| Makefile (74c12ee02af109adcde36ec184fa59c0afb0edaa) | Makefile (40d04110f87940b6a03bf0aa19cd29e84f465f20) |
|---|---|
| 1# SPDX-License-Identifier: GPL-2.0 2# 3# Building vDSO images for x86. 4# 5 6# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before 7# the inclusion of generic Makefile. 8ARCH_REL_TYPE_ABS := R_X86_64_JUMP_SLOT|R_X86_64_GLOB_DAT|R_X86_64_RELATIVE| 9ARCH_REL_TYPE_ABS += R_386_GLOB_DAT|R_386_JMP_SLOT|R_386_RELATIVE 10include $(srctree)/lib/vdso/Makefile 11 12KBUILD_CFLAGS += $(DISABLE_LTO) | 1# SPDX-License-Identifier: GPL-2.0 2# 3# Building vDSO images for x86. 4# 5 6# Absolute relocation type $(ARCH_REL_TYPE_ABS) needs to be defined before 7# the inclusion of generic Makefile. 8ARCH_REL_TYPE_ABS := R_X86_64_JUMP_SLOT|R_X86_64_GLOB_DAT|R_X86_64_RELATIVE| 9ARCH_REL_TYPE_ABS += R_386_GLOB_DAT|R_386_JMP_SLOT|R_386_RELATIVE 10include $(srctree)/lib/vdso/Makefile 11 12KBUILD_CFLAGS += $(DISABLE_LTO) |
| 13 14# Sanitizer runtimes are unavailable and cannot be linked here. |
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| 13KASAN_SANITIZE := n 14UBSAN_SANITIZE := n | 15KASAN_SANITIZE := n 16UBSAN_SANITIZE := n |
| 17KCSAN_SANITIZE := n |
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| 15OBJECT_FILES_NON_STANDARD := y 16 17# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. 18KCOV_INSTRUMENT := n 19 20VDSO64-$(CONFIG_X86_64) := y 21VDSOX32-$(CONFIG_X86_X32_ABI) := y 22VDSO32-$(CONFIG_X86_32) := y --- 31 unchanged lines hidden (view full) --- 54 55VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -soname linux-vdso.so.1 --no-undefined \ 56 -z max-page-size=4096 57 58$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE 59 $(call if_changed,vdso_and_check) 60 61HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi -I$(srctree)/arch/$(SUBARCH)/include/uapi | 18OBJECT_FILES_NON_STANDARD := y 19 20# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. 21KCOV_INSTRUMENT := n 22 23VDSO64-$(CONFIG_X86_64) := y 24VDSOX32-$(CONFIG_X86_X32_ABI) := y 25VDSO32-$(CONFIG_X86_32) := y --- 31 unchanged lines hidden (view full) --- 57 58VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -soname linux-vdso.so.1 --no-undefined \ 59 -z max-page-size=4096 60 61$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE 62 $(call if_changed,vdso_and_check) 63 64HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi -I$(srctree)/arch/$(SUBARCH)/include/uapi |
| 62hostprogs += vdso2c | 65hostprogs-y += vdso2c |
| 63 64quiet_cmd_vdso2c = VDSO2C $@ 65 cmd_vdso2c = $(obj)/vdso2c $< $(<:%.dbg=%) $@ 66 67$(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE 68 $(call if_changed,vdso2c) 69 70# --- 11 unchanged lines hidden (view full) --- 82endif 83endif 84 85$(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL) 86 87# 88# vDSO code runs in userspace and -pg doesn't help with profiling anyway. 89# | 66 67quiet_cmd_vdso2c = VDSO2C $@ 68 cmd_vdso2c = $(obj)/vdso2c $< $(<:%.dbg=%) $@ 69 70$(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE 71 $(call if_changed,vdso2c) 72 73# --- 11 unchanged lines hidden (view full) --- 85endif 86endif 87 88$(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL) 89 90# 91# vDSO code runs in userspace and -pg doesn't help with profiling anyway. 92# |
| 93CFLAGS_REMOVE_vdso-note.o = -pg |
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| 90CFLAGS_REMOVE_vclock_gettime.o = -pg 91CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg 92CFLAGS_REMOVE_vgetcpu.o = -pg | 94CFLAGS_REMOVE_vclock_gettime.o = -pg 95CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg 96CFLAGS_REMOVE_vgetcpu.o = -pg |
| 97CFLAGS_REMOVE_vvar.o = -pg |
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| 93 94# 95# X32 processes use x32 vDSO to access 64bit kernel data. 96# 97# Build x32 vDSO image: 98# 1. Compile x32 vDSO as 64bit. 99# 2. Convert object files to x32. 100# 3. Build x32 VDSO image with x32 objects, which contains 64bit codes --- 112 unchanged lines hidden --- | 98 99# 100# X32 processes use x32 vDSO to access 64bit kernel data. 101# 102# Build x32 vDSO image: 103# 1. Compile x32 vDSO as 64bit. 104# 2. Convert object files to x32. 105# 3. Build x32 VDSO image with x32 objects, which contains 64bit codes --- 112 unchanged lines hidden --- |