+Mon Aug 10 22:27:19 1992 Fred Fish (fnf@cygnus.com)
+
+ * Makefile.in (VERSION): Bump to 4.6.3.
+ * dwarfread.c (scan_partial_symbols): Skip over DIE's within
+ function scopes when building partial symbol tables.
+ * objfiles.c (open_existing_mapped_file): Make it clear in
+ warning message that out of date mapped files are ignored.
+ * symtab.c (lookup_symtab_1, lookup_symbol): Print compilation
+ unit source file name in error message.
+
Sat Aug 8 23:12:22 1992 Fred Fish (fnf@cygnus.com)
* dwarfread.c (struct dieinfo): Add has_at_byte_size.
# All the includes used for CFLAGS and for lint.
# -I. for config files.
# -I${srcdir} possibly for regex.h also.
-INCLUDE_CFLAGS = -I. -I${srcdir} -I$(INCLUDE_DIR) -I$(READLINE_DIR)
+INCLUDE_CFLAGS = -I. -I${srcdir} -I$(INCLUDE_DIR)
# M{H,T}_CFLAGS, if defined, has host- and target-dependent CFLAGS
# from the config/ directory.
ADD_FILES = ${REGEX} ${ALLOCA} ${XM_ADD_FILES} ${TM_ADD_FILES}
ADD_DEPS = ${REGEX1} ${ALLOCA1} ${XM_ADD_FILES} ${TM_ADD_FILES}
-VERSION = 4.6.1
+VERSION = 4.6.3
DIST=gdb
LINT=/usr/5bin/lint
remote.c source.c stack.c symmisc.c symtab.c symfile.c \
utils.c valarith.c valops.c valprint.c values.c c-exp.y m2-exp.y \
${DEMANGLER}.c mem-break.c target.c inftarg.c \
- dbxread.c coffread.c elfread.c dwarfread.c xcoffread.c \
+ dbxread.c coffread.c elfread.c dwarfread.c xcoffread.c stabsread.c \
ieee-float.c language.c parse.c buildsym.c objfiles.c \
minsyms.c mipsread.c maint.c
copying.o $(DEPFILES) ${DEMANGLER}.o mem-break.o target.o \
inftarg.o ieee-float.o putenv.o parse.o language.o $(YYOBJ) \
buildsym.o objfiles.o minsyms.o maint.o demangle.o \
- dbxread.o coffread.o elfread.o dwarfread.o xcoffread.o mipsread.o
+ dbxread.o coffread.o elfread.o dwarfread.o xcoffread.o mipsread.o \
+ stabsread.o
RAPP_OBS = rgdb.o rudp.o rserial.o serial.o udp.o $(XDEPFILES)
< y.tab.c > m2-exp.tab.c
-rm y.tab.c
+
+main.o: ${srcdir}/main.c
+ ${CC} -c ${INTERNAL_CFLAGS} -I${READLINE_DIR} $<
+
# The symbol-file readers have dependencies on BFD header files.
dbxread.o: ${srcdir}/dbxread.c
${CC} -c ${INTERNAL_CFLAGS} -I$(BFD_DIR) ${srcdir}/dbxread.c
dwarfread.o: ${srcdir}/dwarfread.c
${CC} -c ${INTERNAL_CFLAGS} -I$(BFD_DIR) ${srcdir}/dwarfread.c
+stabsread.o: ${srcdir}/stabsread.c
+ ${CC} -c ${INTERNAL_CFLAGS} -I$(BFD_DIR) ${srcdir}/stabsread.c
+
xcoffread.o: ${srcdir}/xcoffread.c
${CC} -c ${INTERNAL_CFLAGS} -I$(BFD_DIR) ${srcdir}/xcoffread.c
Process the DIE's within a single compilation unit, looking for
interesting DIE's that contribute to the partial symbol table entry
- for this compilation unit. Since we cannot follow any sibling
- chains without reading the complete DIE info for every DIE,
- it is probably faster to just sequentially check each one to
- see if it is one of the types we are interested in, and if so,
- then extract all the attributes info and generate a partial
- symbol table entry.
+ for this compilation unit.
NOTES
+ There are some DIE's that may appear both at file scope and within
+ the scope of a function. We are only interested in the ones at file
+ scope, and the only way to tell them apart is to keep track of the
+ scope. For example, consider the test case:
+
+ static int i;
+ main () { int j; }
+
+ for which the relevant DWARF segment has the structure:
+
+ 0x51:
+ 0x23 global subrtn sibling 0x9b
+ name main
+ fund_type FT_integer
+ low_pc 0x800004cc
+ high_pc 0x800004d4
+
+ 0x74:
+ 0x23 local var sibling 0x97
+ name j
+ fund_type FT_integer
+ location OP_BASEREG 0xe
+ OP_CONST 0xfffffffc
+ OP_ADD
+ 0x97:
+ 0x4
+
+ 0x9b:
+ 0x1d local var sibling 0xb8
+ name i
+ fund_type FT_integer
+ location OP_ADDR 0x800025dc
+
+ 0xb8:
+ 0x4
+
+ We want to include the symbol 'i' in the partial symbol table, but
+ not the symbol 'j'. In essence, we want to skip all the dies within
+ the scope of a TAG_global_subroutine DIE.
+
Don't attempt to add anonymous structures or unions since they have
no name. Anonymous enumerations however are processed, because we
want to extract their member names (the check for a tag name is
struct objfile *objfile;
{
char *nextdie;
+ char *temp;
struct dieinfo di;
while (thisdie < enddie)
{
case TAG_global_subroutine:
case TAG_subroutine:
+ completedieinfo (&di, objfile);
+ if (di.at_name && (di.has_at_low_pc || di.at_location))
+ {
+ add_partial_symbol (&di, objfile);
+ /* If there is a sibling attribute, adjust the nextdie
+ pointer to skip the entire scope of the subroutine.
+ Apply some sanity checking to make sure we don't
+ overrun or underrun the range of remaining DIE's */
+ if (di.at_sibling != 0)
+ {
+ temp = dbbase + di.at_sibling - dbroff;
+ if ((temp < thisdie) || (temp >= enddie))
+ {
+ dwarfwarn ("reference to DIE (0x%x) outside compilation unit", di.at_sibling);
+ }
+ else
+ {
+ nextdie = temp;
+ }
+ }
+ }
+ break;
case TAG_global_variable:
case TAG_local_variable:
completedieinfo (&di, objfile);
{
if (!mapped)
{
- warning ("mapped symbol file `%s' is out of date", symsfilename);
+ warning ("mapped symbol file `%s' is out of date, ignored it",
+ symsfilename);
}
}
else if ((fd = open (symsfilename, O_RDWR)) < 0)
projects / binutils-gdb.git / commitdiff