Author: Michał Górny Date: 2020-11-12T14:09:03+01:00 New Revision: f37834c7dcbe69405bf3e182d2b3e3227cc4a569
URL: https://github.com/llvm/llvm-project/commit/f37834c7dcbe69405bf3e182d2b3e3227cc4a569 DIFF: https://github.com/llvm/llvm-project/commit/f37834c7dcbe69405bf3e182d2b3e3227cc4a569.diff LOG: [lldb] [test] Add a minimal test for x86 dbreg reading Add a test verifying that after the 'watchpoint' command, new values of x86 debug registers can be read back correctly. The primary purpose of this test is to catch broken DRn reading and help debugging it. Differential Revision: https://reviews.llvm.org/D91264 Added: lldb/test/Shell/Register/Inputs/x86-db-read.cpp lldb/test/Shell/Register/x86-db-read.test Modified: Removed: ################################################################################ diff --git a/lldb/test/Shell/Register/Inputs/x86-db-read.cpp b/lldb/test/Shell/Register/Inputs/x86-db-read.cpp new file mode 100644 index 000000000000..7aa957e10db8 --- /dev/null +++ b/lldb/test/Shell/Register/Inputs/x86-db-read.cpp @@ -0,0 +1,12 @@ +#include <cstdint> +#include <csignal> + +uint8_t g_8w; +uint16_t g_16rw; +uint32_t g_32w; +uint32_t g_32rw; + +int main() { + ::raise(SIGSTOP); + return 0; +} diff --git a/lldb/test/Shell/Register/x86-db-read.test b/lldb/test/Shell/Register/x86-db-read.test new file mode 100644 index 000000000000..f8380440c627 --- /dev/null +++ b/lldb/test/Shell/Register/x86-db-read.test @@ -0,0 +1,36 @@ +# Debug registers are currently printed only on FreeBSD. +# REQUIRES: system-freebsd +# REQUIRES: native && (target-x86 || target-x86_64) && dbregs-set +# RUN: %clangxx_host -g %p/Inputs/x86-db-read.cpp -o %t +# RUN: %lldb -b -s %s %t | FileCheck %s +process launch +# CHECK: Process {{[0-9]+}} stopped + +watchpoint set variable -w write g_8w +# CHECK: Watchpoint created: Watchpoint 1: addr = 0x{{[0-9a-f]*}} size = 1 state = enabled type = w +watchpoint set variable -w read_write g_16rw +# CHECK: Watchpoint created: Watchpoint 2: addr = 0x{{[0-9a-f]*}} size = 2 state = enabled type = rw +watchpoint set variable -w write g_32w +# CHECK: Watchpoint created: Watchpoint 3: addr = 0x{{[0-9a-f]*}} size = 4 state = enabled type = w +watchpoint set variable -w read_write g_32rw +# CHECK: Watchpoint created: Watchpoint 4: addr = 0x{{[0-9a-f]*}} size = 4 state = enabled type = rw + +print &g_8w +# CHECK: (uint8_t *) $0 = [[VAR8W:0x[0-9a-f]*]] +print &g_16rw +# CHECK: (uint16_t *) $1 = [[VAR16RW:0x[0-9a-f]*]] +print &g_32w +# CHECK: (uint32_t *) $2 = [[VAR32W:0x[0-9a-f]*]] +print &g_32rw +# CHECK: (uint32_t *) $3 = [[VAR64RW:0x[0-9a-f]*]] + +register read --all +# CHECK-DAG: dr0 = [[VAR8W]] +# CHECK-DAG: dr1 = [[VAR16RW]] +# CHECK-DAG: dr2 = [[VAR32W]] +# CHECK-DAG: dr3 = [[VAR64RW]] +# CHECK-DAG: dr6 = 0x{{(00000000)?}}ffff0ff0 +# CHECK-DAG: dr7 = 0x{{(00000000)?}}fd7104aa + +process continue +# CHECK: Process {{[0-9]+}} exited with status = 0 _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
