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libbacktrace: update to current version from GCC trunk

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This adds DWARF 5 support as well as an enhanced testsuite.

Patch assembled by Than McIntosh.
This commit is contained in:
Ian Lance Taylor
2019-12-23 18:55:51 -08:00
parent 5a99ff7fed
commit 559ab7cab4
62 changed files with 17898 additions and 3864 deletions
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10
mmapio.c
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@@ -1,5 +1,5 @@
/* mmapio.c -- File views using mmap.
Copyright (C) 2012-2018 Free Software Foundation, Inc.
Copyright (C) 2012-2019 Free Software Foundation, Inc.
Written by Ian Lance Taylor, Google.
Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,7 @@ POSSIBILITY OF SUCH DAMAGE. */
int
backtrace_get_view (struct backtrace_state *state ATTRIBUTE_UNUSED,
int descriptor, off_t offset, size_t size,
int descriptor, off_t offset, uint64_t size,
backtrace_error_callback error_callback,
void *data, struct backtrace_view *view)
{
@@ -60,6 +60,12 @@ backtrace_get_view (struct backtrace_state *state ATTRIBUTE_UNUSED,
off_t pageoff;
void *map;
if ((uint64_t) (size_t) size != size)
{
error_callback (data, "file size too large", 0);
return 0;
}
pagesize = getpagesize ();
inpage = offset % pagesize;
pageoff = offset - inpage;