Darwin's linker doesn't like text section relocations (they require special
enabling).
At least, the Fortran FE seems to generate cases where the initialiser for a
pointer
constant can need a relocation. We can handle this by special-casing
SECCAT_RODATA when the relocation is present by placing the constant in the
.const_data section.
tested on x86_64-darwin16, applied to mainline,
thanks
Iain
gcc/ChangeLog:
2019-10-05 Iain Sandoe <i...@sandoe.co.uk>
PR target/59888
* config/darwin.c (darwin_rodata_section): Add relocation flag,
choose const_data section for constants with relocations.
(machopic_select_section): Pass relocation flag to
darwin_rodata_section ().
diff --git a/gcc/config/darwin.c b/gcc/config/darwin.c
index 3a1be5a29b..2fb9c56c72 100644
--- a/gcc/config/darwin.c
+++ b/gcc/config/darwin.c
@@ -1251,12 +1251,13 @@ darwin_mark_decl_preserved (const char *name)
}
static section *
-darwin_rodata_section (int use_coal, bool zsize)
+darwin_rodata_section (int use_coal, bool zsize, int reloc)
{
return (use_coal
? darwin_sections[const_coal_section]
: (zsize ? darwin_sections[zobj_const_section]
- : darwin_sections[const_section]));
+ : reloc ? darwin_sections[const_data_section]
+ : darwin_sections[const_section]));
}
static section *
@@ -1549,7 +1550,7 @@ machopic_select_section (tree decl,
case SECCAT_RODATA:
case SECCAT_SRODATA:
- base_section = darwin_rodata_section (use_coal, zsize);
+ base_section = darwin_rodata_section (use_coal, zsize, reloc);
break;
case SECCAT_RODATA_MERGE_STR:
