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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Fri, 3 Aug 2018 15:07:23 -0400
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Subject: [PATCH] strip "-R .note.gnu.property" at more places.
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For whatever reason, sometimes I see:
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lzma_decompress.image: file format elf32-i386
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lzma_decompress.image
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architecture: i386, flags 0x00000012:
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EXEC_P, HAS_SYMS
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start address 0x00008200
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Program Header:
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LOAD off 0x000000c0 vaddr 0x00008200 paddr 0x00008200 align 2**5
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filesz 0x00000b10 memsz 0x00000b10 flags rwx
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LOAD off 0x00000bd0 vaddr 0x080480b4 paddr 0x080480b4 align 2**2
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filesz 0x0000001c memsz 0x0000001c flags r--
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NOTE off 0x00000bd0 vaddr 0x080480b4 paddr 0x080480b4 align 2**2
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filesz 0x0000001c memsz 0x0000001c flags r--
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STACK off 0x00000000 vaddr 0x00000000 paddr 0x00000000 align 2**4
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filesz 0x00000000 memsz 0x00000000 flags rw-
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Sections:
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Idx Name Size VMA LMA File off Algn
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0 .note.gnu.property 0000001c 080480b4 080480b4 00000bd0 2**2
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CONTENTS, ALLOC, LOAD, READONLY, DATA
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1 .text 00000b10 00008200 00008200 000000c0 2**5
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CONTENTS, ALLOC, LOAD, CODE
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SYMBOL TABLE:
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080480b4 l d .note.gnu.property 00000000 .note.gnu.property
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00008200 l d .text 00000000 .text
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00000000 l df *ABS* 00000000 startup_raw.S
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...
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Which just looks wrong no matter what to my eyes (seriously it's at
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128M? Why?), and when we fail to strip it, we get:
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trillian:~/tmp/f29$ hexdump -C usr/lib/grub/i386-pc/lzma_decompress.img | tail -6
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00000b00 ff 45 e8 5a 83 c2 02 89 d1 e9 df fe ff ff 66 90 |.E.Z..........f.|
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00000b10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 |................|
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*
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0803feb0 00 00 00 00 04 00 00 00 0c 00 00 00 05 00 00 00 |................|
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0803fec0 47 4e 55 00 02 00 00 c0 04 00 00 00 03 00 00 00 |GNU.............|
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0803fed0
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Which is very very much not what we want.
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Cut it out.
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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Makefile.am | 2 +-
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gentpl.py | 2 +-
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2 files changed, 2 insertions(+), 2 deletions(-)
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diff --git a/Makefile.am b/Makefile.am
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index c7b0e6a9c..287fff66b 100644
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--- a/Makefile.am
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+++ b/Makefile.am
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@@ -209,7 +209,7 @@ pc-chainloader.elf: $(srcdir)/grub-core/tests/boot/kernel-8086.S $(srcdir)/grub-
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$(TARGET_CC) -o $@ $< -static -DTARGET_CHAINLOADER=1 -DSUCCESSFUL_BOOT_STRING=\"$(SUCCESSFUL_BOOT_STRING)\" -ffreestanding -nostdlib -nostdinc -Wl,--build-id=none -Wl,-N -Wl,-Ttext,0x7c00 -m32
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pc-chainloader.bin: pc-chainloader.elf
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- $(TARGET_OBJCOPY) -O binary --strip-unneeded -R .note -R .comment -R .note.gnu.build-id -R .reginfo -R .rel.dyn -R .note.gnu.gold-version $< $@;
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+ $(TARGET_OBJCOPY) -O binary --strip-unneeded -R .note -R .comment -R .note.gnu.build-id -R .reginfo -R .rel.dyn -R .note.gnu.gold-version -R .note.gnu.property $< $@;
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ntldr.elf: $(srcdir)/grub-core/tests/boot/kernel-8086.S $(srcdir)/grub-core/tests/boot/qemu-shutdown-x86.S
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$(TARGET_CC) -o $@ $< -DTARGET_NTLDR=1 -DSUCCESSFUL_BOOT_STRING=\"$(SUCCESSFUL_BOOT_STRING)\" -static -ffreestanding -nostdlib -nostdinc -Wl,--build-id=none -Wl,-N -Wl,-Ttext,0 -m32
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diff --git a/gentpl.py b/gentpl.py
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index 1e4635f44..d662c305f 100644
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--- a/gentpl.py
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+++ b/gentpl.py
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@@ -776,7 +776,7 @@ def image(defn, platform):
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if test x$(TARGET_APPLE_LINKER) = x1; then \
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$(MACHO2IMG) $< $@; \
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else \
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- $(TARGET_OBJCOPY) $(""" + cname(defn) + """_OBJCOPYFLAGS) --strip-unneeded -R .note -R .comment -R .note.gnu.build-id -R .MIPS.abiflags -R .reginfo -R .rel.dyn -R .note.gnu.gold-version -R .ARM.exidx $< $@; \
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+ $(TARGET_OBJCOPY) $(""" + cname(defn) + """_OBJCOPYFLAGS) --strip-unneeded -R .note -R .comment -R .note.gnu.build-id -R .MIPS.abiflags -R .reginfo -R .rel.dyn -R .note.gnu.gold-version -R .ARM.exidx -R .note.gnu.property $< $@; \
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fi
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""")
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