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Re: [MULTIBOOT2 SPEC PATCH v4 23/27] multiboot2: Generate per object fil

From: Hans Ulrich Niedermann
Subject: Re: [MULTIBOOT2 SPEC PATCH v4 23/27] multiboot2: Generate per object file listings
Date: Fri, 15 May 2020 17:14:08 +0200
User-agent: K-9 Mail for Android

I have just noticed that when running the multiboot2 build with "configure CC=clang" instead of going with the default gcc, clang10 will not recognize the "-Wa,-adhlns=$(@:.o=.lst)" argument and abort.

Ist clang support for the multiboot2 example kernel important? If so, I could either comment out those parameter additions, or guard them with a check for adhlns support and an AM_CONDITIONAL in

Am 15. Mai 2020 05:43:46 MESZ schrieb Hans Ulrich Niedermann <address@hidden>:
Generate one listing file *.lst per object file *.o.

This allows easy examination of the generated machine code,
making the example kernel more educational.

Signed-off-by: Hans Ulrich Niedermann <address@hidden>

diff --git a/.gitignore b/.gitignore
index e27a3e0e2..7a035c267 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,6 +30,7 @@ Makefile

# Generated by "make"

diff --git a/doc/ b/doc/
index cb290a0cb..cc07ceec8 100644
--- a/doc/
+++ b/doc/
@@ -1,3 +1,4 @@
info_TEXINFOS = multiboot.texi
arch_sources = boot_i386.S boot_mips.S
multiboot_TEXINFOS = boot_i386.S.texi boot_mips.S.texi kernel.c.texi multiboot2.h.texi
@@ -17,6 +18,10 @@ kernel_CFLAGS = $(kernel_cflags) -fno-builtin -nostdinc -O -g -Wall \
-imacros $(top_builddir)/config.h
kernel_LDFLAGS = -nostdlib -Wl,-N -Wl,-Ttext -Wl,80100000 -Wl,--build-id=none

+CLEANFILES += *.lst
+kernel_CCASFLAGS += -Wa,-adhlns=$(@:.o=.lst)
+kernel_CFLAGS += -Wa,-adhlns=$(@:.o=.lst)
EXTRA_DIST = $(man_MANS) $(noinst_SCRIPTS) \
$(arch_sources) $(multiboot_TEXINFOS)

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