diff options
Diffstat (limited to 'gcc/config/darwin.c')
| -rw-r--r-- | gcc/config/darwin.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/gcc/config/darwin.c b/gcc/config/darwin.c index f1370b9d00a..670a57aa3d8 100644 --- a/gcc/config/darwin.c +++ b/gcc/config/darwin.c @@ -1275,5 +1275,34 @@ darwin_globalize_label (stream, name) default_globalize_label (stream, name); } +/* Output a difference of two labels that will be an assembly time + constant if the two labels are local. (.long lab1-lab2 will be + very different if lab1 is at the boundary between two sections; it + will be relocated according to the second section, not the first, + so one ends up with a difference between labels in different + sections, which is bad in the dwarf2 eh context for instance.) */ + +static int darwin_dwarf_label_counter; + +void +darwin_asm_output_dwarf_delta (file, size, lab1, lab2) + FILE *file; + int size ATTRIBUTE_UNUSED; + const char *lab1, *lab2; +{ + const char *p = lab1 + (lab1[0] == '*'); + int islocaldiff = (p[0] == 'L'); + + if (islocaldiff) + fprintf (file, "\t.set L$set$%d,", darwin_dwarf_label_counter); + else + fprintf (file, "\t%s\t", ".long"); + assemble_name (file, lab1); + fprintf (file, "-"); + assemble_name (file, lab2); + if (islocaldiff) + fprintf (file, "\n\t.long L$set$%d", darwin_dwarf_label_counter++); +} + #include "gt-darwin.h" |