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71 lines
2.7 KiB
Diff
71 lines
2.7 KiB
Diff
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2007-03-13 Mike Frysinger <vapier@gentoo.org>
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* sysdeps/unix/sysv/linux/sh/sys/user.h: Copy Linux's asm-sh/user.h.
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--- glibc-2_9/sysdeps/unix/sysv/linux/sh/sys/user.h
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+++ glibc-2_9/sysdeps/unix/sysv/linux/sh/sys/user.h
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@@ -19,10 +19,60 @@
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#ifndef _SYS_USER_H
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#define _SYS_USER_H 1
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-#include <features.h>
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+#include <unistd.h>
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+#include <asm/ptrace.h>
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-#include <asm/user.h>
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+/*
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+ * Core file format: The core file is written in such a way that gdb
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+ * can understand it and provide useful information to the user (under
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+ * linux we use the `trad-core' bfd). The file contents are as follows:
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+ *
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+ * upage: 1 page consisting of a user struct that tells gdb
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+ * what is present in the file. Directly after this is a
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+ * copy of the task_struct, which is currently not used by gdb,
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+ * but it may come in handy at some point. All of the registers
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+ * are stored as part of the upage. The upage should always be
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+ * only one page long.
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+ * data: The data segment follows next. We use current->end_text to
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+ * current->brk to pick up all of the user variables, plus any memory
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+ * that may have been sbrk'ed. No attempt is made to determine if a
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+ * page is demand-zero or if a page is totally unused, we just cover
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+ * the entire range. All of the addresses are rounded in such a way
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+ * that an integral number of pages is written.
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+ * stack: We need the stack information in order to get a meaningful
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+ * backtrace. We need to write the data from usp to
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+ * current->start_stack, so we round each of these in order to be able
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+ * to write an integer number of pages.
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+ */
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-#undef start_thread
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+struct user_fpu_struct {
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+ unsigned long fp_regs[16];
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+ unsigned long xfp_regs[16];
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+ unsigned long fpscr;
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+ unsigned long fpul;
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+};
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+
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+struct user {
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+ struct pt_regs regs; /* entire machine state */
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+ struct user_fpu_struct fpu; /* Math Co-processor registers */
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+ int u_fpvalid; /* True if math co-processor being used */
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+ size_t u_tsize; /* text size (pages) */
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+ size_t u_dsize; /* data size (pages) */
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+ size_t u_ssize; /* stack size (pages) */
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+ unsigned long start_code; /* text starting address */
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+ unsigned long start_data; /* data starting address */
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+ unsigned long start_stack; /* stack starting address */
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+ long int signal; /* signal causing core dump */
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+ struct regs * u_ar0; /* help gdb find registers */
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+ struct user_fpu_struct* u_fpstate; /* Math Co-processor pointer */
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+ unsigned long magic; /* identifies a core file */
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+ char u_comm[32]; /* user command name */
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+};
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+
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+#define NBPG getpagesize()
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+#define UPAGES 1
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+#define HOST_TEXT_START_ADDR (u.start_code)
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+#define HOST_DATA_START_ADDR (u.start_data)
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+#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
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#endif /* sys/user.h */
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