diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-07 12:00:25 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-01-07 12:00:25 -0800 |
commit | 5bb47b9ff3d16d40f8d45380b373497a545fa280 (patch) | |
tree | e13dd34395473342dc75eff5cbaf5b1ea753631c /arch/blackfin/kernel/kgdb_test.c | |
parent | 2f2408a88cf8fa43febfd7fb5783e61b2937b0f9 (diff) | |
parent | 06af15e086e39a5a2a2413973a64af8e10122f28 (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (171 commits)
Blackfin arch: fix bug - BF527 0.2 silicon has different CPUID (DSPID) value
Blackfin arch: Enlarge flash partition for kenel for bf533/bf537 boards
Blackfin arch: fix bug: kernel crash when enable SDIO host driver
Blackfin arch: Print FP at level KERN_NOTICE
Blackfin arch: drop ad73311 test code
Blackfin arch: update board default configs
Blackfin arch: Set PB4 as the default irq for bf548 board v1.4+.
Blackfin arch: fix typo in early printk bit size processing
Blackfin arch: enable reprogram cclk and sclk for bf518f-ezbrd
Blackfin arch: add SDIO host driver platform data
Blackfin arch: fix bug - kernel stops at initial console
Blackfin arch: fix bug - kernel crash after config IP for ethernet port
Blackfin arch: add sdh support for bf518f-ezbrd
Blackfin arch: fix bug - kernel detects BF532 incorrectly
Blackfin arch: add () to avoid warnings from gcc
Blackfin arch: change HWTRACE Kconfig and set it on default
Blackfin arch: Clean oprofile build path for blackfin
Blackfin arch: remove hardware PM code, oprofile not use it
Blackfin arch: rewrite get_sclk()/get_vco()
Blackfin arch: cleanup and unify the ins functions
...
Diffstat (limited to 'arch/blackfin/kernel/kgdb_test.c')
-rw-r--r-- | arch/blackfin/kernel/kgdb_test.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/kgdb_test.c b/arch/blackfin/kernel/kgdb_test.c new file mode 100644 index 00000000000..3dba9c17304 --- /dev/null +++ b/arch/blackfin/kernel/kgdb_test.c @@ -0,0 +1,123 @@ +/* + * arch/blackfin/kernel/kgdb_test.c - Blackfin kgdb tests + * + * Copyright 2005-2008 Analog Devices Inc. + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/proc_fs.h> + +#include <asm/current.h> +#include <asm/uaccess.h> +#include <asm/system.h> + +#include <asm/blackfin.h> + +static char cmdline[256]; +static unsigned long len; + +static int num1 __attribute__((l1_data)); + +void kgdb_l1_test(void) __attribute__((l1_text)); + +void kgdb_l1_test(void) +{ + printk(KERN_ALERT "L1(before change) : data variable addr = 0x%p, data value is %d\n", &num1, num1); + printk(KERN_ALERT "L1 : code function addr = 0x%p\n", kgdb_l1_test); + num1 = num1 + 10 ; + printk(KERN_ALERT "L1(after change) : data variable addr = 0x%p, data value is %d\n", &num1, num1); + return ; +} +#if L2_LENGTH + +static int num2 __attribute__((l2)); +void kgdb_l2_test(void) __attribute__((l2)); + +void kgdb_l2_test(void) +{ + printk(KERN_ALERT "L2(before change) : data variable addr = 0x%p, data value is %d\n", &num2, num2); + printk(KERN_ALERT "L2 : code function addr = 0x%p\n", kgdb_l2_test); + num2 = num2 + 20 ; + printk(KERN_ALERT "L2(after change) : data variable addr = 0x%p, data value is %d\n", &num2, num2); + return ; +} + +#endif + + +int kgdb_test(char *name, int len, int count, int z) +{ + printk(KERN_DEBUG "kgdb name(%d): %s, %d, %d\n", len, name, count, z); + count = z; + return count; +} + +static int test_proc_output(char *buf) +{ + kgdb_test("hello world!", 12, 0x55, 0x10); + kgdb_l1_test(); + #if L2_LENGTH + kgdb_l2_test(); + #endif + + return 0; +} + +static int test_read_proc(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + int len; + + len = test_proc_output(page); + if (len <= off+count) + *eof = 1; + *start = page + off; + len -= off; + if (len > count) + len = count; + if (len < 0) + len = 0; + return len; +} + +static int test_write_proc(struct file *file, const char *buffer, + unsigned long count, void *data) +{ + if (count >= 256) + len = 255; + else + len = count; + + memcpy(cmdline, buffer, count); + cmdline[len] = 0; + + return len; +} + +static int __init kgdbtest_init(void) +{ + struct proc_dir_entry *entry; + + entry = create_proc_entry("kgdbtest", 0, NULL); + if (entry == NULL) + return -ENOMEM; + + entry->read_proc = test_read_proc; + entry->write_proc = test_write_proc; + entry->data = NULL; + + return 0; +} + +static void __exit kgdbtest_exit(void) +{ + remove_proc_entry("kgdbtest", NULL); +} + +module_init(kgdbtest_init); +module_exit(kgdbtest_exit); +MODULE_LICENSE("GPL"); |