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[Qemu-devel] [PATCH v4 40/46] windbg: implemented kd_api_search_memory
From: |
Mihail Abakumov |
Subject: |
[Qemu-devel] [PATCH v4 40/46] windbg: implemented kd_api_search_memory |
Date: |
Mon, 11 Dec 2017 16:25:07 +0300 |
User-agent: |
StGit/0.17.1-dirty |
Signed-off-by: Mihail Abakumov <address@hidden>
Signed-off-by: Pavel Dovgalyuk <address@hidden>
Signed-off-by: Dmitriy Koltunov <address@hidden>
---
include/exec/windbgstub-utils.h | 1 +
windbgstub-utils.c | 33 +++++++++++++++++++++++++++++++++
windbgstub.c | 4 ++++
3 files changed, 38 insertions(+)
diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h
index 6e73ef973c..a58c47d359 100755
--- a/include/exec/windbgstub-utils.h
+++ b/include/exec/windbgstub-utils.h
@@ -90,6 +90,7 @@ void kd_api_write_physical_memory(CPUState *cpu, PacketData
*pd);
void kd_api_get_version(CPUState *cpu, PacketData *pd);
void kd_api_read_msr(CPUState *cpu, PacketData *pd);
void kd_api_write_msr(CPUState *cpu, PacketData *pd);
+void kd_api_search_memory(CPUState *cpu, PacketData *pd);
void kd_api_unsupported(CPUState *cpu, PacketData *pd);
SizedBuf kd_gen_exception_sc(CPUState *cpu);
diff --git a/windbgstub-utils.c b/windbgstub-utils.c
index 7ef301bac7..79899d3295 100755
--- a/windbgstub-utils.c
+++ b/windbgstub-utils.c
@@ -261,6 +261,39 @@ void kd_api_get_version(CPUState *cpu, PacketData *pd)
}
}
+void kd_api_search_memory(CPUState *cpu, PacketData *pd)
+{
+ DBGKD_SEARCH_MEMORY *m64c = &pd->m64.u.SearchMemory;
+ int s_len = MAX(ldq_p(&m64c->SearchLength), 1);
+ int p_len = MIN(ldl_p(&m64c->PatternLength), pd->extra_size);
+ target_ulong addr = ldq_p(&m64c->SearchAddress);
+ int size = MIN(s_len, 1024);
+ uint8_t mem[size + p_len];
+ int i, err;
+
+ pd->extra_size = 0;
+ pd->m64.ReturnStatus = STATUS_NO_MORE_ENTRIES;
+
+ while (s_len) {
+ err = cpu_memory_rw_debug(cpu, addr, mem, size + p_len, 0);
+ if (!err) {
+ for (i = 0; i < size; ++i) {
+ if (memcmp(mem + i, pd->extra, p_len) == 0) {
+ stl_p(&m64c->FoundAddress, addr + i);
+ pd->m64.ReturnStatus = STATUS_SUCCESS;
+ return;
+ }
+ }
+ } else {
+ WINDBG_DEBUG("search_memory: No physical page mapped: " FMT_ADDR,
+ addr);
+ }
+ s_len -= size;
+ addr += size;
+ size = MIN(s_len, 1024);
+ }
+}
+
void kd_api_unsupported(CPUState *cpu, PacketData *pd)
{
WINDBG_ERROR("Caught unimplemented api %s",
diff --git a/windbgstub.c b/windbgstub.c
index 45f61917d9..3dcac03be1 100755
--- a/windbgstub.c
+++ b/windbgstub.c
@@ -212,6 +212,10 @@ static void
windbg_process_manipulate_packet(ParsingContext *ctx)
case DbgKdClearAllInternalBreakpointsApi:
return;
+ case DbgKdSearchMemoryApi:
+ kd_api_search_memory(cpu, &ctx->data);
+ break;
+
default:
kd_api_unsupported(cpu, &ctx->data);
break;
- [Qemu-devel] [PATCH v4 30/46] windbg: implemented windbg_set_dr, (continued)
- [Qemu-devel] [PATCH v4 30/46] windbg: implemented windbg_set_dr, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 31/46] windbg: implemented windbg_set_dr7, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 32/46] windbg: implemented windbg_hw_breakpoint_insert and windbg_hw_breakpoint_remove, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 33/46] windbg: implemented kd_api_write_breakpoint and kd_api_restore_breakpoint, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 34/46] windbg: debug exception subscribing, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 35/46] windbg: implemented kd_api_continue, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 36/46] windbg: implemented kd_api_read_io_space and kd_api_write_io_space, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 37/46] windbg: implemented kd_api_read_physical_memory and kd_api_write_physical_memory, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 38/46] windbg: implemented kd_api_get_version, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 39/46] windbg: implemented kd_api_read_msr and kd_api_write_msr, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 40/46] windbg: implemented kd_api_search_memory,
Mihail Abakumov <=
- [Qemu-devel] [PATCH v4 41/46] windbg: implemented kd_api_fill_memory, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 42/46] windbg: implemented kd_api_query_memory, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 43/46] windbg: added new api functions, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 44/46] windbg: implemented kd_api_get_context_ex and kd_api_set_context_ex, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 45/46] windbg: changed kd_api_read_msr and kd_api_write_msr, Mihail Abakumov, 2017/12/11
- [Qemu-devel] [PATCH v4 46/46] windbg: maintainers, Mihail Abakumov, 2017/12/11
- Re: [Qemu-devel] [PATCH v4 00/46] Windbg supporting, no-reply, 2017/12/12
- Re: [Qemu-devel] [PATCH v4 00/46] Windbg supporting, Ladi Prosek, 2017/12/14