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| author |   Alexander Egorenkov <egorenar@linux.ibm.com> | 2020-09-02 16:52:06 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2020-09-16 14:08:47 +0200 |
| commit | 980d5f9ab36b6cfe473a8371a7e11bd168c9e630 (patch) | |
| tree | 21dd7162377841d3068d014d931ab511dd6f0430 /arch/s390/boot/compressed | |
| parent | s390/uv: add destroy page call (diff) | |
| download | linux-dev-980d5f9ab36b6cfe473a8371a7e11bd168c9e630.tar.xz linux-dev-980d5f9ab36b6cfe473a8371a7e11bd168c9e630.zip | |
s390/boot: enable .bss section for compressed kernel
- Support static uninitialized variables in compressed kernel.
- Remove chkbss script
- Get rid of workarounds for not having .bss section
Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot/compressed')
| -rw-r--r-- | arch/s390/boot/compressed/Makefile | 4 | ||||
| -rw-r--r-- | arch/s390/boot/compressed/decompressor.c | 1 | ||||
| -rw-r--r-- | arch/s390/boot/compressed/vmlinux.lds.S | 22 |
3 files changed, 13 insertions, 14 deletions
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index fa529c5b4486..b235ed95a3d8 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -62,7 +62,3 @@ $(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE OBJCOPYFLAGS_piggy.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section .data=.vmlinux.bin.compressed $(obj)/piggy.o: $(obj)/vmlinux.bin$(suffix-y) FORCE $(call if_changed,objcopy) - -chkbss := $(filter-out piggy.o info.o, $(obj-y)) -chkbss-target := vmlinux.bin -include $(srctree)/arch/s390/scripts/Makefile.chkbss diff --git a/arch/s390/boot/compressed/decompressor.c b/arch/s390/boot/compressed/decompressor.c index 368fd372c875..3061b11c4d27 100644 --- a/arch/s390/boot/compressed/decompressor.c +++ b/arch/s390/boot/compressed/decompressor.c @@ -16,7 +16,6 @@ * gzip declarations */ #define STATIC static -#define STATIC_RW_DATA static __section(.data) #undef memset #undef memcpy diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S index 44561b2c3712..9427e2cd0c15 100644 --- a/arch/s390/boot/compressed/vmlinux.lds.S +++ b/arch/s390/boot/compressed/vmlinux.lds.S @@ -59,6 +59,19 @@ SECTIONS BOOT_DATA_PRESERVED /* + * This is the BSS section of the decompressor and not of the decompressed Linux kernel. + * It will consume place in the decompressor's image. + */ + . = ALIGN(8); + .bss : { + _bss = . ; + *(.bss) + *(.bss.*) + *(COMMON) + _ebss = .; + } + + /* * uncompressed image info used by the decompressor it should match * struct vmlinux_info. It comes from .vmlinux.info section of * uncompressed vmlinux in a form of info.o @@ -81,15 +94,6 @@ SECTIONS FILL(0xff); . = ALIGN(4096); } - . = ALIGN(256); - .bss : { - _bss = . ; - *(.bss) - *(.bss.*) - *(COMMON) - . = ALIGN(8); /* For convenience during zeroing */ - _ebss = .; - } _end = .; /* Sections to be discarded */ |