const char *funcname, const char *format, ...) > { > @@ -25,8 +17,7 @@ __rte_panic(const char *funcname, const char *format, ...) > rte_vlog(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, format, ap); > va_end(ap); > rte_dump_stack(); > - rte_dump_registers(); > - abort(); > + abort(); /* generate a coredump if enabled */ > } > > /* > @@ -46,14 +37,8 @@ rte_exit(int exit_code, const char *format, ...) > rte_vlog(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, format, ap); > va_end(ap); > > -#ifndef RTE_EAL_ALWAYS_PANIC_ON_ERROR > if (rte_eal_cleanup() != 0) > RTE_LOG(CRIT, EAL, > "EAL could not release all resources\n"); > exit(exit_code); > -#else > - rte_dump_stack(); > - rte_dump_registers(); > - abort(); > -#endif > } > diff --git a/lib/librte_eal/include/rte_debug.h b/lib/librte_eal/include/rte_debug.h > index 50052c5a90..c4bc71ce28 100644 > --- a/lib/librte_eal/include/rte_debug.h > +++ b/lib/librte_eal/include/rte_debug.h > @@ -26,13 +26,6 @@ extern "C" { > */ > void rte_dump_stack(void); > > -/** > - * Dump the registers of the calling core to the console. > - * > - * Note: Not implemented in a userapp environment; use gdb instead. > - */ > -void rte_dump_registers(void); > - > /** > * Provide notification of a critical non-recoverable error and terminate > * execution abnormally. > diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map > index 196eef5afa..3f36e46b3b 100644 > --- a/lib/librte_eal/rte_eal_version.map > +++ b/lib/librte_eal/rte_eal_version.map > @@ -37,7 +37,6 @@ DPDK_20.0 { > rte_devargs_remove; > rte_devargs_type_count; > rte_dump_physmem_layout; > - rte_dump_registers; > rte_dump_stack; > rte_dump_tailq; > rte_eal_alarm_cancel; > Acked-by: Ray Kinsella