[gcc r16-7216] [PATCH] picolibc: Use %:find-file for both test and access to picolibc.ld

[Jeff Law]

https://gcc.gnu.org/g:9839ae8f24180d20d8aea5de60a94f41dbfdcda8

commit r16-7216-g9839ae8f24180d20d8aea5de60a94f41dbfdcda8
Author: Keith Packard <keithp@keithp.com>
Date:   Sat Jan 31 07:00:26 2026 -0700

    [PATCH] picolibc: Use %:find-file for both test and access to picolibc.ld
    
    If the gcc driver and linker don't agree on what the search path for
    linker scripts is, then the driver may discover a file that
    the linker won't end up using. This results in linking failures
    when applications don't specific an explicit linker script.
    
    Fix this by duplicating the call to %:find-file for both
    test and in the parameter passed to the linker.
    
    gcc/
            * config/picolibc-spec.h (LIBC_LINK_SPEC): Use find-file for test
            and access to picolibc.ld.

Diff:
---
 gcc/config/picolibc-spec.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/config/picolibc-spec.h b/gcc/config/picolibc-spec.h
index d1024ced3e7f..def290ee0b12 100644
--- a/gcc/config/picolibc-spec.h
+++ b/gcc/config/picolibc-spec.h
@@ -39,7 +39,7 @@
  * Define vfscanf if --scanf is set
  */
 #define LIBC_LINK_SPEC							\
-  " %{!shared:%{!r:%{!T*: %:if-exists-then-else(%:find-file(" PICOLIBC_LD ") -T" PICOLIBC_LD ")}}}" \
+  " %{!shared:%{!r:%{!T*: %:if-exists-then-else(%:find-file(" PICOLIBC_LD ") -T%:find-file(" PICOLIBC_LD "))}}}" \
   " %{-printf=*:--defsym=" USER_LABEL_PREFIX "vfprintf=" USER_LABEL_PREFIX "__%*_vfprintf}" \
   " %{-scanf=*:--defsym=" USER_LABEL_PREFIX "vfscanf=" USER_LABEL_PREFIX "__%*_vfscanf}"