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src/jdk.hotspot.agent/linux/native/libsaproc/proc_service.h

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   1 /*
   2  * Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef _PROC_SERVICE_H_
  26 #define _PROC_SERVICE_H_
  27 
  28 #include <stdio.h>
  29 #include <thread_db.h>
  30 #include "jni.h"

  31 
  32 // Linux does not have the proc service library, though it does provide the
  33 // thread_db library which can be used to manipulate threads without having
  34 // to know the details of NPTL
  35 
  36 // copied from Solaris "proc_service.h"
  37 typedef enum {
  38         PS_OK,          /* generic "call succeeded" */
  39         PS_ERR,         /* generic error */
  40         PS_BADPID,      /* bad process handle */
  41         PS_BADLID,      /* bad lwp identifier */
  42         PS_BADADDR,     /* bad address */
  43         PS_NOSYM,       /* p_lookup() could not find given symbol */
  44         PS_NOFREGS      /* FPU register set not available for given lwp */
  45 } ps_err_e;
  46 
  47 // ps_getpid() is only defined on Linux to return a thread's process ID
  48 JNIEXPORT pid_t JNICALL
  49 ps_getpid(struct ps_prochandle *ph);
  50 
  51 // ps_pglobal_lookup() looks up the symbol sym_name in the symbol table
  52 // of the load object object_name in the target process identified by ph.
  53 // It returns the symbol's value as an address in the target process in
  54 // *sym_addr.


  61 JNIEXPORT ps_err_e JNICALL
  62 ps_pdread(struct ps_prochandle *ph, psaddr_t  addr,
  63                    void *buf, size_t size);
  64 
  65 // write "size" bytes of data to debuggee at address "addr"
  66 JNIEXPORT ps_err_e JNICALL
  67 ps_pdwrite(struct ps_prochandle *ph, psaddr_t addr,
  68                     const void *buf, size_t size);
  69 
  70 JNIEXPORT ps_err_e JNICALL
  71 ps_lsetfpregs(struct ps_prochandle *ph, lwpid_t lid, const prfpregset_t *fpregs);
  72 
  73 JNIEXPORT ps_err_e JNICALL
  74 ps_lsetregs(struct ps_prochandle *ph, lwpid_t lid, const prgregset_t gregset);
  75 
  76 JNIEXPORT ps_err_e JNICALL
  77 ps_lgetfpregs(struct ps_prochandle *ph, lwpid_t lid, prfpregset_t *fpregs);
  78 
  79 JNIEXPORT ps_err_e JNICALL
  80 ps_lgetregs(struct ps_prochandle *ph, lwpid_t lid, prgregset_t gregset);
  81 
  82 // new libthread_db of NPTL seem to require this symbol
  83 JNIEXPORT ps_err_e JNICALL
  84 ps_get_thread_area();
  85 
  86 #endif /* _PROC_SERVICE_H_ */
   1 /*
   2  * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef _PROC_SERVICE_H_
  26 #define _PROC_SERVICE_H_
  27 
  28 #include <stdio.h>
  29 #include <sys/procfs.h>
  30 #include "jni.h"
  31 #include "libproc.h"
  32 



  33 
  34 // copied from Solaris "proc_service.h"
  35 typedef enum {
  36         PS_OK,          /* generic "call succeeded" */
  37         PS_ERR,         /* generic error */
  38         PS_BADPID,      /* bad process handle */
  39         PS_BADLID,      /* bad lwp identifier */
  40         PS_BADADDR,     /* bad address */
  41         PS_NOSYM,       /* p_lookup() could not find given symbol */
  42         PS_NOFREGS      /* FPU register set not available for given lwp */
  43 } ps_err_e;
  44 
  45 // ps_getpid() is only defined on Linux to return a thread's process ID
  46 JNIEXPORT pid_t JNICALL
  47 ps_getpid(struct ps_prochandle *ph);
  48 
  49 // ps_pglobal_lookup() looks up the symbol sym_name in the symbol table
  50 // of the load object object_name in the target process identified by ph.
  51 // It returns the symbol's value as an address in the target process in
  52 // *sym_addr.


  59 JNIEXPORT ps_err_e JNICALL
  60 ps_pdread(struct ps_prochandle *ph, psaddr_t  addr,
  61                    void *buf, size_t size);
  62 
  63 // write "size" bytes of data to debuggee at address "addr"
  64 JNIEXPORT ps_err_e JNICALL
  65 ps_pdwrite(struct ps_prochandle *ph, psaddr_t addr,
  66                     const void *buf, size_t size);
  67 
  68 JNIEXPORT ps_err_e JNICALL
  69 ps_lsetfpregs(struct ps_prochandle *ph, lwpid_t lid, const prfpregset_t *fpregs);
  70 
  71 JNIEXPORT ps_err_e JNICALL
  72 ps_lsetregs(struct ps_prochandle *ph, lwpid_t lid, const prgregset_t gregset);
  73 
  74 JNIEXPORT ps_err_e JNICALL
  75 ps_lgetfpregs(struct ps_prochandle *ph, lwpid_t lid, prfpregset_t *fpregs);
  76 
  77 JNIEXPORT ps_err_e JNICALL
  78 ps_lgetregs(struct ps_prochandle *ph, lwpid_t lid, prgregset_t gregset);




  79 
  80 #endif /* _PROC_SERVICE_H_ */
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