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yaml
---
r: 54280
b: refs/heads/master
c: a5ed1ff
h: refs/heads/master
v: v3
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Jeff Dike authored and Linus Torvalds committed May 7, 2007
1 parent ba90aad commit 69e2f4a
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Showing 5 changed files with 68 additions and 84 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 11100b1dfb6e9444d54d38e822753f59ee42a7e6
refs/heads/master: a5ed1ffa6c2480cdcf3f0aa945f0b8622fe4e90b
51 changes: 25 additions & 26 deletions trunk/arch/um/kernel/um_arch.c
Original file line number Diff line number Diff line change
Expand Up @@ -63,8 +63,8 @@ struct cpuinfo_um boot_cpu_data = {

unsigned long thread_saved_pc(struct task_struct *task)
{
return(os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas,
task)));
return os_process_pc(CHOOSE_MODE_PROC(thread_pid_tt, thread_pid_skas,
task));
}

static int show_cpuinfo(struct seq_file *m, void *v)
Expand All @@ -86,7 +86,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
loops_per_jiffy/(500000/HZ),
(loops_per_jiffy/(5000/HZ)) % 100);

return(0);
return 0;
}

static void *c_start(struct seq_file *m, loff_t *pos)
Expand Down Expand Up @@ -212,12 +212,12 @@ __uml_setup("debug", no_skas_debug_setup,
#ifdef CONFIG_SMP
static int __init uml_ncpus_setup(char *line, int *add)
{
if (!sscanf(line, "%d", &ncpus)) {
printf("Couldn't parse [%s]\n", line);
return -1;
}
if (!sscanf(line, "%d", &ncpus)) {
printf("Couldn't parse [%s]\n", line);
return -1;
}

return 0;
return 0;
}

__uml_setup("ncpus=", uml_ncpus_setup,
Expand All @@ -234,7 +234,7 @@ static int force_tt = 0;
static int __init mode_tt_setup(char *line, int *add)
{
force_tt = 1;
return(0);
return 0;
}

#else
Expand All @@ -245,7 +245,7 @@ static int __init mode_tt_setup(char *line, int *add)
static int __init mode_tt_setup(char *line, int *add)
{
printf("CONFIG_MODE_TT disabled - 'mode=tt' ignored\n");
return(0);
return 0;
}

#else
Expand All @@ -256,7 +256,7 @@ static int __init mode_tt_setup(char *line, int *add)
static int __init mode_tt_setup(char *line, int *add)
{
printf("CONFIG_MODE_SKAS disabled - 'mode=tt' redundant\n");
return(0);
return 0;
}

#endif
Expand All @@ -274,16 +274,15 @@ int mode_tt = DEFAULT_TT;

static int __init Usage(char *line, int *add)
{
const char **p;
const char **p;

printf(usage_string, init_utsname()->release);
p = &__uml_help_start;
while (p < &__uml_help_end) {
printf("%s", *p);
p++;
}
p = &__uml_help_start;
while (p < &__uml_help_end) {
printf("%s", *p);
p++;
}
exit(0);

return 0;
}

Expand Down Expand Up @@ -379,8 +378,8 @@ int __init linux_main(int argc, char **argv)
set_task_sizes_skas, &task_size);

/*
* Setting up handlers to 'sig_info' struct
*/
* Setting up handlers to 'sig_info' struct
*/
os_fill_handlinfo(handlinfo_kern);

brk_start = (unsigned long) sbrk(0);
Expand All @@ -407,7 +406,7 @@ int __init linux_main(int argc, char **argv)
argv1_begin = argv[1];
argv1_end = &argv[1][strlen(argv[1])];
#endif

highmem = 0;
iomem_size = (iomem_size + PAGE_SIZE - 1) & PAGE_MASK;
max_physmem = get_kmem_end() - uml_physmem - iomem_size - MIN_VMALLOC;
Expand Down Expand Up @@ -449,12 +448,12 @@ int __init linux_main(int argc, char **argv)
printf("Kernel virtual memory size shrunk to %lu bytes\n",
virtmem_size);

uml_postsetup();
uml_postsetup();

task_protections((unsigned long) &init_thread_info);
os_flush_stdout();

return(CHOOSE_MODE(start_uml_tt(), start_uml_skas()));
return CHOOSE_MODE(start_uml_tt(), start_uml_skas());
}

extern int uml_exitcode;
Expand All @@ -467,7 +466,7 @@ static int panic_exit(struct notifier_block *self, unsigned long unused1,
bust_spinlocks(0);
uml_exitcode = 1;
machine_halt();
return(0);
return 0;
}

static struct notifier_block panic_exit_notifier = {
Expand All @@ -482,14 +481,14 @@ void __init setup_arch(char **cmdline_p)
&panic_exit_notifier);
paging_init();
strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
*cmdline_p = command_line;
*cmdline_p = command_line;
setup_hostinfo();
}

void __init check_bugs(void)
{
arch_check_bugs();
os_check_bugs();
os_check_bugs();
}

void apply_alternatives(struct alt_instr *start, struct alt_instr *end)
Expand Down
11 changes: 6 additions & 5 deletions trunk/arch/um/os-Linux/main.c
Original file line number Diff line number Diff line change
Expand Up @@ -218,7 +218,7 @@ int main(int argc, char **argv, char **envp)
ret = 1;
}
printf("\n");
return(uml_exitcode);
return uml_exitcode;
}

#define CAN_KMALLOC() \
Expand All @@ -231,7 +231,7 @@ void *__wrap_malloc(int size)
void *ret;

if(!CAN_KMALLOC())
return(__real_malloc(size));
return __real_malloc(size);
else if(size <= PAGE_SIZE) /* finding contiguos pages can be hard*/
ret = um_kmalloc(size);
else ret = um_vmalloc(size);
Expand All @@ -242,16 +242,17 @@ void *__wrap_malloc(int size)
if(ret == NULL)
errno = ENOMEM;

return(ret);
return ret;
}

void *__wrap_calloc(int n, int size)
{
void *ptr = __wrap_malloc(n * size);

if(ptr == NULL) return(NULL);
if(ptr == NULL)
return NULL;
memset(ptr, 0, n * size);
return(ptr);
return ptr;
}

extern void __real_free(void *);
Expand Down
54 changes: 24 additions & 30 deletions trunk/arch/um/sys-i386/bugs.c
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
/*
/*
* Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
* Licensed under the GPL
*/
Expand Down Expand Up @@ -32,21 +32,21 @@ static char token(int fd, char *buf, int len, char stop)
n = os_read_file(fd, ptr, sizeof(*ptr));
c = *ptr++;
if(n != sizeof(*ptr)){
if(n == 0) return(0);
if(n == 0)
return 0;
printk("Reading /proc/cpuinfo failed, err = %d\n", -n);
if(n < 0)
return(n);
else
return(-EIO);
return n;
else return -EIO;
}
} while((c != '\n') && (c != stop) && (ptr < end));

if(ptr == end){
printk("Failed to find '%c' in /proc/cpuinfo\n", stop);
return(-1);
return -1;
}
*(ptr - 1) = '\0';
return(c);
return c;
}

static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
Expand All @@ -58,25 +58,25 @@ static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
while(1){
c = token(fd, scratch, len - 1, ':');
if(c <= 0)
return(0);
return 0;
else if(c != ':'){
printk("Failed to find ':' in /proc/cpuinfo\n");
return(0);
return 0;
}

if(!strncmp(scratch, key, strlen(key)))
return(1);
return 1;

do {
n = os_read_file(fd, &c, sizeof(c));
if(n != sizeof(c)){
printk("Failed to find newline in "
"/proc/cpuinfo, err = %d\n", -n);
return(0);
return 0;
}
} while(c != '\n');
}
return(0);
return 0;
}

static int check_cpu_flag(char *feature, int *have_it)
Expand All @@ -96,15 +96,17 @@ static int check_cpu_flag(char *feature, int *have_it)
goto out;

c = token(fd, buf, len - 1, ' ');
if(c < 0) goto out;
if(c < 0)
goto out;
else if(c != ' '){
printk("Failed to find ' ' in /proc/cpuinfo\n");
goto out;
}

while(1){
c = token(fd, buf, len - 1, ' ');
if(c < 0) goto out;
if(c < 0)
goto out;
else if(c == '\n') break;

if(!strcmp(buf, feature)){
Expand All @@ -113,8 +115,10 @@ static int check_cpu_flag(char *feature, int *have_it)
}
}
out:
if(*have_it == 0) printk("No\n");
else if(*have_it == 1) printk("Yes\n");
if(*have_it == 0)
printk("No\n");
else if(*have_it == 1)
printk("Yes\n");
os_close_file(fd);
return 1;
}
Expand Down Expand Up @@ -166,12 +170,13 @@ int arch_handle_signal(int sig, union uml_pt_regs *regs)
/* This is testing for a cmov (0x0f 0x4x) instruction causing a
* SIGILL in init.
*/
if((sig != SIGILL) || (TASK_PID(get_current()) != 1)) return(0);
if((sig != SIGILL) || (TASK_PID(get_current()) != 1))
return 0;

if (copy_from_user_proc(tmp, (void *) UPT_IP(regs), 2))
panic("SIGILL in init, could not read instructions!\n");
if((tmp[0] != 0x0f) || ((tmp[1] & 0xf0) != 0x40))
return(0);
return 0;

if(host_has_cmov == 0)
panic("SIGILL caused by cmov, which this processor doesn't "
Expand All @@ -185,16 +190,5 @@ int arch_handle_signal(int sig, union uml_pt_regs *regs)
"implements it, boot a filesystem compiled for older "
"processors");
else panic("Bad value for host_has_cmov (%d)", host_has_cmov);
return(0);
return 0;
}

/*
* 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:
*/
34 changes: 12 additions & 22 deletions trunk/arch/um/sys-x86_64/bugs.c
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ void arch_check_bugs(void)

int arch_handle_signal(int sig, union uml_pt_regs *regs)
{
return(0);
return 0;
}

#define MAXTOKEN 64
Expand All @@ -41,21 +41,21 @@ static char token(int fd, char *buf, int len, char stop)
n = os_read_file(fd, ptr, sizeof(*ptr));
c = *ptr++;
if(n != sizeof(*ptr)){
if(n == 0) return(0);
if(n == 0)
return 0;
printk("Reading /proc/cpuinfo failed, err = %d\n", -n);
if(n < 0)
return(n);
else
return(-EIO);
return n;
else return -EIO;
}
} while((c != '\n') && (c != stop) && (ptr < end));

if(ptr == end){
printk("Failed to find '%c' in /proc/cpuinfo\n", stop);
return(-1);
return -1;
}
*(ptr - 1) = '\0';
return(c);
return c;
}

static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
Expand All @@ -67,33 +67,23 @@ static int find_cpuinfo_line(int fd, char *key, char *scratch, int len)
while(1){
c = token(fd, scratch, len - 1, ':');
if(c <= 0)
return(0);
return 0;
else if(c != ':'){
printk("Failed to find ':' in /proc/cpuinfo\n");
return(0);
return 0;
}

if(!strncmp(scratch, key, strlen(key)))
return(1);
return 1;

do {
n = os_read_file(fd, &c, sizeof(c));
if(n != sizeof(c)){
printk("Failed to find newline in "
"/proc/cpuinfo, err = %d\n", -n);
return(0);
return 0;
}
} while(c != '\n');
}
return(0);
return 0;
}

/* 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:
*/

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