Problems using the symansistr switch
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## Summary
<!-- Summarize the bug encountered concisely -->
Internal error 2015071402 occurs when building the lazarus trunk with an fpc trunk built with the "-dsymansistr" declaration.
## System Information
<!-- The more information are provided the easier it is to replicate the bug -->
- **Operating system:** <!-- Windows, Linux (if possible, also name the distro), FreeBSD, Android, ... -->Linux
- **Processor architecture:** <!-- x86, x86-64, ARM, AARCH64, AVR, RISC-V, PowerPC, ... -->x86-64
- **Compiler version:** <!-- 3.2, 3.2.2, 3.3, trunk, beta, ... (if possible, give also the git hash) -->trunk
- **Device:** <!-- Computer, Tablet, Mobile, Amiga, Microcontroller, ... -->Computer
## Steps to reproduce
<!-- How one can reproduce the issue - this is very important! -->
Building the lazarus trunk with an fpc trunk built with the "-dsymansistr" declaration.
## Example Project
<!-- If possible, please create an example project that exhibits the problematic
behavior, and link to it here in the bug report. -->
## What is the current bug behavior?
<!-- What actually happens -->
Lazarus build failed.
## What is the expected (correct) behavior?
<!-- What you should see instead -->
Lazarus build success.
## Relevant logs and/or screenshots
<!-- Paste any relevant logs - please use code blocks (```) to format console output, logs, and code -->
```
/usr/bin/make -C components/lazdebuggers/lazdebuggerintf
/home/vboxuser/development/fpc/bin/x86_64-linux/fpc.sh -MObjFPC -Scghi -O1 -g -gl -l -vewnhibq -Fu. -Fu../../../packager/units/x86_64-linux -Fu../../lazutils/lib/x86_64-linux -Fu/home/vboxuser/development/fpc/rtl -FE. -FUlib/x86_64-linux -Cg -Fl/usr/lib/gcc/x86_64-linux-gnu/12 -vw-n-h-l-d-u-t-p-c- -dSYN_MBCSSUPPORT -dWithSynExperimentalCharWidth -dx86_64 lazdebuggerintfpackage.pas
(1002) Target OS: Linux for x86-64
(3104) Compiling lazdebuggerintfpackage.pas
(3104) Compiling lazdebuggerintf.pas
(3104) Compiling lazdebuggervalueconverter.pas
(3104) Compiling lazdebuggertemplate.pas
(3104) Compiling dbgutilstypepatternlist.pas
(3104) Compiling lazdebuggerutils.pas
(3104) Compiling lazdebuggerintfexcludedroutines.pas
(3104) Compiling lazdebuggerintfsynchronizedlist.pas
/home/vboxuser/development/lazarus/components/lazdebuggers/lazdebuggerintf/lazdebuggerintfexcludedroutines.pas(545) Fatal: Internal error 2015071402
make: *** [Makefile:3210: lazbuild] Error 2
Fatal: (1018) Compilation aborted
```
## Possible fixes
<!-- If you can, link to the line of code that might be responsible for the problem -->
```patch
diff --git a/compiler/symtable.pas b/compiler/symtable.pas
index 6ba0bcfd44..04c0489bc3 100644
--- a/compiler/symtable.pas
+++ b/compiler/symtable.pas
@@ -4402,8 +4402,16 @@ parentclassh:=classh.childof;
srsymtable: tsymtable;
srsym: tsym;
begin
+ { keep in sync with the truncation performed in
+ TSymtable.insertsym (symbase.pas): symbol names starting with
+ '$' are stored truncated to maxidlen+1 characters (after
+ stripping the '$'). With TIDString = AnsiString (-dSYMANSISTR),
+ "s" is not implicitly truncated by the ShortString assignment
+ the way it is in a normal build, so we must truncate explicitly
+ here as well or a long enough name will never be found again,
+ triggering internalerror 2015071402. }
if s[1]='$' then
- found:=searchsym_in_module(current_module,copy(s,2,length(s)),srsym,srsymtable)
+ found:=searchsym_in_module(current_module,copy(s,2,maxidlen+1),srsym,srsymtable)
else
found:=searchsym_in_module(current_module,s,srsym,srsymtable);
if found then
```
issue
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Project: freepascal.org/fpc/source
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