Alexandre Julliard : server: Move ldt_copy to the init_process_done request and make it a client_ptr_t.
Module: wine Branch: master Commit: 2cf868c0be353362e94186442f23d210beccdae7 URL: http://source.winehq.org/git/wine.git/?a=commit;h=2cf868c0be353362e94186442f... Author: Alexandre Julliard <julliard(a)winehq.org> Date: Tue Dec 30 22:47:48 2008 +0100 server: Move ldt_copy to the init_process_done request and make it a client_ptr_t. --- dlls/ntdll/server.c | 10 ++++++---- include/wine/server_protocol.h | 5 +++-- server/mach.c | 5 ++--- server/process.c | 4 +++- server/process.h | 2 +- server/procfs.c | 11 ++++++++--- server/protocol.def | 3 ++- server/ptrace.c | 4 ++-- server/thread.c | 3 +-- server/trace.c | 5 ++++- 10 files changed, 32 insertions(+), 20 deletions(-) diff --git a/dlls/ntdll/server.c b/dlls/ntdll/server.c index 04d9c21..95bba73 100644 --- a/dlls/ntdll/server.c +++ b/dlls/ntdll/server.c @@ -993,9 +993,12 @@ NTSTATUS server_init_process_done(void) /* Signal the parent process to continue */ SERVER_START_REQ( init_process_done ) { - req->module = wine_server_client_ptr( peb->ImageBaseAddress ); - req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint; - req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI); + req->module = wine_server_client_ptr( peb->ImageBaseAddress ); +#ifdef __i386__ + req->ldt_copy = wine_server_client_ptr( &wine_ldt_copy ); +#endif + req->entry = (char *)peb->ImageBaseAddress + nt->OptionalHeader.AddressOfEntryPoint; + req->gui = (nt->OptionalHeader.Subsystem != IMAGE_SUBSYSTEM_WINDOWS_CUI); status = wine_server_call( req ); } SERVER_END_REQ; @@ -1048,7 +1051,6 @@ size_t server_init_thread( int unix_pid, int unix_tid, void *entry_point ) req->teb = NtCurrentTeb(); req->peb = NtCurrentTeb()->Peb; req->entry = entry_point; - req->ldt_copy = &wine_ldt_copy; req->reply_fd = reply_pipe[1]; req->wait_fd = ntdll_get_thread_data()->wait_fd[1]; req->debug_level = (TRACE_ON(server) != 0); diff --git a/include/wine/server_protocol.h b/include/wine/server_protocol.h index 1b34cf3..1a8f0de 100644 --- a/include/wine/server_protocol.h +++ b/include/wine/server_protocol.h @@ -542,6 +542,7 @@ struct init_process_done_request struct request_header __header; int gui; mod_handle_t module; + client_ptr_t ldt_copy; void* entry; }; struct init_process_done_reply @@ -560,7 +561,7 @@ struct init_thread_request void* teb; void* peb; void* entry; - void* ldt_copy; + int unused; int reply_fd; int wait_fd; }; @@ -5061,6 +5062,6 @@ union generic_reply struct set_window_layered_info_reply set_window_layered_info_reply; }; -#define SERVER_PROTOCOL_VERSION 373 +#define SERVER_PROTOCOL_VERSION 374 #endif /* __WINE_WINE_SERVER_PROTOCOL_H */ diff --git a/server/mach.c b/server/mach.c index 05652ab..fcc87a3 100644 --- a/server/mach.c +++ b/server/mach.c @@ -446,9 +446,8 @@ void get_selector_entry( struct thread *thread, int entry, unsigned int *base, if ((ret = task_suspend( process_port )) == KERN_SUCCESS) { - void *ptr = process->ldt_copy; - vm_offset_t offset = (unsigned long)ptr % page_size; - vm_address_t aligned_address = (vm_address_t)((char *)ptr - offset); + vm_offset_t offset = process->ldt_copy % page_size; + vm_address_t aligned_address = (vm_address_t)(process->ldt_copy - offset); vm_size_t aligned_size = (total_size + offset + page_size - 1) / page_size * page_size; ret = vm_read( process_port, aligned_address, aligned_size, &data, &bytes_read ); diff --git a/server/process.c b/server/process.c index 208fb7d..a0c66ab 100644 --- a/server/process.c +++ b/server/process.c @@ -332,7 +332,7 @@ struct thread *create_process( int fd, struct thread *parent_thread, int inherit process->idle_event = NULL; process->queue = NULL; process->peb = NULL; - process->ldt_copy = NULL; + process->ldt_copy = 0; process->winstation = 0; process->desktop = 0; process->token = NULL; @@ -1018,6 +1018,8 @@ DECL_HANDLER(init_process_done) list_remove( &dll->entry ); list_add_head( &process->dlls, &dll->entry ); + process->ldt_copy = req->ldt_copy; + generate_startup_debug_events( process, req->entry ); set_process_startup_state( process, STARTUP_DONE ); diff --git a/server/process.h b/server/process.h index c8313ff..5d3b456 100644 --- a/server/process.h +++ b/server/process.h @@ -80,7 +80,7 @@ struct process struct token *token; /* security token associated with this process */ struct list dlls; /* list of loaded dlls */ void *peb; /* PEB address in client address space */ - void *ldt_copy; /* pointer to LDT copy in client addr space */ + client_ptr_t ldt_copy; /* pointer to LDT copy in client addr space */ unsigned int trace_data; /* opaque data used by the process tracing mechanism */ }; diff --git a/server/procfs.c b/server/procfs.c index 8c789c5..28777d8 100644 --- a/server/procfs.c +++ b/server/procfs.c @@ -174,10 +174,15 @@ void get_selector_entry( struct thread *thread, int entry, unsigned int *base, unsigned int *limit, unsigned char *flags ) { ssize_t ret; - off_t pos = (off_t)thread->process->ldt_copy; - int fd = open_proc_as( thread->process, O_RDONLY ); + off_t pos = thread->process->ldt_copy; + int fd; - if (fd == -1) return; + if (!pos) + { + set_error( STATUS_ACCESS_DENIED ); + return 0; + } + if ((fd = open_proc_as( thread->process, O_RDONLY )) == -1) return; ret = pread( fd, base, sizeof(*base), pos + entry*sizeof(int) ); if (ret != sizeof(*base)) goto error; diff --git a/server/protocol.def b/server/protocol.def index 83fc7b8..e5c9676 100644 --- a/server/protocol.def +++ b/server/protocol.def @@ -536,6 +536,7 @@ typedef union @REQ(init_process_done) int gui; /* is it a GUI process? */ mod_handle_t module; /* main module base address */ + client_ptr_t ldt_copy; /* address of LDT copy (in thread address space) */ void* entry; /* process entry point */ @END @@ -548,7 +549,7 @@ typedef union void* teb; /* TEB of new thread (in thread address space) */ void* peb; /* address of PEB (in thread address space) */ void* entry; /* thread entry point (in thread address space) */ - void* ldt_copy; /* address of LDT copy (in thread address space) */ + int unused; /* was: ldt_copy */ int reply_fd; /* fd for reply pipe */ int wait_fd; /* fd for blocking calls pipe */ @REPLY diff --git a/server/ptrace.c b/server/ptrace.c index accaf4d..b446de9 100644 --- a/server/ptrace.c +++ b/server/ptrace.c @@ -505,10 +505,10 @@ void get_selector_entry( struct thread *thread, int entry, unsigned int *base, if (suspend_for_ptrace( thread )) { unsigned char flags_buf[4]; - int *addr = (int *)thread->process->ldt_copy + entry; + int *addr = (int *)(unsigned long)thread->process->ldt_copy + entry; if (read_thread_int( thread, addr, (int *)base ) == -1) goto done; if (read_thread_int( thread, addr + 8192, (int *)limit ) == -1) goto done; - addr = (int *)thread->process->ldt_copy + 2*8192 + (entry >> 2); + addr = (int *)(unsigned long)thread->process->ldt_copy + 2*8192 + (entry >> 2); if (read_thread_int( thread, addr, (int *)flags_buf ) == -1) goto done; *flags = flags_buf[entry & 3]; done: diff --git a/server/thread.c b/server/thread.c index bc4e9e9..675deda 100644 --- a/server/thread.c +++ b/server/thread.c @@ -1032,7 +1032,7 @@ DECL_HANDLER(init_thread) if (!(current->wait_fd = create_anonymous_fd( &thread_fd_ops, wait_fd, ¤t->obj, 0 ))) return; - if (!is_valid_address(req->teb) || !is_valid_address(req->peb) || !is_valid_address(req->ldt_copy)) + if (!is_valid_address(req->teb) || !is_valid_address(req->peb)) { set_error( STATUS_INVALID_PARAMETER ); return; @@ -1046,7 +1046,6 @@ DECL_HANDLER(init_thread) { process->unix_pid = current->unix_pid; process->peb = req->peb; - process->ldt_copy = req->ldt_copy; reply->info_size = init_process( current ); } else diff --git a/server/trace.c b/server/trace.c index b4ea418..db67b2a 100644 --- a/server/trace.c +++ b/server/trace.c @@ -971,6 +971,9 @@ static void dump_init_process_done_request( const struct init_process_done_reque fprintf( stderr, " module=" ); dump_uint64( &req->module ); fprintf( stderr, "," ); + fprintf( stderr, " ldt_copy=" ); + dump_uint64( &req->ldt_copy ); + fprintf( stderr, "," ); fprintf( stderr, " entry=%p", req->entry ); } @@ -982,7 +985,7 @@ static void dump_init_thread_request( const struct init_thread_request *req ) fprintf( stderr, " teb=%p,", req->teb ); fprintf( stderr, " peb=%p,", req->peb ); fprintf( stderr, " entry=%p,", req->entry ); - fprintf( stderr, " ldt_copy=%p,", req->ldt_copy ); + fprintf( stderr, " unused=%d,", req->unused ); fprintf( stderr, " reply_fd=%d,", req->reply_fd ); fprintf( stderr, " wait_fd=%d", req->wait_fd ); }
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Alexandre Julliard