298fd02e4a
9bd3f35003c2e9eff74766d57a71d6b391ab602a build: adds switch for disabling random base addresses in MSVC (Ethan Heilman)
Pull request description:
In m4 builds we have the --disable-hardening switch that can be given in `./configure` to turn off randomized addresses. This PR provides a simple way of turning off randomized addresses in MSVC builds.
This PR:
* Adds this option the common-init project file so that it can be globally set across the project
* Documents this switch in msvc build readme
I have run the following test to verify this works
I ran the msvc build with `<RandomizedBaseAddress>true</RandomizedBaseAddress>` then checked `bitcoind.exe` and `bitcoin-cli.exe` with `dumpbin.exe`:
bitcoind
```
> .\dumpbin.exe /headers src/bitcoind.exe
Microsoft (R) COFF/PE Dumper Version 14.16.27045.0
...
OPTIONAL HEADER VALUES
20B magic # (PE32+)
14.28 linker version
AE4600 size of code
345C00 size of initialized data
0 size of uninitialized data
6BED74 entry point (00000001406BED74) mainCRTStartup
1000 base of code
140000000 image base (0000000140000000 to 0000000140E2DFFF)
1000 section alignment
200 file alignment
6.00 operating system version
0.00 image version
6.00 subsystem version
0 Win32 version
E2E000 size of image
400 size of headers
0 checksum
3 subsystem (Windows CUI)
8160 DLL characteristics
High Entropy Virtual Addresses
Dynamic base
NX compatible
Terminal Server Aware
```
bitcoin-cli
```
> .\dumpbin.exe /headers src/bitcoin-cli.exe
Microsoft (R) COFF/PE Dumper Version 14.16.27045.0
...
OPTIONAL HEADER VALUES
20B magic # (PE32+)
14.28 linker version
1E3E00 size of code
92C00 size of initialized data
0 size of uninitialized data
104384 entry point (0000000140104384) mainCRTStartup
1000 base of code
140000000 image base (0000000140000000 to 0000000140279FFF)
1000 section alignment
200 file alignment
6.00 operating system version
0.00 image version
6.00 subsystem version
0 Win32 version
27A000 size of image
400 size of headers
0 checksum
3 subsystem (Windows CUI)
8160 DLL characteristics
High Entropy Virtual Addresses
Dynamic base
NX compatible
Terminal Server Aware
```
Then I built with `<RandomizedBaseAddress>false</RandomizedBaseAddress>` then checked `bitcoind.exe` and `bitcoin-cli.exe` with `dumpbin.exe` and observed that `Dynamic base` was longer listed in `OPTIONAL HEADER VALUES`
bitcoind
```
PS C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\MSVC\14.16.27023\bin\HostX64\x64> .\dumpbin.exe /headers C:\Users\e0\Documents\GitHub\bitcoin021noaslr/src/bitcoind.exe
Microsoft (R) COFF/PE Dumper Version 14.16.27045.0
...
OPTIONAL HEADER VALUES
20B magic # (PE32+)
14.28 linker version
AE4600 size of code
33FE00 size of initialized data
0 size of uninitialized data
6BED74 entry point (00000001406BED74) mainCRTStartup
1000 base of code
140000000 image base (0000000140000000 to 0000000140E27FFF)
1000 section alignment
200 file alignment
6.00 operating system version
0.00 image version
6.00 subsystem version
0 Win32 version
E28000 size of image
400 size of headers
0 checksum
3 subsystem (Windows CUI)
8120 DLL characteristics
High Entropy Virtual Addresses
NX compatible
Terminal Server Aware
```
bitcoin-cli
```
> .\dumpbin.exe /headers src/bitcoin-cli.exe
Microsoft (R) COFF/PE Dumper Version 14.16.27045.0
...
OPTIONAL HEADER VALUES
20B magic # (PE32+)
14.28 linker version
1E3E00 size of code
90C00 size of initialized data
0 size of uninitialized data
104384 entry point (0000000140104384) mainCRTStartup
1000 base of code
140000000 image base (0000000140000000 to 0000000140277FFF)
1000 section alignment
200 file alignment
6.00 operating system version
0.00 image version
6.00 subsystem version
0 Win32 version
278000 size of image
400 size of headers
0 checksum
3 subsystem (Windows CUI)
8120 DLL characteristics
High Entropy Virtual Addresses
NX compatible
Terminal Server Aware
```
ACKs for top commit:
sipsorcery:
ACK 9bd3f35003c2e9eff74766d57a71d6b391ab602a.
practicalswift:
cr ACK 9bd3f35003c2e9eff74766d57a71d6b391ab602a: patch looks correct
Tree-SHA512: ddffdb4ff8a09c7cfef61c07a5db2a2828e9e3aa795ad8e5a1bf51ab489a68b40f87f6694518c5e0b8858c0fad4f93bb947b052e6b9d5e55eb38e764b746fc02
Bitcoin Core integration/staging tree
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