From 10e51d6dde2293ed5f5bf95d505c0b89c5db8f89 Mon Sep 17 00:00:00 2001 From: Maxim Cournoyer Date: Fri, 13 Jan 2023 17:27:38 -0500 Subject: platforms: Raise an exception when no suitable platform is found. This was motivated by #60786, which produced a cryptic, hard to understand backtrace. Given the following reproducer: (use-modules (guix packages) (gnu packages cross-base)) (define linux-libre-headers-cross-mips64el-linux-gnuabi64 (cross-kernel-headers "mips64el-linux-gnuabi64")) (package-arguments linux-libre-headers-cross-mips64el-linux-gnuabi64) Before this change: ice-9/boot-9.scm:1685:16: In procedure raise-exception: In procedure struct-vtable: Wrong type argument in position 1 (expecting struct): #f After this change: ice-9/boot-9.scm:1685:16: In procedure raise-exception: ERROR: 1. &platform-not-found-error: "mips64el-linux-gnuabi64" * guix/platform.scm (&platform-not-found-error): New condition. (platform-not-found-error?): New predicate. (false-if-platform-not-found): New syntax. (lookup-platform-by-system): Raise an exception when no platform is found. Update documentation. (lookup-platform-by-target): Likewise. (lookup-platform-by-target-or-system): Likewise, and guard lookup calls with false-if-platform-not-found. * gnu/packages/bootstrap.scm (glibc-dynamic-linker): Handle lookup-platform-by-system call to preserve existing behavior. Signed-off-by: Maxim Cournoyer --- gnu/packages/bootstrap.scm | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'gnu') diff --git a/gnu/packages/bootstrap.scm b/gnu/packages/bootstrap.scm index d2914fb5a7..9ea1a3e4d1 100644 --- a/gnu/packages/bootstrap.scm +++ b/gnu/packages/bootstrap.scm @@ -315,7 +315,8 @@ (define* (glibc-dynamic-linker (%current-system)))) "Return the name of Glibc's dynamic linker for SYSTEM." ;; See the 'SYSDEP_KNOWN_INTERPRETER_NAMES' cpp macro in libc. - (let ((platform (lookup-platform-by-system system))) + (let ((platform (false-if-platform-not-found + (lookup-platform-by-system system)))) (cond ((platform? platform) (platform-glibc-dynamic-linker platform)) -- cgit v1.2.3