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author | Mike Frysinger <vapier.adi@gmail.com> | 2009-01-07 15:14:39 (GMT) |
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committer | Bryan Wu <cooloney@kernel.org> | 2009-01-07 15:14:39 (GMT) |
commit | 459249aa2d9ae02f49479a2096e5372ccc29c9be (patch) | |
tree | 9da223c667b0446f97dd2ac872dfddc0c76d0979 /arch/blackfin | |
parent | dbdf20db537a5369c65330f878ad4905020a8bfa (diff) | |
download | linux-fsl-qoriq-459249aa2d9ae02f49479a2096e5372ccc29c9be.tar.xz |
Blackfin arch: merge kgdb test code using common CONFIG_KGDB_TESTS
[Grace Pan <grace.pan@analog.com>: Add case for kgdb test in l1 and l2]
Signed-off-by: Grace Pan <grace.pan@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r-- | arch/blackfin/Kconfig.debug | 8 | ||||
-rw-r--r-- | arch/blackfin/kernel/Makefile | 1 | ||||
-rw-r--r-- | arch/blackfin/kernel/kgdb_test.c | 123 |
3 files changed, 131 insertions, 1 deletions
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug index bfd712a..c8ff41e 100644 --- a/arch/blackfin/Kconfig.debug +++ b/arch/blackfin/Kconfig.debug @@ -19,7 +19,13 @@ config DEBUG_STACK_USAGE This option will slow down process creation somewhat. config HAVE_ARCH_KGDB - def_bool y + def_bool y + +config KGDB_TESTCASE + tristate "KGDB: for test case in expect" + default n + help + This is a kgdb test case for automated testing. config DEBUG_VERBOSE bool "Verbose fault messages" diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile index 01a60ca..f0902c1 100644 --- a/arch/blackfin/kernel/Makefile +++ b/arch/blackfin/kernel/Makefile @@ -19,4 +19,5 @@ obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o obj-$(CONFIG_CPLB_INFO) += cplbinfo.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_KGDB) += kgdb.o +obj-$(CONFIG_KGDB_TESTCASE) += kgdb_test.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o diff --git a/arch/blackfin/kernel/kgdb_test.c b/arch/blackfin/kernel/kgdb_test.c new file mode 100644 index 0000000..3dba9c1 --- /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"); |