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Andrew Beers' changes for Modula-2 support.

This commit is contained in:
John Gilmore 1991-09-19 11:48:49 +00:00
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Wed Sep 18 15:55:51 1991 John Gilmore (gnu at cygnus.com)
Merge multiple-language support, and partial Modula-2 support,
from Andrew Beers <beers@cs.buffalo.edu>.
* i387-tdep.c: New file, consolidates most 80387 support,
and eliminates host dependency on double<->extended conversions.
* i386-xdep.c, symm-xdep.c: Remove most 387 support.
* xconfig/i386{sco,v,v-g,v32,v32-g}: Now need i387-tdep.o.
* symfile.c (allocate_symtab): New fn, consolidates the work
of allocating and initializing a new struct symtab. Set the
language of the symtab based on its filename extension.
* symfile.h: Declare it.
* mipsread.c (new_symtab): Use it. Minor formatting changes.
* dbxread.c (end_symtab): Use it.
* mipsread.c (parse_symbol, case stParam and stProc): Add #if 0'd
code for saving types of parameters with each function definition.
* dbxread.c (define_symbol, function and parameter cases): Ditto.
(read_dbx_symtab, case N_DEFD): Ignore.
(read_enum_type): Recognize FALSE/TRUE enum as Modula-2 BOOLEAN.
(read_range_type): Rename MAX_OF_TYPE to MAX_OF_C_TYPE, etc.
#if 0 out its uses, though, since they set a dead value.
* coffread.c (end_symtab): Use allocate_symtab.
(process_coff_symbol): #if 0'd for functions and params as above.
(read_enum_type): Recognize Modula-2 BOOLEAN.
* symtab.c (add_param_to_type): #if 0'd function to add a
parameter type to a function type's field list.
* defs.h (local_hex_format, local_hex_string, *_custom): Add.
* i386-xdep.c, pyr-tdep.c, pyr-xdep.c, remote-vx.c, solib.c,
source.c, symfile.c, dbxread.c, breakpoint.c, core.c, exec.c,
i387-tdep.c, infcmd.c, mips-tdep.c, stack.c, printcmd.c: Output
hex with local_hex_string for Modula-2 support.
* breakpoint.c (breakpoint_cond_eval): Use new value_true to test
breakpoint condition language-independently.
* parse.c: New file with the common code remains of expread.y.
* parser-defs.h: New file with common declarations from expread.y.
* c-exp.y: New file with the C parser from expread.y, and other
language-specific information.
* m2-exp.y: New file with the Modula-2 parser and etc.
* expread.y, expread.tab.c: Remove.
* breakpoint.c, eval.c, printcmd.c, expression.h: Use
parse_expression and parse_exp_1 rather than parse_c_expression
and parse_c_1.
* symtab.h (enum languages): Move to defs.h.
(enum type_code): Add TYPE_CODE_CHAR and TYPE_CODE_BOOL.
Declare Modula-2 builtin types.
Add MAX_OF_TYPE and MIN_OF_TYPE macros.
* symtab.c (_initialize_symtab): Remove builtin type
definition and initialization to *-exp.y.
(lookup_primitive_typename): Use language-dependent vector.
(lookup_typename): Fix bug, make it work if primitive typename.
(lookup_unsigned_typename): Call above.
(create_array_type): Set up range type for array index.
(list_symbols): Call typedef_print to print typedefs.
(Currently #ifndef FIXME'd out awaiting integration.)
* values.c (unpack_long, value_from_longest): Handle
TYPE_CODE_BOOL and TYPE_CODE_CHAR.
* expression.h (enum exp_opcode): Add Modula-2 specific opcodes.
* expprint.c: Look up expression opcodes in language-specific
table, based on expression's language. Handle some Modula-2
specific opcodes.
* stack.c (frame_info): Print language of stack frame.
(select_frame): Also select language, if in auto-mode.
(get_frame_language): New subroutine.
* main.c (execute_command): Warn as language changes automatically.
* printcmd.c (ptype_command): Parse types using the language
parser, both for language-independence, and so that scopes can
be specified.
* language.h, language.c: New files for language-specific macros,
declarations, and definitions.
Misc fixes:
* main.c (main): If error() is called during early
initialization, print its message and then exit(1) from GDB.
* valprint.c (type_print_base): Avoid printing garbage for ints
of unusual sizes.
(_initialize_valprint): Warn about host/target size assumption;
improve long long support slightly.
* convex-tdep.c (comm_registers_info): Avoid parsing decimal and
hex -- let parse_and_eval_address do it.
* doc/gdbint.texinfo (Languages): Doc how to add a language.
* Makefile.in: Cope with new files and removed files.
Tue Sep 17 08:37:41 1991 John Gilmore (gnu at cygint.cygnus.com)
Add Andrew Beers' changes for Modula-2 support. His ChangeLog
entries are enclosed herein:
Mon Jun 3 17:05:45 EDT 1991
m2-exp.y Created. Tested outside of GDB for a few days. Proper
operators were added, C specific operators and tokens
removed. yylex() revamped to some extent. Still things
missing from the grammar, such as sets.
Tested for two weeks in GDB v3.5.
Tue Jun 11 17:23:48 EDT 1991
m2-exp.y Added boolean constants TRUE and FALSE to the grammar
so they are built-in. Sort of a hack.
Fri Jun 14 12:53:51 EDT 1991
m2-exp.y Added range checking for numeric constants. Any numeric
constant is assumed to be of builtin type INTEGER unless:
(1) it is octal or hexadecimal, in which case it is a
CARDINAL; (2) it is too big to fit into an INTEGER, in
which case it is a CARDINAL.
eval.c Added simple range checking for +, -, and * on integers.
Doesn't work very well for *, since 6 * 1,000,000,000 =
1,705,032,704, which fails the simple test of result >=
first_operand, no matter in what order the operands are.
Tue Jun 18 14:11:30 EDT 1991
Broke the parser into parts, one containing the C grammar and the other
containing code to be shared by all of the grammars.
The following files no longer exist:
expread.y
expread.tab.c
The following files were added:
c-exp.y (The C grammar)
m2-exp.y (The Modula-2 grammar)
parser-code.c (Code that is shared by the above grammar)
parser-code.h
parser-defs.h
Makefile.dist Changed to reflect the above dependencies. NOTE: It is
now necessary to use the Bison compiler compiler, since it
will generate function/variable prefixes other than yy.
Tue Jun 18 16:47:49 EDT 1991
symtab.[ch] Added the external variable working_lang, than holds the
value of the current working language.
Added the ennumerated type language_mode, with the values
language_auto and language_manual, the former meaning that
GDB sets working_lang as needed, and the latter meaning
that the value of working_lang is totally under user
control.
symtab.[ch] Added the Modula-2 pervasive types INTEGER, CARDINAL,
REAL, BOOLEAN and CHAR. Also added the type codes
TYPE_CODE_BOOL and TYPE_CODE_CHAR.
utils.c Added set_language_command and show_language_command to
implement the GDB support commands "set language" and
"show language".
expression.h A number of identifiers were added to the type exp_opcode
to facilitate Modula-2 builtin functions, integer
division, and array indexing.
Wed Jun 19 13:25:58 EDT 1991
language.h Added the macro STRICT_TYPE, which evaluates to non-zero
if the language specified by working_lang requires the use
of strict typing of expressions. Eventually, even this
will be able to be changed by the user.
Added the macro RANGE_CHECK, which evaluates to non-zero
if the language specified by working_lang requires the
checking of a value against the domain of its type.
Eventually, even this will be able to be changed by the
user.
language.[ch] Predicates involving types (simple_type, ordered_type,
same_type, integral_type, numeric_type, character_type,
boolean_type, float_type) are added. These predicates are
based on the current value of working_lang, and are handy
in type-checking.
Wed Jun 19 15:39:34 EDT 1991
eval.c Added the function type_array_rank which computes the rank
of an array type.
valarith.c Added the funtion value_bool, which when given a integer
value.h value (ie. struct value *) as an argument, it returns a
boolean value (ie. struct value *) true if that integer
is non-zero, and a boolean value false otherwise.
valprint.c Added cases for TYPE_CODE_BOOL, so Modula-2 BOOLEAN values
will print out properly.
Wed Jun 19 16:36:34 EDT 1991
valops.c Added the function value_capitalize, which returns it
value.h argument capitalized if its argument is a lowercase
letter, or the argument unchanged if its argument is not a
letter.
valarith.c Added the function range_check_p, which returns non-zero
value.h if its value argument is between the integral bounds upper
and lower.
Added the function range_check_enum_p, which makes sure
that its value argument is a valid member of the domain of
its type argument.
Added the function range_check_range_p, which makes sure
its value argument lies between the upper and lower bounds
of its type argument, which must be a ranged type.
Added the function check_array_index, which range and type
checks an index of an array.
Added the function value_multi_subscript, which computes
array[idx1,idx2...idxN], given a value array and an array
of values representing indicies.
values.c Changed value_from_long to work with TYPE_CODE_CHAR and
unpack_long to work with TYPE_CODE_BOOL and
TYPE_CODE_CHAR.
Wed Jun 19 18:04:08 EDT 1991
symtab.c Stored pervasive types in a structure and make
lookup_pervasive_type() a lookup function that was based
on working_lang. If lookup_pervasive_type() returned
non-zero, then that value was returned (a fix, since
before it simply wouldn't return the pervasive type.)
language.h Added the macro CAST_IS_CONVERSION, which evaluates to
non-zero if the language specified by working_lang means
"conversion" when it says "cast".
valops.c Added the function value_real_cast(), which performs a
value.h *cast*, not a *conversion*, which is what value_cast()
does when it can. In particular,
value_cast(<float_type>,4) = 4.0, while
value_real_cast(<float_type>,4) = some mess.
eval.c Modula-2 builtin functions implemented: ABS, CAP, CHR,
parser-code.c FLOAT, HIGH, MAX, MIN, ODD, ORD, TRUNC, and VAL.
expression.h Added macros MAX_OF_TYPE and MIN_OF_TYPE to work with MAX
and MIN on integral types. *NOTE*: These are currently
hardcoded to work only if there are 8 bits per storage
unit. FIXME.
eval.c Made logical functions call value_bool to return a
properly typed boolean value, based on working_lang.
Thu Jun 20 11:55:27 EDT 1991
valprint.c Types now print out in a Modula-2 fashion. This works for
the cases when the type is printed out step-by-step, that
is, it doesn't work when the name of a structured type
(which includes the keyword "struct", etc.) is simply
displayed.
FIXME: Perhaps this is bad. Parts of it seem to kludgey,
since type specifications in C and Modula-2 are very
different. The C printing of a type is very recursive,
whereas in Modula-2 it is generally very simple. C has
type prefixes and suffixes, which have no real analogue in
Modula-2. Maybe type_print() should call a language
specific type printer. This is also advantageous if we
compile GDB to exclude some of the languages. We'll just
leave those functions out.
Thu Jun 20 16:57:10 EDT 1991
dbxread.c When reading the complete symbol table in (via
psymtab_to_symtab()), the number and types of function
arguments are added to a function type. define_symbol()
calls add_param_to_type() to accomplish this.
Assumption: when we come across a function definition
(N_FUN symbol with an 'f' or 'F' in the name), its
arguments will appear before another function definition.
When a function is found, a pointer to its type is placed
in the global in_function_type. Changes that
add_param_to_type() makes are to this global.
valprint.c The type of a function now includes (for Modula-2) the
types of its parameters.
eval.c Type checking and a check for the proper number of
arguments is now done for function calls. Not sure of the
impact this has on C++ member function yet.
Thu Jun 20 19:58:48 EDT 1991
valprint.c Rewrote the type printer. Broke it into two language
specific parts, adding the functions type_print_m2() and
type_print_m2_1().
An unfortunate consequence is this: if you debugging a C
program in Modula-2 mode (why?), info types does not work
well with regular expressions, since the types are printed
out in Modula-2 terminology, but stored in C terminology.
language.[ch] Added the functions new_type_last(), type_keyword(), and
type_sep() to aid in the printing of typedefs.
symtab.c Made the printing of typedefs as language independent as
possible through calls to new_type_last(), type_keyword(),
and type_sep().
Fri Jun 21 11:50:26 EDT 1991
dbxread.c Check all incoming ennumerated types. If it looks like
Modula-2's BOOLEAN type, then change the type_code of the
type to TYPE_CODE_BOOL so we can process it as a boolean
variable.
valprint.c Replaced some of the 0x%x with calls to sprintf and
hexformat() in val_print().
language.[ch] Added the function hex_to_string(), which converts its
integral argument to a hexadecimal number (format is
language based) and returns the result as a string.
Mon Jun 24 12:25:07 EDT 1991
valprint.c Some functions call type_print_1() directly, instead of
value.h using type_print(), so they can specify where (column) to
print things. Since type_print() takes care of language
dependence, that needs to be called first. Added a
parameter depth to type_print() (so it is now like
type_print_1). Changed type_print to type_print_at, and
made type_print a macro that passes a depth argument of
zero.
symmisc.c Changed all calls to type_print_1 to calls to
type_print_at.
Makefile.dist Made it possible to build GDB for a specific set of
depend languages. Do this by passing a definition for the macro
LANGS to make. LANGS should be a string containing a
space-separated list of language names (ie. LANGS="c m2").
The default is to build all languages. Note that grammar
files must follow the naming convention of <lang>-exp.y.
gdb.lang This holds the current value of the LANGS macro. It is
examined every time make is called, and is updated if
necessary.
eval.c Added #ifdef _LANG_<lang> to these files.
expread.c Still need to add them to dbxread.c and coffread.c.
main.c
source.c
symtab.c
utils.c
valarith.c
valprint.c
Mon Jun 24 16:33:11 EDT 1991
language.[ch] Added the functions hexformat_pre() and
hex_to_string_pre(), which take a prefix argument to
include in the format string. Thus, hexformat_pre("08") will
return "0x08x" (if the working language is language_c).
Made hexformat() and hex_to_string() calls to the above
with "" as the prefix argument.
am29k-pinsn.c, arm-pinsn.c, breakpoint.c, convex-tdep.c, exec.c, core.c,
dbxread.c, i386-pinsn.c, i386-stub.c, i386-xdep.c, i960-pinsn.c,
infcmd.c, inflow.c, m68k-pinsn.c, m68k-stub.c, m88k-pinsn.c,
mips-pinsn.c, mips-tdep.c, ns32k-pinsn.c, printcmd.c, pyr-pinsn.c,
pyr-tdep.c, pyr-xdep.c, remote-vx.c, remote.c, solib.c, source.c,
stack.c, sun386-xdep.c, symfile.c, symm-xdep.c, symmisc.c, tahoe-pinsn.c,
valprint.c, vax-pinsn.c
Changed all occurences of 0x%[0-9]*l*x in printf format strings to
calls to hexformat() and hex_to_string(). Format strings without
the leading "0x" were ignored.
depend Updated to take the above into account.
Tue Jun 25 15:27:18 EDT 1991
symtab.h Added the types range_mode_t, range_check_t, type_mode_t,
and type_check_t to keep track of the current state of
range and type checking.
main.c Added the variables range_mode, range_check, type_mode,
and type_check to record the current state of range and
type checking. Added initialization code to main().
language.h Changed the macros STRICT_TYPE and RANGE_CHECK to examine
the above variables.
Tue Jun 25 17:57:08 EDT 1991
dbxread.c process_one_symbol() updates the variable (enum language)
source_lang based on the extension of the filename
contained in the N_SO sybmol that started this symtab.
When end_symtab() is called, the value of source_lang is
put into the language field.
stack.c select_frame() sets working_lang (and possibly type_check
and range_check) to the language field of the symtab
associated with the frame that is selected if working_mode
is language_auto. If working_mode is language_manual, a
warning is printed and working_lang is not set.
language.c Added the function set_type_range(), which sets the value of
type_check and range_check (if their modes call for
automatic setting) based on the current value of
working_lang. A non-zero argument will cause the current
settings to be output.
Wed Jun 26 14:51:40 EDT 1991
eval.c Added range checks on assignment.
m2-exp.y Added the grammar for sets to the language. Currently,
these do not do anything except print an error message.
Wed Jun 26 17:01:04 EDT 1991
m2-exp.y Added the ability for parse_number() to parse negative
numbers. A global flag is set upon encountering a unary
minus. This was done to make, for example, 1 parse as a
CARDINAL, and not as an integer, per Wirth's examples in
Programming in Modula-2 ed.4.
valprint.c Added support for "set radix 2" by then setting
output_format to 't'.
eval.c Implemented range checking on subrange types. Added calls
to range_check_range_p for BINOP_ASSIGN and BINOP_VAL.
Implemented MIN and MAX for ennumerated types. The
minimum value of an ennumerated type is defined by Wirth
as the first identifier, and the maximum as the last.
m2-exp.y Made octal numbers ending with "B" be characters and those
ending with "C" be numbers, per Wirth's book. (p. 34)
Thu Jun 27 14:11:52 EDT 1991
stack.c select_frame() now only sets working_lang, it does not
notify the user. If working_mode is language_manual, then
a warning is issued once.
main.c At the end of each call to execute_command(), working_lang
is checked against the local static (enum language)
current. If they differ and working_mode is
language_auto, the new settings of language, type and
range checking are printed out.
stack.c Modified frame_info() to include the language of the
current frame in the output of "info frame".
language.[ch] Added the function language_str() which returns the name
of the current language.
Fri Jun 28 15:33:14 EDT 1991
m2-exp.y Added the built-in procedures INC, INCL, DEC, and DECL to
the language. INCL and DECL currently cause an error,
since sets are not implemented yet. INC and DEC are
implemented as PREINCREMENT/PREDECREMENT with one
argument, and as ASSIGN_MODIFY with two arguments.
eval.c Added type checking to the above cases.
value.h Added not_lval_constant to the lval_type ennumerated type.
not_lval_constant means that the value is a constant
value; that is 3 or 'a' or TRUE, not as in a constant
identifier. This is used to help coerce numbers such as 3
to either signed or unsigned numbers.
valops.c Added the function value_coerce_constants() which coerces
constant integers as following: if one is a constant and
the other is not, the constant's type is set to the type
of the other argument. If both are constants and one is
signed, the other is converted to a signed constant.
Sat Jun 29 17:26:29 EDT 1991
valarith.c Added a better range checker. It now checks range
(successfully) on integral operations [+-] (signed and
unsigned) for any C sized type. Still does not work well
for multiplication.)
int_in_size() returns an integer that is coerced to fit into
specified number of bytes.
Mon Jul 1 13:04:14 EDT 1991
language.[ch] Added the function binop_result_type(), which returns the
builtin (struct type *) type that would be the result of a
binop on the two values V1 and V2.
Wed Jul 3 19:22:53 EDT 1991
source.c Extended source_info() to include the source language in
the output from "info source".
Fri Jul 5 13:48:52 EDT 1991
utils.c Moved the support functions for the GDB set/show commands
dealing with language into language.c.
language.c Added the function language_info(), which displays info
about the current working language, type and range check
settings. Called via the GDB command "info language".
Added an initialization routine _initialize_language(),
that sets defaults for the language, type and range
variables and sets up the new GDB commands.
main.c Language setup moved to language.c.
depend Rebuilt.
Mon Jul 8 10:10:22 EDT 1991
valarith.c Debugged the range checker for arithmetic. Still does not
work for multiplication very well.
Mon Jul 8 12:40:37 EDT 1991
language.[ch] Added the function value_true() which returns non-zero if
its argument represents a boolean true value.
breakpoint.c Changed breakpoint_cond_eval() to call value_true() to
check the truth of an expression.
Thu Jul 11 12:51:34 EDT 1991
language.[ch] Added the predicate structured_type(), which returns
non-zero if the argument is a structured type.
Added the predicate pointer_type(), which returns non-zero
if the argument is a pointer type.
eval.c Added the ability to do addition and substraction on
pointers and integers. This case simply bypasses the
type checker.
Thu Jul 11 14:41:42 EDT 1991
include/stab.def
Added the symbol N_DEFD (0x4a) which is a definition
module dependency that is used by the GNU Modula-2
compiler and the linker. It is not important to GDB,
except that [dbx|coff|mips]read.c should ignore these
symbols.
Fri Jul 12 16:07:00 EDT 1991
valprint.c Changed the TYPE_LENGTH(type) >= 0 to TYPE_LENGTH(type) >
0 in val_print(). Also added statements to the else part
to coerce type (argument to val_print) to a pointer type
if it is an "array of unspecified length".
valops.c Added the function value_m2_string(), which returns a
(value) value which is a constant string, whose type is
(ARRAY [0..n] OF CHAR). The length field of the type
structure is set to zero, so it will be interpreted as an
"array of unspecified length".
stack.c Moved the language/frame mismatch check to
main.c:execute_command().
main.c The working language is recorded each time
execute_command() is executed. If working lang has
changed during its execution, then the new
language/type/range info is printed out for the user. If
the working language does not match the language of the
frame, a warning is issued.
Sat Jul 13 16:16:39 EDT 1991
eval.c Moved all the type-checking stuff for operators to
language.[ch] language.c. This is so we can keep language-specific
stuff (like for what type operators are defined) in
language.c.
language.[ch] Added the function binop_type_check(), which checks to see
if its two (value) arguments are type-compatible with its
opcode argument. The opcode should represent an operation
involving an operator. Also added the macro function
unop_type_check, which calls binop_type_check with a
NULL second argument.
expprint.c Added Modula-2 operators to the op_print_tab, so info
expression.h break works correctly. Also added "op_string", which
returns the string corresponding to the (enum exp_opcode)
opcode that is its argument.
Sat Jul 13 18:26:18 EDT 1991
coffread.c Added code to record the type of function arguments with
each paricular function. Code is very similar to that
added to dbxread.c.
dbxread.c Moved add_param_to_type() to symtab.c
symtab.[ch] Added function add_param_to_type() from dbxread.c
*** NOTE: The above additions have not been tested.
Mon Jul 15 12:50:47 EDT 1991
langauge.[ch] Added the functions type_error and range_error, which work
like error() except if the type/range mode is set to
*_mode_warn, then they do not do a return_to_top_level(),
but merely print a warning.
Also changed [set|show]_[type|range]_command() to support
the new "warn" feature.
Thu Jul 18 17:50:54 EDT 1991
mipsread.c Added code to record the type of function arguments with
each particular function. Code is very similar to that
added to dbxread.c.
*** NOTE: The above additions have not been tested.
Fri Jul 19 11:19:10 EDT 1991
defs.h Added macros MAX_OF_SIZE, MIN_OF_SIZE, UMAX_OF_SIZE, and
UMIN_OF_SIZE, which when given a size of a numeric type,
return the maximum and minimum value it can hold. UMAX...
and UMIN... return the result for unsigned types.
symtab.h Added the macros MAX_OF_TYPE and MIN_OF_TYPE to operate on
struct types. They call above macros.
dbxread.c Renamed the MAX and MIN_OF_TYPE macros to ..._OF_CTYPE to
avoid a name conlict with the above.
c-exp.y Added range checking on numeric constants in
parse_number() for completeness.
valarith.c Made binop_user_defined_p() and unop_user_defined_p()
return 0 if working_lang is not language_c.
Thu Aug 8 14:17:22 EDT 1991
main.c
printcmd.c
breakpoint.c Documentation strings of some commands changed to
eliminate the references to the C language where
appropriate.
Tue Aug 13 15:48:03 EDT 1991
m2-exp.y Added qualified identifiers to the grammar. The semantics
are slightly different from those of the GDB operator ::
c-exp.y
m2-exp.y Added a rule to each grammar of the form: start ::= exp |
type_exp, where type_exp is any valid type expression.
expression.h
eval.c Added the opcode OP_TYPE, and an error case in eval.c.
printcmd.c Modified ptype_command() so it actually parses the input
(necessary for type expressions with scope qualifiers).
Added the function ptype_eval() which expects an
expression composed of one OP_TYPE element.
*.[ch] Replaced all occurences of parse_c_expression with
parse_expression
*.[ch] Replaced all occurences of parse_c_1 with parse_exp_1
[End of ChangeLog entries from Andrew Beers for Modula-2 support.]
Mon Sep 16 17:19:46 1991 John Gilmore (gnu at cygnus.com)
Small fixes from Peter Schauer:
* infrun.c (child_attach): Lint.
* solib.c (find_solib): Handle shared libs version 2.
Small fixes from David Wood:
* xm-ultra3.h (SYS_SIGLIST_MISSING): Typo.
Small fixes:
* remote-vx.c: Move <stdio.h> to top, for FILE. Fix from
John S <basrai%kanga.dnet@c3po.sm-alc.af.mil>.
* utils.c (wrap_here): Avoid wrap action of fputs_filtered if
chars_per_line is at maximum (user typed `set width 0'). Fix
from Andreas Schwab <schwab@ls5.informatik.uni-dortmund.de>.
Tue Sep 17 17:31:04 1991 Stu Grossman (grossman at cygnus.com)
* coredep.c: include ptrace.h where necessary.
* mipsread.c(parse_lines): fix unsigned char problem that was
messing up line numbers on SGI's and possibly other MIPS based
platforms.
* infrun.c (child_create_inferior): use better test to check
return val from setpgrp().
* tm-irix3.h, xm-irix3.h, tconfig/irix3, xconfig/irix3: add these
for sgi/irix support.
Wed Sep 18 04:33:31 1991 Per Bothner (bothner at cygnus.com)
* mipsread.c (parse_symbol): Put non-static procedures