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| author | Alan Modra <amodra@gmail.com> | 2020-03-10 10:46:17 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2020-03-10 11:05:07 +1030 |
| commit | 6b5e16ffd3e8886fa3fb90d63e3200fcc373848e (patch) | |
| tree | 37607be13de9a44bbaabf29c15e9668bca45a4d2 /bfd | |
| parent | 384f368958f2a5bb083660e58e5f8a010e6ad429 (diff) | |
| download | gdb-6b5e16ffd3e8886fa3fb90d63e3200fcc373848e.zip gdb-6b5e16ffd3e8886fa3fb90d63e3200fcc373848e.tar.gz gdb-6b5e16ffd3e8886fa3fb90d63e3200fcc373848e.tar.bz2 | |
PR25648, objcopy SIGSEGV in ihex_write_record
ihex_set_section_contents sorts records stored on the tdata.ihex_data
list by address, but ihex_write_object_contents went too far in
assuming they were not overlapping. This patch fixes the problem by
not assuming anything about addresses in ihex_write_object_contents.
PR 25648
* ihex.c (ihex_write_object_contents): Don't assume ordering of
addresses here. Remove dead code.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 6 | ||||
| -rw-r--r-- | bfd/ihex.c | 9 |
2 files changed, 10 insertions, 5 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index 371e505..67858c7 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,9 @@ +2020-03-10 Alan Modra <amodra@gmail.com> + + PR 25648 + * ihex.c (ihex_write_object_contents): Don't assume ordering of + addresses here. + 2020-03-09 Alan Modra <amodra@gmail.com> * wasm-module.c (wasm_scan): Sanity check file name length @@ -811,16 +811,15 @@ ihex_write_object_contents (bfd *abfd) if (count > CHUNK) now = CHUNK; - if (where > segbase + extbase + 0xffff) + if (where < extbase + || where - extbase < segbase + || where - extbase - segbase > 0xffff) { bfd_byte addr[2]; /* We need a new base address. */ - if (where <= 0xfffff) + if (extbase == 0 && where <= 0xfffff) { - /* The addresses should be sorted. */ - BFD_ASSERT (extbase == 0); - segbase = where & 0xf0000; addr[0] = (bfd_byte)(segbase >> 12) & 0xff; addr[1] = (bfd_byte)(segbase >> 4) & 0xff; |