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on Apr 11, 2012 7:55 AM by 929850
Disassembling JRockit CodeCache
Apr 11, 2012 7:55 AM
Hi - I m trying to disassemble the CodeCache to see what the generated code for compiled Java methods looks like.
Heres what I m doing below. Does it look correct? If yes could folks please add another option dump_codemap_disasm so I don't have to disassemble these blocks on my own.
[ a ] jrcmd 26138 dump_codemap
[ b ] look in Other64.map
" 0001:00007ff6d2c126e0 org/eclipse/equinox/launcher/Main.main([Ljava/lang/String;)V 00007ff6d2c126e0 f org/eclipse/equinox/launcher/Main 00000000000000b7"
[ c ] gdb -p pid
(gdb) x/46i 0x7ff6d2c126e0
0x7ff6d2c126e0: sub $0x8,%rsp
0x7ff6d2c126e4: test %eax,0x7fffe000
0x7ff6d2c126eb: mov 0x8(%rdi),%ecx
0x7ff6d2c126ee: xor %rsi,%rsi
0x7ff6d2c126f1: test %rcx,%rcx
0x7ff6d2c126f4: je 0x7ff6d2c12711
0x7ff6d2c126f6: mov 0x8(%rcx),%eax
0x7ff6d2c126f9: mov %rcx,(%rsp)
0x7ff6d2c126fd: test %rax,%rax
0x7ff6d2c12700: je 0x7ff6d2c12711
0x7ff6d2c12702: mov (%rsp),%rsi
0x7ff6d2c12706: mov 0x8(%rsi),%esi
0x7ff6d2c12709: cmp %esi,(%rsi)
0x7ff6d2c1270b: callq 0x7ff6d2bc4180
0x7ff6d2c12711: pop %rcx
I have the same question
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