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author | Thomas Schwinge <thomas@codesourcery.com> | 2016-11-25 11:02:17 +0100 |
---|---|---|
committer | Thomas Schwinge <thomas@codesourcery.com> | 2016-12-08 08:27:07 +0100 |
commit | 0947023d1d4b5d8803a1065d622f707010b2bcdc (patch) | |
tree | 89739d759c325f3e99ddab9178a2d45f502a1be4 /gdb | |
parent | 785102a7d34f2d48f9a1616bf931fea6de2385fb (diff) | |
download | binutils-0947023d1d4b5d8803a1065d622f707010b2bcdc.zip binutils-0947023d1d4b5d8803a1065d622f707010b2bcdc.tar.gz binutils-0947023d1d4b5d8803a1065d622f707010b2bcdc.tar.bz2 |
Hurd, C++: kern_return_t vs. error_t
GNU/Hurd uses its own "typedef enum __error_t_codes error_t;"
([glibc]/sysdeps/mach/hurd/bits/errno.h), contrary to the default
"typedef int error_t;" ([glibc]/stdlib/errno.h).
The Mach/Hurd RPCs return kern_return_t values, for which, upon assigning them
to an error_t variable, GCC in C++ mode tells us "error: invalid conversion
from 'kern_return_t {aka int}' to 'error_t {aka __error_t_codes}'". Instead of
casting all these RPC return values to "error_t", just use "kern_return_t"
variables:
gdb/
* gnu-nat.c (proc_get_exception_port, proc_set_exception_port)
(INF_RESUME_MSGPORT_RPC, proc_get_state, _proc_get_exc_port)
(proc_steal_exc_port, proc_restore_exc_port, make_proc)
(inf_startup, inf_set_pid, inf_validate_procinfo)
(inf_validate_task_sc, inf_set_traced, inf_validate_procs)
(inf_signal, inf_continue, gnu_wait, S_exception_raise_request)
(do_mach_notify_dead_name, S_proc_wait_reply)
(S_msg_sig_post_untraced_reply, S_msg_sig_post_reply)
(port_msgs_queued, gnu_read_inferior, gnu_write_inferior)
(gnu_find_memory_regions, steal_exc_port, thread_takeover_sc_cmd)
(flush_inferior_icache): Instead of "error_t" use "kern_return_t".
* i386-gnu-nat.c (fetch_fpregs, store_fpregs, i386_gnu_dr_get)
(i386_gnu_dr_set): Likewise.
Diffstat (limited to 'gdb')
-rw-r--r-- | gdb/ChangeLog | 14 | ||||
-rw-r--r-- | gdb/gnu-nat.c | 66 | ||||
-rw-r--r-- | gdb/i386-gnu-nat.c | 8 |
3 files changed, 51 insertions, 37 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index b40ac6f..a40eb29 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,19 @@ 2016-12-08 Thomas Schwinge <thomas@codesourcery.com> + * gnu-nat.c (proc_get_exception_port, proc_set_exception_port) + (INF_RESUME_MSGPORT_RPC, proc_get_state, _proc_get_exc_port) + (proc_steal_exc_port, proc_restore_exc_port, make_proc) + (inf_startup, inf_set_pid, inf_validate_procinfo) + (inf_validate_task_sc, inf_set_traced, inf_validate_procs) + (inf_signal, inf_continue, gnu_wait, S_exception_raise_request) + (do_mach_notify_dead_name, S_proc_wait_reply) + (S_msg_sig_post_untraced_reply, S_msg_sig_post_reply) + (port_msgs_queued, gnu_read_inferior, gnu_write_inferior) + (gnu_find_memory_regions, steal_exc_port, thread_takeover_sc_cmd) + (flush_inferior_icache): Instead of "error_t" use "kern_return_t". + * i386-gnu-nat.c (fetch_fpregs, store_fpregs, i386_gnu_dr_get) + (i386_gnu_dr_set): Likewise. + * gnu-nat.c (set_task_pause_cmd, set_signals_cmd) (set_exceptions_cmd): Add variants taking an "int arg" instead of a "char *". Make the "char *" variants use the former. diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c index 29bd9b9..ae4430d 100644 --- a/gdb/gnu-nat.c +++ b/gdb/gnu-nat.c @@ -113,8 +113,8 @@ void proc_abort (struct proc *proc, int force); struct proc *make_proc (struct inf *inf, mach_port_t port, int tid); struct proc *_proc_free (struct proc *proc); int proc_update_sc (struct proc *proc); -error_t proc_get_exception_port (struct proc *proc, mach_port_t * port); -error_t proc_set_exception_port (struct proc *proc, mach_port_t port); +kern_return_t proc_get_exception_port (struct proc *proc, mach_port_t * port); +kern_return_t proc_set_exception_port (struct proc *proc, mach_port_t port); static mach_port_t _proc_get_exc_port (struct proc *proc); void proc_steal_exc_port (struct proc *proc, mach_port_t exc_port); void proc_restore_exc_port (struct proc *proc); @@ -133,7 +133,7 @@ int proc_trace (struct proc *proc, int set); afterwards). This effects INF's threads' resume_sc count. */ #define INF_RESUME_MSGPORT_RPC(inf, rpc_expr) \ (inf_set_threads_resume_sc_for_signal_thread (inf) \ - ? ({ error_t __e; \ + ? ({ kern_return_t __e; \ inf_resume (inf); \ __e = INF_MSGPORT_RPC (inf, rpc_expr); \ inf_suspend (inf); \ @@ -367,7 +367,7 @@ proc_get_state (struct proc *proc, int will_modify) if (!proc->state_valid) { mach_msg_type_number_t state_size = THREAD_STATE_SIZE; - error_t err = + kern_return_t err = thread_get_state (proc->port, THREAD_STATE_FLAVOR, (thread_state_t) &proc->state, &state_size); @@ -387,7 +387,7 @@ proc_get_state (struct proc *proc, int will_modify) /* Set PORT to PROC's exception port. */ -error_t +kern_return_t proc_get_exception_port (struct proc * proc, mach_port_t * port) { if (proc_is_task (proc)) @@ -397,7 +397,7 @@ proc_get_exception_port (struct proc * proc, mach_port_t * port) } /* Set PROC's exception port to PORT. */ -error_t +kern_return_t proc_set_exception_port (struct proc * proc, mach_port_t port) { proc_debug (proc, "setting exception port: %lu", port); @@ -412,7 +412,7 @@ static mach_port_t _proc_get_exc_port (struct proc *proc) { mach_port_t exc_port; - error_t err = proc_get_exception_port (proc, &exc_port); + kern_return_t err = proc_get_exception_port (proc, &exc_port); if (err) /* PROC must be dead. */ @@ -438,7 +438,7 @@ proc_steal_exc_port (struct proc *proc, mach_port_t exc_port) if (cur_exc_port) { - error_t err = 0; + kern_return_t err = 0; proc_debug (proc, "inserting exception port: %lu", exc_port); @@ -481,7 +481,7 @@ proc_restore_exc_port (struct proc *proc) if (cur_exc_port) { - error_t err = 0; + kern_return_t err = 0; proc_debug (proc, "restoring real exception port"); @@ -537,7 +537,7 @@ static int next_thread_id = 1; struct proc * make_proc (struct inf *inf, mach_port_t port, int tid) { - error_t err; + kern_return_t err; mach_port_t prev_port = MACH_PORT_NULL; struct proc *proc = XNEW (struct proc); @@ -713,7 +713,7 @@ inf_cleanup (struct inf *inf) void inf_startup (struct inf *inf, int pid) { - error_t err; + kern_return_t err; inf_debug (inf, "startup: pid = %d", pid); @@ -745,7 +745,7 @@ inf_set_pid (struct inf *inf, pid_t pid) task_port = MACH_PORT_NULL; else { - error_t err = proc_pid2task (proc_server, pid, &task_port); + kern_return_t err = proc_pid2task (proc_server, pid, &task_port); if (err) error (_("Error getting task for pid %d: %s"), @@ -794,7 +794,7 @@ inf_validate_procinfo (struct inf *inf) struct procinfo *pi; mach_msg_type_number_t pi_len = 0; int info_flags = 0; - error_t err = + kern_return_t err = proc_getprocinfo (proc_server, inf->pid, &info_flags, (procinfo_t *) &pi, &pi_len, &noise, &noise_len); @@ -822,7 +822,7 @@ inf_validate_task_sc (struct inf *inf) mach_msg_type_number_t pi_len = 0; int info_flags = PI_FETCH_TASKINFO; int suspend_count = -1; - error_t err; + kern_return_t err; retry: err = proc_getprocinfo (proc_server, inf->pid, &info_flags, @@ -875,7 +875,7 @@ inf_set_traced (struct inf *inf, int on) /* Make it take effect immediately. */ { sigset_t mask = on ? ~(sigset_t) 0 : 0; - error_t err = + kern_return_t err = INF_RESUME_MSGPORT_RPC (inf, msg_set_init_int (msgport, refport, INIT_TRACEMASK, mask)); @@ -1007,7 +1007,7 @@ inf_validate_procs (struct inf *inf) if (task) { - error_t err = task_threads (task->port, &threads, &num_threads); + kern_return_t err = task_threads (task->port, &threads, &num_threads); inf_debug (inf, "fetching threads"); if (err) @@ -1324,7 +1324,7 @@ inf_restore_exc_ports (struct inf *inf) void inf_signal (struct inf *inf, enum gdb_signal sig) { - error_t err = 0; + kern_return_t err = 0; int host_sig = gdb_signal_to_host (sig); #define NAME gdb_signal_to_name (sig) @@ -1413,7 +1413,7 @@ void inf_continue (struct inf *inf) { process_t proc; - error_t err = proc_pid2proc (proc_server, inf->pid, &proc); + kern_return_t err = proc_pid2proc (proc_server, inf->pid, &proc); if (!err) { @@ -1454,7 +1454,7 @@ gnu_wait (struct target_ops *ops, mach_msg_type_t type; int data[8000]; } msg; - error_t err; + kern_return_t err; struct proc *thread; struct inf *inf = gnu_current_inf; @@ -1646,7 +1646,7 @@ rewait: /* The rpc handler called by exc_server. */ -error_t +kern_return_t S_exception_raise_request (mach_port_t port, mach_port_t reply_port, thread_t thread_port, task_t task_port, int exception, int code, int subcode) @@ -1743,7 +1743,7 @@ inf_task_died_status (struct inf *inf) } /* Notify server routines. The only real one is dead name notification. */ -error_t +kern_return_t do_mach_notify_dead_name (mach_port_t notify, mach_port_t dead_port) { struct inf *inf = waiting_inf; @@ -1806,8 +1806,8 @@ ILL_RPC (do_mach_notify_send_once, /* Process_reply server routines. We only use process_wait_reply. */ -error_t -S_proc_wait_reply (mach_port_t reply, error_t err, +kern_return_t +S_proc_wait_reply (mach_port_t reply, kern_return_t err, int status, int sigcode, rusage_t rusage, pid_t pid) { struct inf *inf = waiting_inf; @@ -1922,8 +1922,8 @@ ILL_RPC (S_proc_get_code_reply, /* Msg_reply server routines. We only use msg_sig_post_untraced_reply. */ -error_t -S_msg_sig_post_untraced_reply (mach_port_t reply, error_t err) +kern_return_t +S_msg_sig_post_untraced_reply (mach_port_t reply, kern_return_t err) { struct inf *inf = waiting_inf; @@ -1953,14 +1953,14 @@ S_msg_sig_post_untraced_reply (mach_port_t reply, error_t err) } ILL_RPC (S_msg_sig_post_reply, - mach_port_t reply, error_t err) + mach_port_t reply, kern_return_t err) /* Returns the number of messages queued for the receive right PORT. */ static mach_port_msgcount_t port_msgs_queued (mach_port_t port) { struct mach_port_status status; - error_t err = + kern_return_t err = mach_port_get_receive_status (mach_task_self (), port, &status); if (err) @@ -2288,7 +2288,7 @@ gnu_thread_alive (struct target_ops *ops, ptid_t ptid) static int gnu_read_inferior (task_t task, CORE_ADDR addr, gdb_byte *myaddr, int length) { - error_t err; + kern_return_t err; vm_address_t low_address = (vm_address_t) trunc_page (addr); vm_size_t aligned_length = (vm_size_t) round_page (addr + length) - low_address; @@ -2335,7 +2335,7 @@ static int gnu_write_inferior (task_t task, CORE_ADDR addr, const gdb_byte *myaddr, int length) { - error_t err = 0; + kern_return_t err; vm_address_t low_address = (vm_address_t) trunc_page (addr); vm_size_t aligned_length = (vm_size_t) round_page (addr + length) - low_address; @@ -2550,7 +2550,7 @@ static int gnu_find_memory_regions (struct target_ops *self, find_memory_region_ftype func, void *data) { - error_t err; + kern_return_t err; task_t task; vm_address_t region_address, last_region_address, last_region_end; vm_prot_t last_protection; @@ -2901,7 +2901,7 @@ show_thread_default_detach_sc_cmd (char *args, int from_tty) static void steal_exc_port (struct proc *proc, mach_port_t name) { - error_t err; + kern_return_t err; mach_port_t port; mach_msg_type_name_t port_type; @@ -3389,7 +3389,7 @@ thread_takeover_sc_cmd (char *args, int from_tty) thread_basic_info_data_t _info; thread_basic_info_t info = &_info; mach_msg_type_number_t info_len = THREAD_BASIC_INFO_COUNT; - error_t err = + kern_return_t err = thread_info (thread->port, THREAD_BASIC_INFO, (int *) &info, &info_len); if (err) error (("%s."), safe_strerror (err)); @@ -3500,7 +3500,7 @@ void flush_inferior_icache (CORE_ADDR pc, int amount) { vm_machine_attribute_val_t flush = MATTR_VAL_ICACHE_FLUSH; - error_t ret; + kern_return_t ret; ret = vm_machine_attribute (gnu_current_inf->task->port, pc, diff --git a/gdb/i386-gnu-nat.c b/gdb/i386-gnu-nat.c index c6c53ca..add0aa4 100644 --- a/gdb/i386-gnu-nat.c +++ b/gdb/i386-gnu-nat.c @@ -58,7 +58,7 @@ fetch_fpregs (struct regcache *regcache, struct proc *thread) { mach_msg_type_number_t count = i386_FLOAT_STATE_COUNT; struct i386_float_state state; - error_t err; + kern_return_t err; err = thread_get_state (thread->port, i386_FLOAT_STATE, (thread_state_t) &state, &count); @@ -148,7 +148,7 @@ store_fpregs (const struct regcache *regcache, struct proc *thread, int regno) { mach_msg_type_number_t count = i386_FLOAT_STATE_COUNT; struct i386_float_state state; - error_t err; + kern_return_t err; err = thread_get_state (thread->port, i386_FLOAT_STATE, (thread_state_t) &state, &count); @@ -279,7 +279,7 @@ static void i386_gnu_dr_get (struct i386_debug_state *regs, struct proc *thread) { mach_msg_type_number_t count = i386_DEBUG_STATE_COUNT; - error_t err; + kern_return_t err; err = thread_get_state (thread->port, i386_DEBUG_STATE, (thread_state_t) regs, &count); @@ -293,7 +293,7 @@ i386_gnu_dr_get (struct i386_debug_state *regs, struct proc *thread) static void i386_gnu_dr_set (const struct i386_debug_state *regs, struct proc *thread) { - error_t err; + kern_return_t err; err = thread_set_state (thread->port, i386_DEBUG_STATE, (thread_state_t) regs, i386_DEBUG_STATE_COUNT); |