Files
RedBear-OS/local/recipes/dev/libclc/source/clang/test/CodeGen/blocksignature.c
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

94 lines
3.5 KiB
C

// RUN: %clang_cc1 -fblocks -triple x86_64-apple-darwin9 %s -emit-llvm -o - | FileCheck %s -check-prefix=X64
// RUN: %clang_cc1 -fblocks -triple i686-apple-darwin9 %s -emit-llvm -o - | FileCheck %s -check-prefix=X32
// X64: @.str = private unnamed_addr constant [6 x i8] c"v8@?0\00"
// X64: @__block_literal_global = internal constant {{.*}} { ptr @_NSConcreteGlobalBlock, i32 1342177280,
// X64: @.str.1 = private unnamed_addr constant [12 x i8] c"i16@?0c8f12\00"
// X64: store i32 1073741824, ptr
// X32: [[STR1:@.*]] = private unnamed_addr constant [6 x i8] c"v4@?0\00"
// X32: @__block_descriptor_tmp = internal constant [[FULL_DESCRIPTOR_T:.*]] { i32 0, i32 20, ptr [[STR1]], ptr null }
// X32: @__block_literal_global = internal constant [[GLOBAL_LITERAL_T:.*]] { ptr @_NSConcreteGlobalBlock, i32 1342177280, i32 0, ptr @global_block_invoke{{.*}}, ptr @__block_descriptor_tmp }
// X32: [[STR2:@.*]] = private unnamed_addr constant [11 x i8] c"i12@?0c4f8\00"
// X32: @__block_descriptor_tmp{{.*}} = internal constant [[FULL_DESCRIPTOR_T]] { i32 0, i32 24, ptr [[STR2]], ptr null }
// X32: store i32 1073741824, ptr
int globalInt;
void (^global)(void) = ^{ ++globalInt; };
void foo(int param) {
extern int rand(void);
extern void rand_r(int (^b)(char x, float y)); // name a function present at runtime
while (param--)
rand_r(^(char x, float y){ return x + (int)y + param + rand(); }); // generate a local block binding param
}
#if 0
#include <stdio.h>
enum {
BLOCK_HAS_COPY_DISPOSE = (1 << 25),
BLOCK_HAS_CXX_OBJ = (1 << 26),
BLOCK_IS_GLOBAL = (1 << 28),
BLOCK_HAS_DESCRIPTOR = (1 << 29),
BLOCK_HAS_OBJC_TYPE = (1 << 30)
};
struct block_descriptor_big {
unsigned long int reserved;
unsigned long int size;
void (*copy)(void *dst, void *src); // conditional on BLOCK_HAS_COPY_DISPOSE
void (*dispose)(void *); // conditional on BLOCK_HAS_COPY_DISPOSE
const char *signature; // conditional on BLOCK_HAS_OBJC
const char *layout; // conditional on BLOCK_HAS_OBJC
};
struct block_descriptor_small {
unsigned long int reserved;
unsigned long int size;
const char *signature; // conditional on BLOCK_HAS_OBJC
const char *layout; // conditional on BLOCK_HAS_OBJC
};
struct block_layout_abi { // can't change
void *isa;
int flags;
int reserved;
void (*invoke)(void *, ...);
struct block_descriptor_big *descriptor;
};
const char *getBlockSignature(void *block) {
struct block_layout_abi *layout = (struct block_layout_abi *)block;
if ((layout->flags & BLOCK_HAS_OBJC_TYPE) != BLOCK_HAS_OBJC_TYPE) return NULL;
if (layout->flags & BLOCK_HAS_COPY_DISPOSE)
return layout->descriptor->signature;
else
return ((struct block_descriptor_small *)layout->descriptor)->signature;
}
int main(int argc, char *argv[]) {
printf("desired global flags: %d\n", BLOCK_IS_GLOBAL | BLOCK_HAS_OBJC_TYPE);
printf("desired stack flags: %d\n", BLOCK_HAS_OBJC_TYPE);
printf("types for global: %s\n", getBlockSignature(global));
printf("types for local: %s\n", getBlockSignature(^int(char x, float y) { return (int)(y + x); }));
return 0;
}
/*
x86_64
desired global flags: 1342177280
desired stack flags: 1073741824
types for global: v8@?0
types for local: i16@?0c8f12
i386
desired global flags: 1342177280
desired stack flags: 1073741824
types for global: v4@?0
types for local: i12@?0c4f8
*/
#endif