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[PATCH 06/16] gcc: driver: add timevars for as, collect2, ld
- From: David Malcolm <dmalcolm at redhat dot com>
- To: gcc-patches at gcc dot gnu dot org, binutils at sourceware dot org
- Cc: David Malcolm <dmalcolm at redhat dot com>
- Date: Mon, 1 Jun 2015 17:04:14 -0400
- Subject: [PATCH 06/16] gcc: driver: add timevars for as, collect2, ld
- Authentication-results: sourceware.org; auth=none
- References: <1433192664-50156-1-git-send-email-dmalcolm at redhat dot com>
gcc/ChangeLog:
* gcc.c (execute): Identify certain commands, and account their
time to specific timevars.
* gcc.h (driver::get_timer): New accessor.
* timevar.def (TV_DRIVER_EXECUTE_AS): New.
(TV_DRIVER_EXECUTE_COLLECT2): New.
(TV_DRIVER_EXECUTE_LD): New.
(TV_DRIVER_EXECUTE_OTHER): New.
---
gcc/gcc.c | 19 +++++++++++++++++++
gcc/gcc.h | 2 ++
gcc/timevar.def | 4 ++++
3 files changed, 25 insertions(+)
diff --git a/gcc/gcc.c b/gcc/gcc.c
index 46e750d..93f41ec 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -2845,6 +2845,25 @@ execute (void)
if (strcmp (arg, "|") == 0)
n_commands++;
+ /* If we're timing things, and we have a single command in the
+ pipeline, bill the time to that command. Given that we
+ need a timevar for each one, we only split out a few important
+ commands. */
+ timevar_id_t tv_id;
+ tv_id = TV_DRIVER_EXECUTE_OTHER;
+ gcc_assert (g_driver);
+ timer *driver_timer = g_driver->get_timer ();
+ if (driver_timer && n_commands == 1)
+ {
+ if (0 == strcmp (argbuf[0], "as"))
+ tv_id = TV_DRIVER_EXECUTE_AS;
+ else if (0 == strcmp (argbuf[0], "collect2"))
+ tv_id = TV_DRIVER_EXECUTE_COLLECT2;
+ else if (0 == strcmp (argbuf[0], "ld"))
+ tv_id = TV_DRIVER_EXECUTE_LD;
+ }
+ auto_timevar tv (driver_timer, tv_id);
+
/* Get storage for each command. */
commands = (struct command *) alloca (n_commands * sizeof (struct command));
diff --git a/gcc/gcc.h b/gcc/gcc.h
index cfff8ef..15bc11d 100644
--- a/gcc/gcc.h
+++ b/gcc/gcc.h
@@ -37,6 +37,8 @@ class driver
int main (int argc, char **argv);
void finalize ();
+ timer *get_timer () const { return m_timer; }
+
private:
void set_progname (const char *argv0) const;
void expand_at_files (int *argc, char ***argv) const;
diff --git a/gcc/timevar.def b/gcc/timevar.def
index d04a729..ce9236d 100644
--- a/gcc/timevar.def
+++ b/gcc/timevar.def
@@ -291,6 +291,10 @@ DEFTIMEVAR (TV_ASSEMBLE , "assemble JIT code")
DEFTIMEVAR (TV_DRIVER_SETUP , "driver: setup")
DEFTIMEVAR (TV_DRIVER_SPEC , "driver: do spec on infiles")
DEFTIMEVAR (TV_DRIVER_LINK , "driver: run linker")
+DEFTIMEVAR (TV_DRIVER_EXECUTE_AS , "driver: executing \"as\"")
+DEFTIMEVAR (TV_DRIVER_EXECUTE_COLLECT2, "driver: executing \"collect2\"")
+DEFTIMEVAR (TV_DRIVER_EXECUTE_LD , "driver: executing \"ld\"")
+DEFTIMEVAR (TV_DRIVER_EXECUTE_OTHER , "driver: executing subprocess")
DEFTIMEVAR (TV_LINK , "link JIT code")
DEFTIMEVAR (TV_LOAD , "load JIT result")
DEFTIMEVAR (TV_JIT_ACQUIRING_MUTEX , "acquiring JIT mutex")
--
1.8.5.3