diff options
Diffstat (limited to 'gcc/config/mips/mips.c')
| -rw-r--r-- | gcc/config/mips/mips.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c index 242c2f76aa0..048e5a8a365 100644 --- a/gcc/config/mips/mips.c +++ b/gcc/config/mips/mips.c @@ -292,6 +292,7 @@ static void mips_output_mi_thunk (FILE *, tree, HOST_WIDE_INT, static int symbolic_expression_p (rtx); static void mips_select_rtx_section (enum machine_mode, rtx, unsigned HOST_WIDE_INT); +static void mips_function_rodata_section (tree); static bool mips_in_small_data_p (tree); static int mips_fpr_return_fields (tree, tree *); static bool mips_return_in_msb (tree); @@ -722,6 +723,8 @@ const struct mips_cpu_info mips_cpu_info_table[] = { #define TARGET_ASM_FUNCTION_EPILOGUE mips_output_function_epilogue #undef TARGET_ASM_SELECT_RTX_SECTION #define TARGET_ASM_SELECT_RTX_SECTION mips_select_rtx_section +#undef TARGET_ASM_FUNCTION_RODATA_SECTION +#define TARGET_ASM_FUNCTION_RODATA_SECTION mips_function_rodata_section #undef TARGET_SCHED_REORDER #define TARGET_SCHED_REORDER mips_sched_reorder @@ -6574,6 +6577,42 @@ mips_select_rtx_section (enum machine_mode mode, rtx x, } } +/* Implement TARGET_ASM_FUNCTION_RODATA_SECTION. + + The complication here is that, with the combination TARGET_ABICALLS + && !TARGET_GPWORD, jump tables will use absolute addresses, and should + therefore not be included in the read-only part of a DSO. Handle such + cases by selecting a normal data section instead of a read-only one. + The logic apes that in default_function_rodata_section. */ + +static void +mips_function_rodata_section (tree decl) +{ + if (!TARGET_ABICALLS || TARGET_GPWORD) + default_function_rodata_section (decl); + else if (decl && DECL_SECTION_NAME (decl)) + { + const char *name = TREE_STRING_POINTER (DECL_SECTION_NAME (decl)); + if (DECL_ONE_ONLY (decl) && strncmp (name, ".gnu.linkonce.t.", 16) == 0) + { + char *rname = ASTRDUP (name); + rname[14] = 'd'; + named_section_real (rname, SECTION_LINKONCE | SECTION_WRITE, decl); + } + else if (flag_function_sections && flag_data_sections + && strncmp (name, ".text.", 6) == 0) + { + char *rname = ASTRDUP (name); + memcpy (rname + 1, "data", 4); + named_section_flags (rname, SECTION_WRITE); + } + else + data_section (); + } + else + data_section (); +} + /* Implement TARGET_IN_SMALL_DATA_P. Return true if it would be safe to access DECL using %gp_rel(...)($gp). */ |