diff options
Diffstat (limited to 'target/linux/uml/patches-4.4/000-um-Avoid-longjmp-setjmp-symbol-clashes-with-libpthre.patch')
| -rw-r--r-- | target/linux/uml/patches-4.4/000-um-Avoid-longjmp-setjmp-symbol-clashes-with-libpthre.patch | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/target/linux/uml/patches-4.4/000-um-Avoid-longjmp-setjmp-symbol-clashes-with-libpthre.patch b/target/linux/uml/patches-4.4/000-um-Avoid-longjmp-setjmp-symbol-clashes-with-libpthre.patch deleted file mode 100644 index 02149eea7a..0000000000 --- a/target/linux/uml/patches-4.4/000-um-Avoid-longjmp-setjmp-symbol-clashes-with-libpthre.patch +++ /dev/null @@ -1,130 +0,0 @@ -From f44f1e7da7c8e3f4575d5d61c4df978496903fcc Mon Sep 17 00:00:00 2001 -From: Florian Fainelli <f.fainelli@gmail.com> -Date: Tue, 23 May 2017 17:32:31 -0700 -Subject: [PATCH] um: Avoid longjmp/setjmp symbol clashes with libpthread.a - -[ Upstream commit f44f1e7da7c8e3f4575d5d61c4df978496903fcc ] - -Building a statically linked UML kernel on a Centos 6.9 host resulted in -the following linking failure (GCC 4.4, glibc-2.12): - -/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libpthread.a(libpthread.o): -In function `siglongjmp': -(.text+0x8490): multiple definition of `longjmp' -arch/x86/um/built-in.o:/local/users/fainelli/openwrt/trunk/build_dir/target-x86_64_musl/linux-uml/linux-4.4.69/arch/x86/um/setjmp_64.S:44: -first defined here -/usr/lib/gcc/x86_64-redhat-linux/4.4.7/../../../../lib64/libpthread.a(libpthread.o): -In function `sem_open': -(.text+0x77cd): warning: the use of `mktemp' is dangerous, better use -`mkstemp' -collect2: ld returned 1 exit status -make[4]: *** [vmlinux] Error 1 - -Adopt a solution similar to the one done for vmap where we define -longjmp/setjmp to be kernel_longjmp/setjmp. In the process, make sure we -do rename the functions in arch/x86/um/setjmp_*.S accordingly. - -Fixes: a7df4716d195 ("um: link with -lpthread") -Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> -Signed-off-by: Richard Weinberger <richard@nod.at> ---- - arch/um/Makefile | 4 ++++ - arch/x86/um/setjmp_32.S | 16 ++++++++-------- - arch/x86/um/setjmp_64.S | 16 ++++++++-------- - 3 files changed, 20 insertions(+), 16 deletions(-) - ---- a/arch/um/Makefile -+++ b/arch/um/Makefile -@@ -59,10 +59,14 @@ KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_D - # Same things for in6addr_loopback and mktime - found in libc. For these two we - # only get link-time error, luckily. - # -+# -Dlongjmp=kernel_longjmp prevents anything from referencing the libpthread.a -+# embedded copy of longjmp, same thing for setjmp. -+# - # These apply to USER_CFLAGS to. - - KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \ - $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \ -+ -Dlongjmp=kernel_longjmp -Dsetjmp=kernel_setjmp \ - -Din6addr_loopback=kernel_in6addr_loopback \ - -Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr - ---- a/arch/x86/um/setjmp_32.S -+++ b/arch/x86/um/setjmp_32.S -@@ -16,9 +16,9 @@ - - .text - .align 4 -- .globl setjmp -- .type setjmp, @function --setjmp: -+ .globl kernel_setjmp -+ .type kernel_setjmp, @function -+kernel_setjmp: - #ifdef _REGPARM - movl %eax,%edx - #else -@@ -35,13 +35,13 @@ setjmp: - movl %ecx,20(%edx) # Return address - ret - -- .size setjmp,.-setjmp -+ .size kernel_setjmp,.-kernel_setjmp - - .text - .align 4 -- .globl longjmp -- .type longjmp, @function --longjmp: -+ .globl kernel_longjmp -+ .type kernel_longjmp, @function -+kernel_longjmp: - #ifdef _REGPARM - xchgl %eax,%edx - #else -@@ -55,4 +55,4 @@ longjmp: - movl 16(%edx),%edi - jmp *20(%edx) - -- .size longjmp,.-longjmp -+ .size kernel_longjmp,.-kernel_longjmp ---- a/arch/x86/um/setjmp_64.S -+++ b/arch/x86/um/setjmp_64.S -@@ -18,9 +18,9 @@ - - .text - .align 4 -- .globl setjmp -- .type setjmp, @function --setjmp: -+ .globl kernel_setjmp -+ .type kernel_setjmp, @function -+kernel_setjmp: - pop %rsi # Return address, and adjust the stack - xorl %eax,%eax # Return value - movq %rbx,(%rdi) -@@ -34,13 +34,13 @@ setjmp: - movq %rsi,56(%rdi) # Return address - ret - -- .size setjmp,.-setjmp -+ .size kernel_setjmp,.-kernel_setjmp - - .text - .align 4 -- .globl longjmp -- .type longjmp, @function --longjmp: -+ .globl kernel_longjmp -+ .type kernel_longjmp, @function -+kernel_longjmp: - movl %esi,%eax # Return value (int) - movq (%rdi),%rbx - movq 8(%rdi),%rsp -@@ -51,4 +51,4 @@ longjmp: - movq 48(%rdi),%r15 - jmp *56(%rdi) - -- .size longjmp,.-longjmp -+ .size kernel_longjmp,.-kernel_longjmp |