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| author | Stan Shebs <shebs@codesourcery.com> | 2009-12-28 23:39:10 +0000 |
|---|---|---|
| committer | Stan Shebs <shebs@codesourcery.com> | 2009-12-28 23:39:10 +0000 |
| commit | f61e138d9a5c10da22c01ef377034e66e6978fe6 (patch) | |
| tree | 399c49505e3d1aa2e3f71937bd6f1034cf5c6acc /gdb/ax-general.c | |
| parent | ae77ee9a7fe8e4b4e05bd65b4f9f2b8ca63a129d (diff) | |
| download | gdb-f61e138d9a5c10da22c01ef377034e66e6978fe6.zip gdb-f61e138d9a5c10da22c01ef377034e66e6978fe6.tar.gz gdb-f61e138d9a5c10da22c01ef377034e66e6978fe6.tar.bz2 | |
2009-12-28 Stan Shebs <stan@codesourcery.com>
Add trace state variables.
* ax.h (enum agent_op): Add getv, setv, and tracev.
(ax_tsv): Declare.
* ax-gdb.c: Include tracepoint.h.
(gen_expr): Handle BINOP_ASSIGN, BINOP_ASSIGN_MODIFY, and
OP_INTERNALVAR.
(gen_expr_binop_rest): New function, split from gen_expr.
* ax-general.c (ax_tsv): New function.
(aop_map): Add new bytecodes.
* tracepoint.h (struct trace_state_variable): New struct.
(tsv_s): New typedef.
(find_trace_state_variable): Declare.
* tracepoint.c (tvariables): New global.
(next_tsv_number): New global.
(create_trace_state_variable): New function.
(find_trace_state_variable): New function.
(delete_trace_state_variable): New function.
(trace_variable_command): New function.
(delete_trace_variable_command): New function.
(tvariables_info): New function.
(trace_start_command): Download tsvs with initial values.
(_initialize_tracepoint): Add new commands.
* NEWS: Mention the addition of trace state variables.
==> doc/ChangeLog <==
2009-12-28 Stan Shebs <stan@codesourcery.com>
* gdb.texinfo (Trace State Variables): New section.
(Tracepoint Packets): Describe trace state variable packets.
* agentexpr.texi (Bytecode Descriptions): Describe trace state
variable bytecodes.
==> testsuite/ChangeLog <==
2009-12-28 Stan Shebs <stan@codesourcery.com>
* gdb.trace/tsv.exp: New file.
* gdb.base/completion.exp: Update ambiguous info output.
Diffstat (limited to 'gdb/ax-general.c')
| -rw-r--r-- | gdb/ax-general.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/gdb/ax-general.c b/gdb/ax-general.c index 65b5ba1..606e049 100644 --- a/gdb/ax-general.c +++ b/gdb/ax-general.c @@ -272,6 +272,22 @@ ax_reg (struct agent_expr *x, int reg) x->buf[x->len + 2] = (reg) & 0xff; x->len += 3; } + +/* Assemble code to operate on a trace state variable. */ + +void +ax_tsv (struct agent_expr *x, enum agent_op op, int num) +{ + /* Make sure the tsv number is in range. */ + if (num < 0 || num > 0xffff) + internal_error (__FILE__, __LINE__, _("ax-general.c (ax_tsv): variable number is %d, out of range"), num); + + grow_expr (x, 3); + x->buf[x->len] = op; + x->buf[x->len + 1] = (num >> 8) & 0xff; + x->buf[x->len + 2] = (num) & 0xff; + x->len += 3; +} @@ -324,9 +340,9 @@ struct aop_map aop_map[] = {"pop", 0, 0, 1, 0}, /* 0x29 */ {"zero_ext", 1, 0, 1, 1}, /* 0x2a */ {"swap", 0, 0, 2, 2}, /* 0x2b */ - {0, 0, 0, 0, 0}, /* 0x2c */ - {0, 0, 0, 0, 0}, /* 0x2d */ - {0, 0, 0, 0, 0}, /* 0x2e */ + {"getv", 2, 0, 0, 1}, /* 0x2c */ + {"setv", 2, 0, 0, 1}, /* 0x2d */ + {"tracev", 2, 0, 0, 1}, /* 0x2e */ {0, 0, 0, 0, 0}, /* 0x2f */ {"trace16", 2, 0, 1, 1}, /* 0x30 */ }; |