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author | Hirokazu Takata <takata@linux-m32r.org> | 2008-11-28 02:46:48 +0900 |
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committer | Hirokazu Takata <takata@linux-m32r.org> | 2009-04-17 10:05:01 +0900 |
commit | fe4e719d82c4052751d2287de4bd18bd04e93685 (patch) | |
tree | 3a120e25626becf138f523a356422c0cdf9804c7 /arch/m32r/include/asm/user.h | |
parent | 20d9207849d5abe60461841b3c3724f6e7c9d33e (diff) | |
download | kernel_samsung_smdk4412-fe4e719d82c4052751d2287de4bd18bd04e93685.zip kernel_samsung_smdk4412-fe4e719d82c4052751d2287de4bd18bd04e93685.tar.gz kernel_samsung_smdk4412-fe4e719d82c4052751d2287de4bd18bd04e93685.tar.bz2 |
m32r: move include/asm-m32r headers to arch/m32r/include/asm
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Diffstat (limited to 'arch/m32r/include/asm/user.h')
-rw-r--r-- | arch/m32r/include/asm/user.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/m32r/include/asm/user.h b/arch/m32r/include/asm/user.h new file mode 100644 index 0000000..03b3c11 --- /dev/null +++ b/arch/m32r/include/asm/user.h @@ -0,0 +1,52 @@ +#ifndef _ASM_M32R_USER_H +#define _ASM_M32R_USER_H + +#include <linux/types.h> +#include <asm/ptrace.h> +#include <asm/page.h> + +/* + * Core file format: The core file is written in such a way that gdb + * can understand it and provide useful information to the user (under + * linux we use the `trad-core' bfd). + * + * The actual file contents are as follows: + * UPAGE: 1 page consisting of a user struct that tells gdb + * what is present in the file. Directly after this is a + * copy of the task_struct, which is currently not used by gdb, + * but it may come in handy at some point. All of the registers + * are stored as part of the upage. The upage should always be + * only one page. + * DATA: The data area is stored. We use current->end_text to + * current->brk to pick up all of the user variables, plus any memory + * that may have been sbrk'ed. No attempt is made to determine if a + * page is demand-zero or if a page is totally unused, we just cover + * the entire range. All of the addresses are rounded in such a way + * that an integral number of pages is written. + * STACK: We need the stack information in order to get a meaningful + * backtrace. We need to write the data from usp to + * current->start_stack, so we round each of these off in order to be + * able to write an integer number of pages. + */ + +struct user { + struct pt_regs regs; /* entire machine state */ + size_t u_tsize; /* text size (pages) */ + size_t u_dsize; /* data size (pages) */ + size_t u_ssize; /* stack size (pages) */ + unsigned long start_code; /* text starting address */ + unsigned long start_data; /* data starting address */ + unsigned long start_stack; /* stack starting address */ + long int signal; /* signal causing core dump */ + unsigned long u_ar0; /* help gdb find registers */ + unsigned long magic; /* identifies a core file */ + char u_comm[32]; /* user command name */ +}; + +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_DATA_START_ADDR (u.start_data) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif /* _ASM_M32R_USER_H */ |