bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 14:53:58 -04:00
Code Issues Packages Projects Releases Wiki Activity

Kbuild: add Rust support

Browse Source 
Having most of the new files in place, we now enable Rust support
in the build system, including `Kconfig` entries related to Rust,
the Rust configuration printer and a few other bits.

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Finn Behrens <me@kloenk.de>
Signed-off-by: Finn Behrens <me@kloenk.de>
Co-developed-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com>
Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Co-developed-by: Sven Van Asbroeck <thesven73@gmail.com>
Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com>
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Signed-off-by: Boris-Chengbiao Zhou <bobo1239@web.de>
Co-developed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Co-developed-by: Douglas Su <d0u9.su@outlook.com>
Signed-off-by: Douglas Su <d0u9.su@outlook.com>
Co-developed-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl>
Signed-off-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl>
Co-developed-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Signed-off-by: Antonio Terceiro <antonio.terceiro@linaro.org>
Co-developed-by: Daniel Xu <dxu@dxuuu.xyz>
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Co-developed-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Signed-off-by: Björn Roy Baron <bjorn3_gh@protonmail.com>
Co-developed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Miguel Ojeda
2021-07-03 16:42:57 +02:00
parent 80db40bac8
commit 2f7ab1267d
19 changed files with 869 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

75
scripts/kconfig/confdata.c
View File

@@ -216,6 +216,13 @@ static const char *conf_get_autoheader_name(void)
return name ? name : "include/generated/autoconf.h";
}
static const char *conf_get_rustccfg_name(void)
{
char *name = getenv("KCONFIG_RUSTCCFG");
return name ? name : "include/generated/rustc_cfg";
}
static int conf_set_sym_val(struct symbol *sym, int def, int def_flags, char *p)
{
char *p2;
@@ -605,6 +612,9 @@ static const struct comment_style comment_style_c = {
static void conf_write_heading(FILE *fp, const struct comment_style *cs)
{
if (!cs)
return;
fprintf(fp, "%s\n", cs->prefix);
fprintf(fp, "%s Automatically generated file; DO NOT EDIT.\n",
@@ -745,6 +755,65 @@ static void print_symbol_for_c(FILE *fp, struct symbol *sym)
free(escaped);
}
static void print_symbol_for_rustccfg(FILE *fp, struct symbol *sym)
{
const char *val;
const char *val_prefix = "";
char *val_prefixed = NULL;
size_t val_prefixed_len;
char *escaped = NULL;
if (sym->type == S_UNKNOWN)
return;
val = sym_get_string_value(sym);
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
/*
* We do not care about disabled ones, i.e. no need for
* what otherwise are "comments" in other printers.
*/
if (*val == 'n')
return;
/*
* To have similar functionality to the C macro `IS_ENABLED()`
* we provide an empty `--cfg CONFIG_X` here in both `y`
* and `m` cases.
*
* Then, the common `fprintf()` below will also give us
* a `--cfg CONFIG_X="y"` or `--cfg CONFIG_X="m"`, which can
* be used as the equivalent of `IS_BUILTIN()`/`IS_MODULE()`.
*/
fprintf(fp, "--cfg=%s%s\n", CONFIG_, sym->name);
break;
case S_HEX:
if (val[0] != '0' || (val[1] != 'x' && val[1] != 'X'))
val_prefix = "0x";
break;
default:
break;
}
if (strlen(val_prefix) > 0) {
val_prefixed_len = strlen(val) + strlen(val_prefix) + 1;
val_prefixed = xmalloc(val_prefixed_len);
snprintf(val_prefixed, val_prefixed_len, "%s%s", val_prefix, val);
val = val_prefixed;
}
/* All values get escaped: the `--cfg` option only takes strings */
escaped = escape_string_value(val);
val = escaped;
fprintf(fp, "--cfg=%s%s=%s\n", CONFIG_, sym->name, val);
free(escaped);
free(val_prefixed);
}
/*
* Write out a minimal config.
* All values that has default values are skipped as this is redundant.
@@ -1132,6 +1201,12 @@ int conf_write_autoconf(int overwrite)
if (ret)
return ret;
ret = __conf_write_autoconf(conf_get_rustccfg_name(),
print_symbol_for_rustccfg,
NULL);
if (ret)
return ret;
/*
* Create include/config/auto.conf. This must be the last step because
* Kbuild has a dependency on auto.conf and this marks the successful