85 lines
3.3 KiB
Diff
85 lines
3.3 KiB
Diff
--- /dev/null
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+++ b/libc/sysdeps/linux/cris/sys/user.h
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@@ -0,0 +1,81 @@
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+#ifndef __ASM_CRIS_USER_H
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+#define __ASM_CRIS_USER_H
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+
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+/* User-mode register used for core dumps. */
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+
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+struct user_fpregs {
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+};
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+
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+struct user_regs_struct {
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+ unsigned long r0; /* General registers. */
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+ unsigned long r1;
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+ unsigned long r2;
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+ unsigned long r3;
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+ unsigned long r4;
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+ unsigned long r5;
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+ unsigned long r6;
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+ unsigned long r7;
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+ unsigned long r8;
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+ unsigned long r9;
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+ unsigned long r10;
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+ unsigned long r11;
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+ unsigned long r12;
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+ unsigned long r13;
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+ unsigned long sp; /* R14, Stack pointer. */
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+ unsigned long acr; /* R15, Address calculation register. */
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+ unsigned long bz; /* P0, Constant zero (8-bits). */
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+ unsigned long vr; /* P1, Version register (8-bits). */
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+ unsigned long pid; /* P2, Process ID (8-bits). */
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+ unsigned long srs; /* P3, Support register select (8-bits). */
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+ unsigned long wz; /* P4, Constant zero (16-bits). */
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+ unsigned long exs; /* P5, Exception status. */
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+ unsigned long eda; /* P6, Exception data address. */
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+ unsigned long mof; /* P7, Multiply overflow regiter. */
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+ unsigned long dz; /* P8, Constant zero (32-bits). */
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+ unsigned long ebp; /* P9, Exception base pointer. */
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+ unsigned long erp; /* P10, Exception return pointer. */
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+ unsigned long srp; /* P11, Subroutine return pointer. */
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+ unsigned long nrp; /* P12, NMI return pointer. */
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+ unsigned long ccs; /* P13, Condition code stack. */
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+ unsigned long usp; /* P14, User mode stack pointer. */
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+ unsigned long spc; /* P15, Single step PC. */
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+};
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+
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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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+struct user {
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+ struct user_regs_struct regs; /* entire machine state */
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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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+ unsigned long u_ar0; /* help gdb find registers */
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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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+#endif /* __ASM_CRIS_USER_H */
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