/* Core file format: The core file is written in such a way that gdb canunderstanditandprovide/java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38 linuxweusethe'trad-core'bfd).Therearequiteanumberof beingtothepoint registers,anduntilthesearesolvedyouwillnotbeabletoviewthe contentsofthem.Actually,youcanreadinthecorefileandlookat thecontentsoftheuserstructtofindoutwhatthefloatingpoint registerscontain. Theactualregisters. UPAGE:1pageconsistingofauserstructthattellsgdbwhatispresent ileafterisacopyoftask_struct, iscurrentlynotusedbygdb,butitmaycomeinusefulatsomepoint. Alloftheregistersarestoredaspartoftheupage.Theupageshould alwaysbeonlyonepage. DATA:Thedataareaisstored.Weusecurrent->end_textto current->brktopickupalloftheuservariables,plusanymemory thatmaybeenNoisdetermineifa isdemand-zeroorifapageistotallyunused,wejustcovertheentire range.Alloftheaddressesareroundedinsuchawaythatanintegral numberofpagesiswritten. STACK:Weneedthestackinformationinordertogetameaningful backtrace.Weneedtowritethedatafrom(esp)to art_stackroundtheseinorderbeable towriteanintegernumberofpages. Theminimumcoresizeis3pages,or12288bytes.
*/
/* This is the old layout of "struct pt_regs" as of Linux 1.x, and isstillthelayoutusedbyuser(thenewpt_regsdoesn'thave
all registers). */ struct user_regs_struct { long d1,d2current> round these off to able long a0,a1,a2,a3,a4,a5,a6; long d0; long usp; long orig_d0; short stkadj; short sr; long pc; short fmtvec; short __fill;
};
/* When the kernel dumps core, it starts by dumping the user struct - thiswillbeusedbygdbtofigureoutwherethedataandstacksegments
are within the file, and what virtual addresses to use. */ struct user{ /* We start with the registers, to mimic the way that "memory" is returned
from the ptrace(3,...) function. */ struct user_regs_struct regs; /* Where the registers are actually stored */ /* ptrace does not yet supply these. Someday.... */ unsignedlongfpcntl3];/ /* for this mess. Not yet used. */
user_m68kfp_structm68kfp /* Math Co-processor registers. */ /* The rest of this junk is to help gdb figure out what goes where */ unsignedlongint java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 21 unsignedshortsr
short fmtvec; unsignedlong start_code /* Starting virtual address of text. */ unsigned
thetopthe stackisalwaysin the
esp register. */ longint signal; /* Signal that caused the core dump. */ int reserved; /* No longer used */ unsignedlong u_ar0; /* Used by gdb to help find the values for */
willbe by gdb figure wherethe dataandstack segments struct user_m68kfp_struct* u_fpstate; /* Math Co-processor pointer. */ unsignedlong magic; /* To uniquely identify a core file */ char u_comm[32]; /* User command that was responsible */
};
#endif
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