From: Nadav Amit <nadav.amit@gmail.com>
To: Andrew Jones <andrew.jones@linux.dev>
Cc: kvmarm@lists.linux.dev, kvmarm@lists.cs.columbia.edu,
kvm@vger.kernel.org, Nikos Nikoleris <nikos.nikoleris@arm.com>,
Nadav Amit <namit@vmware.com>
Subject: [kvm-unit-tests PATCH 1/6] arm: keep efi debug information in a separate file
Date: Sat, 17 Jun 2023 01:49:25 +0000 [thread overview]
Message-ID: <20230617014930.2070-2-namit@vmware.com> (raw)
In-Reply-To: <20230617014930.2070-1-namit@vmware.com>
From: Nadav Amit <namit@vmware.com>
Debugging tests that run on EFI is hard because the debug information is
not included in the EFI file. Dump it into a separeate .debug file to
allow the use of gdb or pretty_print_stacks script.
Signed-off-by: Nadav Amit <namit@vmware.com>
---
arm/Makefile.common | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/arm/Makefile.common b/arm/Makefile.common
index d60cf8c..f904702 100644
--- a/arm/Makefile.common
+++ b/arm/Makefile.common
@@ -69,7 +69,7 @@ FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libeabi)
ifeq ($(CONFIG_EFI),y)
%.so: EFI_LDFLAGS += -defsym=EFI_SUBSYSTEM=0xa --no-undefined
%.so: %.o $(FLATLIBS) $(SRCDIR)/arm/efi/elf_aarch64_efi.lds $(cstart.o)
- $(CC) $(CFLAGS) -c -o $(@:.so=.aux.o) $(SRCDIR)/lib/auxinfo.c \
+ $(CC) $(CFLAGS) -c -g -o $(@:.so=.aux.o) $(SRCDIR)/lib/auxinfo.c \
-DPROGNAME=\"$(@:.so=.efi)\" -DAUXFLAGS=$(AUXFLAGS)
$(LD) $(EFI_LDFLAGS) -o $@ -T $(SRCDIR)/arm/efi/elf_aarch64_efi.lds \
$(filter %.o, $^) $(FLATLIBS) $(@:.so=.aux.o) \
@@ -78,6 +78,9 @@ ifeq ($(CONFIG_EFI),y)
%.efi: %.so
$(call arch_elf_check, $^)
+ $(OBJCOPY) --only-keep-debug $^ $@.debug
+ $(OBJCOPY) --strip-debug $^
+ $(OBJCOPY) --add-gnu-debuglink=$@.debug $^
$(OBJCOPY) \
-j .text -j .sdata -j .data -j .dynamic -j .dynsym \
-j .rel -j .rela -j .rel.* -j .rela.* -j .rel* -j .rela* \
--
2.34.1
next prev parent reply other threads:[~2023-06-17 1:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-17 1:49 [kvm-unit-tests PATCH 0/6] arm64: improve debuggability Nadav Amit
2023-06-17 1:49 ` Nadav Amit [this message]
2023-06-24 10:12 ` [kvm-unit-tests PATCH 1/6] arm: keep efi debug information in a separate file Andrew Jones
2023-06-24 10:31 ` Andrew Jones
2023-06-25 19:21 ` Nadav Amit
2023-06-17 1:49 ` [kvm-unit-tests PATCH 2/6] lib/stack: print base addresses on efi Nadav Amit
2023-06-24 10:13 ` Andrew Jones
2023-06-25 19:23 ` Nadav Amit
2023-06-17 1:49 ` [kvm-unit-tests PATCH 3/6] arm64: enable frame pointer and support stack unwinding Nadav Amit
2023-06-24 10:13 ` Andrew Jones
2023-06-25 19:22 ` Nadav Amit
2023-06-26 5:42 ` Andrew Jones
2023-06-17 1:49 ` [kvm-unit-tests PATCH 4/6] arm64: stack: update trace stack on exception Nadav Amit
2023-06-24 10:18 ` Andrew Jones
2023-06-17 1:49 ` [kvm-unit-tests PATCH 5/6] efi: Print address of image Nadav Amit
2023-06-17 1:49 ` [kvm-unit-tests PATCH 6/6] arm64: dump stack on bad exception Nadav Amit
2023-06-17 1:52 ` Nadav Amit
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