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| author | Alan Modra <amodra@gmail.com> | 2019-05-28 11:49:30 +0930 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2019-05-28 14:38:08 +0930 |
| commit | c83004d526c9f5e203926a979d405f7b720b9ede (patch) | |
| tree | f96259309cf3e9126aab52eb09c60f1d222280f7 /bfd/elf32-m68k.c | |
| parent | 586338b839d3f65d22eb3baef41f7395974f1f11 (diff) | |
| download | gdb-c83004d526c9f5e203926a979d405f7b720b9ede.zip gdb-c83004d526c9f5e203926a979d405f7b720b9ede.tar.gz gdb-c83004d526c9f5e203926a979d405f7b720b9ede.tar.bz2 | |
m68k linker segmentation faults
This doesn't fix the underlying bug, but an abort is better than a
segfault.
PR 24596
* elf32-m68k.c (elf_m68k_get_got_entry): Don't create a new
entry when MUST_FIND. Abort when MUST_FIND not found.
(elf_m68k_get_bfd2got_entry): Likewise.
(elf_m68k_relocate_section): Remove now useless assert.
Diffstat (limited to 'bfd/elf32-m68k.c')
| -rw-r--r-- | bfd/elf32-m68k.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/bfd/elf32-m68k.c b/bfd/elf32-m68k.c index e8d9ed5..4efac79 100644 --- a/bfd/elf32-m68k.c +++ b/bfd/elf32-m68k.c @@ -1519,14 +1519,18 @@ elf_m68k_get_got_entry (struct elf_m68k_got *got, } entry_.key_ = *key; - ptr = htab_find_slot (got->entries, &entry_, (howto != SEARCH - ? INSERT : NO_INSERT)); + ptr = htab_find_slot (got->entries, &entry_, + (howto == SEARCH || howto == MUST_FIND ? NO_INSERT + : INSERT)); if (ptr == NULL) { if (howto == SEARCH) /* Entry not found. */ return NULL; + if (howto == MUST_FIND) + abort (); + /* We're out of memory. */ bfd_set_error (bfd_error_no_memory); return NULL; @@ -1535,7 +1539,10 @@ elf_m68k_get_got_entry (struct elf_m68k_got *got, if (*ptr == NULL) /* We didn't find the entry and we're asked to create a new one. */ { - BFD_ASSERT (howto != MUST_FIND && howto != SEARCH); + if (howto == MUST_FIND) + abort (); + + BFD_ASSERT (howto != SEARCH); entry = bfd_alloc (elf_hash_table (info)->dynobj, sizeof (*entry)); if (entry == NULL) @@ -1750,14 +1757,18 @@ elf_m68k_get_bfd2got_entry (struct elf_m68k_multi_got *multi_got, } entry_.bfd = abfd; - ptr = htab_find_slot (multi_got->bfd2got, &entry_, (howto != SEARCH - ? INSERT : NO_INSERT)); + ptr = htab_find_slot (multi_got->bfd2got, &entry_, + (howto == SEARCH || howto == MUST_FIND ? NO_INSERT + : INSERT)); if (ptr == NULL) { if (howto == SEARCH) /* Entry not found. */ return NULL; + if (howto == MUST_FIND) + abort (); + /* We're out of memory. */ bfd_set_error (bfd_error_no_memory); return NULL; @@ -1766,7 +1777,10 @@ elf_m68k_get_bfd2got_entry (struct elf_m68k_multi_got *multi_got, if (*ptr == NULL) /* Entry was not found. Create new one. */ { - BFD_ASSERT (howto != MUST_FIND && howto != SEARCH); + if (howto == MUST_FIND) + abort (); + + BFD_ASSERT (howto != SEARCH); entry = ((struct elf_m68k_bfd2got_entry *) bfd_alloc (elf_hash_table (info)->dynobj, sizeof (*entry))); @@ -3562,12 +3576,9 @@ elf_m68k_relocate_section (bfd *output_bfd, BFD_ASSERT (sgot != NULL); if (got == NULL) - { - got = elf_m68k_get_bfd2got_entry (elf_m68k_multi_got (info), - input_bfd, MUST_FIND, - NULL)->got; - BFD_ASSERT (got != NULL); - } + got = elf_m68k_get_bfd2got_entry (elf_m68k_multi_got (info), + input_bfd, MUST_FIND, + NULL)->got; /* Get GOT offset for this symbol. */ elf_m68k_init_got_entry_key (&key_, h, input_bfd, r_symndx, |