@@ -561,6 +561,11 @@ typedef struct {
#define SHF_ALPHA_GPREL 0x10000000
+/* PowerPC specific definitions. */
+
+/* Processor specific flags for the ELF header e_flags field. */
+#define EF_PPC64_ABI 0x3
+
/* PowerPC relocations defined by the ABIs */
#define R_PPC_NONE 0
#define R_PPC_ADDR32 1 /* 32bit absolute address */
@@ -777,12 +777,18 @@ static uint32_t get_elf_hwcap(void)
NEW_AUX_ENT(AT_IGNOREPPC, AT_IGNOREPPC); \
} while (0)
+static inline uint32_t get_ppc64_abi(struct image_info *infop);
+
static inline void init_thread(struct target_pt_regs *_regs, struct image_info *infop)
{
_regs->gpr[1] = infop->start_stack;
#if defined(TARGET_PPC64) && !defined(TARGET_ABI32)
- _regs->gpr[2] = ldq_raw(infop->entry + 8) + infop->load_bias;
- infop->entry = ldq_raw(infop->entry) + infop->load_bias;
+ if (get_ppc64_abi(infop) < 2) {
+ _regs->gpr[2] = ldq_raw(infop->entry + 8) + infop->load_bias;
+ infop->entry = ldq_raw(infop->entry) + infop->load_bias;
+ } else {
+ _regs->gpr[12] = infop->entry; /* r12 set to global entry address */
+ }
#endif
_regs->nip = infop->entry;
}
@@ -1152,6 +1158,13 @@ static inline void init_thread(struct target_pt_regs *regs, struct image_info *i
#include "elf.h"
+#ifdef TARGET_PPC
+static inline uint32_t get_ppc64_abi(struct image_info *infop)
+{
+ return infop->elf_flags & EF_PPC64_ABI;
+}
+#endif
+
struct exec
{
unsigned int a_info; /* Use macros N_MAGIC, etc for access */
@@ -65,6 +65,12 @@ const char *cpu_to_uname_machine(void *cpu_env)
return "i586";
}
return "i686";
+#elif defined(TARGET_PPC64)
+#ifdef TARGET_WORDS_BIGENDIAN
+ return UNAME_MACHINE;
+#else
+ return UNAME_MACHINE "le";
+#endif
#else
/* default is #define-d in each arch/ subdir */
return UNAME_MACHINE;
Look at ELF header to determin ABI version on PPC64. This is required for executing the first instruction correctly. Also print correct machine name in uname() system call. Signed-off-by: Doug Kwan <dougkwan@google.com> --- include/elf.h | 5 +++++ linux-user/elfload.c | 17 +++++++++++++++-- linux-user/uname.c | 6 ++++++ 3 files changed, 26 insertions(+), 2 deletions(-)