63 // address that composes the last_Java_frame will be in an accessible location
64 // so calls from Java to native store that pc (or one good enough to locate
65 // the oopmap) in the frame anchor. Since the frames that call from Java to
66 // native are never deoptimized we never need to patch the pc and so this
67 // is acceptable.
68 volatile address _last_Java_pc;
69
70 // tells whether the last Java frame is set
71 // It is important that when last_Java_sp != NULL that the rest of the frame
72 // anchor (including platform specific) all be valid.
73
74 bool has_last_Java_frame() const { return _last_Java_sp != NULL; }
75 // This is very dangerous unless sp == NULL
76 // Invalidate the anchor so that has_last_frame is false
77 // and no one should look at the other fields.
78 void zap(void) { _last_Java_sp = NULL; }
79
80 #ifdef TARGET_ARCH_x86
81 # include "javaFrameAnchor_x86.hpp"
82 #endif
83 #ifdef TARGET_ARCH_sparc
84 # include "javaFrameAnchor_sparc.hpp"
85 #endif
86 #ifdef TARGET_ARCH_zero
87 # include "javaFrameAnchor_zero.hpp"
88 #endif
89 #ifdef TARGET_ARCH_arm
90 # include "javaFrameAnchor_arm.hpp"
91 #endif
92 #ifdef TARGET_ARCH_ppc
93 # include "javaFrameAnchor_ppc.hpp"
94 #endif
95
96
97 public:
98 JavaFrameAnchor() { clear(); }
99 JavaFrameAnchor(JavaFrameAnchor *src) { copy(src); }
100
101 void set_last_Java_pc(address pc) { _last_Java_pc = pc; }
102
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63 // address that composes the last_Java_frame will be in an accessible location
64 // so calls from Java to native store that pc (or one good enough to locate
65 // the oopmap) in the frame anchor. Since the frames that call from Java to
66 // native are never deoptimized we never need to patch the pc and so this
67 // is acceptable.
68 volatile address _last_Java_pc;
69
70 // tells whether the last Java frame is set
71 // It is important that when last_Java_sp != NULL that the rest of the frame
72 // anchor (including platform specific) all be valid.
73
74 bool has_last_Java_frame() const { return _last_Java_sp != NULL; }
75 // This is very dangerous unless sp == NULL
76 // Invalidate the anchor so that has_last_frame is false
77 // and no one should look at the other fields.
78 void zap(void) { _last_Java_sp = NULL; }
79
80 #ifdef TARGET_ARCH_x86
81 # include "javaFrameAnchor_x86.hpp"
82 #endif
83 #ifdef TARGET_ARCH_aarch64
84 # include "javaFrameAnchor_aarch64.hpp"
85 #endif
86 #ifdef TARGET_ARCH_sparc
87 # include "javaFrameAnchor_sparc.hpp"
88 #endif
89 #ifdef TARGET_ARCH_zero
90 # include "javaFrameAnchor_zero.hpp"
91 #endif
92 #ifdef TARGET_ARCH_arm
93 # include "javaFrameAnchor_arm.hpp"
94 #endif
95 #ifdef TARGET_ARCH_ppc
96 # include "javaFrameAnchor_ppc.hpp"
97 #endif
98
99
100 public:
101 JavaFrameAnchor() { clear(); }
102 JavaFrameAnchor(JavaFrameAnchor *src) { copy(src); }
103
104 void set_last_Java_pc(address pc) { _last_Java_pc = pc; }
105
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