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[Bug 1001142] User defined linker sections.
- From: bugzilla-daemon at bugs dot ecos dot sourceware dot org
- To: unassigned at bugs dot ecos dot sourceware dot org
- Date: Mon, 14 Feb 2011 12:34:03 +0000
- Subject: [Bug 1001142] User defined linker sections.
- Auto-submitted: auto-generated
- References: <bug-1001142-777@http.bugs.ecos.sourceware.org/>
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--- Comment #9 from Sergei Gavrikov <sergei.gavrikov@gmail.com> 2011-02-14 12:34:01 GMT ---
(In reply to comment #8)
> (In reply to comment #7)
> > (In reply to comment #6)
[snip]
> > > I do agree that the name "SECTION_user()" could lead to some confusion
> > > with the existing SECTION_*() macros which have a different number of
> > > parameters. I would be happy to use a macro name such as
> > > "USER_SECTION()" instead.
> >
> > John, then I "found" such a name too :-), and I like this name and now I
> > would argee with your points about macro placement (cortexm.ld).
>
> Me too, do you need me to produce a new patch?
So, we are happy with USER_SECTION(). What's about those SECTION_START,
SECTION_END definitions in the Attachment 1116 ? Will be they ever
used then? IMO, the names are too generic and seem like the "reserved"
words ...
If you need those defs, what is about USER_LABEL() instead?
#define USER_LABEL(_label_) \
...
If we do not need those defs at all, I would be happy with (not tested)
--- a/packages/hal/cortexm/arch/current/src/cortexm.ld
+++ b/packages/hal/cortexm/arch/current/src/cortexm.ld
@@ -268,5 +268,11 @@ OUTPUT_FORMAT(elf32-bigarm)
#define SECTIONS_END . = ALIGN(4); _end = .; PROVIDE (end = .);
+#define USER_SECTION(_name_, _region_, _vma_, _lma_) \
+ . ## _name_ _vma_ : _lma_ \
+ { __ ## _name_ ## _start = ABSOLUTE (.); \
+ *(. ## _name_)* \
+ __ ## _name_ ## _end = ABSOLUTE (.); }
+
#include <pkgconf/hal_cortexm.h>
#include CYGHWR_MEMORY_LAYOUT_LDI
Comments?
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