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- fix libdwfl regression (#462689)

This commit is contained in:
roland 2008-10-01 19:23:24 +00:00
parent b6004ce711
commit 9d47a05fbc
2 changed files with 68 additions and 9 deletions
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72
elfutils-0.137-fixes.patch
View File

@ -1,6 +1,11 @@
--- elfutils-0.137/libdwfl/ChangeLog
+++ elfutils-0.137/libdwfl/ChangeLog
@@ -1,3 +1,12 @@
@@ -1,3 +1,17 @@
+2008-09-29 Roland McGrath <roland@redhat.com>
+
+ * segment.c (insert): Must realloc DWFL->lookup_module here too.
+ (dwfl_report_segment): Clear DWFL->lookup_module before insert calls.
+
+2008-08-28 Roland McGrath <roland@redhat.com>
+
+ * segment.c (reify_segments): Fix last change.
@ -27,7 +32,35 @@
return nread;
--- elfutils-0.137/libdwfl/segment.c
+++ elfutils-0.137/libdwfl/segment.c
@@ -175,9 +175,17 @@ reify_segments (Dwfl *dwfl)
@@ -83,12 +83,26 @@ insert (Dwfl *dwfl, size_t i, GElf_Addr
int *nsegndx = realloc (dwfl->lookup_segndx, sizeof nsegndx[0] * n);
if (unlikely (nsegndx == NULL))
{
- free (naddr);
+ if (naddr != dwfl->lookup_addr)
+ free (naddr);
return true;
}
dwfl->lookup_alloc = n;
dwfl->lookup_addr = naddr;
dwfl->lookup_segndx = nsegndx;
+
+ if (dwfl->lookup_module != NULL)
+ {
+ /* Make sure this array is big enough too. */
+ Dwfl_Module **old = dwfl->lookup_module;
+ dwfl->lookup_module = realloc (dwfl->lookup_module,
+ sizeof dwfl->lookup_module[0] * n);
+ if (unlikely (dwfl->lookup_module == NULL))
+ {
+ free (old);
+ return true;
+ }
+ }
}
if (unlikely (i < dwfl->lookup_elts))
@@ -175,9 +189,17 @@ reify_segments (Dwfl *dwfl)
return true;
++idx;
}
@ -47,6 +80,32 @@
/* The module ends in the middle of this segment. Split it. */
&& unlikely (insert (dwfl, idx + 1,
end, dwfl->lookup_addr[idx + 1], -1)))
@@ -261,6 +283,12 @@ dwfl_report_segment (Dwfl *dwfl, int ndx
phdr->p_align < dwfl->segment_align))
dwfl->segment_align = phdr->p_align;
+ if (unlikely (dwfl->lookup_module != NULL))
+ {
+ free (dwfl->lookup_module);
+ dwfl->lookup_module = NULL;
+ }
+
GElf_Addr start = segment_start (dwfl, bias + phdr->p_vaddr);
GElf_Addr end = segment_end (dwfl, bias + phdr->p_vaddr + phdr->p_memsz);
@@ -289,12 +317,6 @@ dwfl_report_segment (Dwfl *dwfl, int ndx
dwfl->lookup_tail_offset = end - bias - phdr->p_vaddr + phdr->p_offset;
dwfl->lookup_tail_ndx = ndx + 1;
- if (unlikely (dwfl->lookup_module != NULL))
- {
- free (dwfl->lookup_module);
- dwfl->lookup_module = NULL;
- }
-
return ndx;
}
INTDEF (dwfl_report_segment)
--- elfutils-0.137/libelf/ChangeLog
+++ elfutils-0.137/libelf/ChangeLog
@@ -1,3 +1,9 @@
@ -61,12 +120,9 @@
* Makefile.am (libelf_so_LDLIBS): New variable.
--- elfutils-0.137/libelf/elf_begin.c
+++ elfutils-0.137/libelf/elf_begin.c
@@ -110,8 +110,14 @@ get_shnum (void *map_address, unsigned c
} ehdr_mem;
@@ -111,7 +111,11 @@ get_shnum (void *map_address, unsigned c
bool is32 = e_ident[EI_CLASS] == ELFCLASS32;
+ // e_shnum shoff
+
/* Make the ELF header available. */
- if (e_ident[EI_DATA] == MY_ELFDATA)
+ if (e_ident[EI_DATA] == MY_ELFDATA
@ -77,7 +133,7 @@
ehdr.p = e_ident;
else
{
@@ -130,8 +136,11 @@ get_shnum (void *map_address, unsigned c
@@ -130,8 +134,11 @@ get_shnum (void *map_address, unsigned c
else
memcpy (&ehdr_mem, e_ident, sizeof (Elf32_Ehdr));
@ -91,7 +147,7 @@
}
else
{
@@ -143,8 +152,11 @@ get_shnum (void *map_address, unsigned c
@@ -143,8 +150,11 @@ get_shnum (void *map_address, unsigned c
else
memcpy (&ehdr_mem, e_ident, sizeof (Elf64_Ehdr));

5
elfutils.spec
View File

@ -1,5 +1,5 @@
%define eu_version 0.137
%define eu_release 2
%define eu_release 3
%if %{?_with_compat:1}%{!?_with_compat:0}
%define compat 1
@ -265,6 +265,9 @@ rm -rf ${RPM_BUILD_ROOT}
%{_libdir}/libelf.a
%changelog
* Wed Oct 1 2008 Roland McGrath <roland@redhat.com> - 0.137-3
- fix libdwfl regression (#462689)
* Thu Aug 28 2008 Roland McGrath <roland@redhat.com> - 0.137-2
- Update to 0.137
- libdwfl: bug fixes; new segment interfaces;