/* Subroutines for the gcc driver.
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/* Subroutines for the gcc driver.
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Copyright (C) 2009 Free Software Foundation, Inc.
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Copyright (C) 2009 Free Software Foundation, Inc.
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Contributed by Arthur Loiret <aloiret@debian.org>
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Contributed by Arthur Loiret <aloiret@debian.org>
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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GCC is distributed in the hope that it will be useful,
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#include "config.h"
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#include "config.h"
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#include "system.h"
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#include "system.h"
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#include "coretypes.h"
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#include "coretypes.h"
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#include "tm.h"
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#include "tm.h"
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/* This will be called by the spec parser in gcc.c when it sees
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/* This will be called by the spec parser in gcc.c when it sees
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a %:local_cpu_detect(args) construct. Currently it will be called
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a %:local_cpu_detect(args) construct. Currently it will be called
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with either "cpu" or "tune" as argument depending on if -mcpu=native
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with either "cpu" or "tune" as argument depending on if -mcpu=native
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or -mtune=native is to be substituted.
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or -mtune=native is to be substituted.
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It returns a string containing new command line parameters to be
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It returns a string containing new command line parameters to be
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put at the place of the above two options, depending on what CPU
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put at the place of the above two options, depending on what CPU
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this is executed. E.g. "-mcpu=ev6" on an Alpha 21264 for
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this is executed. E.g. "-mcpu=ev6" on an Alpha 21264 for
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-mcpu=native. If the routine can't detect a known processor,
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-mcpu=native. If the routine can't detect a known processor,
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the -mcpu or -mtune option is discarded.
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the -mcpu or -mtune option is discarded.
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ARGC and ARGV are set depending on the actual arguments given
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ARGC and ARGV are set depending on the actual arguments given
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in the spec. */
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in the spec. */
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const char *
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const char *
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host_detect_local_cpu (int argc, const char **argv)
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host_detect_local_cpu (int argc, const char **argv)
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{
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{
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const char *cpu = NULL;
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const char *cpu = NULL;
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char buf[128];
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char buf[128];
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FILE *f;
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FILE *f;
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static const struct cpu_names {
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static const struct cpu_names {
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const char *const name;
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const char *const name;
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const char *const cpu;
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const char *const cpu;
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} cpu_names[] = {
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} cpu_names[] = {
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{ "EV79", "ev67" },
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{ "EV79", "ev67" },
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{ "EV7", "ev67" },
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{ "EV7", "ev67" },
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{ "EV69", "ev67" },
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{ "EV69", "ev67" },
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{ "EV68CX", "ev67" },
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{ "EV68CX", "ev67" },
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{ "EV68CB", "ev67" },
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{ "EV68CB", "ev67" },
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{ "EV68AL", "ev67" },
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{ "EV68AL", "ev67" },
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{ "EV67", "ev67" },
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{ "EV67", "ev67" },
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{ "EV6", "ev6" },
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{ "EV6", "ev6" },
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{ "PCA57", "pca56" },
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{ "PCA57", "pca56" },
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{ "PCA56", "pca56" },
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{ "PCA56", "pca56" },
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{ "EV56", "ev56" },
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{ "EV56", "ev56" },
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{ "EV5", "ev5" },
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{ "EV5", "ev5" },
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{ "LCA45", "ev45" },
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{ "LCA45", "ev45" },
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{ "EV45", "ev45" },
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{ "EV45", "ev45" },
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{ "LCA4", "ev4" },
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{ "LCA4", "ev4" },
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{ "EV4", "ev4" },
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{ "EV4", "ev4" },
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/* { "EV3", "ev3" }, */
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/* { "EV3", "ev3" }, */
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{ 0, 0 }
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{ 0, 0 }
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};
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};
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int i;
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int i;
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if (argc < 1)
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if (argc < 1)
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return NULL;
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return NULL;
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if (strcmp (argv[0], "cpu") && strcmp (argv[0], "tune"))
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if (strcmp (argv[0], "cpu") && strcmp (argv[0], "tune"))
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return NULL;
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return NULL;
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f = fopen ("/proc/cpuinfo", "r");
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f = fopen ("/proc/cpuinfo", "r");
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if (f == NULL)
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if (f == NULL)
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return NULL;
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return NULL;
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while (fgets (buf, sizeof (buf), f) != NULL)
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while (fgets (buf, sizeof (buf), f) != NULL)
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if (strncmp (buf, "cpu model", sizeof ("cpu model") - 1) == 0)
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if (strncmp (buf, "cpu model", sizeof ("cpu model") - 1) == 0)
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{
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{
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for (i = 0; cpu_names [i].name; i++)
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for (i = 0; cpu_names [i].name; i++)
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if (strstr (buf, cpu_names [i].name) != NULL)
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if (strstr (buf, cpu_names [i].name) != NULL)
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{
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{
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cpu = cpu_names [i].cpu;
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cpu = cpu_names [i].cpu;
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break;
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break;
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}
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}
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break;
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break;
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}
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}
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fclose (f);
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fclose (f);
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if (cpu == NULL)
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if (cpu == NULL)
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return NULL;
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return NULL;
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return concat ("-m", argv[0], "=", cpu, NULL);
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return concat ("-m", argv[0], "=", cpu, NULL);
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}
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}
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