| Makefile (597473720f4dc69749542bfcfed4a927a43d935e) | Makefile (29c623d64f0dcd6aa10e0eabd16233e77114090b) |
|---|---|
| 1# SPDX-License-Identifier: GPL-2.0 2# 3# linux/arch/arm/boot/compressed/Makefile 4# 5# create a compressed vmlinuz image from the original vmlinux 6# 7 8OBJS = --- 107 unchanged lines hidden (view full) --- 116CFLAGS_fdt_ro.o := $(nossp_flags) 117CFLAGS_fdt_rw.o := $(nossp_flags) 118CFLAGS_fdt_wip.o := $(nossp_flags) 119 120ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin -I$(obj) 121asflags-y := -DZIMAGE 122 123# Supply kernel BSS size to the decompressor via a linker symbol. | 1# SPDX-License-Identifier: GPL-2.0 2# 3# linux/arch/arm/boot/compressed/Makefile 4# 5# create a compressed vmlinuz image from the original vmlinux 6# 7 8OBJS = --- 107 unchanged lines hidden (view full) --- 116CFLAGS_fdt_ro.o := $(nossp_flags) 117CFLAGS_fdt_rw.o := $(nossp_flags) 118CFLAGS_fdt_wip.o := $(nossp_flags) 119 120ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin -I$(obj) 121asflags-y := -DZIMAGE 122 123# Supply kernel BSS size to the decompressor via a linker symbol. |
| 124KBSS_SZ = $(shell echo $$(($$($(CROSS_COMPILE)nm $(obj)/../../../../vmlinux | \ | 124KBSS_SZ = $(shell echo $$(($$($(NM) $(obj)/../../../../vmlinux | \ |
| 125 sed -n -e 's/^\([^ ]*\) [AB] __bss_start$$/-0x\1/p' \ 126 -e 's/^\([^ ]*\) [AB] __bss_stop$$/+0x\1/p') )) ) 127LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ) 128# Supply ZRELADDR to the decompressor via a linker symbol. 129ifneq ($(CONFIG_AUTO_ZRELADDR),y) 130LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) 131endif 132ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) --- 27 unchanged lines hidden (view full) --- 160# We need to prevent any GOTOFF relocs being used with references 161# to symbols in the .bss section since we cannot relocate them 162# independently from the rest at run time. This can be achieved by 163# ensuring that no private .bss symbols exist, as global symbols 164# always have a GOT entry which is what we need. 165# The .data section is already discarded by the linker script so no need 166# to bother about it here. 167check_for_bad_syms = \ | 125 sed -n -e 's/^\([^ ]*\) [AB] __bss_start$$/-0x\1/p' \ 126 -e 's/^\([^ ]*\) [AB] __bss_stop$$/+0x\1/p') )) ) 127LDFLAGS_vmlinux = --defsym _kernel_bss_size=$(KBSS_SZ) 128# Supply ZRELADDR to the decompressor via a linker symbol. 129ifneq ($(CONFIG_AUTO_ZRELADDR),y) 130LDFLAGS_vmlinux += --defsym zreladdr=$(ZRELADDR) 131endif 132ifeq ($(CONFIG_CPU_ENDIAN_BE8),y) --- 27 unchanged lines hidden (view full) --- 160# We need to prevent any GOTOFF relocs being used with references 161# to symbols in the .bss section since we cannot relocate them 162# independently from the rest at run time. This can be achieved by 163# ensuring that no private .bss symbols exist, as global symbols 164# always have a GOT entry which is what we need. 165# The .data section is already discarded by the linker script so no need 166# to bother about it here. 167check_for_bad_syms = \ |
| 168bad_syms=$$($(CROSS_COMPILE)nm $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ | 168bad_syms=$$($(NM) $@ | sed -n 's/^.\{8\} [bc] \(.*\)/\1/p') && \ |
| 169[ -z "$$bad_syms" ] || \ 170 ( echo "following symbols must have non local/private scope:" >&2; \ 171 echo "$$bad_syms" >&2; false ) 172 173check_for_multiple_zreladdr = \ 174if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \ 175 echo 'multiple zreladdrs: $(ZRELADDR)'; \ 176 echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \ --- 26 unchanged lines hidden --- | 169[ -z "$$bad_syms" ] || \ 170 ( echo "following symbols must have non local/private scope:" >&2; \ 171 echo "$$bad_syms" >&2; false ) 172 173check_for_multiple_zreladdr = \ 174if [ $(words $(ZRELADDR)) -gt 1 -a "$(CONFIG_AUTO_ZRELADDR)" = "" ]; then \ 175 echo 'multiple zreladdrs: $(ZRELADDR)'; \ 176 echo 'This needs CONFIG_AUTO_ZRELADDR to be set'; \ --- 26 unchanged lines hidden --- |