| 2007-03-13 Mike Frysinger <vapier@gentoo.org> |
| |
| * sysdeps/unix/sysv/linux/sh/sys/user.h: Copy Linux's asm-sh/user.h. |
| |
| --- glibc-2_9/sysdeps/unix/sysv/linux/sh/sys/user.h |
| +++ glibc-2_9/sysdeps/unix/sysv/linux/sh/sys/user.h |
| @@ -19,10 +19,60 @@ |
| #ifndef _SYS_USER_H |
| #define _SYS_USER_H 1 |
| |
| -#include <features.h> |
| +#include <unistd.h> |
| +#include <asm/ptrace.h> |
| |
| -#include <asm/user.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 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 long. |
| + * data: The data segment follows next. 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 in order to be able |
| + * to write an integer number of pages. |
| + */ |
| |
| -#undef start_thread |
| +struct user_fpu_struct { |
| + unsigned long fp_regs[16]; |
| + unsigned long xfp_regs[16]; |
| + unsigned long fpscr; |
| + unsigned long fpul; |
| +}; |
| + |
| +struct user { |
| + struct pt_regs regs; /* entire machine state */ |
| + struct user_fpu_struct fpu; /* Math Co-processor registers */ |
| + int u_fpvalid; /* True if math co-processor being used */ |
| + 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 */ |
| + struct regs * u_ar0; /* help gdb find registers */ |
| + struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */ |
| + unsigned long magic; /* identifies a core file */ |
| + char u_comm[32]; /* user command name */ |
| +}; |
| + |
| +#define NBPG getpagesize() |
| +#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 /* sys/user.h */ |
