diff options
| -rw-r--r-- | arch/um/include/shared/os.h | 5 | ||||
| -rw-r--r-- | arch/um/os-Linux/Makefile | 4 | ||||
| -rw-r--r-- | arch/um/os-Linux/tls.c | 35 | ||||
| -rw-r--r-- | arch/x86/um/os-Linux/tls.c | 34 | ||||
| -rw-r--r-- | arch/x86/um/shared/sysdep/tls.h | 3 |
5 files changed, 38 insertions, 43 deletions
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h index caa66619a9b4..89b686c1a3ea 100644 --- a/arch/um/include/shared/os.h +++ b/arch/um/include/shared/os.h @@ -10,7 +10,6 @@ #include "irq_user.h" #include "longjmp.h" #include "mm_id.h" -#include "sysdep/tls.h" #define CATCH_EINTR(expr) while ((errno = 0, ((expr) < 0)) && (errno == EINTR)) @@ -212,10 +211,6 @@ extern int run_helper_thread(int (*proc)(void *), void *arg, extern int helper_wait(int pid); -/* tls.c */ -extern int os_set_thread_area(user_desc_t *info, int pid); -extern int os_get_thread_area(user_desc_t *info, int pid); - /* umid.c */ extern int umid_file_name(char *name, char *buf, int len); extern int set_umid(char *name); diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile index 015d00057663..dd764101e488 100644 --- a/arch/um/os-Linux/Makefile +++ b/arch/um/os-Linux/Makefile @@ -5,13 +5,13 @@ obj-y = aio.o execvp.o file.o helper.o irq.o main.o mem.o process.o \ registers.o sigio.o signal.o start_up.o time.o tty.o \ - umid.o tls.o user_syms.o util.o drivers/ skas/ + umid.o user_syms.o util.o drivers/ skas/ obj-$(CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA) += elf_aux.o USER_OBJS := $(user-objs-y) aio.o elf_aux.o execvp.o file.o helper.o irq.o \ main.o mem.o process.o registers.o sigio.o signal.o start_up.o time.o \ - tty.o tls.o umid.o util.o + tty.o umid.o util.o CFLAGS_user_syms.o += -DSUBARCH_$(SUBARCH) diff --git a/arch/um/os-Linux/tls.c b/arch/um/os-Linux/tls.c deleted file mode 100644 index 73277801ef14..000000000000 --- a/arch/um/os-Linux/tls.c +++ /dev/null @@ -1,35 +0,0 @@ -#include <errno.h> -#include <sys/ptrace.h> -#include "sysdep/tls.h" - -/* TLS support - we basically rely on the host's one.*/ - -#ifndef PTRACE_GET_THREAD_AREA -#define PTRACE_GET_THREAD_AREA 25 -#endif - -#ifndef PTRACE_SET_THREAD_AREA -#define PTRACE_SET_THREAD_AREA 26 -#endif - -int os_set_thread_area(user_desc_t *info, int pid) -{ - int ret; - - ret = ptrace(PTRACE_SET_THREAD_AREA, pid, info->entry_number, - (unsigned long) info); - if (ret < 0) - ret = -errno; - return ret; -} - -int os_get_thread_area(user_desc_t *info, int pid) -{ - int ret; - - ret = ptrace(PTRACE_GET_THREAD_AREA, pid, info->entry_number, - (unsigned long) info); - if (ret < 0) - ret = -errno; - return ret; -} diff --git a/arch/x86/um/os-Linux/tls.c b/arch/x86/um/os-Linux/tls.c index 281e83ecce3d..82276b6071af 100644 --- a/arch/x86/um/os-Linux/tls.c +++ b/arch/x86/um/os-Linux/tls.c @@ -1,15 +1,25 @@ #include <errno.h> #include <linux/unistd.h> +#include <sys/ptrace.h> #include <sys/syscall.h> #include <unistd.h> #include "sysdep/tls.h" +#ifndef PTRACE_GET_THREAD_AREA +#define PTRACE_GET_THREAD_AREA 25 +#endif + +#ifndef PTRACE_SET_THREAD_AREA +#define PTRACE_SET_THREAD_AREA 26 +#endif + /* Checks whether host supports TLS, and sets *tls_min according to the value * valid on the host. * i386 host have it == 6; x86_64 host have it == 12, for i386 emulation. */ -void check_host_supports_tls(int *supports_tls, int *tls_min) { +void check_host_supports_tls(int *supports_tls, int *tls_min) +{ /* Values for x86 and x86_64.*/ int val[] = {GDT_ENTRY_TLS_MIN_I386, GDT_ENTRY_TLS_MIN_X86_64}; int i; @@ -33,3 +43,25 @@ void check_host_supports_tls(int *supports_tls, int *tls_min) { *supports_tls = 0; } + +int os_set_thread_area(user_desc_t *info, int pid) +{ + int ret; + + ret = ptrace(PTRACE_SET_THREAD_AREA, pid, info->entry_number, + (unsigned long) info); + if (ret < 0) + ret = -errno; + return ret; +} + +int os_get_thread_area(user_desc_t *info, int pid) +{ + int ret; + + ret = ptrace(PTRACE_GET_THREAD_AREA, pid, info->entry_number, + (unsigned long) info); + if (ret < 0) + ret = -errno; + return ret; +} diff --git a/arch/x86/um/shared/sysdep/tls.h b/arch/x86/um/shared/sysdep/tls.h index db2ae9c12e23..f2f30bd67b9b 100644 --- a/arch/x86/um/shared/sysdep/tls.h +++ b/arch/x86/um/shared/sysdep/tls.h @@ -29,6 +29,9 @@ typedef struct user_desc user_desc_t; # endif /* __KERNEL__ */ +extern int os_set_thread_area(user_desc_t *info, int pid); +extern int os_get_thread_area(user_desc_t *info, int pid); + #ifdef __i386__ #define GDT_ENTRY_TLS_MIN_I386 6 #define GDT_ENTRY_TLS_MIN_X86_64 12 |