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| author | Jan Kratochvil <jan.kratochvil@redhat.com> | 2011-10-09 19:41:17 +0000 |
|---|---|---|
| committer | Jan Kratochvil <jan.kratochvil@redhat.com> | 2011-10-09 19:41:17 +0000 |
| commit | 36b11add17bf287b541a107ee64f7e313e77092f (patch) | |
| tree | 10896f0386763977ee0ed611c252dac694387d88 /gdb/doc | |
| parent | 3343315ba7c882c948decb9aaad83e4c048a4527 (diff) | |
| download | gdb-36b11add17bf287b541a107ee64f7e313e77092f.zip gdb-36b11add17bf287b541a107ee64f7e313e77092f.tar.gz gdb-36b11add17bf287b541a107ee64f7e313e77092f.tar.bz2 | |
gdb/
Support @entry in input expressions.
* c-exp.y (ENTRY, unknown_cpp_name): New.
(exp: UNKNOWN_CPP_NAME): Change to `exp: unknown_cpp_name'.
(unknown_cpp_name: UNKNOWN_CPP_NAME, unknown_cpp_name: ENTRY)
(variable: name_not_typename '@' ENTRY, name: ENTRY)
(name_not_typename: ENTRY): New.
(yylex): Recognize ENTRY.
* eval.c (evaluate_subexp_standard): Support also OP_VAR_ENTRY_VALUE.
* expprint.c (print_subexp_standard, dump_subexp_body_standard):
Likewise.
* parse.c (operator_length_standard): Likewise.
* std-operator.def: New operator OP_VAR_ENTRY_VALUE.
gdb/doc/
Support @entry in input expressions.
* gdb.texinfo (Variables): Describe @entry names suffix.
(Print Settings): Add anchor for `set print entry-values'.
gdb/testsuite/
Support @entry in input expressions.
* gdb.arch/amd64-entry-value.exp (entry: p i@entry, entry: p j@entry)
(entry_stack: p s1@entry, entry_stack: p s2@entry)
(entry_stack: p d9@entry, entry_stack: p da@entry, tailcall: p i@entry)
(tailcall: p j@entry): New tests.
* gdb.cp/koenig.cc (A::entry): New function.
(main): Call it.
* gdb.cp/koenig.exp (p entry (c)): New test.
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/doc/gdb.texinfo | 18 |
2 files changed, 24 insertions, 0 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 7763cce..808cf21 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,4 +1,10 @@ 2011-10-09 Jan Kratochvil <jan.kratochvil@redhat.com> + + Support @entry in input expressions. + * gdb.texinfo (Variables): Describe @entry names suffix. + (Print Settings): Add anchor for `set print entry-values'. + +2011-10-09 Jan Kratochvil <jan.kratochvil@redhat.com> Eli Zaretskii <eliz@gnu.org> Display @entry parameter values (without references). diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo index 9de96c1..1ea2ba3 100644 --- a/gdb/doc/gdb.texinfo +++ b/gdb/doc/gdb.texinfo @@ -7277,6 +7277,23 @@ If you ask to print an object whose contents are unknown to by the debug information, @value{GDBN} will say @samp{<incomplete type>}. @xref{Symbols, incomplete type}, for more about this. +If you append @kbd{@@entry} string to a function parameter name you get its +value at the time the function got called. If the value is not available an +error message is printed. Entry values are available only with some compilers. +Entry values are normally also printed at the function parameter list according +to @ref{set print entry-values}. + +@smallexample +Breakpoint 1, d (i=30) at gdb.base/entry-value.c:29 +29 i++; +(gdb) next +30 e (i); +(gdb) print i +$1 = 31 +(gdb) print i@@entry +$2 = 30 +@end smallexample + Strings are identified as arrays of @code{char} values without specified signedness. Arrays of either @code{signed char} or @code{unsigned char} get printed as arrays of 1 byte sized integers. @code{-fsigned-char} or @@ -7941,6 +7958,7 @@ thus speeding up the display of each Ada frame. @item show print frame-arguments Show how the value of arguments should be displayed when printing a frame. +@anchor{set print entry-values} @item set print entry-values @var{value} @kindex set print entry-values Set printing of frame argument values at function entry. In some cases |