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Diffstat (limited to 'arch/ia64/kernel/unwind_i.h')
-rw-r--r--arch/ia64/kernel/unwind_i.h165
1 files changed, 0 insertions, 165 deletions
diff --git a/arch/ia64/kernel/unwind_i.h b/arch/ia64/kernel/unwind_i.h
deleted file mode 100644
index 67994a7e5816..000000000000
--- a/arch/ia64/kernel/unwind_i.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2000, 2002-2003 Hewlett-Packard Co
- * David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * Kernel unwind support.
- */
-
-#define UNW_VER(x) ((x) >> 48)
-#define UNW_FLAG_MASK 0x0000ffff00000000
-#define UNW_FLAG_OSMASK 0x0000f00000000000
-#define UNW_FLAG_EHANDLER(x) ((x) & 0x0000000100000000L)
-#define UNW_FLAG_UHANDLER(x) ((x) & 0x0000000200000000L)
-#define UNW_LENGTH(x) ((x) & 0x00000000ffffffffL)
-
-enum unw_register_index {
- /* primary unat: */
- UNW_REG_PRI_UNAT_GR,
- UNW_REG_PRI_UNAT_MEM,
-
- /* register stack */
- UNW_REG_BSP, /* register stack pointer */
- UNW_REG_BSPSTORE,
- UNW_REG_PFS, /* previous function state */
- UNW_REG_RNAT,
- /* memory stack */
- UNW_REG_PSP, /* previous memory stack pointer */
- /* return pointer: */
- UNW_REG_RP,
-
- /* preserved registers: */
- UNW_REG_R4, UNW_REG_R5, UNW_REG_R6, UNW_REG_R7,
- UNW_REG_UNAT, UNW_REG_PR, UNW_REG_LC, UNW_REG_FPSR,
- UNW_REG_B1, UNW_REG_B2, UNW_REG_B3, UNW_REG_B4, UNW_REG_B5,
- UNW_REG_F2, UNW_REG_F3, UNW_REG_F4, UNW_REG_F5,
- UNW_REG_F16, UNW_REG_F17, UNW_REG_F18, UNW_REG_F19,
- UNW_REG_F20, UNW_REG_F21, UNW_REG_F22, UNW_REG_F23,
- UNW_REG_F24, UNW_REG_F25, UNW_REG_F26, UNW_REG_F27,
- UNW_REG_F28, UNW_REG_F29, UNW_REG_F30, UNW_REG_F31,
- UNW_NUM_REGS
-};
-
-struct unw_info_block {
- u64 header;
- u64 desc[0]; /* unwind descriptors */
- /* personality routine and language-specific data follow behind descriptors */
-};
-
-struct unw_table {
- struct unw_table *next; /* must be first member! */
- const char *name;
- unsigned long gp; /* global pointer for this load-module */
- unsigned long segment_base; /* base for offsets in the unwind table entries */
- unsigned long start;
- unsigned long end;
- const struct unw_table_entry *array;
- unsigned long length;
-};
-
-enum unw_where {
- UNW_WHERE_NONE, /* register isn't saved at all */
- UNW_WHERE_GR, /* register is saved in a general register */
- UNW_WHERE_FR, /* register is saved in a floating-point register */
- UNW_WHERE_BR, /* register is saved in a branch register */
- UNW_WHERE_SPREL, /* register is saved on memstack (sp-relative) */
- UNW_WHERE_PSPREL, /* register is saved on memstack (psp-relative) */
- /*
- * At the end of each prologue these locations get resolved to
- * UNW_WHERE_PSPREL and UNW_WHERE_GR, respectively:
- */
- UNW_WHERE_SPILL_HOME, /* register is saved in its spill home */
- UNW_WHERE_GR_SAVE /* register is saved in next general register */
-};
-
-#define UNW_WHEN_NEVER 0x7fffffff
-
-struct unw_reg_info {
- unsigned long val; /* save location: register number or offset */
- enum unw_where where; /* where the register gets saved */
- int when; /* when the register gets saved */
-};
-
-struct unw_reg_state {
- struct unw_reg_state *next; /* next (outer) element on state stack */
- struct unw_reg_info reg[UNW_NUM_REGS]; /* register save locations */
-};
-
-struct unw_labeled_state {
- struct unw_labeled_state *next; /* next labeled state (or NULL) */
- unsigned long label; /* label for this state */
- struct unw_reg_state saved_state;
-};
-
-struct unw_state_record {
- unsigned int first_region : 1; /* is this the first region? */
- unsigned int done : 1; /* are we done scanning descriptors? */
- unsigned int any_spills : 1; /* got any register spills? */
- unsigned int in_body : 1; /* are we inside a body (as opposed to a prologue)? */
- unsigned long flags; /* see UNW_FLAG_* in unwind.h */
-
- u8 *imask; /* imask of spill_mask record or NULL */
- unsigned long pr_val; /* predicate values */
- unsigned long pr_mask; /* predicate mask */
- long spill_offset; /* psp-relative offset for spill base */
- int region_start;
- int region_len;
- int epilogue_start;
- int epilogue_count;
- int when_target;
-
- u8 gr_save_loc; /* next general register to use for saving a register */
- u8 return_link_reg; /* branch register in which the return link is passed */
-
- struct unw_labeled_state *labeled_states; /* list of all labeled states */
- struct unw_reg_state curr; /* current state */
-};
-
-enum unw_nat_type {
- UNW_NAT_NONE, /* NaT not represented */
- UNW_NAT_VAL, /* NaT represented by NaT value (fp reg) */
- UNW_NAT_MEMSTK, /* NaT value is in unat word at offset OFF */
- UNW_NAT_REGSTK /* NaT is in rnat */
-};
-
-enum unw_insn_opcode {
- UNW_INSN_ADD, /* s[dst] += val */
- UNW_INSN_ADD_PSP, /* s[dst] = (s.psp + val) */
- UNW_INSN_ADD_SP, /* s[dst] = (s.sp + val) */
- UNW_INSN_MOVE, /* s[dst] = s[val] */
- UNW_INSN_MOVE2, /* s[dst] = s[val]; s[dst+1] = s[val+1] */
- UNW_INSN_MOVE_STACKED, /* s[dst] = ia64_rse_skip(*s.bsp, val) */
- UNW_INSN_SETNAT_MEMSTK, /* s[dst+1].nat.type = MEMSTK;
- s[dst+1].nat.off = *s.pri_unat - s[dst] */
- UNW_INSN_SETNAT_TYPE, /* s[dst+1].nat.type = val */
- UNW_INSN_LOAD, /* s[dst] = *s[val] */
- UNW_INSN_MOVE_SCRATCH, /* s[dst] = scratch reg "val" */
- UNW_INSN_MOVE_CONST, /* s[dst] = constant reg "val" */
-};
-
-struct unw_insn {
- unsigned int opc : 4;
- unsigned int dst : 9;
- signed int val : 19;
-};
-
-/*
- * Preserved general static registers (r4-r7) give rise to two script
- * instructions; everything else yields at most one instruction; at
- * the end of the script, the psp gets popped, accounting for one more
- * instruction.
- */
-#define UNW_MAX_SCRIPT_LEN (UNW_NUM_REGS + 5)
-
-struct unw_script {
- unsigned long ip; /* ip this script is for */
- unsigned long pr_mask; /* mask of predicates script depends on */
- unsigned long pr_val; /* predicate values this script is for */
- rwlock_t lock;
- unsigned int flags; /* see UNW_FLAG_* in unwind.h */
- unsigned short lru_chain; /* used for least-recently-used chain */
- unsigned short coll_chain; /* used for hash collisions */
- unsigned short hint; /* hint for next script to try (or -1) */
- unsigned short count; /* number of instructions in script */
- struct unw_insn insn[UNW_MAX_SCRIPT_LEN];
-};