1 files changed, 280 insertions, 0 deletions
diff --git a/rtemstoolkit/elftoolchain/libdwarf/libdwarf_sections.c b/rtemstoolkit/elftoolchain/libdwarf/libdwarf_sections.c
new file mode 100644
index 0000000..24d5db8
--- /dev/null
+++ b/rtemstoolkit/elftoolchain/libdwarf/libdwarf_sections.c
@@ -0,0 +1,280 @@
+/*-
+ * Copyright (c) 2010 Kai Wang
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "_libdwarf.h"
+
+ELFTC_VCSID("$Id: libdwarf_sections.c 3041 2014-05-18 15:11:03Z kaiwang27 $");
+
+#define	_SECTION_INIT_SIZE	128
+
+int
+_dwarf_section_init(Dwarf_P_Debug dbg, Dwarf_P_Section *dsp, const char *name,
+    int pseudo, Dwarf_Error *error)
+{
+	Dwarf_P_Section ds;
+
+	assert(dbg != NULL && dsp != NULL && name != NULL);
+
+	if ((ds = calloc(1, sizeof(struct _Dwarf_P_Section))) == NULL) {
+		DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
+		return (DW_DLE_MEMORY);
+	}
+
+	if ((ds->ds_name = strdup(name)) == NULL) {
+		free(ds);
+		DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
+		return (DW_DLE_MEMORY);
+	}
+
+	if (!pseudo) {
+		ds->ds_cap = _SECTION_INIT_SIZE;
+		if ((ds->ds_data = malloc((size_t) ds->ds_cap)) == NULL) {
+			free(ds->ds_name);
+			free(ds);
+			DWARF_SET_ERROR(dbg, error, DW_DLE_MEMORY);
+			return (DW_DLE_MEMORY);
+		}
+		STAILQ_INSERT_TAIL(&dbg->dbgp_seclist, ds, ds_next);
+		dbg->dbgp_seccnt++;
+	}
+
+	*dsp = ds;
+
+	return (DW_DLE_NONE);
+}
+
+void
+_dwarf_section_free(Dwarf_P_Debug dbg, Dwarf_P_Section *dsp)
+{
+	Dwarf_P_Section ds, tds;
+
+	assert(dbg != NULL && dsp != NULL);
+
+	if (*dsp == NULL)
+		return;
+
+	STAILQ_FOREACH_SAFE(ds, &dbg->dbgp_seclist, ds_next, tds) {
+		if (ds == *dsp) {
+			STAILQ_REMOVE(&dbg->dbgp_seclist, ds, _Dwarf_P_Section,
+			    ds_next);
+			dbg->dbgp_seccnt--;
+			break;
+		}
+	}
+	ds = *dsp;
+	if (ds->ds_name)
+		free(ds->ds_name);
+	if (ds->ds_data)
+		free(ds->ds_data);
+	free(ds);
+	*dsp = NULL;
+}
+
+int
+_dwarf_pro_callback(Dwarf_P_Debug dbg, char *name, int size,
+    Dwarf_Unsigned type, Dwarf_Unsigned flags, Dwarf_Unsigned link,
+    Dwarf_Unsigned info, Dwarf_Unsigned *symndx, int *error)
+{
+	int e, ret, isymndx;
+
+	assert(dbg != NULL && name != NULL && symndx != NULL);
+
+	if (dbg->dbgp_func_b)
+		ret = dbg->dbgp_func_b(name, size, type, flags, link, info,
+		    symndx, &e);
+	else {
+		ret = dbg->dbgp_func(name, size, type, flags, link, info,
+		    &isymndx, &e);
+		*symndx = isymndx;
+	}
+	if (ret < 0) {
+		if (error)
+			*error = e;
+	}
+
+	return (ret);
+}
+
+int
+_dwarf_section_callback(Dwarf_P_Debug dbg, Dwarf_P_Section ds,
+    Dwarf_Unsigned type, Dwarf_Unsigned flags, Dwarf_Unsigned link,
+    Dwarf_Unsigned info, Dwarf_Error *error)
+{
+	int ret, ndx;
+
+	ndx = _dwarf_pro_callback(dbg, ds->ds_name, (int) ds->ds_size,
+	    type, flags, link, info, &ds->ds_symndx, NULL);
+	if (ndx < 0) {
+		ret = DW_DLE_ELF_SECT_ERR;
+		DWARF_SET_ERROR(dbg, error, ret);
+		return (ret);
+	}
+	ds->ds_ndx = ndx;
+
+	return (DW_DLE_NONE);
+}
+
+int
+_dwarf_generate_sections(Dwarf_P_Debug dbg, Dwarf_Error *error)
+{
+	int ret;
+
+	/* Produce .debug_info section. */
+	if ((ret = _dwarf_info_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_abbrev section. */
+	if ((ret = _dwarf_abbrev_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_line section. */
+	if ((ret = _dwarf_lineno_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_frame section. */
+	if ((ret = _dwarf_frame_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_aranges section. */
+	if ((ret = _dwarf_arange_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_macinfo section. */
+	if ((ret = _dwarf_macinfo_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_pubnames section. */
+	if ((ret = _dwarf_nametbl_gen(dbg, ".debug_pubnames", dbg->dbgp_pubs,
+	    error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_weaknames section. */
+	if ((ret = _dwarf_nametbl_gen(dbg, ".debug_weaknames", dbg->dbgp_weaks,
+	    error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_funcnames section. */
+	if ((ret = _dwarf_nametbl_gen(dbg, ".debug_funcnames", dbg->dbgp_funcs,
+	    error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_typenames section. */
+	if ((ret = _dwarf_nametbl_gen(dbg, ".debug_typenames", dbg->dbgp_types,
+	    error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_varnames section. */
+	if ((ret = _dwarf_nametbl_gen(dbg, ".debug_varnames", dbg->dbgp_vars,
+	    error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Produce .debug_str section. */
+	if ((ret = _dwarf_strtab_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Finally, update and generate all relocation sections. */
+	if ((ret = _dwarf_reloc_gen(dbg, error)) != DW_DLE_NONE)
+		return (ret);
+
+	/* Set section/relocation iterator to the first element. */
+	dbg->dbgp_secpos = STAILQ_FIRST(&dbg->dbgp_seclist);
+	dbg->dbgp_drspos = STAILQ_FIRST(&dbg->dbgp_drslist);
+	
+	return (DW_DLE_NONE);
+}
+
+Dwarf_Section *
+_dwarf_find_section(Dwarf_Debug dbg, const char *name)
+{
+	Dwarf_Section *ds;
+	Dwarf_Half i;
+
+	assert(dbg != NULL && name != NULL);
+
+	for (i = 0; i < dbg->dbg_seccnt; i++) {
+		ds = &dbg->dbg_section[i];
+		if (ds->ds_name != NULL && !strcmp(ds->ds_name, name))
+			return (ds);
+	}
+
+	return (NULL);
+}
+
+Dwarf_Section *
+_dwarf_find_next_types_section(Dwarf_Debug dbg, Dwarf_Section *ds)
+{
+
+	assert(dbg != NULL);
+
+	if (ds == NULL)
+		return (_dwarf_find_section(dbg, ".debug_types"));
+
+	assert(ds->ds_name != NULL);
+
+	do {
+		ds++;
+		if (ds->ds_name != NULL &&
+		    !strcmp(ds->ds_name, ".debug_types"))
+			return (ds);
+	} while (ds->ds_name != NULL);
+
+	return (NULL);
+}
+
+Dwarf_P_Section
+_dwarf_pro_find_section(Dwarf_P_Debug dbg, const char *name)
+{
+	Dwarf_P_Section ds;
+
+	assert(dbg != NULL && name != NULL);
+
+	STAILQ_FOREACH(ds, &dbg->dbgp_seclist, ds_next) {
+		if (ds->ds_name != NULL && !strcmp(ds->ds_name ,name))
+			return (ds);
+	}
+
+	return (NULL);
+}
+
+void
+_dwarf_section_cleanup(Dwarf_P_Debug dbg)
+{
+	Dwarf_P_Section ds, tds;
+
+	assert(dbg != NULL && dbg->dbg_mode == DW_DLC_WRITE);
+
+	STAILQ_FOREACH_SAFE(ds, &dbg->dbgp_seclist, ds_next, tds) {
+		STAILQ_REMOVE(&dbg->dbgp_seclist, ds, _Dwarf_P_Section,
+		    ds_next);
+		if (ds->ds_name)
+			free(ds->ds_name);
+		if (ds->ds_data)
+			free(ds->ds_data);
+		free(ds);
+	}
+	dbg->dbgp_seccnt = 0;
+	dbg->dbgp_secpos = 0;
+}