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| author | Jim Kingdon <jkingdon@engr.sgi.com> | 1993-04-22 22:27:25 +0000 |
|---|---|---|
| committer | Jim Kingdon <jkingdon@engr.sgi.com> | 1993-04-22 22:27:25 +0000 |
| commit | 5afa2040f45d3772e759c2e148ad8bf33115c80a (patch) | |
| tree | 1daadfad56d3ec827d2fe2e70f97b98abafb2117 /gdb/symtab.h | |
| parent | 4365c36c9b87e20565b20c52809c781c50831a18 (diff) | |
| download | gdb-5afa2040f45d3772e759c2e148ad8bf33115c80a.zip gdb-5afa2040f45d3772e759c2e148ad8bf33115c80a.tar.gz gdb-5afa2040f45d3772e759c2e148ad8bf33115c80a.tar.bz2 | |
Thu Apr 22 14:50:05 1993 Jim Kingdon (kingdon@cygnus.com)
* symtab.h: Fix LOC_REF_ARG comment.
Wed Apr 22 20:21:30 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
and Jim Kingdon (kingdon@cygnus.com)
* stabsread.c (define_symbol): Combine a 'p', 'r' arg pair to a
LOC_REGPARM symbol.
* config/sparc/tm-sparc.h (REG_STRUCT_HAS_ADDR): Revise comments.
symfile.c (compare_symbols): Don't check first character; STRCMP
does that.
* stabsread.c (define_symbol): Generate a LOC_REGPARM_ADDR for
structures that are passed by address in a register.
* symtab.h (enum address_class): Add LOC_REGPARM_ADDR.
* findvar.c (read_var_value),
printcmd.c (address_info, print_frame_args),
stack.c (print_frame_arg_vars), symmisc.c (print_{,partial_}symbol),
* symtab.c (lookup_block_symbol): Deal with it.
Diffstat (limited to 'gdb/symtab.h')
| -rw-r--r-- | gdb/symtab.h | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/gdb/symtab.h b/gdb/symtab.h index 82ad961..f04407d 100644 --- a/gdb/symtab.h +++ b/gdb/symtab.h @@ -448,10 +448,7 @@ enum address_class LOC_ARG, - /* Value address is at SYMBOL_VALUE offset in arglist. Currently - this is used for C++ references (and presumably will be used for - Pascal VAR parameters), and is only dereferenced in certain - contexts. */ + /* Value address is at SYMBOL_VALUE offset in arglist. */ LOC_REF_ARG, @@ -462,13 +459,20 @@ enum address_class FRAME_LOCALS_ADDRESS), and an is_argument flag. For some symbol formats (stabs, for some compilers at least), - gdb generates a LOC_ARG and a LOC_REGISTER rather than a LOC_REGPARM. - This is because that's what the compiler does, but perhaps it would - be better if the symbol-reading code detected this (is it possible?) - and generated a LOC_REGPARM. */ + the compiler generates two symbols, an argument and a register. + In some cases we combine them to a single LOC_REGPARM in symbol + reading, but I'm not sure whether we do for all cases (I'm thinking + of when it's passed on the stack and then loaded into a register). */ LOC_REGPARM, + /* Value is in specified register. Just like LOC_REGPARM except the + register holds the address of the argument instead of the argument + itself. This is currently used for the passing of structs and unions + on sparc and hppa. */ + + LOC_REGPARM_ADDR, + /* Value is a local variable at SYMBOL_VALUE offset in stack frame. */ LOC_LOCAL, |