From: Thomas De Schampheleire <patrickdepinguin@gmail.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCHv2 3/3] toolchain: mark sysroot as 'safe' path for gdb auto-load
Date: Tue, 8 Jun 2021 17:18:39 +0200 [thread overview]
Message-ID: <20210608151840.20917-4-patrickdepinguin@gmail.com> (raw)
In-Reply-To: <20210608151840.20917-1-patrickdepinguin@gmail.com>
From: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
gdb can automatically load certain files as described in [1]. Such files
could install pretty-printers for complex data structures.
libstdcxx (C++ standard library) provided by gcc, is one example of a
library for which such auto-load file is available. But there are other
examples too, like libglib2.
However, gdb will only auto-load files if the file is located in one of the
locations treated as 'safe'. The Buildroot sysroot is not by default in that
list.
Provide a better debugging experience by adding the sysroot to the 'safe'
list, via the gdbinit file prepared by Buildroot.
[1] https://sourceware.org/gdb/onlinedocs/gdb/objfile_002dgdbdotext-file.html
Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
---
toolchain/helpers.mk | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/toolchain/helpers.mk b/toolchain/helpers.mk
index 17bc159f3e..dfb2581ed5 100644
--- a/toolchain/helpers.mk
+++ b/toolchain/helpers.mk
@@ -483,7 +483,8 @@ check_toolchain_ssp = \
#
gen_gdbinit_file = \
mkdir -p $(STAGING_DIR)/usr/share/buildroot/ ; \
- echo "set sysroot $(STAGING_DIR)" > $(STAGING_DIR)/usr/share/buildroot/gdbinit
+ echo "set sysroot $(STAGING_DIR)" > $(STAGING_DIR)/usr/share/buildroot/gdbinit ; \
+ echo "add-auto-load-safe-path $(STAGING_DIR)" >> $(STAGING_DIR)/usr/share/buildroot/gdbinit
# Given a path, determine the relative prefix (../) needed to return to the
# root level. Note that the last component is treated as a file component; use a
--
2.26.3
next prev parent reply other threads:[~2021-06-08 15:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-08 15:18 [Buildroot] [PATCHv2 0/3] Fix gdb pretty printers for libstdcxx Thomas De Schampheleire
2021-06-08 15:18 ` [Buildroot] [PATCHv2 1/3] package/gdb: fix gdb 9.2 segfault with Python 3.9 support Thomas De Schampheleire
2021-07-25 21:21 ` Thomas Petazzoni
2021-08-05 11:10 ` Peter Korsgaard
2021-06-08 15:18 ` [Buildroot] [PATCHv2 2/3] toolchain/toolchain-external: fixup gdb pretty-printer loader for libstdcxx Thomas De Schampheleire
2021-07-25 21:23 ` Thomas Petazzoni
2021-06-08 15:18 ` Thomas De Schampheleire [this message]
2021-07-25 21:23 ` [Buildroot] [PATCHv2 3/3] toolchain: mark sysroot as 'safe' path for gdb auto-load Thomas Petazzoni
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