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author | Patrick Williams <patrick@stwcx.xyz> | 2016-08-17 14:31:25 -0500 |
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committer | Patrick Williams <patrick@stwcx.xyz> | 2016-08-22 16:43:26 +0000 |
commit | 60f9d69e016b11c468c98ea75ba0a60c44afbbc4 (patch) | |
tree | ecb49581a9e41a37943c22cd9ef3f63451b20ee7 /import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/cpus.c-qemu_cpu_kick_thread_debugging.patch | |
parent | e18c61205e0234b03697129c20cc69c9b3940efc (diff) | |
download | blackbird-openbmc-60f9d69e016b11c468c98ea75ba0a60c44afbbc4.tar.gz blackbird-openbmc-60f9d69e016b11c468c98ea75ba0a60c44afbbc4.zip |
yocto-poky: Move to import-layers subdir
We are going to import additional layers, so create a subdir to
hold all of the layers that we import with git-subtree.
Change-Id: I6f732153a22be8ca663035c518837e3cc5ec0799
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Diffstat (limited to 'import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/cpus.c-qemu_cpu_kick_thread_debugging.patch')
-rw-r--r-- | import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/cpus.c-qemu_cpu_kick_thread_debugging.patch | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/cpus.c-qemu_cpu_kick_thread_debugging.patch b/import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/cpus.c-qemu_cpu_kick_thread_debugging.patch new file mode 100644 index 000000000..682213254 --- /dev/null +++ b/import-layers/yocto-poky/meta/recipes-devtools/qemu/qemu/cpus.c-qemu_cpu_kick_thread_debugging.patch @@ -0,0 +1,76 @@ +From 697a834c35d19447b7dcdb9e1d9434bc6ce17c21 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?An=C3=ADbal=20Lim=C3=B3n?= <anibal.limon@linux.intel.com> +Date: Wed, 12 Aug 2015 15:11:30 -0500 +Subject: [PATCH] cpus.c: Add error messages when qemi_cpu_kick_thread fails. +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Add custom_debug.h with function for print backtrace information. +When pthread_kill fails in qemu_cpu_kick_thread display backtrace and +current cpu information. + +Upstream-Status: Inappropriate +Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com> +--- + cpus.c | 5 +++++ + custom_debug.h | 24 ++++++++++++++++++++++++ + 2 files changed, 29 insertions(+) + create mode 100644 custom_debug.h + +diff --git a/cpus.c b/cpus.c +index a822ce3..7e4786e 100644 +--- a/cpus.c ++++ b/cpus.c +@@ -1080,6 +1080,8 @@ static void *qemu_tcg_cpu_thread_fn(void *arg) + return NULL; + } + ++#include "custom_debug.h" ++ + static void qemu_cpu_kick_thread(CPUState *cpu) + { + #ifndef _WIN32 +@@ -1088,6 +1090,9 @@ static void qemu_cpu_kick_thread(CPUState *cpu) + err = pthread_kill(cpu->thread->thread, SIG_IPI); + if (err) { + fprintf(stderr, "qemu:%s: %s", __func__, strerror(err)); ++ fprintf(stderr, "CPU #%d:\n", cpu->cpu_index); ++ cpu_dump_state(cpu, stderr, fprintf, 0); ++ backtrace_print(); + exit(1); + } + #else /* _WIN32 */ +diff --git a/custom_debug.h b/custom_debug.h +new file mode 100644 +index 0000000..f029e45 +--- /dev/null ++++ b/custom_debug.h +@@ -0,0 +1,24 @@ ++#include <execinfo.h> ++#include <stdio.h> ++#define BACKTRACE_MAX 128 ++static void backtrace_print(void) ++{ ++ int nfuncs = 0; ++ void *buf[BACKTRACE_MAX]; ++ char **symbols; ++ int i; ++ ++ nfuncs = backtrace(buf, BACKTRACE_MAX); ++ ++ symbols = backtrace_symbols(buf, nfuncs); ++ if (symbols == NULL) { ++ fprintf(stderr, "backtrace_print failed to get symbols"); ++ return; ++ } ++ ++ fprintf(stderr, "Backtrace ...\n"); ++ for (i = 0; i < nfuncs; i++) ++ fprintf(stderr, "%s\n", symbols[i]); ++ ++ free(symbols); ++} +-- +1.9.1 + |