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| author | Than McIntosh <thanm@golang.org> | 2024-12-12 20:47:30 -0500 |
|---|---|---|
| committer | Than McIntosh <thanm@golang.org> | 2025-03-04 04:48:53 -0800 |
| commit | bef2bb80a942a06bda2ff3aaedf46ff42d43aaf0 (patch) | |
| tree | 5ddcdd2b8fc062881d64e140d433882d2887459e /src/cmd/internal | |
| parent | 4c0a47a8ff74c5fe4366e1016250607943562569 (diff) | |
| download | go-bef2bb80a942a06bda2ff3aaedf46ff42d43aaf0.tar.xz | |
cmd/compile,cmd/link: move to DWARF5-style location lists
This patch updates the compiler to generate DWARF5-style location
lists (e.g. entries that feed into .debug_loclists) as opposed to
DWARF4-style location lists (which wind up in .debug_loc). The DWARF5
format is much more compact, and can make indirect references to text
addresses via the .debug_addr section for further space savings.
Updates #26379.
Change-Id: If2e6fce1136d9cba5125ea51a71419596d1d1691
Reviewed-on: https://go-review.googlesource.com/c/go/+/635836
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Diffstat (limited to 'src/cmd/internal')
| -rw-r--r-- | src/cmd/internal/dwarf/dwarf_defs.go | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/cmd/internal/dwarf/dwarf_defs.go b/src/cmd/internal/dwarf/dwarf_defs.go index db4245e95d..b4675cb193 100644 --- a/src/cmd/internal/dwarf/dwarf_defs.go +++ b/src/cmd/internal/dwarf/dwarf_defs.go @@ -465,6 +465,20 @@ const ( DW_RLE_start_length = 0x7 ) +// Table 7.10 (DWARF version 5), containing the encodings for the +// .debug_loclists entry formats. +const ( + DW_LLE_end_of_list = 0x0 + DW_LLE_base_addressx = 0x1 + DW_LLE_startx_endx = 0x2 + DW_LLE_startx_length = 0x3 + DW_LLE_offset_pair = 0x4 + DW_LLE_default_location = 0x5 + DW_LLE_base_address = 0x6 + DW_LLE_start_end = 0x7 + DW_LLE_start_length = 0x8 +) + // Table 7.27 (DWARF version 5), containing the encodings for the // line number header entry formats. const ( |