mirror of git://gcc.gnu.org/git/gcc.git
GCN mkoffload
2019-11-13 Andrew Stubbs <ams@codesourcery.com> Kwok Cheung Yeung <kcy@codesourcery.com> Julian Brown <julian@codesourcery.com> Tom de Vries <tom@codesourcery.com> gcc/ * config/gcn/mkoffload.c: New file. * config/gcn/offload.h: New file. From-SVN: r278133
This commit is contained in:
Andrew Stubbs
parent
b3d14b3aa3
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15e9e6795d
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/* Offload image generation tool for AMD GCN.
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Copyright (C) 2014-2019 Free Software Foundation, Inc.
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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 it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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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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<http://www.gnu.org/licenses/>. */
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/* Munges GCN assembly into a C source file defining the GCN code as a
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string.
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This is not a complete assembler. We presume the source is well
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formed from the compiler and can die horribly if it is not. */
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#include "config.h"
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#include "system.h"
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#include "coretypes.h"
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#include "obstack.h"
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#include "diagnostic.h"
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#include "intl.h"
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#include <libgen.h>
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#include "collect-utils.h"
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#include "gomp-constants.h"
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const char tool_name[] = "gcn mkoffload";
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#define COMMENT_PREFIX "#"
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struct id_map
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{
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id_map *next;
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char *gcn_name;
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};
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static id_map *func_ids, **funcs_tail = &func_ids;
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static id_map *var_ids, **vars_tail = &var_ids;
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/* Files to unlink. */
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static const char *gcn_s1_name;
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static const char *gcn_s2_name;
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static const char *gcn_o_name;
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static const char *gcn_cfile_name;
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enum offload_abi offload_abi = OFFLOAD_ABI_UNSET;
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/* Delete tempfiles. */
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void
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tool_cleanup (bool from_signal ATTRIBUTE_UNUSED)
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{
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if (gcn_cfile_name)
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maybe_unlink (gcn_cfile_name);
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if (gcn_s1_name)
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maybe_unlink (gcn_s1_name);
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if (gcn_s2_name)
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maybe_unlink (gcn_s2_name);
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if (gcn_o_name)
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maybe_unlink (gcn_o_name);
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}
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static void
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mkoffload_cleanup (void)
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{
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tool_cleanup (false);
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}
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/* Unlink FILE unless requested otherwise. */
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void
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maybe_unlink (const char *file)
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{
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if (!save_temps)
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{
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if (unlink_if_ordinary (file) && errno != ENOENT)
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fatal_error (input_location, "deleting file %s: %m", file);
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}
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else if (verbose)
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fprintf (stderr, "[Leaving %s]\n", file);
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}
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/* Add or change the value of an environment variable, outputting the
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change to standard error if in verbose mode. */
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static void
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xputenv (const char *string)
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{
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if (verbose)
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fprintf (stderr, "%s\n", string);
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putenv (CONST_CAST (char *, string));
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}
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/* Read the whole input file. It will be NUL terminated (but
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remember, there could be a NUL in the file itself. */
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static const char *
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read_file (FILE *stream, size_t *plen)
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{
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size_t alloc = 16384;
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size_t base = 0;
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char *buffer;
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if (!fseek (stream, 0, SEEK_END))
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{
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/* Get the file size. */
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long s = ftell (stream);
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if (s >= 0)
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alloc = s + 100;
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fseek (stream, 0, SEEK_SET);
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}
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buffer = XNEWVEC (char, alloc);
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for (;;)
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{
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size_t n = fread (buffer + base, 1, alloc - base - 1, stream);
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if (!n)
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break;
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base += n;
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if (base + 1 == alloc)
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{
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alloc *= 2;
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buffer = XRESIZEVEC (char, buffer, alloc);
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}
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}
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buffer[base] = 0;
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*plen = base;
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return buffer;
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}
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/* Parse STR, saving found tokens into PVALUES and return their number.
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Tokens are assumed to be delimited by ':'. */
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static unsigned
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parse_env_var (const char *str, char ***pvalues)
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{
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const char *curval, *nextval;
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char **values;
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unsigned num = 1, i;
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curval = strchr (str, ':');
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while (curval)
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{
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num++;
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curval = strchr (curval + 1, ':');
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}
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values = (char **) xmalloc (num * sizeof (char *));
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curval = str;
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nextval = strchr (curval, ':');
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if (nextval == NULL)
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nextval = strchr (curval, '\0');
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for (i = 0; i < num; i++)
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{
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int l = nextval - curval;
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values[i] = (char *) xmalloc (l + 1);
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memcpy (values[i], curval, l);
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values[i][l] = 0;
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curval = nextval + 1;
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nextval = strchr (curval, ':');
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if (nextval == NULL)
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nextval = strchr (curval, '\0');
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}
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*pvalues = values;
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return num;
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}
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/* Auxiliary function that frees elements of PTR and PTR itself.
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N is number of elements to be freed. If PTR is NULL, nothing is freed.
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If an element is NULL, subsequent elements are not freed. */
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static void
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free_array_of_ptrs (void **ptr, unsigned n)
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{
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unsigned i;
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if (!ptr)
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return;
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for (i = 0; i < n; i++)
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{
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if (!ptr[i])
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break;
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free (ptr[i]);
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}
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free (ptr);
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return;
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}
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/* Check whether NAME can be accessed in MODE. This is like access,
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except that it never considers directories to be executable. */
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static int
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access_check (const char *name, int mode)
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{
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if (mode == X_OK)
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{
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struct stat st;
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if (stat (name, &st) < 0 || S_ISDIR (st.st_mode))
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return -1;
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}
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return access (name, mode);
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}
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/* Parse an input assembler file, extract the offload tables etc.,
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and output (1) the assembler code, minus the tables (which can contain
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problematic relocations), and (2) a C file with the offload tables
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encoded as structured data. */
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static void
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process_asm (FILE *in, FILE *out, FILE *cfile)
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{
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int fn_count = 0, var_count = 0, dims_count = 0;
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struct obstack fns_os, vars_os, varsizes_os, dims_os;
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obstack_init (&fns_os);
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obstack_init (&vars_os);
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obstack_init (&varsizes_os);
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obstack_init (&dims_os);
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struct oaccdims
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{
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int d[3];
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char *name;
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} dim;
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/* Always add _init_array and _fini_array as kernels. */
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obstack_ptr_grow (&fns_os, xstrdup ("_init_array"));
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obstack_ptr_grow (&fns_os, xstrdup ("_fini_array"));
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fn_count += 2;
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char buf[1000];
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enum { IN_CODE, IN_VARS, IN_FUNCS } state = IN_CODE;
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while (fgets (buf, sizeof (buf), in))
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{
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switch (state)
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{
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case IN_CODE:
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{
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if (sscanf (buf, " ;; OPENACC-DIMS: %d, %d, %d : %ms\n",
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&dim.d[0], &dim.d[1], &dim.d[2], &dim.name) == 4)
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{
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obstack_grow (&dims_os, &dim, sizeof (dim));
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dims_count++;
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}
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break;
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}
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case IN_VARS:
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{
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char *varname;
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unsigned varsize;
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if (sscanf (buf, " .8byte %ms\n", &varname))
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{
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obstack_ptr_grow (&vars_os, varname);
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fgets (buf, sizeof (buf), in);
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if (!sscanf (buf, " .8byte %u\n", &varsize))
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abort ();
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obstack_int_grow (&varsizes_os, varsize);
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var_count++;
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/* The HSA Runtime cannot locate the symbol if it is not
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exported from the kernel. */
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fprintf (out, "\t.global %s\n", varname);
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}
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break;
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}
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case IN_FUNCS:
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{
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char *funcname;
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if (sscanf (buf, "\t.8byte\t%ms\n", &funcname))
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{
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obstack_ptr_grow (&fns_os, funcname);
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fn_count++;
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continue;
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}
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break;
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}
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}
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char dummy;
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if (sscanf (buf, " .section .gnu.offload_vars%c", &dummy) > 0)
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state = IN_VARS;
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else if (sscanf (buf, " .section .gnu.offload_funcs%c", &dummy) > 0)
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state = IN_FUNCS;
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else if (sscanf (buf, " .section %c", &dummy) > 0
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|| sscanf (buf, " .text%c", &dummy) > 0
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|| sscanf (buf, " .bss%c", &dummy) > 0
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|| sscanf (buf, " .data%c", &dummy) > 0
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|| sscanf (buf, " .ident %c", &dummy) > 0)
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state = IN_CODE;
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if (state == IN_CODE)
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fputs (buf, out);
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}
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char **fns = XOBFINISH (&fns_os, char **);
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struct oaccdims *dims = XOBFINISH (&dims_os, struct oaccdims *);
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fprintf (cfile, "#include <stdlib.h>\n");
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fprintf (cfile, "#include <stdbool.h>\n\n");
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char **vars = XOBFINISH (&vars_os, char **);
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unsigned *varsizes = XOBFINISH (&varsizes_os, unsigned *);
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fprintf (cfile,
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"static const struct global_var_info {\n"
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" const char *name;\n"
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" void *address;\n"
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"} vars[] = {\n");
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int i;
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for (i = 0; i < var_count; ++i)
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{
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const char *sep = i < var_count - 1 ? "," : " ";
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fprintf (cfile, " { \"%s\", NULL }%s /* size: %u */\n", vars[i], sep,
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varsizes[i]);
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|
}
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fprintf (cfile, "};\n\n");
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obstack_free (&vars_os, NULL);
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obstack_free (&varsizes_os, NULL);
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/* Dump out function idents. */
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|
fprintf (cfile, "static const struct hsa_kernel_description {\n"
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" const char *name;\n"
|
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" int oacc_dims[3];\n"
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||||||
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"} gcn_kernels[] = {\n ");
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|
dim.d[0] = dim.d[1] = dim.d[2] = 0;
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|
const char *comma;
|
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|
for (comma = "", i = 0; i < fn_count; comma = ",\n ", i++)
|
||||||
|
{
|
||||||
|
/* Find if we recorded dimensions for this function. */
|
||||||
|
int *d = dim.d; /* Previously zeroed. */
|
||||||
|
for (int j = 0; j < dims_count; j++)
|
||||||
|
if (strcmp (fns[i], dims[j].name) == 0)
|
||||||
|
{
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||||||
|
d = dims[j].d;
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||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
fprintf (cfile, "%s{\"%s\", {%d, %d, %d}}", comma,
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||||||
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fns[i], d[0], d[1], d[2]);
|
||||||
|
|
||||||
|
free (fns[i]);
|
||||||
|
}
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||||||
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fprintf (cfile, "\n};\n\n");
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||||||
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||||||
|
obstack_free (&fns_os, NULL);
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||||||
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for (i = 0; i < dims_count; i++)
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||||||
|
free (dims[i].name);
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||||||
|
obstack_free (&dims_os, NULL);
|
||||||
|
}
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||||||
|
|
||||||
|
/* Embed an object file into a C source file. */
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||||||
|
|
||||||
|
static void
|
||||||
|
process_obj (FILE *in, FILE *cfile)
|
||||||
|
{
|
||||||
|
size_t len = 0;
|
||||||
|
const char *input = read_file (in, &len);
|
||||||
|
|
||||||
|
/* Dump out an array containing the binary.
|
||||||
|
FIXME: do this with objcopy. */
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|
fprintf (cfile, "static unsigned char gcn_code[] = {");
|
||||||
|
for (size_t i = 0; i < len; i += 17)
|
||||||
|
{
|
||||||
|
fprintf (cfile, "\n\t");
|
||||||
|
for (size_t j = i; j < i + 17 && j < len; j++)
|
||||||
|
fprintf (cfile, "%3u,", (unsigned char) input[j]);
|
||||||
|
}
|
||||||
|
fprintf (cfile, "\n};\n\n");
|
||||||
|
|
||||||
|
fprintf (cfile,
|
||||||
|
"static const struct gcn_image {\n"
|
||||||
|
" size_t size;\n"
|
||||||
|
" void *image;\n"
|
||||||
|
"} gcn_image = {\n"
|
||||||
|
" %zu,\n"
|
||||||
|
" gcn_code\n"
|
||||||
|
"};\n\n",
|
||||||
|
len);
|
||||||
|
|
||||||
|
fprintf (cfile,
|
||||||
|
"static const struct gcn_image_desc {\n"
|
||||||
|
" const struct gcn_image *gcn_image;\n"
|
||||||
|
" unsigned kernel_count;\n"
|
||||||
|
" const struct hsa_kernel_description *kernel_infos;\n"
|
||||||
|
" unsigned global_variable_count;\n"
|
||||||
|
" const struct global_var_info *global_variables;\n"
|
||||||
|
"} target_data = {\n"
|
||||||
|
" &gcn_image,\n"
|
||||||
|
" sizeof (gcn_kernels) / sizeof (gcn_kernels[0]),\n"
|
||||||
|
" gcn_kernels,\n"
|
||||||
|
" sizeof (vars) / sizeof (vars[0]),\n"
|
||||||
|
" vars\n"
|
||||||
|
"};\n\n");
|
||||||
|
|
||||||
|
fprintf (cfile,
|
||||||
|
"#ifdef __cplusplus\n"
|
||||||
|
"extern \"C\" {\n"
|
||||||
|
"#endif\n"
|
||||||
|
"extern void GOMP_offload_register_ver"
|
||||||
|
" (unsigned, const void *, int, const void *);\n"
|
||||||
|
"extern void GOMP_offload_unregister_ver"
|
||||||
|
" (unsigned, const void *, int, const void *);\n"
|
||||||
|
"#ifdef __cplusplus\n"
|
||||||
|
"}\n"
|
||||||
|
"#endif\n\n");
|
||||||
|
|
||||||
|
fprintf (cfile, "extern const void *const __OFFLOAD_TABLE__[];\n\n");
|
||||||
|
|
||||||
|
fprintf (cfile, "static __attribute__((constructor)) void init (void)\n"
|
||||||
|
"{\n"
|
||||||
|
" GOMP_offload_register_ver (%#x, __OFFLOAD_TABLE__,"
|
||||||
|
" %d/*GCN*/, &target_data);\n"
|
||||||
|
"};\n",
|
||||||
|
GOMP_VERSION_PACK (GOMP_VERSION, GOMP_VERSION_GCN),
|
||||||
|
GOMP_DEVICE_GCN);
|
||||||
|
|
||||||
|
fprintf (cfile, "static __attribute__((destructor)) void fini (void)\n"
|
||||||
|
"{\n"
|
||||||
|
" GOMP_offload_unregister_ver (%#x, __OFFLOAD_TABLE__,"
|
||||||
|
" %d/*GCN*/, &target_data);\n"
|
||||||
|
"};\n",
|
||||||
|
GOMP_VERSION_PACK (GOMP_VERSION, GOMP_VERSION_GCN),
|
||||||
|
GOMP_DEVICE_GCN);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Compile a C file using the host compiler. */
|
||||||
|
|
||||||
|
static void
|
||||||
|
compile_native (const char *infile, const char *outfile, const char *compiler)
|
||||||
|
{
|
||||||
|
const char *collect_gcc_options = getenv ("COLLECT_GCC_OPTIONS");
|
||||||
|
if (!collect_gcc_options)
|
||||||
|
fatal_error (input_location,
|
||||||
|
"environment variable COLLECT_GCC_OPTIONS must be set");
|
||||||
|
|
||||||
|
struct obstack argv_obstack;
|
||||||
|
obstack_init (&argv_obstack);
|
||||||
|
obstack_ptr_grow (&argv_obstack, compiler);
|
||||||
|
if (save_temps)
|
||||||
|
obstack_ptr_grow (&argv_obstack, "-save-temps");
|
||||||
|
if (verbose)
|
||||||
|
obstack_ptr_grow (&argv_obstack, "-v");
|
||||||
|
switch (offload_abi)
|
||||||
|
{
|
||||||
|
case OFFLOAD_ABI_LP64:
|
||||||
|
obstack_ptr_grow (&argv_obstack, "-m64");
|
||||||
|
break;
|
||||||
|
case OFFLOAD_ABI_ILP32:
|
||||||
|
obstack_ptr_grow (&argv_obstack, "-m32");
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
gcc_unreachable ();
|
||||||
|
}
|
||||||
|
obstack_ptr_grow (&argv_obstack, infile);
|
||||||
|
obstack_ptr_grow (&argv_obstack, "-c");
|
||||||
|
obstack_ptr_grow (&argv_obstack, "-o");
|
||||||
|
obstack_ptr_grow (&argv_obstack, outfile);
|
||||||
|
obstack_ptr_grow (&argv_obstack, NULL);
|
||||||
|
|
||||||
|
const char **new_argv = XOBFINISH (&argv_obstack, const char **);
|
||||||
|
fork_execute (new_argv[0], CONST_CAST (char **, new_argv), true);
|
||||||
|
obstack_free (&argv_obstack, NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char **argv)
|
||||||
|
{
|
||||||
|
FILE *in = stdin;
|
||||||
|
FILE *out = stdout;
|
||||||
|
FILE *cfile = stdout;
|
||||||
|
const char *outname = 0, *offloadsrc = 0;
|
||||||
|
|
||||||
|
progname = "mkoffload";
|
||||||
|
diagnostic_initialize (global_dc, 0);
|
||||||
|
|
||||||
|
if (atexit (mkoffload_cleanup) != 0)
|
||||||
|
fatal_error (input_location, "atexit failed");
|
||||||
|
|
||||||
|
char *collect_gcc = getenv ("COLLECT_GCC");
|
||||||
|
if (collect_gcc == NULL)
|
||||||
|
fatal_error (input_location, "COLLECT_GCC must be set.");
|
||||||
|
const char *gcc_path = dirname (ASTRDUP (collect_gcc));
|
||||||
|
const char *gcc_exec = basename (ASTRDUP (collect_gcc));
|
||||||
|
|
||||||
|
size_t len = (strlen (gcc_path) + 1 + strlen (GCC_INSTALL_NAME) + 1);
|
||||||
|
char *driver = XALLOCAVEC (char, len);
|
||||||
|
|
||||||
|
if (strcmp (gcc_exec, collect_gcc) == 0)
|
||||||
|
/* collect_gcc has no path, so it was found in PATH. Make sure we also
|
||||||
|
find accel-gcc in PATH. */
|
||||||
|
gcc_path = NULL;
|
||||||
|
|
||||||
|
int driver_used = 0;
|
||||||
|
if (gcc_path != NULL)
|
||||||
|
driver_used = sprintf (driver, "%s/", gcc_path);
|
||||||
|
sprintf (driver + driver_used, "%s", GCC_INSTALL_NAME);
|
||||||
|
|
||||||
|
bool found = false;
|
||||||
|
if (gcc_path == NULL)
|
||||||
|
found = true;
|
||||||
|
else if (access_check (driver, X_OK) == 0)
|
||||||
|
found = true;
|
||||||
|
else
|
||||||
|
{
|
||||||
|
/* Don't use alloca pointer with XRESIZEVEC. */
|
||||||
|
driver = NULL;
|
||||||
|
/* Look in all COMPILER_PATHs for GCC_INSTALL_NAME. */
|
||||||
|
char **paths = NULL;
|
||||||
|
unsigned n_paths;
|
||||||
|
n_paths = parse_env_var (getenv ("COMPILER_PATH"), &paths);
|
||||||
|
for (unsigned i = 0; i < n_paths; i++)
|
||||||
|
{
|
||||||
|
len = strlen (paths[i]) + 1 + strlen (GCC_INSTALL_NAME) + 1;
|
||||||
|
driver = XRESIZEVEC (char, driver, len);
|
||||||
|
sprintf (driver, "%s/%s", paths[i], GCC_INSTALL_NAME);
|
||||||
|
if (access_check (driver, X_OK) == 0)
|
||||||
|
{
|
||||||
|
found = true;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
free_array_of_ptrs ((void **) paths, n_paths);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!found)
|
||||||
|
fatal_error (input_location,
|
||||||
|
"offload compiler %s not found", GCC_INSTALL_NAME);
|
||||||
|
|
||||||
|
/* We may be called with all the arguments stored in some file and
|
||||||
|
passed with @file. Expand them into argv before processing. */
|
||||||
|
expandargv (&argc, &argv);
|
||||||
|
|
||||||
|
/* Scan the argument vector. */
|
||||||
|
bool fopenmp = false;
|
||||||
|
bool fopenacc = false;
|
||||||
|
for (int i = 1; i < argc; i++)
|
||||||
|
{
|
||||||
|
#define STR "-foffload-abi="
|
||||||
|
if (strncmp (argv[i], STR, strlen (STR)) == 0)
|
||||||
|
{
|
||||||
|
if (strcmp (argv[i] + strlen (STR), "lp64") == 0)
|
||||||
|
offload_abi = OFFLOAD_ABI_LP64;
|
||||||
|
else if (strcmp (argv[i] + strlen (STR), "ilp32") == 0)
|
||||||
|
offload_abi = OFFLOAD_ABI_ILP32;
|
||||||
|
else
|
||||||
|
fatal_error (input_location,
|
||||||
|
"unrecognizable argument of option " STR);
|
||||||
|
}
|
||||||
|
#undef STR
|
||||||
|
else if (strcmp (argv[i], "-fopenmp") == 0)
|
||||||
|
fopenmp = true;
|
||||||
|
else if (strcmp (argv[i], "-fopenacc") == 0)
|
||||||
|
fopenacc = true;
|
||||||
|
else if (strcmp (argv[i], "-save-temps") == 0)
|
||||||
|
save_temps = true;
|
||||||
|
else if (strcmp (argv[i], "-v") == 0)
|
||||||
|
verbose = true;
|
||||||
|
}
|
||||||
|
if (!(fopenacc ^ fopenmp))
|
||||||
|
fatal_error (input_location, "either -fopenacc or -fopenmp must be set");
|
||||||
|
|
||||||
|
const char *abi;
|
||||||
|
switch (offload_abi)
|
||||||
|
{
|
||||||
|
case OFFLOAD_ABI_LP64:
|
||||||
|
abi = "-m64";
|
||||||
|
break;
|
||||||
|
case OFFLOAD_ABI_ILP32:
|
||||||
|
abi = "-m32";
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
gcc_unreachable ();
|
||||||
|
}
|
||||||
|
|
||||||
|
gcn_s1_name = make_temp_file (".mkoffload.1.s");
|
||||||
|
gcn_s2_name = make_temp_file (".mkoffload.2.s");
|
||||||
|
gcn_o_name = make_temp_file (".mkoffload.hsaco");
|
||||||
|
gcn_cfile_name = make_temp_file (".c");
|
||||||
|
|
||||||
|
/* Build arguments for compiler pass. */
|
||||||
|
struct obstack cc_argv_obstack;
|
||||||
|
obstack_init (&cc_argv_obstack);
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, driver);
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, "-S");
|
||||||
|
|
||||||
|
if (save_temps)
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, "-save-temps");
|
||||||
|
if (verbose)
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, "-v");
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, abi);
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, "-xlto");
|
||||||
|
if (fopenmp)
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, "-mgomp");
|
||||||
|
|
||||||
|
for (int ix = 1; ix != argc; ix++)
|
||||||
|
{
|
||||||
|
if (!strcmp (argv[ix], "-o") && ix + 1 != argc)
|
||||||
|
outname = argv[++ix];
|
||||||
|
else
|
||||||
|
{
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, argv[ix]);
|
||||||
|
|
||||||
|
if (argv[ix][0] != '-')
|
||||||
|
offloadsrc = argv[ix];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, "-o");
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, gcn_s1_name);
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack,
|
||||||
|
concat ("-mlocal-symbol-id=", offloadsrc, NULL));
|
||||||
|
obstack_ptr_grow (&cc_argv_obstack, NULL);
|
||||||
|
const char **cc_argv = XOBFINISH (&cc_argv_obstack, const char **);
|
||||||
|
|
||||||
|
/* Build arguments for assemble/link pass. */
|
||||||
|
struct obstack ld_argv_obstack;
|
||||||
|
obstack_init (&ld_argv_obstack);
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, driver);
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, gcn_s2_name);
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, "-lgomp");
|
||||||
|
|
||||||
|
for (int i = 1; i < argc; i++)
|
||||||
|
if (strncmp (argv[i], "-l", 2) == 0
|
||||||
|
|| strncmp (argv[i], "-Wl", 3) == 0
|
||||||
|
|| strncmp (argv[i], "-march", 6) == 0)
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, argv[i]);
|
||||||
|
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, "-o");
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, gcn_o_name);
|
||||||
|
obstack_ptr_grow (&ld_argv_obstack, NULL);
|
||||||
|
const char **ld_argv = XOBFINISH (&ld_argv_obstack, const char **);
|
||||||
|
|
||||||
|
/* Clean up unhelpful environment variables. */
|
||||||
|
char *execpath = getenv ("GCC_EXEC_PREFIX");
|
||||||
|
char *cpath = getenv ("COMPILER_PATH");
|
||||||
|
char *lpath = getenv ("LIBRARY_PATH");
|
||||||
|
unsetenv ("GCC_EXEC_PREFIX");
|
||||||
|
unsetenv ("COMPILER_PATH");
|
||||||
|
unsetenv ("LIBRARY_PATH");
|
||||||
|
|
||||||
|
/* Run the compiler pass. */
|
||||||
|
fork_execute (cc_argv[0], CONST_CAST (char **, cc_argv), true);
|
||||||
|
obstack_free (&cc_argv_obstack, NULL);
|
||||||
|
|
||||||
|
in = fopen (gcn_s1_name, "r");
|
||||||
|
if (!in)
|
||||||
|
fatal_error (input_location, "cannot open intermediate gcn asm file");
|
||||||
|
|
||||||
|
out = fopen (gcn_s2_name, "w");
|
||||||
|
if (!out)
|
||||||
|
fatal_error (input_location, "cannot open '%s'", gcn_s2_name);
|
||||||
|
|
||||||
|
cfile = fopen (gcn_cfile_name, "w");
|
||||||
|
if (!cfile)
|
||||||
|
fatal_error (input_location, "cannot open '%s'", gcn_cfile_name);
|
||||||
|
|
||||||
|
process_asm (in, out, cfile);
|
||||||
|
|
||||||
|
fclose (in);
|
||||||
|
fclose (out);
|
||||||
|
|
||||||
|
/* Run the assemble/link pass. */
|
||||||
|
fork_execute (ld_argv[0], CONST_CAST (char **, ld_argv), true);
|
||||||
|
obstack_free (&ld_argv_obstack, NULL);
|
||||||
|
|
||||||
|
in = fopen (gcn_o_name, "r");
|
||||||
|
if (!in)
|
||||||
|
fatal_error (input_location, "cannot open intermediate gcn obj file");
|
||||||
|
|
||||||
|
process_obj (in, cfile);
|
||||||
|
|
||||||
|
fclose (in);
|
||||||
|
fclose (cfile);
|
||||||
|
|
||||||
|
xputenv (concat ("GCC_EXEC_PREFIX=", execpath, NULL));
|
||||||
|
xputenv (concat ("COMPILER_PATH=", cpath, NULL));
|
||||||
|
xputenv (concat ("LIBRARY_PATH=", lpath, NULL));
|
||||||
|
|
||||||
|
compile_native (gcn_cfile_name, outname, collect_gcc);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
@ -0,0 +1,35 @@
|
||||||
|
/* Support for AMD GCN offloading.
|
||||||
|
|
||||||
|
Copyright (C) 2014-2019 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.
|
||||||
|
|
||||||
|
Under Section 7 of GPL version 3, you are granted additional
|
||||||
|
permissions described in the GCC Runtime Library Exception, version
|
||||||
|
3.1, as published by the Free Software Foundation.
|
||||||
|
|
||||||
|
You should have received a copy of the GNU General Public License and
|
||||||
|
a copy of the GCC Runtime Library Exception along with this program;
|
||||||
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
||||||
|
<http://www.gnu.org/licenses/>. */
|
||||||
|
|
||||||
|
#ifndef GCC_GCN_OFFLOAD_H
|
||||||
|
#define GCC_GCN_OFFLOAD_H
|
||||||
|
|
||||||
|
/* Support for OpenACC acc_on_device. */
|
||||||
|
|
||||||
|
#include "gomp-constants.h"
|
||||||
|
|
||||||
|
#define ACCEL_COMPILER_acc_device GOMP_DEVICE_GCN
|
||||||
|
|
||||||
|
#endif
|
||||||
Loading…
Reference in New Issue