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* linux-low.c (PTRACE_ARG3_TYPE): Change from long to void*.

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(PTRACE_ARG4_TYPE): New macro.
	(handle_extended_wait): Cast ptrace arg4 to PTRACE_ARG4_TYPE.
	(linux_wait_for_event_1, linux_resume_one_lwp): Ditto.
	(fetch_register): Cast to uintptr_t before casting to PTRACE_ARG3_TYPE.
	(usr_store_inferior_registers): Ditto.
	(linux_read_memory, linux_write_memory): Ditto.
	(linux_test_for_tracefork): Ditto.
This commit is contained in:
Doug Evans 2010-01-21 18:35:42 +00:00
parent 3743bb4fbf
commit 14ce306570
2 changed files with 45 additions and 13 deletions
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9
gdb/gdbserver/ChangeLog
View File

@ -1,5 +1,14 @@
2010-01-21 Doug Evans <dje@google.com>
* linux-low.c (PTRACE_ARG3_TYPE): Change from long to void*.
(PTRACE_ARG4_TYPE): New macro.
(handle_extended_wait): Cast ptrace arg4 to PTRACE_ARG4_TYPE.
(linux_wait_for_event_1, linux_resume_one_lwp): Ditto.
(fetch_register): Cast to uintptr_t before casting to PTRACE_ARG3_TYPE.
(usr_store_inferior_registers): Ditto.
(linux_read_memory, linux_write_memory): Ditto.
(linux_test_for_tracefork): Ditto.
* linux-arm-low.c: Remove redundant include of gdb_proc_service.h.
Only include elf.h if gdb_proc_service.h didn't include linux/elf.h.

49
gdb/gdbserver/linux-low.c
View File

@ -153,7 +153,8 @@ struct pending_signals
struct pending_signals *prev;
};
#define PTRACE_ARG3_TYPE long
#define PTRACE_ARG3_TYPE void *
#define PTRACE_ARG4_TYPE void *
#define PTRACE_XFER_TYPE long
#ifdef HAVE_LINUX_REGSETS
@ -385,7 +386,7 @@ handle_extended_wait (struct lwp_info *event_child, int wstat)
warning ("wait returned unexpected status 0x%x", status);
}
ptrace (PTRACE_SETOPTIONS, new_pid, 0, PTRACE_O_TRACECLONE);
ptrace (PTRACE_SETOPTIONS, new_pid, 0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE);
ptid = ptid_build (pid_of (event_child), new_pid, 0);
new_lwp = (struct lwp_info *) add_lwp (ptid);
@ -1184,7 +1185,7 @@ linux_wait_for_event_1 (ptid_t ptid, int *wstat, int options)
if (event_child->must_set_ptrace_flags)
{
ptrace (PTRACE_SETOPTIONS, lwpid_of (event_child),
0, PTRACE_O_TRACECLONE);
0, (PTRACE_ARG4_TYPE) PTRACE_O_TRACECLONE);
event_child->must_set_ptrace_flags = 0;
}
@ -1866,7 +1867,10 @@ linux_resume_one_lwp (struct lwp_info *lwp,
errno = 0;
lwp->stopped = 0;
lwp->stepping = step;
ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, lwpid_of (lwp), 0, signal);
ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, lwpid_of (lwp), 0,
/* Coerce to a uintptr_t first to avoid potential gcc warning
of coercing an 8 byte integer to a 4 byte pointer. */
(PTRACE_ARG4_TYPE) (uintptr_t) signal);
current_inferior = saved_inferior;
if (errno)
@ -2149,7 +2153,10 @@ fetch_register (struct regcache *regcache, int regno)
{
errno = 0;
*(PTRACE_XFER_TYPE *) (buf + i) =
ptrace (PTRACE_PEEKUSER, pid, (PTRACE_ARG3_TYPE) regaddr, 0);
ptrace (PTRACE_PEEKUSER, pid,
/* Coerce to a uintptr_t first to avoid potential gcc warning
of coercing an 8 byte integer to a 4 byte pointer. */
(PTRACE_ARG3_TYPE) (uintptr_t) regaddr, 0);
regaddr += sizeof (PTRACE_XFER_TYPE);
if (errno != 0)
{
@ -2219,8 +2226,11 @@ usr_store_inferior_registers (struct regcache *regcache, int regno)
for (i = 0; i < size; i += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
ptrace (PTRACE_POKEUSER, pid, (PTRACE_ARG3_TYPE) regaddr,
*(PTRACE_XFER_TYPE *) (buf + i));
ptrace (PTRACE_POKEUSER, pid,
/* Coerce to a uintptr_t first to avoid potential gcc warning
about coercing an 8 byte integer to a 4 byte pointer. */
(PTRACE_ARG3_TYPE) (uintptr_t) regaddr,
(PTRACE_ARG4_TYPE) *(PTRACE_XFER_TYPE *) (buf + i));
if (errno != 0)
{
/* At this point, ESRCH should mean the process is
@ -2472,7 +2482,10 @@ linux_read_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len)
for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
buffer[i] = ptrace (PTRACE_PEEKTEXT, pid, (PTRACE_ARG3_TYPE) addr, 0);
/* Coerce the 3rd arg to a uintptr_t first to avoid potential gcc warning
about coercing an 8 byte integer to a 4 byte pointer. */
buffer[i] = ptrace (PTRACE_PEEKTEXT, pid,
(PTRACE_ARG3_TYPE) (uintptr_t) addr, 0);
if (errno)
return errno;
}
@ -2519,14 +2532,19 @@ linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len)
/* Fill start and end extra bytes of buffer with existing memory data. */
buffer[0] = ptrace (PTRACE_PEEKTEXT, pid, (PTRACE_ARG3_TYPE) addr, 0);
/* Coerce the 3rd arg to a uintptr_t first to avoid potential gcc warning
about coercing an 8 byte integer to a 4 byte pointer. */
buffer[0] = ptrace (PTRACE_PEEKTEXT, pid,
(PTRACE_ARG3_TYPE) (uintptr_t) addr, 0);
if (count > 1)
{
buffer[count - 1]
= ptrace (PTRACE_PEEKTEXT, pid,
(PTRACE_ARG3_TYPE) (addr + (count - 1)
* sizeof (PTRACE_XFER_TYPE)),
/* Coerce to a uintptr_t first to avoid potential gcc warning
about coercing an 8 byte integer to a 4 byte pointer. */
(PTRACE_ARG3_TYPE) (uintptr_t) (addr + (count - 1)
* sizeof (PTRACE_XFER_TYPE)),
0);
}
@ -2539,7 +2557,11 @@ linux_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, int len)
for (i = 0; i < count; i++, addr += sizeof (PTRACE_XFER_TYPE))
{
errno = 0;
ptrace (PTRACE_POKETEXT, pid, (PTRACE_ARG3_TYPE) addr, buffer[i]);
ptrace (PTRACE_POKETEXT, pid,
/* Coerce to a uintptr_t first to avoid potential gcc warning
about coercing an 8 byte integer to a 4 byte pointer. */
(PTRACE_ARG3_TYPE) (uintptr_t) addr,
(PTRACE_ARG4_TYPE) buffer[i]);
if (errno)
return errno;
}
@ -2606,7 +2628,8 @@ linux_test_for_tracefork (void)
if (! WIFSTOPPED (status))
error ("linux_test_for_tracefork: waitpid: unexpected status %d.", status);
ret = ptrace (PTRACE_SETOPTIONS, child_pid, 0, PTRACE_O_TRACEFORK);
ret = ptrace (PTRACE_SETOPTIONS, child_pid, 0,
(PTRACE_ARG4_TYPE) PTRACE_O_TRACEFORK);
if (ret != 0)
{
ret = ptrace (PTRACE_KILL, child_pid, 0, 0);