[Bug 288000] dtrace: fix symbol address resolving

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=288000

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A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=12bef37a824c52582ee8f38699b8ae4fde17068d

commit 12bef37a824c52582ee8f38699b8ae4fde17068d
Author:     Jiacong Fang <zldrobit@gmail.com>
AuthorDate: 2025-07-07 18:51:51 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2025-07-07 20:16:31 +0000

    dtrace: fix symbol address resolution

    Dtrace assumes only ELF sections of type SHT_PROGBITS or SHT_NOBITS
    occupy memory space. However, sections with SHF_ALLOC flag also consume
    memory space. Moreover, the symbol address initialization skips symbols
    at the very beginning of a section in ET_REL KLDs.

    Fix: Check section flag for calculating section offset, and disable the
    skipping at the beginning of a section.

    PR:             288000
    Reviewed by:    markj
    MFC after:      2 weeks
    Differential Revision:  https://reviews.freebsd.org/D51188

 cddl/contrib/opensolaris/lib/libdtrace/common/dt_module.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

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