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-rw-r--r--target-mips/mips-semi.c44
1 files changed, 33 insertions, 11 deletions
diff --git a/target-mips/mips-semi.c b/target-mips/mips-semi.c
index 6944e986b6..1162c76df9 100644
--- a/target-mips/mips-semi.c
+++ b/target-mips/mips-semi.c
@@ -72,6 +72,28 @@ enum UHIOpenFlags {
UHIOpen_EXCL = 0x800
};
+/* Errno values taken from asm-mips/errno.h */
+static uint16_t host_to_mips_errno[] = {
+ [ENAMETOOLONG] = 78,
+#ifdef EOVERFLOW
+ [EOVERFLOW] = 79,
+#endif
+#ifdef ELOOP
+ [ELOOP] = 90,
+#endif
+};
+
+static int errno_mips(int err)
+{
+ if (err < 0 || err >= ARRAY_SIZE(host_to_mips_errno)) {
+ return EINVAL;
+ } else if (host_to_mips_errno[err]) {
+ return host_to_mips_errno[err];
+ } else {
+ return err;
+ }
+}
+
static int copy_stat_to_target(CPUMIPSState *env, const struct stat *src,
target_ulong vaddr)
{
@@ -223,7 +245,7 @@ void helper_do_semihosting(CPUMIPSState *env)
gpr[2] = 2;
} else {
gpr[2] = open(p, get_open_flags(gpr[5]), gpr[6]);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
}
FREE_TARGET_STRING(p, gpr[4]);
break;
@@ -234,24 +256,24 @@ void helper_do_semihosting(CPUMIPSState *env)
goto uhi_done;
}
gpr[2] = close(gpr[4]);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
break;
case UHI_read:
gpr[2] = read_from_file(env, gpr[4], gpr[5], gpr[6], 0);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
break;
case UHI_write:
gpr[2] = write_to_file(env, gpr[4], gpr[5], gpr[6], 0);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
break;
case UHI_lseek:
gpr[2] = lseek(gpr[4], gpr[5], gpr[6]);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
break;
case UHI_unlink:
GET_TARGET_STRING(p, gpr[4]);
gpr[2] = remove(p);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
FREE_TARGET_STRING(p, gpr[4]);
break;
case UHI_fstat:
@@ -259,12 +281,12 @@ void helper_do_semihosting(CPUMIPSState *env)
struct stat sbuf;
memset(&sbuf, 0, sizeof(sbuf));
gpr[2] = fstat(gpr[4], &sbuf);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
if (gpr[2]) {
goto uhi_done;
}
gpr[2] = copy_stat_to_target(env, &sbuf, gpr[5]);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
}
break;
case UHI_argc:
@@ -311,18 +333,18 @@ void helper_do_semihosting(CPUMIPSState *env)
break;
case UHI_pread:
gpr[2] = read_from_file(env, gpr[4], gpr[5], gpr[6], gpr[7]);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
break;
case UHI_pwrite:
gpr[2] = write_to_file(env, gpr[4], gpr[5], gpr[6], gpr[7]);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
break;
#ifndef _WIN32
case UHI_link:
GET_TARGET_STRING(p, gpr[4]);
GET_TARGET_STRING(p2, gpr[5]);
gpr[2] = link(p, p2);
- gpr[3] = errno;
+ gpr[3] = errno_mips(errno);
FREE_TARGET_STRING(p2, gpr[5]);
FREE_TARGET_STRING(p, gpr[4]);
break;