mirror of
https://github.com/netwide-assembler/nasm.git
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fd52c277dd
This only matters for ELF64/ELFx32, at least for now. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
283 lines
7.7 KiB
C
283 lines
7.7 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2013 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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/*
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* outdbg.c output routines for the Netwide Assembler to produce
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* a debugging trace
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*/
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#include "compiler.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <inttypes.h>
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#include "nasm.h"
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#include "nasmlib.h"
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#include "output/outform.h"
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#ifdef OF_DBG
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struct Section {
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struct Section *next;
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int32_t number;
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char *name;
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} *dbgsect;
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struct ofmt of_dbg;
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static void dbg_init(void)
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{
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dbgsect = NULL;
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fprintf(ofile, "NASM Output format debug dump\n");
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}
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static void dbg_cleanup(int debuginfo)
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{
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(void)debuginfo;
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of_dbg.current_dfmt->cleanup();
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while (dbgsect) {
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struct Section *tmp = dbgsect;
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dbgsect = dbgsect->next;
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nasm_free(tmp->name);
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nasm_free(tmp);
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}
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}
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static int32_t dbg_section_names(char *name, int pass, int *bits)
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{
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int seg;
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/*
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* We must have an initial default: let's make it 16.
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*/
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if (!name)
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*bits = 16;
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if (!name)
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fprintf(ofile, "section_name on init: returning %d\n",
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seg = seg_alloc());
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else {
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int n = strcspn(name, " \t");
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char *sname = nasm_strndup(name, n);
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struct Section *s;
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seg = NO_SEG;
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for (s = dbgsect; s; s = s->next)
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if (!strcmp(s->name, sname))
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seg = s->number;
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if (seg == NO_SEG) {
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s = nasm_malloc(sizeof(*s));
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s->name = sname;
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s->number = seg = seg_alloc();
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s->next = dbgsect;
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dbgsect = s;
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fprintf(ofile, "section_name %s (pass %d): returning %d\n",
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name, pass, seg);
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}
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}
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return seg;
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}
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static void dbg_deflabel(char *name, int32_t segment, int64_t offset,
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int is_global, char *special)
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{
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fprintf(ofile, "deflabel %s := %08"PRIx32":%016"PRIx64" %s (%d)%s%s\n",
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name, segment, offset,
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is_global == 2 ? "common" : is_global ? "global" : "local",
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is_global, special ? ": " : "", special);
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}
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static void dbg_out(int32_t segto, const void *data,
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enum out_type type, uint64_t size,
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int32_t segment, int32_t wrt)
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{
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int32_t ldata;
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int id;
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if (type == OUT_ADDRESS)
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fprintf(ofile, "out to %"PRIx32", len = %d: ", segto, (int)size);
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else
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fprintf(ofile, "out to %"PRIx32", len = %"PRIu64": ", segto, size);
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switch (type) {
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case OUT_RESERVE:
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fprintf(ofile, "reserved.\n");
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break;
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case OUT_RAWDATA:
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fprintf(ofile, "raw data = ");
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while (size--) {
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id = *(uint8_t *)data;
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data = (char *)data + 1;
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fprintf(ofile, "%02x ", id);
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}
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fprintf(ofile, "\n");
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break;
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case OUT_ADDRESS:
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ldata = *(int64_t *)data;
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fprintf(ofile, "addr %08"PRIx32" (seg %08"PRIx32", wrt %08"PRIx32")\n",
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ldata, segment, wrt);
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break;
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case OUT_REL1ADR:
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fprintf(ofile, "rel1adr %02"PRIx8" (seg %08"PRIx32")\n",
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(uint8_t)*(int64_t *)data, segment);
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break;
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case OUT_REL2ADR:
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fprintf(ofile, "rel2adr %04"PRIx16" (seg %08"PRIx32")\n",
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(uint16_t)*(int64_t *)data, segment);
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break;
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case OUT_REL4ADR:
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fprintf(ofile, "rel4adr %08"PRIx32" (seg %08"PRIx32")\n",
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(uint32_t)*(int64_t *)data,
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segment);
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break;
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case OUT_REL8ADR:
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fprintf(ofile, "rel8adr %016"PRIx64" (seg %08"PRIx32")\n",
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(uint64_t)*(int64_t *)data, segment);
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break;
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default:
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fprintf(ofile, "unknown\n");
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break;
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}
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}
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static void dbg_sectalign(int32_t seg, unsigned int value)
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{
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fprintf(ofile, "set alignment (%d) for segment (%u)\n",
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seg, value);
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}
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static int32_t dbg_segbase(int32_t segment)
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{
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return segment;
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}
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static int dbg_directive(enum directives directive, char *value, int pass)
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{
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fprintf(ofile, "directive [%s] value [%s] (pass %d)\n",
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directives[directive], value, pass);
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return 1;
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}
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static void dbg_filename(char *inname, char *outname)
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{
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standard_extension(inname, outname, ".dbg");
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}
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static int dbg_set_info(enum geninfo type, char **val)
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{
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(void)type;
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(void)val;
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return 0;
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}
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char *types[] = {
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"unknown", "label", "byte", "word", "dword", "float", "qword", "tbyte"
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};
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void dbgdbg_init(void)
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{
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fprintf(ofile, " With debug info\n");
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}
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static void dbgdbg_cleanup(void)
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{
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}
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static void dbgdbg_linnum(const char *lnfname, int32_t lineno, int32_t segto)
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{
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fprintf(ofile, "dbglinenum %s(%"PRId32") := %08"PRIx32"\n",
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lnfname, lineno, segto);
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}
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static void dbgdbg_deflabel(char *name, int32_t segment,
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int64_t offset, int is_global, char *special)
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{
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fprintf(ofile, "dbglabel %s := %08"PRIx32":%016"PRIx64" %s (%d)%s%s\n",
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name,
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segment, offset,
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is_global == 2 ? "common" : is_global ? "global" : "local",
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is_global, special ? ": " : "", special);
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}
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static void dbgdbg_define(const char *type, const char *params)
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{
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fprintf(ofile, "dbgdirective [%s] value [%s]\n", type, params);
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}
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static void dbgdbg_output(int output_type, void *param)
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{
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(void)output_type;
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(void)param;
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}
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static void dbgdbg_typevalue(int32_t type)
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{
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fprintf(ofile, "new type: %s(%"PRIX32")\n",
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types[TYM_TYPE(type) >> 3], TYM_ELEMENTS(type));
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}
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static struct dfmt debug_debug_form = {
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"Trace of all info passed to debug stage",
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"debug",
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dbgdbg_init,
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dbgdbg_linnum,
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dbgdbg_deflabel,
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dbgdbg_define,
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dbgdbg_typevalue,
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dbgdbg_output,
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dbgdbg_cleanup,
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};
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static struct dfmt *debug_debug_arr[3] = {
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&debug_debug_form,
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&null_debug_form,
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NULL
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};
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struct ofmt of_dbg = {
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"Trace of all info passed to output stage",
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"dbg",
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OFMT_TEXT,
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debug_debug_arr,
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&debug_debug_form,
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NULL,
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dbg_init,
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dbg_set_info,
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dbg_out,
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dbg_deflabel,
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dbg_section_names,
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dbg_sectalign,
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dbg_segbase,
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dbg_directive,
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dbg_filename,
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dbg_cleanup
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};
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#endif /* OF_DBG */
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