--- /dev/null
+/* Subroutines for the gcc driver.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+
+/* This will be called by the spec parser in gcc.c when it sees
+ a %:local_cpu_detect(args) construct. Currently it will be called
+ with either "arch" or "tune" as argument depending on if -march=native
+ or -mtune=native is to be substituted.
+
+ It returns a string containing new command line parameters to be
+ put at the place of the above two options, depending on what CPU
+ this is executed. E.g. "-march=zEC12" on a zEC12 for -march=native.
+ If the routine can't detect a known processor, the -march or -mtune
+ option is discarded.
+
+ ARGC and ARGV are set depending on the actual arguments given
+ in the spec. */
+const char *
+s390_host_detect_local_cpu (int argc, const char **argv)
+{
+ const char *cpu = NULL;
+ char buf[256];
+ FILE *f;
+ bool arch;
+
+ if (argc < 1)
+ return NULL;
+
+ arch = strcmp (argv[0], "arch") == 0;
+ if (!arch && strcmp (argv[0], "tune"))
+ return NULL;
+
+ f = fopen ("/proc/cpuinfo", "r");
+ if (f == NULL)
+ return NULL;
+
+ while (fgets (buf, sizeof (buf), f) != NULL)
+ if (strncmp (buf, "processor", sizeof ("processor") - 1) == 0)
+ {
+ if (strstr (buf, "machine = 9672") != NULL)
+ cpu = "g5";
+ else if (strstr (buf, "machine = 2064") != NULL
+ || strstr (buf, "machine = 2066") != NULL)
+ cpu = "z900";
+ else if (strstr (buf, "machine = 2084") != NULL
+ || strstr (buf, "machine = 2086") != NULL)
+ cpu = "z990";
+ else if (strstr (buf, "machine = 2094") != NULL
+ || strstr (buf, "machine = 2096") != NULL)
+ cpu = "z9-109";
+ else if (strstr (buf, "machine = 2097") != NULL
+ || strstr (buf, "machine = 2098") != NULL)
+ cpu = "z10";
+ else if (strstr (buf, "machine = 2817") != NULL
+ || strstr (buf, "machine = 2818") != NULL)
+ cpu = "z196";
+ else if (strstr (buf, "machine = 2827") != NULL
+ || strstr (buf, "machine = 2828") != NULL)
+ cpu = "zEC12";
+ else if (strstr (buf, "machine = 2964") != NULL)
+ cpu = "z13";
+ break;
+ }
+
+ fclose (f);
+
+ if (cpu == NULL)
+ return NULL;
+
+ return concat ("-m", argv[0], "=", cpu, NULL);
+}
{ "arch", "%{!march=*:-march=%(VALUE)}" }, \
{ "tune", "%{!mtune=*:-mtune=%(VALUE)}" }
+extern const char *s390_host_detect_local_cpu (int argc, const char **argv);
+# define EXTRA_SPEC_FUNCTIONS \
+ { "local_cpu_detect", s390_host_detect_local_cpu },
+
+# define MARCH_MTUNE_NATIVE_SPECS \
+ " %{march=native:%<march=native %:local_cpu_detect(arch)}" \
+ " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
+
/* Defaulting rules. */
#ifdef DEFAULT_TARGET_64BIT
#define DRIVER_SELF_SPECS \
"%{!m31:%{!m64:-m64}}", \
"%{!mesa:%{!mzarch:%{m31:-mesa}%{m64:-mzarch}}}", \
- "%{!march=*:%{mesa:-march=g5}%{mzarch:-march=z900}}"
+ "%{!march=*:%{mesa:-march=g5}%{mzarch:-march=z900}}", \
+ MARCH_MTUNE_NATIVE_SPECS
#else
#define DRIVER_SELF_SPECS \
"%{!m31:%{!m64:-m31}}", \
"%{!mesa:%{!mzarch:%{m31:-mesa}%{m64:-mzarch}}}", \
- "%{!march=*:%{mesa:-march=g5}%{mzarch:-march=z900}}"
+ "%{!march=*:%{mesa:-march=g5}%{mzarch:-march=z900}}", \
+ MARCH_MTUNE_NATIVE_SPECS
#endif
/* Constants needed to control the TEST DATA CLASS (TDC) instruction. */
projects / gcc.git / commitdiff