From 5676c9e7ebcec9af526c59ece1faf2e8b15e457c Mon Sep 17 00:00:00 2001 From: Sébastien Marie Date: Fri, 25 Feb 2022 08:49:25 +0000 Subject: initial OpenBSD support --- src/build_settings.cpp | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'src/build_settings.cpp') diff --git a/src/build_settings.cpp b/src/build_settings.cpp index 610e4f847..72a4b35cc 100644 --- a/src/build_settings.cpp +++ b/src/build_settings.cpp @@ -16,6 +16,7 @@ enum TargetOsKind { TargetOs_linux, TargetOs_essence, TargetOs_freebsd, + TargetOs_openbsd, TargetOs_wasi, TargetOs_js, @@ -53,6 +54,7 @@ String target_os_names[TargetOs_COUNT] = { str_lit("linux"), str_lit("essence"), str_lit("freebsd"), + str_lit("openbsd"), str_lit("wasi"), str_lit("js"), @@ -354,6 +356,15 @@ gb_global TargetMetrics target_freebsd_amd64 = { str_lit("e-m:w-i64:64-f80:128-n8:16:32:64-S128"), }; +gb_global TargetMetrics target_openbsd_amd64 = { + TargetOs_openbsd, + TargetArch_amd64, + 8, + 16, + str_lit("x86_64-unknown-openbsd-elf"), + str_lit("e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"), +}; + gb_global TargetMetrics target_essence_amd64 = { TargetOs_essence, TargetArch_amd64, @@ -417,6 +428,7 @@ gb_global NamedTargetMetrics named_targets[] = { { str_lit("windows_amd64"), &target_windows_amd64 }, { str_lit("freebsd_386"), &target_freebsd_386 }, { str_lit("freebsd_amd64"), &target_freebsd_amd64 }, + { str_lit("openbsd_amd64"), &target_openbsd_amd64 }, { str_lit("freestanding_wasm32"), &target_freestanding_wasm32 }, { str_lit("wasi_wasm32"), &target_wasi_wasm32 }, { str_lit("js_wasm32"), &target_js_wasm32 }, @@ -723,6 +735,7 @@ String internal_odin_root_dir(void) { #elif defined(GB_SYSTEM_DRAGONFLYBSD) len = readlink("/proc/curproc/file", &path_buf[0], path_buf.count); #else + // XXX OpenBSD len = readlink("/proc/self/exe", &path_buf[0], path_buf.count); #endif if(len == 0) { @@ -922,6 +935,8 @@ void init_build_context(TargetMetrics *cross_target) { #endif #elif defined(GB_SYSTEM_FREEBSD) metrics = &target_freebsd_amd64; + #elif defined(GB_SYSTEM_OPENBSD) + metrics = &target_openbsd_amd64; #elif defined(GB_CPU_ARM) metrics = &target_linux_arm64; #else @@ -980,6 +995,9 @@ void init_build_context(TargetMetrics *cross_target) { case TargetOs_freebsd: bc->link_flags = str_lit("-arch x86-64 "); break; + case TargetOs_openbsd: + bc->link_flags = str_lit("-arch x86-64 "); + break; } } else if (bc->metrics.arch == TargetArch_i386) { switch (bc->metrics.os) { -- cgit v1.2.3 From ae5cb09041f79a2fcda27ab14aa66c6a4e098f8d Mon Sep 17 00:00:00 2001 From: Sébastien Marie Date: Fri, 25 Feb 2022 17:59:57 +0000 Subject: internal_odin_root_dir: readlink could fail --- src/build_settings.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/build_settings.cpp') diff --git a/src/build_settings.cpp b/src/build_settings.cpp index 72a4b35cc..6b22ab4e7 100644 --- a/src/build_settings.cpp +++ b/src/build_settings.cpp @@ -738,7 +738,7 @@ String internal_odin_root_dir(void) { // XXX OpenBSD len = readlink("/proc/self/exe", &path_buf[0], path_buf.count); #endif - if(len == 0) { + if(len == 0 || len == -1) { return make_string(nullptr, 0); } if (len < path_buf.count) { -- cgit v1.2.3 From 8e270d3a99fc4a2369c622ae2de6395d7bfeb0c9 Mon Sep 17 00:00:00 2001 From: Sébastien Marie Date: Sat, 26 Feb 2022 08:19:41 +0000 Subject: openbsd: poor man implementation for getting executable path it tries to get executable path from argv[0]. it is unreliable and unsecure, but should be fine enough for the considered use-case. it still doesn't address all possible cases. --- src/build_settings.cpp | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) (limited to 'src/build_settings.cpp') diff --git a/src/build_settings.cpp b/src/build_settings.cpp index 6b22ab4e7..c40a70069 100644 --- a/src/build_settings.cpp +++ b/src/build_settings.cpp @@ -1,4 +1,4 @@ -#if defined(GB_SYSTEM_FREEBSD) +#if defined(GB_SYSTEM_FREEBSD) || defined(GB_SYSTEM_OPENBSD) #include #include #endif @@ -734,9 +734,36 @@ String internal_odin_root_dir(void) { len = readlink("/proc/curproc/exe", &path_buf[0], path_buf.count); #elif defined(GB_SYSTEM_DRAGONFLYBSD) len = readlink("/proc/curproc/file", &path_buf[0], path_buf.count); -#else - // XXX OpenBSD +#elif defined(GB_SYSTEM_LINUX) len = readlink("/proc/self/exe", &path_buf[0], path_buf.count); +#elif defined(GB_SYSTEM_OPENBSD) + int error; + int mib[] = { + CTL_KERN, + KERN_PROC_ARGS, + getpid(), + KERN_PROC_ARGV, + }; + // get argv size + error = sysctl(mib, 4, NULL, (size_t *) &len, NULL, 0); + if (error == -1) { + // sysctl error + return make_string(nullptr, 0); + } + // get argv + char **argv = (char **)gb_malloc(len); + error = sysctl(mib, 4, argv, (size_t *) &len, NULL, 0); + if (error == -1) { + // sysctl error + gb_mfree(argv); + return make_string(nullptr, 0); + } + // copy argv[0] to path_buf + len = gb_strlen(argv[0]); + if(len < path_buf.count) { + gb_memmove(&path_buf[0], argv[0], len); + } + gb_mfree(argv); #endif if(len == 0 || len == -1) { return make_string(nullptr, 0); -- cgit v1.2.3