From 57ebf3b3238a165c1973ecdf96ba79f95d650fc9 Mon Sep 17 00:00:00 2001 From: Berke Güzel Date: Thu, 15 Oct 2026 12:29:25 +0300 Subject: Add soversion, version macros, and reserved term_options words The shared library now carries its major version in the SONAME (libterm.so.0), so an ABI break gets a new file name. The header gains TERM_VERSION, TERM_VERSION_MAJOR/MINOR/PATCH and TERM_VERSION_CODE, and term_version() returns the code the library was built with. A test checks the macros against meson.build's project version and against the runtime value. term_options ends with uint32_t reserved[8]. term_new() returns NULL if a word is nonzero, so later versions can give those words a meaning without misreading a caller's leftover data. All-zero options stay valid. Co-Authored-By: Claude Haiku 5.5 --- src/meson.build | 6 ++++++ src/screen.c | 3 +++ src/term.c | 5 +++++ 3 files changed, 14 insertions(+) (limited to 'src') diff --git a/src/meson.build b/src/meson.build index 694ee0e..7223caa 100644 --- a/src/meson.build +++ b/src/meson.build @@ -1,5 +1,9 @@ subdir('osc') +# The SONAME carries the major version. An ABI break bumps it, so an old +# binary keeps the old library. +term_soversion = meson.project_version().split('.')[0] + # The x86-64 SIMD kernels pick their level at run time (see simd.h), so the # library needs no ISA flags. -march in c_args sets the lowest level. term_lib = both_libraries('term', @@ -23,6 +27,8 @@ term_lib = both_libraries('term', include_directories: term_private_inc, dependencies: [m_dep], gnu_symbol_visibility: 'hidden', + version: meson.project_version(), + soversion: term_soversion, install: true ) diff --git a/src/screen.c b/src/screen.c index 87d6f2c..c41234f 100644 --- a/src/screen.c +++ b/src/screen.c @@ -847,6 +847,9 @@ struct term *term_new(const struct term_options *opt) static const struct term_options defaults; if (!opt) opt = &defaults; + for (size_t i = 0; i < sizeof(opt->reserved) / sizeof(opt->reserved[0]); i++) + if (opt->reserved[i]) + return NULL; int cols = opt->size.x < 1 ? 80 : opt->size.x; int rows = opt->size.y < 1 ? 24 : opt->size.y; if (cols > TERM_MAX_COLS) diff --git a/src/term.c b/src/term.c index 1b16670..bf8f3cf 100644 --- a/src/term.c +++ b/src/term.c @@ -8,6 +8,11 @@ const char *term_unicode_version(void) return UNICODE_DATA_VERSION; } +unsigned term_version(void) +{ + return TERM_VERSION_CODE; +} + void term_lock(struct term *t) { term_write_begin(t); -- cgit v1.2.3