abdelrahman/wizapp-stdlib
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Always reserve padding for structs that need it

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This commit is contained in:
Abdelrahman Said
2026-01-03 17:04:36 +00:00
parent b372447a46
commit 83b879a180
6 changed files with 9 additions and 15 deletions
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4
src/base/array/array.h
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@@ -86,8 +86,8 @@ typedef Str8 *Str8Array;
#else
#define _stack_array(TYPE, SIZE) struct {ArrayHeader header; \
TYPE items[SIZE]; \
wapp_misc_utils_padding_size(sizeof(ArrayHeader) + \
sizeof(TYPE) * SIZE);}
wapp_misc_utils_reserve_padding(sizeof(ArrayHeader) + \
sizeof(TYPE) * SIZE);}
#define wapp_array(TYPE, ...) \
(TYPE *)( \
(_stack_array(TYPE, _calc_array_capacity(TYPE, __VA_ARGS__))){ \

2
src/common/misc/misc_utils.h
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@@ -23,7 +23,7 @@ BEGIN_C_LINKAGE
#define PB(SIZE) (TB(SIZE) * 1000llu)
#define EB(SIZE) (PB(SIZE) * 1000llu)
#define wapp_misc_utils_padding_size(SIZE) u8 reserved_padding[sizeof(void *) - ((SIZE) % sizeof(void *))]
#define wapp_misc_utils_reserve_padding(SIZE) u8 reserved_padding[sizeof(void *) - ((SIZE) % sizeof(void *))]
#define U64_RSHIFT_OR_1(X) (((u64)X) | (((u64)X) >> 1))
#define U64_RSHIFT_OR_2(X) (((u64)X) | (((u64)X) >> 2))

4
src/os/allocators/arena/mem_arena.c
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@@ -23,9 +23,7 @@ struct Arena {
u64 capacity;
b8 committed;
#ifdef WAPP_PLATFORM_WINDOWS
wapp_misc_utils_padding_size(sizeof(u8 *) * 2 + sizeof(u64) + sizeof(b8));
#endif // ifdef WAPP_PLATFORM_WINDOWS
wapp_misc_utils_reserve_padding(sizeof(u8 *) * 2 + sizeof(u64) + sizeof(b8));
};
b8 wapp_mem_arena_init_custom(Arena **arena, u64 base_capacity, MemAllocFlags flags, b8 zero_buffer) {

6
src/os/shell/commander/commander_output.h
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@@ -5,6 +5,7 @@
#include "../../../common/aliases/aliases.h"
#include "../../../common/platform/platform.h"
#include "../../../common/misc/misc_utils.h"
#ifdef WAPP_PLATFORM_CPP
BEGIN_C_LINKAGE
@@ -31,10 +32,7 @@ struct CMDResult {
CMDError error;
b8 exited;
#ifdef WAPP_PLATFORM_WINDOWS
#include "../../../common/misc/misc_utils.h"
wapp_misc_utils_padding_size(sizeof(b8) + sizeof(i32) + sizeof(CMDError));
#endif // !WAPP_PLATFORM_WINDOWS
wapp_misc_utils_reserve_padding(sizeof(b8) + sizeof(i32) + sizeof(CMDError));
};
#ifdef WAPP_PLATFORM_CPP

2
src/os/shell/termcolour/win/termcolour_win.c
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@@ -19,7 +19,7 @@ struct TermcolourData {
WORD default_colour;
WORD current_colour;
wapp_misc_utils_padding_size(sizeof(HANDLE) + sizeof(WORD) + sizeof(WORD));
wapp_misc_utils_reserve_padding(sizeof(HANDLE) + sizeof(WORD) + sizeof(WORD));
};
wapp_intern void init_data(TermcolourData *data);

6
src/testing/tester/tester.h
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@@ -10,7 +10,7 @@
#ifdef WAPP_PLATFORM_CPP
BEGIN_C_LINKAGE
#define wapp_tester_result(PASSED) (TestFuncResult{wapp_str8_lit_ro(__func__), PASSED})
#define wapp_tester_result(PASSED) (TestFuncResult{wapp_str8_lit_ro(__func__), PASSED, {}})
#else
#define wapp_tester_result(PASSED) ((TestFuncResult){.name = wapp_str8_lit_ro(__func__), .passed = PASSED})
#endif // !WAPP_PLATFORM_CPP
@@ -22,9 +22,7 @@ struct TestFuncResult {
Str8 name;
b8 passed;
#ifdef WAPP_PLATFORM_WINDOWS
wapp_misc_utils_padding_size(sizeof(Str8RO) + sizeof(b8));
#endif // WAPP_PLATFORM_WINDOWS
wapp_misc_utils_reserve_padding(sizeof(Str8) + sizeof(b8));
};
typedef TestFuncResult(TestFunc)(void);