There was recently on the mailing list some questions
and a need to support LLP64 model.
This patch add is by adjusting a few size-related variables
under the control of a new flag: -msize-llp64 (ugly name
but we already have we have '-msize-long').
CC: Dibyendu Majumdar <mobile@xxxxxxxxxxxxxxx>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@xxxxxxxxx>
---
lib.c | 34 +++++++++++++++++++++++++++-------
1 file changed, 27 insertions(+), 7 deletions(-)
diff --git a/lib.c b/lib.c
index 2a1bbac87..467e040be 100644
--- a/lib.c
+++ b/lib.c
@@ -257,10 +257,14 @@ static enum { STANDARD_C89,
STANDARD_GNU89,
STANDARD_GNU99, } standard = STANDARD_GNU89;
+#define ARCH_LP32 0
+#define ARCH_LP64 1
+#define ARCH_LLP64 2
+
#ifdef __x86_64__
-#define ARCH_M64_DEFAULT 1
+#define ARCH_M64_DEFAULT ARCH_LP64
#else
-#define ARCH_M64_DEFAULT 0
+#define ARCH_M64_DEFAULT ARCH_LP32
#endif
int arch_m64 = ARCH_M64_DEFAULT;
@@ -387,9 +391,11 @@ static char **handle_multiarch_dir(char *arg, char **next)
static char **handle_switch_m(char *arg, char **next)
{
if (!strcmp(arg, "m64")) {
- arch_m64 = 1;
+ arch_m64 = ARCH_LP64;
} else if (!strcmp(arg, "m32")) {
- arch_m64 = 0;
+ arch_m64 = ARCH_LP32;
+ } else if (!strcmp(arg, "msize-llp64")) {
+ arch_m64 = ARCH_LLP64;
} else if (!strcmp(arg, "msize-long")) {
arch_msize_long = 1;
} else if (!strcmp(arg, "multiarch-dir"))
@@ -399,18 +405,32 @@ static char **handle_switch_m(char *arg, char **next)
static void handle_arch_m64_finalize(void)
{
- if (arch_m64) {
+ switch (arch_m64) {
+ case ARCH_LP32:
+ /* default values */
+ return;
+ case ARCH_LP64:
bits_in_long = 64;
max_int_alignment = 8;
- bits_in_pointer = 64;
- pointer_alignment = 8;
size_t_ctype = &ulong_ctype;
ssize_t_ctype = &long_ctype;
add_pre_buffer("#weak_define __LP64__ 1\n");
add_pre_buffer("#weak_define _LP64 1\n");
+ goto case_64bit_common;
+ case ARCH_LLP64:
+ bits_in_long = 32;
+ max_int_alignment = 4;
+ size_t_ctype = &ullong_ctype;
+ ssize_t_ctype = &llong_ctype;
+ add_pre_buffer("#weak_define __LLP64__ 1\n");
+ goto case_64bit_common;
+ case_64bit_common:
+ bits_in_pointer = 64;
+ pointer_alignment = 8;
#ifdef __x86_64__
add_pre_buffer("#weak_define __x86_64__ 1\n");
#endif
+ break;
}
}
--
2.11.0
--
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