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Diffstat (limited to 'include/asm-x86_64/user.h')
| -rw-r--r-- | include/asm-x86_64/user.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/include/asm-x86_64/user.h b/include/asm-x86_64/user.h deleted file mode 100644 index 12785c649ac5..000000000000 --- a/include/asm-x86_64/user.h +++ /dev/null @@ -1,114 +0,0 @@ -#ifndef _X86_64_USER_H -#define _X86_64_USER_H - -#include <asm/types.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. - There are quite a number of obstacles to being able to view the - contents of the floating point registers, and until these are - solved you will not be able to view the contents of them. - Actually, you can read in the core file and look at the contents of - the user struct to find out what the floating point registers - contain. - - 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 useful 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 malloced. 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 (esp) to - current->start_stack, so we round each of these off in order to be able - to write an integer number of pages. - The minimum core file size is 3 pages, or 12288 bytes. */ - -/* - * Pentium III FXSR, SSE support - * Gareth Hughes <gareth@valinux.com>, May 2000 - * - * Provide support for the GDB 5.0+ PTRACE_{GET|SET}FPXREGS requests for - * interacting with the FXSR-format floating point environment. Floating - * point data can be accessed in the regular format in the usual manner, - * and both the standard and SIMD floating point data can be accessed via - * the new ptrace requests. In either case, changes to the FPU environment - * will be reflected in the task's state as expected. - * - * x86-64 support by Andi Kleen. - */ - -/* This matches the 64bit FXSAVE format as defined by AMD. It is the same - as the 32bit format defined by Intel, except that the selector:offset pairs for - data and eip are replaced with flat 64bit pointers. */ -struct user_i387_struct { - unsigned short cwd; - unsigned short swd; - unsigned short twd; /* Note this is not the same as the 32bit/x87/FSAVE twd */ - unsigned short fop; - __u64 rip; - __u64 rdp; - __u32 mxcsr; - __u32 mxcsr_mask; - __u32 st_space[32]; /* 8*16 bytes for each FP-reg = 128 bytes */ - __u32 xmm_space[64]; /* 16*16 bytes for each XMM-reg = 256 bytes */ - __u32 padding[24]; -}; - -/* - * Segment register layout in coredumps. - */ -struct user_regs_struct { - unsigned long r15,r14,r13,r12,rbp,rbx,r11,r10; - unsigned long r9,r8,rax,rcx,rdx,rsi,rdi,orig_rax; - unsigned long rip,cs,eflags; - unsigned long rsp,ss; - unsigned long fs_base, gs_base; - unsigned long ds,es,fs,gs; -}; - -/* When the kernel dumps core, it starts by dumping the user struct - - this will be used by gdb to figure out where the data and stack segments - are within the file, and what virtual addresses to use. */ -struct user{ -/* We start with the registers, to mimic the way that "memory" is returned - from the ptrace(3,...) function. */ - struct user_regs_struct regs; /* Where the registers are actually stored */ -/* ptrace does not yet supply these. Someday.... */ - int u_fpvalid; /* True if math co-processor being used. */ - /* for this mess. Not yet used. */ - int pad0; - struct user_i387_struct i387; /* Math Co-processor registers. */ -/* The rest of this junk is to help gdb figure out what goes where */ - unsigned long int u_tsize; /* Text segment size (pages). */ - unsigned long int u_dsize; /* Data segment size (pages). */ - unsigned long int u_ssize; /* Stack segment size (pages). */ - unsigned long start_code; /* Starting virtual address of text. */ - unsigned long start_stack; /* Starting virtual address of stack area. - This is actually the bottom of the stack, - the top of the stack is always found in the - esp register. */ - long int signal; /* Signal that caused the core dump. */ - int reserved; /* No longer used */ - int pad1; - struct user_pt_regs * u_ar0; /* Used by gdb to help find the values for */ - /* the registers. */ - struct user_i387_struct* u_fpstate; /* Math Co-processor pointer. */ - unsigned long magic; /* To uniquely identify a core file */ - char u_comm[32]; /* User command that was responsible */ - unsigned long u_debugreg[8]; - unsigned long error_code; /* CPU error code or 0 */ - unsigned long fault_address; /* CR3 or 0 */ -}; -#define NBPG PAGE_SIZE -#define UPAGES 1 -#define HOST_TEXT_START_ADDR (u.start_code) -#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) - -#endif /* _X86_64_USER_H */ |