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-rw-r--r--include/__libunwind_config.h55
-rw-r--r--include/libunwind.h72
-rw-r--r--include/mach-o/compact_unwind_encoding.h32
-rw-r--r--include/unwind.h26
4 files changed, 144 insertions, 41 deletions
diff --git a/include/__libunwind_config.h b/include/__libunwind_config.h
index 63393d3..83f4f47 100644
--- a/include/__libunwind_config.h
+++ b/include/__libunwind_config.h
@@ -12,9 +12,58 @@
#if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \
!defined(__ARM_DWARF_EH__)
-#define _LIBUNWIND_ARM_EHABI 1
-#else
-#define _LIBUNWIND_ARM_EHABI 0
+#define _LIBUNWIND_ARM_EHABI
#endif
+#if defined(_LIBUNWIND_IS_NATIVE_ONLY)
+# if defined(__i386__)
+# define _LIBUNWIND_TARGET_I386
+# define _LIBUNWIND_CONTEXT_SIZE 8
+# define _LIBUNWIND_CURSOR_SIZE 19
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 9
+# elif defined(__x86_64__)
+# define _LIBUNWIND_TARGET_X86_64 1
+# define _LIBUNWIND_CONTEXT_SIZE 21
+# define _LIBUNWIND_CURSOR_SIZE 33
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 17
+# elif defined(__ppc__)
+# define _LIBUNWIND_TARGET_PPC 1
+# define _LIBUNWIND_CONTEXT_SIZE 117
+# define _LIBUNWIND_CURSOR_SIZE 128
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 113
+# elif defined(__aarch64__)
+# define _LIBUNWIND_TARGET_AARCH64 1
+# define _LIBUNWIND_CONTEXT_SIZE 66
+# define _LIBUNWIND_CURSOR_SIZE 78
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 96
+# elif defined(__arm__)
+# define _LIBUNWIND_TARGET_ARM 1
+# if defined(__ARM_WMMX)
+# define _LIBUNWIND_CONTEXT_SIZE 60
+# define _LIBUNWIND_CURSOR_SIZE 67
+# else
+# define _LIBUNWIND_CONTEXT_SIZE 42
+# define _LIBUNWIND_CURSOR_SIZE 49
+# endif
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 96
+# elif defined(__or1k__)
+# define _LIBUNWIND_TARGET_OR1K 1
+# define _LIBUNWIND_CONTEXT_SIZE 16
+# define _LIBUNWIND_CURSOR_SIZE 28
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 32
+# else
+# error "Unsupported architecture."
+# endif
+#else // !_LIBUNWIND_IS_NATIVE_ONLY
+# define _LIBUNWIND_TARGET_I386
+# define _LIBUNWIND_TARGET_X86_64 1
+# define _LIBUNWIND_TARGET_PPC 1
+# define _LIBUNWIND_TARGET_AARCH64 1
+# define _LIBUNWIND_TARGET_ARM 1
+# define _LIBUNWIND_TARGET_OR1K 1
+# define _LIBUNWIND_CONTEXT_SIZE 128
+# define _LIBUNWIND_CURSOR_SIZE 140
+# define _LIBUNWIND_HIGHEST_DWARF_REGISTER 120
+#endif // _LIBUNWIND_IS_NATIVE_ONLY
+
#endif // ____LIBUNWIND_CONFIG_H__
diff --git a/include/libunwind.h b/include/libunwind.h
index 4a75a7b..cd09037 100644
--- a/include/libunwind.h
+++ b/include/libunwind.h
@@ -6,7 +6,7 @@
// Source Licenses. See LICENSE.TXT for details.
//
//
-// Compatible with libuwind API documented at:
+// Compatible with libunwind API documented at:
// http://www.nongnu.org/libunwind/man/libunwind(3).html
//
//===----------------------------------------------------------------------===//
@@ -20,12 +20,26 @@
#include <stddef.h>
#ifdef __APPLE__
- #include <Availability.h>
- #ifdef __arm__
- #define LIBUNWIND_AVAIL __attribute__((unavailable))
+ #if __clang__
+ #if __has_include(<Availability.h>)
+ #include <Availability.h>
+ #endif
+ #elif __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1050
+ #include <Availability.h>
+ #endif
+
+ #ifdef __arm__
+ #define LIBUNWIND_AVAIL __attribute__((unavailable))
+ #elif defined(__OSX_AVAILABLE_STARTING)
+ #define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0)
+ #else
+ #include <AvailabilityMacros.h>
+ #ifdef AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
+ #define LIBUNWIND_AVAIL AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER
#else
- #define LIBUNWIND_AVAIL __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_5_0)
+ #define LIBUNWIND_AVAIL __attribute__((unavailable))
#endif
+ #endif
#else
#define LIBUNWIND_AVAIL
#endif
@@ -46,19 +60,19 @@ enum {
};
struct unw_context_t {
- uint64_t data[128];
+ uint64_t data[_LIBUNWIND_CONTEXT_SIZE];
};
typedef struct unw_context_t unw_context_t;
struct unw_cursor_t {
- uint64_t data[140];
+ uint64_t data[_LIBUNWIND_CURSOR_SIZE];
};
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
+#if defined(_LIBUNWIND_ARM_EHABI)
typedef uint32_t unw_word_t;
typedef uint64_t unw_fpreg_t;
#else
@@ -75,8 +89,8 @@ struct unw_proc_info_t {
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 */
+ 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;
@@ -120,7 +134,7 @@ extern int unw_init_remote_thread(unw_cursor_t *, unw_addr_space_t, thread_t *);
#endif /* UNW_REMOTE */
/*
- * traditional libuwind "remote" API
+ * traditional libunwind "remote" API
* NOT IMPLEMENTED on Mac OS X
*
* extern int unw_init_remote(unw_cursor_t*, unw_addr_space_t,
@@ -497,4 +511,40 @@ enum {
// 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
diff --git a/include/mach-o/compact_unwind_encoding.h b/include/mach-o/compact_unwind_encoding.h
index b71c2c8..de14fd5 100644
--- a/include/mach-o/compact_unwind_encoding.h
+++ b/include/mach-o/compact_unwind_encoding.h
@@ -6,7 +6,7 @@
// Source Licenses. See LICENSE.TXT for details.
//
//
-// Darwin's alternative to dwarf based unwind encodings.
+// Darwin's alternative to DWARF based unwind encodings.
//
//===----------------------------------------------------------------------===//
@@ -17,7 +17,7 @@
#include <stdint.h>
//
-// Compilers can emit standard Dwarf FDEs in the __TEXT,__eh_frame section
+// 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.
//
@@ -26,10 +26,10 @@
// 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
+// 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
+// Note: Previously, the linker would transform some DWARF unwind infos into
// compact unwind info. But that is fragile and no longer done.
@@ -58,7 +58,7 @@ enum {
// 1-bit: has lsda
// 2-bit: personality index
//
-// 4-bits: 0=old, 1=ebp based, 2=stack-imm, 3=stack-ind, 4=dwarf
+// 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
@@ -128,9 +128,9 @@ enum {
// 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.
+// 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
+// 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
@@ -193,7 +193,7 @@ enum {
// 1-bit: has lsda
// 2-bit: personality index
//
-// 4-bits: 0=old, 1=rbp based, 2=stack-imm, 3=stack-ind, 4=dwarf
+// 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
@@ -262,9 +262,9 @@ enum {
// 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.
+// 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
+// linker in final linked images which have only DWARF unwind info for a
// function.
//
@@ -275,14 +275,14 @@ enum {
// 1-bit: has lsda
// 2-bit: personality index
//
-// 4-bits: 4=frame-based, 3=dwarf, 2=frameless
+// 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
+// DWARF:
+// 24-bits offset of DWARF FDE in __eh_frame section
//
enum {
UNWIND_ARM64_MODE_MASK = 0x0F000000,
@@ -320,9 +320,9 @@ enum {
// 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.
+// 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
+// linker in final linked images which have only DWARF unwind info for a
// function.
//
@@ -385,7 +385,7 @@ enum {
// 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.
+// 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
diff --git a/include/unwind.h b/include/unwind.h
index 94880bf..fc7d122 100644
--- a/include/unwind.h
+++ b/include/unwind.h
@@ -36,7 +36,7 @@ typedef enum {
_URC_HANDLER_FOUND = 6,
_URC_INSTALL_CONTEXT = 7,
_URC_CONTINUE_UNWIND = 8,
-#if _LIBUNWIND_ARM_EHABI
+#if defined(_LIBUNWIND_ARM_EHABI)
_URC_FAILURE = 9
#endif
} _Unwind_Reason_Code;
@@ -51,12 +51,13 @@ typedef enum {
typedef struct _Unwind_Context _Unwind_Context; // opaque
-#if _LIBUNWIND_ARM_EHABI
+#if defined(_LIBUNWIND_ARM_EHABI)
typedef uint32_t _Unwind_State;
static const _Unwind_State _US_VIRTUAL_UNWIND_FRAME = 0;
static const _Unwind_State _US_UNWIND_FRAME_STARTING = 1;
static const _Unwind_State _US_UNWIND_FRAME_RESUME = 2;
+static const _Unwind_State _US_ACTION_MASK = 3;
/* Undocumented flag for force unwinding. */
static const _Unwind_State _US_FORCE_UNWIND = 8;
@@ -122,13 +123,16 @@ struct _Unwind_Exception {
uintptr_t private_1; // non-zero means forced unwind
uintptr_t private_2; // holds sp that phase1 found for phase2 to use
#ifndef __LP64__
- // The gcc implementation of _Unwind_Exception used attribute mode on the
- // above fields which had the side effect of causing this whole struct to
+ // The implementation of _Unwind_Exception uses an attribute mode on the
+ // above fields which has the side effect of causing this whole struct to
// round up to 32 bytes in size. To be more explicit, we add pad fields
// added for binary compatibility.
uint32_t reserved[3];
#endif
-};
+ // The Itanium ABI requires that _Unwind_Exception objects are "double-word
+ // aligned". GCC has interpreted this to mean "use the maximum useful
+ // alignment for the target"; so do we.
+} __attribute__((__aligned__));
typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn)
(int version,
@@ -164,7 +168,7 @@ extern void _Unwind_Resume(_Unwind_Exception *exception_object);
#endif
extern void _Unwind_DeleteException(_Unwind_Exception *exception_object);
-#if _LIBUNWIND_ARM_EHABI
+#if defined(_LIBUNWIND_ARM_EHABI)
typedef enum {
_UVRSC_CORE = 0, /* integer register */
_UVRSC_VFP = 1, /* vfp */
@@ -204,7 +208,7 @@ _Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass,
_Unwind_VRS_DataRepresentation representation);
#endif
-#if !_LIBUNWIND_ARM_EHABI
+#if !defined(_LIBUNWIND_ARM_EHABI)
extern uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, int index);
extern void _Unwind_SetGR(struct _Unwind_Context *context, int index,
@@ -212,7 +216,7 @@ extern void _Unwind_SetGR(struct _Unwind_Context *context, int index,
extern uintptr_t _Unwind_GetIP(struct _Unwind_Context *context);
extern void _Unwind_SetIP(struct _Unwind_Context *, uintptr_t new_value);
-#else // _LIBUNWIND_ARM_EHABI
+#else // defined(_LIBUNWIND_ARM_EHABI)
#if defined(_LIBUNWIND_UNWIND_LEVEL1_EXTERNAL_LINKAGE)
#define _LIBUNWIND_EXPORT_UNWIND_LEVEL1 extern
@@ -251,7 +255,7 @@ void _Unwind_SetIP(struct _Unwind_Context *context, uintptr_t value) {
uintptr_t thumb_bit = _Unwind_GetGR(context, 15) & ((uintptr_t)0x1);
_Unwind_SetGR(context, 15, value | thumb_bit);
}
-#endif // _LIBUNWIND_ARM_EHABI
+#endif // defined(_LIBUNWIND_ARM_EHABI)
extern uintptr_t _Unwind_GetRegionStart(struct _Unwind_Context *context);
extern uintptr_t
@@ -321,7 +325,7 @@ extern void __deregister_frame(const void *fde);
// _Unwind_Find_FDE() will locate the FDE if the pc is in some function that has
// an associated FDE. Note, Mac OS X 10.6 and later, introduces "compact unwind
-// info" which the runtime uses in preference to dwarf unwind info. This
+// info" which the runtime uses in preference to DWARF unwind info. This
// function will only work if the target function has an FDE but no compact
// unwind info.
struct dwarf_eh_bases {
@@ -334,7 +338,7 @@ extern const void *_Unwind_Find_FDE(const void *pc, struct dwarf_eh_bases *);
// This function attempts to find the start (address of first instruction) of
// a function given an address inside the function. It only works if the
-// function has an FDE (dwarf unwind info).
+// function has an FDE (DWARF unwind info).
// This function is unimplemented on Mac OS X 10.6 and later. Instead, use
// _Unwind_Find_FDE() and look at the dwarf_eh_bases.func result.
extern void *_Unwind_FindEnclosingFunction(void *pc);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 23:22:42 +0000