diff options
Diffstat (limited to 'gas/config/tc-i386.c')
| -rw-r--r-- | gas/config/tc-i386.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gas/config/tc-i386.c b/gas/config/tc-i386.c index c4ba13d..bbc0969 100644 --- a/gas/config/tc-i386.c +++ b/gas/config/tc-i386.c @@ -524,6 +524,11 @@ static enum x86_elf_abi x86_elf_abi = I386_ABI; static int use_big_obj = 0; #endif +#if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) +/* 1 if not generating code for a shared library. */ +static int no_shared = 0; +#endif + /* 1 for intel syntax, 0 if att syntax. */ static int intel_syntax = 0; @@ -8785,6 +8790,10 @@ elf_symbol_resolved_in_segment_p (symbolS *fr_symbol) /* Symbol may be weak or local. */ return !S_IS_WEAK (fr_symbol); + /* Non-weak symbols won't be preempted. */ + if (no_shared) + return 1; + /* Global symbols with default visibility in a shared library may be preempted by another definition. */ return ELF_ST_VISIBILITY (S_GET_OTHER (fr_symbol)) != STV_DEFAULT; @@ -9484,6 +9493,7 @@ const char *md_shortopts = "qn"; #define OPTION_MBIG_OBJ (OPTION_MD_BASE + 18) #define OPTION_OMIT_LOCK_PREFIX (OPTION_MD_BASE + 19) #define OPTION_MEVEXRCIG (OPTION_MD_BASE + 20) +#define OPTION_MNO_SHARED (OPTION_MD_BASE + 21) struct option md_longopts[] = { @@ -9494,6 +9504,7 @@ struct option md_longopts[] = #endif #if defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) {"x32", no_argument, NULL, OPTION_X32}, + {"mno-shared", no_argument, NULL, OPTION_MNO_SHARED}, #endif {"divide", no_argument, NULL, OPTION_DIVIDE}, {"march", required_argument, NULL, OPTION_MARCH}, @@ -9554,6 +9565,10 @@ md_parse_option (int c, char *arg) /* -s: On i386 Solaris, this tells the native assembler to use .stab instead of .stab.excl. We always use .stab anyhow. */ break; + + case OPTION_MNO_SHARED: + no_shared = 1; + break; #endif #if (defined (OBJ_ELF) || defined (OBJ_MAYBE_ELF) \ || defined (TE_PE) || defined (TE_PEP) || defined (OBJ_MACH_O)) @@ -9980,6 +9995,8 @@ md_show_usage (FILE *stream) -mold-gcc support old (<= 2.8.1) versions of gcc\n")); fprintf (stream, _("\ -madd-bnd-prefix add BND prefix for all valid branches\n")); + fprintf (stream, _("\ + -mno-shared enable branch optimization for non shared code\n")); # if defined (TE_PE) || defined (TE_PEP) fprintf (stream, _("\ -mbig-obj generate big object files\n")); |