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interpret.cc (compile): Handle case where table entry is outside of PC range.

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* interpret.cc (compile): Handle case where table entry is
	outside of PC range.

From-SVN: r101298
This commit is contained in:
Tom Tromey 2005-06-24 22:04:11 +00:00 committed by Tom Tromey
parent 011646f5ef
commit 6a05987083
2 changed files with 10 additions and 1 deletions
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5
libjava/ChangeLog
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@ -1,3 +1,8 @@
2005-06-24 Tom Tromey <tromey@redhat.com>
* interpret.cc (compile): Handle case where table entry is
outside of PC range.
2005-06-23 Bryce McKinlay <mckinlay@redhat.com>
* testsuite/libjava.compile/PR20697.java: New test-case.

6
libjava/interpret.cc
View File

@ -1,6 +1,6 @@
// interpret.cc - Code for the interpreter
/* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation
/* Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
This file is part of libgcj.
@ -763,6 +763,10 @@ _Jv_InterpMethod::compile (const void * const *insn_targets)
for (int i = 0; i < line_table_len; i++)
{
int byte_pc = line_table[i].bytecode_pc;
// It isn't worth throwing an exception if this table is
// corrupted, but at the same time we don't want a crash.
if (byte_pc < 0 || byte_pc >= code_length)
byte_pc = 0;
line_table[i].pc = &insns[pc_mapping[byte_pc]];
}