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Diffstat (limited to 'gcc/defaults.h')
| -rw-r--r-- | gcc/defaults.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/defaults.h b/gcc/defaults.h index 9ac1afc..9d82960 100644 --- a/gcc/defaults.h +++ b/gcc/defaults.h @@ -166,6 +166,27 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA #endif #endif +/* This is how we tell the assembler that a symbol is a weak alias to + another symbol that doesn't require the other symbol to be defined. + Uses of the former will turn into weak uses of the latter, i.e., + uses that, in case the latter is undefined, will not cause errors, + and will add it to the symbol table as weak undefined. However, if + the latter is referenced directly, a strong reference prevails. */ +#ifndef ASM_OUTPUT_WEAKREF +#if defined HAVE_GAS_WEAKREF +#define ASM_OUTPUT_WEAKREF(FILE, NAME, VALUE) \ + do \ + { \ + fprintf ((FILE), "\t.weakref\t"); \ + assemble_name ((FILE), (NAME)); \ + fprintf ((FILE), ","); \ + assemble_name ((FILE), (VALUE)); \ + fprintf ((FILE), "\n"); \ + } \ + while (0) +#endif +#endif + /* How to emit a .type directive. */ #ifndef ASM_OUTPUT_TYPE_DIRECTIVE #if defined TYPE_ASM_OP && defined TYPE_OPERAND_FMT |