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| author | Mark Kettenis <kettenis@gnu.org> | 2003-06-04 21:03:23 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@gnu.org> | 2003-06-04 21:03:23 +0000 |
| commit | 0912c7f2c2c44c9f67b55303618f8b1fad03bb82 (patch) | |
| tree | a79fb4e776123f9c6a23b9686726b305656a6c03 /gdb/dwarf2-frame.c | |
| parent | 4e37032562891dd25621982f5c0a4977482cdad3 (diff) | |
| download | binutils-gdb-0912c7f2c2c44c9f67b55303618f8b1fad03bb82.tar.gz | |
* dwarf2-frame.c (struct comp_unit): Add member `dbase'.
(read_encoded_value): Handle DW_EH_PE_datarel encoding.
(dwarf2_build_frame_info): Set base for DW_EH_PE_datarel encodings
when handling .eh_frame sections.
Diffstat (limited to 'gdb/dwarf2-frame.c')
| -rw-r--r-- | gdb/dwarf2-frame.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gdb/dwarf2-frame.c b/gdb/dwarf2-frame.c index 7dbd0dbf753..f28fade3d7c 100644 --- a/gdb/dwarf2-frame.c +++ b/gdb/dwarf2-frame.c @@ -747,6 +747,9 @@ struct comp_unit /* Pointer to the .debug_frame section. */ asection *dwarf_frame_section; + + /* Base for DW_EH_PE_datarel encodings. */ + bfd_vma dbase; }; static unsigned int @@ -916,6 +919,9 @@ read_encoded_value (struct comp_unit *unit, unsigned char encoding, base = bfd_get_section_vma (unit->bfd, unit->dwarf_frame_section); base += (buf - unit->dwarf_frame_buffer); break; + case DW_EH_PE_datarel: + base = unit->dbase; + break; default: internal_error (__FILE__, __LINE__, "Invalid or unsupported encoding"); } @@ -1251,11 +1257,14 @@ dwarf2_build_frame_info (struct objfile *objfile) unit.abfd = objfile->obfd; unit.objfile = objfile; unit.addr_size = objfile->obfd->arch_info->bits_per_address / 8; + unit.dbase = 0; /* First add the information from the .eh_frame section. That way, the FDEs from that section are searched last. */ if (dwarf_eh_frame_offset) { + asection *got; + unit.cie = NULL; unit.dwarf_frame_buffer = dwarf2_read_section (objfile, dwarf_eh_frame_offset, @@ -1265,6 +1274,14 @@ dwarf2_build_frame_info (struct objfile *objfile) unit.dwarf_frame_size = dwarf_eh_frame_size; unit.dwarf_frame_section = dwarf_eh_frame_section; + /* FIXME: kettenis/20030602: This is the DW_EH_PE_datarel base + that for the i386/amd64 target, which currently is the only + target in GCC that supports/uses the DW_EH_PE_datarel + encoding. */ + got = bfd_get_section_by_name (unit.abfd, ".got"); + if (got) + unit.dbase = got->vma; + frame_ptr = unit.dwarf_frame_buffer; while (frame_ptr < unit.dwarf_frame_buffer + unit.dwarf_frame_size) frame_ptr = decode_frame_entry (&unit, frame_ptr, 1); |