gbdev/rgbds
1
0
Fork 0
mirror of https://github.com/gbdev/rgbds.git synced 2025-11-20 10:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

Implement -Wtruncation=level (#931)

Browse Source 
* Implement -Wtruncation=level

-Wtruncation=0 is the same as the current -Wno-truncation.
-Wtruncation=2 is the same as the current -Wtruncation.
-Wtruncation=1 is the new default; it's less strict, allowing
N-bit values to be between -2**N and 2**N (exclusive).

* Implement generic "parametrized warning" system

* Test more `Wtruncation` variants

Co-authored-by: ISSOtm <eldredhabert0@gmail.com>
This commit is contained in:
Rangi
2021-10-31 17:47:31 -04:00
committed by GitHub
parent 0ce66009c1
commit 11a6a81169
8 changed files with 267 additions and 47 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
include/asm/warning.h
View File

@@ -21,39 +21,48 @@ enum WarningState {
};
enum WarningID {
WARNING_ASSERT, /* Assertions */
WARNING_BACKWARDS_FOR, /* `for` loop with backwards range */
WARNING_BUILTIN_ARG, /* Invalid args to builtins */
WARNING_CHARMAP_REDEF, /* Charmap entry re-definition */
WARNING_DIV, /* Division undefined behavior */
WARNING_EMPTY_DATA_DIRECTIVE, /* `db`, `dw` or `dl` directive without data in ROM */
WARNING_EMPTY_MACRO_ARG, /* Empty macro argument */
WARNING_EMPTY_STRRPL, /* Empty second argument in `STRRPL` */
WARNING_LARGE_CONSTANT, /* Constants too large */
WARNING_LONG_STR, /* String too long for internal buffers */
WARNING_MACRO_SHIFT, /* Shift past available arguments in macro */
WARNING_NESTED_COMMENT, /* Comment-start delimiter in a block comment */
WARNING_OBSOLETE, /* Obsolete things */
WARNING_SHIFT, /* Shifting undefined behavior */
WARNING_SHIFT_AMOUNT, /* Strange shift amount */
WARNING_TRUNCATION, /* Implicit truncation loses some bits */
WARNING_USER, /* User warnings */
WARNING_ASSERT, // Assertions
WARNING_BACKWARDS_FOR, // `for` loop with backwards range
WARNING_BUILTIN_ARG, // Invalid args to builtins
WARNING_CHARMAP_REDEF, // Charmap entry re-definition
WARNING_DIV, // Division undefined behavior
WARNING_EMPTY_DATA_DIRECTIVE, // `db`, `dw` or `dl` directive without data in ROM
WARNING_EMPTY_MACRO_ARG, // Empty macro argument
WARNING_EMPTY_STRRPL, // Empty second argument in `STRRPL`
WARNING_LARGE_CONSTANT, // Constants too large
WARNING_LONG_STR, // String too long for internal buffers
WARNING_MACRO_SHIFT, // Shift past available arguments in macro
WARNING_NESTED_COMMENT, // Comment-start delimiter in a block comment
WARNING_OBSOLETE, // Obsolete things
WARNING_SHIFT, // Shifting undefined behavior
WARNING_SHIFT_AMOUNT, // Strange shift amount
WARNING_USER, // User warnings
NB_WARNINGS,
NB_PLAIN_WARNINGS,
/* Warnings past this point are "meta" warnings */
WARNING_ALL = NB_WARNINGS,
// Warnings past this point are "parametric" warnings, only mapping to a single flag
#define PARAM_WARNINGS_START NB_PLAIN_WARNINGS
// Implicit truncation loses some bits
WARNING_TRUNCATION_1 = PARAM_WARNINGS_START,
WARNING_TRUNCATION_2,
NB_PLAIN_AND_PARAM_WARNINGS,
#define NB_PARAM_WARNINGS (NB_PLAIN_AND_PARAM_WARNINGS - PARAM_WARNINGS_START)
// Warnings past this point are "meta" warnings
#define META_WARNINGS_START NB_PLAIN_AND_PARAM_WARNINGS
WARNING_ALL = META_WARNINGS_START,
WARNING_EXTRA,
WARNING_EVERYTHING,
NB_WARNINGS_ALL
#define NB_META_WARNINGS (NB_WARNINGS_ALL - NB_WARNINGS)
NB_WARNINGS,
#define NB_META_WARNINGS (NB_WARNINGS - META_WARNINGS_START)
};
extern enum WarningState warningStates[NB_WARNINGS];
extern enum WarningState warningStates[NB_PLAIN_AND_PARAM_WARNINGS];
extern bool warningsAreErrors;
void processWarningFlag(char const *flag);
void processWarningFlag(char *flag);
/*
* Used to warn the user about problems that don't prevent the generation of