diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2015-02-19 19:13:59 +0530 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2015-02-20 11:30:20 +0100 |
| commit | afab56958f1cbb47b831ee3ebff231dfbae74af2 (patch) | |
| tree | c6fdf19ecb770319d72048c7c56bd71964d52948 /ldso | |
| parent | 89b63496e88c31c2714e42656212078388718b78 (diff) | |
ARCv2 ISA support
This is next gen Instruction Set Architecture from Synopsys and basis
for the ARC HS family of processors.
http://www.synopsys.com/dw/ipdir.php?ds=arc-hs38-processor&elq_mid=5732&elq_cid=458802
http://www.synopsys.com/IP/ProcessorIP/ARCProcessors/arc-hs/Pages/default.aspx
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
Diffstat (limited to 'ldso')
| -rw-r--r-- | ldso/ldso/arc/dl-sysdep.h | 15 | ||||
| -rw-r--r-- | ldso/ldso/arc/elfinterp.c | 4 |
2 files changed, 17 insertions, 2 deletions
diff --git a/ldso/ldso/arc/dl-sysdep.h b/ldso/ldso/arc/dl-sysdep.h index 08b3bade8..ca62a2c04 100644 --- a/ldso/ldso/arc/dl-sysdep.h +++ b/ldso/ldso/arc/dl-sysdep.h @@ -69,11 +69,16 @@ do { \ } while(0) /* Here we define the magic numbers that this dynamic loader should accept */ +#ifdef __A7__ #define MAGIC1 EM_ARCOMPACT +#define ELF_TARGET "ARCompact" /* For error messages */ +#elif defined(__HS__) +#define MAGIC1 EM_ARCV2 +#define ELF_TARGET "ARCv2" /* For error messages */ +#endif + #undef MAGIC2 -/* Used for error messages */ -#define ELF_TARGET "ARC" struct elf_resolve; extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, @@ -81,6 +86,8 @@ extern unsigned long _dl_linux_resolver(struct elf_resolve * tpnt, extern unsigned __udivmodsi4(unsigned, unsigned) attribute_hidden; +#ifdef __A7__ +/* using "C" causes an indirection via __umodsi3 -> __udivmodsi4 */ #define do_rem(result, n, base) ((result) = \ \ __builtin_constant_p (base) ? (n) % (unsigned) (base) : \ @@ -95,6 +102,10 @@ extern unsigned __udivmodsi4(unsigned, unsigned) attribute_hidden; r1; \ }) \ ) +#elif defined(__HS__) +/* ARCv2 has hardware assisted divide/mod */ +#define do_rem(result, n, base) ((result) = (n) % (unsigned) (base)) +#endif /* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or TLS variable so PLT entries should not be allowed to define the value. diff --git a/ldso/ldso/arc/elfinterp.c b/ldso/ldso/arc/elfinterp.c index d26c94705..7c31d3ac7 100644 --- a/ldso/ldso/arc/elfinterp.c +++ b/ldso/ldso/arc/elfinterp.c @@ -11,7 +11,11 @@ */ #include "ldso.h" +#ifdef __A7__ #define ARC_PLT_SIZE 12 +#else +#define ARC_PLT_SIZE 16 +#endif unsigned long _dl_linux_resolver(struct elf_resolve *tpnt, unsigned int plt_pc) |