/* <proc_service.h> implementation.
- Copyright (C) 1999, 2000, 2002, 2007, 2008 Free Software Foundation, Inc.
+ Copyright (C) 1999-2020 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbcore.h"
#include "inferior.h"
+#include "gdbthread.h"
#include "symtab.h"
#include "target.h"
#include "regcache.h"
+#include "objfiles.h"
#include "gdb_proc_service.h"
-#include "gdb_stdint.h"
#include <sys/procfs.h>
#include "gregset.h"
\f
-/* Fix-up some broken systems. */
-
-/* The prototypes in <proc_service.h> are slightly different on older
- systems. Compensate for the discrepancies. */
-
-#ifdef PROC_SERVICE_IS_OLD
-typedef const struct ps_prochandle *gdb_ps_prochandle_t;
-typedef char *gdb_ps_read_buf_t;
-typedef char *gdb_ps_write_buf_t;
-typedef int gdb_ps_size_t;
-#else
-typedef struct ps_prochandle *gdb_ps_prochandle_t;
-typedef void *gdb_ps_read_buf_t;
-typedef const void *gdb_ps_write_buf_t;
-typedef size_t gdb_ps_size_t;
-#endif
-\f
-
-/* Building process ids. */
-
-#define BUILD_LWP(lwp, pid) ptid_build (pid, lwp, 0)
-\f
-
/* Helper functions. */
/* Convert a psaddr_t to a CORE_ADDR. */
else transfer them from the process. Returns PS_OK for success,
PS_ERR on failure.
- This is a helper function for ps_pdread, ps_pdwrite, ps_ptread and
- ps_ptwrite. */
+ This is a helper function for ps_pdread and ps_pdwrite. */
static ps_err_e
ps_xfer_memory (const struct ps_prochandle *ph, psaddr_t addr,
gdb_byte *buf, size_t len, int write)
{
- struct cleanup *old_chain = save_inferior_ptid ();
- int ret;
- CORE_ADDR core_addr = ps_addr_to_core_addr (addr);
+ scoped_restore_current_inferior restore_inferior;
+ set_current_inferior (ph->thread->inf);
+
+ scoped_restore_current_program_space restore_current_progspace;
+ set_current_program_space (ph->thread->inf->pspace);
- inferior_ptid = pid_to_ptid (ph->pid);
+ scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid);
+ inferior_ptid = ph->thread->ptid;
+
+ CORE_ADDR core_addr = ps_addr_to_core_addr (addr);
+ int ret;
if (write)
ret = target_write_memory (core_addr, buf, len);
else
ret = target_read_memory (core_addr, buf, len);
-
- do_cleanups (old_chain);
-
return (ret == 0 ? PS_OK : PS_ERR);
}
\f
-/* Stop the target process PH. */
-
-ps_err_e
-ps_pstop (gdb_ps_prochandle_t ph)
-{
- /* The process is always stopped when under control of GDB. */
- return PS_OK;
-}
-
-/* Resume the target process PH. */
-
-ps_err_e
-ps_pcontinue (gdb_ps_prochandle_t ph)
-{
- /* Pretend we did successfully continue the process. GDB will take
- care of it later on. */
- return PS_OK;
-}
-
-/* Stop the lightweight process LWPID within the target process PH. */
-
-ps_err_e
-ps_lstop (gdb_ps_prochandle_t ph, lwpid_t lwpid)
-{
- /* All lightweight processes are stopped when under control of GDB. */
- return PS_OK;
-}
-
-/* Resume the lightweight process (LWP) LWPID within the target
- process PH. */
-
-ps_err_e
-ps_lcontinue (gdb_ps_prochandle_t ph, lwpid_t lwpid)
-{
- /* Pretend we did successfully continue LWPID. GDB will take care
- of it later on. */
- return PS_OK;
-}
-
-/* Get the size of the architecture-dependent extra state registers
- for LWP LWPID within the target process PH and return it in
- *XREGSIZE. */
-
-ps_err_e
-ps_lgetxregsize (gdb_ps_prochandle_t ph, lwpid_t lwpid, int *xregsize)
-{
- /* FIXME: Not supported yet. */
- return PS_OK;
-}
-
-/* Get the extra state registers of LWP LWPID within the target
- process PH and store them in XREGSET. */
-
-ps_err_e
-ps_lgetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset)
-{
- /* FIXME: Not supported yet. */
- return PS_OK;
-}
-
-/* Set the extra state registers of LWP LWPID within the target
- process PH from XREGSET. */
-
-ps_err_e
-ps_lsetxregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, caddr_t xregset)
-{
- /* FIXME: Not supported yet. */
- return PS_OK;
-}
-
-/* Log (additional) diognostic information. */
-
-void
-ps_plog (const char *fmt, ...)
-{
- va_list args;
-
- va_start (args, fmt);
- vfprintf_filtered (gdb_stderr, fmt, args);
-}
-
/* Search for the symbol named NAME within the object named OBJ within
the target process PH. If the symbol is found the address of the
symbol is stored in SYM_ADDR. */
ps_err_e
-ps_pglobal_lookup (gdb_ps_prochandle_t ph, const char *obj,
+ps_pglobal_lookup (struct ps_prochandle *ph, const char *obj,
const char *name, psaddr_t *sym_addr)
{
- struct minimal_symbol *ms;
+ inferior *inf = ph->thread->inf;
+
+ scoped_restore_current_program_space restore_pspace;
+
+ set_current_program_space (inf->pspace);
/* FIXME: kettenis/2000-09-03: What should we do with OBJ? */
- ms = lookup_minimal_symbol (name, NULL, NULL);
- if (ms == NULL)
+ bound_minimal_symbol ms = lookup_minimal_symbol (name, NULL, NULL);
+ if (ms.minsym == NULL)
return PS_NOSYM;
- *sym_addr = core_addr_to_ps_addr (SYMBOL_VALUE_ADDRESS (ms));
+ *sym_addr = core_addr_to_ps_addr (BMSYMBOL_VALUE_ADDRESS (ms));
return PS_OK;
}
them into BUF. */
ps_err_e
-ps_pdread (gdb_ps_prochandle_t ph, psaddr_t addr,
- gdb_ps_read_buf_t buf, gdb_ps_size_t size)
+ps_pdread (struct ps_prochandle *ph, psaddr_t addr, void *buf, size_t size)
{
- return ps_xfer_memory (ph, addr, buf, size, 0);
+ return ps_xfer_memory (ph, addr, (gdb_byte *) buf, size, 0);
}
/* Write SIZE bytes from BUF into the target process PH at address ADDR. */
ps_err_e
-ps_pdwrite (gdb_ps_prochandle_t ph, psaddr_t addr,
- gdb_ps_write_buf_t buf, gdb_ps_size_t size)
+ps_pdwrite (struct ps_prochandle *ph, psaddr_t addr,
+ const void *buf, size_t size)
{
return ps_xfer_memory (ph, addr, (gdb_byte *) buf, size, 1);
}
-/* Read SIZE bytes from the target process PH at address ADDR and copy
- them into BUF. */
+/* Get a regcache for LWPID using its inferior's "main" architecture,
+ which is the register set libthread_db expects to be using. In
+ multi-arch debugging scenarios, the thread's architecture may
+ differ from the inferior's "main" architecture. */
-ps_err_e
-ps_ptread (gdb_ps_prochandle_t ph, psaddr_t addr,
- gdb_ps_read_buf_t buf, gdb_ps_size_t size)
+static struct regcache *
+get_ps_regcache (struct ps_prochandle *ph, lwpid_t lwpid)
{
- return ps_xfer_memory (ph, addr, (gdb_byte *) buf, size, 0);
-}
-
-/* Write SIZE bytes from BUF into the target process PH at address ADDR. */
-
-ps_err_e
-ps_ptwrite (gdb_ps_prochandle_t ph, psaddr_t addr,
- gdb_ps_write_buf_t buf, gdb_ps_size_t size)
-{
- return ps_xfer_memory (ph, addr, (gdb_byte *) buf, size, 1);
+ inferior *inf = ph->thread->inf;
+ return get_thread_arch_regcache (inf->process_target (),
+ ptid_t (inf->pid, lwpid),
+ inf->gdbarch);
}
/* Get the general registers of LWP LWPID within the target process PH
and store them in GREGSET. */
ps_err_e
-ps_lgetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, prgregset_t gregset)
+ps_lgetregs (struct ps_prochandle *ph, lwpid_t lwpid, prgregset_t gregset)
{
- struct cleanup *old_chain = save_inferior_ptid ();
- struct regcache *regcache;
-
- inferior_ptid = BUILD_LWP (lwpid, ph->pid);
- regcache = get_thread_regcache (inferior_ptid);
+ struct regcache *regcache = get_ps_regcache (ph, lwpid);
target_fetch_registers (regcache, -1);
fill_gregset (regcache, (gdb_gregset_t *) gregset, -1);
- do_cleanups (old_chain);
return PS_OK;
}
from GREGSET. */
ps_err_e
-ps_lsetregs (gdb_ps_prochandle_t ph, lwpid_t lwpid, const prgregset_t gregset)
+ps_lsetregs (struct ps_prochandle *ph, lwpid_t lwpid, const prgregset_t gregset)
{
- struct cleanup *old_chain = save_inferior_ptid ();
- struct regcache *regcache;
-
- inferior_ptid = BUILD_LWP (lwpid, ph->pid);
- regcache = get_thread_regcache (inferior_ptid);
+ struct regcache *regcache = get_ps_regcache (ph, lwpid);
supply_gregset (regcache, (const gdb_gregset_t *) gregset);
target_store_registers (regcache, -1);
- do_cleanups (old_chain);
return PS_OK;
}
process PH and store them in FPREGSET. */
ps_err_e
-ps_lgetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
- gdb_prfpregset_t *fpregset)
+ps_lgetfpregs (struct ps_prochandle *ph, lwpid_t lwpid,
+ prfpregset_t *fpregset)
{
- struct cleanup *old_chain = save_inferior_ptid ();
- struct regcache *regcache;
-
- inferior_ptid = BUILD_LWP (lwpid, ph->pid);
- regcache = get_thread_regcache (inferior_ptid);
+ struct regcache *regcache = get_ps_regcache (ph, lwpid);
target_fetch_registers (regcache, -1);
fill_fpregset (regcache, (gdb_fpregset_t *) fpregset, -1);
- do_cleanups (old_chain);
return PS_OK;
}
process PH from FPREGSET. */
ps_err_e
-ps_lsetfpregs (gdb_ps_prochandle_t ph, lwpid_t lwpid,
- const gdb_prfpregset_t *fpregset)
+ps_lsetfpregs (struct ps_prochandle *ph, lwpid_t lwpid,
+ const prfpregset_t *fpregset)
{
- struct cleanup *old_chain = save_inferior_ptid ();
- struct regcache *regcache;
-
- inferior_ptid = BUILD_LWP (lwpid, ph->pid);
- regcache = get_thread_regcache (inferior_ptid);
+ struct regcache *regcache = get_ps_regcache (ph, lwpid);
supply_fpregset (regcache, (const gdb_fpregset_t *) fpregset);
target_store_registers (regcache, -1);
- do_cleanups (old_chain);
return PS_OK;
}
-- not used on Solaris. */
pid_t
-ps_getpid (gdb_ps_prochandle_t ph)
+ps_getpid (struct ps_prochandle *ph)
{
- return ph->pid;
+ return ph->thread->ptid.pid ();
}
+void _initialize_proc_service ();
void
-_initialize_proc_service (void)
+_initialize_proc_service ()
{
/* This function solely exists to make sure this module is linked
into the final binary. */
projects / deliverable / binutils-gdb.git / blobdiff