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| author | Fred Fish <fnf@specifix.com> | 2002-02-22 00:17:13 +0000 |
|---|---|---|
| committer | Fred Fish <fnf@specifix.com> | 2002-02-22 00:17:13 +0000 |
| commit | e8717518fcdbb494188cbbfeb57037be3fe7bc11 (patch) | |
| tree | edcfe13a8489f62884f395ffd22663c3e848178c | |
| parent | b78c3c1808ccc5ac50423f61c4225cca2e0f7d66 (diff) | |
| download | gdb-e8717518fcdbb494188cbbfeb57037be3fe7bc11.zip gdb-e8717518fcdbb494188cbbfeb57037be3fe7bc11.tar.gz gdb-e8717518fcdbb494188cbbfeb57037be3fe7bc11.tar.bz2 | |
Approved by Jim Blandy (jimb@redhat.com).
2002-02-21 Fred Fish <fnf@redhat.com>
* dbxread.c (process_one_symbol): When finding an N_FUN symbol
that marks the end of the range of a function, enter a line number
entry that has a line number of zero and a PC offset that matches
the end of the function. This starts a range of PC's for which no
line number information is known.
* symtab.c (find_pc_sect_line): If our best fit is in a range of
PC's for which no line number info is found (line number is zero)
then we didn't find any valid line information.
* symtab.h: Document use of zero line number entry.
| -rw-r--r-- | gdb/ChangeLog | 12 | ||||
| -rw-r--r-- | gdb/dbxread.c | 1 | ||||
| -rw-r--r-- | gdb/symtab.c | 7 | ||||
| -rw-r--r-- | gdb/symtab.h | 5 |
4 files changed, 24 insertions, 1 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index d1385a2..4a1808e 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,15 @@ +2002-02-21 Fred Fish <fnf@redhat.com> + + * dbxread.c (process_one_symbol): When finding an N_FUN symbol + that marks the end of the range of a function, enter a line number + entry that has a line number of zero and a PC offset that matches + the end of the function. This starts a range of PC's for which no + line number information is known. + * symtab.c (find_pc_sect_line): If our best fit is in a range of + PC's for which no line number info is found (line number is zero) + then we didn't find any valid line information. + * symtab.h: Document use of zero line number entry. + 2002-02-21 Elena Zannoni <ezannoni@redhat.com> * ppc-linux-nat.c (PTRACE_GETVRREGS, PTRACE_SETVRREGS): Define. diff --git a/gdb/dbxread.c b/gdb/dbxread.c index e9c2a85..26be70c 100644 --- a/gdb/dbxread.c +++ b/gdb/dbxread.c @@ -2741,6 +2741,7 @@ process_one_symbol (int type, int desc, CORE_ADDR valu, char *name, { /* This N_FUN marks the end of a function. This closes off the current block. */ + record_line (current_subfile, 0, function_start_offset + valu); within_function = 0; new = pop_context (); diff --git a/gdb/symtab.c b/gdb/symtab.c index 743253f..d03a7c9 100644 --- a/gdb/symtab.c +++ b/gdb/symtab.c @@ -1823,6 +1823,13 @@ find_pc_sect_line (CORE_ADDR pc, struct sec *section, int notcurrent) val.end = alt->pc; } } + else if (best->line == 0) + { + /* If our best fit is in a range of PC's for which no line + number info is available (line number is zero) then we didn't + find any valid line information. */ + val.pc = pc; + } else { val.symtab = best_symtab; diff --git a/gdb/symtab.h b/gdb/symtab.h index f01cbbe..75470e6 100644 --- a/gdb/symtab.h +++ b/gdb/symtab.h @@ -801,7 +801,10 @@ struct linetable_entry 30 0x300 10 0x400 - for the increment part of a for stmt. - */ + If an entry has a line number of zero, it marks the start of a PC + range for which no line number information is available. It is + acceptable, though wasteful of table space, for such a range to be + zero length. */ struct linetable { |