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* frame.h, symtab.h: Revise comments regarding baseregs.

This commit is contained in:
Jim Kingdon 1993-08-21 02:54:33 +00:00
parent baf4ded0d8
commit 313dd52048
3 changed files with 27 additions and 8 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
Fri Aug 20 14:01:39 1993 Jim Kingdon (kingdon@lioth.cygnus.com)
* frame.h, symtab.h: Revise comments regarding baseregs.
Fri Aug 20 15:07:05 1993 Peter Schauer (pes@regent.e-technik.tu-muenchen.de)
* mipsread.c (parse_partial_symbols, psymtab_to_symtab_1):

4
gdb/frame.h
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@ -160,6 +160,10 @@ struct frame_saved_regs
on a machine for which gdb has not been configured to support such
access, report the failure to support this access mode. */
/* FIXME: Code using this should be using get_saved_register, and a
basereg number should just be an ordinary register number. There
is no reason for this to be machine-specific. */
#if !defined (FRAME_GET_BASEREG_VALUE)
#define FRAME_GET_BASEREG_VALUE(frame, regno) \

27
gdb/symtab.h
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@ -287,7 +287,12 @@ struct minimal_symbol
mst_text, /* Generally executable instructions */
mst_data, /* Generally initialized data */
mst_bss, /* Generally uninitialized data */
mst_abs /* Generally absolute (nonrelocatable) */
mst_abs, /* Generally absolute (nonrelocatable) */
/* For the mst_file* types, the names are only guaranteed to be unique
within a given .o file. */
mst_file_text, /* Static version of mst_text */
mst_file_data, /* Static version of mst_data */
mst_file_bss /* Static version of mst_bss */
} type;
};
@ -563,12 +568,18 @@ struct symbol
#define SYMBOL_LINE(symbol) (symbol)->line
#define SYMBOL_BASEREG(symbol) (symbol)->aux_value.basereg.regno
/* This currently fails because some symbols are not being initialized
to zero on allocation, and no code is currently setting this value.
Basereg handling will probably change significantly in the next release.
FIXME -fnf */
/* If we want to do baseregs using this approach we should have a
LOC_BASEREG (and LOC_BASEREG_ARG) rather than changing the meaning
of LOC_LOCAL, LOC_ARG, etc. based on SYMBOL_BASEREG_VALID. But
this approach provides just a small fraction of the expressiveness
of a DWARF location, so it does less than we might want. On the
other hand, it may do more than we need; FRAME_LOCALS_ADDRESS,
LOC_REGPARM_ADDR, and similar things seem to handle most of the
cases which actually come up. */
#if 0
/* This currently fails because some symbols are not being initialized
to zero on allocation, and no code is currently setting this value. */
#define SYMBOL_BASEREG_VALID(symbol) (symbol)->aux_value.basereg.regno_valid
#else
#define SYMBOL_BASEREG_VALID(symbol) 0
@ -1092,9 +1103,6 @@ extern char **make_symbol_completion_list PARAMS ((char *, char *));
/* symtab.c */
extern void
clear_symtab_users_once PARAMS ((void));
extern struct partial_symtab *
find_main_psymtab PARAMS ((void));
@ -1105,6 +1113,9 @@ blockvector_for_pc PARAMS ((CORE_ADDR, int *));
/* symfile.c */
extern void
clear_symtab_users PARAMS ((void));
extern enum language
deduce_language_from_filename PARAMS ((char *));