100 lines
3.5 KiB
Diff
100 lines
3.5 KiB
Diff
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[commit] [patch] Fix CU relative vs. absolute offsets [Re: RFC: problem with DW_OP_GNU_deref_type and dwarf's get_base_type callback]
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http://sourceware.org/ml/gdb-patches/2012-03/msg00284.html
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http://sourceware.org/ml/gdb-cvs/2012-03/msg00134.html
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### src/gdb/ChangeLog 2012/03/08 19:08:09 1.13979
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### src/gdb/ChangeLog 2012/03/08 19:37:04 1.13980
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## -1,5 +1,15 @@
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2012-03-08 Jan Kratochvil <jan.kratochvil@redhat.com>
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+ Fix CU relative vs. absolute DIE offsets.
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+ * dwarf2loc.h (dwarf2_fetch_die_location_block): Rename parameter
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+ offset to offset_in_cu.
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+ * dwarf2read.c (process_enumeration_scope): Add CU offset to
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+ TYPE_OFFSET.
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+ (dwarf2_fetch_die_location_block): Rename parameter offset to
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+ offset_in_cu. New variable offset, add CU offset to OFFSET_IN_CU.
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+
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+2012-03-08 Jan Kratochvil <jan.kratochvil@redhat.com>
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+
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* libunwind-frame.c: Rename to ...
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* ia64-libunwind-tdep.c: ... here.
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* libunwind-frame.h: Rename to ...
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--- src/gdb/dwarf2loc.h 2012/01/05 21:53:14 1.29
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+++ src/gdb/dwarf2loc.h 2012/03/08 19:37:07 1.30
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@@ -61,7 +61,7 @@
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CORE_ADDR pc);
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struct dwarf2_locexpr_baton dwarf2_fetch_die_location_block
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- (unsigned int offset, struct dwarf2_per_cu_data *per_cu,
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+ (unsigned int offset_in_cu, struct dwarf2_per_cu_data *per_cu,
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CORE_ADDR (*get_frame_pc) (void *baton),
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void *baton);
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--- src/gdb/dwarf2read.c 2012/03/06 23:41:50 1.619
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+++ src/gdb/dwarf2read.c 2012/03/08 19:37:07 1.620
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@@ -8031,7 +8031,8 @@
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= lookup_signatured_type_at_offset (dwarf2_per_objfile->objfile,
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cu->per_cu->debug_types_section,
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cu->per_cu->offset);
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- if (type_sig->type_offset != die->offset)
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+ if (type_sig->per_cu.offset + type_sig->type_offset
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+ != die->offset)
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return;
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}
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@@ -14202,11 +14203,12 @@
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dwarf2_locexpr_baton->data has lifetime of PER_CU->OBJFILE. */
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struct dwarf2_locexpr_baton
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-dwarf2_fetch_die_location_block (unsigned int offset,
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+dwarf2_fetch_die_location_block (unsigned int offset_in_cu,
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struct dwarf2_per_cu_data *per_cu,
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CORE_ADDR (*get_frame_pc) (void *baton),
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void *baton)
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{
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+ unsigned int offset = per_cu->offset + offset_in_cu;
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struct dwarf2_cu *cu;
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struct die_info *die;
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struct attribute *attr;
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### src/gdb/testsuite/ChangeLog 2012/03/08 07:42:50 1.3127
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### src/gdb/testsuite/ChangeLog 2012/03/08 19:37:07 1.3128
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## -1,5 +1,11 @@
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2012-03-08 Jan Kratochvil <jan.kratochvil@redhat.com>
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+ Fix CU relative vs. absolute DIE offsets.
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+ * gdb.dwarf2/dw2-op-call.S: New compilation unit preceding the existing
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+ one.
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+
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+2012-03-08 Jan Kratochvil <jan.kratochvil@redhat.com>
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+
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Fix false FAIL on distros with relro linkage as default.
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* gdb.reverse/solib-precsave.exp: Try to compile the test using
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-Wl,-z,norelro first.
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--- src/gdb/testsuite/gdb.dwarf2/dw2-op-call.S 2012/01/04 08:17:51 1.5
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+++ src/gdb/testsuite/gdb.dwarf2/dw2-op-call.S 2012/03/08 19:37:08 1.6
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@@ -23,6 +23,23 @@
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array3: .2byte 3
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.section .debug_info
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+.Lcu0_begin:
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+ /* CU header */
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+ .4byte .Lcu0_end - .Lcu0_start /* Length of Compilation Unit */
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+.Lcu0_start:
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+ .2byte 2 /* DWARF Version */
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+ .4byte .Labbrev1_begin /* Offset into abbrev section */
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+ .byte 4 /* Pointer size */
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+
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+ /* CU die */
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+ .uleb128 1 /* Abbrev: DW_TAG_compile_unit */
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+ .ascii "file0.txt\0" /* DW_AT_name */
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+ .ascii "GNU C 3.3.3\0" /* DW_AT_producer */
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+ .byte 2 /* DW_LANG_C (C) */
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+
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+ .byte 0 /* End of children of CU */
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+.Lcu0_end:
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+
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.Lcu1_begin:
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/* CU header */
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.4byte .Lcu1_end - .Lcu1_start /* Length of Compilation Unit */
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