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Fri Apr 10 22:36:28 1998 Peter Schauer (pes@regent.e-technik.tu-muenchen.de) 

Update support for x86 Solaris 2.
        * config/i386/tm-i386sol2.h, nm-i386sol2.h:  New configuration
        files for x86 Solaris 2.
        * config/i386/i386sol2.mt, i386sol2.mh:  Use them.
        * config/sparc/tm-sun4sol2.h (PROCFS_GET_CARRY):  New macro, extract
        carry flag from a given regset.
        (IS_STATIC_TRANSFORM_NAME):  New macro, check if a symbol name
        is a SunPro transformed name.
        * i386-tdep.c (sunpro_static_transform_name):  New function to
        extract the source name from a SunPro transformed name.
        * inferior.h (procfs_first_available, procfs_get_pid_fd):
        Add prototypes.
        * infrun.c (wait_for_inferior):  Handle breakpoint hit in
        signal handler without intervening stop in sigtramp.
        * procfs.c (procfs_lwp_creation_handler):  Use PROCFS_GET_CARRY
        instead of direct access to the status register.
        (procfs_get_pid_fd):  New function, returns procfs fd for a given pid.
        * sol-thread.c (ps_lgetLDT):  New function, returns LDT for a given
        lwpid.
        (sol_find_new_threads):  Handle failed libthread_db initialization
        gracefully.
        * stabsread.c (define_symbol):  Use IS_STATIC_TRANSFORM_NAME
        to check for a SunPro transformed symbol name.
This commit is contained in:
Jason Molenda 1998-04-11 05:43:33 +00:00
parent baee3bc6e9
commit f0fce3b80b
6 changed files with 123 additions and 10 deletions
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28
gdb/ChangeLog
View File

@ -1,3 +1,29 @@
Fri Apr 10 22:36:28 1998 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
Update support for x86 Solaris 2.
* config/i386/tm-i386sol2.h, nm-i386sol2.h: New configuration
files for x86 Solaris 2.
* config/i386/i386sol2.mt, i386sol2.mh: Use them.
* config/sparc/tm-sun4sol2.h (PROCFS_GET_CARRY): New macro, extract
carry flag from a given regset.
(IS_STATIC_TRANSFORM_NAME): New macro, check if a symbol name
is a SunPro transformed name.
* i386-tdep.c (sunpro_static_transform_name): New function to
extract the source name from a SunPro transformed name.
* inferior.h (procfs_first_available, procfs_get_pid_fd):
Add prototypes.
* infrun.c (wait_for_inferior): Handle breakpoint hit in
signal handler without intervening stop in sigtramp.
* procfs.c (procfs_lwp_creation_handler): Use PROCFS_GET_CARRY
instead of direct access to the status register.
(procfs_get_pid_fd): New function, returns procfs fd for a given pid.
* sol-thread.c (ps_lgetLDT): New function, returns LDT for a given
lwpid.
(sol_find_new_threads): Handle failed libthread_db initialization
gracefully.
* stabsread.c (define_symbol): Use IS_STATIC_TRANSFORM_NAME
to check for a SunPro transformed symbol name.
Fri Apr 10 10:35:35 1998 John Metzler <jmetzler@cygnus.com>
* utils.c (fmthex): A formatting function for hexdumps
@ -53,9 +79,11 @@ Mon Apr 6 09:17:48 1998 Andrew Cagney <cagney@b1.cygnus.com>
using MAX_REGISTER_RAW_SIZE.
Sat Apr 4 10:05:00 1998 Dawn Perchik <dawn@cygnus.com>
* infrun.c: Fix prototype of signals_info to match static funtion.
Thu Apr 2 12:47:41 1998 Frank Ch. Eigler <fche@cygnus.com>
* sol-thread.c (sol_thread_store_registers): Save & restore new
value of single updated register to prevent accidental clobbering.

7
gdb/config/sparc/tm-sun4sol2.h
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@ -1,5 +1,6 @@
/* Macro definitions for GDB for a Sun 4 running Solaris 2
Copyright 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
Copyright 1989, 1992, 1993, 1994, 1995, 1997, 1998
Free Software Foundation, Inc.
This file is part of GDB.
@ -66,6 +67,7 @@ get_longjmp_target PARAMS ((CORE_ADDR *));
extern char *sunpro_static_transform_name PARAMS ((char *));
#define STATIC_TRANSFORM_NAME(x) sunpro_static_transform_name (x)
#define IS_STATIC_TRANSFORM_NAME(name) ((name)[0] == '$')
#define FAULTED_USE_SIGINFO
@ -76,6 +78,9 @@ extern char *sunpro_static_transform_name PARAMS ((char *));
#define PIDGET(pid) ((pid) & 0xffff)
#define TIDGET(pid) (((pid) >> 16) & 0xffff)
/* Macro to extract carry from given regset. */
#define PROCFS_GET_CARRY(regset) ((regset)[R_PSR] & PS_FLAG_CARRY)
#ifdef HAVE_THREAD_DB_LIB
extern char *solaris_pid_to_str PARAMS ((int pid));

12
gdb/infrun.c
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@ -903,9 +903,15 @@ wait_for_inferior ()
Don't confuse that with hitting the breakpoint.
What we check for is that 1) stepping is going on
and 2) the pc before the last insn does not match
the address of the breakpoint before the current pc. */
(prev_pc != stop_pc - DECR_PC_AFTER_BREAK
&& CURRENTLY_STEPPING ()) :
the address of the breakpoint before the current pc
and 3) we didn't hit a breakpoint in a signal handler
without an intervening stop in sigtramp, which is
detected by a new stack pointer value below
any usual function calling stack adjustments. */
(CURRENTLY_STEPPING ()
&& prev_pc != stop_pc - DECR_PC_AFTER_BREAK
&& !(step_range_end
&& read_sp () INNER_THAN (step_sp - 16))) :
0)
);
/* Following in case break condition called a

16
gdb/procfs.c
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@ -1,5 +1,5 @@
/* Machine independent support for SVR4 /proc (process file system) for GDB.
Copyright 1991, 1992-96, 1997 Free Software Foundation, Inc.
Copyright 1991, 1992-97, 1998 Free Software Foundation, Inc.
Written by Fred Fish at Cygnus Support. Changes for sysv4.2mp procfs
compatibility by Geoffrey Noer at Cygnus Solutions.
@ -5218,7 +5218,7 @@ procfs_lwp_creation_handler (pi, syscall_num, why, rtnvalp, statvalp)
/* If lwp_create failed, then nothing interesting happened. Continue the
process and go back to sleep. */
if (pi->prstatus.pr_reg[R_PSR] & PS_FLAG_CARRY)
if (PROCFS_GET_CARRY (pi->prstatus.pr_reg))
{ /* _lwp_create failed */
pi->prrun.pr_flags &= PRSTEP;
pi->prrun.pr_flags |= PRCFAULT;
@ -5504,6 +5504,18 @@ procfs_first_available ()
return -1;
}
int
procfs_get_pid_fd (pid)
int pid;
{
struct procinfo *pi = find_procinfo (pid, 1);
if (pi == NULL)
return -1;
return pi->ctl_fd;
}
/* Send a SIGINT to the process group. This acts just like the user typed a
^C on the controlling terminal.

66
gdb/sol-thread.c
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@ -1,5 +1,5 @@
/* Low level interface for debugging Solaris threads for GDB, the GNU debugger.
Copyright 1996 Free Software Foundation, Inc.
Copyright 1996, 1997, 1998 Free Software Foundation, Inc.
This file is part of GDB.
@ -717,7 +717,7 @@ sol_thread_store_registers (regno)
error ("sol_thread_store_registers: td_thr_getfpregs %s",
td_err_string (val));
/* restore register value */
/* restore new register value */
memcpy(& registers[REGISTER_BYTE(regno)], old_value, REGISTER_SIZE);
#if 0
@ -1244,6 +1244,64 @@ ps_lsetfpregs (const struct ps_prochandle *ph, lwpid_t lwpid,
return PS_OK;
}
#ifdef TM_I386SOL2_H
/* Get local descriptor table. */
#include <sys/procfs.h>
#include <sys/reg.h>
#include <sys/sysi86.h>
static int nldt_allocated = 0;
static struct ssd *ldt_bufp = NULL;
ps_err_e
ps_lgetLDT (const struct ps_prochandle *ph, lwpid_t lwpid,
struct ssd *pldt)
{
gregset_t gregset;
int lwp_fd;
ps_err_e val;
int nldt;
int i;
/* Get procfs file descriptor for the LWP. */
lwp_fd = procfs_get_pid_fd (BUILD_LWP (lwpid, PIDGET (inferior_pid)));
if (lwp_fd < 0)
return PS_BADLID;
/* Fetch registers und LDT descriptors. */
if (ioctl (lwp_fd, PIOCGREG, &gregset) == -1)
return PS_ERR;
if (ioctl (lwp_fd, PIOCNLDT, &nldt) == -1)
return PS_ERR;
if (nldt_allocated < nldt)
{
ldt_bufp
= (struct ssd *) xrealloc (ldt_bufp, (nldt + 1) * sizeof (struct ssd));
nldt_allocated = nldt;
}
if (ioctl (lwp_fd, PIOCLDT, ldt_bufp) == -1)
return PS_ERR;
/* Search LDT for the LWP via register GS. */
for (i = 0; i < nldt; i++)
{
if (ldt_bufp[i].sel == gregset[GS])
{
*pldt = ldt_bufp[i];
return PS_OK;
}
}
/* LDT not found. */
return PS_ERR;
}
#endif /* TM_I386SOL2_H */
/* Convert a pid to printable form. */
@ -1306,6 +1364,10 @@ sol_find_new_threads_callback(th, ignored)
void
sol_find_new_threads()
{
/* don't do anything if init failed to resolve the libthread_db library */
if (!procfs_suppress_run)
return;
if (inferior_pid == -1)
{
printf_filtered("No process.\n");

4
gdb/stabsread.c
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@ -1878,7 +1878,7 @@ define_symbol (valu, string, desc, type, objfile)
SYMBOL_CLASS (sym) = LOC_STATIC;
SYMBOL_VALUE_ADDRESS (sym) = valu;
#ifdef STATIC_TRANSFORM_NAME
if (SYMBOL_NAME (sym)[0] == '$')
if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym)))
{
struct minimal_symbol *msym;
msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, objfile);
@ -2006,7 +2006,7 @@ define_symbol (valu, string, desc, type, objfile)
SYMBOL_CLASS (sym) = LOC_STATIC;
SYMBOL_VALUE_ADDRESS (sym) = valu;
#ifdef STATIC_TRANSFORM_NAME
if (SYMBOL_NAME (sym)[0] == '$')
if (IS_STATIC_TRANSFORM_NAME (SYMBOL_NAME (sym)))
{
struct minimal_symbol *msym;
msym = lookup_minimal_symbol (SYMBOL_NAME (sym), NULL, objfile);