From 501ad55982a8f92a7a95c76c75944d644870181d Mon Sep 17 00:00:00 2001 From: Ludovic Courtès Date: Thu, 12 Mar 2020 15:16:04 +0100 Subject: [PATCH] load: Make Guile run-time relocatable using /proc/self/exe. Import from http://git.savannah.gnu.org/cgit/guix.git/commit/?id=920f2c42ce3345dc1355a41377ebf01a33fdae51 --- libguile/load.c | 35 +++++++++++++++++++++++++++++------ 1 file changed, 29 insertions(+), 6 deletions(-) diff --git a/libguile/load.c b/libguile/load.c index c2ee5093a..128cdf95a 100644 --- a/libguile/load.c +++ b/libguile/load.c @@ -26,6 +26,7 @@ #include #include +#include #include "libguile/_scm.h" #include "libguile/alist.h" @@ -325,6 +326,32 @@ scm_init_load_path () SCM cpath = SCM_EOL; #ifdef SCM_LIBRARY_DIR + char *program, *bin_dir, *prefix, *module_dir, *ccache_dir; + + /* Determine the source and compiled module directories at run-time, + relative to the executable's location. + + Note: Use /proc/self/exe instead of argv[0] because the latter is + not necessarily an absolute, nor a valid file name. */ + + program = scm_gc_malloc_pointerless (256, "string"); + readlink ("/proc/self/exe", program, 256); + + bin_dir = dirname (strdupa (program)); + + prefix = scm_gc_malloc_pointerless (strlen (bin_dir) + 4, "string"); + strcpy (prefix, bin_dir); + strcat (prefix, "/.."); + prefix = canonicalize_file_name (prefix); + + module_dir = scm_gc_malloc_pointerless (strlen (prefix) + 50, "string"); + strcpy (module_dir, prefix); + strcat (module_dir, "/share/guile/" SCM_EFFECTIVE_VERSION); + + ccache_dir = scm_gc_malloc_pointerless (strlen (prefix) + 50, "string"); + strcpy (ccache_dir, prefix); + strcat (ccache_dir, "/lib/guile/" SCM_EFFECTIVE_VERSION "/ccache"); + env = scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_PATH")); if (env && strcmp (env, "") == 0) /* special-case interpret system-path=="" as meaning no system path instead @@ -333,10 +360,7 @@ scm_init_load_path () else if (env) path = scm_parse_path (scm_from_locale_string (env), path); else - path = scm_list_4 (scm_from_locale_string (SCM_LIBRARY_DIR), - scm_from_locale_string (SCM_SITE_DIR), - scm_from_locale_string (SCM_GLOBAL_SITE_DIR), - scm_from_locale_string (SCM_PKGDATA_DIR)); + path = scm_list_1 (scm_from_locale_string (module_dir)); env = scm_i_mirror_backslashes (getenv ("GUILE_SYSTEM_COMPILED_PATH")); if (env && strcmp (env, "") == 0) @@ -346,8 +370,7 @@ scm_init_load_path () cpath = scm_parse_path (scm_from_locale_string (env), cpath); else { - cpath = scm_list_2 (scm_from_locale_string (SCM_CCACHE_DIR), - scm_from_locale_string (SCM_SITE_CCACHE_DIR)); + cpath = scm_list_1 (scm_from_locale_string (ccache_dir)); } #endif /* SCM_LIBRARY_DIR */ -- 2.24.0 loy-managed-host): Likewise. (maybe-raise-unsupported-configuration-error): Likewise. * gnu/packages.scm (search-patch): Likewise. * gnu/services.scm (%service-with-default-value): Likewise. (files->etc-directory): Likewise. (fold-services): Likewise. * gnu/system.scm (locale-name->definition*): Likewise. * gnu/system/mapped-devices.scm (check-device-initrd-modules): Likewise. (check-luks-device): Likewise. * guix/channels.scm (latest-channel-instance): Likewise. * guix/cve.scm (json->cve-items): Likewise. * guix/git-authenticate.scm (commit-signing-key): Likewise. (commit-authorized-keys): Likewise. (authenticate-commit): Likewise. (verify-introductory-commit): Likewise. * guix/remote.scm (remote-pipe-for-gexp): Likewise. * guix/scripts/graph.scm (assert-package): Likewise. * guix/scripts/offload.scm (private-key-from-file*): Likewise. * guix/ssh.scm (authenticate-server*): Likewise. (open-ssh-session): Likewise. (remote-inferior): Likewise. * guix/ui.scm (matching-generations): Likewise. * guix/upstream.scm (package-update): Likewise. * tests/channels.scm ("latest-channel-instances, missing introduction for 'guix'"): Catch 'formatted-message?'. ("authenticate-channel, wrong first commit signer"): Likewise. * tests/lint.scm ("patches: not found"): Adjust message string. * tests/packages.scm ("patch not found yields a run-time error"): Catch 'formatted-message?'. * guix/lint.scm (check-patch-file-names): Handle 'formatted-message?'. (check-derivation): Ditto. Ludovic Courtès 2020-07-25utils: Move '&fix-hint' to (guix diagnostics)....* guix/utils.scm (&fix-hint): Move to... * guix/diagnostics.scm (&fix-hint): ... here. * gnu.scm: Adjust imports accordingly. * gnu/system/mapped-devices.scm: Likewise. * guix/channels.scm: Likewise. * guix/profiles.scm: Likewise. * guix/scripts/system/reconfigure.scm: Likewise. * guix/ssh.scm: Likewise. Ludovic Courtès 2020-07-25utils: Move <location> and '&error-location' to (guix diagnostics)....* guix/utils.scm (<location>, source-properties->location) (location->source-properties, &error-location): Move to... * guix/diagnostics.scm: ... here. * gnu.scm: Adjust imports accordingly. * gnu/machine.scm: Likewise. * gnu/system.scm: Likewise. * gnu/tests.scm: Likewise. * guix/inferior.scm: Likewise. * tests/channels.scm: Likewise. * tests/packages.scm: Likewise. Ludovic Courtès