Attachment 194 Details for Bug 207 – Enable debug symbol propagation via the -g command line option

[patch] Enable debug symbol propagation via the -g command line option

0002-Enable-debug-symbol-propagation.patch (text/plain), 2.58 KB, created by James Jones on 2022-07-26 05:50:14 CDT

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Creator: James Jones

Created: 2022-07-26 05:50:14 CDT

Size: 2.58 KB

patch

obsolete

>From 08b5ec5f61d16277cfc94d8f7e33f0bf0693ee1d Mon Sep 17 00:00:00 2001
>From: James Jones <atari@theinnocuous.com>
>Date: Wed, 13 Jul 2022 15:22:46 -0700
>Subject: [PATCH 2/2] Enable debug symbol propagation
>
>The existing code was sufficient to pass through
>and relocate most debug symbols as necessary. It
>was just disabled for some reason. The only bugs
>were in the handling of non-text line numbers,
>which aren't ever used as far as I can tell, and
>include files, which should be relocated like
>line numbers to match ALN's behavior.
>---
> rln.c | 32 +++++++++++---------------------
> 1 file changed, 11 insertions(+), 21 deletions(-)
>
>diff --git a/rln.c b/rln.c
>index 4ae8d44..212a05c 100644
>--- a/rln.c
>+++ b/rln.c
>@@ -33,7 +33,6 @@ unsigned dataoffset = 0;			// COF DATA segment offset
> unsigned bssoffset = 0;				// COF BSS segment offset
> unsigned displaybanner = 1;			// Display version banner
> unsigned symoffset = 0;				// Symbol table offset in output file
>-unsigned dbgsymbase = 0;			// Debug symbol base address
> int noheaderflag = 0;				// No header flag for ABS files
> int hflags;							// Value of the arg to -h option
> int ttype, dtype, btype;			// Type flag: 0, -1, -2, -3, -4
>@@ -245,26 +244,21 @@ int DoSymbols(struct OFILE * ofile)
> 		if (type & 0xF0000000)
> 		{
> 			// DEBUG SYMBOL
>-			// Set the correct debug symbol base address (TEXT segment)
>-#if 0
>-			dbgsymbase = 0;
>-
>-			for(j=0; (unsigned)j<dosymi; j++)
>-				dbgsymbase += obj_segsize[j][0];
>-#else
>-			dbgsymbase = ofile->segBase[TEXT];
>-#endif
>-
> 			switch (type & 0xFF000000)
> 			{
>-			case 0x64000000:
>-				value = tval + dbgsymbase;
>+			case 0x64000000: // Primary source file path and/or name
>+			case 0x84000000: // Included source file path and/or name
>+			case 0x44000000: // Text line number
>+				value = tbase + tsegoffset + value;
>+				break;
>+			case 0x46000000: // Data line number (Not used by GCC/rmac)
>+				value = dbase + dsegoffset + value;
> 				break;
>-			case 0x44000000:
>-			case 0x46000000:
>-			case 0x48000000:
>-				value = tval + dbgsymbase + value;
>+			case 0x48000000: // BSS line number (Not used by GCC/rmac)
>+				value = bbase + bsegoffset + value;
> 			default:
>+				// All other debug symbols don't need to be relocated
>+				// XXX Not true, but matches ALN behavior.
> 				break;
> 			}
> 
>@@ -3133,12 +3127,8 @@ int doargs(int argc, char * argv[])
> 				break;
> 			case 'g':
> 			case 'G':					// Output source level debugging
>-				printf("\'g\' flag not currently implemented\n");
>-				gflag = 0;
>-				/*
> 				if (gflag) warn('g', 1);
> 				gflag = 1;
>-				*/
> 				break;
> 			case 'i':
> 			case 'I':					// Include binary file
>-- 
>2.34.1
>

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