The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x d83806c4c0cccc0d6d3c3581a11983a9c186a138 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023041751-pod-deafness-ec04@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..
Possible dependencies:
d83806c4c0cc ("purgatory: fix disabling debug info") 56e0790c7f9e ("RISC-V: add infrastructure to allow different str* implementations") 736e30af583f ("RISC-V: Add purgatory") 6261586e0c91 ("RISC-V: Add kexec_file support") 8212f8986d31 ("kbuild: use more subdir- for visiting subdirectories while cleaning") 10c6ae274fe2 ("sh: remove meaningless archclean line") b79bd0d5102b ("Merge tag 'riscv-for-linus-5.15-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From d83806c4c0cccc0d6d3c3581a11983a9c186a138 Mon Sep 17 00:00:00 2001 From: Alyssa Ross hi@alyssa.is Date: Sun, 26 Mar 2023 18:21:21 +0000 Subject: [PATCH] purgatory: fix disabling debug info
Since 32ef9e5054ec, -Wa,-gdwarf-2 is no longer used in KBUILD_AFLAGS. Instead, it includes -g, the appropriate -gdwarf-* flag, and also the -Wa versions of both of those if building with Clang and GNU as. As a result, debug info was being generated for the purgatory objects, even though the intention was that it not be.
Fixes: 32ef9e5054ec ("Makefile.debug: re-enable debug info for .S files") Signed-off-by: Alyssa Ross hi@alyssa.is Cc: stable@vger.kernel.org Acked-by: Nick Desaulniers ndesaulniers@google.com Signed-off-by: Masahiro Yamada masahiroy@kernel.org
diff --git a/arch/riscv/purgatory/Makefile b/arch/riscv/purgatory/Makefile index d16bf715a586..5730797a6b40 100644 --- a/arch/riscv/purgatory/Makefile +++ b/arch/riscv/purgatory/Makefile @@ -84,12 +84,7 @@ CFLAGS_string.o += $(PURGATORY_CFLAGS) CFLAGS_REMOVE_ctype.o += $(PURGATORY_CFLAGS_REMOVE) CFLAGS_ctype.o += $(PURGATORY_CFLAGS)
-AFLAGS_REMOVE_entry.o += -Wa,-gdwarf-2 -AFLAGS_REMOVE_memcpy.o += -Wa,-gdwarf-2 -AFLAGS_REMOVE_memset.o += -Wa,-gdwarf-2 -AFLAGS_REMOVE_strcmp.o += -Wa,-gdwarf-2 -AFLAGS_REMOVE_strlen.o += -Wa,-gdwarf-2 -AFLAGS_REMOVE_strncmp.o += -Wa,-gdwarf-2 +asflags-remove-y += $(foreach x, -g -gdwarf-4 -gdwarf-5, $(x) -Wa,$(x))
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE $(call if_changed,ld) diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile index 17f09dc26381..82fec66d46d2 100644 --- a/arch/x86/purgatory/Makefile +++ b/arch/x86/purgatory/Makefile @@ -69,8 +69,7 @@ CFLAGS_sha256.o += $(PURGATORY_CFLAGS) CFLAGS_REMOVE_string.o += $(PURGATORY_CFLAGS_REMOVE) CFLAGS_string.o += $(PURGATORY_CFLAGS)
-AFLAGS_REMOVE_setup-x86_$(BITS).o += -Wa,-gdwarf-2 -AFLAGS_REMOVE_entry64.o += -Wa,-gdwarf-2 +asflags-remove-y += $(foreach x, -g -gdwarf-4 -gdwarf-5, $(x) -Wa,$(x))
$(obj)/purgatory.ro: $(PURGATORY_OBJS) FORCE $(call if_changed,ld)