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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Jan Beulich <jbeulich@suse.com>
Cc: "xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
	Andrew Cooper <andrew.cooper3@citrix.com>, Wei Liu <wl@xen.org>
Subject: Re: [PATCH 6/8] x86/EFI: avoid use of GNU ld's --disable-reloc-section when possible
Date: Wed, 21 Apr 2021 17:20:53 +0200	[thread overview]
Message-ID: <YIBC1XWTQzjykk1k@Air-de-Roger> (raw)
In-Reply-To: <dada98e8-3e4a-94df-0678-bdd2a0e8de04@suse.com>

On Wed, Apr 21, 2021 at 02:03:49PM +0200, Jan Beulich wrote:
> On 21.04.2021 12:21, Roger Pau Monné wrote:
> > On Thu, Apr 01, 2021 at 11:46:44AM +0200, Jan Beulich wrote:
> >> @@ -189,7 +208,11 @@ EFI_LDFLAGS += --no-insert-timestamp
> >>  endif
> >>  
> >>  $(TARGET).efi: VIRT_BASE = 0x$(shell $(NM) efi/relocs-dummy.o | sed -n 's, A VIRT_START$$,,p')
> >> +ifeq ($(MKRELOC),:)
> >> +$(TARGET).efi: ALT_BASE :=
> >> +else
> >>  $(TARGET).efi: ALT_BASE = 0x$(shell $(NM) efi/relocs-dummy.o | sed -n 's, A ALT_START$$,,p')
> > 
> > Could you maybe check whether $(relocs-dummy) is set as the condition
> > here and use it here instead of efi/relocs-dummy.o?
> 
> I can use it in the ifeq() if you think that's neater (the current way
> is minimally shorter), but using it in the ALT_BASE assignment would
> make this differ more from the VIRT_BASE one, which I'd like to avoid.

Sorry, I think I'm slightly confused because when the linker can
produce the required relocations relocs-dummy variable is left empty,
so it won't be added to $(TARGET).efi.

But we still need to generate the efi/relocs-dummy.o file for the ELF
build I assume?

Thanks, Roger.


  reply	other threads:[~2021-04-21 15:21 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-01  9:43 [PATCH 0/8] x86/EFI: build adjustments Jan Beulich
2021-04-01  9:44 ` [PATCH 1/8] x86/EFI: drop stale section special casing when generating base relocs Jan Beulich
2021-04-01 11:51   ` Andrew Cooper
2021-04-01  9:44 ` [PATCH 2/8] x86/EFI: sections may not live at VA 0 in PE binaries Jan Beulich
2021-04-01 12:01   ` Andrew Cooper
2021-04-01 13:51     ` Jan Beulich
2021-04-21  8:52   ` Roger Pau Monné
2021-04-21 10:32     ` Jan Beulich
2021-04-21 12:57       ` Roger Pau Monné
2021-04-21 13:28         ` Jan Beulich
2021-04-01  9:45 ` [PATCH 3/8] x86/EFI: program headers are an ELF concept Jan Beulich
2021-04-21  9:11   ` Roger Pau Monné
2021-04-21 10:36     ` Jan Beulich
2021-04-21 14:21       ` Roger Pau Monné
2021-04-21 14:30         ` Jan Beulich
2021-04-01  9:45 ` [PATCH 4/8] x86/EFI: redo .reloc section bounds determination Jan Beulich
2021-04-21  9:46   ` Roger Pau Monné
2021-04-21 10:44     ` Jan Beulich
2021-04-21 14:54       ` Roger Pau Monné
2021-04-01  9:46 ` [PATCH 5/8] x86: drop use of prelink-efi.o Jan Beulich
2021-04-21  9:51   ` Roger Pau Monné
2021-04-01  9:46 ` [PATCH 6/8] x86/EFI: avoid use of GNU ld's --disable-reloc-section when possible Jan Beulich
2021-04-21 10:21   ` Roger Pau Monné
2021-04-21 12:03     ` Jan Beulich
2021-04-21 15:20       ` Roger Pau Monné [this message]
2021-04-21 15:34         ` Jan Beulich
2021-04-22  7:22           ` Roger Pau Monné
2021-04-22 10:42             ` Jan Beulich
2021-04-01  9:47 ` [PATCH 7/8] x86/EFI: keep debug info in xen.efi Jan Beulich
2021-04-21 11:15   ` Roger Pau Monné
2021-04-21 13:06     ` Jan Beulich
2021-04-21 15:30       ` Roger Pau Monné
2021-04-21 15:38         ` Jan Beulich
2021-04-22  8:14           ` Roger Pau Monné
2021-04-22 11:03             ` Jan Beulich
2021-04-22 14:56               ` Roger Pau Monné
2021-04-22 15:46                 ` Jan Beulich
2021-04-22 15:53                   ` Roger Pau Monné
2021-04-22 16:01                     ` Jan Beulich
2021-04-23  7:30                       ` Roger Pau Monné
2021-04-23  8:51                         ` Jan Beulich
2021-04-23 10:07                           ` Roger Pau Monné
2021-04-23 10:45                             ` Jan Beulich
2021-04-23 10:58                               ` Roger Pau Monné
2021-04-01  9:47 ` [PATCH 8/8] x86/EFI: don't have an overly large image size Jan Beulich
2021-04-21 11:18   ` Roger Pau Monné
2021-04-21 13:15     ` Jan Beulich
2021-04-15  9:53 ` Ping: [PATCH 0/8] x86/EFI: build adjustments Jan Beulich

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