static void process_entries (segT seg, struct line_entry *e) { unsigned filenum = 1; unsigned line = 1; unsigned column = 0; unsigned isa = 0; unsigned flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_IS_STMT : 0; fragS *last_frag = NULL, *frag; addressT last_frag_ofs = 0, frag_ofs; symbolS *last_lab = NULL, *lab; struct line_entry *next; do { int line_delta; if (filenum != e->loc.filenum) { filenum = e->loc.filenum; out_opcode (DW_LNS_set_file); out_uleb128 (filenum); } if (column != e->loc.column) { column = e->loc.column; out_opcode (DW_LNS_set_column); out_uleb128 (column); } if (e->loc.discriminator != 0) { out_opcode (DW_LNS_extended_op); out_leb128 (1 + sizeof_leb128 (e->loc.discriminator, 0)); out_opcode (DW_LNE_set_discriminator); out_uleb128 (e->loc.discriminator); } if (isa != e->loc.isa) { isa = e->loc.isa; out_opcode (DW_LNS_set_isa); out_uleb128 (isa); } if ((e->loc.flags ^ flags) & DWARF2_FLAG_IS_STMT) { flags = e->loc.flags; out_opcode (DW_LNS_negate_stmt); } if (e->loc.flags & DWARF2_FLAG_BASIC_BLOCK) out_opcode (DW_LNS_set_basic_block); if (e->loc.flags & DWARF2_FLAG_PROLOGUE_END) out_opcode (DW_LNS_set_prologue_end); if (e->loc.flags & DWARF2_FLAG_EPILOGUE_BEGIN) out_opcode (DW_LNS_set_epilogue_begin); /* Don't try to optimize away redundant entries; gdb wants two entries for a function where the code starts on the same line as the {, and there's no way to identify that case here. Trust gcc to optimize appropriately. */ line_delta = e->loc.line - line; lab = e->label; frag = symbol_get_frag (lab); frag_ofs = S_GET_VALUE (lab); if (last_frag == NULL) { out_set_addr (lab); out_inc_line_addr (line_delta, 0); } else if (frag == last_frag && ! DWARF2_USE_FIXED_ADVANCE_PC) out_inc_line_addr (line_delta, frag_ofs - last_frag_ofs); else relax_inc_line_addr (line_delta, lab, last_lab); line = e->loc.line; last_lab = lab; last_frag = frag; last_frag_ofs = frag_ofs; next = e->next; free (e); e = next; } while (e); /* Emit a DW_LNE_end_sequence for the end of the section. */ frag = last_frag_for_seg (seg); frag_ofs = get_frag_fix (frag, seg); if (frag == last_frag && ! DWARF2_USE_FIXED_ADVANCE_PC) out_inc_line_addr (INT_MAX, frag_ofs - last_frag_ofs); else { lab = symbol_temp_new (seg, frag_ofs, frag); relax_inc_line_addr (INT_MAX, lab, last_lab); } }
static void process_entries (segT seg, struct line_entry *e) { unsigned filenum = 1; unsigned line = 1; unsigned column = 0; unsigned flags = DWARF2_LINE_DEFAULT_IS_STMT ? DWARF2_FLAG_BEGIN_STMT : 0; fragS *frag = NULL; fragS *last_frag; addressT frag_ofs = 0; addressT last_frag_ofs; struct line_entry *next; while (e) { int changed = 0; if (filenum != e->loc.filenum) { filenum = e->loc.filenum; out_opcode (DW_LNS_set_file); out_uleb128 (filenum); changed = 1; } if (column != e->loc.column) { column = e->loc.column; out_opcode (DW_LNS_set_column); out_uleb128 (column); changed = 1; } if ((e->loc.flags ^ flags) & DWARF2_FLAG_BEGIN_STMT) { flags = e->loc.flags; out_opcode (DW_LNS_negate_stmt); changed = 1; } if (e->loc.flags & DWARF2_FLAG_BEGIN_BLOCK) { out_opcode (DW_LNS_set_basic_block); changed = 1; } /* Don't try to optimize away redundant entries; gdb wants two entries for a function where the code starts on the same line as the {, and there's no way to identify that case here. Trust gcc to optimize appropriately. */ if (1 /* line != e->loc.line || changed */) { int line_delta = e->loc.line - line; if (frag == NULL) { out_set_addr (seg, e->frag, e->frag_ofs); out_inc_line_addr (line_delta, 0); } else if (frag == e->frag) out_inc_line_addr (line_delta, e->frag_ofs - frag_ofs); else relax_inc_line_addr (line_delta, seg, e->frag, e->frag_ofs, frag, frag_ofs); frag = e->frag; frag_ofs = e->frag_ofs; line = e->loc.line; } else if (frag == NULL) { out_set_addr (seg, e->frag, e->frag_ofs); frag = e->frag; frag_ofs = e->frag_ofs; } next = e->next; free (e); e = next; } /* Emit a DW_LNE_end_sequence for the end of the section. */ last_frag = last_frag_for_seg (seg); last_frag_ofs = get_frag_fix (last_frag); if (frag == last_frag) out_inc_line_addr (INT_MAX, last_frag_ofs - frag_ofs); else relax_inc_line_addr (INT_MAX, seg, last_frag, last_frag_ofs, frag, frag_ofs); }