From: Mark Alexander <marka@cygnus>
Date: Wed, 26 Mar 1997 14:48:59 +0000 (+0000)
Subject: 	Fix from Peter Schauer:
X-Git-Tag: gdb-4_18-branchpoint~6009
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4a3150f58a4492a8b164eed90ee984c6485671a4;p=thirdparty%2Fbinutils-gdb.git

	Fix from Peter Schauer:
	* mdebugread.c (parse_procedure): Set address of procedure to
	block start; this fixes problems with shared libraries introduced
	by change of Mar 21.
---

diff --git a/gdb/mdebugread.c b/gdb/mdebugread.c
index 1e9fe6de65e..dda7c8c635d 100644
--- a/gdb/mdebugread.c
+++ b/gdb/mdebugread.c
@@ -2005,7 +2005,18 @@ parse_procedure (pr, search_symtab, pst)
       e = (struct mips_extra_func_info *) SYMBOL_VALUE (i);
       e->pdr = *pr;
       e->pdr.isym = (long) s;
-      e->pdr.adr += cur_fdr->adr;  /* PDR address is relative to FDR address */
+
+      /* GDB expects the absolute function start address for the
+	 procedure descriptor in e->pdr.adr.
+	 As the address in the procedure descriptor is usually relative,
+	 we would have to relocate e->pdr.adr with cur_fdr->adr and
+	 ANOFFSET (pst->section_offsets, SECT_OFF_TEXT).
+	 Unfortunately cur_fdr->adr and e->pdr.adr are both absolute
+	 in shared libraries on some systems, and on other systems
+	 e->pdr.adr is sometimes offset by a bogus value.
+	 To work around these problems, we replace e->pdr.adr with
+	 the start address of the function.  */
+      e->pdr.adr = BLOCK_START (b);
 
       /* Correct incorrect setjmp procedure descriptor from the library
 	 to make backtrace through setjmp work.  */