[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xen master] x86: add support for crash dump analysis with xen.efi
commit f514bab30ef8d4ade77a27c926e283c9bbbf9ffd Author: Juergen Gross <jgross@xxxxxxxx> AuthorDate: Tue Apr 25 12:18:37 2023 +0200 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Tue Apr 25 12:18:37 2023 +0200 x86: add support for crash dump analysis with xen.efi Today it is not possible to analyse crash dumps of a system in hypervisor mode when it had been booted via EFI, as the crash utility doesn't understand the file format of xen.efi. This can easily be solved by creating an ELF file from xen.efi via objcopy. Using that file as name list for crash enables the user to analyse the dump in hypervisor mode. Note that crash isn't happy with a file containing no text and data, so using --only-keep-debug is not an option. Signed-off-by: Juergen Gross <jgross@xxxxxxxx> Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx> --- xen/Makefile | 11 +++++++---- xen/arch/x86/Makefile | 3 +++ 2 files changed, 10 insertions(+), 4 deletions(-) diff --git a/xen/Makefile b/xen/Makefile index 2710d7327e..5166403cff 100644 --- a/xen/Makefile +++ b/xen/Makefile @@ -502,9 +502,11 @@ _install: $(TARGET)$(CONFIG_XEN_INSTALL_SUFFIX) if [ -r $(TARGET).efi -a -n '$(EFI_DIR)' ]; then \ [ -d $(D)$(EFI_DIR) ] || $(INSTALL_DIR) $(D)$(EFI_DIR); \ $(INSTALL_DATA) $(TARGET).efi $(D)$(EFI_DIR)/$(T)-$(XEN_FULLVERSION).efi; \ - if [ -e $(TARGET).efi.map ]; then \ - $(INSTALL_DATA) $(TARGET).efi.map $(D)$(DEBUG_DIR)/$(T)-$(XEN_FULLVERSION).efi.map; \ - fi; \ + for x in map elf; do \ + if [ -e $(TARGET).efi.$$x ]; then \ + $(INSTALL_DATA) $(TARGET).efi.$$x $(D)$(DEBUG_DIR)/$(T)-$(XEN_FULLVERSION).efi.$$x; \ + fi; \ + done; \ ln -sf $(T)-$(XEN_FULLVERSION).efi $(D)$(EFI_DIR)/$(T)-$(XEN_VERSION).$(XEN_SUBVERSION).efi; \ ln -sf $(T)-$(XEN_FULLVERSION).efi $(D)$(EFI_DIR)/$(T)-$(XEN_VERSION).efi; \ ln -sf $(T)-$(XEN_FULLVERSION).efi $(D)$(EFI_DIR)/$(T).efi; \ @@ -539,6 +541,7 @@ _uninstall: rm -f $(D)$(DEBUG_DIR)/$(T)-syms-$(XEN_FULLVERSION).map rm -f $(D)$(EFI_DIR)/$(T)-$(XEN_FULLVERSION).efi rm -f $(D)$(EFI_DIR)/$(T)-$(XEN_VERSION).$(XEN_SUBVERSION).efi + rm -f $(D)$(DEBUG_DIR)/$(T)-$(XEN_FULLVERSION).efi.elf rm -f $(D)$(DEBUG_DIR)/$(T)-$(XEN_FULLVERSION).efi.map rm -f $(D)$(EFI_DIR)/$(T)-$(XEN_VERSION).efi rm -f $(D)$(EFI_DIR)/$(T).efi @@ -569,7 +572,7 @@ _clean: -o -name '*.lex.c' -o -name '*.tab.[ch]' -o -name "*.gcno" \ -o -name ".*.cmd" -o -name "lib.a" \) -exec rm -f {} \; rm -f include/asm $(TARGET) $(TARGET).gz $(TARGET)-syms $(TARGET)-syms.map - rm -f $(TARGET).efi $(TARGET).efi.map $(TARGET).efi.stripped + rm -f $(TARGET).efi $(TARGET).efi.map $(TARGET).efi.elf $(TARGET).efi.stripped rm -f asm-offsets.s arch/*/include/asm/asm-offsets.h rm -f .banner .allconfig.tmp include/xen/compile.h diff --git a/xen/arch/x86/Makefile b/xen/arch/x86/Makefile index fc9487aa40..2672d7f4ee 100644 --- a/xen/arch/x86/Makefile +++ b/xen/arch/x86/Makefile @@ -226,6 +226,9 @@ endif $(@D)/.$(@F).1r.o $(@D)/.$(@F).1s.o $(orphan-handling-y) $(note_file_option) -o $@ $(NM) -pa --format=sysv $(@D)/$(@F) \ | $(objtree)/tools/symbols --all-symbols --xensyms --sysv --sort >$(@D)/$(@F).map +ifeq ($(CONFIG_DEBUG_INFO),y) + $(if $(filter --strip-debug,$(EFI_LDFLAGS)),:$(space))$(OBJCOPY) -O elf64-x86-64 $@ $@.elf +endif rm -f $(@D)/.$(@F).[0-9]* $(@D)/..$(@F).[0-9]* ifeq ($(CONFIG_XEN_IBT),y) $(SHELL) $(srctree)/tools/check-endbr.sh $@ -- generated by git-patchbot for /home/xen/git/xen.git#master
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