svn commit: r288149 - in vendor/llvm-libunwind: . dist dist/include dist/include/mach-o dist/src
Ed Maste
emaste at FreeBSD.org
Wed Sep 23 19:02:07 UTC 2015
Author: emaste
Date: Wed Sep 23 19:02:06 2015
New Revision: 288149
URL: https://svnweb.freebsd.org/changeset/base/288149
Log:
Import LLVM libunwind snapshot revision 246528
From https://llvm.org/svn/llvm-project/libunwind/trunk/
Added:
vendor/llvm-libunwind/
vendor/llvm-libunwind/dist/
vendor/llvm-libunwind/dist/include/
vendor/llvm-libunwind/dist/include/__libunwind_config.h (contents, props changed)
vendor/llvm-libunwind/dist/include/libunwind.h (contents, props changed)
vendor/llvm-libunwind/dist/include/mach-o/
vendor/llvm-libunwind/dist/include/mach-o/compact_unwind_encoding.h (contents, props changed)
vendor/llvm-libunwind/dist/include/unwind.h (contents, props changed)
vendor/llvm-libunwind/dist/src/
vendor/llvm-libunwind/dist/src/AddressSpace.hpp
vendor/llvm-libunwind/dist/src/CompactUnwinder.hpp
vendor/llvm-libunwind/dist/src/DwarfInstructions.hpp
vendor/llvm-libunwind/dist/src/DwarfParser.hpp
vendor/llvm-libunwind/dist/src/EHHeaderParser.hpp
vendor/llvm-libunwind/dist/src/Registers.hpp
vendor/llvm-libunwind/dist/src/Unwind-EHABI.cpp (contents, props changed)
vendor/llvm-libunwind/dist/src/Unwind-EHABI.h (contents, props changed)
vendor/llvm-libunwind/dist/src/Unwind-sjlj.c (contents, props changed)
vendor/llvm-libunwind/dist/src/UnwindCursor.hpp
vendor/llvm-libunwind/dist/src/UnwindLevel1-gcc-ext.c (contents, props changed)
vendor/llvm-libunwind/dist/src/UnwindLevel1.c (contents, props changed)
vendor/llvm-libunwind/dist/src/UnwindRegistersRestore.S (contents, props changed)
vendor/llvm-libunwind/dist/src/UnwindRegistersSave.S (contents, props changed)
vendor/llvm-libunwind/dist/src/Unwind_AppleExtras.cpp (contents, props changed)
vendor/llvm-libunwind/dist/src/assembly.h (contents, props changed)
vendor/llvm-libunwind/dist/src/config.h (contents, props changed)
vendor/llvm-libunwind/dist/src/dwarf2.h (contents, props changed)
vendor/llvm-libunwind/dist/src/libunwind.cpp (contents, props changed)
vendor/llvm-libunwind/dist/src/libunwind_ext.h (contents, props changed)
vendor/llvm-libunwind/dist/src/unwind_ext.h (contents, props changed)
Added: vendor/llvm-libunwind/dist/include/__libunwind_config.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ vendor/llvm-libunwind/dist/include/__libunwind_config.h Wed Sep 23 19:02:06 2015 (r288149)
@@ -0,0 +1,20 @@
+//===------------------------- __libunwind_config.h -----------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef ____LIBUNWIND_CONFIG_H__
+#define ____LIBUNWIND_CONFIG_H__
+
+#if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \
+ !defined(__ARM_DWARF_EH__)
+#define _LIBUNWIND_ARM_EHABI 1
+#else
+#define _LIBUNWIND_ARM_EHABI 0
+#endif
+
+#endif // ____LIBUNWIND_CONFIG_H__
Added: vendor/llvm-libunwind/dist/include/libunwind.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ vendor/llvm-libunwind/dist/include/libunwind.h Wed Sep 23 19:02:06 2015 (r288149)
@@ -0,0 +1,536 @@
+//===---------------------------- libunwind.h -----------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//
+// Compatible with libuwind API documented at:
+// http://www.nongnu.org/libunwind/man/libunwind(3).html
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __LIBUNWIND__
+#define __LIBUNWIND__
+
+#include <__libunwind_config.h>
+
+#include <stdint.h>
+#include <stddef.h>
+
+#ifdef __APPLE__
+ #include <Availability.h>
+ #ifdef __arm__
+ #define LIBUNWIND_AVAIL __attribute__((unavailable))
+ #else
+ #define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0)
+ #endif
+#else
+ #define LIBUNWIND_AVAIL
+#endif
+
+/* error codes */
+enum {
+ UNW_ESUCCESS = 0, /* no error */
+ UNW_EUNSPEC = -6540, /* unspecified (general) error */
+ UNW_ENOMEM = -6541, /* out of memory */
+ UNW_EBADREG = -6542, /* bad register number */
+ UNW_EREADONLYREG = -6543, /* attempt to write read-only register */
+ UNW_ESTOPUNWIND = -6544, /* stop unwinding */
+ UNW_EINVALIDIP = -6545, /* invalid IP */
+ UNW_EBADFRAME = -6546, /* bad frame */
+ UNW_EINVAL = -6547, /* unsupported operation or bad value */
+ UNW_EBADVERSION = -6548, /* unwind info has unsupported version */
+ UNW_ENOINFO = -6549 /* no unwind info found */
+};
+
+struct unw_context_t {
+ uint64_t data[128];
+};
+typedef struct unw_context_t unw_context_t;
+
+struct unw_cursor_t {
+ uint64_t data[140];
+};
+typedef struct unw_cursor_t unw_cursor_t;
+
+typedef struct unw_addr_space *unw_addr_space_t;
+
+typedef int unw_regnum_t;
+#if _LIBUNWIND_ARM_EHABI
+typedef uint32_t unw_word_t;
+typedef uint64_t unw_fpreg_t;
+#else
+typedef uint64_t unw_word_t;
+typedef double unw_fpreg_t;
+#endif
+
+struct unw_proc_info_t {
+ unw_word_t start_ip; /* start address of function */
+ unw_word_t end_ip; /* address after end of function */
+ unw_word_t lsda; /* address of language specific data area, */
+ /* or zero if not used */
+ unw_word_t handler; /* personality routine, or zero if not used */
+ unw_word_t gp; /* not used */
+ unw_word_t flags; /* not used */
+ uint32_t format; /* compact unwind encoding, or zero if none */
+ uint32_t unwind_info_size; /* size of dwarf unwind info, or zero if none */
+ unw_word_t unwind_info; /* address of dwarf unwind info, or zero */
+ unw_word_t extra; /* mach_header of mach-o image containing func */
+};
+typedef struct unw_proc_info_t unw_proc_info_t;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int unw_getcontext(unw_context_t *) LIBUNWIND_AVAIL;
+extern int unw_init_local(unw_cursor_t *, unw_context_t *) LIBUNWIND_AVAIL;
+extern int unw_step(unw_cursor_t *) LIBUNWIND_AVAIL;
+extern int unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *) LIBUNWIND_AVAIL;
+extern int unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *) LIBUNWIND_AVAIL;
+extern int unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t) LIBUNWIND_AVAIL;
+extern int unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t) LIBUNWIND_AVAIL;
+extern int unw_resume(unw_cursor_t *) LIBUNWIND_AVAIL;
+
+#ifdef __arm__
+/* Save VFP registers in FSTMX format (instead of FSTMD). */
+extern void unw_save_vfp_as_X(unw_cursor_t *) LIBUNWIND_AVAIL;
+#endif
+
+
+extern const char *unw_regname(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL;
+extern int unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *) LIBUNWIND_AVAIL;
+extern int unw_is_fpreg(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL;
+extern int unw_is_signal_frame(unw_cursor_t *) LIBUNWIND_AVAIL;
+extern int unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *) LIBUNWIND_AVAIL;
+//extern int unw_get_save_loc(unw_cursor_t*, int, unw_save_loc_t*);
+
+extern unw_addr_space_t unw_local_addr_space;
+
+#ifdef UNW_REMOTE
+/*
+ * Mac OS X "remote" API for unwinding other processes on same machine
+ *
+ */
+extern unw_addr_space_t unw_create_addr_space_for_task(task_t);
+extern void unw_destroy_addr_space(unw_addr_space_t);
+extern int unw_init_remote_thread(unw_cursor_t *, unw_addr_space_t, thread_t *);
+#endif /* UNW_REMOTE */
+
+/*
+ * traditional libuwind "remote" API
+ * NOT IMPLEMENTED on Mac OS X
+ *
+ * extern int unw_init_remote(unw_cursor_t*, unw_addr_space_t,
+ * thread_t*);
+ * extern unw_accessors_t unw_get_accessors(unw_addr_space_t);
+ * extern unw_addr_space_t unw_create_addr_space(unw_accessors_t, int);
+ * extern void unw_flush_cache(unw_addr_space_t, unw_word_t,
+ * unw_word_t);
+ * extern int unw_set_caching_policy(unw_addr_space_t,
+ * unw_caching_policy_t);
+ * extern void _U_dyn_register(unw_dyn_info_t*);
+ * extern void _U_dyn_cancel(unw_dyn_info_t*);
+ */
+
+#ifdef __cplusplus
+}
+#endif
+
+// architecture independent register numbers
+enum {
+ UNW_REG_IP = -1, // instruction pointer
+ UNW_REG_SP = -2, // stack pointer
+};
+
+// 32-bit x86 registers
+enum {
+ UNW_X86_EAX = 0,
+ UNW_X86_ECX = 1,
+ UNW_X86_EDX = 2,
+ UNW_X86_EBX = 3,
+ UNW_X86_EBP = 4,
+ UNW_X86_ESP = 5,
+ UNW_X86_ESI = 6,
+ UNW_X86_EDI = 7
+};
+
+// 64-bit x86_64 registers
+enum {
+ UNW_X86_64_RAX = 0,
+ UNW_X86_64_RDX = 1,
+ UNW_X86_64_RCX = 2,
+ UNW_X86_64_RBX = 3,
+ UNW_X86_64_RSI = 4,
+ UNW_X86_64_RDI = 5,
+ UNW_X86_64_RBP = 6,
+ UNW_X86_64_RSP = 7,
+ UNW_X86_64_R8 = 8,
+ UNW_X86_64_R9 = 9,
+ UNW_X86_64_R10 = 10,
+ UNW_X86_64_R11 = 11,
+ UNW_X86_64_R12 = 12,
+ UNW_X86_64_R13 = 13,
+ UNW_X86_64_R14 = 14,
+ UNW_X86_64_R15 = 15
+};
+
+
+// 32-bit ppc register numbers
+enum {
+ UNW_PPC_R0 = 0,
+ UNW_PPC_R1 = 1,
+ UNW_PPC_R2 = 2,
+ UNW_PPC_R3 = 3,
+ UNW_PPC_R4 = 4,
+ UNW_PPC_R5 = 5,
+ UNW_PPC_R6 = 6,
+ UNW_PPC_R7 = 7,
+ UNW_PPC_R8 = 8,
+ UNW_PPC_R9 = 9,
+ UNW_PPC_R10 = 10,
+ UNW_PPC_R11 = 11,
+ UNW_PPC_R12 = 12,
+ UNW_PPC_R13 = 13,
+ UNW_PPC_R14 = 14,
+ UNW_PPC_R15 = 15,
+ UNW_PPC_R16 = 16,
+ UNW_PPC_R17 = 17,
+ UNW_PPC_R18 = 18,
+ UNW_PPC_R19 = 19,
+ UNW_PPC_R20 = 20,
+ UNW_PPC_R21 = 21,
+ UNW_PPC_R22 = 22,
+ UNW_PPC_R23 = 23,
+ UNW_PPC_R24 = 24,
+ UNW_PPC_R25 = 25,
+ UNW_PPC_R26 = 26,
+ UNW_PPC_R27 = 27,
+ UNW_PPC_R28 = 28,
+ UNW_PPC_R29 = 29,
+ UNW_PPC_R30 = 30,
+ UNW_PPC_R31 = 31,
+ UNW_PPC_F0 = 32,
+ UNW_PPC_F1 = 33,
+ UNW_PPC_F2 = 34,
+ UNW_PPC_F3 = 35,
+ UNW_PPC_F4 = 36,
+ UNW_PPC_F5 = 37,
+ UNW_PPC_F6 = 38,
+ UNW_PPC_F7 = 39,
+ UNW_PPC_F8 = 40,
+ UNW_PPC_F9 = 41,
+ UNW_PPC_F10 = 42,
+ UNW_PPC_F11 = 43,
+ UNW_PPC_F12 = 44,
+ UNW_PPC_F13 = 45,
+ UNW_PPC_F14 = 46,
+ UNW_PPC_F15 = 47,
+ UNW_PPC_F16 = 48,
+ UNW_PPC_F17 = 49,
+ UNW_PPC_F18 = 50,
+ UNW_PPC_F19 = 51,
+ UNW_PPC_F20 = 52,
+ UNW_PPC_F21 = 53,
+ UNW_PPC_F22 = 54,
+ UNW_PPC_F23 = 55,
+ UNW_PPC_F24 = 56,
+ UNW_PPC_F25 = 57,
+ UNW_PPC_F26 = 58,
+ UNW_PPC_F27 = 59,
+ UNW_PPC_F28 = 60,
+ UNW_PPC_F29 = 61,
+ UNW_PPC_F30 = 62,
+ UNW_PPC_F31 = 63,
+ UNW_PPC_MQ = 64,
+ UNW_PPC_LR = 65,
+ UNW_PPC_CTR = 66,
+ UNW_PPC_AP = 67,
+ UNW_PPC_CR0 = 68,
+ UNW_PPC_CR1 = 69,
+ UNW_PPC_CR2 = 70,
+ UNW_PPC_CR3 = 71,
+ UNW_PPC_CR4 = 72,
+ UNW_PPC_CR5 = 73,
+ UNW_PPC_CR6 = 74,
+ UNW_PPC_CR7 = 75,
+ UNW_PPC_XER = 76,
+ UNW_PPC_V0 = 77,
+ UNW_PPC_V1 = 78,
+ UNW_PPC_V2 = 79,
+ UNW_PPC_V3 = 80,
+ UNW_PPC_V4 = 81,
+ UNW_PPC_V5 = 82,
+ UNW_PPC_V6 = 83,
+ UNW_PPC_V7 = 84,
+ UNW_PPC_V8 = 85,
+ UNW_PPC_V9 = 86,
+ UNW_PPC_V10 = 87,
+ UNW_PPC_V11 = 88,
+ UNW_PPC_V12 = 89,
+ UNW_PPC_V13 = 90,
+ UNW_PPC_V14 = 91,
+ UNW_PPC_V15 = 92,
+ UNW_PPC_V16 = 93,
+ UNW_PPC_V17 = 94,
+ UNW_PPC_V18 = 95,
+ UNW_PPC_V19 = 96,
+ UNW_PPC_V20 = 97,
+ UNW_PPC_V21 = 98,
+ UNW_PPC_V22 = 99,
+ UNW_PPC_V23 = 100,
+ UNW_PPC_V24 = 101,
+ UNW_PPC_V25 = 102,
+ UNW_PPC_V26 = 103,
+ UNW_PPC_V27 = 104,
+ UNW_PPC_V28 = 105,
+ UNW_PPC_V29 = 106,
+ UNW_PPC_V30 = 107,
+ UNW_PPC_V31 = 108,
+ UNW_PPC_VRSAVE = 109,
+ UNW_PPC_VSCR = 110,
+ UNW_PPC_SPE_ACC = 111,
+ UNW_PPC_SPEFSCR = 112
+};
+
+// 64-bit ARM64 registers
+enum {
+ UNW_ARM64_X0 = 0,
+ UNW_ARM64_X1 = 1,
+ UNW_ARM64_X2 = 2,
+ UNW_ARM64_X3 = 3,
+ UNW_ARM64_X4 = 4,
+ UNW_ARM64_X5 = 5,
+ UNW_ARM64_X6 = 6,
+ UNW_ARM64_X7 = 7,
+ UNW_ARM64_X8 = 8,
+ UNW_ARM64_X9 = 9,
+ UNW_ARM64_X10 = 10,
+ UNW_ARM64_X11 = 11,
+ UNW_ARM64_X12 = 12,
+ UNW_ARM64_X13 = 13,
+ UNW_ARM64_X14 = 14,
+ UNW_ARM64_X15 = 15,
+ UNW_ARM64_X16 = 16,
+ UNW_ARM64_X17 = 17,
+ UNW_ARM64_X18 = 18,
+ UNW_ARM64_X19 = 19,
+ UNW_ARM64_X20 = 20,
+ UNW_ARM64_X21 = 21,
+ UNW_ARM64_X22 = 22,
+ UNW_ARM64_X23 = 23,
+ UNW_ARM64_X24 = 24,
+ UNW_ARM64_X25 = 25,
+ UNW_ARM64_X26 = 26,
+ UNW_ARM64_X27 = 27,
+ UNW_ARM64_X28 = 28,
+ UNW_ARM64_X29 = 29,
+ UNW_ARM64_FP = 29,
+ UNW_ARM64_X30 = 30,
+ UNW_ARM64_LR = 30,
+ UNW_ARM64_X31 = 31,
+ UNW_ARM64_SP = 31,
+ // reserved block
+ UNW_ARM64_D0 = 64,
+ UNW_ARM64_D1 = 65,
+ UNW_ARM64_D2 = 66,
+ UNW_ARM64_D3 = 67,
+ UNW_ARM64_D4 = 68,
+ UNW_ARM64_D5 = 69,
+ UNW_ARM64_D6 = 70,
+ UNW_ARM64_D7 = 71,
+ UNW_ARM64_D8 = 72,
+ UNW_ARM64_D9 = 73,
+ UNW_ARM64_D10 = 74,
+ UNW_ARM64_D11 = 75,
+ UNW_ARM64_D12 = 76,
+ UNW_ARM64_D13 = 77,
+ UNW_ARM64_D14 = 78,
+ UNW_ARM64_D15 = 79,
+ UNW_ARM64_D16 = 80,
+ UNW_ARM64_D17 = 81,
+ UNW_ARM64_D18 = 82,
+ UNW_ARM64_D19 = 83,
+ UNW_ARM64_D20 = 84,
+ UNW_ARM64_D21 = 85,
+ UNW_ARM64_D22 = 86,
+ UNW_ARM64_D23 = 87,
+ UNW_ARM64_D24 = 88,
+ UNW_ARM64_D25 = 89,
+ UNW_ARM64_D26 = 90,
+ UNW_ARM64_D27 = 91,
+ UNW_ARM64_D28 = 92,
+ UNW_ARM64_D29 = 93,
+ UNW_ARM64_D30 = 94,
+ UNW_ARM64_D31 = 95,
+};
+
+// 32-bit ARM registers. Numbers match DWARF for ARM spec #3.1 Table 1.
+// Naming scheme uses recommendations given in Note 4 for VFP-v2 and VFP-v3.
+// In this scheme, even though the 64-bit floating point registers D0-D31
+// overlap physically with the 32-bit floating pointer registers S0-S31,
+// they are given a non-overlapping range of register numbers.
+//
+// Commented out ranges are not preserved during unwinding.
+enum {
+ UNW_ARM_R0 = 0,
+ UNW_ARM_R1 = 1,
+ UNW_ARM_R2 = 2,
+ UNW_ARM_R3 = 3,
+ UNW_ARM_R4 = 4,
+ UNW_ARM_R5 = 5,
+ UNW_ARM_R6 = 6,
+ UNW_ARM_R7 = 7,
+ UNW_ARM_R8 = 8,
+ UNW_ARM_R9 = 9,
+ UNW_ARM_R10 = 10,
+ UNW_ARM_R11 = 11,
+ UNW_ARM_R12 = 12,
+ UNW_ARM_SP = 13, // Logical alias for UNW_REG_SP
+ UNW_ARM_R13 = 13,
+ UNW_ARM_LR = 14,
+ UNW_ARM_R14 = 14,
+ UNW_ARM_IP = 15, // Logical alias for UNW_REG_IP
+ UNW_ARM_R15 = 15,
+ // 16-63 -- OBSOLETE. Used in VFP1 to represent both S0-S31 and D0-D31.
+ UNW_ARM_S0 = 64,
+ UNW_ARM_S1 = 65,
+ UNW_ARM_S2 = 66,
+ UNW_ARM_S3 = 67,
+ UNW_ARM_S4 = 68,
+ UNW_ARM_S5 = 69,
+ UNW_ARM_S6 = 70,
+ UNW_ARM_S7 = 71,
+ UNW_ARM_S8 = 72,
+ UNW_ARM_S9 = 73,
+ UNW_ARM_S10 = 74,
+ UNW_ARM_S11 = 75,
+ UNW_ARM_S12 = 76,
+ UNW_ARM_S13 = 77,
+ UNW_ARM_S14 = 78,
+ UNW_ARM_S15 = 79,
+ UNW_ARM_S16 = 80,
+ UNW_ARM_S17 = 81,
+ UNW_ARM_S18 = 82,
+ UNW_ARM_S19 = 83,
+ UNW_ARM_S20 = 84,
+ UNW_ARM_S21 = 85,
+ UNW_ARM_S22 = 86,
+ UNW_ARM_S23 = 87,
+ UNW_ARM_S24 = 88,
+ UNW_ARM_S25 = 89,
+ UNW_ARM_S26 = 90,
+ UNW_ARM_S27 = 91,
+ UNW_ARM_S28 = 92,
+ UNW_ARM_S29 = 93,
+ UNW_ARM_S30 = 94,
+ UNW_ARM_S31 = 95,
+ // 96-103 -- OBSOLETE. F0-F7. Used by the FPA system. Superseded by VFP.
+ // 104-111 -- wCGR0-wCGR7, ACC0-ACC7 (Intel wireless MMX)
+ UNW_ARM_WR0 = 112,
+ UNW_ARM_WR1 = 113,
+ UNW_ARM_WR2 = 114,
+ UNW_ARM_WR3 = 115,
+ UNW_ARM_WR4 = 116,
+ UNW_ARM_WR5 = 117,
+ UNW_ARM_WR6 = 118,
+ UNW_ARM_WR7 = 119,
+ UNW_ARM_WR8 = 120,
+ UNW_ARM_WR9 = 121,
+ UNW_ARM_WR10 = 122,
+ UNW_ARM_WR11 = 123,
+ UNW_ARM_WR12 = 124,
+ UNW_ARM_WR13 = 125,
+ UNW_ARM_WR14 = 126,
+ UNW_ARM_WR15 = 127,
+ // 128-133 -- SPSR, SPSR_{FIQ|IRQ|ABT|UND|SVC}
+ // 134-143 -- Reserved
+ // 144-150 -- R8_USR-R14_USR
+ // 151-157 -- R8_FIQ-R14_FIQ
+ // 158-159 -- R13_IRQ-R14_IRQ
+ // 160-161 -- R13_ABT-R14_ABT
+ // 162-163 -- R13_UND-R14_UND
+ // 164-165 -- R13_SVC-R14_SVC
+ // 166-191 -- Reserved
+ UNW_ARM_WC0 = 192,
+ UNW_ARM_WC1 = 193,
+ UNW_ARM_WC2 = 194,
+ UNW_ARM_WC3 = 195,
+ // 196-199 -- wC4-wC7 (Intel wireless MMX control)
+ // 200-255 -- Reserved
+ UNW_ARM_D0 = 256,
+ UNW_ARM_D1 = 257,
+ UNW_ARM_D2 = 258,
+ UNW_ARM_D3 = 259,
+ UNW_ARM_D4 = 260,
+ UNW_ARM_D5 = 261,
+ UNW_ARM_D6 = 262,
+ UNW_ARM_D7 = 263,
+ UNW_ARM_D8 = 264,
+ UNW_ARM_D9 = 265,
+ UNW_ARM_D10 = 266,
+ UNW_ARM_D11 = 267,
+ UNW_ARM_D12 = 268,
+ UNW_ARM_D13 = 269,
+ UNW_ARM_D14 = 270,
+ UNW_ARM_D15 = 271,
+ UNW_ARM_D16 = 272,
+ UNW_ARM_D17 = 273,
+ UNW_ARM_D18 = 274,
+ UNW_ARM_D19 = 275,
+ UNW_ARM_D20 = 276,
+ UNW_ARM_D21 = 277,
+ UNW_ARM_D22 = 278,
+ UNW_ARM_D23 = 279,
+ UNW_ARM_D24 = 280,
+ UNW_ARM_D25 = 281,
+ UNW_ARM_D26 = 282,
+ UNW_ARM_D27 = 283,
+ UNW_ARM_D28 = 284,
+ UNW_ARM_D29 = 285,
+ UNW_ARM_D30 = 286,
+ UNW_ARM_D31 = 287,
+ // 288-319 -- Reserved for VFP/Neon
+ // 320-8191 -- Reserved
+ // 8192-16383 -- Unspecified vendor co-processor register.
+};
+
+// OpenRISC1000 register numbers
+enum {
+ UNW_OR1K_R0 = 0,
+ UNW_OR1K_R1 = 1,
+ UNW_OR1K_R2 = 2,
+ UNW_OR1K_R3 = 3,
+ UNW_OR1K_R4 = 4,
+ UNW_OR1K_R5 = 5,
+ UNW_OR1K_R6 = 6,
+ UNW_OR1K_R7 = 7,
+ UNW_OR1K_R8 = 8,
+ UNW_OR1K_R9 = 9,
+ UNW_OR1K_R10 = 10,
+ UNW_OR1K_R11 = 11,
+ UNW_OR1K_R12 = 12,
+ UNW_OR1K_R13 = 13,
+ UNW_OR1K_R14 = 14,
+ UNW_OR1K_R15 = 15,
+ UNW_OR1K_R16 = 16,
+ UNW_OR1K_R17 = 17,
+ UNW_OR1K_R18 = 18,
+ UNW_OR1K_R19 = 19,
+ UNW_OR1K_R20 = 20,
+ UNW_OR1K_R21 = 21,
+ UNW_OR1K_R22 = 22,
+ UNW_OR1K_R23 = 23,
+ UNW_OR1K_R24 = 24,
+ UNW_OR1K_R25 = 25,
+ UNW_OR1K_R26 = 26,
+ UNW_OR1K_R27 = 27,
+ UNW_OR1K_R28 = 28,
+ UNW_OR1K_R29 = 29,
+ UNW_OR1K_R30 = 30,
+ UNW_OR1K_R31 = 31,
+};
+
+#endif
Added: vendor/llvm-libunwind/dist/include/mach-o/compact_unwind_encoding.h
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ vendor/llvm-libunwind/dist/include/mach-o/compact_unwind_encoding.h Wed Sep 23 19:02:06 2015 (r288149)
@@ -0,0 +1,478 @@
+//===------------------ mach-o/compact_unwind_encoding.h ------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//
+// Darwin's alternative to dwarf based unwind encodings.
+//
+//===----------------------------------------------------------------------===//
+
+
+#ifndef __COMPACT_UNWIND_ENCODING__
+#define __COMPACT_UNWIND_ENCODING__
+
+#include <stdint.h>
+
+//
+// Compilers can emit standard Dwarf FDEs in the __TEXT,__eh_frame section
+// of object files. Or compilers can emit compact unwind information in
+// the __LD,__compact_unwind section.
+//
+// When the linker creates a final linked image, it will create a
+// __TEXT,__unwind_info section. This section is a small and fast way for the
+// runtime to access unwind info for any given function. If the compiler
+// emitted compact unwind info for the function, that compact unwind info will
+// be encoded in the __TEXT,__unwind_info section. If the compiler emitted
+// dwarf unwind info, the __TEXT,__unwind_info section will contain the offset
+// of the FDE in the __TEXT,__eh_frame section in the final linked image.
+//
+// Note: Previously, the linker would transform some dwarf unwind infos into
+// compact unwind info. But that is fragile and no longer done.
+
+
+//
+// The compact unwind endoding is a 32-bit value which encoded in an
+// architecture specific way, which registers to restore from where, and how
+// to unwind out of the function.
+//
+typedef uint32_t compact_unwind_encoding_t;
+
+
+// architecture independent bits
+enum {
+ UNWIND_IS_NOT_FUNCTION_START = 0x80000000,
+ UNWIND_HAS_LSDA = 0x40000000,
+ UNWIND_PERSONALITY_MASK = 0x30000000,
+};
+
+
+
+
+//
+// x86
+//
+// 1-bit: start
+// 1-bit: has lsda
+// 2-bit: personality index
+//
+// 4-bits: 0=old, 1=ebp based, 2=stack-imm, 3=stack-ind, 4=dwarf
+// ebp based:
+// 15-bits (5*3-bits per reg) register permutation
+// 8-bits for stack offset
+// frameless:
+// 8-bits stack size
+// 3-bits stack adjust
+// 3-bits register count
+// 10-bits register permutation
+//
+enum {
+ UNWIND_X86_MODE_MASK = 0x0F000000,
+ UNWIND_X86_MODE_EBP_FRAME = 0x01000000,
+ UNWIND_X86_MODE_STACK_IMMD = 0x02000000,
+ UNWIND_X86_MODE_STACK_IND = 0x03000000,
+ UNWIND_X86_MODE_DWARF = 0x04000000,
+
+ UNWIND_X86_EBP_FRAME_REGISTERS = 0x00007FFF,
+ UNWIND_X86_EBP_FRAME_OFFSET = 0x00FF0000,
+
+ UNWIND_X86_FRAMELESS_STACK_SIZE = 0x00FF0000,
+ UNWIND_X86_FRAMELESS_STACK_ADJUST = 0x0000E000,
+ UNWIND_X86_FRAMELESS_STACK_REG_COUNT = 0x00001C00,
+ UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF,
+
+ UNWIND_X86_DWARF_SECTION_OFFSET = 0x00FFFFFF,
+};
+
+enum {
+ UNWIND_X86_REG_NONE = 0,
+ UNWIND_X86_REG_EBX = 1,
+ UNWIND_X86_REG_ECX = 2,
+ UNWIND_X86_REG_EDX = 3,
+ UNWIND_X86_REG_EDI = 4,
+ UNWIND_X86_REG_ESI = 5,
+ UNWIND_X86_REG_EBP = 6,
+};
+
+//
+// For x86 there are four modes for the compact unwind encoding:
+// UNWIND_X86_MODE_EBP_FRAME:
+// EBP based frame where EBP is push on stack immediately after return address,
+// then ESP is moved to EBP. Thus, to unwind ESP is restored with the current
+// EPB value, then EBP is restored by popping off the stack, and the return
+// is done by popping the stack once more into the pc.
+// All non-volatile registers that need to be restored must have been saved
+// in a small range in the stack that starts EBP-4 to EBP-1020. The offset/4
+// is encoded in the UNWIND_X86_EBP_FRAME_OFFSET bits. The registers saved
+// are encoded in the UNWIND_X86_EBP_FRAME_REGISTERS bits as five 3-bit entries.
+// Each entry contains which register to restore.
+// UNWIND_X86_MODE_STACK_IMMD:
+// A "frameless" (EBP not used as frame pointer) function with a small
+// constant stack size. To return, a constant (encoded in the compact
+// unwind encoding) is added to the ESP. Then the return is done by
+// popping the stack into the pc.
+// All non-volatile registers that need to be restored must have been saved
+// on the stack immediately after the return address. The stack_size/4 is
+// encoded in the UNWIND_X86_FRAMELESS_STACK_SIZE (max stack size is 1024).
+// The number of registers saved is encoded in UNWIND_X86_FRAMELESS_STACK_REG_COUNT.
+// UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION constains which registers were
+// saved and their order.
+// UNWIND_X86_MODE_STACK_IND:
+// A "frameless" (EBP not used as frame pointer) function large constant
+// stack size. This case is like the previous, except the stack size is too
+// large to encode in the compact unwind encoding. Instead it requires that
+// the function contains "subl $nnnnnnnn,ESP" in its prolog. The compact
+// encoding contains the offset to the nnnnnnnn value in the function in
+// UNWIND_X86_FRAMELESS_STACK_SIZE.
+// UNWIND_X86_MODE_DWARF:
+// No compact unwind encoding is available. Instead the low 24-bits of the
+// compact encoding is the offset of the dwarf FDE in the __eh_frame section.
+// This mode is never used in object files. It is only generated by the
+// linker in final linked images which have only dwarf unwind info for a
+// function.
+//
+// The permutation encoding is a Lehmer code sequence encoded into a
+// single variable-base number so we can encode the ordering of up to
+// six registers in a 10-bit space.
+//
+// The following is the algorithm used to create the permutation encoding used
+// with frameless stacks. It is passed the number of registers to be saved and
+// an array of the register numbers saved.
+//
+//uint32_t permute_encode(uint32_t registerCount, const uint32_t registers[6])
+//{
+// uint32_t renumregs[6];
+// for (int i=6-registerCount; i < 6; ++i) {
+// int countless = 0;
+// for (int j=6-registerCount; j < i; ++j) {
+// if ( registers[j] < registers[i] )
+// ++countless;
+// }
+// renumregs[i] = registers[i] - countless -1;
+// }
+// uint32_t permutationEncoding = 0;
+// switch ( registerCount ) {
+// case 6:
+// permutationEncoding |= (120*renumregs[0] + 24*renumregs[1]
+// + 6*renumregs[2] + 2*renumregs[3]
+// + renumregs[4]);
+// break;
+// case 5:
+// permutationEncoding |= (120*renumregs[1] + 24*renumregs[2]
+// + 6*renumregs[3] + 2*renumregs[4]
+// + renumregs[5]);
+// break;
+// case 4:
+// permutationEncoding |= (60*renumregs[2] + 12*renumregs[3]
+// + 3*renumregs[4] + renumregs[5]);
+// break;
+// case 3:
+// permutationEncoding |= (20*renumregs[3] + 4*renumregs[4]
+// + renumregs[5]);
+// break;
+// case 2:
+// permutationEncoding |= (5*renumregs[4] + renumregs[5]);
+// break;
+// case 1:
+// permutationEncoding |= (renumregs[5]);
+// break;
+// }
+// return permutationEncoding;
+//}
+//
+
+
+
+
+//
+// x86_64
+//
+// 1-bit: start
+// 1-bit: has lsda
+// 2-bit: personality index
+//
+// 4-bits: 0=old, 1=rbp based, 2=stack-imm, 3=stack-ind, 4=dwarf
+// rbp based:
+// 15-bits (5*3-bits per reg) register permutation
+// 8-bits for stack offset
+// frameless:
+// 8-bits stack size
+// 3-bits stack adjust
+// 3-bits register count
+// 10-bits register permutation
+//
+enum {
+ UNWIND_X86_64_MODE_MASK = 0x0F000000,
+ UNWIND_X86_64_MODE_RBP_FRAME = 0x01000000,
+ UNWIND_X86_64_MODE_STACK_IMMD = 0x02000000,
+ UNWIND_X86_64_MODE_STACK_IND = 0x03000000,
+ UNWIND_X86_64_MODE_DWARF = 0x04000000,
+
+ UNWIND_X86_64_RBP_FRAME_REGISTERS = 0x00007FFF,
+ UNWIND_X86_64_RBP_FRAME_OFFSET = 0x00FF0000,
+
+ UNWIND_X86_64_FRAMELESS_STACK_SIZE = 0x00FF0000,
+ UNWIND_X86_64_FRAMELESS_STACK_ADJUST = 0x0000E000,
+ UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT = 0x00001C00,
+ UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF,
+
+ UNWIND_X86_64_DWARF_SECTION_OFFSET = 0x00FFFFFF,
+};
+
+enum {
+ UNWIND_X86_64_REG_NONE = 0,
+ UNWIND_X86_64_REG_RBX = 1,
+ UNWIND_X86_64_REG_R12 = 2,
+ UNWIND_X86_64_REG_R13 = 3,
+ UNWIND_X86_64_REG_R14 = 4,
+ UNWIND_X86_64_REG_R15 = 5,
+ UNWIND_X86_64_REG_RBP = 6,
+};
+//
+// For x86_64 there are four modes for the compact unwind encoding:
+// UNWIND_X86_64_MODE_RBP_FRAME:
+// RBP based frame where RBP is push on stack immediately after return address,
+// then RSP is moved to RBP. Thus, to unwind RSP is restored with the current
+// EPB value, then RBP is restored by popping off the stack, and the return
+// is done by popping the stack once more into the pc.
+// All non-volatile registers that need to be restored must have been saved
+// in a small range in the stack that starts RBP-8 to RBP-2040. The offset/8
+// is encoded in the UNWIND_X86_64_RBP_FRAME_OFFSET bits. The registers saved
+// are encoded in the UNWIND_X86_64_RBP_FRAME_REGISTERS bits as five 3-bit entries.
+// Each entry contains which register to restore.
+// UNWIND_X86_64_MODE_STACK_IMMD:
+// A "frameless" (RBP not used as frame pointer) function with a small
+// constant stack size. To return, a constant (encoded in the compact
+// unwind encoding) is added to the RSP. Then the return is done by
+// popping the stack into the pc.
+// All non-volatile registers that need to be restored must have been saved
+// on the stack immediately after the return address. The stack_size/8 is
+// encoded in the UNWIND_X86_64_FRAMELESS_STACK_SIZE (max stack size is 2048).
+// The number of registers saved is encoded in UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT.
+// UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION constains which registers were
+// saved and their order.
+// UNWIND_X86_64_MODE_STACK_IND:
+// A "frameless" (RBP not used as frame pointer) function large constant
+// stack size. This case is like the previous, except the stack size is too
+// large to encode in the compact unwind encoding. Instead it requires that
+// the function contains "subq $nnnnnnnn,RSP" in its prolog. The compact
+// encoding contains the offset to the nnnnnnnn value in the function in
+// UNWIND_X86_64_FRAMELESS_STACK_SIZE.
+// UNWIND_X86_64_MODE_DWARF:
+// No compact unwind encoding is available. Instead the low 24-bits of the
+// compact encoding is the offset of the dwarf FDE in the __eh_frame section.
+// This mode is never used in object files. It is only generated by the
+// linker in final linked images which have only dwarf unwind info for a
+// function.
+//
+
+
+// ARM64
+//
+// 1-bit: start
+// 1-bit: has lsda
+// 2-bit: personality index
+//
+// 4-bits: 4=frame-based, 3=dwarf, 2=frameless
+// frameless:
+// 12-bits of stack size
+// frame-based:
+// 4-bits D reg pairs saved
+// 5-bits X reg pairs saved
+// dwarf:
+// 24-bits offset of dwarf FDE in __eh_frame section
+//
+enum {
+ UNWIND_ARM64_MODE_MASK = 0x0F000000,
+ UNWIND_ARM64_MODE_FRAMELESS = 0x02000000,
+ UNWIND_ARM64_MODE_DWARF = 0x03000000,
+ UNWIND_ARM64_MODE_FRAME = 0x04000000,
+
+ UNWIND_ARM64_FRAME_X19_X20_PAIR = 0x00000001,
+ UNWIND_ARM64_FRAME_X21_X22_PAIR = 0x00000002,
+ UNWIND_ARM64_FRAME_X23_X24_PAIR = 0x00000004,
+ UNWIND_ARM64_FRAME_X25_X26_PAIR = 0x00000008,
+ UNWIND_ARM64_FRAME_X27_X28_PAIR = 0x00000010,
+ UNWIND_ARM64_FRAME_D8_D9_PAIR = 0x00000100,
+ UNWIND_ARM64_FRAME_D10_D11_PAIR = 0x00000200,
+ UNWIND_ARM64_FRAME_D12_D13_PAIR = 0x00000400,
+ UNWIND_ARM64_FRAME_D14_D15_PAIR = 0x00000800,
+
+ UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK = 0x00FFF000,
+ UNWIND_ARM64_DWARF_SECTION_OFFSET = 0x00FFFFFF,
+};
+// For arm64 there are three modes for the compact unwind encoding:
+// UNWIND_ARM64_MODE_FRAME:
+// This is a standard arm64 prolog where FP/LR are immediately pushed on the
+// stack, then SP is copied to FP. If there are any non-volatile registers
+// saved, then are copied into the stack frame in pairs in a contiguous
+// range right below the saved FP/LR pair. Any subset of the five X pairs
+// and four D pairs can be saved, but the memory layout must be in register
+// number order.
+// UNWIND_ARM64_MODE_FRAMELESS:
+// A "frameless" leaf function, where FP/LR are not saved. The return address
+// remains in LR throughout the function. If any non-volatile registers
+// are saved, they must be pushed onto the stack before any stack space is
+// allocated for local variables. The stack sized (including any saved
+// non-volatile registers) divided by 16 is encoded in the bits
+// UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK.
+// UNWIND_ARM64_MODE_DWARF:
+// No compact unwind encoding is available. Instead the low 24-bits of the
+// compact encoding is the offset of the dwarf FDE in the __eh_frame section.
+// This mode is never used in object files. It is only generated by the
+// linker in final linked images which have only dwarf unwind info for a
+// function.
+//
+
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Relocatable Object Files: __LD,__compact_unwind
+//
+////////////////////////////////////////////////////////////////////////////////
+
+//
+// A compiler can generated compact unwind information for a function by adding
+// a "row" to the __LD,__compact_unwind section. This section has the
+// S_ATTR_DEBUG bit set, so the section will be ignored by older linkers.
+// It is removed by the new linker, so never ends up in final executables.
+// This section is a table, initially with one row per function (that needs
+// unwind info). The table columns and some conceptual entries are:
+//
+// range-start pointer to start of function/range
+// range-length
+// compact-unwind-encoding 32-bit encoding
+// personality-function or zero if no personality function
+// lsda or zero if no LSDA data
+//
+// The length and encoding fields are 32-bits. The other are all pointer sized.
+//
+// In x86_64 assembly, these entry would look like:
+//
+// .section __LD,__compact_unwind,regular,debug
+//
+// #compact unwind for _foo
+// .quad _foo
+// .set L1,LfooEnd-_foo
+// .long L1
+// .long 0x01010001
+// .quad 0
+// .quad 0
+//
+// #compact unwind for _bar
+// .quad _bar
+// .set L2,LbarEnd-_bar
+// .long L2
+// .long 0x01020011
+// .quad __gxx_personality
+// .quad except_tab1
+//
+//
+// Notes: There is no need for any labels in the the __compact_unwind section.
+// The use of the .set directive is to force the evaluation of the
+// range-length at assembly time, instead of generating relocations.
+//
+// To support future compiler optimizations where which non-volatile registers
+// are saved changes within a function (e.g. delay saving non-volatiles until
+// necessary), there can by multiple lines in the __compact_unwind table for one
+// function, each with a different (non-overlapping) range and each with
+// different compact unwind encodings that correspond to the non-volatiles
+// saved at that range of the function.
+//
+// If a particular function is so wacky that there is no compact unwind way
+// to encode it, then the compiler can emit traditional dwarf unwind info.
+// The runtime will use which ever is available.
+//
+// Runtime support for compact unwind encodings are only available on 10.6
+// and later. So, the compiler should not generate it when targeting pre-10.6.
+
+
+
+
+////////////////////////////////////////////////////////////////////////////////
+//
+// Final Linked Images: __TEXT,__unwind_info
+//
+////////////////////////////////////////////////////////////////////////////////
+
+//
+// The __TEXT,__unwind_info section is laid out for an efficient two level lookup.
+// The header of the section contains a coarse index that maps function address
+// to the page (4096 byte block) containing the unwind info for that function.
+//
+
+#define UNWIND_SECTION_VERSION 1
+struct unwind_info_section_header
+{
+ uint32_t version; // UNWIND_SECTION_VERSION
+ uint32_t commonEncodingsArraySectionOffset;
+ uint32_t commonEncodingsArrayCount;
+ uint32_t personalityArraySectionOffset;
+ uint32_t personalityArrayCount;
+ uint32_t indexSectionOffset;
+ uint32_t indexCount;
+ // compact_unwind_encoding_t[]
+ // uint32_t personalities[]
+ // unwind_info_section_header_index_entry[]
+ // unwind_info_section_header_lsda_index_entry[]
+};
+
+struct unwind_info_section_header_index_entry
+{
+ uint32_t functionOffset;
+ uint32_t secondLevelPagesSectionOffset; // section offset to start of regular or compress page
+ uint32_t lsdaIndexArraySectionOffset; // section offset to start of lsda_index array for this range
+};
+
+struct unwind_info_section_header_lsda_index_entry
+{
+ uint32_t functionOffset;
+ uint32_t lsdaOffset;
*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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