On Tue, Sep 15, 2015 at 11:57:00AM -0500, Chris J Arges wrote: > I got the following compiler error when building v12 of this patchset: > > DESCEND stacktool > CC stacktool.o > CC elf.o > CC special.o > CC arch/x86/decode.o > LD arch/x86/stacktool-in.o > LD stacktool-in.o > Warning: stacktool: x86 instruction decoder differs from kernel > LINK stacktool > stacktool-in.o: In function `elf_close': > (.text+0xe7c): undefined reference to `elf_end' > stacktool-in.o: In function `elf_open': > (.text+0xec7): undefined reference to `elf_version' > stacktool-in.o: In function `elf_open': > (.text+0xf29): undefined reference to `elf_begin' > stacktool-in.o: In function `elf_open': > (.text+0xf42): undefined reference to `gelf_getehdr' > stacktool-in.o: In function `elf_open': > (.text+0xf59): undefined reference to `elf_getshdrnum' > stacktool-in.o: In function `elf_open': > (.text+0xf6f): undefined reference to `elf_getshdrstrndx' > stacktool-in.o: In function `elf_open': > (.text+0xfc9): undefined reference to `elf_getscn' > stacktool-in.o: In function `elf_open': > (.text+0xfdd): undefined reference to `elf_ndxscn' > stacktool-in.o: In function `elf_open': > (.text+0xff2): undefined reference to `gelf_getshdr' > stacktool-in.o: In function `elf_open': > (.text+0x100e): undefined reference to `elf_strptr' > stacktool-in.o: In function `elf_open': > (.text+0x1029): undefined reference to `elf_getdata' > stacktool-in.o: In function `elf_open': > (.text+0x1101): undefined reference to `elf_nextscn' > stacktool-in.o: In function `elf_open': > (.text+0x119e): undefined reference to `gelf_getsym' > stacktool-in.o: In function `elf_open': > (.text+0x11b8): undefined reference to `elf_strptr' > stacktool-in.o: In function `elf_open': > (.text+0x13d4): undefined reference to `gelf_getrela' > collect2: error: ld returned 1 exit status > Makefile:33: recipe for target 'stacktool' failed > make[2]: *** [stacktool] Error 1 > Makefile:53: recipe for target 'stacktool' failed > make[1]: *** [stacktool] Error 2 > Makefile:1502: recipe for target 'tools/stacktool' failed > make: *** [tools/stacktool] Error 2 > > The patch below addresses this issue for me. > > -- > > From 9ec5827aa726300394c0155657820f2595008116 Mon Sep 17 00:00:00 2001 > From: Chris J Arges <chris.j.arges@xxxxxxxxxxxxx> > Date: Tue, 15 Sep 2015 16:45:27 +0000 > Subject: [PATCH] x86/stacktool: Fix LDFLAGS order in Makefile > > When building tools/stacktool I get a compiler error which causes libelf to not > properly link. This patch adjusts the LDFLAG after the object file, which > allows gcc to properly link. > > Signed-off-by: Chris J Arges <chris.j.arges@xxxxxxxxxxxxx> Makes sense (after reading the part in the ld man page about how the order matters for '-l' arguments). Not sure yet why it works for me without the patch. To avoid breaking bisection, this patch should be folded into patch 4 of the series (which I will do, if a v13 is necessary). Thanks! -- Josh -- To unsubscribe from this list: send the line "unsubscribe live-patching" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
