uml: update to linux 4.14

Signed-off-by: Felix Fietkau <nbd@nbd.name>

target/linux/uml/Makefile

@@ -22,7 +22,7 @@ BOARDNAME:=User Mode Linux
 FEATURES:=squashfs ext4 audio source-only
 MAINTAINER:=Florian Fainelli <florian@openwrt.org>
 
-KERNEL_PATCHVER:=4.9
+KERNEL_PATCHVER:=4.14
 
 include $(INCLUDE_DIR)/target.mk
 

target/linux/uml/config/i386

@@ -2,14 +2,21 @@
 # CONFIG_64BIT is not set
 CONFIG_ARCH_DEFCONFIG="arch/um/configs/i386_defconfig"
 # CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+CONFIG_ARCH_HAS_KCOV=y
 CONFIG_ARCH_HAS_SC_SIGNALS=y
 # CONFIG_ARCH_HAS_SG_CHAIN is not set
+# CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set
+# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
 CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
 CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
 CONFIG_BLK_DEV_COW_COMMON=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_UBD=y
 CONFIG_BLK_DEV_UBD_SYNC=y
+CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_CLONE_BACKWARDS=y
 CONFIG_CON_CHAN="xterm"
 CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
@@ -21,12 +28,12 @@ CONFIG_CPU_SUP_TRANSMETA_32=y
 CONFIG_CPU_SUP_UMC_32=y
 # CONFIG_CRASHLOG is not set
 CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32=y
 CONFIG_CRYPTO_CRC32C=y
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_HASH2=y
 CONFIG_CRYPTO_RNG2=y
 CONFIG_CRYPTO_WORKQUEUE=y
-CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_DECOMPRESS_BZIP2=y
 CONFIG_DECOMPRESS_GZIP=y
@@ -43,17 +50,19 @@ CONFIG_F2FS_FS=y
 CONFIG_F2FS_FS_XATTR=y
 CONFIG_F2FS_STAT_FS=y
 CONFIG_FS_MBCACHE=y
-CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_CLOCKEVENTS=y
 CONFIG_GENERIC_CPU_DEVICES=y
 CONFIG_GENERIC_FIND_FIRST_BIT=y
 CONFIG_GENERIC_IO=y
 CONFIG_GENERIC_IRQ_SHOW=y
+# CONFIG_GRO_CELLS is not set
 # CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
 CONFIG_HAVE_AOUT=y
 CONFIG_HAVE_ARCH_AUDITSYSCALL=y
 # CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
 # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
 CONFIG_HAVE_FUTEX_CMPXCHG=y
 # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_HAVE_NET_DSA=y
@@ -67,7 +76,6 @@ CONFIG_IOSCHED_CFQ=y
 CONFIG_IRQ_WORK=y
 CONFIG_ISO9660_FS=y
 CONFIG_JBD2=y
-# CONFIG_JFFS2_CMODE_PRIORITY is not set
 # CONFIG_JFFS2_FS is not set
 CONFIG_KALLSYMS=y
 CONFIG_KERNEL_STACK_ORDER=2
@@ -85,6 +93,7 @@ CONFIG_MCONSOLE=y
 # CONFIG_MCORE2 is not set
 # CONFIG_MCRUSOE is not set
 # CONFIG_MCYRIXIII is not set
+# CONFIG_MDIO_BUS is not set
 # CONFIG_MEFFICEON is not set
 # CONFIG_MELAN is not set
 # CONFIG_MGEODEGX1 is not set
@@ -109,6 +118,7 @@ CONFIG_NLS=y
 # CONFIG_NOCONFIG_CHAN is not set
 CONFIG_NO_DMA=y
 CONFIG_NO_IOMEM=y
+CONFIG_NR_CPUS=1
 # CONFIG_NSC_GPIO is not set
 CONFIG_NULL_CHAN=y
 # CONFIG_OF is not set
@@ -118,10 +128,10 @@ CONFIG_PGTABLE_LEVELS=2
 CONFIG_PORT_CHAN=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_POSIX_MQUEUE_SYSCTL=y
-CONFIG_PRINT_QUOTA_WARNING=y
 # CONFIG_PROCESSOR_SELECT is not set
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_PTY_CHAN=y
+# CONFIG_RCU_NEED_SEGCBLIST is not set
 # CONFIG_RCU_STALL_COMMON is not set
 CONFIG_RD_BZIP2=y
 CONFIG_RD_GZIP=y
@@ -134,7 +144,6 @@ CONFIG_SOFT_WATCHDOG=m
 CONFIG_SOUND=m
 CONFIG_SOUND_OSS_CORE=y
 CONFIG_SOUND_OSS_CORE_PRECLAIM=y
-CONFIG_SQUASHFS_EMBEDDED=y
 CONFIG_SRCU=y
 CONFIG_SSL=y
 CONFIG_SSL_CHAN="pty"
@@ -142,7 +151,7 @@ CONFIG_STACKTRACE=y
 CONFIG_STATIC_LINK=y
 CONFIG_STDERR_CONSOLE=y
 CONFIG_TICK_CPU_ACCOUNTING=y
-# CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
+CONFIG_TINY_SRCU=y
 CONFIG_TTY_CHAN=y
 CONFIG_UML=y
 CONFIG_UML_NET=y
@@ -175,4 +184,3 @@ CONFIG_X86_TSC=y
 CONFIG_X86_USE_PPRO_CHECKSUM=y
 CONFIG_XTERM_CHAN=y
 CONFIG_ZLIB_INFLATE=y
-CONFIG_ZONE_DMA_FLAG=0

target/linux/uml/config/x86_64

@@ -2,14 +2,21 @@ CONFIG_3_LEVEL_PGTABLES=y
 CONFIG_64BIT=y
 CONFIG_ARCH_DEFCONFIG="arch/um/configs/x86_64_defconfig"
 # CONFIG_ARCH_HAS_GCOV_PROFILE_ALL is not set
+CONFIG_ARCH_HAS_KCOV=y
 # CONFIG_ARCH_HAS_SC_SIGNALS is not set
 # CONFIG_ARCH_HAS_SG_CHAIN is not set
+# CONFIG_ARCH_HAS_STRICT_KERNEL_RWX is not set
+# CONFIG_ARCH_HAS_STRICT_MODULE_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX is not set
+# CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT is not set
 # CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA is not set
 CONFIG_BINFMT_MISC=m
 CONFIG_BLK_DEV_COW_COMMON=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_UBD=y
 CONFIG_BLK_DEV_UBD_SYNC=y
+CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_CON_CHAN="xterm"
 CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
 CONFIG_CPU_SUP_AMD=y
@@ -18,16 +25,15 @@ CONFIG_CPU_SUP_INTEL=y
 # CONFIG_CRASHLOG is not set
 CONFIG_CRC16=y
 # CONFIG_CRYPTO_AES_X86_64 is not set
+CONFIG_CRYPTO_CRC32=y
 CONFIG_CRYPTO_CRC32C=y
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_HASH2=y
 CONFIG_CRYPTO_RNG2=y
-# CONFIG_CRYPTO_SALSA20_X86_64 is not set
 CONFIG_CRYPTO_SHA1=y
 # CONFIG_CRYPTO_SKEIN is not set
 # CONFIG_CRYPTO_TWOFISH_X86_64 is not set
 CONFIG_CRYPTO_WORKQUEUE=y
-CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_DECOMPRESS_BZIP2=y
 CONFIG_DECOMPRESS_GZIP=y
@@ -43,17 +49,19 @@ CONFIG_F2FS_FS=y
 CONFIG_F2FS_FS_XATTR=y
 CONFIG_F2FS_STAT_FS=y
 CONFIG_FS_MBCACHE=y
-CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_CLOCKEVENTS=y
 # CONFIG_GENERIC_CPU is not set
 CONFIG_GENERIC_CPU_DEVICES=y
 CONFIG_GENERIC_FIND_FIRST_BIT=y
 CONFIG_GENERIC_IO=y
 CONFIG_GENERIC_IRQ_SHOW=y
+# CONFIG_GRO_CELLS is not set
 CONFIG_HAVE_64BIT_ALIGNED_ACCESS=y
 CONFIG_HAVE_ARCH_AUDITSYSCALL=y
 # CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
 # CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
 CONFIG_HAVE_FUTEX_CMPXCHG=y
 # CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
 CONFIG_HAVE_NET_DSA=y
@@ -77,6 +85,7 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_MATOM is not set
 CONFIG_MCONSOLE=y
 # CONFIG_MCORE2 is not set
+# CONFIG_MDIO_BUS is not set
 CONFIG_MK8=y
 # CONFIG_MMAPPER is not set
 CONFIG_MODULES_USE_ELF_RELA=y
@@ -88,6 +97,7 @@ CONFIG_NLS=y
 # CONFIG_NOCONFIG_CHAN is not set
 CONFIG_NO_DMA=y
 CONFIG_NO_IOMEM=y
+CONFIG_NR_CPUS=1
 CONFIG_NULL_CHAN=y
 # CONFIG_OF is not set
 CONFIG_PGTABLE_LEVELS=3
@@ -98,6 +108,7 @@ CONFIG_POSIX_MQUEUE_SYSCTL=y
 # CONFIG_PROCESSOR_SELECT is not set
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_PTY_CHAN=y
+# CONFIG_RCU_NEED_SEGCBLIST is not set
 # CONFIG_RCU_STALL_COMMON is not set
 CONFIG_RD_BZIP2=y
 CONFIG_RD_GZIP=y
@@ -110,7 +121,6 @@ CONFIG_SOFT_WATCHDOG=m
 CONFIG_SOUND=m
 CONFIG_SOUND_OSS_CORE=y
 CONFIG_SOUND_OSS_CORE_PRECLAIM=y
-CONFIG_SQUASHFS_EMBEDDED=y
 CONFIG_SRCU=y
 CONFIG_SSL=y
 CONFIG_SSL_CHAN="pty"
@@ -118,7 +128,7 @@ CONFIG_STACKTRACE=y
 CONFIG_STATIC_LINK=y
 CONFIG_STDERR_CONSOLE=y
 CONFIG_TICK_CPU_ACCOUNTING=y
-# CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
+CONFIG_TINY_SRCU=y
 CONFIG_TTY_CHAN=y
 CONFIG_UML=y
 CONFIG_UML_NET=y
@@ -150,4 +160,3 @@ CONFIG_X86_TSC=y
 CONFIG_X86_USE_PPRO_CHECKSUM=y
 CONFIG_XTERM_CHAN=y
 CONFIG_ZLIB_INFLATE=y
-CONFIG_ZONE_DMA_FLAG=0

target/linux/uml/patches-4.14/101-mconsole-exec.patch

@@ -31,19 +31,19 @@
   * Licensed under the GPL
   */
  
-+#include "linux/kmod.h"
++#include <linux/kmod.h>
  #include <linux/console.h>
  #include <linux/ctype.h>
  #include <linux/string.h>
-@@ -24,6 +25,7 @@
+@@ -26,6 +27,7 @@
- #include <linux/fs.h>
  #include <linux/mount.h>
  #include <linux/file.h>
+ #include <linux/uaccess.h>
 +#include <linux/completion.h>
- #include <asm/uaccess.h>
  #include <asm/switch_to.h>
  
-@@ -121,6 +123,59 @@ void mconsole_log(struct mc_request *req
+ #include <init.h>
+@@ -122,6 +124,59 @@ void mconsole_log(struct mc_request *req
  	mconsole_reply(req, "", 0, 0);
  }
  
@@ -103,7 +103,7 @@
  void mconsole_proc(struct mc_request *req)
  {
  	struct vfsmount *mnt = task_active_pid_ns(current)->proc_mnt;
-@@ -187,6 +242,7 @@ void mconsole_proc(struct mc_request *re
+@@ -183,6 +238,7 @@ void mconsole_proc(struct mc_request *re
      stop - pause the UML; it will do nothing until it receives a 'go' \n\
      go - continue the UML after a 'stop' \n\
      log <string> - make UML enter <string> into the kernel log\n\
@@ -134,32 +134,34 @@
  	err = bind(sock, (struct sockaddr *) &addr, sizeof(addr));
 --- a/include/linux/kmod.h
 +++ b/include/linux/kmod.h
-@@ -62,6 +62,7 @@ struct subprocess_info {
+@@ -45,4 +45,6 @@ static inline int request_module_nowait(
- 	int wait;
+ #define try_then_request_module(x, mod...) (x)
- 	int retval;
+ #endif
- 	int (*init)(struct subprocess_info *info, struct cred *new);
-+	struct file *stdout;
- 	void (*cleanup)(struct subprocess_info *info);
- 	void *data;
- };
-@@ -102,4 +103,6 @@ extern int usermodehelper_read_trylock(v
- extern long usermodehelper_read_lock_wait(long timeout);
- extern void usermodehelper_read_unlock(void);
  
 +int call_usermodehelper_stdoutpipe(struct subprocess_info *sub_info, struct file **filp);
 +
  #endif /* __LINUX_KMOD_H__ */
---- a/kernel/kmod.c
+--- a/include/linux/umh.h
-+++ b/kernel/kmod.c
++++ b/include/linux/umh.h
-@@ -39,6 +39,7 @@
+@@ -22,6 +22,7 @@ struct subprocess_info {
- #include <linux/rwsem.h>
+ 	const char *path;
+ 	char **argv;
+ 	char **envp;
++	struct file *stdout;
+ 	int wait;
+ 	int retval;
+ 	int (*init)(struct subprocess_info *info, struct cred *new);
+--- a/kernel/umh.c
++++ b/kernel/umh.c
+@@ -25,6 +25,7 @@
  #include <linux/ptrace.h>
  #include <linux/async.h>
+ #include <linux/uaccess.h>
 +#include <linux/pipe_fs_i.h>
- #include <asm/uaccess.h>
  
  #include <trace/events/module.h>
-@@ -222,6 +223,28 @@ static int call_usermodehelper_exec_asyn
+ 
+@@ -70,6 +71,28 @@ static int call_usermodehelper_exec_asyn
  	flush_signal_handlers(current, 1);
  	spin_unlock_irq(&current->sighand->siglock);
  
@@ -188,7 +190,7 @@
  	/*
  	 * Our parent (unbound workqueue) runs with elevated scheduling
  	 * priority. Avoid propagating that into the userspace child.
-@@ -540,6 +563,20 @@ struct subprocess_info *call_usermodehel
+@@ -393,6 +416,20 @@ struct subprocess_info *call_usermodehel
  }
  EXPORT_SYMBOL(call_usermodehelper_setup);
  
@@ -199,12 +201,12 @@
 +
 +	if (create_pipe_files(f, 0) < 0)
 +		return PTR_ERR(f);
++
 +	sub_info->stdout = f[1];
 +	*filp = f[0];
 +	return 0;
 +}
 +EXPORT_SYMBOL(call_usermodehelper_stdoutpipe);
-+
 +
  /**
   * call_usermodehelper_exec - start a usermode application

target/linux/uml/patches-4.14/102-pseudo-random-mac.patch

@@ -11,7 +11,7 @@ Applies to vanilla kernel 3.9.4.
 ===============================================================================
 --- a/arch/um/Kconfig.net
 +++ b/arch/um/Kconfig.net
-@@ -21,6 +21,19 @@ config UML_NET
+@@ -22,6 +22,19 @@ config UML_NET
          enable at least one of the following transport options to actually
          make use of UML networking.
  
@@ -48,7 +48,7 @@ Applies to vanilla kernel 3.9.4.
  #define DRIVER_NAME "uml-netdev"
  
  static DEFINE_SPINLOCK(opened_lock);
-@@ -295,11 +303,53 @@ static void uml_net_user_timer_expire(un
+@@ -288,11 +296,53 @@ static void uml_net_user_timer_expire(un
  #endif
  }
  
@@ -102,7 +102,7 @@ Applies to vanilla kernel 3.9.4.
  
  	if (str == NULL)
  		goto random;
-@@ -340,9 +390,26 @@ static void setup_etheraddr(struct net_d
+@@ -333,9 +383,26 @@ static void setup_etheraddr(struct net_d
  	return;
  
  random:

target/linux/uml/patches-4.9/000-um-Avoid-longjmp-setjmp-symbol-clashes-with-libpthre.patch

@@ -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

target/linux/uml/patches-4.9/001-um-Allow-building-and-running-on-older-hosts.patch

@@ -1,99 +0,0 @@
-From 0a987645672ebde7844a9c0732a5a25f3d4bb6c6 Mon Sep 17 00:00:00 2001
-From: Florian Fainelli <f.fainelli@gmail.com>
-Date: Thu, 25 May 2017 11:36:26 -0700
-Subject: [PATCH] um: Allow building and running on older hosts
-
-[ Upstream commit 0a987645672ebde7844a9c0732a5a25f3d4bb6c6 ]
-
-Commit a78ff1112263 ("um: add extended processor state save/restore
-support") and b6024b21fec8 ("um: extend fpstate to _xstate to support
-YMM registers") forced the use of the x86 FP _xstate and
-PTRACE_GETREGSET/SETREGSET. On older hosts, we would neither be able to
-build UML nor run it anymore with these two commits applied because we
-don't have definitions for struct _xstate nor these two ptrace requests.
-
-We can determine at build time which fp context structure to check
-against, just like we can keep using the old i387 fp save/restore if
-PTRACE_GETRESET/SETREGSET are not defined.
-
-Fixes: a78ff1112263 ("um: add extended processor state save/restore support")
-Fixes: b6024b21fec8 ("um: extend fpstate to _xstate to support YMM registers")
-Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/x86/um/os-Linux/registers.c | 12 ++++++++----
- arch/x86/um/user-offsets.c       |  4 ++++
- 2 files changed, 12 insertions(+), 4 deletions(-)
-
---- a/arch/x86/um/os-Linux/registers.c
-+++ b/arch/x86/um/os-Linux/registers.c
-@@ -26,6 +26,7 @@ int save_i387_registers(int pid, unsigne
- 
- int save_fp_registers(int pid, unsigned long *fp_regs)
- {
-+#ifdef PTRACE_GETREGSET
- 	struct iovec iov;
- 
- 	if (have_xstate_support) {
-@@ -34,9 +35,9 @@ int save_fp_registers(int pid, unsigned
- 		if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
- 			return -errno;
- 		return 0;
--	} else {
-+	} else
-+#endif
- 		return save_i387_registers(pid, fp_regs);
--	}
- }
- 
- int restore_i387_registers(int pid, unsigned long *fp_regs)
-@@ -48,6 +49,7 @@ int restore_i387_registers(int pid, unsi
- 
- int restore_fp_registers(int pid, unsigned long *fp_regs)
- {
-+#ifdef PTRACE_SETREGSET
- 	struct iovec iov;
- 
- 	if (have_xstate_support) {
-@@ -56,9 +58,9 @@ int restore_fp_registers(int pid, unsign
- 		if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
- 			return -errno;
- 		return 0;
--	} else {
-+	} else
-+#endif
- 		return restore_i387_registers(pid, fp_regs);
--	}
- }
- 
- #ifdef __i386__
-@@ -122,6 +124,7 @@ int put_fp_registers(int pid, unsigned l
- 
- void arch_init_registers(int pid)
- {
-+#ifdef PTRACE_GETREGSET
- 	struct _xstate fp_regs;
- 	struct iovec iov;
- 
-@@ -129,6 +132,7 @@ void arch_init_registers(int pid)
- 	iov.iov_len = sizeof(struct _xstate);
- 	if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) == 0)
- 		have_xstate_support = 1;
-+#endif
- }
- #endif
- 
---- a/arch/x86/um/user-offsets.c
-+++ b/arch/x86/um/user-offsets.c
-@@ -50,7 +50,11 @@ void foo(void)
- 	DEFINE(HOST_GS, GS);
- 	DEFINE(HOST_ORIG_AX, ORIG_EAX);
- #else
-+#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
- 	DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
-+#else
-+	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
-+#endif
- 	DEFINE_LONGS(HOST_BX, RBX);
- 	DEFINE_LONGS(HOST_CX, RCX);
- 	DEFINE_LONGS(HOST_DI, RDI);

target/linux/uml/patches-4.9/002-um-Correctly-check-for-PTRACE_GETRESET-SETREGSET.patch

@@ -1,29 +0,0 @@
-From 61e8d462457f202bf0c6393133425ad387825e22 Mon Sep 17 00:00:00 2001
-From: Richard Weinberger <richard@nod.at>
-Date: Thu, 6 Jul 2017 09:35:27 +0200
-Subject: [PATCH] um: Correctly check for PTRACE_GETRESET/SETREGSET
-
-[ Upstream commit 61e8d462457f202bf0c6393133425ad387825e22 ]
-
-When checking for PTRACE_GETRESET/SETREGSET, make sure that
-the correct header file is included. We need linux/ptrace.h
-which contains all ptrace UAPI related defines.
-Otherwise #if defined(PTRACE_GETRESET) is always false.
-
-Cc: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/x86/um/user-offsets.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/arch/x86/um/user-offsets.c
-+++ b/arch/x86/um/user-offsets.c
-@@ -5,7 +5,7 @@
- #include <sys/mman.h>
- #include <sys/user.h>
- #define __FRAME_OFFSETS
--#include <asm/ptrace.h>
-+#include <linux/ptrace.h>
- #include <asm/types.h>
- 
- #ifdef __i386__

target/linux/uml/patches-4.9/003-um-Fix-check-for-_xstate-for-older-hosts.patch

@@ -1,46 +0,0 @@
-From 2fb44600fe784449404c6639de26af8361999ec7 Mon Sep 17 00:00:00 2001
-From: Florian Fainelli <f.fainelli@gmail.com>
-Date: Tue, 18 Jul 2017 16:43:47 -0700
-Subject: [PATCH] um: Fix check for _xstate for older hosts
-
-Commit 0a987645672e ("um: Allow building and running on older
-hosts") attempted to check for PTRACE_{GET,SET}REGSET under the premise
-that these ptrace(2) parameters were directly linked with the presence
-of the _xstate structure.
-
-After Richard's commit 61e8d462457f ("um: Correctly check for
-PTRACE_GETRESET/SETREGSET") which properly included linux/ptrace.h
-instead of asm/ptrace.h, we could get into the original build failure
-that I reported:
-
-arch/x86/um/user-offsets.c: In function 'foo':
-arch/x86/um/user-offsets.c:54: error: invalid application of 'sizeof' to
-incomplete type 'struct _xstate'
-
-On this particular host, we do have PTRACE_GETREGSET and
-PTRACE_SETREGSET defined in linux/ptrace.h, but not the structure
-_xstate that should be pulled from the following include chain: signal.h
--> bits/sigcontext.h.
-
-Correctly fix this by checking for FP_XSTATE_MAGIC1 which is the correct
-way to see if struct _xstate is available or not on the host.
-
-Fixes: 61e8d462457f ("um: Correctly check for PTRACE_GETRESET/SETREGSET")
-Fixes: 0a987645672e ("um: Allow building and running on older hosts")
-Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
-Signed-off-by: Richard Weinberger <richard@nod.at>
----
- arch/x86/um/user-offsets.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
---- a/arch/x86/um/user-offsets.c
-+++ b/arch/x86/um/user-offsets.c
-@@ -50,7 +50,7 @@ void foo(void)
- 	DEFINE(HOST_GS, GS);
- 	DEFINE(HOST_ORIG_AX, ORIG_EAX);
- #else
--#if defined(PTRACE_GETREGSET) && defined(PTRACE_SETREGSET)
-+#ifdef FP_XSTATE_MAGIC1
- 	DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
- #else
- 	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));