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gdb: Add tracepoint support for powerpc.

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gdb/gdbserver/ChangeLog:

	* linux-ppc-low.c (ppc_supports_tracepoints): New function.
	(struct linux_target_ops): Wire in the above.

gdb/testsuite/ChangeLog:

	* gdb.trace/ftrace.exp: Set arg0exp for ppc.
	* gdb.trace/mi-trace-unavailable.exp: Set pcnum for ppc.
	* gdb.trace/pending.exp: Accept leading dot before function name.
	* gdb.trace/trace-common.h: Add fast tracepoint dummy insn for ppc.
	* lib/trace-support.exp: Set registers for ppc.
This commit is contained in:
Marcin Kościelnicki 2016-01-07 16:48:02 +01:00
parent 98fa59e9b0
commit b04fd3bec9
8 changed files with 31 additions and 3 deletions
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5
gdb/gdbserver/ChangeLog
View file

@ -1,3 +1,8 @@
2016-03-09 Marcin Kościelnicki <koriakin@0x04.net>
* linux-ppc-low.c (ppc_supports_tracepoints): New function.
(struct linux_target_ops): Wire in the above.
2016-03-03 Yao Qi <yao.qi@linaro.org>
* linux-low.c: Update comments to start_step_over.

8
gdb/gdbserver/linux-ppc-low.c
View file

@ -756,6 +756,12 @@ ppc_arch_setup (void)
current_process ()->tdesc = tdesc;
}
static int
ppc_supports_tracepoints (void)
{
return 1;
}
struct linux_target_ops the_low_target = {
ppc_arch_setup,
ppc_regs_info,
@ -782,7 +788,7 @@ struct linux_target_ops the_low_target = {
NULL, /* new_fork */
NULL, /* prepare_to_resume */
NULL, /* process_qsupported */
NULL, /* supports_tracepoints */
ppc_supports_tracepoints,
NULL, /* get_thread_area */
NULL, /* install_fast_tracepoint_jump_pad */
NULL, /* emit_ops */

8
gdb/testsuite/ChangeLog
View file

@ -1,3 +1,11 @@
2016-03-09 Marcin Kościelnicki <koriakin@0x04.net>
* gdb.trace/ftrace.exp: Set arg0exp for ppc.
* gdb.trace/mi-trace-unavailable.exp: Set pcnum for ppc.
* gdb.trace/pending.exp: Accept leading dot before function name.
* gdb.trace/trace-common.h: Add fast tracepoint dummy insn for ppc.
* lib/trace-support.exp: Set registers for ppc.
2016-03-09 Marcin Kościelnicki <koriakin@0x04.net>
* gdb.trace/entry-values.exp: Link ${binfile}1.o to ${binfile}1 and

2
gdb/testsuite/gdb.trace/ftrace.exp
View file

@ -242,6 +242,8 @@ if [is_amd64_regs_target] {
set arg0exp "*(int *) (\$ebp + 8)"
} elseif { [istarget "aarch64*-*-*"] } {
set arg0exp "\$x0"
} elseif [istarget "powerpc*-*-*"] {
set arg0exp "\$r3"
} else {
set arg0exp ""
}

2
gdb/testsuite/gdb.trace/mi-trace-unavailable.exp
View file

@ -137,6 +137,8 @@ proc test_trace_unavailable { data_source } {
set pcnum 8
} elseif [is_aarch64_target] {
set pcnum 32
} elseif [istarget "powerpc*-*-*"] {
set pcnum 64
} else {
# Other ports support tracepoint should define the number
# of its own pc register.

3
gdb/testsuite/gdb.trace/pending.exp
View file

@ -307,7 +307,8 @@ proc pending_tracepoint_installed_during_trace { trace_type } \
\[0-9\]+\[\t \]+\(fast |\)tracepoint\[ \]+keep y.*pendfunc2.*" \
"tracepoint is resolved"
gdb_test "tfind start" "#0 $hex in pendfunc2 .*" "tfind test frame 0"
# powerpc64 shows "in .pendfunc2" here.
gdb_test "tfind start" "#0 $hex in .?pendfunc2 .*" "tfind test frame 0"
gdb_test "tfind" "Target failed to find requested trace frame..*" "tfind test frame"
}}

2
gdb/testsuite/gdb.trace/trace-common.h
View file

@ -40,7 +40,7 @@ x86_trace_dummy ()
" call " SYMBOL(x86_trace_dummy) "\n" \
)
#elif (defined __aarch64__)
#elif (defined __aarch64__) || (defined __powerpc__)
#define FAST_TRACEPOINT_LABEL(name) \
asm (" .global " SYMBOL(name) "\n" \

4
gdb/testsuite/lib/trace-support.exp
View file

@ -36,6 +36,10 @@ if [is_amd64_regs_target] {
set fpreg "x29"
set spreg "sp"
set pcreg "pc"
} elseif [istarget "powerpc*-*-*"] {
set fpreg "r31"
set spreg "r1"
set pcreg "pc"
} else {
set fpreg "fp"
set spreg "sp"