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authorMichael Clark <mjc@sifive.com>2018-03-03 01:31:11 +1300
committerMichael Clark <mjc@sifive.com>2018-03-07 08:30:28 +1300
commit47ae93cdfedc683c56e19113d516d7ce4971c8e6 (patch)
tree713240f8392d981ec9b11893d603475f7a5dcfa5 /linux-user/elfload.c
parent65c5b75c38b3e56650fc63674039108697096f75 (diff)
downloadfocaccia-qemu-47ae93cdfedc683c56e19113d516d7ce4971c8e6.tar.gz
focaccia-qemu-47ae93cdfedc683c56e19113d516d7ce4971c8e6.zip
RISC-V Linux User Emulation
Implementation of linux user emulation for RISC-V.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Sagar Karandikar <sagark@eecs.berkeley.edu>
Signed-off-by: Michael Clark <mjc@sifive.com>
Diffstat (limited to 'linux-user/elfload.c')
-rw-r--r--linux-user/elfload.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index e3689c658a..5fc130cc20 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1295,6 +1295,28 @@ static inline void init_thread(struct target_pt_regs *regs,
 
 #endif /* TARGET_TILEGX */
 
+#ifdef TARGET_RISCV
+
+#define ELF_START_MMAP 0x80000000
+#define ELF_ARCH  EM_RISCV
+
+#ifdef TARGET_RISCV32
+#define ELF_CLASS ELFCLASS32
+#else
+#define ELF_CLASS ELFCLASS64
+#endif
+
+static inline void init_thread(struct target_pt_regs *regs,
+                               struct image_info *infop)
+{
+    regs->sepc = infop->entry;
+    regs->sp = infop->start_stack;
+}
+
+#define ELF_EXEC_PAGESIZE 4096
+
+#endif /* TARGET_RISCV */
+
 #ifdef TARGET_HPPA
 
 #define ELF_START_MMAP  0x80000000