diff options
| -rw-r--r-- | gdb/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/tui/tui-disasm.c | 71 |
2 files changed, 33 insertions, 45 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index b634e52..00d97c6 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,12 @@ 2019-09-20 Tom Tromey <tom@tromey.com> + * tui/tui-disasm.c (struct tui_asm_line) <addr_string, insn>: Now + std::string. + (tui_disassemble): Add "pos" parameter. + (tui_disasm_window::set_contents): Simplify. + +2019-09-20 Tom Tromey <tom@tromey.com> + * tui/tui-winsource.h (struct tui_source_window_base) <show_source_content>: Now private. * tui/tui-winsource.c diff --git a/gdb/tui/tui-disasm.c b/gdb/tui/tui-disasm.c index 2a33132..53ea061 100644 --- a/gdb/tui/tui-disasm.c +++ b/gdb/tui/tui-disasm.c @@ -44,34 +44,32 @@ struct tui_asm_line { CORE_ADDR addr; - char *addr_string; - char *insn; + std::string addr_string; + std::string insn; }; /* Function to set the disassembly window's content. Disassemble count lines starting at pc. Return address of the count'th instruction after pc. */ static CORE_ADDR -tui_disassemble (struct gdbarch *gdbarch, struct tui_asm_line *asm_lines, - CORE_ADDR pc, int count) +tui_disassemble (struct gdbarch *gdbarch, + std::vector<tui_asm_line> &asm_lines, + CORE_ADDR pc, int pos, int count) { string_file gdb_dis_out; /* Now construct each line. */ - for (; count > 0; count--, asm_lines++) + for (int i = 0; i < count; ++i) { - xfree (asm_lines->addr_string); - xfree (asm_lines->insn); - print_address (gdbarch, pc, &gdb_dis_out); - asm_lines->addr = pc; - asm_lines->addr_string = xstrdup (gdb_dis_out.c_str ()); + asm_lines[pos + i].addr = pc; + asm_lines[pos + i].addr_string = std::move (gdb_dis_out.string ()); gdb_dis_out.clear (); pc = pc + gdb_print_insn (gdbarch, pc, &gdb_dis_out, NULL); - asm_lines->insn = xstrdup (gdb_dis_out.c_str ()); + asm_lines[pos + i].insn = std::move (gdb_dis_out.string ()); /* Reset the buffer to empty. */ gdb_dis_out.clear (); @@ -87,20 +85,17 @@ tui_find_disassembly_address (struct gdbarch *gdbarch, CORE_ADDR pc, int from) { CORE_ADDR new_low; int max_lines; - int i; - struct tui_asm_line *asm_lines; max_lines = (from > 0) ? from : - from; if (max_lines <= 1) - return pc; + return pc; - asm_lines = XALLOCAVEC (struct tui_asm_line, max_lines); - memset (asm_lines, 0, sizeof (struct tui_asm_line) * max_lines); + std::vector<tui_asm_line> asm_lines (max_lines); new_low = pc; if (from > 0) { - tui_disassemble (gdbarch, asm_lines, pc, max_lines); + tui_disassemble (gdbarch, asm_lines, pc, 0, max_lines); new_low = asm_lines[max_lines - 1].addr; } else @@ -122,7 +117,7 @@ tui_find_disassembly_address (struct gdbarch *gdbarch, CORE_ADDR pc, int from) else new_low += 1 * max_lines; - tui_disassemble (gdbarch, asm_lines, new_low, max_lines); + tui_disassemble (gdbarch, asm_lines, new_low, 0, max_lines); last_addr = asm_lines[pos].addr; } while (last_addr > pc && msymbol.minsym); @@ -139,8 +134,8 @@ tui_find_disassembly_address (struct gdbarch *gdbarch, CORE_ADDR pc, int from) if (pos >= max_lines) pos = 0; - next_addr = tui_disassemble (gdbarch, &asm_lines[pos], - last_addr, 1); + next_addr = tui_disassemble (gdbarch, asm_lines, + last_addr, pos, 1); /* If there are some problems while disassembling exit. */ if (next_addr <= last_addr) @@ -152,11 +147,6 @@ tui_find_disassembly_address (struct gdbarch *gdbarch, CORE_ADDR pc, int from) pos = 0; new_low = asm_lines[pos].addr; } - for (i = 0; i < max_lines; i++) - { - xfree (asm_lines[i].addr_string); - xfree (asm_lines[i].insn); - } return new_low; } @@ -172,10 +162,8 @@ tui_disasm_window::set_contents (struct gdbarch *arch, CORE_ADDR cur_pc; struct tui_locator_window *locator = tui_locator_win_info_ptr (); int tab_len = tui_tab_width; - struct tui_asm_line *asm_lines; int insn_pos; int addr_size, insn_size; - char *line; gdb_assert (line_or_addr.loa == LOA_ADDRESS); CORE_ADDR pc = line_or_addr.u.addr; @@ -192,22 +180,21 @@ tui_disasm_window::set_contents (struct gdbarch *arch, line_width = width - TUI_EXECINFO_SIZE - 2; /* Get temporary table that will hold all strings (addr & insn). */ - asm_lines = XALLOCAVEC (struct tui_asm_line, max_lines); - memset (asm_lines, 0, sizeof (struct tui_asm_line) * max_lines); + std::vector<tui_asm_line> asm_lines (max_lines); - tui_disassemble (gdbarch, asm_lines, pc, max_lines); + tui_disassemble (gdbarch, asm_lines, pc, 0, max_lines); /* Determine maximum address- and instruction lengths. */ addr_size = 0; insn_size = 0; for (i = 0; i < max_lines; i++) { - size_t len = strlen (asm_lines[i].addr_string); + size_t len = asm_lines[i].addr_string.size (); if (len > addr_size) addr_size = len; - len = strlen (asm_lines[i].insn); + len = asm_lines[i].insn.size (); if (len > insn_size) insn_size = len; } @@ -215,23 +202,20 @@ tui_disasm_window::set_contents (struct gdbarch *arch, /* Align instructions to the same column. */ insn_pos = (1 + (addr_size / tab_len)) * tab_len; - /* Allocate memory to create each line. */ - line = (char*) alloca (insn_pos + insn_size + 1); - /* Now construct each line. */ content.resize (max_lines); for (i = 0; i < max_lines; i++) { - int cur_len; - tui_source_element *src = &content[i]; - strcpy (line, asm_lines[i].addr_string); - cur_len = strlen (line); - memset (line + cur_len, ' ', insn_pos - cur_len); - strcpy (line + insn_pos, asm_lines[i].insn); + + std::string line + = (asm_lines[i].addr_string + + n_spaces (insn_pos + - asm_lines[i].addr_string.size ()) + + asm_lines[i].insn); /* Now copy the line taking the offset into account. */ - if (strlen (line) > offset) + if (line.size() > offset) src->line.reset (xstrndup (&line[offset], line_width)); else src->line.reset (xstrdup ("")); @@ -239,9 +223,6 @@ tui_disasm_window::set_contents (struct gdbarch *arch, src->line_or_addr.loa = LOA_ADDRESS; src->line_or_addr.u.addr = asm_lines[i].addr; src->is_exec_point = asm_lines[i].addr == cur_pc; - - xfree (asm_lines[i].addr_string); - xfree (asm_lines[i].insn); } return TUI_SUCCESS; } |