PATCH for bfd in binutils-2.9.1/gdb-4.17

Manfred Hollstein
1999-02-23T08:33:00Z

This small patch fixes a bug I observed while running gdb-4.17
on a mips-sgi-irix5.3 system. Since the debuggee's debug info
was larger than the system's virtual memory was able to provide,
the "goto error_return" in bfd/elf32-mips.c:_bfd_mips_elf_read_ecoff_info
got executed, which in turn tries to cleanup allocated memory.
Unfortunately, it's simply checking probably unitialized
memory to decide whether it should.

Later,
manfred

bfd/ChangeLog:

1999-02-23 Manfred Hollstein <manfred@s-direktnet.de>

* elf32-mips.c (_bfd_mips_elf_read_ecoff_info): Ensure only actually
allocated members will be free'ed at error_return.

diff -rup -x CVS -x RCS -x *.o -x *.info* -x *.html* -x *.elc -x *.dvi -x *.orig -x *~ -x version.el binutils-2.9.1.orig/bfd/elf32-mips.c binutils-2.9.1/bfd/elf32-mips.c
--- binutils-2.9.1.orig/bfd/elf32-mips.c Fri May 1 17:48:09 1998
+++ binutils-2.9.1/bfd/elf32-mips.c Tue Feb 23 16:27:52 1999
@@ -2904,6 +2904,20 @@ _bfd_mips_elf_read_ecoff_info (abfd, sec

swap = get_elf_backend_data (abfd)->elf_backend_ecoff_debug_swap;

+ /* Ensure only actually allocated members will be free'ed at
+ error_return. */
+ debug->line = NULL;
+ debug->external_dnr = NULL;
+ debug->external_pdr = NULL;
+ debug->external_sym = NULL;
+ debug->external_opt = NULL;
+ debug->external_aux = NULL;
+ debug->ss = NULL;
+ debug->ssext = NULL;
+ debug->external_fdr = NULL;
+ debug->external_rfd = NULL;
+ debug->external_ext = NULL;
+
ext_hdr = (char *) bfd_malloc ((size_t) swap->external_hdr_size);
if (ext_hdr == NULL && swap->external_hdr_size != 0)
goto error_return;