790f17188a
Compiling GDB with '-fvisibility=hidden' removes the symbols that
should be exported.
This patch explicitly marks them as visible.
gdb/ChangeLog:
2020-01-16 Pedro Alves <palves@redhat.com>
Norbert Lange <nolange79@gmail.com>
PR build/24805
* gdbsupport/gdb_proc_service.h (PS_EXPORT): New.
(ps_get_thread_area, ps_getpid, ps_lcontinue, ps_lgetfpregs)
(ps_lgetregs, ps_lsetfpregs, ps_lsetregs, ps_lstop, ps_pcontinue)
(ps_pdread, ps_pdwrite, ps_pglobal_lookup, ps_pstop, ps_ptread)
(ps_ptwrite, ps_lgetxregs, ps_lgetxregsize, ps_lsetxregs)
(ps_plog): Redeclare exported functions with default visibility.
203 lines
6.3 KiB
C
203 lines
6.3 KiB
C
/* <proc_service.h> replacement for systems that don't have it.
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Copyright (C) 2000-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef COMMON_GDB_PROC_SERVICE_H
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#define COMMON_GDB_PROC_SERVICE_H
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#include <sys/types.h>
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#ifdef HAVE_PROC_SERVICE_H
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/* glibc's proc_service.h doesn't wrap itself with extern "C". Need
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to do it ourselves. */
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EXTERN_C_PUSH
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#include <proc_service.h>
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EXTERN_C_POP
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#else /* HAVE_PROC_SERVICE_H */
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/* The following fallback definitions have been imported and adjusted
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from glibc's proc_service.h */
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/* Callback interface for libthread_db, functions users must define.
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Copyright (C) 1999,2002,2003 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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/* The definitions in this file must correspond to those in the debugger. */
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#ifdef HAVE_SYS_PROCFS_H
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#include <sys/procfs.h>
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#endif
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/* Not all platforms bring in <linux/elf.h> via <sys/procfs.h>. If
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<sys/procfs.h> wasn't enough to find elf_fpregset_t, try the kernel
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headers also (but don't if we don't need to). */
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#ifndef HAVE_ELF_FPREGSET_T
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# ifdef HAVE_LINUX_ELF_H
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# include <linux/elf.h>
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# endif
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#endif
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EXTERN_C_PUSH
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/* Functions in this interface return one of these status codes. */
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typedef enum
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{
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PS_OK, /* Generic "call succeeded". */
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PS_ERR, /* Generic error. */
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PS_BADPID, /* Bad process handle. */
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PS_BADLID, /* Bad LWP identifier. */
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PS_BADADDR, /* Bad address. */
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PS_NOSYM, /* Could not find given symbol. */
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PS_NOFREGS /* FPU register set not available for given LWP. */
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} ps_err_e;
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#ifndef HAVE_LWPID_T
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typedef unsigned int lwpid_t;
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#endif
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#ifndef HAVE_PSADDR_T
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typedef void *psaddr_t;
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#endif
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#ifndef HAVE_PRGREGSET_T
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typedef elf_gregset_t prgregset_t;
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#endif
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#ifndef HAVE_PRFPREGSET_T
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typedef elf_fpregset_t prfpregset_t;
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#endif
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/* This type is opaque in this interface. It's defined by the user of
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libthread_db. GDB's version is defined below. */
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struct ps_prochandle;
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/* Read or write process memory at the given address. */
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extern ps_err_e ps_pdread (struct ps_prochandle *,
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psaddr_t, void *, size_t);
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extern ps_err_e ps_pdwrite (struct ps_prochandle *,
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psaddr_t, const void *, size_t);
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extern ps_err_e ps_ptread (struct ps_prochandle *,
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psaddr_t, void *, size_t);
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extern ps_err_e ps_ptwrite (struct ps_prochandle *,
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psaddr_t, const void *, size_t);
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/* Get and set the given LWP's general or FPU register set. */
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extern ps_err_e ps_lgetregs (struct ps_prochandle *,
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lwpid_t, prgregset_t);
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extern ps_err_e ps_lsetregs (struct ps_prochandle *,
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lwpid_t, const prgregset_t);
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extern ps_err_e ps_lgetfpregs (struct ps_prochandle *,
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lwpid_t, prfpregset_t *);
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extern ps_err_e ps_lsetfpregs (struct ps_prochandle *,
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lwpid_t, const prfpregset_t *);
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/* Return the PID of the process. */
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extern pid_t ps_getpid (struct ps_prochandle *);
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/* Fetch the special per-thread address associated with the given LWP.
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This call is only used on a few platforms (most use a normal register).
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The meaning of the `int' parameter is machine-dependent. */
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extern ps_err_e ps_get_thread_area (struct ps_prochandle *,
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lwpid_t, int, psaddr_t *);
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/* Look up the named symbol in the named DSO in the symbol tables
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associated with the process being debugged, filling in *SYM_ADDR
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with the corresponding run-time address. */
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extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *,
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const char *object_name,
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const char *sym_name,
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psaddr_t *sym_addr);
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/* Stop or continue the entire process. */
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extern ps_err_e ps_pstop (struct ps_prochandle *);
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extern ps_err_e ps_pcontinue (struct ps_prochandle *);
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/* Stop or continue the given LWP alone. */
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extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t);
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extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t);
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/* The following are only defined in/called by Solaris. */
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/* Get size of extra register set. */
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extern ps_err_e ps_lgetxregsize (struct ps_prochandle *ph,
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lwpid_t lwpid, int *xregsize);
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/* Get extra register set. */
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extern ps_err_e ps_lgetxregs (struct ps_prochandle *ph, lwpid_t lwpid,
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caddr_t xregset);
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extern ps_err_e ps_lsetxregs (struct ps_prochandle *ph, lwpid_t lwpid,
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caddr_t xregset);
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/* Log a message (sends to gdb_stderr). */
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extern void ps_plog (const char *fmt, ...);
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EXTERN_C_POP
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#endif /* HAVE_PROC_SERVICE_H */
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/* Make sure we export the needed symbols, in case GDB is built with
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-fvisibility=hidden. */
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#define PS_EXPORT(SYM) \
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__attribute__((visibility ("default"))) typeof (SYM) SYM
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PS_EXPORT (ps_get_thread_area);
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PS_EXPORT (ps_getpid);
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PS_EXPORT (ps_lcontinue);
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PS_EXPORT (ps_lgetfpregs);
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PS_EXPORT (ps_lgetregs);
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PS_EXPORT (ps_lsetfpregs);
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PS_EXPORT (ps_lsetregs);
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PS_EXPORT (ps_lstop);
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PS_EXPORT (ps_pcontinue);
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PS_EXPORT (ps_pdread);
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PS_EXPORT (ps_pdwrite);
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PS_EXPORT (ps_pglobal_lookup);
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PS_EXPORT (ps_pstop);
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PS_EXPORT (ps_ptread);
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PS_EXPORT (ps_ptwrite);
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#ifdef __sun__
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PS_EXPORT (ps_lgetxregs);
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PS_EXPORT (ps_lgetxregsize);
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PS_EXPORT (ps_lsetxregs);
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PS_EXPORT (ps_plog);
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#endif
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#endif /* COMMON_GDB_PROC_SERVICE_H */
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