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-rw-r--r--arch/um/Makefile2
-rw-r--r--arch/um/Makefile-i3861
-rw-r--r--arch/um/drivers/cow.h4
-rw-r--r--arch/um/drivers/hostaudio_kern.c4
-rw-r--r--arch/um/kernel/helper.c14
-rw-r--r--arch/um/kernel/process.c35
-rw-r--r--arch/um/kernel/skas/syscall_user.c4
-rw-r--r--arch/um/kernel/um_arch.c19
-rw-r--r--arch/um/os-Linux/elf_aux.c1
9 files changed, 55 insertions, 29 deletions
diff --git a/arch/um/Makefile b/arch/um/Makefile
index eb4ac403bd9..f5a83a72aa7 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -245,7 +245,7 @@ $(ARCH_DIR)/util: scripts_basic $(SYS_DIR)/sc.h $(ARCH_DIR)/kernel-offsets.h FOR
$(ARCH_DIR)/kernel/skas/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE
$(Q)$(MAKE) $(build)=$@
-$(ARCH_DIR)/os-$(OS)/util: scripts_basic FORCE
+$(ARCH_DIR)/os-$(OS)/util: scripts_basic $(ARCH_DIR)/user-offsets.h FORCE
$(Q)$(MAKE) $(build)=$@
export SUBARCH USER_CFLAGS OS
diff --git a/arch/um/Makefile-i386 b/arch/um/Makefile-i386
index 93d0818fa81..a777e57dbf8 100644
--- a/arch/um/Makefile-i386
+++ b/arch/um/Makefile-i386
@@ -33,6 +33,7 @@ ifneq ($(CONFIG_GPROF),y)
ARCH_CFLAGS += -DUM_FASTCALL
endif
+SYS_UTIL_DIR := $(ARCH_DIR)/sys-i386/util
SYS_HEADERS := $(SYS_DIR)/sc.h $(SYS_DIR)/thread.h
prepare: $(SYS_HEADERS)
diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h
index 4fcbe8b1b77..4fcf3a8d13f 100644
--- a/arch/um/drivers/cow.h
+++ b/arch/um/drivers/cow.h
@@ -3,10 +3,10 @@
#include <asm/types.h>
-#if __BYTE_ORDER == __BIG_ENDIAN
+#if defined(__BIG_ENDIAN)
# define ntohll(x) (x)
# define htonll(x) (x)
-#elif __BYTE_ORDER == __LITTLE_ENDIAN
+#elif defined(__LITTLE_ENDIAN)
# define ntohll(x) bswap_64(x)
# define htonll(x) bswap_64(x)
#else
diff --git a/arch/um/drivers/hostaudio_kern.c b/arch/um/drivers/hostaudio_kern.c
index d5742783e19..59602b81b24 100644
--- a/arch/um/drivers/hostaudio_kern.c
+++ b/arch/um/drivers/hostaudio_kern.c
@@ -57,10 +57,10 @@ __uml_setup("mixer=", set_mixer, "mixer=<mixer device>\n" MIXER_HELP);
#else /*MODULE*/
-MODULE_PARM(dsp, "s");
+module_param(dsp, charp, 0644);
MODULE_PARM_DESC(dsp, DSP_HELP);
-MODULE_PARM(mixer, "s");
+module_param(mixer, charp, 0644);
MODULE_PARM_DESC(mixer, MIXER_HELP);
#endif
diff --git a/arch/um/kernel/helper.c b/arch/um/kernel/helper.c
index 13b1f5c2f7e..f83e1e8e239 100644
--- a/arch/um/kernel/helper.c
+++ b/arch/um/kernel/helper.c
@@ -13,6 +13,7 @@
#include "user.h"
#include "kern_util.h"
#include "user_util.h"
+#include "helper.h"
#include "os.h"
struct helper_data {
@@ -149,7 +150,7 @@ int run_helper_thread(int (*proc)(void *), void *arg, unsigned int flags,
return(pid);
}
-int helper_wait(int pid, int block)
+int helper_wait(int pid)
{
int ret;
@@ -160,14 +161,3 @@ int helper_wait(int pid, int block)
}
return(ret);
}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only. This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index c45a60e9c92..8b01a5584e8 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -212,12 +212,26 @@ static int stop_ptraced_child(int pid, int exitcode, int mustexit)
static int force_sysemu_disabled = 0;
+int ptrace_faultinfo = 1;
+int proc_mm = 1;
+
+static int __init skas0_cmd_param(char *str, int* add)
+{
+ ptrace_faultinfo = proc_mm = 0;
+ return 0;
+}
+
static int __init nosysemu_cmd_param(char *str, int* add)
{
force_sysemu_disabled = 1;
return 0;
}
+__uml_setup("skas0", skas0_cmd_param,
+ "skas0\n"
+ " Disables SKAS3 usage, so that SKAS0 is used, unless you \n"
+ " specify mode=tt.\n\n");
+
__uml_setup("nosysemu", nosysemu_cmd_param,
"nosysemu\n"
" Turns off syscall emulation patch for ptrace (SYSEMU) on.\n"
@@ -359,12 +373,10 @@ void forward_pending_sigio(int target)
kill(target, SIGIO);
}
-int ptrace_faultinfo = 0;
-int proc_mm = 1;
-
extern void *__syscall_stub_start, __syscall_stub_end;
#ifdef UML_CONFIG_MODE_SKAS
+
static inline void check_skas3_ptrace_support(void)
{
struct ptrace_faultinfo fi;
@@ -375,6 +387,7 @@ static inline void check_skas3_ptrace_support(void)
n = ptrace(PTRACE_FAULTINFO, pid, 0, &fi);
if (n < 0) {
+ ptrace_faultinfo = 0;
if(errno == EIO)
printf("not found\n");
else {
@@ -382,8 +395,10 @@ static inline void check_skas3_ptrace_support(void)
}
}
else {
- ptrace_faultinfo = 1;
- printf("found\n");
+ if (!ptrace_faultinfo)
+ printf("found but disabled on command line\n");
+ else
+ printf("found\n");
}
init_registers(pid);
@@ -396,13 +411,13 @@ int can_do_skas(void)
if (os_access("/proc/mm", OS_ACC_W_OK) < 0) {
proc_mm = 0;
printf("not found\n");
- goto out;
- }
- else {
- printf("found\n");
+ } else {
+ if (!proc_mm)
+ printf("found but disabled on command line\n");
+ else
+ printf("found\n");
}
-out:
check_skas3_ptrace_support();
return 1;
}
diff --git a/arch/um/kernel/skas/syscall_user.c b/arch/um/kernel/skas/syscall_user.c
index 2828e6e3772..6b066497014 100644
--- a/arch/um/kernel/skas/syscall_user.c
+++ b/arch/um/kernel/skas/syscall_user.c
@@ -15,7 +15,7 @@
void handle_syscall(union uml_pt_regs *regs)
{
long result;
-#if UML_CONFIG_SYSCALL_DEBUG
+#ifdef UML_CONFIG_SYSCALL_DEBUG
int index;
index = record_syscall_start(UPT_SYSCALL_NR(regs));
@@ -27,7 +27,7 @@ void handle_syscall(union uml_pt_regs *regs)
REGS_SET_SYSCALL_RETURN(regs->skas.regs, result);
syscall_trace(regs, 1);
-#if UML_CONFIG_SYSCALL_DEBUG
+#ifdef UML_CONFIG_SYSCALL_DEBUG
record_syscall_end(index, result);
#endif
}
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 8736d098f0e..ca2bb6f09a7 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -38,6 +38,9 @@
#include "choose-mode.h"
#include "mode_kern.h"
#include "mode.h"
+#ifdef UML_CONFIG_MODE_SKAS
+#include "skas.h"
+#endif
#define DEFAULT_COMMAND_LINE "root=98:0"
@@ -318,6 +321,7 @@ int linux_main(int argc, char **argv)
unsigned long avail, diff;
unsigned long virtmem_size, max_physmem;
unsigned int i, add;
+ char * mode;
for (i = 1; i < argc; i++){
if((i == 1) && (argv[i][0] == ' ')) continue;
@@ -338,6 +342,21 @@ int linux_main(int argc, char **argv)
exit(1);
}
#endif
+
+#ifndef CONFIG_MODE_SKAS
+ mode = "TT";
+#else
+ /* Show to the user the result of selection */
+ if (mode_tt)
+ mode = "TT";
+ else if (proc_mm && ptrace_faultinfo)
+ mode = "SKAS3";
+ else
+ mode = "SKAS0";
+#endif
+
+ printf("UML running in %s mode\n", mode);
+
uml_start = CHOOSE_MODE_PROC(set_task_sizes_tt, set_task_sizes_skas, 0,
&host_task_size, &task_size);
diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c
index f0d6060e3e5..5423b1ca17c 100644
--- a/arch/um/os-Linux/elf_aux.c
+++ b/arch/um/os-Linux/elf_aux.c
@@ -11,6 +11,7 @@
#include <stddef.h>
#include "init.h"
#include "elf_user.h"
+#include <asm/elf.h>
#if ELF_CLASS == ELFCLASS32
typedef Elf32_auxv_t elf_auxv_t;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 10:19:29 +0000