/* Native support for the SGI Iris running IRIX version 5, for GDB.
- Copyright 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1998
+ Copyright 1988, 89, 90, 91, 92, 93, 94, 95, 96, 98, 1999
Free Software Foundation, Inc.
Contributed by Alessandro Forin(af@cs.cmu.edu) at CMU
and by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin.
Implemented for Irix 4.x by Garrett A. Wollman.
Modified for Irix 5.x by Ian Lance Taylor.
-This file is part of GDB.
+ This file is part of GDB.
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
#include "defs.h"
#include "inferior.h"
* any MIPS SVR4 target.
*/
-void
+void
supply_gregset (gregsetp)
gregset_t *gregsetp;
{
register int regi;
register greg_t *regp = &(*gregsetp)[0];
int gregoff = sizeof (greg_t) - MIPS_REGSIZE;
- static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0};
+ static char zerobuf[MAX_REGISTER_RAW_SIZE] =
+ {0};
- for(regi = 0; regi <= CTX_RA; regi++)
- supply_register (regi, (char *)(regp + regi) + gregoff);
+ for (regi = 0; regi <= CTX_RA; regi++)
+ supply_register (regi, (char *) (regp + regi) + gregoff);
- supply_register (PC_REGNUM, (char *)(regp + CTX_EPC) + gregoff);
- supply_register (HI_REGNUM, (char *)(regp + CTX_MDHI) + gregoff);
- supply_register (LO_REGNUM, (char *)(regp + CTX_MDLO) + gregoff);
- supply_register (CAUSE_REGNUM, (char *)(regp + CTX_CAUSE) + gregoff);
+ supply_register (PC_REGNUM, (char *) (regp + CTX_EPC) + gregoff);
+ supply_register (HI_REGNUM, (char *) (regp + CTX_MDHI) + gregoff);
+ supply_register (LO_REGNUM, (char *) (regp + CTX_MDLO) + gregoff);
+ supply_register (CAUSE_REGNUM, (char *) (regp + CTX_CAUSE) + gregoff);
/* Fill inaccessible registers with zero. */
supply_register (BADVADDR_REGNUM, zerobuf);
fpregset_t *fpregsetp;
{
register int regi;
- static char zerobuf[MAX_REGISTER_RAW_SIZE] = {0};
+ static char zerobuf[MAX_REGISTER_RAW_SIZE] =
+ {0};
/* FIXME, this is wrong for the N32 ABI which has 64 bit FP regs. */
for (regi = 0; regi < 32; regi++)
supply_register (FP0_REGNUM + regi,
- (char *)&fpregsetp->fp_r.fp_regs[regi]);
+ (char *) &fpregsetp->fp_r.fp_regs[regi]);
- supply_register (FCRCS_REGNUM, (char *)&fpregsetp->fp_csr);
+ supply_register (FCRCS_REGNUM, (char *) &fpregsetp->fp_csr);
/* FIXME: how can we supply FCRIR_REGNUM? SGI doesn't tell us. */
supply_register (FCRIR_REGNUM, zerobuf);
{
from = (char *) ®isters[REGISTER_BYTE (regi)];
to = (char *) &(fpregsetp->fp_r.fp_regs[regi - FP0_REGNUM]);
- memcpy(to, from, REGISTER_RAW_SIZE (regi));
+ memcpy (to, from, REGISTER_RAW_SIZE (regi));
}
}
if ((regno == -1) || (regno == FCRCS_REGNUM))
- fpregsetp->fp_csr = *(unsigned *) ®isters[REGISTER_BYTE(FCRCS_REGNUM)];
+ fpregsetp->fp_csr = *(unsigned *) ®isters[REGISTER_BYTE (FCRCS_REGNUM)];
}
{
if (core_reg_size == REGISTER_BYTES)
{
- memcpy ((char *)registers, core_reg_sect, core_reg_size);
+ memcpy ((char *) registers, core_reg_sect, core_reg_size);
}
else if (MIPS_REGSIZE == 4 &&
core_reg_size == (2 * MIPS_REGSIZE) * NUM_REGS)
{
/* This is a core file from a N32 executable, 64 bits are saved
- for all registers. */
+ for all registers. */
char *srcp = core_reg_sect;
char *dstp = registers;
int regno;
if (regno >= FP0_REGNUM && regno < (FP0_REGNUM + 32))
{
/* FIXME, this is wrong, N32 has 64 bit FP regs, but GDB
- currently assumes that they are 32 bit. */
+ currently assumes that they are 32 bit. */
*dstp++ = *srcp++;
*dstp++ = *srcp++;
*dstp++ = *srcp++;
*dstp++ = *srcp++;
- if (REGISTER_RAW_SIZE(regno) == 4)
+ if (REGISTER_RAW_SIZE (regno) == 4)
{
/* copying 4 bytes from eight bytes?
I don't see how this can be right... */
- srcp += 4;
+ srcp += 4;
}
else
{
typedef enum
{
- OBJ_LIST_OLD, /* Pre Irix 6.x object list. */
- OBJ_LIST_32, /* 32 Bit Elf32_Obj_Info. */
- OBJ_LIST_64 /* 64 Bit Elf64_Obj_Info, FIXME not yet implemented. */
-} obj_list_variant;
+ OBJ_LIST_OLD, /* Pre Irix 6.x object list. */
+ OBJ_LIST_32, /* 32 Bit Elf32_Obj_Info. */
+ OBJ_LIST_64 /* 64 Bit Elf64_Obj_Info, FIXME not yet implemented. */
+}
+obj_list_variant;
/* Define our own link_map structure.
This will help to share code with osfsolib.c and solib.c. */
-struct link_map {
- obj_list_variant l_variant; /* which variant of object list */
- CORE_ADDR l_lladdr; /* addr in inferior list was read from */
- CORE_ADDR l_next; /* address of next object list entry */
-};
+struct link_map
+ {
+ obj_list_variant l_variant; /* which variant of object list */
+ CORE_ADDR l_lladdr; /* addr in inferior list was read from */
+ CORE_ADDR l_next; /* address of next object list entry */
+ };
/* Irix 5 shared objects are pre-linked to particular addresses
although the dynamic linker may have to relocate them if the
char shadow_contents[BREAKPOINT_MAX]; /* Stash old bkpt addr contents */
-struct so_list {
- struct so_list *next; /* next structure in linked list */
- struct link_map lm;
- CORE_ADDR offset; /* prelink to load address offset */
- char *so_name; /* shared object lib name */
- CORE_ADDR lmstart; /* lower addr bound of mapped object */
- CORE_ADDR lmend; /* upper addr bound of mapped object */
- char symbols_loaded; /* flag: symbols read in yet? */
- char from_tty; /* flag: print msgs? */
- struct objfile *objfile; /* objfile for loaded lib */
- struct section_table *sections;
- struct section_table *sections_end;
- struct section_table *textsection;
- bfd *abfd;
-};
+struct so_list
+ {
+ struct so_list *next; /* next structure in linked list */
+ struct link_map lm;
+ CORE_ADDR offset; /* prelink to load address offset */
+ char *so_name; /* shared object lib name */
+ CORE_ADDR lmstart; /* lower addr bound of mapped object */
+ CORE_ADDR lmend; /* upper addr bound of mapped object */
+ char symbols_loaded; /* flag: symbols read in yet? */
+ char from_tty; /* flag: print msgs? */
+ struct objfile *objfile; /* objfile for loaded lib */
+ struct section_table *sections;
+ struct section_table *sections_end;
+ struct section_table *textsection;
+ bfd *abfd;
+ };
static struct so_list *so_list_head; /* List of known shared objects */
-static CORE_ADDR debug_base; /* Base of dynamic linker structures */
+static CORE_ADDR debug_base; /* Base of dynamic linker structures */
static CORE_ADDR breakpoint_addr; /* Address where end bkpt is set */
/* Local function prototypes */
symbol_add_stub PARAMS ((char *));
static struct so_list *
-find_solib PARAMS ((struct so_list *));
+ find_solib PARAMS ((struct so_list *));
static struct link_map *
-first_link_map_member PARAMS ((void));
+ first_link_map_member PARAMS ((void));
static struct link_map *
-next_link_map_member PARAMS ((struct so_list *));
+ next_link_map_member PARAMS ((struct so_list *));
static void
xfer_link_map_member PARAMS ((struct so_list *, struct link_map *));
static CORE_ADDR
-locate_base PARAMS ((void));
+ locate_base PARAMS ((void));
static int
solib_map_sections PARAMS ((char *));
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- solib_map_sections -- open bfd and build sections for shared lib
+ solib_map_sections -- open bfd and build sections for shared lib
-SYNOPSIS
+ SYNOPSIS
- static int solib_map_sections (struct so_list *so)
+ static int solib_map_sections (struct so_list *so)
-DESCRIPTION
+ DESCRIPTION
- Given a pointer to one of the shared objects in our list
- of mapped objects, use the recorded name to open a bfd
- descriptor for the object, build a section table, and then
- relocate all the section addresses by the base address at
- which the shared object was mapped.
+ Given a pointer to one of the shared objects in our list
+ of mapped objects, use the recorded name to open a bfd
+ descriptor for the object, build a section table, and then
+ relocate all the section addresses by the base address at
+ which the shared object was mapped.
-FIXMES
+ FIXMES
- In most (all?) cases the shared object file name recorded in the
- dynamic linkage tables will be a fully qualified pathname. For
- cases where it isn't, do we really mimic the systems search
- mechanism correctly in the below code (particularly the tilde
- expansion stuff?).
+ In most (all?) cases the shared object file name recorded in the
+ dynamic linkage tables will be a fully qualified pathname. For
+ cases where it isn't, do we really mimic the systems search
+ mechanism correctly in the below code (particularly the tilde
+ expansion stuff?).
*/
static int
struct section_table *p;
struct cleanup *old_chain;
bfd *abfd;
-
- filename = tilde_expand (so -> so_name);
+
+ filename = tilde_expand (so->so_name);
old_chain = make_cleanup (free, filename);
-
+
scratch_chan = openp (getenv ("PATH"), 1, filename, O_RDONLY, 0,
&scratch_pathname);
if (scratch_chan < 0)
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
/* Leave bfd open, core_xfer_memory and "info files" need it. */
- so -> abfd = abfd;
- abfd -> cacheable = true;
+ so->abfd = abfd;
+ abfd->cacheable = true;
if (!bfd_check_format (abfd, bfd_object))
{
error ("\"%s\": not in executable format: %s.",
scratch_pathname, bfd_errmsg (bfd_get_error ()));
}
- if (build_section_table (abfd, &so -> sections, &so -> sections_end))
+ if (build_section_table (abfd, &so->sections, &so->sections_end))
{
- error ("Can't find the file sections in `%s': %s",
+ error ("Can't find the file sections in `%s': %s",
bfd_get_filename (exec_bfd), bfd_errmsg (bfd_get_error ()));
}
- for (p = so -> sections; p < so -> sections_end; p++)
+ for (p = so->sections; p < so->sections_end; p++)
{
/* Relocate the section binding addresses as recorded in the shared
- object's file by the offset to get the address to which the
- object was actually mapped. */
- p -> addr += LM_OFFSET (so);
- p -> endaddr += LM_OFFSET (so);
- so -> lmend = (CORE_ADDR) max (p -> endaddr, so -> lmend);
- if (STREQ (p -> the_bfd_section -> name, ".text"))
+ object's file by the offset to get the address to which the
+ object was actually mapped. */
+ p->addr += LM_OFFSET (so);
+ p->endaddr += LM_OFFSET (so);
+ so->lmend = (CORE_ADDR) max (p->endaddr, so->lmend);
+ if (STREQ (p->the_bfd_section->name, ".text"))
{
- so -> textsection = p;
+ so->textsection = p;
}
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- locate_base -- locate the base address of dynamic linker structs
+ locate_base -- locate the base address of dynamic linker structs
-SYNOPSIS
+ SYNOPSIS
- CORE_ADDR locate_base (void)
+ CORE_ADDR locate_base (void)
-DESCRIPTION
+ DESCRIPTION
- For both the SunOS and SVR4 shared library implementations, if the
- inferior executable has been linked dynamically, there is a single
- address somewhere in the inferior's data space which is the key to
- locating all of the dynamic linker's runtime structures. This
- address is the value of the symbol defined by the macro DEBUG_BASE.
- The job of this function is to find and return that address, or to
- return 0 if there is no such address (the executable is statically
- linked for example).
+ For both the SunOS and SVR4 shared library implementations, if the
+ inferior executable has been linked dynamically, there is a single
+ address somewhere in the inferior's data space which is the key to
+ locating all of the dynamic linker's runtime structures. This
+ address is the value of the symbol defined by the macro DEBUG_BASE.
+ The job of this function is to find and return that address, or to
+ return 0 if there is no such address (the executable is statically
+ linked for example).
- For SunOS, the job is almost trivial, since the dynamic linker and
- all of it's structures are statically linked to the executable at
- link time. Thus the symbol for the address we are looking for has
- already been added to the minimal symbol table for the executable's
- objfile at the time the symbol file's symbols were read, and all we
- have to do is look it up there. Note that we explicitly do NOT want
- to find the copies in the shared library.
+ For SunOS, the job is almost trivial, since the dynamic linker and
+ all of it's structures are statically linked to the executable at
+ link time. Thus the symbol for the address we are looking for has
+ already been added to the minimal symbol table for the executable's
+ objfile at the time the symbol file's symbols were read, and all we
+ have to do is look it up there. Note that we explicitly do NOT want
+ to find the copies in the shared library.
- The SVR4 version is much more complicated because the dynamic linker
- and it's structures are located in the shared C library, which gets
- run as the executable's "interpreter" by the kernel. We have to go
- to a lot more work to discover the address of DEBUG_BASE. Because
- of this complexity, we cache the value we find and return that value
- on subsequent invocations. Note there is no copy in the executable
- symbol tables.
+ The SVR4 version is much more complicated because the dynamic linker
+ and it's structures are located in the shared C library, which gets
+ run as the executable's "interpreter" by the kernel. We have to go
+ to a lot more work to discover the address of DEBUG_BASE. Because
+ of this complexity, we cache the value we find and return that value
+ on subsequent invocations. Note there is no copy in the executable
+ symbol tables.
- Irix 5 is basically like SunOS.
+ Irix 5 is basically like SunOS.
- Note that we can assume nothing about the process state at the time
- we need to find this address. We may be stopped on the first instruc-
- tion of the interpreter (C shared library), the first instruction of
- the executable itself, or somewhere else entirely (if we attached
- to the process for example).
+ Note that we can assume nothing about the process state at the time
+ we need to find this address. We may be stopped on the first instruc-
+ tion of the interpreter (C shared library), the first instruction of
+ the executable itself, or somewhere else entirely (if we attached
+ to the process for example).
*/
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- first_link_map_member -- locate first member in dynamic linker's map
+ first_link_map_member -- locate first member in dynamic linker's map
-SYNOPSIS
+ SYNOPSIS
- static struct link_map *first_link_map_member (void)
+ static struct link_map *first_link_map_member (void)
-DESCRIPTION
+ DESCRIPTION
- Read in a copy of the first member in the inferior's dynamic
- link map from the inferior's dynamic linker structures, and return
- a pointer to the link map descriptor.
-*/
+ Read in a copy of the first member in the inferior's dynamic
+ link map from the inferior's dynamic linker structures, and return
+ a pointer to the link map descriptor.
+ */
static struct link_map *
first_link_map_member ()
/* The first entry in the list is the object file we are debugging,
so skip it. */
- next_lladdr = (CORE_ADDR) list_old.next;
+ next_lladdr = (CORE_ADDR) list_old.next;
#ifdef HANDLE_NEW_OBJ_LIST
if (list_old.data == NEW_OBJ_INFO_MAGIC)
read_memory (lladdr, (char *) &list_32, sizeof (Elf32_Obj_Info));
if (list_32.oi_size != sizeof (Elf32_Obj_Info))
return NULL;
- next_lladdr = (CORE_ADDR) list_32.oi_next;
+ next_lladdr = (CORE_ADDR) list_32.oi_next;
}
#endif
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- next_link_map_member -- locate next member in dynamic linker's map
+ next_link_map_member -- locate next member in dynamic linker's map
-SYNOPSIS
+ SYNOPSIS
- static struct link_map *next_link_map_member (so_list_ptr)
+ static struct link_map *next_link_map_member (so_list_ptr)
-DESCRIPTION
+ DESCRIPTION
- Read in a copy of the next member in the inferior's dynamic
- link map from the inferior's dynamic linker structures, and return
- a pointer to the link map descriptor.
-*/
+ Read in a copy of the next member in the inferior's dynamic
+ link map from the inferior's dynamic linker structures, and return
+ a pointer to the link map descriptor.
+ */
static struct link_map *
next_link_map_member (so_list_ptr)
struct so_list *so_list_ptr;
{
- struct link_map *lm = &so_list_ptr -> lm;
- CORE_ADDR next_lladdr = lm -> l_next;
+ struct link_map *lm = &so_list_ptr->lm;
+ CORE_ADDR next_lladdr = lm->l_next;
static struct link_map next_lm;
if (next_lladdr == 0)
{
/* We have hit the end of the list, so check to see if any were
- added, but be quiet if we can't read from the target any more. */
+ added, but be quiet if we can't read from the target any more. */
int status = 0;
- if (lm -> l_variant == OBJ_LIST_OLD)
+ if (lm->l_variant == OBJ_LIST_OLD)
{
struct obj_list list_old;
- status = target_read_memory (lm -> l_lladdr,
+ status = target_read_memory (lm->l_lladdr,
(char *) &list_old,
sizeof (struct obj_list));
next_lladdr = (CORE_ADDR) list_old.next;
}
#ifdef HANDLE_NEW_OBJ_LIST
- else if (lm -> l_variant == OBJ_LIST_32)
+ else if (lm->l_variant == OBJ_LIST_32)
{
Elf32_Obj_Info list_32;
- status = target_read_memory (lm -> l_lladdr,
+ status = target_read_memory (lm->l_lladdr,
(char *) &list_32,
sizeof (Elf32_Obj_Info));
next_lladdr = (CORE_ADDR) list_32.oi_next;
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- xfer_link_map_member -- set local variables from dynamic linker's map
+ xfer_link_map_member -- set local variables from dynamic linker's map
-SYNOPSIS
+ SYNOPSIS
- static void xfer_link_map_member (so_list_ptr, lm)
+ static void xfer_link_map_member (so_list_ptr, lm)
-DESCRIPTION
+ DESCRIPTION
- Read in a copy of the requested member in the inferior's dynamic
- link map from the inferior's dynamic linker structures, and fill
- in the necessary so_list_ptr elements.
-*/
+ Read in a copy of the requested member in the inferior's dynamic
+ link map from the inferior's dynamic linker structures, and fill
+ in the necessary so_list_ptr elements.
+ */
static void
xfer_link_map_member (so_list_ptr, lm)
struct link_map *lm;
{
struct obj_list list_old;
- CORE_ADDR lladdr = lm -> l_lladdr;
- struct link_map *new_lm = &so_list_ptr -> lm;
+ CORE_ADDR lladdr = lm->l_lladdr;
+ struct link_map *new_lm = &so_list_ptr->lm;
int errcode;
read_memory (lladdr, (char *) &list_old, sizeof (struct obj_list));
- new_lm -> l_variant = OBJ_LIST_OLD;
- new_lm -> l_lladdr = lladdr;
- new_lm -> l_next = (CORE_ADDR) list_old.next;
+ new_lm->l_variant = OBJ_LIST_OLD;
+ new_lm->l_lladdr = lladdr;
+ new_lm->l_next = (CORE_ADDR) list_old.next;
#ifdef HANDLE_NEW_OBJ_LIST
if (list_old.data == NEW_OBJ_INFO_MAGIC)
read_memory (lladdr, (char *) &list_32, sizeof (Elf32_Obj_Info));
if (list_32.oi_size != sizeof (Elf32_Obj_Info))
return;
- new_lm -> l_variant = OBJ_LIST_32;
- new_lm -> l_next = (CORE_ADDR) list_32.oi_next;
+ new_lm->l_variant = OBJ_LIST_32;
+ new_lm->l_next = (CORE_ADDR) list_32.oi_next;
target_read_string ((CORE_ADDR) list_32.oi_pathname,
- &so_list_ptr -> so_name,
+ &so_list_ptr->so_name,
list_32.oi_pathname_len + 1, &errcode);
if (errcode != 0)
memory_error (errcode, (CORE_ADDR) list_32.oi_pathname);
{
#if defined (_MIPS_SIM_NABI32) && _MIPS_SIM == _MIPS_SIM_NABI32
/* If we are compiling GDB under N32 ABI, the alignments in
- the obj struct are different from the O32 ABI and we will get
- wrong values when accessing the struct.
- As a workaround we use fixed values which are good for
- Irix 6.2. */
+ the obj struct are different from the O32 ABI and we will get
+ wrong values when accessing the struct.
+ As a workaround we use fixed values which are good for
+ Irix 6.2. */
char buf[432];
read_memory ((CORE_ADDR) list_old.data, buf, sizeof (buf));
target_read_string (extract_address (&buf[236], 4),
- &so_list_ptr -> so_name,
+ &so_list_ptr->so_name,
INT_MAX, &errcode);
if (errcode != 0)
memory_error (errcode, extract_address (&buf[236], 4));
sizeof (struct obj));
target_read_string ((CORE_ADDR) obj_old.o_path,
- &so_list_ptr -> so_name,
+ &so_list_ptr->so_name,
INT_MAX, &errcode);
if (errcode != 0)
memory_error (errcode, (CORE_ADDR) obj_old.o_path);
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- find_solib -- step through list of shared objects
+ find_solib -- step through list of shared objects
-SYNOPSIS
+ SYNOPSIS
- struct so_list *find_solib (struct so_list *so_list_ptr)
+ struct so_list *find_solib (struct so_list *so_list_ptr)
-DESCRIPTION
+ DESCRIPTION
- This module contains the routine which finds the names of any
- loaded "images" in the current process. The argument in must be
- NULL on the first call, and then the returned value must be passed
- in on subsequent calls. This provides the capability to "step" down
- the list of loaded objects. On the last object, a NULL value is
- returned.
+ This module contains the routine which finds the names of any
+ loaded "images" in the current process. The argument in must be
+ NULL on the first call, and then the returned value must be passed
+ in on subsequent calls. This provides the capability to "step" down
+ the list of loaded objects. On the last object, a NULL value is
+ returned.
*/
static struct so_list *
struct so_list *so_list_next = NULL;
struct link_map *lm = NULL;
struct so_list *new;
-
+
if (so_list_ptr == NULL)
{
/* We are setting up for a new scan through the loaded images. */
else
{
/* We have been called before, and are in the process of walking
- the shared library list. Advance to the next shared object. */
+ the shared library list. Advance to the next shared object. */
lm = next_link_map_member (so_list_ptr);
- so_list_next = so_list_ptr -> next;
+ so_list_next = so_list_ptr->next;
}
if ((so_list_next == NULL) && (lm != NULL))
{
new = (struct so_list *) xmalloc (sizeof (struct so_list));
memset ((char *) new, 0, sizeof (struct so_list));
/* Add the new node as the next node in the list, or as the root
- node if this is the first one. */
+ node if this is the first one. */
if (so_list_ptr != NULL)
{
- so_list_ptr -> next = new;
+ so_list_ptr->next = new;
}
else
{
so_list_head = new;
- }
+ }
so_list_next = new;
xfer_link_map_member (new, lm);
}
symbol_add_stub (arg)
char *arg;
{
- register struct so_list *so = (struct so_list *) arg; /* catch_errs bogon */
+ register struct so_list *so = (struct so_list *) arg; /* catch_errs bogon */
CORE_ADDR text_addr = 0;
+ struct section_addr_info section_addrs;
- if (so -> textsection)
- text_addr = so -> textsection -> addr;
- else if (so -> abfd != NULL)
+ memset (§ion_addrs, 0, sizeof (section_addrs));
+ if (so->textsection)
+ text_addr = so->textsection->addr;
+ else if (so->abfd != NULL)
{
asection *lowest_sect;
/* If we didn't find a mapped non zero sized .text section, set up
- text_addr so that the relocation in symbol_file_add does no harm. */
+ text_addr so that the relocation in symbol_file_add does no harm. */
- lowest_sect = bfd_get_section_by_name (so -> abfd, ".text");
+ lowest_sect = bfd_get_section_by_name (so->abfd, ".text");
if (lowest_sect == NULL)
- bfd_map_over_sections (so -> abfd, find_lowest_section,
+ bfd_map_over_sections (so->abfd, find_lowest_section,
(PTR) &lowest_sect);
if (lowest_sect)
- text_addr = bfd_section_vma (so -> abfd, lowest_sect) + LM_OFFSET (so);
+ text_addr = bfd_section_vma (so->abfd, lowest_sect) + LM_OFFSET (so);
}
-
- so -> objfile = symbol_file_add (so -> so_name, so -> from_tty,
- text_addr,
- 0, 0, 0, 0, 0);
+
+ section_addrs.text_addr = text_addr;
+ so->objfile = symbol_file_add (so->so_name, so->from_tty,
+ §ion_addrs, 0, 0);
return (1);
}
/*
-GLOBAL FUNCTION
+ GLOBAL FUNCTION
- solib_add -- add a shared library file to the symtab and section list
+ solib_add -- add a shared library file to the symtab and section list
-SYNOPSIS
+ SYNOPSIS
- void solib_add (char *arg_string, int from_tty,
- struct target_ops *target)
+ void solib_add (char *arg_string, int from_tty,
+ struct target_ops *target)
-DESCRIPTION
+ DESCRIPTION
-*/
+ */
void
solib_add (arg_string, from_tty, target)
char *arg_string;
int from_tty;
struct target_ops *target;
-{
- register struct so_list *so = NULL; /* link map state variable */
+{
+ register struct so_list *so = NULL; /* link map state variable */
/* Last shared library that we read. */
struct so_list *so_last = NULL;
char *re_err;
int count;
int old;
-
+
if ((re_err = re_comp (arg_string ? arg_string : ".")) != NULL)
{
error ("Invalid regexp: %s", re_err);
}
-
+
/* Add the shared library sections to the section table of the
specified target, if any. */
if (target)
count = 0;
while ((so = find_solib (so)) != NULL)
{
- if (so -> so_name[0])
+ if (so->so_name[0])
{
- count += so -> sections_end - so -> sections;
+ count += so->sections_end - so->sections;
}
}
-
+
if (count)
{
- int update_coreops;
-
- /* We must update the to_sections field in the core_ops structure
- here, otherwise we dereference a potential dangling pointer
- for each call to target_read/write_memory within this routine. */
- update_coreops = core_ops.to_sections == target->to_sections;
-
- /* Reallocate the target's section table including the new size. */
- if (target -> to_sections)
- {
- old = target -> to_sections_end - target -> to_sections;
- target -> to_sections = (struct section_table *)
- xrealloc ((char *)target -> to_sections,
- (sizeof (struct section_table)) * (count + old));
- }
- else
- {
- old = 0;
- target -> to_sections = (struct section_table *)
- xmalloc ((sizeof (struct section_table)) * count);
- }
- target -> to_sections_end = target -> to_sections + (count + old);
+ old = target_resize_to_sections (target, count);
- /* Update the to_sections field in the core_ops structure
- if needed. */
- if (update_coreops)
- {
- core_ops.to_sections = target->to_sections;
- core_ops.to_sections_end = target->to_sections_end;
- }
-
/* Add these section table entries to the target's table. */
while ((so = find_solib (so)) != NULL)
{
- if (so -> so_name[0])
+ if (so->so_name[0])
{
- count = so -> sections_end - so -> sections;
- memcpy ((char *) (target -> to_sections + old),
- so -> sections,
+ count = so->sections_end - so->sections;
+ memcpy ((char *) (target->to_sections + old),
+ so->sections,
(sizeof (struct section_table)) * count);
old += count;
}
}
}
}
-
+
/* Now add the symbol files. */
while ((so = find_solib (so)) != NULL)
{
- if (so -> so_name[0] && re_exec (so -> so_name))
+ if (so->so_name[0] && re_exec (so->so_name))
{
- so -> from_tty = from_tty;
- if (so -> symbols_loaded)
+ so->from_tty = from_tty;
+ if (so->symbols_loaded)
{
if (from_tty)
{
- printf_unfiltered ("Symbols already loaded for %s\n", so -> so_name);
+ printf_unfiltered ("Symbols already loaded for %s\n", so->so_name);
}
}
else if (catch_errors
RETURN_MASK_ALL))
{
so_last = so;
- so -> symbols_loaded = 1;
+ so->symbols_loaded = 1;
}
}
}
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- info_sharedlibrary_command -- code for "info sharedlibrary"
+ info_sharedlibrary_command -- code for "info sharedlibrary"
-SYNOPSIS
+ SYNOPSIS
- static void info_sharedlibrary_command ()
+ static void info_sharedlibrary_command ()
-DESCRIPTION
+ DESCRIPTION
- Walk through the shared library list and print information
- about each attached library.
-*/
+ Walk through the shared library list and print information
+ about each attached library.
+ */
static void
info_sharedlibrary_command (ignore, from_tty)
char *ignore;
int from_tty;
{
- register struct so_list *so = NULL; /* link map state variable */
+ register struct so_list *so = NULL; /* link map state variable */
int header_done = 0;
-
+
if (exec_bfd == NULL)
{
printf_unfiltered ("No exec file.\n");
}
while ((so = find_solib (so)) != NULL)
{
- if (so -> so_name[0])
+ if (so->so_name[0])
{
if (!header_done)
{
- printf_unfiltered("%-12s%-12s%-12s%s\n", "From", "To", "Syms Read",
- "Shared Object Library");
+ printf_unfiltered ("%-12s%-12s%-12s%s\n", "From", "To", "Syms Read",
+ "Shared Object Library");
header_done++;
}
printf_unfiltered ("%-12s",
- local_hex_string_custom ((unsigned long) LM_ADDR (so),
- "08l"));
+ local_hex_string_custom ((unsigned long) LM_ADDR (so),
+ "08l"));
printf_unfiltered ("%-12s",
- local_hex_string_custom ((unsigned long) so -> lmend,
- "08l"));
- printf_unfiltered ("%-12s", so -> symbols_loaded ? "Yes" : "No");
- printf_unfiltered ("%s\n", so -> so_name);
+ local_hex_string_custom ((unsigned long) so->lmend,
+ "08l"));
+ printf_unfiltered ("%-12s", so->symbols_loaded ? "Yes" : "No");
+ printf_unfiltered ("%s\n", so->so_name);
}
}
if (so_list_head == NULL)
{
- printf_unfiltered ("No shared libraries loaded at this time.\n");
+ printf_unfiltered ("No shared libraries loaded at this time.\n");
}
}
/*
-GLOBAL FUNCTION
+ GLOBAL FUNCTION
- solib_address -- check to see if an address is in a shared lib
+ solib_address -- check to see if an address is in a shared lib
-SYNOPSIS
+ SYNOPSIS
- char *solib_address (CORE_ADDR address)
+ char *solib_address (CORE_ADDR address)
-DESCRIPTION
+ DESCRIPTION
- Provides a hook for other gdb routines to discover whether or
- not a particular address is within the mapped address space of
- a shared library. Any address between the base mapping address
- and the first address beyond the end of the last mapping, is
- considered to be within the shared library address space, for
- our purposes.
+ Provides a hook for other gdb routines to discover whether or
+ not a particular address is within the mapped address space of
+ a shared library. Any address between the base mapping address
+ and the first address beyond the end of the last mapping, is
+ considered to be within the shared library address space, for
+ our purposes.
- For example, this routine is called at one point to disable
- breakpoints which are in shared libraries that are not currently
- mapped in.
+ For example, this routine is called at one point to disable
+ breakpoints which are in shared libraries that are not currently
+ mapped in.
*/
char *
solib_address (address)
CORE_ADDR address;
{
- register struct so_list *so = 0; /* link map state variable */
-
+ register struct so_list *so = 0; /* link map state variable */
+
while ((so = find_solib (so)) != NULL)
{
- if (so -> so_name[0])
+ if (so->so_name[0])
{
if ((address >= (CORE_ADDR) LM_ADDR (so)) &&
- (address < (CORE_ADDR) so -> lmend))
+ (address < (CORE_ADDR) so->lmend))
return (so->so_name);
}
}
/* Called by free_all_symtabs */
-void
-clear_solib()
+void
+clear_solib ()
{
struct so_list *next;
char *bfd_filename;
-
+
+ disable_breakpoints_in_shlibs (1);
+
while (so_list_head)
{
- if (so_list_head -> sections)
+ if (so_list_head->sections)
{
- free ((PTR)so_list_head -> sections);
+ free ((PTR) so_list_head->sections);
}
- if (so_list_head -> abfd)
+ if (so_list_head->abfd)
{
- bfd_filename = bfd_get_filename (so_list_head -> abfd);
- if (!bfd_close (so_list_head -> abfd))
+ bfd_filename = bfd_get_filename (so_list_head->abfd);
+ if (!bfd_close (so_list_head->abfd))
warning ("cannot close \"%s\": %s",
bfd_filename, bfd_errmsg (bfd_get_error ()));
}
/* This happens for the executable on SVR4. */
bfd_filename = NULL;
- next = so_list_head -> next;
+ next = so_list_head->next;
if (bfd_filename)
- free ((PTR)bfd_filename);
+ free ((PTR) bfd_filename);
free (so_list_head->so_name);
- free ((PTR)so_list_head);
+ free ((PTR) so_list_head);
so_list_head = next;
}
debug_base = 0;
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- disable_break -- remove the "mapping changed" breakpoint
+ disable_break -- remove the "mapping changed" breakpoint
-SYNOPSIS
+ SYNOPSIS
- static int disable_break ()
+ static int disable_break ()
-DESCRIPTION
+ DESCRIPTION
- Removes the breakpoint that gets hit when the dynamic linker
- completes a mapping change.
+ Removes the breakpoint that gets hit when the dynamic linker
+ completes a mapping change.
-*/
+ */
static int
disable_break ()
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- enable_break -- arrange for dynamic linker to hit breakpoint
+ enable_break -- arrange for dynamic linker to hit breakpoint
-SYNOPSIS
+ SYNOPSIS
- int enable_break (void)
+ int enable_break (void)
-DESCRIPTION
+ DESCRIPTION
- This functions inserts a breakpoint at the entry point of the
- main executable, where all shared libraries are mapped in.
-*/
+ This functions inserts a breakpoint at the entry point of the
+ main executable, where all shared libraries are mapped in.
+ */
static int
enable_break ()
return 0;
}
-
+
/*
-
-GLOBAL FUNCTION
-
- solib_create_inferior_hook -- shared library startup support
-
-SYNOPSIS
-
- void solib_create_inferior_hook()
-
-DESCRIPTION
-
- When gdb starts up the inferior, it nurses it along (through the
- shell) until it is ready to execute it's first instruction. At this
- point, this function gets called via expansion of the macro
- SOLIB_CREATE_INFERIOR_HOOK.
-
- For SunOS executables, this first instruction is typically the
- one at "_start", or a similar text label, regardless of whether
- the executable is statically or dynamically linked. The runtime
- startup code takes care of dynamically linking in any shared
- libraries, once gdb allows the inferior to continue.
-
- For SVR4 executables, this first instruction is either the first
- instruction in the dynamic linker (for dynamically linked
- executables) or the instruction at "start" for statically linked
- executables. For dynamically linked executables, the system
- first exec's /lib/libc.so.N, which contains the dynamic linker,
- and starts it running. The dynamic linker maps in any needed
- shared libraries, maps in the actual user executable, and then
- jumps to "start" in the user executable.
-
- For both SunOS shared libraries, and SVR4 shared libraries, we
- can arrange to cooperate with the dynamic linker to discover the
- names of shared libraries that are dynamically linked, and the
- base addresses to which they are linked.
-
- This function is responsible for discovering those names and
- addresses, and saving sufficient information about them to allow
- their symbols to be read at a later time.
-
-FIXME
-
- Between enable_break() and disable_break(), this code does not
- properly handle hitting breakpoints which the user might have
- set in the startup code or in the dynamic linker itself. Proper
- handling will probably have to wait until the implementation is
- changed to use the "breakpoint handler function" method.
-
- Also, what if child has exit()ed? Must exit loop somehow.
- */
-
-void
-solib_create_inferior_hook()
+
+ GLOBAL FUNCTION
+
+ solib_create_inferior_hook -- shared library startup support
+
+ SYNOPSIS
+
+ void solib_create_inferior_hook()
+
+ DESCRIPTION
+
+ When gdb starts up the inferior, it nurses it along (through the
+ shell) until it is ready to execute it's first instruction. At this
+ point, this function gets called via expansion of the macro
+ SOLIB_CREATE_INFERIOR_HOOK.
+
+ For SunOS executables, this first instruction is typically the
+ one at "_start", or a similar text label, regardless of whether
+ the executable is statically or dynamically linked. The runtime
+ startup code takes care of dynamically linking in any shared
+ libraries, once gdb allows the inferior to continue.
+
+ For SVR4 executables, this first instruction is either the first
+ instruction in the dynamic linker (for dynamically linked
+ executables) or the instruction at "start" for statically linked
+ executables. For dynamically linked executables, the system
+ first exec's /lib/libc.so.N, which contains the dynamic linker,
+ and starts it running. The dynamic linker maps in any needed
+ shared libraries, maps in the actual user executable, and then
+ jumps to "start" in the user executable.
+
+ For both SunOS shared libraries, and SVR4 shared libraries, we
+ can arrange to cooperate with the dynamic linker to discover the
+ names of shared libraries that are dynamically linked, and the
+ base addresses to which they are linked.
+
+ This function is responsible for discovering those names and
+ addresses, and saving sufficient information about them to allow
+ their symbols to be read at a later time.
+
+ FIXME
+
+ Between enable_break() and disable_break(), this code does not
+ properly handle hitting breakpoints which the user might have
+ set in the startup code or in the dynamic linker itself. Proper
+ handling will probably have to wait until the implementation is
+ changed to use the "breakpoint handler function" method.
+
+ Also, what if child has exit()ed? Must exit loop somehow.
+ */
+
+void
+solib_create_inferior_hook ()
{
if (!enable_break ())
{
wait_for_inferior ();
}
while (stop_signal != TARGET_SIGNAL_TRAP);
-
+
/* We are now either at the "mapping complete" breakpoint (or somewhere
else, a condition we aren't prepared to deal with anyway), so adjust
the PC as necessary after a breakpoint, disable the breakpoint, and
}
/* solib_add will call reinit_frame_cache.
- But we are stopped in the startup code and we might not have symbols
- for the startup code, so heuristic_proc_start could be called
- and will put out an annoying warning.
- Delaying the resetting of stop_soon_quietly until after symbol loading
- suppresses the warning. */
+ But we are stopped in the startup code and we might not have symbols
+ for the startup code, so heuristic_proc_start could be called
+ and will put out an annoying warning.
+ Delaying the resetting of stop_soon_quietly until after symbol loading
+ suppresses the warning. */
if (auto_solib_add)
solib_add ((char *) 0, 0, (struct target_ops *) 0);
stop_soon_quietly = 0;
/*
-LOCAL FUNCTION
+ LOCAL FUNCTION
- sharedlibrary_command -- handle command to explicitly add library
+ sharedlibrary_command -- handle command to explicitly add library
-SYNOPSIS
+ SYNOPSIS
- static void sharedlibrary_command (char *args, int from_tty)
+ static void sharedlibrary_command (char *args, int from_tty)
-DESCRIPTION
+ DESCRIPTION
-*/
+ */
static void
sharedlibrary_command (args, from_tty)
-char *args;
-int from_tty;
+ char *args;
+ int from_tty;
{
dont_repeat ();
solib_add (args, from_tty, (struct target_ops *) 0);
}
void
-_initialize_solib()
+_initialize_solib ()
{
add_com ("sharedlibrary", class_files, sharedlibrary_command,
"Load shared object library symbols for files matching REGEXP.");
- add_info ("sharedlibrary", info_sharedlibrary_command,
+ add_info ("sharedlibrary", info_sharedlibrary_command,
"Status of loaded shared object libraries.");
add_show_from_set
&setlist),
&showlist);
}
-
\f
+
/* Register that we are able to handle irix5 core file formats.
This really is bfd_target_unknown_flavour */
static struct core_fns irix5_core_fns =
{
- bfd_target_unknown_flavour,
- fetch_core_registers,
- NULL
+ bfd_target_unknown_flavour, /* core_flavour */
+ default_check_format, /* check_format */
+ default_core_sniffer, /* core_sniffer */
+ fetch_core_registers, /* core_read_registers */
+ NULL /* next */
};
void
projects / deliverable / binutils-gdb.git / blobdiff