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authorLinus Torvalds <torvalds@linux-foundation.org>2017-09-16 22:03:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-16 22:03:25 +0300
commit2896b80e002df4ab268577c1eb806d7f7ebaf95e (patch)
treebb08d53768b9c45be82a6833e9b093e751690087 /arch/um/include
parent48bddb143befb1dd93c0e5a66af62cfd60c86b04 (diff)
parent6d20e6b235aad0be463b23588093b079362bb2e4 (diff)
downloadlinux-2896b80e002df4ab268577c1eb806d7f7ebaf95e.tar.xz
Merge branch 'for-linus-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger: - minor improvements - fixes for Debian's new gcc defaults (pie enabled by default) - fixes for XSTATE/XSAVE to make UML work again on modern systems * 'for-linus-4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: return negative in tuntap_open_tramp() um: remove a stray tab um: Use relative modversions with LD_SCRIPT_DYN um: link vmlinux with -no-pie um: Fix CONFIG_GCOV for modules. Fix minor typos and grammar in UML start_up help um: defconfig: Cleanup from old Kconfig options um: Fix FP register size for XSTATE/XSAVE
Diffstat (limited to 'arch/um/include')
-rw-r--r--arch/um/include/asm/thread_info.h3
-rw-r--r--arch/um/include/shared/os.h2
2 files changed, 4 insertions, 1 deletions
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/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));