Inform GDB of file when using QEMU (#1630)

* Inform GDB of file when using QEMU

Fixes #1625

* Sync CHANGELOG from dev + version bump

Co-authored-by: Heap Crash <[email protected]>

.github/workflows/merge-conflict.yml

@@ -0,0 +1,28 @@
+name: Check for merge markers
+on: [pull_request]
+env:
+  GITHUB_BASE: origin/${{ github.event.pull_request.base.ref }}
+
+jobs:
+  mergecheck:
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 5
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Check for merge conflict markers commited
+      run: |
+        if git show ${GITHUB_BASE}..HEAD | grep -EB15 --color=always '^\+\+(>>>>>|=====|<<<<<)'; then
+            echo 'WARNING: Merge marker commits found in history.'
+            if git diff ${GITHUB_BASE}..HEAD | grep -EB15 --color=always '^\+(>>>>>|=====|<<<<<)'; then
+                echo 'ERROR: Merge markers still present! Do something!'
+                exit 1
+            fi
+        else
+            echo 'Congrats! All the merges you did were clean or resolved correctly :)'
+        fi

CHANGELOG.md

@@ -9,9 +9,15 @@ The table below shows which release corresponds to each branch, and what date th
 
 | Version          | Branch   | Release Date           |
 | ---------------- | -------- | ---------------------- |
-| [4.3.0](#430)    | `dev`    | Jun 30, 2020 (planned)
-| [4.2.0](#420)    | `beta`   | Jun 5, 2020 (planned)
-| [4.1.1](#411)    | `stable` | Jun 3, 2020
+| [4.4.0](#440)    | `dev`    | Sep 1, 2020 (planned)
+| [4.3.0](#430)    | `beta`   | Aug 1, 2020 (planned)
+| [4.2.0](#420)    | `stable` | Jul 3, 2020 (planned)
+| [4.1.7](#417)    |          | Jun 30, 2020
+| [4.1.5](#415)    |          | Jun 27, 2020
+| [4.1.4](#414)    |          | Jun 26, 2020
+| [4.1.3](#413)    |          | Jun 23, 2020
+| [4.1.2](#412)    |          | Jun 5, 2020
+| [4.1.1](#411)    |          | Jun 3, 2020
 | [4.1.0](#410)    |          | May 8, 2020
 | [4.0.1](#401)    |          | Jan 22, 2020
 | [4.0.0](#400)    |          | Jan 09, 2020
@@ -49,13 +55,41 @@ The table below shows which release corresponds to each branch, and what date th
 | [3.0.0](#300)    |          | Aug 20, 2016
 | [2.2.0](#220)    |          | Jan 5, 2015
 
-## 4.3.0 (`dev`)
+## 4.4.0 (`dev`)
 
-To be released on Jun 30, 2020.
+- [#1616][1616] Fix `cyclic` cli for 64 bit integers
 
-## 4.2.0 (`beta`)
+[1616]: https://github.com/Gallopsled/pwntools/pull/1616
 
-To be released on Jun 5, 2020.
+## 4.3.0 (`beta`)
+
+- [#1576][1576] Add `executable=` argument to `ELF.search`
+- [#1584][1584] Add `jmp_esp`/`jmp_rsp` attribute to `ROP`
+- [#1592][1592] Fix over-verbose logging of process() environment
+- [#1593][1593] Colorize output of `pwn template`
+- [#1601][1601] Add `pwn version` command line tool
+- [#1605][1605] Add to `fiddling.hexdump` a way to suppress the total at the end
+- [#1613][1613] Permit `--password` for `pwn template`
+- [#1564][1564] Fix `asm()` and `disasm()` for PowerPC64, MIPS64, Sparc64
+- [#1621][1621] Permit negative values in flat() and fit()
+
+[1576]: https://github.com/Gallopsled/pwntools/pull/1576
+[1584]: https://github.com/Gallopsled/pwntools/pull/1584
+[1592]: https://github.com/Gallopsled/pwntools/pull/1592
+[1593]: https://github.com/Gallopsled/pwntools/pull/1593
+[1601]: https://github.com/Gallopsled/pwntools/pull/1601
+[1605]: https://github.com/Gallopsled/pwntools/pull/1605
+[1613]: https://github.com/Gallopsled/pwntools/pull/1613
+[1564]: https://github.com/Gallopsled/pwntools/pull/1564
+[1621]: https://github.com/Gallopsled/pwntools/pull/1621
+
+## 4.2.1 (`stable`)
+
+- [#1625][1625] GDB now properly loads executables with QEMU
+
+[1625]: https://github.com/Gallopsled/pwntools/pull/1625
+
+## 4.2.0
 
 - [#1436][1436] Add ret2dlresolve automation
 - [fecf9f] tubes.ssh.process() no longer requires python 2 installed on remote (still requires python, though)

pwnlib/gdb.py

@@ -631,6 +631,9 @@ def attach(target, gdbscript = '', exe = None, gdb_args = None, ssh = None, sysr
         if context.os == 'android':
             pre += 'set gnutarget ' + _bfdname() + '\n'
 
+        if exe:
+            pre += 'file %s\n' % exe
+
     # let's see if we can find a pid to attach to
     pid = None
     if   isinstance(target, six.integer_types):

pwnlib/version.py

@@ -1 +1 @@
-__version__ = '4.2.0'
+__version__ = '4.2.1'

setup.py

@@ -83,7 +83,7 @@ setup(
     name                 = 'pwntools',
     python_requires      = '>=2.7',
     packages             = find_packages(),
-    version              = '4.2.0',
+    version              = '4.2.1',
     data_files           = [('',
                              glob.glob('*.md') + glob.glob('*.txt')),
                             ],