Nicolas Thill
14 years ago
parent
e6bf527f82
commit
a09235eca6
@ -1,11 +0,0 @@ |
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--- a/arch/um/Makefile-i386
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+++ b/arch/um/Makefile-i386
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@@ -35,7 +35,7 @@ cflags-y += -ffreestanding
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# Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
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# a lot more stack due to the lack of sharing of stacklots. Also, gcc
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# 4.3.0 needs -funit-at-a-time for extern inline functions.
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-KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0400 ] ; then \
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+KBUILD_CFLAGS += $(shell if [ $(call cc-version) -lt 0403 ] ; then \
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echo $(call cc-option,-fno-unit-at-a-time); \
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else echo $(call cc-option,-funit-at-a-time); fi ;)
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@ -1,21 +0,0 @@ |
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--- a/arch/um/Makefile-i386
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+++ b/arch/um/Makefile-i386
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@@ -39,4 +39,8 @@ KBUILD_CFLAGS += $(shell if [ $(call cc-
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echo $(call cc-option,-fno-unit-at-a-time); \
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else echo $(call cc-option,-funit-at-a-time); fi ;)
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+# disable compile-time buffer checks, enabled by default on Ubuntu 8.10
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+# and later
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+KBUILD_CFLAGS += $(call cc-option,-U_FORTIFY_SOURCE)
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+
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KBUILD_CFLAGS += $(cflags-y)
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--- a/arch/um/Makefile-x86_64
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+++ b/arch/um/Makefile-x86_64
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@@ -24,3 +24,7 @@ LINK-y += -m64
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# Do unit-at-a-time unconditionally on x86_64, following the host
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KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
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+
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+# disable compile-time buffer checks, enabled by default on Ubuntu 8.10
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+# and later
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+KBUILD_CFLAGS += $(call cc-option,-U_FORTIFY_SOURCE)
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@ -1,11 +0,0 @@ |
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--- a/arch/um/os-Linux/user_syms.c
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+++ b/arch/um/os-Linux/user_syms.c
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@@ -23,7 +23,7 @@ extern int printf(const char *, ...);
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EXPORT_SYMBOL(strstr);
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#endif
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-#ifndef __x86_64__
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+#if !defined(__x86_64) || (__GNUC__ == 4 && __GNUC_MINOR__ < 3) || (__GNUC__ < 4)
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extern void *memcpy(void *, const void *, size_t);
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EXPORT_SYMBOL(memcpy);
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#endif
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@ -1,38 +0,0 @@ |
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When I compiled uml on x86_64, I got this warning:
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MODPOST vmlinux.o
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WARNING: vmlinux.o (.__syscall_stub.2): unexpected non-allocatable section.
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Did you forget to use "ax"/"aw" in a .S file?
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Note that for example <linux/init.h> contains
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section definitions for use in .S files.
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Because modpost checks for missing SHF_ALLOC section flag. So just
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add it. :)
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Signed-off-by: WANG Cong <amwang@redhat.com>
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Cc: Jeff Dike <jdike@addtoit.com>
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Cc: Sam Ravnborg <sam@ravnborg.org>
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---
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--- a/arch/um/sys-x86_64/stub.S
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+++ b/arch/um/sys-x86_64/stub.S
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@@ -1,7 +1,7 @@
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#include "as-layout.h"
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.globl syscall_stub
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-.section .__syscall_stub, "x"
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+.section .__syscall_stub, "ax"
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syscall_stub:
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syscall
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/* We don't have 64-bit constants, so this constructs the address
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--- a/arch/um/sys-i386/stub.S
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+++ b/arch/um/sys-i386/stub.S
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@@ -1,7 +1,7 @@
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#include "as-layout.h"
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.globl syscall_stub
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-.section .__syscall_stub, "x"
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+.section .__syscall_stub, "ax"
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.globl batch_syscall_stub
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batch_syscall_stub:
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@ -1,45 +0,0 @@ |
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commit 67dac695a1f33716f3e35c2292e7391410d58751
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Author: Paul Bolle <pebolle@tiscali.nl>
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Date: Sun Sep 6 14:36:01 2009 +0200
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um: add work around for build problems with bash 4
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Building User Mode Linux fails with bash 4. The UML Makefiles use an
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environment variable called CPPFLAGS_vmlinux.lds but bash 4 does not
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export environment variables with a dot in their name. Add a hack to
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allow building UML with bash 4 (which should not affect other shells).
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Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
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--- a/arch/um/Makefile
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+++ b/arch/um/Makefile
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@@ -99,9 +99,6 @@ CFLAGS_NO_HARDENING := $(call cc-option,
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CONFIG_KERNEL_STACK_ORDER ?= 2
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STACK_SIZE := $(shell echo $$[ 4096 * (1 << $(CONFIG_KERNEL_STACK_ORDER)) ] )
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-CPPFLAGS_vmlinux.lds = -U$(SUBARCH) -DSTART=$(START) -DELF_ARCH=$(ELF_ARCH) \
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- -DELF_FORMAT="$(ELF_FORMAT)" -DKERNEL_STACK_SIZE=$(STACK_SIZE)
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-
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# The wrappers will select whether using "malloc" or the kernel allocator.
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LINK_WRAPS = -Wl,--wrap,malloc -Wl,--wrap,free -Wl,--wrap,calloc
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@@ -152,4 +149,5 @@ $(SHARED_HEADERS)/kern_constants.h:
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$(Q)mkdir -p $(dir $@)
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$(Q)echo '#include "../../../../include/asm/asm-offsets.h"' >$@
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-export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH
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+export SUBARCH USER_CFLAGS CFLAGS_NO_HARDENING OS HEADER_ARCH DEV_NULL_PATH \
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+ ELF_ARCH ELF_FORMAT STACK_SIZE START
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--- a/arch/um/kernel/Makefile
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+++ b/arch/um/kernel/Makefile
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@@ -3,6 +3,10 @@
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# Licensed under the GPL
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#
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+CPPFLAGS_vmlinux.lds = -P -C -U$(ARCH) -U$(SUBARCH) -DSTART=$(START) \
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+ -DELF_ARCH=$(ELF_ARCH) -DELF_FORMAT="$(ELF_FORMAT)" \
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+ -DKERNEL_STACK_SIZE=$(STACK_SIZE)
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+
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extra-y := vmlinux.lds
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clean-files :=
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@ -1,50 +0,0 @@ |
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--- a/arch/um/kernel/dyn.lds.S
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+++ b/arch/um/kernel/dyn.lds.S
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@@ -54,8 +54,21 @@ SECTIONS
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.rela.got : { *(.rela.got) }
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.rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) }
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.rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) }
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- .rel.plt : { *(.rel.plt) }
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- .rela.plt : { *(.rela.plt) }
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+ /* Deal with multilib libc */
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+ .rel.plt :
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+ {
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+ *(.rel.plt)
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+ PROVIDE_HIDDEN (__rel_iplt_start = .);
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+ *(.rel.iplt)
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+ PROVIDE_HIDDEN (__rel_iplt_end = .);
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+ }
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+ .rela.plt :
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+ {
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+ *(.rela.plt)
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+ PROVIDE_HIDDEN (__rela_iplt_start = .);
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+ *(.rela.iplt)
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+ PROVIDE_HIDDEN (__rela_iplt_end = .);
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+ }
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.init : {
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KEEP (*(.init))
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} =0x90909090
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--- a/arch/um/kernel/uml.lds.S
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+++ b/arch/um/kernel/uml.lds.S
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@@ -39,6 +39,21 @@ SECTIONS
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*(.gnu.warning)
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*(.gnu.linkonce.t*)
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}
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+ /* Deal with multilib libc */
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+ .rel.plt :
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+ {
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+ *(.rel.plt)
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+ PROVIDE_HIDDEN (__rel_iplt_start = .);
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+ *(.rel.iplt)
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+ PROVIDE_HIDDEN (__rel_iplt_end = .);
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+ }
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+ .rela.plt :
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+ {
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+ *(.rela.plt)
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+ PROVIDE_HIDDEN (__rela_iplt_start = .);
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+ *(.rela.iplt)
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+ PROVIDE_HIDDEN (__rela_iplt_end = .);
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+ }
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. = ALIGN(PAGE_SIZE);
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.syscall_stub : {
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@ -1,14 +0,0 @@ |
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make ZLIB_DEFLATE visible, so that we can choose whether we want it built-in
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or as a module
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--- a/lib/Kconfig
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+++ b/lib/Kconfig
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@@ -92,7 +92,7 @@ config ZLIB_INFLATE
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tristate
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config ZLIB_DEFLATE
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- tristate
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+ tristate "Zlib compression"
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config LZO_COMPRESS
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tristate
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