diff options
Diffstat (limited to 'arch/um')
52 files changed, 86 insertions, 35 deletions
diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char index f10738d68b2d..f184bde7030e 100644 --- a/arch/um/Kconfig.char +++ b/arch/um/Kconfig.char @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 menu "UML Character Devices" config STDERR_CONSOLE diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common index 85f6dd204ab6..d9280482a2f8 100644 --- a/arch/um/Kconfig.common +++ b/arch/um/Kconfig.common @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 config UML bool default y diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug index 68205fd3b08c..967d3109689f 100644 --- a/arch/um/Kconfig.debug +++ b/arch/um/Kconfig.debug @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 menu "Kernel hacking" source "lib/Kconfig.debug" diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net index 820a56f00332..e871af24d9cd 100644 --- a/arch/um/Kconfig.net +++ b/arch/um/Kconfig.net @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 menu "UML Network Devices" depends on NET diff --git a/arch/um/Kconfig.rest b/arch/um/Kconfig.rest index 567eb5fc21df..08327b9c0cbe 100644 --- a/arch/um/Kconfig.rest +++ b/arch/um/Kconfig.rest @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 source "init/Kconfig" source "kernel/Kconfig.freezer" diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um index 4b2ed5858b2e..3e7f228b22e1 100644 --- a/arch/um/Kconfig.um +++ b/arch/um/Kconfig.um @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 config STATIC_LINK bool "Force a static link" default n @@ -20,6 +21,7 @@ config LD_SCRIPT_DYN bool default y depends on !LD_SCRIPT_STATIC + select MODULE_REL_CRCS if MODVERSIONS source "fs/Kconfig.binfmt" diff --git a/arch/um/Makefile b/arch/um/Makefile index 6ca4f66085c1..b76fcce397a1 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -121,7 +121,7 @@ archheaders: archprepare: include/generated/user_constants.h LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static -LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib +LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib $(call cc-option, -no-pie) CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \ $(call cc-option, -fno-stack-protector,) \ diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig index 5636221b8785..8f114e3b0a7a 100644 --- a/arch/um/configs/i386_defconfig +++ b/arch/um/configs/i386_defconfig @@ -53,7 +53,6 @@ CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UML_NET=y CONFIG_UML_NET_ETHERTAP=y diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig index 7a67b7ac1a7e..5d0875fc0db2 100644 --- a/arch/um/configs/x86_64_defconfig +++ b/arch/um/configs/x86_64_defconfig @@ -51,7 +51,6 @@ CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_INET=y -# CONFIG_INET_LRO is not set # CONFIG_IPV6 is not set CONFIG_UML_NET=y CONFIG_UML_NET_ETHERTAP=y diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h index 6673508f3426..760c507dd5b6 100644 --- a/arch/um/drivers/cow.h +++ b/arch/um/drivers/cow.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __COW_H__ #define __COW_H__ diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h index 67cbee63e702..916811ef5317 100644 --- a/arch/um/drivers/cow_sys.h +++ b/arch/um/drivers/cow_sys.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __COW_SYS_H__ #define __COW_SYS_H__ diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index af326fb6510d..c4d162a94be9 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -148,12 +148,7 @@ void mconsole_proc(struct mc_request *req) } do { - loff_t pos = file->f_pos; - mm_segment_t old_fs = get_fs(); - set_fs(KERNEL_DS); - len = vfs_read(file, buf, PAGE_SIZE - 1, &pos); - set_fs(old_fs); - file->f_pos = pos; + len = kernel_read(file, buf, PAGE_SIZE - 1, &file->f_pos); if (len < 0) { mconsole_reply(req, "Read of file failed", 1, 0); goto out_free; diff --git a/arch/um/drivers/slip.h b/arch/um/drivers/slip.h index c64f8c61d274..0f3b7ca99465 100644 --- a/arch/um/drivers/slip.h +++ b/arch/um/drivers/slip.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_SLIP_H #define __UM_SLIP_H diff --git a/arch/um/drivers/slip_common.c b/arch/um/drivers/slip_common.c index f597fa7c91d3..20fe4f42743d 100644 --- a/arch/um/drivers/slip_common.c +++ b/arch/um/drivers/slip_common.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <string.h> #include "slip_common.h" #include <net_user.h> diff --git a/arch/um/drivers/slip_common.h b/arch/um/drivers/slip_common.h index d574e0a9dc13..d3798b5caf7f 100644 --- a/arch/um/drivers/slip_common.h +++ b/arch/um/drivers/slip_common.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_SLIP_COMMON_H #define __UM_SLIP_COMMON_H diff --git a/arch/um/drivers/slirp.h b/arch/um/drivers/slirp.h index 89ccf83b7577..4aef2b88249a 100644 --- a/arch/um/drivers/slirp.h +++ b/arch/um/drivers/slirp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_SLIRP_H #define __UM_SLIRP_H diff --git a/arch/um/drivers/stderr_console.c b/arch/um/drivers/stderr_console.c index d07a97f8b994..ecc3a5814932 100644 --- a/arch/um/drivers/stderr_console.c +++ b/arch/um/drivers/stderr_console.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/kernel.h> #include <linux/init.h> #include <linux/console.h> diff --git a/arch/um/include/asm/bugs.h b/arch/um/include/asm/bugs.h index 6a72e240d5fc..4473942a0839 100644 --- a/arch/um/include/asm/bugs.h +++ b/arch/um/include/asm/bugs.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_BUGS_H #define __UM_BUGS_H diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h index 19e1bdd67416..5c156273484b 100644 --- a/arch/um/include/asm/cache.h +++ b/arch/um/include/asm/cache.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_CACHE_H #define __UM_CACHE_H diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S index 9e6d5997cfc4..b30d73ca29d0 100644 --- a/arch/um/include/asm/common.lds.S +++ b/arch/um/include/asm/common.lds.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <asm-generic/vmlinux.lds.h> .fini : { *(.fini) } =0x9090 diff --git a/arch/um/include/asm/dma.h b/arch/um/include/asm/dma.h index f88c5860520b..fdc53642c718 100644 --- a/arch/um/include/asm/dma.h +++ b/arch/um/include/asm/dma.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_DMA_H #define __UM_DMA_H diff --git a/arch/um/include/asm/fixmap.h b/arch/um/include/asm/fixmap.h index 1761fd75bf13..2c697a145ac1 100644 --- a/arch/um/include/asm/fixmap.h +++ b/arch/um/include/asm/fixmap.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_FIXMAP_H #define __UM_FIXMAP_H diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h index 756f0778e327..b426796d26fd 100644 --- a/arch/um/include/asm/hardirq.h +++ b/arch/um/include/asm/hardirq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_UM_HARDIRQ_H #define __ASM_UM_HARDIRQ_H diff --git a/arch/um/include/asm/io.h b/arch/um/include/asm/io.h index 8f35d574f35b..96f77b5232aa 100644 --- a/arch/um/include/asm/io.h +++ b/arch/um/include/asm/io.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_UM_IO_H #define _ASM_UM_IO_H diff --git a/arch/um/include/asm/irq.h b/arch/um/include/asm/irq.h index 4a2037f8204b..b5cdd3f91157 100644 --- a/arch/um/include/asm/irq.h +++ b/arch/um/include/asm/irq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_IRQ_H #define __UM_IRQ_H diff --git a/arch/um/include/asm/irqflags.h b/arch/um/include/asm/irqflags.h index 3bb221e1d5a4..cbc6c0013a64 100644 --- a/arch/um/include/asm/irqflags.h +++ b/arch/um/include/asm/irqflags.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_IRQFLAGS_H #define __UM_IRQFLAGS_H diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h index f6d1a3f747a9..86942a492454 100644 --- a/arch/um/include/asm/processor-generic.h +++ b/arch/um/include/asm/processor-generic.h @@ -58,11 +58,6 @@ static inline void release_thread(struct task_struct *task) { } -static inline void mm_copy_segments(struct mm_struct *from_mm, - struct mm_struct *new_mm) -{ -} - #define init_stack (init_thread_union.stack) /* diff --git a/arch/um/include/asm/sections.h b/arch/um/include/asm/sections.h index cafcf684d947..a3c1fb6ed6ad 100644 --- a/arch/um/include/asm/sections.h +++ b/arch/um/include/asm/sections.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_SECTIONS_H #define __UM_SECTIONS_H diff --git a/arch/um/include/asm/setup.h b/arch/um/include/asm/setup.h index 99f086301f4c..80ada899f254 100644 --- a/arch/um/include/asm/setup.h +++ b/arch/um/include/asm/setup.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef SETUP_H_INCLUDED #define SETUP_H_INCLUDED diff --git a/arch/um/include/asm/smp.h b/arch/um/include/asm/smp.h index 9c3be355ed01..a8cc1d46ddcb 100644 --- a/arch/um/include/asm/smp.h +++ b/arch/um/include/asm/smp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_SMP_H #define __UM_SMP_H diff --git a/arch/um/include/asm/stacktrace.h b/arch/um/include/asm/stacktrace.h index 9a864328c67f..436b55952c3a 100644 --- a/arch/um/include/asm/stacktrace.h +++ b/arch/um/include/asm/stacktrace.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_UML_STACKTRACE_H #define _ASM_UML_STACKTRACE_H diff --git a/arch/um/include/asm/sysrq.h b/arch/um/include/asm/sysrq.h index c8d332b56b98..8fc8c65cd357 100644 --- a/arch/um/include/asm/sysrq.h +++ b/arch/um/include/asm/sysrq.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_SYSRQ_H #define __UM_SYSRQ_H diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h index 053baff03674..9300f7630d2a 100644 --- a/arch/um/include/asm/thread_info.h +++ b/arch/um/include/asm/thread_info.h @@ -11,6 +11,7 @@ #include <asm/types.h> #include <asm/page.h> #include <asm/segment.h> +#include <sysdep/ptrace_user.h> struct thread_info { struct task_struct *task; /* main task structure */ @@ -22,6 +23,8 @@ struct thread_info { 0-0xBFFFFFFF for user 0-0xFFFFFFFF for kernel */ struct thread_info *real_thread; /* Points to non-IRQ stack */ + unsigned long aux_fp_regs[FP_SIZE]; /* auxiliary fp_regs to save/restore + them out-of-band */ }; #define INIT_THREAD_INFO(tsk) \ diff --git a/arch/um/include/asm/timex.h b/arch/um/include/asm/timex.h index 0f4ada08f748..e392a9a5bc9b 100644 --- a/arch/um/include/asm/timex.h +++ b/arch/um/include/asm/timex.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_TIMEX_H #define __UM_TIMEX_H diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h index 600a2e9bfee2..dce6db147f24 100644 --- a/arch/um/include/asm/tlb.h +++ b/arch/um/include/asm/tlb.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UM_TLB_H #define __UM_TLB_H @@ -45,7 +46,8 @@ static inline void init_tlb_gather(struct mmu_gather *tlb) } static inline void -tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end) +arch_tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, + unsigned long start, unsigned long end) { tlb->mm = mm; tlb->start = start; @@ -80,13 +82,19 @@ tlb_flush_mmu(struct mmu_gather *tlb) tlb_flush_mmu_free(tlb); } -/* tlb_finish_mmu +/* arch_tlb_finish_mmu * Called at the end of the shootdown operation to free up any resources * that were required. */ static inline void -tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) +arch_tlb_finish_mmu(struct mmu_gather *tlb, + unsigned long start, unsigned long end, bool force) { + if (force) { + tlb->start = start; + tlb->end = end; + tlb->need_flush = 1; + } tlb_flush_mmu(tlb); /* keep the page table cache within bounds */ diff --git a/arch/um/include/asm/unwind.h b/arch/um/include/asm/unwind.h new file mode 100644 index 000000000000..7ffa5437b761 --- /dev/null +++ b/arch/um/include/asm/unwind.h @@ -0,0 +1,8 @@ +#ifndef _ASM_UML_UNWIND_H +#define _ASM_UML_UNWIND_H + +static inline void +unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size, + void *orc, size_t orc_size) {} + +#endif /* _ASM_UML_UNWIND_H */ diff --git a/arch/um/include/shared/common-offsets.h b/arch/um/include/shared/common-offsets.h index c92306809029..4e99fe05576a 100644 --- a/arch/um/include/shared/common-offsets.h +++ b/arch/um/include/shared/common-offsets.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* for use by sys-$SUBARCH/kernel-offsets.c */ DEFINE(KERNEL_MADV_REMOVE, MADV_REMOVE); diff --git a/arch/um/include/shared/init.h b/arch/um/include/shared/init.h index 233e2593eee0..390572daa40d 100644 --- a/arch/um/include/shared/init.h +++ b/arch/um/include/shared/init.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_UML_INIT_H #define _LINUX_UML_INIT_H diff --git a/arch/um/include/shared/longjmp.h b/arch/um/include/shared/longjmp.h index 9bdddf4c405b..b3315c1f198b 100644 --- a/arch/um/include/shared/longjmp.h +++ b/arch/um/include/shared/longjmp.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __UML_LONGJMP_H #define __UML_LONGJMP_H diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h index 574e03fc7ba2..d8ddaf9790d2 100644 --- a/arch/um/include/shared/os.h +++ b/arch/um/include/shared/os.h @@ -278,7 +278,7 @@ extern int protect(struct mm_id * mm_idp, unsigned long addr, extern int is_skas_winch(int pid, int fd, void *data); extern int start_userspace(unsigned long stub_stack); extern int copy_context_skas0(unsigned long stack, int pid); -extern void userspace(struct uml_pt_regs *regs); +extern void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs); extern int map_stub_pages(int fd, unsigned long code, unsigned long data, unsigned long stack); extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void)); diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S index 4fdbcf958cd5..d417e3899700 100644 --- a/arch/um/kernel/dyn.lds.S +++ b/arch/um/kernel/dyn.lds.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <asm-generic/vmlinux.lds.h> #include <asm/page.h> diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c index 1bf61266da8e..f138a4a0db99 100644 --- a/arch/um/kernel/gmon_syms.c +++ b/arch/um/kernel/gmon_syms.c @@ -7,3 +7,10 @@ extern void __bb_init_func(void *) __attribute__((weak)); EXPORT_SYMBOL(__bb_init_func); + +extern void __gcov_init(void *) __attribute__((weak)); +EXPORT_SYMBOL(__gcov_init); +extern void __gcov_merge_add(void *, unsigned int) __attribute__((weak)); +EXPORT_SYMBOL(__gcov_merge_add); +extern void __gcov_exit(void) __attribute__((weak)); +EXPORT_SYMBOL(__gcov_exit); diff --git a/arch/um/kernel/kmsg_dump.c b/arch/um/kernel/kmsg_dump.c index 407d49251d6f..98bdf69e4c2e 100644 --- a/arch/um/kernel/kmsg_dump.c +++ b/arch/um/kernel/kmsg_dump.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/kmsg_dump.h> #include <linux/console.h> #include <shared/init.h> diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c index 2c7f721eccbc..691b83b10649 100644 --- a/arch/um/kernel/process.c +++ b/arch/um/kernel/process.c @@ -131,7 +131,7 @@ void new_thread_handler(void) * callback returns only if the kernel thread execs a process */ n = fn(arg); - userspace(¤t->thread.regs.regs); + userspace(¤t->thread.regs.regs, current_thread_info()->aux_fp_regs); } /* Called magically, see new_thread_handler above */ @@ -150,7 +150,7 @@ void fork_handler(void) current->thread.prev_sched = NULL; - userspace(¤t->thread.regs.regs); + userspace(¤t->thread.regs.regs, current_thread_info()->aux_fp_regs); } int copy_thread(unsigned long clone_flags, unsigned long sp, diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c index 0b034ebbda2a..7f69d17de354 100644 --- a/arch/um/kernel/time.c +++ b/arch/um/kernel/time.c @@ -98,7 +98,7 @@ static struct clocksource timer_clocksource = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static void __init timer_setup(void) +static void __init um_timer_setup(void) { int err; @@ -132,5 +132,5 @@ void read_persistent_clock(struct timespec *ts) void __init time_init(void) { timer_set_signal_handler(); - late_time_init = timer_setup; + late_time_init = um_timer_setup; } diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S index 1840f55ed042..3d6ed6ba5b78 100644 --- a/arch/um/kernel/uml.lds.S +++ b/arch/um/kernel/uml.lds.S @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #include <asm-generic/vmlinux.lds.h> #include <asm/page.h> diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c index c2e6e1dad876..db24ce0d09a6 100644 --- a/arch/um/os-Linux/drivers/tuntap_user.c +++ b/arch/um/os-Linux/drivers/tuntap_user.c @@ -80,7 +80,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote, pid = run_helper(tuntap_pre_exec, &data, argv); if (pid < 0) - return -pid; + return pid; close(remote); diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c index 1a365ddc4d02..77a9321379b7 100644 --- a/arch/um/os-Linux/elf_aux.c +++ b/arch/um/os-Linux/elf_aux.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * arch/um/kernel/elf_aux.c * diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 819d68656673..c94c3bd70ccd 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -88,12 +88,11 @@ bad_wait: extern unsigned long current_stub_stack(void); -static void get_skas_faultinfo(int pid, struct faultinfo *fi) +static void get_skas_faultinfo(int pid, struct faultinfo *fi, unsigned long *aux_fp_regs) { int err; - unsigned long fpregs[FP_SIZE]; - err = get_fp_registers(pid, fpregs); + err = get_fp_registers(pid, aux_fp_regs); if (err < 0) { printk(UM_KERN_ERR "save_fp_registers returned %d\n", err); @@ -113,7 +112,7 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi) */ memcpy(fi, (void *)current_stub_stack(), sizeof(*fi)); - err = put_fp_registers(pid, fpregs); + err = put_fp_registers(pid, aux_fp_regs); if (err < 0) { printk(UM_KERN_ERR "put_fp_registers returned %d\n", err); @@ -121,9 +120,9 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi) } } -static void handle_segv(int pid, struct uml_pt_regs * regs) +static void handle_segv(int pid, struct uml_pt_regs *regs, unsigned long *aux_fp_regs) { - get_skas_faultinfo(pid, ®s->faultinfo); + get_skas_faultinfo(pid, ®s->faultinfo, aux_fp_regs); segv(regs->faultinfo, 0, 1, NULL); } @@ -332,7 +331,7 @@ int start_userspace(unsigned long stub_stack) return err; } -void userspace(struct uml_pt_regs *regs) +void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs) { int err, status, op, pid = userspace_pid[0]; /* To prevent races if using_sysemu changes under us.*/ @@ -407,11 +406,11 @@ void userspace(struct uml_pt_regs *regs) case SIGSEGV: if (PTRACE_FULL_FAULTINFO) { get_skas_faultinfo(pid, - ®s->faultinfo); + ®s->faultinfo, aux_fp_regs); (*sig_info[SIGSEGV])(SIGSEGV, (struct siginfo *)&si, regs); } - else handle_segv(pid, regs); + else handle_segv(pid, regs, aux_fp_regs); break; case SIGTRAP + 0x80: handle_trap(pid, regs, local_using_sysemu); diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index b1b6b75c5b17..82bf5f8442ba 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -154,10 +154,10 @@ static int __init nosysemu_cmd_param(char *str, int* add) __uml_setup("nosysemu", nosysemu_cmd_param, "nosysemu\n" -" Turns off syscall emulation patch for ptrace (SYSEMU) on.\n" +" Turns off syscall emulation patch for ptrace (SYSEMU).\n" " SYSEMU is a performance-patch introduced by Laurent Vivier. It changes\n" -" behaviour of ptrace() and helps reducing host context switch rate.\n" -" To make it working, you need a kernel patch for your host, too.\n" +" behaviour of ptrace() and helps reduce host context switch rates.\n" +" To make it work, you need a kernel patch for your host, too.\n" " See http://perso.wanadoo.fr/laurent.vivier/UML/ for further \n" " information.\n\n"); diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c index db4a034aeee1..715594fe5719 100644 --- a/arch/um/os-Linux/user_syms.c +++ b/arch/um/os-Linux/user_syms.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 #include <linux/types.h> #include <linux/module.h> diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules index 15889df9b466..a4dfa7d7636e 100644 --- a/arch/um/scripts/Makefile.rules +++ b/arch/um/scripts/Makefile.rules @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # =========================================================================== # arch/um: Generic definitions # =========================================================================== |