From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1461) id D21533858D1E; Mon, 6 Feb 2023 17:15:25 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D21533858D1E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1675703725; bh=ikrK4uCubHHbhafeytw5GnNJvSvwBBg2EgufDmZrt3Y=; h=From:To:Subject:Date:From; b=Naj4D8vBupS0SOWG2j7RgaS4WGXBrMJVvA972+i5PaHIjg4X7h60VbLCg15qGvHuL /ISdCJTIbf7JbSODMMSO2NioBOO6xjFsEwAbBmOWSGrjN248DXedp3zPoKN5KTncf4 Xs/Sdhxb5STTu2nwu7PRFYW7MdCAUjYBzPSEq7oo= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Andrew Stubbs To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-5720] amdgcn: Pass -mstack-size through to runtime X-Act-Checkin: gcc X-Git-Author: Andrew Stubbs X-Git-Refname: refs/heads/master X-Git-Oldrev: 7433747543195a4b936892d066b10026509512b7 X-Git-Newrev: 45e01229af33a3dc3f124dcaec4b4ae11e9d07ce Message-Id: <20230206171525.D21533858D1E@sourceware.org> Date: Mon, 6 Feb 2023 17:15:25 +0000 (GMT) List-Id: https://gcc.gnu.org/g:45e01229af33a3dc3f124dcaec4b4ae11e9d07ce commit r13-5720-g45e01229af33a3dc3f124dcaec4b4ae11e9d07ce Author: Andrew Stubbs Date: Mon Feb 6 12:47:28 2023 +0000 amdgcn: Pass -mstack-size through to runtime But only for the offload case. gcc/ChangeLog: * config/gcn/mkoffload.cc (gcn_stack_size): New global variable. (process_asm): Create a constructor for GCN_STACK_SIZE. (main): Parse the -mstack-size option. Diff: --- gcc/config/gcn/mkoffload.cc | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/gcc/config/gcn/mkoffload.cc b/gcc/config/gcn/mkoffload.cc index 9c262f974be..9493f89fec3 100644 --- a/gcc/config/gcn/mkoffload.cc +++ b/gcc/config/gcn/mkoffload.cc @@ -117,6 +117,8 @@ uint32_t elf_arch = EF_AMDGPU_MACH_AMDGCN_GFX803; // Default GPU architecture. uint32_t elf_flags = (EF_AMDGPU_FEATURE_XNACK_ANY_V4 | EF_AMDGPU_FEATURE_SRAMECC_ANY_V4); +static int gcn_stack_size = 0; /* Zero means use default. */ + /* Delete tempfiles. */ void @@ -662,6 +664,18 @@ process_asm (FILE *in, FILE *out, FILE *cfile) } fprintf (cfile, "\n};\n\n"); + /* Set the stack size if the user configured a value. */ + if (gcn_stack_size) + fprintf (cfile, + "static __attribute__((constructor))\n" + "void configure_stack_size (void)\n" + "{\n" + " const char *val = getenv (\"GCN_STACK_SIZE\");\n" + " if (!val || val[0] == '\\0')\n" + " setenv (\"GCN_STACK_SIZE\", \"%d\", true);\n" + "}\n\n", + gcn_stack_size); + obstack_free (&fns_os, NULL); for (i = 0; i < dims_count; i++) free (dims[i].name); @@ -920,6 +934,10 @@ main (int argc, char **argv) elf_arch = EF_AMDGPU_MACH_AMDGCN_GFX908; else if (strcmp (argv[i], "-march=gfx90a") == 0) elf_arch = EF_AMDGPU_MACH_AMDGCN_GFX90a; +#define STR "-mstack-size=" + else if (startswith (argv[i], STR)) + gcn_stack_size = atoi (argv[i] + strlen (STR)); +#undef STR } if (!(fopenacc ^ fopenmp))