diff options
Diffstat (limited to 'gcc/config/mips/mips.c')
| -rw-r--r-- | gcc/config/mips/mips.c | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 9100e998c76..b67210934ae 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -1245,6 +1245,9 @@ mips_symbol_binds_local_p (rtx x) static enum mips_symbol_type mips_classify_symbol (rtx x) { + if (TARGET_RTP_PIC) + return SYMBOL_GOT_DISP; + if (GET_CODE (x) == LABEL_REF) { if (TARGET_MIPS16) @@ -1385,6 +1388,7 @@ mips_symbolic_constant_p (rtx x, enum mips_symbol_type *symbol_type) case SYMBOL_TPREL: case SYMBOL_GOTTPREL: case SYMBOL_TLS: + case SYMBOL_HALF: return false; } gcc_unreachable (); @@ -1484,6 +1488,7 @@ mips_symbolic_address_p (enum mips_symbol_type symbol_type, case SYMBOL_64_HIGH: case SYMBOL_64_MID: case SYMBOL_64_LOW: + case SYMBOL_HALF: return true; } gcc_unreachable (); @@ -1630,6 +1635,7 @@ mips_symbol_insns (enum mips_symbol_type type) return (ABI_HAS_64BIT_SYMBOLS ? 6 : 2); case SYMBOL_SMALL_DATA: + case SYMBOL_HALF: return 1; case SYMBOL_CONSTANT_POOL: @@ -4886,6 +4892,9 @@ override_options (void) warning (0, "%<-G%> is incompatible with %<-mabicalls%>"); } + if (TARGET_VXWORKS_RTP && mips_section_threshold > 0) + warning (0, "-G and -mrtp are incompatible"); + /* mips_split_addresses is a half-way house between explicit relocations and the traditional assembler macros. It can split absolute 32-bit symbolic constants into a high/lo_sum @@ -5192,6 +5201,8 @@ override_options (void) mips_hi_relocs[SYMBOL_TPREL] = "%tprel_hi("; mips_lo_relocs[SYMBOL_TPREL] = "%tprel_lo("; + mips_lo_relocs[SYMBOL_HALF] = "%half("; + /* We don't have a thread pointer access instruction on MIPS16, or appropriate TLS relocations. */ if (TARGET_MIPS16) @@ -6573,6 +6584,9 @@ mips_current_loadgp_style (void) if (!TARGET_USE_GOT || cfun->machine->global_pointer == 0) return LOADGP_NONE; + if (TARGET_RTP_PIC) + return LOADGP_RTP; + if (TARGET_ABSOLUTE_ABICALLS) return LOADGP_ABSOLUTE; @@ -6589,7 +6603,7 @@ static GTY(()) rtx mips_gnu_local_gp; static void mips_emit_loadgp (void) { - rtx addr, offset, incoming_address; + rtx addr, offset, incoming_address, base, index; switch (mips_current_loadgp_style ()) { @@ -6611,6 +6625,14 @@ mips_emit_loadgp (void) emit_insn (gen_loadgp_blockage ()); break; + case LOADGP_RTP: + base = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (VXWORKS_GOTT_BASE)); + index = gen_rtx_SYMBOL_REF (Pmode, ggc_strdup (VXWORKS_GOTT_INDEX)); + emit_insn (gen_loadgp_rtp (base, index)); + if (!TARGET_EXPLICIT_RELOCS) + emit_insn (gen_loadgp_blockage ()); + break; + default: break; } @@ -7313,9 +7335,9 @@ mips_in_small_data_p (tree decl) if (TREE_CODE (decl) == STRING_CST || TREE_CODE (decl) == FUNCTION_DECL) return false; - /* We don't yet generate small-data references for -mabicalls. See related - -G handling in override_options. */ - if (TARGET_ABICALLS) + /* We don't yet generate small-data references for -mabicalls or + VxWorks RTP code. See the related -G handling in override_options. */ + if (TARGET_ABICALLS || TARGET_VXWORKS_RTP) return false; if (TREE_CODE (decl) == VAR_DECL && DECL_SECTION_NAME (decl) != 0) |