X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=ld%2Fmri.c;h=5749870ef1ea73344bd2a53c1f7e5cfe1dd379eb;hb=58098fd779cca68f6a3fee6c289da2e352ccd7a8;hp=fd2edcf14bcf9a727defb8d466fe3fd1f2f7a29a;hpb=3d2b83ea49dc76204b0b068a56d8c9c37075b0d5;p=binutils-gdb.git diff --git a/ld/mri.c b/ld/mri.c index fd2edcf14bc..5749870ef1e 100644 --- a/ld/mri.c +++ b/ld/mri.c @@ -1,69 +1,316 @@ -/* Copyright (C) 1991 Free Software Foundation, Inc. - -This file is part of GLD, the Gnu Linker. +/* mri.c -- handle MRI style linker scripts + Copyright (C) 1991-2022 Free Software Foundation, Inc. + Contributed by Steve Chamberlain . -GLD 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 1, or (at your option) -any later version. + This file is part of the GNU Binutils. -GLD 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. + This program 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 of the License, or + (at your option) any later version. -You should have received a copy of the GNU General Public License -along with GLD; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -/* This bit does the tree decoration when MRI style link scripts are parsed */ -/* - contributed by Steve Chamberlain - sac@cygnus.com - -*/ +/* This bit does the tree decoration when MRI style link scripts + are parsed. */ +#include "sysdep.h" #include "bfd.h" -#include "sysdep.h" +#include "bfdlink.h" +#include "ctf-api.h" +#include "ld.h" +#include "ldexp.h" #include "ldlang.h" +#include "ldmisc.h" #include "mri.h" -#include "ldexp.h" +#include +#include "libiberty.h" + +struct section_name_struct { + struct section_name_struct *next; + const char *name; + const char *alias; + etree_type *vma; + etree_type *align; + etree_type *subalign; + int ok_to_load; +}; + +static unsigned int symbol_truncate = 10000; +static etree_type *base; /* Relocation base - or null */ + +static struct section_name_struct *order; +static struct section_name_struct *only_load; +static struct section_name_struct *address; +static struct section_name_struct *alias; + +static struct section_name_struct *alignment; +static struct section_name_struct *subalignment; + +static struct section_name_struct ** +lookup (const char *name, struct section_name_struct **list) +{ + struct section_name_struct **ptr = list; + + while (*ptr) + { + if (strcmp (name, (*ptr)->name) == 0) + /* If this is a match, delete it, we only keep the last instance + of any name. */ + *ptr = (*ptr)->next; + else + ptr = &((*ptr)->next); + } + + *ptr = (struct section_name_struct *) + xmalloc (sizeof (struct section_name_struct)); + return ptr; +} + +static void +mri_add_to_list (struct section_name_struct **list, + const char *name, + etree_type *vma, + const char *zalias, + etree_type *align, + etree_type *subalign) +{ + struct section_name_struct **ptr = lookup (name, list); + + (*ptr)->name = name; + (*ptr)->vma = vma; + (*ptr)->next = NULL; + (*ptr)->ok_to_load = 0; + (*ptr)->alias = zalias; + (*ptr)->align = align; + (*ptr)->subalign = subalign; +} + +void +mri_output_section (const char *name, etree_type *vma) +{ + mri_add_to_list (&address, name, vma, 0, 0, 0); +} + +/* If any ABSOLUTE are in the script, only load those files + marked thus. */ + +void +mri_only_load (const char *name) +{ + mri_add_to_list (&only_load, name, 0, 0, 0, 0); +} + +void +mri_base (etree_type *exp) +{ + base = exp; +} + +static int done_tree = 0; + +void +mri_draw_tree (void) +{ + if (done_tree) + return; + + /* Now build the statements for the ldlang machine. */ + + /* Attach the addresses of any which have addresses, + and add the ones not mentioned. */ + if (address != NULL) + { + struct section_name_struct *alist; + struct section_name_struct *olist; + + if (order == NULL) + order = address; + + for (alist = address; + alist != NULL; + alist = alist->next) + { + int done = 0; + + for (olist = order; done == 0 && olist != NULL; olist = olist->next) + { + if (strcmp (alist->name, olist->name) == 0) + { + olist->vma = alist->vma; + done = 1; + } + } + + if (!done) + { + /* Add this onto end of order list. */ + mri_add_to_list (&order, alist->name, alist->vma, 0, 0, 0); + } + } + } + + /* If we're only supposed to load a subset of them in, then prune + the list. */ + if (only_load != NULL) + { + struct section_name_struct *ptr1; + struct section_name_struct *ptr2; + + if (order == NULL) + order = only_load; + + /* See if this name is in the list, if it is then we can load it. */ + for (ptr1 = only_load; ptr1; ptr1 = ptr1->next) + for (ptr2 = order; ptr2; ptr2 = ptr2->next) + if (strcmp (ptr2->name, ptr1->name) == 0) + ptr2->ok_to_load = 1; + } + else + { + /* No only load list, so everything is ok to load. */ + struct section_name_struct *ptr; + + for (ptr = order; ptr; ptr = ptr->next) + ptr->ok_to_load = 1; + } + + /* Create the order of sections to load. */ + if (order != NULL) + { + /* Been told to output the sections in a certain order. */ + struct section_name_struct *p = order; + + while (p) + { + struct section_name_struct *aptr; + etree_type *align = 0; + etree_type *subalign = 0; + struct wildcard_list *tmp; + + /* See if an alignment has been specified. */ + for (aptr = alignment; aptr; aptr = aptr->next) + if (strcmp (aptr->name, p->name) == 0) + align = aptr->align; + + for (aptr = subalignment; aptr; aptr = aptr->next) + if (strcmp (aptr->name, p->name) == 0) + subalign = aptr->subalign; + + if (base == 0) + base = p->vma ? p->vma : exp_nameop (NAME, "."); + + lang_enter_output_section_statement (p->name, base, + p->ok_to_load ? normal_section : noload_section, 0, + align, subalign, NULL, 0, 0); + base = 0; + tmp = (struct wildcard_list *) xmalloc (sizeof *tmp); + tmp->next = NULL; + tmp->spec.name = p->name; + tmp->spec.exclude_name_list = NULL; + tmp->spec.sorted = none; + tmp->spec.section_flag_list = NULL; + lang_add_wild (NULL, tmp, false); + + /* If there is an alias for this section, add it too. */ + for (aptr = alias; aptr; aptr = aptr->next) + if (strcmp (aptr->alias, p->name) == 0) + { + tmp = (struct wildcard_list *) xmalloc (sizeof *tmp); + tmp->next = NULL; + tmp->spec.name = aptr->name; + tmp->spec.exclude_name_list = NULL; + tmp->spec.sorted = none; + tmp->spec.section_flag_list = NULL; + lang_add_wild (NULL, tmp, false); + } + + lang_leave_output_section_statement (0, "*default*", NULL, NULL); + + p = p->next; + } + } + + done_tree = 1; +} + +void +mri_load (const char *name) +{ + base = 0; + lang_add_input_file (name, lang_input_file_is_file_enum, NULL); +} void -DEFUN(mri_output_section, (name, vma), - CONST char *name AND - etree_type *vma) +mri_order (const char *name) +{ + mri_add_to_list (&order, name, 0, 0, 0, 0); +} +void +mri_alias (const char *want, const char *is, int isn) { - lang_output_section_statement_type *os; + if (!is) + { + char buf[20]; - os = lang_output_section_statement_lookup(name); + /* Some sections are digits. */ + sprintf (buf, "%d", isn); - if (os->addr_tree == (etree_type *)NULL) { - os->addr_tree = vma; - } + is = xstrdup (buf); - os->flags = 0; - os->block_value = 0; - } + if (is == NULL) + abort (); + } -/* if any ABSOLUTE are in the script, only load those files -marked thus */ + mri_add_to_list (&alias, is, 0, want, 0, 0); +} -void DEFUN(mri_only_load,(name), CONST char *name) - { +void +mri_name (const char *name) +{ + lang_add_output (name, 1); +} +void +mri_format (const char *name) +{ + if (strcmp (name, "S") == 0) + lang_add_output_format ("srec", NULL, NULL, 1); + else + einfo (_("%F%P: unknown format type %s\n"), name); +} +void +mri_public (const char *name, etree_type *exp) +{ + lang_add_assignment (exp_assign (name, exp, false)); } +void +mri_align (const char *name, etree_type *exp) +{ + mri_add_to_list (&alignment, name, 0, 0, exp, 0); +} void -DEFUN(mri_load,(name), - CONST char *name) +mri_alignmod (const char *name, etree_type *exp) { + mri_add_to_list (&subalignment, name, 0, 0, 0, exp); +} - lang_add_input_file(name, lang_input_file_is_file_enum, (char *)NULL); +void +mri_truncate (unsigned int exp) +{ + symbol_truncate = exp; }