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authorMark Alexander <marka@cygnus>1997-03-26 14:48:59 +0000
committerMark Alexander <marka@cygnus>1997-03-26 14:48:59 +0000
commit4a3150f58a4492a8b164eed90ee984c6485671a4 (patch)
tree61f2e2b2332119b4093cd925502e2b5a23a5057f /gdb/mdebugread.c
parent60d1227a31258b1da5919fd253b7a88666a4a29e (diff)
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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.
Diffstat (limited to 'gdb/mdebugread.c')
-rw-r--r--gdb/mdebugread.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/gdb/mdebugread.c b/gdb/mdebugread.c
index 1e9fe6d..dda7c8c 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. */