From 7bc83639079c1ba45fae3c16a00eb1806107ae28 Mon Sep 17 00:00:00 2001 From: Yao Qi Date: Mon, 16 Apr 2012 11:16:30 +0000 Subject: [PATCH] gdb/gdbserver/ * tracepoint.c (download_tracepoints): Moved to ... (cmd_qtstart): ... here. --- gdb/gdbserver/ChangeLog | 5 ++ gdb/gdbserver/tracepoint.c | 126 +++++++++++++++++-------------------- 2 files changed, 62 insertions(+), 69 deletions(-) diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index 51f0e5b0027..0d0865f6f99 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,8 @@ +2012-04-16 Yao Qi + + * tracepoint.c (download_tracepoints): Moved to ... + (cmd_qtstart): ... here. + 2012-04-14 Yao Qi * tracepoint.c: Include inttypes.h. diff --git a/gdb/gdbserver/tracepoint.c b/gdb/gdbserver/tracepoint.c index 03cb7cd0d7d..081f279cc9f 100644 --- a/gdb/gdbserver/tracepoint.c +++ b/gdb/gdbserver/tracepoint.c @@ -408,7 +408,6 @@ static int stop_tracing_handler (CORE_ADDR); struct breakpoint *flush_trace_buffer_bkpt; static int flush_trace_buffer_handler (CORE_ADDR); -static void download_tracepoints (void); static void download_trace_state_variables (void); static void upload_fast_traceframes (void); @@ -3088,10 +3087,13 @@ install_tracepoint (struct tracepoint *tpoint, char *own_buf) write_ok (own_buf); } +static void download_tracepoint_1 (struct tracepoint *tpoint); + static void cmd_qtstart (char *packet) { struct tracepoint *tpoint, *prev_ftpoint, *prev_stpoint; + CORE_ADDR tpptr = 0, prev_tpptr = 0; trace_debug ("Starting the trace"); @@ -3109,10 +3111,7 @@ cmd_qtstart (char *packet) /* Sync the fast tracepoints list in the inferior ftlib. */ if (agent_loaded_p ()) - { - download_tracepoints (); - download_trace_state_variables (); - } + download_trace_state_variables (); /* No previous fast tpoint yet. */ prev_ftpoint = NULL; @@ -3122,7 +3121,11 @@ cmd_qtstart (char *packet) *packet = '\0'; - /* Install tracepoints. */ + /* Start out empty. */ + if (agent_loaded_p ()) + write_inferior_data_ptr (ipa_sym_addrs.addr_tracepoints, 0); + + /* Download and install tracepoints. */ for (tpoint = tracepoints; tpoint; tpoint = tpoint->next) { /* Ensure all the hit counts start at zero. */ @@ -3138,48 +3141,69 @@ cmd_qtstart (char *packet) tpoint->handle = set_breakpoint_at (tpoint->address, tracepoint_handler); } - else if (tpoint->type == fast_tracepoint) + else if (tpoint->type == fast_tracepoint + || tpoint->type == static_tracepoint) { if (maybe_write_ipa_not_loaded (packet)) { - trace_debug ("Requested a fast tracepoint, but fast " - "tracepoints aren't supported."); + trace_debug ("Requested a %s tracepoint, but fast " + "tracepoints aren't supported.", + tpoint->type == static_tracepoint + ? "static" : "fast"); break; } - if (prev_ftpoint != NULL && prev_ftpoint->address == tpoint->address) - clone_fast_tracepoint (tpoint, prev_ftpoint); - else - { - if (install_fast_tracepoint (tpoint, packet) == 0) - prev_ftpoint = tpoint; - } - } - else if (tpoint->type == static_tracepoint) - { - if (maybe_write_ipa_ust_not_loaded (packet)) + if (tpoint->type == fast_tracepoint) { - trace_debug ("Requested a static tracepoint, but static " - "tracepoints are not supported."); - break; - } + download_tracepoint_1 (tpoint); - /* Can only probe a given marker once. */ - if (prev_stpoint != NULL && prev_stpoint->address == tpoint->address) - { - tpoint->handle = (void *) -1; + if (prev_ftpoint != NULL + && prev_ftpoint->address == tpoint->address) + clone_fast_tracepoint (tpoint, prev_ftpoint); + else + { + if (install_fast_tracepoint (tpoint, packet) == 0) + prev_ftpoint = tpoint; + } } else { - if (probe_marker_at (tpoint->address, packet) == 0) + if (!in_process_agent_supports_ust ()) { - tpoint->handle = (void *) -1; + trace_debug ("Requested a static tracepoint, but static " + "tracepoints are not supported."); + break; + } - /* So that we can handle multiple static tracepoints - at the same address easily. */ - prev_stpoint = tpoint; + download_tracepoint_1 (tpoint); + /* Can only probe a given marker once. */ + if (prev_stpoint != NULL + && prev_stpoint->address == tpoint->address) + tpoint->handle = (void *) -1; + else + { + if (probe_marker_at (tpoint->address, packet) == 0) + { + tpoint->handle = (void *) -1; + + /* So that we can handle multiple static tracepoints + at the same address easily. */ + prev_stpoint = tpoint; + } } } + + prev_tpptr = tpptr; + tpptr = tpoint->obj_addr_on_target; + + if (tpoint == tracepoints) + /* First object in list, set the head pointer in the + inferior. */ + write_inferior_data_ptr (ipa_sym_addrs.addr_tracepoints, tpptr); + else + write_inferior_data_ptr (prev_tpptr + offsetof (struct tracepoint, + next), + tpptr); } /* Any failure in the inner loop is sufficient cause to give @@ -5849,42 +5873,6 @@ download_tracepoint (struct tracepoint *tpoint) } -static void -download_tracepoints (void) -{ - CORE_ADDR tpptr = 0, prev_tpptr = 0; - struct tracepoint *tpoint; - - /* Start out empty. */ - write_inferior_data_ptr (ipa_sym_addrs.addr_tracepoints, 0); - - for (tpoint = tracepoints; tpoint; tpoint = tpoint->next) - { - if (tpoint->type != fast_tracepoint - && tpoint->type != static_tracepoint) - continue; - - prev_tpptr = tpptr; - - download_tracepoint_1 (tpoint); - - tpptr = tpoint->obj_addr_on_target; - - if (tpoint == tracepoints) - { - /* First object in list, set the head pointer in the - inferior. */ - write_inferior_data_ptr (ipa_sym_addrs.addr_tracepoints, tpptr); - } - else - { - write_inferior_data_ptr (prev_tpptr + offsetof (struct tracepoint, - next), - tpptr); - } - } -} - static void download_trace_state_variables (void) { -- 2.30.2