On Thu, 30 Nov 2023, Antonin Décimo wrote:
The literature online uses `data_seg` on x86 and `const_seg` on x64.
In my tests, using `const_seg` worked on all arches (x86, x64, arm,
arm64).
Hmm, that does indeed seem to be the case - I can confirm this.
We can use `#pragma section` and `__declspec(allocate("xxx"))`
instead.
Umm, this doesn't seem to work for me. With your example code below, with
foo_init renamed into main(), I don't get any working TLS callbacks, on
neither x86 nor x64, and linking produces the following warning:
LIBCMT.lib(tlssup.obj) : warning LNK4078: multiple '.CRT' sections found
with different attributes (40400040)
LIBCMT.lib(initializers.obj) : warning LNK4254: section '.CRT' (50000040)
merged into '.rdata' (40000040) with different attributes
This is tested and observed with MSVC 2022 17.8.0 and 17.9.1 preview 1.
If I replace your #pragma section with #pragma const_seg, it does work
though.
// Martin
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