diff options
| author | Christophe Lyon <christophe.lyon@linaro.org> | 2017-01-12 13:49:58 +0100 |
|---|---|---|
| committer | Yvan Roux <yvan.roux@linaro.org> | 2017-01-17 22:48:37 +0100 |
| commit | e2d9470e70c308801630031771c9d709efb4d6a1 (patch) | |
| tree | 142331e1af9bb28a135e6af861179f22bc47dccf | |
| parent | b8cc503ec1640707a7ae4fae7953c42a85dfa8e1 (diff) | |
gcc/
Backport from trunk r244320.
2017-01-11 Christophe Lyon <christophe.lyon@linaro.org>
PR target/78253
* config/arm/arm.c (legitimize_pic_address): Handle reference to
weak symbol.
(arm_assemble_integer): Likewise.
Change-Id: Ie610a0e65939a37b6a3bb49be23f3568b5e4bb93
| -rw-r--r-- | gcc/config/arm/arm.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c index 08e3f4cc499..1038ab11040 100644 --- a/gcc/config/arm/arm.c +++ b/gcc/config/arm/arm.c @@ -6863,9 +6863,13 @@ legitimize_pic_address (rtx orig, machine_mode mode, rtx reg) same segment as the GOT. Unfortunately, the flexibility of linker scripts means that we can't be sure of that in general, so assume that GOTOFF is never valid on VxWorks. */ + /* References to weak symbols cannot be resolved locally: they + may be overridden by a non-weak definition at link time. */ if ((GET_CODE (orig) == LABEL_REF - || (GET_CODE (orig) == SYMBOL_REF && - SYMBOL_REF_LOCAL_P (orig))) + || (GET_CODE (orig) == SYMBOL_REF + && SYMBOL_REF_LOCAL_P (orig) + && (SYMBOL_REF_DECL (orig) + ? !DECL_WEAK (SYMBOL_REF_DECL (orig)) : 1))) && NEED_GOT_RELOC && arm_pic_data_is_text_relative) insn = arm_pic_static_addr (orig, reg); @@ -22422,8 +22426,14 @@ arm_assemble_integer (rtx x, unsigned int size, int aligned_p) { /* See legitimize_pic_address for an explanation of the TARGET_VXWORKS_RTP check. */ + /* References to weak symbols cannot be resolved locally: + they may be overridden by a non-weak definition at link + time. */ if (!arm_pic_data_is_text_relative - || (GET_CODE (x) == SYMBOL_REF && !SYMBOL_REF_LOCAL_P (x))) + || (GET_CODE (x) == SYMBOL_REF + && (!SYMBOL_REF_LOCAL_P (x) + || (SYMBOL_REF_DECL (x) + ? DECL_WEAK (SYMBOL_REF_DECL (x)) : 0)))) fputs ("(GOT)", asm_out_file); else fputs ("(GOTOFF)", asm_out_file); |