diff options
| author | Ard Biesheuvel <ardb@kernel.org> | 2023-09-15 17:16:28 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2023-09-17 19:48:42 +0200 |
| commit | aeb92067f6ae994b541d7f9752fe54ed3d108bcc (patch) | |
| tree | 9686e3eb1e5406df36e43aa5b6b5776978681976 /arch/x86/boot/Makefile | |
| parent | 093ab258e3fb1d1d3afdfd4a69403d44ce90e360 (diff) | |
x86/boot: Derive file size from _edata symbol
Tweak the linker script so that the value of _edata represents the
decompressor binary's file size rounded up to the appropriate alignment.
This removes the need to calculate it in the build tool, and will make
it easier to refer to the file size from the header directly in
subsequent changes to the PE header layout.
While adding _edata to the sed regex that parses the compressed
vmlinux's symbol list, tweak the regex a bit for conciseness.
This change has no impact on the resulting bzImage binary when
configured with CONFIG_EFI_STUB=y.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230915171623.655440-14-ardb@google.com
Diffstat (limited to 'arch/x86/boot/Makefile')
| -rw-r--r-- | arch/x86/boot/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 0e98bc503699..cc04917b1ac6 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -89,7 +89,7 @@ $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) -sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|efi32_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p' +sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|efi.._stub_entry\|efi\(32\)\?_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|_edata\|z_.*\)$$/\#define ZO_\2 0x\1/p' quiet_cmd_zoffset = ZOFFSET $@ cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ |