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[Qemu-devel] [RFC 6/9] exec: let cpu_watchpoint_insert accept larger wat
From: |
Max Filippov |
Subject: |
[Qemu-devel] [RFC 6/9] exec: let cpu_watchpoint_insert accept larger watchpoints |
Date: |
Sun, 29 Jan 2012 06:19:28 +0400 |
Make cpu_watchpoint_insert accept watchpoints of any power-of-two size
up to the target page size.
Signed-off-by: Max Filippov <address@hidden>
---
exec.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/exec.c b/exec.c
index bc6c185..39a5497 100644
--- a/exec.c
+++ b/exec.c
@@ -1443,7 +1443,8 @@ int cpu_watchpoint_insert(CPUState *env, target_ulong
addr, target_ulong len,
CPUWatchpoint *wp;
/* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */
- if ((len != 1 && len != 2 && len != 4 && len != 8) || (addr & ~len_mask)) {
+ if ((len & (len - 1)) || (addr & ~len_mask) ||
+ len == 0 || len > TARGET_PAGE_SIZE) {
fprintf(stderr, "qemu: tried to set invalid watchpoint at "
TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len);
return -EINVAL;
--
1.7.7.6
- [Qemu-devel] [RFC 0/9] target-xtensa: implement debug option, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 1/9] target-xtensa: add DEBUGCAUSE SR and configuration, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 2/9] target-xtensa: implement instruction breakpoints, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 3/9] target-xtensa: add ICOUNT SR and debug exception, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 5/9] exec: fix check_watchpoint exiting cpu_loop, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 6/9] exec: let cpu_watchpoint_insert accept larger watchpoints,
Max Filippov <=
- [Qemu-devel] [RFC 4/9] exec: add missing breaks to the watch_mem_write, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 8/9] target-xtensa: add DEBUG_SECTION to overlay tool, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 7/9] target-xtensa: add DBREAK data breakpoints, Max Filippov, 2012/01/28
- [Qemu-devel] [RFC 9/9] target-xtensa: add breakpoint tests, Max Filippov, 2012/01/28