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| author | Dave Anglin <dave.anglin@nrc.ca> | 2009-10-30 17:05:58 +0000 |
|---|---|---|
| committer | Dave Anglin <dave.anglin@nrc.ca> | 2009-10-30 17:05:58 +0000 |
| commit | b6cdf8aeedfdd676071a057e861d37a4e81be416 (patch) | |
| tree | f6fd9a94da3dd21a8314590da9c5b5206e7d58d3 | |
| parent | 698be22afe187e449bbfc42f0b664ff5b3c44ff8 (diff) | |
| download | gdb-b6cdf8aeedfdd676071a057e861d37a4e81be416.zip gdb-b6cdf8aeedfdd676071a057e861d37a4e81be416.tar.gz gdb-b6cdf8aeedfdd676071a057e861d37a4e81be416.tar.bz2 | |
* config/tc-hppa.c (pa_build_unwind_subspace): Replace start symbol
with local symbol.
| -rw-r--r-- | gas/ChangeLog | 5 | ||||
| -rw-r--r-- | gas/config/tc-hppa.c | 32 |
2 files changed, 35 insertions, 2 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index b9269cf..459697b 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,8 @@ +2009-10-30 John David Anglin <dave.anglin@nrc-cnrc.gc.ca> + + * config/tc-hppa.c (pa_build_unwind_subspace): Replace start symbol + with local symbol. + 2009-10-29 Sebastian Pop <sebastian.pop@amd.com> * config/tc-i386.c (build_modrm_byte): Do not swap REG and diff --git a/gas/config/tc-hppa.c b/gas/config/tc-hppa.c index 371f9f0..8823db2 100644 --- a/gas/config/tc-hppa.c +++ b/gas/config/tc-hppa.c @@ -5961,13 +5961,41 @@ pa_build_unwind_subspace (struct call_info *call_info) subsegT save_subseg; unsigned int unwind; int reloc; - char *p; + char *name, *p; + symbolS *symbolP; if ((bfd_get_section_flags (stdoutput, now_seg) & (SEC_ALLOC | SEC_LOAD | SEC_READONLY)) != (SEC_ALLOC | SEC_LOAD | SEC_READONLY)) return; + /* Replace the start symbol with a local symbol that will be reduced + to a section offset. This avoids problems with weak functions with + multiple definitions, etc. */ + name = xmalloc (strlen ("L$\001start_") + + strlen (S_GET_NAME (call_info->start_symbol)) + + 1); + strcpy (name, "L$\001start_"); + strcat (name, S_GET_NAME (call_info->start_symbol)); + + /* If we have a .procend preceded by a .exit, then the symbol will have + already been defined. In that case, we don't want another unwind + entry. */ + symbolP = symbol_find (name); + if (symbolP) + { + xfree (name); + return; + } + else + { + symbolP = symbol_new (name, now_seg, + S_GET_VALUE (call_info->start_symbol), frag_now); + gas_assert (symbolP); + S_CLEAR_EXTERNAL (symbolP); + symbol_table_insert (symbolP); + } + reloc = R_PARISC_SEGREL32; save_seg = now_seg; save_subseg = now_subseg; @@ -5993,7 +6021,7 @@ pa_build_unwind_subspace (struct call_info *call_info) /* Relocation info. for start offset of the function. */ md_number_to_chars (p, 0, 4); fix_new_hppa (frag_now, p - frag_now->fr_literal, 4, - call_info->start_symbol, (offsetT) 0, + symbolP, (offsetT) 0, (expressionS *) NULL, 0, reloc, e_fsel, 32, 0, 0); |