| author | "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> |
| Sun Apr 19 16:17:11 2009 +0000 (2009-04-19) | |
| branch | newlib |
| changeset 1365 | c4d124ed9f8e |
| permissions | -rw-r--r-- |
| yann@1365 | 1 |
2007-03-13 Mike Frysinger <vapier@gentoo.org> |
| yann@1365 | 2 |
|
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* sysdeps/unix/sysv/linux/sh/sys/user.h: Copy Linux's asm-sh/user.h. |
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|
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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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|
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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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|
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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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|
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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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|
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#endif /* sys/user.h */ |