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| author | Stephen Casner <casner@acm.org> | 2020-04-20 12:49:50 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2020-04-20 12:49:50 +0100 |
| commit | 23c8270e9dc60bb78c1800b7deedc117efdb9e92 (patch) | |
| tree | eef82324bea47060d20bdfc2377f8a7cc7ff3c24 /bfd | |
| parent | c2e5c986b3825c16a578e5bf84aa412eec276dc7 (diff) | |
| download | gdb-23c8270e9dc60bb78c1800b7deedc117efdb9e92.zip gdb-23c8270e9dc60bb78c1800b7deedc117efdb9e92.tar.gz gdb-23c8270e9dc60bb78c1800b7deedc117efdb9e92.tar.bz2 | |
When bfd/pdp11.c was copied from bfd/aoutx.h, the #defines for external symbol types N_TEXT etc. were #undef'd and then #define'd with new values. But N_STAB was not changed even though the new value for N_EXT overlapped with it. This caused aout_link_write_symbols() to treat global symbols referenced in the source but defined in a linker script as undefined.
Separately, in translate_symbol_table() the 16-bit symbol values were sign extended to unsigned long (e.g., 64 bits) when they really should be treated as unsigned so the value remains 16 bits.
PR 25828
* pdp11.c (N_STAB): Modify value to avoid conflict with N_EXT
causing globals from linker script to be treated as debug symbols.
(translate_symbol_table): Don't sign-extend symbol values from 16
to 64 bits in nm output.
Diffstat (limited to 'bfd')
| -rw-r--r-- | bfd/ChangeLog | 7 | ||||
| -rw-r--r-- | bfd/pdp11.c | 4 |
2 files changed, 10 insertions, 1 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index f88e883..76f5630 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,3 +1,10 @@ +2020-04-20 Stephen Casner <casner@acm.org> + + * pdp11.c (N_STAB): Modify value to avoid conflict with N_EXT + causing globals from linker script to be treated as debug symbols. + (translate_symbol_table): Don't sign-extend symbol values from 16 + to 64 bits in nm output. + 2020-04-20 Alan Modra <amodra@gmail.com> * elf64-ppc.c (ppc64_elf_size_stubs): Strip relbrlt too. diff --git a/bfd/pdp11.c b/bfd/pdp11.c index 1f8c406..5ad9523 100644 --- a/bfd/pdp11.c +++ b/bfd/pdp11.c @@ -160,6 +160,7 @@ static bfd_boolean MY(write_object_contents) (bfd *); #undef N_REG #undef N_FN #undef N_EXT +#undef N_STAB #define N_TYPE 0x1f /* Type mask. */ #define N_UNDF 0x00 /* Undefined. */ #define N_ABS 0x01 /* Absolute. */ @@ -169,6 +170,7 @@ static bfd_boolean MY(write_object_contents) (bfd *); #define N_REG 0x14 /* Register symbol. */ #define N_FN 0x1f /* File name. */ #define N_EXT 0x20 /* External flag. */ +#define N_STAB 0xc0 /* Not relevant; modified aout64.h's 0xe0 to avoid N_EXT. */ #define RELOC_SIZE 2 @@ -1501,7 +1503,7 @@ NAME (aout, translate_symbol_table) (bfd *abfd, else return FALSE; - in->symbol.value = GET_SWORD (abfd, ext->e_value); + in->symbol.value = GET_WORD (abfd, ext->e_value); /* TODO: is 0 a safe value here? */ in->desc = 0; in->other = 0; |