diff options
| -rw-r--r-- | gdb/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/solib-svr4.c | 62 |
2 files changed, 23 insertions, 46 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 0ef7a73..d0cabed 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,12 @@ 2018-03-30 Tom Tromey <tom@tromey.com> + * solib-svr4.c (lm_info_read): Use gdb::byte_vector. Return + std::unique_ptr. + (svr4_keep_data_in_core): Update. + (svr4_read_so_list): Update. + +2018-03-30 Tom Tromey <tom@tromey.com> + * windows-nat.c (handle_output_debug_string, handle_exception): Update. * target.h (target_read_string): Update. diff --git a/gdb/solib-svr4.c b/gdb/solib-svr4.c index d8d047d..11e29c1 100644 --- a/gdb/solib-svr4.c +++ b/gdb/solib-svr4.c @@ -168,28 +168,22 @@ svr4_same (struct so_list *gdb, struct so_list *inferior) return (svr4_same_1 (gdb->so_original_name, inferior->so_original_name)); } -static lm_info_svr4 * +static std::unique_ptr<lm_info_svr4> lm_info_read (CORE_ADDR lm_addr) { struct link_map_offsets *lmo = svr4_fetch_link_map_offsets (); - gdb_byte *lm; - lm_info_svr4 *lm_info; - struct cleanup *back_to; + std::unique_ptr<lm_info_svr4> lm_info; - lm = (gdb_byte *) xmalloc (lmo->link_map_size); - back_to = make_cleanup (xfree, lm); + gdb::byte_vector lm (lmo->link_map_size); - if (target_read_memory (lm_addr, lm, lmo->link_map_size) != 0) - { - warning (_("Error reading shared library list entry at %s"), - paddress (target_gdbarch (), lm_addr)), - lm_info = NULL; - } + if (target_read_memory (lm_addr, lm.data (), lmo->link_map_size) != 0) + warning (_("Error reading shared library list entry at %s"), + paddress (target_gdbarch (), lm_addr)); else { struct type *ptr_type = builtin_type (target_gdbarch ())->builtin_data_ptr; - lm_info = new lm_info_svr4; + lm_info.reset (new lm_info_svr4); lm_info->lm_addr = lm_addr; lm_info->l_addr_inferior = extract_typed_address (&lm[lmo->l_addr_offset], @@ -203,8 +197,6 @@ lm_info_read (CORE_ADDR lm_addr) ptr_type); } - do_cleanups (back_to); - return lm_info; } @@ -958,8 +950,6 @@ svr4_keep_data_in_core (CORE_ADDR vaddr, unsigned long size) { struct svr4_info *info; CORE_ADDR ldsomap; - struct so_list *newobj; - struct cleanup *old_chain; CORE_ADDR name_lm; info = get_svr4_info (); @@ -973,13 +963,8 @@ svr4_keep_data_in_core (CORE_ADDR vaddr, unsigned long size) if (!ldsomap) return 0; - newobj = XCNEW (struct so_list); - old_chain = make_cleanup (xfree, newobj); - lm_info_svr4 *li = lm_info_read (ldsomap); - newobj->lm_info = li; - make_cleanup (xfree, newobj->lm_info); + std::unique_ptr<lm_info_svr4> li = lm_info_read (ldsomap); name_lm = li != NULL ? li->l_name : 0; - do_cleanups (old_chain); return (name_lm >= vaddr && name_lm < vaddr + size); } @@ -995,8 +980,7 @@ open_symbol_file_object (int from_tty) struct link_map_offsets *lmo = svr4_fetch_link_map_offsets (); struct type *ptr_type = builtin_type (target_gdbarch ())->builtin_data_ptr; int l_name_size = TYPE_LENGTH (ptr_type); - gdb_byte *l_name_buf = (gdb_byte *) xmalloc (l_name_size); - struct cleanup *cleanups = make_cleanup (xfree, l_name_buf); + gdb::byte_vector l_name_buf (l_name_size); struct svr4_info *info = get_svr4_info (); symfile_add_flags add_flags = 0; @@ -1005,38 +989,26 @@ open_symbol_file_object (int from_tty) if (symfile_objfile) if (!query (_("Attempt to reload symbols from process? "))) - { - do_cleanups (cleanups); - return 0; - } + return 0; /* Always locate the debug struct, in case it has moved. */ info->debug_base = 0; if (locate_base (info) == 0) - { - do_cleanups (cleanups); - return 0; /* failed somehow... */ - } + return 0; /* failed somehow... */ /* First link map member should be the executable. */ lm = solib_svr4_r_map (info); if (lm == 0) - { - do_cleanups (cleanups); - return 0; /* failed somehow... */ - } + return 0; /* failed somehow... */ /* Read address of name from target memory to GDB. */ - read_memory (lm + lmo->l_name_offset, l_name_buf, l_name_size); + read_memory (lm + lmo->l_name_offset, l_name_buf.data (), l_name_size); /* Convert the address to host format. */ - l_name = extract_typed_address (l_name_buf, ptr_type); + l_name = extract_typed_address (l_name_buf.data (), ptr_type); if (l_name == 0) - { - do_cleanups (cleanups); - return 0; /* No filename. */ - } + return 0; /* No filename. */ /* Now fetch the filename from target memory. */ target_read_string (l_name, &filename, SO_NAME_MAX_PATH_SIZE - 1, &errcode); @@ -1045,14 +1017,12 @@ open_symbol_file_object (int from_tty) { warning (_("failed to read exec filename from attached file: %s"), safe_strerror (errcode)); - do_cleanups (cleanups); return 0; } /* Have a pathname: read the symbol file. */ symbol_file_add_main (filename.get (), add_flags); - do_cleanups (cleanups); return 1; } @@ -1342,7 +1312,7 @@ svr4_read_so_list (CORE_ADDR lm, CORE_ADDR prev_lm, so_list_up newobj (XCNEW (struct so_list)); - lm_info_svr4 *li = lm_info_read (lm); + lm_info_svr4 *li = lm_info_read (lm).release (); newobj->lm_info = li; if (li == NULL) return 0; |