[PATCH v2 0/1] gdb, fortran: Fix local variable lookup in Fortran parser

[Abdul Basit Ijaz <abdul.b.ijaz@intel.com>]

This change fixes https://sourceware.org/bugzilla/show_bug.cgi?id=34059.

The Fortran expression parser in GDB ("gdb/f-exp.y") previously performed
symbol lookup in this order when parsing identifiers:

- SEARCH_STRUCT_DOMAIN (types/structs)
- SEARCH_VFT ("C-like" name lookups for variables/types/functions)
- SEARCH_MODULE_DOMAIN (modules)

It searched for "types before variables", causing type names from shared
libraries to shadow local variable names.

This issue is fixed in the Fortran expression parser in GDB ("gdb/f-exp.y")
by prioritizing SEARCH_VFT over other search domains during symbol lookup.

Changes since V1:
- Fix this feedback from Kevin:
 https://sourceware.org/pipermail/gdb-patches/2026-April/227028.html

Thanks & Best Regards,
Abdul Basit

Abdul Basit Ijaz (1):
  gdb, fortran: Fix local variable lookup in Fortran parser

 gdb/f-exp.y                                   |  2 +-
 .../gdb.fortran/var-type-precedence-lib.c     | 30 ++++++++++
 .../gdb.fortran/var-type-precedence.exp       | 60 +++++++++++++++++++
 .../gdb.fortran/var-type-precedence.f90       | 40 +++++++++++++
 4 files changed, 131 insertions(+), 1 deletion(-)
 create mode 100644 gdb/testsuite/gdb.fortran/var-type-precedence-lib.c
 create mode 100644 gdb/testsuite/gdb.fortran/var-type-precedence.exp
 create mode 100644 gdb/testsuite/gdb.fortran/var-type-precedence.f90

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2.34.1

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