diff options
| author | Jia Liu <proljc@gmail.com> | 2012-07-20 15:50:52 +0800 |
|---|---|---|
| committer | Blue Swirl <blauwirbel@gmail.com> | 2012-07-27 21:13:05 +0000 |
| commit | d962783e9849acf8eb329abd319a5baab28e4f62 (patch) | |
| tree | ced0bf572eb2a4ba411a1d5638e71bda731d4f06 /linux-user/elfload.c | |
| parent | a8720299f1aa5dcf7b83e78644b0f6502958e973 (diff) | |
target-or32: Add linux user support
Add QEMU OpenRISC linux user support.
Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'linux-user/elfload.c')
| -rw-r--r-- | linux-user/elfload.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index f3b1552e9e..6b622d4ff9 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -787,6 +787,47 @@ static void elf_core_copy_regs(target_elf_gregset_t *regs, const CPUMBState *env #endif /* TARGET_MICROBLAZE */ +#ifdef TARGET_OPENRISC + +#define ELF_START_MMAP 0x08000000 + +#define elf_check_arch(x) ((x) == EM_OPENRISC) + +#define ELF_ARCH EM_OPENRISC +#define ELF_CLASS ELFCLASS32 +#define ELF_DATA ELFDATA2MSB + +static inline void init_thread(struct target_pt_regs *regs, + struct image_info *infop) +{ + regs->pc = infop->entry; + regs->gpr[1] = infop->start_stack; +} + +#define USE_ELF_CORE_DUMP +#define ELF_EXEC_PAGESIZE 8192 + +/* See linux kernel arch/openrisc/include/asm/elf.h. */ +#define ELF_NREG 34 /* gprs and pc, sr */ +typedef target_elf_greg_t target_elf_gregset_t[ELF_NREG]; + +static void elf_core_copy_regs(target_elf_gregset_t *regs, + const CPUOpenRISCState *env) +{ + int i; + + for (i = 0; i < 32; i++) { + (*regs)[i] = tswapl(env->gpr[i]); + } + + (*regs)[32] = tswapl(env->pc); + (*regs)[33] = tswapl(env->sr); +} +#define ELF_HWCAP 0 +#define ELF_PLATFORM NULL + +#endif /* TARGET_OPENRISC */ + #ifdef TARGET_SH4 #define ELF_START_MMAP 0x80000000 |