From 7e61560628d17ea6b1d8ee370f6d42694cff8758 Mon Sep 17 00:00:00 2001 From: Ulises Mendez Martinez Date: Fri, 4 Sep 2026 15:07:09 +0000 Subject: objtool: Validate disassembler headers in libopcodes probe commit 3f2de814c059 ("objtool: Fix libopcodes linking with static libraries") tested for libopcodes availability by linking a test snippet with a forward declaration of disassemble_init_for_target(). However, testing symbol linkage with an extern declaration only verifies the presence of the library (.so/.a) and bypasses checking for development headers (binutils-dev). On systems where libopcodes is present without development headers installed, the probe succeeds, enabling BUILD_DISAS. Subsequent compilation of objtool then fails: fatal error: 'bfd.h' file not found 113 | #include Additionally, the probe invokes $(HOSTCC) without $(HOSTCFLAGS), ignoring any sysroot or include flags specified for the host compiler. Fix this by including and directly in the test snippet, passing $(HOSTCFLAGS) so host compiler options are respected, and defining PACKAGE="objtool" to satisfy the configuration check in . Fixes: 3f2de814c059 ("objtool: Fix libopcodes linking with static libraries") Fixes: 436326bc525d ("objtool: fix build failure due to missing libopcodes check") Reported-by: Alice Ryhl Assisted-by: Antigravity:Gemini-Next Signed-off-by: Ulises Mendez Martinez Link: https://patch.msgid.link/20260904150710.2997558-1-umendez@google.com Signed-off-by: Josh Poimboeuf --- lib/raid/raid6/unroll.awk | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 lib/raid/raid6/unroll.awk (limited to 'lib/raid/raid6/unroll.awk') diff --git a/lib/raid/raid6/unroll.awk b/lib/raid/raid6/unroll.awk new file mode 100644 index 000000000..0809805a7 --- /dev/null +++ b/lib/raid/raid6/unroll.awk @@ -0,0 +1,20 @@ + +# This filter requires one command line option of form -vN=n +# where n must be a decimal number. +# +# Repeat each input line containing $$ n times, replacing $$ with 0...n-1. +# Replace each $# with n, and each $* with a single $. + +BEGIN { + n = N + 0 +} +{ + if (/\$\$/) { rep = n } else { rep = 1 } + for (i = 0; i < rep; ++i) { + tmp = $0 + gsub(/\$\$/, i, tmp) + gsub(/\$#/, n, tmp) + gsub(/\$\*/, "$", tmp) + print tmp + } +} -- cgit v1.3.1