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comparison src/share/vm/runtime/globals.cpp @ 103:38a50dd839cf

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6619271: The -Xprintflags causes the VM to segv Summary: add null checks Reviewed-by: jrose, kvn
author never
date Thu, 03 Apr 2008 10:20:44 -0700
parents 183f41cf8bfe
children ba764ed4b6f2
comparison
equal deleted inserted replaced
102:f96100ac3d12 103:38a50dd839cf
66 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false"); 66 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false");
67 if (is_intx()) st->print("%-16ld", get_intx()); 67 if (is_intx()) st->print("%-16ld", get_intx());
68 if (is_uintx()) st->print("%-16lu", get_uintx()); 68 if (is_uintx()) st->print("%-16lu", get_uintx());
69 if (is_ccstr()) { 69 if (is_ccstr()) {
70 const char* cp = get_ccstr(); 70 const char* cp = get_ccstr();
71 const char* eol; 71 if (cp != NULL) {
72 while ((eol = strchr(cp, '\n')) != NULL) { 72 const char* eol;
73 char format_buffer[FORMAT_BUFFER_LEN]; 73 while ((eol = strchr(cp, '\n')) != NULL) {
74 size_t llen = pointer_delta(eol, cp, sizeof(char)); 74 char format_buffer[FORMAT_BUFFER_LEN];
75 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, 75 size_t llen = pointer_delta(eol, cp, sizeof(char));
76 "%%." SIZE_FORMAT "s", llen); 76 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN,
77 st->print(format_buffer, cp); 77 "%%." SIZE_FORMAT "s", llen);
78 st->cr(); 78 st->print(format_buffer, cp);
79 cp = eol+1; 79 st->cr();
80 st->print("%5s %-35s += ", "", name); 80 cp = eol+1;
81 st->print("%5s %-35s += ", "", name);
82 }
83 st->print("%-16s", cp);
81 } 84 }
82 st->print("%-16s", cp);
83 } 85 }
84 st->print(" %s", kind); 86 st->print(" %s", kind);
85 st->cr(); 87 st->cr();
86 } 88 }
87 89
92 st->print("-XX:%s=" INTX_FORMAT, name, get_intx()); 94 st->print("-XX:%s=" INTX_FORMAT, name, get_intx());
93 } else if (is_uintx()) { 95 } else if (is_uintx()) {
94 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx()); 96 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx());
95 } else if (is_ccstr()) { 97 } else if (is_ccstr()) {
96 st->print("-XX:%s=", name); 98 st->print("-XX:%s=", name);
97 // Need to turn embedded '\n's back into separate arguments 99 const char* cp = get_ccstr();
98 // Not so efficient to print one character at a time, 100 if (cp != NULL) {
99 // but the choice is to do the transformation to a buffer 101 // Need to turn embedded '\n's back into separate arguments
100 // and print that. And this need not be efficient. 102 // Not so efficient to print one character at a time,
101 for (const char* cp = get_ccstr(); *cp != '\0'; cp += 1) { 103 // but the choice is to do the transformation to a buffer
102 switch (*cp) { 104 // and print that. And this need not be efficient.
103 default: 105 for (; *cp != '\0'; cp += 1) {
104 st->print("%c", *cp); 106 switch (*cp) {
105 break; 107 default:
106 case '\n': 108 st->print("%c", *cp);
107 st->print(" -XX:%s=", name); 109 break;
108 break; 110 case '\n':
111 st->print(" -XX:%s=", name);
112 break;
113 }
109 } 114 }
110 } 115 }
111 } else { 116 } else {
112 ShouldNotReachHere(); 117 ShouldNotReachHere();
113 } 118 }