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Cygwin: Remove reading of PE for section flags from dumper

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This commit is contained in:
Jon Turney 2020-07-04 15:51:14 +01:00
parent b40983eda1
commit 0302c69164
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GPG Key ID: C7C86F0370285C81
4 changed files with 3 additions and 114 deletions
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6
winsup/utils/Makefile.in
View File

@ -113,9 +113,9 @@ build_dumper := $(shell test -r "$(libbfd)" && echo 1)
ifdef build_dumper
CYGWIN_BINS += dumper.exe
dumper.o module_info.o parse_pe.o: CXXFLAGS += -I$(top_srcdir)/include
dumper.o parse_pe.o: dumper.h
dumper.exe: module_info.o parse_pe.o
dumper.o module_info.o: CXXFLAGS += -I$(top_srcdir)/include
dumper.o: dumper.h
dumper.exe: module_info.o
dumper.exe: CYGWIN_LDFLAGS += -lpsapi -lbfd -lintl -liconv -liberty ${ZLIB}
else
all: warn_dumper

2
winsup/utils/dumper.cc
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@ -281,8 +281,6 @@ dumper::add_module (LPVOID base_address)
new_entity->u.module.base_address = base_address;
new_entity->u.module.name = module_name;
parse_pe (module_name, excl_list);
deb_printf ("added module %p %s\n", base_address, module_name);
return 1;
}

2
winsup/utils/dumper.h
View File

@ -133,8 +133,6 @@ extern int deb_printf ( const char* format, ... );
extern char* psapi_get_module_name ( HANDLE hProcess, LPVOID BaseAddress );
extern int parse_pe ( const char* file_name, exclusion* excl_list );
extern BOOL verbose;
#endif

107
winsup/utils/parse_pe.cc
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@ -1,107 +0,0 @@
/* parse_pe.cc
Written by Egor Duda <deo@logos-m.ru>
This file is part of Cygwin.
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.
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 (file COPYING.dumper) 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. */
#define PACKAGE
#include <bfd.h>
#include <stdio.h>
#include <stdlib.h>
#include "dumper.h"
#ifndef bfd_get_section_size
#define bfd_get_section_size(sect) bfd_section_size(sect)
#endif
int
exclusion::add (LPBYTE mem_base, SIZE_T mem_size)
{
while (last >= size)
size += step;
region = (process_mem_region *) realloc (region, size * sizeof (process_mem_region));
if (region == NULL)
return 0;
region[last].base = mem_base;
region[last].size = mem_size;
last++;
return 1;
};
int
cmp_regions (const void *r1, const void *r2)
{
if (((process_mem_region *) r1)->base < ((process_mem_region *) r2)->base)
return -1;
if (((process_mem_region *) r1)->base > ((process_mem_region *) r2)->base)
return 1;
return 0;
}
int
exclusion::sort_and_check ()
{
qsort (region, last, sizeof (process_mem_region), &cmp_regions);
for (process_mem_region * p = region; p < region + last - 1; p++)
{
process_mem_region *q = p + 1;
if (q == p + 1)
continue;
if (p->base + size > q->base)
{
fprintf (stderr, "region error @ (%p + %zd) > %p\n", p->base, size, q->base);
return 0;
}
}
return 1;
}
static void
select_data_section (bfd * abfd, asection * sect, PTR obj)
{
exclusion *excl_list = (exclusion *) obj;
if ((sect->flags & (SEC_CODE | SEC_DEBUGGING)) &&
sect->vma && bfd_get_section_size (sect))
{
excl_list->add ((LPBYTE) sect->vma, (SIZE_T) bfd_get_section_size (sect));
deb_printf ("excluding section: %20s %08lx\n", sect->name,
bfd_get_section_size (sect));
}
}
int
parse_pe (const char *file_name, exclusion * excl_list)
{
if (file_name == NULL || excl_list == NULL)
return 0;
bfd *abfd = bfd_openr (file_name, "pei-i386");
if (abfd == NULL)
{
bfd_perror ("failed to open file");
return 0;
}
bfd_check_format (abfd, bfd_object);
bfd_map_over_sections (abfd, &select_data_section, (PTR) excl_list);
excl_list->sort_and_check ();
bfd_close (abfd);
return 1;
}