[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[PATCH v3 10/49] semihosting: Clean up common_semi_flen_cb
From: |
Richard Henderson |
Subject: |
[PATCH v3 10/49] semihosting: Clean up common_semi_flen_cb |
Date: |
Fri, 20 May 2022 17:03:21 -0700 |
Do not read from the gdb struct stat buffer if the callback is
reporting an error. Use common_semi_cb to finish returning results.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
semihosting/arm-compat-semi.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/semihosting/arm-compat-semi.c b/semihosting/arm-compat-semi.c
index 88e1c286ba..8792180974 100644
--- a/semihosting/arm-compat-semi.c
+++ b/semihosting/arm-compat-semi.c
@@ -346,15 +346,17 @@ static target_ulong common_semi_flen_buf(CPUState *cs)
static void
common_semi_flen_cb(CPUState *cs, target_ulong ret, target_ulong err)
{
- /* The size is always stored in big-endian order, extract
- the value. We assume the size always fit in 32 bits. */
- uint32_t size;
- cpu_memory_rw_debug(cs, common_semi_flen_buf(cs) + 32,
- (uint8_t *)&size, 4, 0);
- size = be32_to_cpu(size);
- common_semi_set_ret(cs, size);
- errno = err;
- set_swi_errno(cs, -1);
+ if (!err) {
+ /*
+ * The size is always stored in big-endian order, extract
+ * the value. We assume the size always fit in 32 bits.
+ */
+ uint32_t size;
+ cpu_memory_rw_debug(cs, common_semi_flen_buf(cs) + 32,
+ (uint8_t *)&size, 4, 0);
+ ret = be32_to_cpu(size);
+ }
+ common_semi_cb(cs, ret, err);
}
static int common_semi_open_guestfd;
--
2.34.1
[PATCH v3 05/49] semihosting: Add target_strlen for softmmu-uaccess.h, Richard Henderson, 2022/05/20