[lldb-mi] Implement -gdb-set breakpoint pending on/off
Summary: This allows creating pending breakpoint automatically when a location is not found. This is used by some front-ends instead of doing "-break-insert -f" every time. See also https://sourceware.org/gdb/onlinedocs/gdb/Set-Breaks.html Signed-off-by: Marc-Andre Laperle <malaperle@gmail.com> Subscribers: MaskRay, llvm-commits, lldb-commits, ki.stfu Tags: #lldb Differential Revision: https://reviews.llvm.org/D52953 llvm-svn: 345563
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@ -0,0 +1,47 @@
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# XFAIL: windows
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# -> llvm.org/pr24452
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#
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# RUN: %cc -o %t %p/inputs/break-insert-pending.c -g
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# RUN: %lldbmi %t < %s | FileCheck %s
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# Test for enabling pending breakpoints globally
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-break-insert printf
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# CHECK: ^error,msg="Command 'break-insert'. Breakpoint location 'printf' not found
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-gdb-set breakpoint pending on
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# CHECK: ^done
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-gdb-show breakpoint pending
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# CHECK: ^done,value="on"
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-break-insert printf
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# CHECK: ^done,bkpt={number="2",type="breakpoint",disp="keep",enabled="y",addr="0xffffffffffffffff",func="??",file="??",fullname="??/??",line="0",pending=["printf"],times="0",original-location="printf"}
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-exec-run
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# CHECK: ^running
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# CHECK: *stopped,reason="breakpoint-hit",disp="del",bkptno="2",frame={level="0",addr="{{0x[0-9a-f]*[^f][0-9a-f]*}}"
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-break-disable 2
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# CHECK: ^done
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-exec-continue
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# CHECK: ^running
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# CHECK: *stopped,reason="exited-normally"
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# Test that it can be turned back off
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-gdb-show breakpoint pending
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# CHECK: ^done,value="on"
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-gdb-set breakpoint pending off
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# CHECK: ^done
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-gdb-show breakpoint pending
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# CHECK: ^done,value="off"
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-break-insert printf-non-existent
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# CHECK: ^error,msg="Command 'break-insert'. Breakpoint location 'printf-non-existent' not found"
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# Check that enable/disable with 1 and 0 works
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-gdb-set breakpoint pending 1
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# CHECK: ^done
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-gdb-show breakpoint pending
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# CHECK: ^done,value="on"
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-gdb-set breakpoint pending 0
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# CHECK: ^done
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-gdb-show breakpoint pending
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# CHECK: ^done,value="off"
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-gdb-set breakpoint pending garbage
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# CHECK: ^done
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@ -0,0 +1,6 @@
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#include <stdio.h>
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int main(int argc, char const *argv[]) {
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printf("Print a formatted string so that GCC does not optimize this printf call: %s\n", argv[0]);
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return 0;
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}
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@ -165,8 +165,15 @@ bool CMICmdCmdBreakInsert::Execute() {
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if (sbTarget == rSessionInfo.GetDebugger().GetDummyTarget())
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m_bBrkPtIsPending = true;
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else
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else {
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m_bBrkPtIsPending = pArgPendingBrkPt->GetFound();
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if (!m_bBrkPtIsPending) {
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CMIUtilString pending;
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if (m_rLLDBDebugSessionInfo.SharedDataRetrieve("breakpoint.pending", pending)) {
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m_bBrkPtIsPending = pending == "on";
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}
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}
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}
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if (pArgLocation->GetFound())
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m_brkName = pArgLocation->GetValue();
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@ -28,7 +28,8 @@ const CMICmdCmdGdbSet::MapGdbOptionNameToFnGdbOptionPtr_t
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{"output-radix", &CMICmdCmdGdbSet::OptionFnOutputRadix},
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{"solib-search-path", &CMICmdCmdGdbSet::OptionFnSolibSearchPath},
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{"disassembly-flavor", &CMICmdCmdGdbSet::OptionFnDisassemblyFlavor},
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{"fallback", &CMICmdCmdGdbSet::OptionFnFallback}};
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{"fallback", &CMICmdCmdGdbSet::OptionFnFallback},
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{"breakpoint", &CMICmdCmdGdbSet::OptionFnBreakpoint}};
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//++
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//------------------------------------------------------------------------------------
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@ -431,6 +432,56 @@ bool CMICmdCmdGdbSet::OptionFnDisassemblyFlavor(
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return MIstatus::success;
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}
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//++
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//------------------------------------------------------------------------------------
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// Details: Carry out work to complete the GDB set option 'breakpoint' to
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// prepare
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// and send back information asked for.
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// Type: Method.
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// Args: vrWords - (R) List of additional parameters used by this option.
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// Return: MIstatus::success - Function succeeded.
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// MIstatus::failure - Function failed.
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// Throws: None.
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//--
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bool CMICmdCmdGdbSet::OptionFnBreakpoint(
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const CMIUtilString::VecString_t &vrWords) {
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bool bPending = false;
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bool bOk = true;
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if (vrWords.size() != 2)
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// Wrong number of arguments.
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bOk = false;
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else if (CMIUtilString::Compare(vrWords[0], "pending") &&
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(CMIUtilString::Compare(vrWords[1], "on") ||
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CMIUtilString::Compare(vrWords[1], "1")))
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bPending = true;
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else if (CMIUtilString::Compare(vrWords[0], "pending") &&
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(CMIUtilString::Compare(vrWords[1], "off") ||
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CMIUtilString::Compare(vrWords[1], "0")))
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bPending = false;
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else
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// Unrecognized argument(s).
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bOk = false;
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if (!bOk) {
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// Report error.
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m_bGbbOptionFnHasError = false;
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SetError(MIRSRC(IDS_CMD_ERR_GDBSET_OPT_BREAKPOINT));
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return MIstatus::failure;
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}
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CMIUtilString sPendingVal = bPending ? "on" : "off";
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CMIUtilString sKey = "breakpoint.pending";
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if (!m_rLLDBDebugSessionInfo.SharedDataAdd(sKey, sPendingVal)) {
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m_bGbbOptionFnHasError = false;
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SetError(CMIUtilString::Format(MIRSRC(IDS_DBGSESSION_ERR_SHARED_DATA_ADD),
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m_cmdData.strMiCmd.c_str(), sKey.c_str()));
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return MIstatus::failure;
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}
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return MIstatus::success;
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}
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//++
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//------------------------------------------------------------------------------------
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// Details: Carry out work to complete the GDB set option to prepare and send
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@ -80,6 +80,7 @@ private:
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bool OptionFnSolibSearchPath(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnOutputRadix(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnDisassemblyFlavor(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnBreakpoint(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnFallback(const CMIUtilString::VecString_t &vrWords);
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// Attributes:
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@ -32,7 +32,8 @@ const CMICmdCmdGdbShow::MapGdbOptionNameToFnGdbOptionPtr_t
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{"print", &CMICmdCmdGdbShow::OptionFnPrint},
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{"language", &CMICmdCmdGdbShow::OptionFnLanguage},
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{"disassembly-flavor", &CMICmdCmdGdbShow::OptionFnDisassemblyFlavor},
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{"fallback", &CMICmdCmdGdbShow::OptionFnFallback}};
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{"fallback", &CMICmdCmdGdbShow::OptionFnFallback},
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{"breakpoint", &CMICmdCmdGdbShow::OptionFnBreakpoint}};
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//++
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//------------------------------------------------------------------------------------
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@ -347,6 +348,43 @@ bool CMICmdCmdGdbShow::OptionFnDisassemblyFlavor(const CMIUtilString::VecString_
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return MIstatus::success;
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}
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//++
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//------------------------------------------------------------------------------------
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// Details: Carry out work to complete the GDB show option 'breakpoint' to
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// prepare
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// and send back the requested information.
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// Type: Method.
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// Args: vrWords - (R) List of additional parameters used by this option.
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// Return: MIstatus::success - Function succeeded.
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// MIstatus::failure - Function failed.
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// Throws: None.
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//--
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bool CMICmdCmdGdbShow::OptionFnBreakpoint(
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const CMIUtilString::VecString_t &vrWords) {
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if (vrWords.size() != 1) {
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m_bGbbOptionFnHasError = true;
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m_strGdbOptionFnError = MIRSRC(IDS_CMD_ERR_GDBSHOW_OPT_BREAKPOINT_BAD_ARGS);
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return MIstatus::failure;
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}
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const CMIUtilString strOption(vrWords[0]);
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if (!CMIUtilString::Compare(strOption, "pending")) {
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m_bGbbOptionFnHasError = true;
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m_strGdbOptionFnError = CMIUtilString::Format(
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MIRSRC(IDS_CMD_ERR_GDBSHOW_OPT_BREAKPOINT_UNKNOWN_OPTION),
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strOption.c_str());
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return MIstatus::failure;
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}
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if (!m_rLLDBDebugSessionInfo.SharedDataRetrieve("breakpoint.pending",
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m_strValue)) {
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if (m_strValue.empty())
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m_strValue = "off";
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}
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return MIstatus::success;
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}
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//++
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//------------------------------------------------------------------------------------
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// Details: Carry out work to complete the GDB show option to prepare and send
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bool OptionFnLanguage(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnDisassemblyFlavor(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnFallback(const CMIUtilString::VecString_t &vrWords);
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bool OptionFnBreakpoint(const CMIUtilString::VecString_t &vrWords);
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// Attributes:
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private:
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@ -439,6 +439,8 @@ const CMICmnResources::SRsrcTextData
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{IDS_CMD_ERR_INFO_PRINTFN_FAILED, "The request '%s' failed."},
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{IDS_CMD_ERR_GDBSET_OPT_TARGETASYNC,
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"'target-async' expects \"on\" or \"off\""},
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{IDS_CMD_ERR_GDBSET_OPT_BREAKPOINT,
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"'breakpoint' expects \"pending on\" or \"pending off\""},
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{IDS_CMD_ERR_GDBSET_OPT_SOLIBSEARCHPATH,
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"'solib-search-path' requires at least one argument"},
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{IDS_CMD_ERR_GDBSET_OPT_PRINT_BAD_ARGS,
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"'print' expects option-name and \"on\" or \"off\""},
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{IDS_CMD_ERR_GDBSHOW_OPT_PRINT_UNKNOWN_OPTION,
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"'print' error. The option '%s' not found"},
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{IDS_CMD_ERR_GDBSHOW_OPT_BREAKPOINT_BAD_ARGS,
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"'breakpoint' expects option-name"},
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{IDS_CMD_ERR_GDBSHOW_OPT_BREAKPOINT_UNKNOWN_OPTION,
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"'breakpoint' error. The option '%s' not found"},
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{IDS_CMD_ERR_EXPR_INVALID, "Failed to evaluate expression: %s"},
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{IDS_CMD_ERR_ATTACH_FAILED,
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"Command '%s'. Attach to process failed: %s"},
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@ -264,11 +264,14 @@ enum {
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IDS_CMD_ERR_INFO_PRINTFN_NOT_FOUND,
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IDS_CMD_ERR_INFO_PRINTFN_FAILED,
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IDS_CMD_ERR_GDBSET_OPT_TARGETASYNC,
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IDS_CMD_ERR_GDBSET_OPT_BREAKPOINT,
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IDS_CMD_ERR_GDBSET_OPT_SOLIBSEARCHPATH,
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IDS_CMD_ERR_GDBSET_OPT_PRINT_BAD_ARGS,
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IDS_CMD_ERR_GDBSET_OPT_PRINT_UNKNOWN_OPTION,
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IDS_CMD_ERR_GDBSHOW_OPT_PRINT_BAD_ARGS,
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IDS_CMD_ERR_GDBSHOW_OPT_PRINT_UNKNOWN_OPTION,
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IDS_CMD_ERR_GDBSHOW_OPT_BREAKPOINT_BAD_ARGS,
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IDS_CMD_ERR_GDBSHOW_OPT_BREAKPOINT_UNKNOWN_OPTION,
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IDS_CMD_ERR_EXPR_INVALID,
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IDS_CMD_ERR_ATTACH_FAILED,
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IDS_CMD_ERR_ATTACH_BAD_ARGS
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