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authorJoel Sherrill <joel.sherrill@OARcorp.com>2006-08-15 21:02:55 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2006-08-15 21:02:55 +0000
commit16fd5a99e1a8c433077e70c1a48e42cc01bf7d29 (patch)
tree72d3d6b2daa4c48f453ac18e32ab20fbaa11d92a
parent5f885443699b77018acccb9fff05f7d436f4fbb8 (diff)
downloadrtems-16fd5a99e1a8c433077e70c1a48e42cc01bf7d29.tar.bz2
2006-08-15 Kolja Waschk <kawk@telos.de>
* linkcmds.c, linkcmds.h, memory.c, memory.h, sample.ptf: New files. * bridges.c: corrected detection of bridged connections * clocks.c: removed a printf * linkcmds.[ch] new files, added output of linker script * Makefile.am: added new files * memory.[ch]: new files, detection of memory in SOPC configuration * nios2gen.c: updated command line parsing and output control * output.[ch]: improved output of BSP header file * ptf.[ch]: added ptf_dump_ptf_item and small fixes * sample.ptf: new file, sample configuration for nios2gen * README: updated
-rw-r--r--tools/cpu/nios2/ChangeLog14
-rw-r--r--tools/cpu/nios2/Makefile.am2
-rw-r--r--tools/cpu/nios2/README137
-rw-r--r--tools/cpu/nios2/bridges.c26
-rw-r--r--tools/cpu/nios2/clocks.c1
-rw-r--r--tools/cpu/nios2/linkcmds.c122
-rw-r--r--tools/cpu/nios2/linkcmds.h25
-rw-r--r--tools/cpu/nios2/memory.c104
-rw-r--r--tools/cpu/nios2/memory.h29
-rw-r--r--tools/cpu/nios2/nios2gen.c399
-rw-r--r--tools/cpu/nios2/output.c12
-rw-r--r--tools/cpu/nios2/output.h1
-rw-r--r--tools/cpu/nios2/ptf.c62
-rw-r--r--tools/cpu/nios2/ptf.h2
-rw-r--r--tools/cpu/nios2/sample.ptf462
15 files changed, 1283 insertions, 115 deletions
diff --git a/tools/cpu/nios2/ChangeLog b/tools/cpu/nios2/ChangeLog
index a59b502fb7..56f12a7198 100644
--- a/tools/cpu/nios2/ChangeLog
+++ b/tools/cpu/nios2/ChangeLog
@@ -1,3 +1,17 @@
+2006-08-15 Kolja Waschk <kawk@telos.de>
+
+ * linkcmds.c, linkcmds.h, memory.c, memory.h, sample.ptf: New files.
+ * bridges.c: corrected detection of bridged connections
+ * clocks.c: removed a printf
+ * linkcmds.[ch] new files, added output of linker script
+ * Makefile.am: added new files
+ * memory.[ch]: new files, detection of memory in SOPC configuration
+ * nios2gen.c: updated command line parsing and output control
+ * output.[ch]: improved output of BSP header file
+ * ptf.[ch]: added ptf_dump_ptf_item and small fixes
+ * sample.ptf: new file, sample configuration for nios2gen
+ * README: updated
+
2006-08-10 Joel Sherrill <joel@oarcorp.com>
* nios2gen.c: Added some very basic support for --help and --version
diff --git a/tools/cpu/nios2/Makefile.am b/tools/cpu/nios2/Makefile.am
index b71477af4b..8ca3c89df0 100644
--- a/tools/cpu/nios2/Makefile.am
+++ b/tools/cpu/nios2/Makefile.am
@@ -11,6 +11,8 @@ nios2gen_SOURCES = nios2gen.c \
devices.c devices.h \
clocks.c clocks.h \
output.c output.h \
+ linkcmds.c linkcmds.h \
+ memory.c memory.h \
ptf.h ptf.c
if HELP2MAN
diff --git a/tools/cpu/nios2/README b/tools/cpu/nios2/README
index 06c59fe3fc..f961dff6b1 100644
--- a/tools/cpu/nios2/README
+++ b/tools/cpu/nios2/README
@@ -1,17 +1,146 @@
$Id$
+nios2gen:
+ Tool to generate BSP data for boards utilizing NIOS2 soft core processor.
+
+=================================
+What it does
+
+It creates a sopc.h and linkcmds file for RTEMS nios2 BSPs from one or more inputs:
+
+1. SOPC System Description PTF
+
As an output from SOPC Builder you get a file with extension ".ptf" that fully
describes the SOPC, including all CPUs, memory and integrated peripherals.
+(PTF simply means "plain-text file").
-It is structured as
+2. BSP Configuration PTF
+This file, using the same format as the SOPC System Description PTF, describes
+which components of the SOPC shall be used by the BSP. For example, there may
+be several timers, but a BSP wants at least one named "CLOCK" and optionally
+another named "TIMER". This mapping can be specified in the BSP.
+=================================
+Contents of the configuration PTF
+There can be definitions of ...
+
+HEADER: This is written to sopc.h before anything else. Example:
+
+ HEADER = "
+ #ifndef __SOPC_H
+ #define __SOPC_H 1
+ ";
+
+EPILOG: This is written to sopc.h after anything else. Example:
+
+ EPILOG = "
+ #endif
+ ";
+
+CLOCKS section: Used to specify names for clocks to be used in definitions in
+the sopc.h. The default name (if none is specified here) is the uppercased name
+as in the system description PTF. Specify the name you want on the left, the
+name in the sopc PTF on the right! Example:
+
+ CLOCKS
+ {
+ GLOBAL_CLOCK = "sys_clk";
+ }
+
+MODULES section: Same as clocks but for modules / peripherals. As a special definition,
+if the PTF contains more than one nios2 CPU, it /must/ define a CPU to use. Example to
+select cpu_0 and rename timer_0 to CLOCK and timer_1 to TIMER:
+
+ MODULES
+ {
+ CPU = "cpu_0";
+ CLOCK = "timer_0";
+ TIMER = "timer_1";
+ }
+
+CLASS xyz sections: These specify what you want in the sopc.h, and how the definitions
+shall be named. Actually, the CLASS xyz should look exactly like the corresponding MODULE
+specification in the system description PTF of modules belonging to that class; e.g. a
+a JTAG UART is originally described like this:
+
+ MODULE jtag_uart_0
+ {
+ class = "altera_avalon_jtag_uart";
+ class_version = "1.0";
+ iss_model_name = "altera_avalon_jtag_uart";
+ SLAVE avalon_jtag_slave
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Bus_Type = "avalon";
+ Is_Printable_Device = "1";
+ Address_Alignment = "native";
+ Address_Width = "1";
+ Data_Width = "32";
+ Has_IRQ = "1";
+ Read_Wait_States = "peripheral_controlled";
+ Write_Wait_States = "peripheral_controlled";
+ JTAG_Hub_Base_Id = "0x04006E";
+ JTAG_Hub_Instance_Id = "0";
+ MASTERED_BY cpu_0/data_master
+ {
+ priority = "1";
+ }
+ IRQ_MASTER cpu_0/data_master
+ {
+ IRQ_Number = "2";
+ }
+ Base_Address = "0x08000000";
+ }
+ }
+ ...
+ }
+
+If you want to have definitions about its base address and irq number in your sopc.h,
+define a CLASS for altera_avalon_jtag_uart that matches the MODULE description above,
+but instead of values for the items you specify names to be used in your sopc.h (You
+can omit items from the MODULE as you like, but the section nesting must match; and
+section names (such as avalon_jtag_slave for the SLAVE section) also have to match)
+
+ CLASS altera_avalon_jtag_uart
+ {
+ SLAVE avalon_jtag_slave
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ IRQ_MASTER { IRQ_Number = "IRQ"; }
+ }
+ }
+ }
+
+The output for jtag_uart_0 will be:
+
+ #define JTAG_UART_BASE_ADDR 0x021208D0
+ #define JTAG_UART_IRQ 1
+
+There are some values with special meaning to nios2gen,
+
+N2G_CLOCKREF_CLOCK: This should be used whereever the value in the SOPC PTF
+specifies the name of a clock. nios2gen will use whatever you configured for
+the selected clock in your CLOCKS section.
+
+N2G_CLOCKREF_DEVICE: This should be used whereever the value in the SOPC PTF
+specifies the name of a module. nios2gen will use whatever you configured for
+the selected module in your MODULES section.
+
+Additionally, you can specify items in your CLASSes so that nios2gen will include
+constant definitions in the sopc.h whenever such CLASS is present. The format is
+
+ N2G_DEFINE_xyz = "123"
+
+and will result in
+
+#define MODULENAME_xyz 123
-nios2gen:
- Tool to generate BSP data for boards utilizing NIOS2 soft core processor.
-Specify the PTF and name of the CPU (if there are more than one).
diff --git a/tools/cpu/nios2/bridges.c b/tools/cpu/nios2/bridges.c
index f792d5e1aa..e5f36e07c4 100644
--- a/tools/cpu/nios2/bridges.c
+++ b/tools/cpu/nios2/bridges.c
@@ -29,6 +29,9 @@
now we simply assume that bridges never translate anything.
*/
+#include <string.h>
+#include <stdlib.h>
+
#include "ptf.h"
#include "bridges.h"
@@ -40,24 +43,15 @@ int is_bridged(
char *curr_master;
bus_bridge_pair *bbp;
- curr_master = dev_master;
- while(curr_master != NULL)
- {
- /* Does cpu_master master curr_master? */
- if(strcmp(cpu_master, curr_master) == 0) return 1; /* yes, cpu_masters cm */
+ if(strcmp(cpu_master, dev_master) == 0) return 1; /* cpu directly masters dev */
- /* No, cm is attached to a bridge? */
- bbp = bridges;
- while(bbp != NULL)
+ for(bbp = bridges; bbp != NULL; bbp=bbp->next)
+ {
+ if(strcmp(cpu_master, bbp->mastered_by) == 0 &&
+ is_bridged(bbp->bridges_to, dev_master, bridges))
{
- if(strcmp(bbp->bridges_to, curr_master) == 0)
- {
- curr_master = bbp->mastered_by;
- break;
- };
- bbp = bbp->next;
- };
- if(bbp == NULL) curr_master = NULL;
+ return 1; /* cpu masters dev via bridge */
+ }
};
return 0;
diff --git a/tools/cpu/nios2/clocks.c b/tools/cpu/nios2/clocks.c
index ac0f85cb4d..2c72770798 100644
--- a/tools/cpu/nios2/clocks.c
+++ b/tools/cpu/nios2/clocks.c
@@ -23,7 +23,6 @@ void add_clock_spec(struct ptf_item *pi, void *arg)
if(new_clock == NULL) return;
new_clock->freq = strtoul(pi->item[pi->level]->value, 0, 0);
- printf("freq = %lu (%s?)\n", new_clock->freq, pi->item[pi->level]->value);
new_clock->cfgname = NULL;
new_clock->name = pi->item[pi->level-1]->value;
diff --git a/tools/cpu/nios2/linkcmds.c b/tools/cpu/nios2/linkcmds.c
new file mode 100644
index 0000000000..46e0c05755
--- /dev/null
+++ b/tools/cpu/nios2/linkcmds.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ptf.h"
+#include "devices.h"
+#include "output.h" /* is_not_connected, fwrite_value, etc */
+#include "memory.h"
+#include "linkcmds.h"
+
+typedef struct
+{
+ FILE *file;
+ struct ptf *cfg, *cpu;
+ device_desc *devices;
+ memory_desc *memory;
+}
+lcmd_desc;
+
+void fwrite_lcmds_section(struct ptf_item *pi, void *arg)
+{
+ lcmd_desc *li = (lcmd_desc *)arg;
+ struct ptf *p;
+ struct ptf_item lpi;
+ char *location = NULL;
+ char *section_name = pi->item[1]->value;
+
+ if(section_name == 0)
+ {
+ fprintf(stderr, "Found a LINKER/SECTION without name, ignoring it.\n");
+ return;
+ };
+
+ p = ptf_find(pi->item[1]->sub, &lpi, item, "LOCATION", 0);
+ if(p)
+ {
+ location = p->value;
+ }
+ else
+ {
+ if(strcmp(section_name, "entry") == 0)
+ {
+ p = ptf_find(li->cpu, &lpi, item, "reset_slave", 0);
+ }
+ else if(strcmp(section_name, "exceptions") == 0)
+ {
+ p = ptf_find(li->cpu, &lpi, item, "exc_slave", 0);
+ };
+ if(p) location = p->value;
+ /* TODO: This doesn't work yet, parse full slave address, translate into our naming */
+ }
+
+ if(location == 0)
+ {
+ fprintf(stderr, "No LOCATION configured for section '%s'!\n", pi->item[1]->value);
+ return;
+ };
+
+ fprintf(li->file, " .%s :\n {\n", pi->item[1]->value);
+ fprintf(li->file, pi->item[2]->value);
+ fprintf(li->file, " } > %s\n\n", location);
+}
+
+void fwrite_linkcmds_file(FILE *file, struct ptf *cfg, struct ptf *cpu, device_desc *devices, memory_desc *memory)
+{
+ struct ptf *p;
+ struct ptf_item pi;
+ memory_desc *tmd;
+ lcmd_desc linfo;
+
+ struct ptf ptlink = { section, "LINKCMDS", 0, 0, 0 };
+ struct ptf ptleadtext = { item, "LEADTEXT", 0, 0, 0 };
+ struct ptf ptepilog = { item, "EPILOG", 0, 0, 0 };
+ struct ptf_item malihead = { 2, &ptlink, &ptleadtext };
+ struct ptf_item maliepil = { 2, &ptlink, &ptepilog };
+
+ struct ptf ptsect = { section, "SECTION", 0, 0, 0 };
+ struct ptf ptcmds = { item, "COMMANDS", 0, 0, 0 };
+ struct ptf ptstabs = { item, "STABS", 0, 0, 0 };
+ struct ptf_item malisect = { 3, &ptlink, &ptsect, &ptcmds };
+ struct ptf_item malistabs = { 2, &ptlink, &ptstabs };
+
+ linfo.cfg = cfg;
+ linfo.cpu = cpu;
+ linfo.file = file;
+ linfo.devices = devices;
+ linfo.memory = memory;
+
+ ptf_match(cfg, &malihead, fwrite_value, file);
+
+ fprintf(file, "MEMORY\n{\n");
+ for(tmd = linfo.memory; tmd; tmd = tmd->next)
+ {
+ fprintf(file, " %s : ORIGIN = 0x%08X, LENGTH = 0x%08X\n", tmd->dev->cfgname, tmd->base, tmd->size);
+ }
+ fprintf(file, "}\n\nSECTIONS\n{\n");
+
+ ptf_match(cfg, &malisect, fwrite_lcmds_section, &linfo);
+ ptf_match(cfg, &malistabs, fwrite_value, file);
+
+ for(tmd = linfo.memory; tmd; tmd = tmd->next)
+ {
+ fprintf(file, " %s : ORIGIN = 0x%08X, LENGTH = 0x%08X\n", tmd->dev->cfgname, tmd->base, tmd->size);
+ }
+
+
+ fprintf(file, "}\n\n");
+
+ ptf_match(cfg, &maliepil, fwrite_value, file);
+}
+
+
diff --git a/tools/cpu/nios2/linkcmds.h b/tools/cpu/nios2/linkcmds.h
new file mode 100644
index 0000000000..d2686d5e8e
--- /dev/null
+++ b/tools/cpu/nios2/linkcmds.h
@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#ifndef __LINKCMDS_H
+#define __LINKCMDS_H 1
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ptf.h"
+#include "devices.h"
+
+void fwrite_linkcmds_file(FILE *file, struct ptf *cfg, struct ptf *cpu, device_desc *devices, memory_desc *memory);
+
+#endif
+
+
diff --git a/tools/cpu/nios2/memory.c b/tools/cpu/nios2/memory.c
new file mode 100644
index 0000000000..0c35953354
--- /dev/null
+++ b/tools/cpu/nios2/memory.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "ptf.h"
+#include "devices.h"
+#include "memory.h"
+
+memory_desc *find_memory(device_desc *devices)
+{
+ struct ptf *p;
+ struct ptf_item pi;
+ memory_desc *tmd, *memory;
+
+ /********************************************************/
+ /* Check which of the devices are memory, sort by size */
+
+ if(devices)
+ {
+ struct ptf *p, *s;
+ struct ptf_item pi;
+ device_desc *dd;
+
+ memory = NULL;
+
+ for(dd = devices; dd; dd=dd->next)
+ {
+ p = ptf_find(dd->ptf->sub, &pi, item, "Is_Memory_Device", "1");
+ if(p != NULL && pi.level>0)
+ {
+ s = pi.item[pi.level-1];
+ p = ptf_find(s, &pi, item, "Base_Address", 0);
+ };
+
+ if(p != NULL)
+ {
+ tmd = (memory_desc*)malloc(sizeof(memory_desc));
+
+ if(tmd != NULL)
+ {
+ tmd->base = strtoul(p->value, 0, 0);
+
+ p = ptf_find(s, &pi, item, "Address_Span", 0);
+ if(p != 0)
+ {
+ tmd->size = strtoul(p->value, 0, 0);
+ }
+ else
+ {
+ tmd->size = 0;
+ p = ptf_find(s, &pi, item, "Address_Width", 0);
+ if(p) tmd->size = 1 << strtoul(p->value, 0, 0);
+ p = ptf_find(s, &pi, item, "Data_Width", 0);
+ if(p) tmd->size *= (strtoul(p->value, 0, 0) >> 3);
+ };
+
+ if(tmd->size == 0)
+ {
+ free(tmd);
+ }
+ else
+ {
+ tmd->dev = dd;
+
+ if(memory == NULL)
+ {
+ tmd->next = NULL;
+ memory = tmd;
+ }
+ else
+ {
+ if(tmd->size > memory->size)
+ {
+ tmd->next = memory;
+ memory = tmd;
+ }
+ else
+ {
+ memory_desc *uplink = memory;
+ while(uplink->next != NULL && uplink->next->size > tmd->size) uplink=uplink->next;
+ tmd->next = uplink->next;
+ uplink->next = tmd;
+ };
+ };
+ };
+ };
+ };
+ };
+ };
+
+ return memory;
+}
+
+
diff --git a/tools/cpu/nios2/memory.h b/tools/cpu/nios2/memory.h
new file mode 100644
index 0000000000..0fe364c4b9
--- /dev/null
+++ b/tools/cpu/nios2/memory.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ *
+ * $Id$
+ */
+
+#ifndef __MEMORY_H
+#define __MEMORY_H 1
+
+#include "devices.h"
+
+typedef struct memdsc
+{
+ unsigned long base;
+ unsigned long size;
+ device_desc *dev;
+ struct memdsc *next;
+}
+memory_desc;
+
+memory_desc *find_memory(device_desc *devices);
+
+#endif
+
+
diff --git a/tools/cpu/nios2/nios2gen.c b/tools/cpu/nios2/nios2gen.c
index fb271735ca..a62f0e3120 100644
--- a/tools/cpu/nios2/nios2gen.c
+++ b/tools/cpu/nios2/nios2gen.c
@@ -16,7 +16,14 @@
#include "bridges.h"
#include "clocks.h"
#include "devices.h"
+#include "memory.h"
#include "output.h"
+#include "linkcmds.h"
+
+#define NIOS2GEN_PACKAGE PACKAGE
+#define NIOS2GEN_VERSION VERSION
+
+#include "getopt.h"
/********************************************************/
@@ -64,29 +71,39 @@ void read_include_file(struct ptf_item *pi, void *arg)
p->next = next;
}
-void usage()
-{
-printf(
- "Usage: nios2gen [PTFFILE]\n"
- "Generate BSP data based upon PTF file from SOPC Builder.\n"
- "\n"
- "Please specify the name of a nios2gen PTF file that describes where to\n"
- "find the system description PTF from SOPC Builder on the command line.\n"
-);
-}
+/********************************************************/
-void version()
+void version(FILE *f)
{
-printf(
- "RTEMS/NIOS nios2gen\n"
+fprintf(f,
+ "nios2gen (" __DATE__ ")\n"
" Copyright (c) 2006 Kolja Waschk rtemsdev/ixo.de\n"
"\n"
" The license and distribution terms for this file may be\n"
" found in the file LICENSE in this distribution or at\n"
" http://www.rtems.com/license/LICENSE.\n"
+ , VERSION
);
}
+void usage (FILE *f, char *errmsg)
+{
+ char *info = "Purpose:\n Create RTEMS nios2 BSP configuration from Altera SOPC description\n";
+ if(errmsg) info=errmsg;
+ version(f);
+ fprintf(f,"\n%s\nUsage: nios2gen [OPTIONS] <SOPC PTF> [CONFIG PTF] [CONFIG PTF]...\n", info);
+ fprintf(f," -h --help Print help and exit\n");
+ fprintf(f," -V --version Print version and exit\n");
+ fprintf(f," -bFILENAME --bspheader=FILENAME Output BSP configuration header file (default='sopc.h')\n");
+ fprintf(f," -B --no-bspheader Do not output BSP configuration header file\n");
+ fprintf(f," -lFILENAME --linkcmds=FILENAME Output linker script (default='linkcmds')\n");
+ fprintf(f," -L --no-linkcmds Do not output linker script\n");
+ fprintf(f," -pFILENAME --parsed=FILENAME Output PTF contents as long list (default: don't)\n");
+ fprintf(f," -P --no-parsed Do not output PTF contents as long list\n");
+ fprintf(f," -q --quiet Do not print progress info to stdout\n\n");
+ fprintf(f,"Using \"-\" as the FILENAME means standard output (stdout).\n");
+}
+
/********************************************************/
int main(int argc, char *argv[])
@@ -96,69 +113,157 @@ int main(int argc, char *argv[])
device_desc *devices;
bus_bridge_pair *bridges;
clock_desc *clocks;
-
- if (argc<2)
+ memory_desc *memory;
+
+ int verbose = 1;
+ int output_order = 127;
+ char *parsed_filename = NULL;
+ int output_parsed = 0;
+ char *bspheader_filename = "sopc.h";
+ int output_bspheader = 1;
+ char *linkcmds_filename = "linkcmds";
+ int output_linkcmds = 2;
+
+ optarg = 0;
+ optind = 1;
+ opterr = 1;
+ optopt = '?';
+
+ if(argc > 126)
{
- usage();
- return -1;
+ usage(stderr,"Too many commandline arguments!\n");
+ return -1;
};
- if ( !strcmp(argv[1], "--help") || !strcmp(argv[1],"-?") ) {
- usage();
+ while(1)
+ {
+ int c, long_index = 0;
+ static char *optstring = "hVBb:Ll:Pp:q";
+
+ static struct option long_options[] =
+ {
+ { "help", 0, NULL, 'h' },
+ { "version", 0, NULL, 'V' },
+ { "no-bspheader", 0, NULL, 'B' },
+ { "bspheader", 1, NULL, 'b' },
+ { "no-linkcmds", 0, NULL, 'L' },
+ { "linkcmds", 1, NULL, 'l' },
+ { "no-parsed", 0, NULL, 'P' },
+ { "parsed", 1, NULL, 'p' },
+ { "quiet", 0, NULL, 'q' },
+ { NULL, 0, NULL, 0 }
+ };
+
+ c = getopt_long (argc, argv, optstring, long_options, &long_index);
+
+ if(c == -1) break; /* Exit from while(1) loop */
+
+ switch(c)
+ {
+ case 'q': /* Be quiet */
+ verbose = 0;
+ break;
+
+ case 'h': /* Print help and exit */
+ usage(stdout,NULL);
return 0;
- };
- if ( !strcmp(argv[1], "--version") ) {
- version();
+ case 'V': /* Print version and exit */
+ version(stdout);
return 0;
+
+ case 'B': /* Do not output BSP configuration header file */
+ output_bspheader = 0;
+ break;
+
+ case 'b': /* Output BSP configuration header file */
+ bspheader_filename = optarg;
+ output_bspheader = output_order;
+ output_order--;
+ break;
+
+ case 'L': /* Do not output linker script */
+ output_linkcmds = 0;
+ break;
+
+ case 'l': /* Output linker script */
+ linkcmds_filename = optarg;
+ output_linkcmds = output_order;
+ output_order--;
+ break;
+
+ case 'P': /* Do not output PTF contents */
+ output_parsed = 0;
+ break;
+
+ case 'p': /* Output PTF contents as long list */
+ parsed_filename = optarg;
+ output_parsed = output_order;
+ output_order--;
+ break;
+
+ case 0:
+ case '?':
+ return -1;
+
+ default:
+ fprintf(stderr, "%s: unknown option: %c\n", NIOS2GEN_PACKAGE, c);
+ };
};
- cfg = ptf_parse_file(argv[1]);
- if(cfg == NULL)
+ if(optind >= argc)
{
- fprintf(stderr, "Couldn't parse '%s'.\n", argv[1]);
+ usage(stderr,"No PTF specified!\n");
return -1;
};
- printf("Successfully read config PTF file %s.\n", argv[1]);
-
/********************************************************/
+ sopc = ptf_parse_file(argv[optind]);
+ if(sopc == NULL)
{
- struct ptf include_item = { item, "INCLUDE", 0, 0, 0 };
- struct ptf_item inc_file_spec = { 1, &include_item };
- ptf_match(cfg, &inc_file_spec, read_include_file, NULL);
- }
+ fprintf(stderr, "Could not parse system description PTF '%s'.\n", argv[optind]);
+ return -1;
+ };
+
+ if(verbose) printf("Successfully read SOPC PTF file %s.\n", argv[optind]);
/********************************************************/
-
- {
- struct ptf *p;
- struct ptf sopc_ptf_item = { item, "SOPC_PTF", 0, 0, 0 };
- struct ptf_item sopc_ptf_spec = { 1, &sopc_ptf_item };
- ptf_match(cfg, &sopc_ptf_spec, store_ptf_ptr, &p);
- if(p == NULL)
- {
- fprintf(stderr, "Missing 'SOPC_PTF' filename in %s!\n", argv[1]);
- return -1;
- };
+ cfg = NULL;
- sopc = ptf_parse_file(p->value);
- if(sopc == NULL)
+ for(optind++;optind<argc;optind++)
+ {
+ struct ptf *morecfg = ptf_parse_file(argv[optind]);
+
+ if(morecfg == NULL)
{
- fprintf(stderr, "Could not parse SOPC_PTF '%s'.\n", p->value);
- return -1;
+ fprintf(stderr, "Couldn't parse '%s'.\n", argv[optind]);
+ return -1;
};
+
+ if(verbose) printf("Successfully read config PTF file %s.\n", argv[optind]);
- printf("Successfully read SOPC PTF file %s.\n", p->value);
+ cfg = ptf_concat(cfg, morecfg);
};
/********************************************************/
+ /* Pull in include files specified in the configs; */
+ /* Only one level is read; included files are not */
+ /* checked for further INCLUDEs */
+
+ {
+ struct ptf include_item = { item, "INCLUDE", 0, 0, 0 };
+ struct ptf_item inc_file_spec = { 1, &include_item };
+ ptf_match(cfg, &inc_file_spec, read_include_file, NULL);
+ }
+
+ /********************************************************/
/* Find CPU */
- printf("Looking for usable CPUs...\n");
+ if(verbose) printf("Looking for usable CPUs...\n");
+ /* Check if a CPU has been specified in the config PTF */
{
struct ptf modules = { section, "MODULES", 0, 0, 0 };
struct ptf cpu_def = { item, "CPU", 0, 0, 0 };
@@ -167,6 +272,7 @@ int main(int argc, char *argv[])
ptf_match(cfg, &cpu_spec, store_ptf_ptr, &cpu);
};
+ /* Look for CPUs in system description PTF */
{
int cpu_count;
struct ptf system = { section, "SYSTEM", 0, 0, 0 };
@@ -180,73 +286,206 @@ int main(int argc, char *argv[])
if(cpu_count > 1)
{
- printf("There is more than one CPU. Please specify the one\n");
- printf("you want to use with this BSP in your config file.\n");
- printf("The available CPUs are named as follows:\n");
+ fprintf(stderr, "There is more than one CPU. Please specify the one\n");
+ fprintf(stderr, "you want to use with this BSP in your config file.\n");
+ fprintf(stderr, "The available CPUs are named as follows:\n");
ptf_match(sopc, &class_spec, printf_ptf_value, " %s\n");
return -1;
};
if(cpu_count == 0)
{
- printf("There is no NIOS2 cpu in the system.\n");
+ fprintf(stderr, "There is no NIOS2 cpu in the system.\n");
return -1;
}
};
- printf("Using NIOS II CPU '%s'.\n", cpu->value);
- printf("Only modules mastered by this CPU are considered now.\n");
+ if(verbose)
+ {
+ printf("Using NIOS II CPU '%s'.\n", cpu->value);
+ printf("Only modules mastered by this CPU are considered now.\n");
+ };
/********************************************************/
- /* Find clocks */
+ /* Find Bridges */
- printf("Looking for clock definitions...\n");
+ if(verbose) printf("Looking for bus bridges...\n");
- clocks = find_clocks(sopc, cfg);
+ bridges = find_bridges(sopc);
- if(clocks)
+ if(verbose)
{
- clock_desc *cs;
- for(cs = clocks; cs; cs = cs->next)
+ if(bridges)
+ {
+ bus_bridge_pair *bbp;
+ for(bbp = bridges; bbp; bbp=bbp->next)
+ {
+ printf("Found bridge: %s\n", bbp->mastered_by);
+ printf(" \\_%s\n", bbp->bridges_to);
+ };
+ }
+ else
{
- printf("Found clock: %s (%lu Hz)\n", cs->name, cs->freq);
+ printf("No bridges present.\n");
};
- }
- else
- {
- printf("No clocks present.\n");
};
/********************************************************/
- /* Find Bridges */
+ /* Find clocks */
- printf("Looking for bus bridges...\n");
+ if(verbose) printf("Looking for clock definitions...\n");
- bridges = find_bridges(sopc);
+ clocks = find_clocks(sopc, cfg);
- if(bridges)
+ if(verbose)
{
- bus_bridge_pair *bbp;
- for(bbp = bridges; bbp; bbp=bbp->next)
+ if(clocks)
+ {
+ clock_desc *cs;
+ for(cs = clocks; cs; cs = cs->next)
+ {
+ printf("Found clock \"%s\" (%lu Hz), naming it %s\n", cs->name, cs->freq, cs->cfgname);
+ };
+ }
+ else
{
- printf("Found bridge: %s\n", bbp->mastered_by);
- printf(" \\_%s\n", bbp->bridges_to);
+ printf("No clocks present.\n");
};
- }
- else
- {
- printf("No bridges present.\n");
};
/********************************************************/
/* Find other devices available to the selected CPU */
+ if(verbose) printf("Looking for devices...\n");
+
devices = find_devices(sopc, cfg, cpu, bridges);
- fwrite_header_file(stdout, cfg, devices, clocks);
+ if(verbose)
+ {
+ if(devices)
+ {
+ device_desc *dd;
+ for(dd = devices; dd; dd=dd->next)
+ {
+ printf("Found device \"%s\", naming it %s\n", dd->ptf->value, dd->cfgname);
+ };
+ }
+ else
+ {
+ printf("No devices present.\n");
+ };
+ };
+
+ /********************************************************/
+ /* Find out which devices are actually memory */
+
+ if(verbose) printf("Looking for memory...\n");
+
+ memory = find_memory(devices);
+
+ if(verbose)
+ {
+ if(memory)
+ {
+ memory_desc *md;
+ for(md = memory; md; md=md->next)
+ {
+ printf("Found memory in \"%s\", base=0x%08X, size=%lu bytes\n",
+ md->dev->cfgname,
+ md->base, md->size);
+ };
+ }
+ else
+ {
+ printf("None of the devices seems to provide memory?!\n");
+ };
+ };
+
+
+ /********************************************************/
+ /* Output files in the order they were specified
+ on the command line */
+
+ {
+ int i;
+ for(i=0;i<3;i++)
+ {
+ if(output_bspheader>0
+ && output_bspheader>=output_linkcmds
+ && output_bspheader>=output_parsed)
+ {
+ output_bspheader = 0;
+ if(bspheader_filename == NULL || (bspheader_filename[0]=='-' && bspheader_filename[1]==0))
+ {
+ fwrite_header_file(stdout, cfg, devices, clocks);
+ }
+ else
+ {
+ FILE *f = fopen(bspheader_filename, "w");
+ if(!f)
+ {
+ perror(bspheader_filename);
+ return -1;
+ }
+ else
+ {
+ fwrite_header_file(f, cfg, devices, clocks);
+ fclose(f);
+ }
+ }
+ };
+ if(output_linkcmds>0
+ && output_linkcmds>=output_bspheader
+ && output_linkcmds>=output_parsed)
+ {
+ output_linkcmds = 0;
+ if(linkcmds_filename == NULL || (linkcmds_filename[0]=='-' && linkcmds_filename[1]==0))
+ {
+ fwrite_linkcmds_file(stdout, cfg, cpu, devices, memory);
+ }
+ else
+ {
+ FILE *f = fopen(linkcmds_filename, "w");
+ if(!f)
+ {
+ perror(linkcmds_filename);
+ return -1;
+ }
+ else
+ {
+ fwrite_linkcmds_file(f, cfg, cpu, devices, memory);
+ fclose(f);
+ }
+ }
+ };
+ if(output_parsed>0
+ && output_parsed>=output_linkcmds
+ && output_parsed>=output_bspheader)
+ {
+ output_parsed = 0;
+ if(parsed_filename == NULL || (parsed_filename[0]=='-' && parsed_filename[1]==0))
+ {
+ ptf_printf(stdout, sopc, "");
+ }
+ else
+ {
+ FILE *f = fopen(parsed_filename, "w");
+ if(!f)
+ {
+ perror(parsed_filename);
+ return -1;
+ }
+ else
+ {
+ ptf_printf(f, sopc, "");
+ fclose(f);
+ }
+ }
+ };
+ }
+ };
- // ptf_printf(stdout, ptf, "");
- // ptf_printf(stdout, cfg, "");
+ if(verbose) printf("Done.\n");
return 0;
}
diff --git a/tools/cpu/nios2/output.c b/tools/cpu/nios2/output.c
index e957e430a7..d9f368d05c 100644
--- a/tools/cpu/nios2/output.c
+++ b/tools/cpu/nios2/output.c
@@ -150,11 +150,12 @@ void fwrite_header_file( FILE *file, struct ptf *cfg, device_desc *devices, cloc
struct ptf aclass = { section, "CLASS", 0, 0, 0 };
struct ptf_item matchaclass = { 1, &aclass };
- struct ptf header = { item, "HEADER", 0, 0, 0 };
- struct ptf_item matchheader = { 1, &header };
+ struct ptf bspsect = { section, "BSPHEADER", 0, 0, 0 };
+ struct ptf leadtext = { item, "LEADTEXT", 0, 0, 0 };
+ struct ptf_item matchleadtext = { 2, &bspsect, &leadtext };
struct ptf epilog = { item, "EPILOG", 0, 0, 0 };
- struct ptf_item matchepilog = { 1, &epilog };
+ struct ptf_item matchepilog = { 2, &bspsect, &epilog };
out_desc dinfo;
@@ -162,7 +163,7 @@ void fwrite_header_file( FILE *file, struct ptf *cfg, device_desc *devices, cloc
dinfo.clocks = clocks;
dinfo.devices = devices;
- ptf_match(cfg, &matchheader, fwrite_value, file);
+ ptf_match(cfg, &matchleadtext, fwrite_value, file);
if(clocks)
{
@@ -177,7 +178,7 @@ void fwrite_header_file( FILE *file, struct ptf *cfg, device_desc *devices, cloc
{
for(dinfo.dev = devices; dinfo.dev; dinfo.dev=dinfo.dev->next)
{
- fprintf(file, "\n");
+ /* fprintf(file, "\n#define SOPC_HAS_%s 1\n", dinfo.dev->cfgname); */
p = ptf_find(dinfo.dev->ptf, &pi, item, "class", 0);
if(p)
@@ -191,5 +192,4 @@ void fwrite_header_file( FILE *file, struct ptf *cfg, device_desc *devices, cloc
ptf_match(cfg, &matchepilog, fwrite_value, file);
}
-
diff --git a/tools/cpu/nios2/output.h b/tools/cpu/nios2/output.h
index 32aa0f7940..ad36629bf8 100644
--- a/tools/cpu/nios2/output.h
+++ b/tools/cpu/nios2/output.h
@@ -19,6 +19,7 @@
#include "clocks.h"
#include "devices.h"
+void fwrite_value(struct ptf_item *pi, void *arg);
void fwrite_header_file(FILE *file, struct ptf *cfg, device_desc *devices, clock_desc *clocks);
#endif
diff --git a/tools/cpu/nios2/ptf.c b/tools/cpu/nios2/ptf.c
index 43a38ea522..6f8943d0b3 100644
--- a/tools/cpu/nios2/ptf.c
+++ b/tools/cpu/nios2/ptf.c
@@ -9,6 +9,7 @@
*/
#include <stdio.h>
+#include <string.h>
#include <errno.h>
#include "ptf.h"
@@ -364,7 +365,7 @@ void parse_char(struct ptf_parser_state *state, int c)
default:
#if DEBUG&DEBUG_EXPECTATIONS
- printf("Expectation: %d (???)\n", state->expectation);
+ printf("Expectation: %d (?)\n", state->expectation);
#endif
parse_error(state, "Internal error: Unhandled state of expectation");
@@ -510,6 +511,44 @@ struct ptf *ptf_parse_file(char *filename)
/***************************************************************************/
+struct ptf *ptf_concat(struct ptf *a, struct ptf *b)
+{
+ struct ptf *leaf = a;
+
+ if(!a) return b;
+ if(!b) return a;
+
+ for(leaf = a; leaf->next != NULL; leaf = leaf->next);
+ leaf->next = b;
+ return a;
+}
+
+/***************************************************************************/
+
+void ptf_dump_ptf_item(FILE *f, struct ptf_item *pi)
+{
+ int i;
+ fprintf(f, "level=%d in %p\n", pi->level, pi);
+ for(i=pi->level;i>=0;i--)
+ {
+ if(pi->item[i] != NULL)
+ {
+ fprintf(f, " %d: %s name=%s value=%s\n",
+ i,
+ pi->item[i]->type == item ? "item":"section",
+ pi->item[i]->name,
+ pi->item[i]->value);
+ }
+ else
+ {
+ fprintf(f, " %d: NULL\n");
+ }
+ fflush(f);
+ }
+}
+
+/***************************************************************************/
+
void ptf_printf(FILE *s, struct ptf *tree, char *prefix)
{
struct ptf *leaf;
@@ -532,12 +571,12 @@ void ptf_printf(FILE *s, struct ptf *tree, char *prefix)
strcat(new_prefix, leaf->name);
if(leaf->value != NULL && leaf->value[0] != 0)
{
- strcat(new_prefix, "_");
+ strcat(new_prefix, ":");
strcat(new_prefix, leaf->value);
};
strcat(new_prefix, "/");
fputs(new_prefix, s);
- fputs("\r\n", s);
+ fputs("\n", s);
ptf_printf(s, leaf->sub, new_prefix);
break;
};
@@ -548,12 +587,19 @@ void ptf_printf(FILE *s, struct ptf *tree, char *prefix)
fputs(prefix, s);
fputs(leaf->name, s);
fputs(" = \"", s);
- for(c=leaf->value; *c; c++)
+ if(leaf->value == NULL)
{
- if(*c=='\\' || *c=='"') putc('\\', s);
- putc(*c, s);
- };
- fprintf(s, "\"\r\n");
+ fputs("(NULL)", s);
+ }
+ else
+ {
+ for(c=leaf->value; *c; c++)
+ {
+ if(*c=='\\' || *c=='"') putc('\\', s);
+ putc(*c, s);
+ };
+ }
+ fprintf(s, "\"\n");
break;
};
diff --git a/tools/cpu/nios2/ptf.h b/tools/cpu/nios2/ptf.h
index 50955cb4a5..3683b98163 100644
--- a/tools/cpu/nios2/ptf.h
+++ b/tools/cpu/nios2/ptf.h
@@ -40,8 +40,10 @@ struct ptf_item
typedef void (*ptf_match_action)(struct ptf_item *x, void *arg);
struct ptf *ptf_parse_file(char *filename);
+struct ptf *ptf_concat(struct ptf *a, struct ptf *b);
struct ptf *ptf_alloc_item(ptf_item_type t, char *name, char *value);
void ptf_printf(FILE *s, struct ptf *tree, char *prefix);
+void ptf_dump_ptf_item(FILE *s, struct ptf_item *pi);
struct ptf *ptf_find(
struct ptf *tree,
diff --git a/tools/cpu/nios2/sample.ptf b/tools/cpu/nios2/sample.ptf
new file mode 100644
index 0000000000..eb4cf7fea4
--- /dev/null
+++ b/tools/cpu/nios2/sample.ptf
@@ -0,0 +1,462 @@
+N2GCOMM = "=============== Header output settings ===========================";
+
+BSPHEADER
+{
+ LEADTEXT =
+"/* Autogenerated by nios2gen, (C) 2006 K. Waschk rtemsdev/ixo.de */
+
+#ifndef __SOPC_H
+#define __SOPC_H 1
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CLOCK_FREQ_REF(clock) clock ## _FREQ
+#define CLOCK_FREQ(x) CLOCK_FREQ_REF(x)
+
+";
+
+ EPILOG =
+"
+#ifdef __cplusplus
+}
+#endif
+#endif
+";
+}
+
+N2GCOMM = "=============== Class templates ==================================";
+
+CLASS altera_nios2
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SYSTEM_BUILDER_INFO
+ {
+ Clock_Source = "N2G_CLOCKREF_CLOCK";
+ }
+ SLAVE jtag_debug_module
+ {
+ SYSTEM_BUILDER_INFO { Base_Address = "BASE_ADDR"; }
+ }
+ WIZARD_SCRIPT_ARGUMENTS
+ {
+ cache_has_dcache = "HAS_DCACHE";
+ cache_has_icache = "HAS_ICACHE";
+ cache_dcache_size = "DCACHE_SIZE";
+ cache_icache_size = "ICACHE_SIZE";
+ cache_dcache_line_size = "DCACHE_LINE_SIZE";
+ cache_icache_line_size = "ICACHE_LINE_SIZE";
+ cache_dcache_bursts = "DCACHE_BURSTS";
+ cache_icache_burst_type = "ICACHE_BURST_TYPE";
+ hardware_multiply_present = "HAS_HWMULT";
+ }
+}
+
+CLASS altera_avalon_onchip_memory2
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ WIZARD_SCRIPT_ARGUMENTS
+ {
+ Writeable = "WRITEABLE";
+ dual_port = "DUAL_PORT";
+ Size_Value = "SIZE_VALUE";
+ Size_Multiple = "SIZE_MULTIPLE";
+ }
+ SYSTEM_BUILDER_INFO
+ {
+ Clock_Source = "N2G_CLOCKREF_CLOCK";
+ }
+ SLAVE s1
+ {
+ N2G_DEFINE_CONNECTED_PORT = "S1";
+
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "S1_BASE_ADDR";
+ Data_Width = "S1_DATA_WIDTH";
+ Address_Width = "S1_ADDR_WIDTH";
+ Address_Span = "S1_ADDR_SPAN";
+ }
+ }
+ SLAVE s2
+ {
+ N2G_DEFINE_CONNECTED_PORT = "S2";
+
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "S2_BASE_ADDR";
+ Data_Width = "S2_DATA_WIDTH";
+ Address_Width = "S2_ADDR_WIDTH";
+ Address_Span = "S2_ADDR_SPAN";
+ }
+ }
+}
+
+CLASS sram_256k_x_16_bit
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SLAVE sram
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ Data_Width = "DATA_WIDTH";
+ Address_Width = "ADDR_WIDTH";
+ Address_Span = "ADDR_SPAN";
+ }
+ }
+}
+
+CLASS altera_avalon_sysid
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SLAVE control_slave
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ }
+ }
+ WIZARD_SCRIPT_ARGUMENTS
+ {
+ id = "ID";
+ timestamp = "TIMESTAMP";
+ }
+}
+
+CLASS altera_avalon_timer
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SLAVE s1
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ IRQ_MASTER { IRQ_Number = "IRQ"; }
+ }
+ }
+ WIZARD_SCRIPT_ARGUMENTS
+ {
+ snapshot = "SNAPSHOT";
+ always_run = "ALWAYS_RUN";
+ mult = "MULT";
+ period = "PERIOD";
+ period_units = "PERIOD_UNITS";
+ fixed_period = "FIXED_PERIOD";
+ }
+ SYSTEM_BUILDER_INFO
+ {
+ Clock_Source = "N2G_CLOCKREF_CLOCK";
+ }
+}
+
+
+CLASS altera_avalon_uart
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SYSTEM_BUILDER_INFO
+ {
+ Clock_Source = "N2G_CLOCKREF_CLOCK";
+ }
+ WIZARD_SCRIPT_ARGUMENTS
+ {
+ use_cts_rts = "USE_CTS_RTS";
+ use_eop_register = "USE_EOP_REG";
+ }
+ SLAVE s1
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ IRQ_MASTER { IRQ_Number = "IRQ"; }
+ }
+ }
+}
+
+CLASS altera_avalon_jtag_uart
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SLAVE avalon_jtag_slave
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ IRQ_MASTER { IRQ_Number = "IRQ"; }
+ }
+ }
+}
+
+CLASS altera_avalon_pio
+{
+ N2G_DEFINE_IS_AVAILABLE = "1";
+
+ SYSTEM_BUILDER_INFO
+ {
+ Clock_Source = "N2G_CLOCKREF_CLOCK";
+ }
+ SLAVE
+ {
+ SYSTEM_BUILDER_INFO
+ {
+ Base_Address = "BASE_ADDR";
+ IRQ_MASTER { IRQ_Number = "IRQ"; }
+ }
+ }
+}
+
+N2GCOMM = "=============== Linkcmds output settings =========================";
+
+LINKCMDS
+{
+ LEADTEXT = "
+OUTPUT_FORMAT( "elf32-littlenios2",
+ "elf32-littlenios2",
+ "elf32-littlenios2" )
+OUTPUT_ARCH( nios2 )
+ENTRY( _start )
+"
+
+ SECTION entry
+ {
+ COMMANDS =
+" KEEP (*(.entry))
+";
+ }
+
+ SECTION exceptions
+ {
+ COMMANDS =
+" PROVIDE (__ram_exceptions_start = ABSOLUTE(.));
+ . = ALIGN(0x20);
+ *(.irq)
+ KEEP (*(.exceptions.entry.label));
+ KEEP (*(.exceptions.entry.user));
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