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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef __ASM_SH_USER_H
- #define __ASM_SH_USER_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 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.
- */
- 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 */
- unsigned long 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 */
- };
- #endif /* __ASM_SH_USER_H */
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