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fixincludes: Fix up powerpc floatn.h tweaks [PR107059]

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On Wed, Sep 28, 2022 at 12:23:31AM +0000, Joseph Myers wrote:
> In general the changes match those made by fixincludes, though I think
> the ones in sysdeps/powerpc/bits/floatn.h, where the header tests
> __LDBL_MANT_DIG__ == 113 or uses #elif, wouldn't match the existing
> fixincludes patterns.

You're right, missed that.
The header has:
 /* Defined to a complex binary128 type if __HAVE_FLOAT128 is 1.  */
 # if __HAVE_FLOAT128
 #  if __LDBL_MANT_DIG__ == 113 && defined __cplusplus
 typedef long double _Float128;
 #   define __CFLOAT128 _Complex long double
 #  elif !__GNUC_PREREQ (7, 0) || defined __cplusplus
 /* The type _Float128 exist for powerpc only since GCC 7.0.  */
 typedef __float128 _Float128;
 /* Add a typedef for older GCC and C++ compilers which don't natively support
    _Complex _Float128.  */
 typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__KC__)));
 #   define __CFLOAT128 __cfloat128
 #  else
 #   define __CFLOAT128 _Complex _Float128
 #  endif
 # endif
and my current rules don't do anything about that.

The following patch fixes that.
I've run additionally
MACRO_LIST=`pwd`/../gcc/macro_list TARGET_MACHINE=x86_64-pc-linux-gnu \
  ../fixincludes/fixinc.sh /tmp/include-fixed \
    `echo /usr/src/libc | sed -e :a -e 's,[^/]*/\.\.\/,,' -e ta`
in the builddir/fixincludes directory where /usr/src/libc is latest glibc
trunk checkout and seems the remaining defined __cplusplus cases in the floatn.h
and floatn-common.h headers are ok or acceptable.
The remaining cases are:
 #if __GNUC_PREREQ (7, 0) && !defined __cplusplus
 # define __HAVE_FLOATN_NOT_TYPEDEF 1
 #else
 # define __HAVE_FLOATN_NOT_TYPEDEF 0
 #endif
which is IMHO ok because this is only used in tgmath.h or tgmath-like math.h
stuff which is C only, as C++ doesn't have _Generic.
Another case are the following 3 snippets:
 #  if !__GNUC_PREREQ (7, 0) || defined __cplusplus
 #   error "_Float128X supported but no constant suffix"
 #  else
 #   define __f128x(x) x##f128x
 #  endif
...
 #  if !__GNUC_PREREQ (7, 0) || defined __cplusplus
 #   error "_Float128X supported but no complex type"
 #  else
 #   define __CFLOAT128X _Complex _Float128x
 #  endif
...
 #  if !__GNUC_PREREQ (7, 0) || defined __cplusplus
 #   error "_Float128x supported but no type"
 #  endif
but as no target has _Float128x right now and don't see it
coming soon, it isn't a big deal (on the glibc side it is of
course ok to adjust those).
OT, besides floatn.h and floatn-common.h headers, the only
one remaining in /tmp/include-fixed is sysdeps/arm/unwind.h, perhaps
-#if defined(linux) || defined(__NetBSD__)
+#if defined(__linux__) || defined(__NetBSD__)
should be done in that header (and libgcc/config/arm/unwind-arm.h
too).

2022-10-07  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/107059
	* inclhack.def (glibc_cxx_floatn_2): Handle #elif the same as #if.
	(glibc_cxx_floatn_4): New.
	* fixincl.x: Regenerated.
	* tests/base/bits/floatn.h: Regenerated.
This commit is contained in:
Jakub Jelinek
2022-10-07 08:56:04 +02:00
parent b6ab375cbd
commit 62ec780ac0
3 changed files with 87 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
fixincludes/fixincl.x
View File

@@ -2,11 +2,11 @@
*
* DO NOT EDIT THIS FILE (fixincl.x)
*
* It has been AutoGen-ed September 27, 2022 at 12:21:44 PM by AutoGen 5.18.16
* It has been AutoGen-ed September 28, 2022 at 07:56:15 PM by AutoGen 5.18.16
* From the definitions inclhack.def
* and the template file fixincl
*/
/* DO NOT SVN-MERGE THIS FILE, EITHER Tue Sep 27 12:21:44 CEST 2022
/* DO NOT SVN-MERGE THIS FILE, EITHER Wed Sep 28 19:56:15 CEST 2022
*
* You must regenerate it. Use the ./genfixes script.
*
@@ -15,7 +15,7 @@
* certain ANSI-incompatible system header files which are fixed to work
* correctly with ANSI C and placed in a directory that GNU C will search.
*
* This file contains 270 fixup descriptions.
* This file contains 271 fixup descriptions.
*
* See README for more information.
*
@@ -4167,7 +4167,7 @@ tSCC zGlibc_Cxx_Floatn_2List[] =
* content selection pattern - do fix if pattern found
*/
tSCC zGlibc_Cxx_Floatn_2Select0[] =
"^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n\
"^([ \t]*#[ \t]*(el)?if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n\
(([ \t]*/\\*[^\n\
]*\\*/\n\
)?[ \t]*typedef[ \t]+[^\n\
@@ -4183,7 +4183,7 @@ static tTestDesc aGlibc_Cxx_Floatn_2Tests[] = {
static const char* apzGlibc_Cxx_Floatn_2Patch[] = {
"format",
"%1(defined __cplusplus && !__GNUC_PREREQ (13, 0))\n\
%2",
%3",
(char*)NULL };
/* * * * * * * * * * * * * * * * * * * * * * * * * *
@@ -4231,6 +4231,46 @@ static const char* apzGlibc_Cxx_Floatn_3Patch[] = {
%2",
(char*)NULL };
/* * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Description of Glibc_Cxx_Floatn_4 fix
*/
tSCC zGlibc_Cxx_Floatn_4Name[] =
"glibc_cxx_floatn_4";
/*
* File name selection pattern
*/
tSCC zGlibc_Cxx_Floatn_4List[] =
"bits/floatn.h\0*/bits/floatn.h\0";
/*
* Machine/OS name selection pattern
*/
#define apzGlibc_Cxx_Floatn_4Machs (const char**)NULL
/*
* content selection pattern - do fix if pattern found
*/
tSCC zGlibc_Cxx_Floatn_4Select0[] =
"^([ \t]*#[ \t]*if __LDBL_MANT_DIG__ == 113 && )defined __cplusplus\n\
(([ \t]*/\\*[^\n\
]*\\*/\n\
)?[ \t]*typedef[ \t]+[^\n\
]*[ \t]+_Float128;)";
#define GLIBC_CXX_FLOATN_4_TEST_CT 1
static tTestDesc aGlibc_Cxx_Floatn_4Tests[] = {
{ TT_EGREP, zGlibc_Cxx_Floatn_4Select0, (regex_t*)NULL }, };
/*
* Fix Command Arguments for Glibc_Cxx_Floatn_4
*/
static const char* apzGlibc_Cxx_Floatn_4Patch[] = {
"format",
"%1defined __cplusplus && !__GNUC_PREREQ (13, 0)\n\
%2",
(char*)NULL };
/* * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Description of Glibc_Mutex_Init fix
@@ -10998,9 +11038,9 @@ static const char* apzX11_SprintfPatch[] = {
*
* List of all fixes
*/
#define REGEX_COUNT 308
#define REGEX_COUNT 309
#define MACH_LIST_SIZE_LIMIT 187
#define FIX_COUNT 270
#define FIX_COUNT 271
/*
* Enumerate the fixes
@@ -11106,6 +11146,7 @@ typedef enum {
GLIBC_CXX_FLOATN_1_FIXIDX,
GLIBC_CXX_FLOATN_2_FIXIDX,
GLIBC_CXX_FLOATN_3_FIXIDX,
GLIBC_CXX_FLOATN_4_FIXIDX,
GLIBC_MUTEX_INIT_FIXIDX,
GLIBC_STDINT_FIXIDX,
GLIBC_STRNCPY_FIXIDX,
@@ -11779,6 +11820,11 @@ tFixDesc fixDescList[ FIX_COUNT ] = {
GLIBC_CXX_FLOATN_3_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
aGlibc_Cxx_Floatn_3Tests, apzGlibc_Cxx_Floatn_3Patch, 0 },
{ zGlibc_Cxx_Floatn_4Name, zGlibc_Cxx_Floatn_4List,
apzGlibc_Cxx_Floatn_4Machs,
GLIBC_CXX_FLOATN_4_TEST_CT, FD_MACH_ONLY | FD_SUBROUTINE,
aGlibc_Cxx_Floatn_4Tests, apzGlibc_Cxx_Floatn_4Patch, 0 },
{ zGlibc_Mutex_InitName, zGlibc_Mutex_InitList,
apzGlibc_Mutex_InitMachs,
GLIBC_MUTEX_INIT_TEST_CT, FD_MACH_ONLY,

24
fixincludes/inclhack.def
View File

@@ -2060,11 +2060,11 @@ fix = {
fix = {
hackname = glibc_cxx_floatn_2;
files = bits/floatn.h, bits/floatn-common.h, "*/bits/floatn.h", "*/bits/floatn-common.h";
select = "^([ \t]*#[ \t]*if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n"
select = "^([ \t]*#[ \t]*(el)?if !__GNUC_PREREQ \\(7, 0\\) \\|\\| )defined __cplusplus\n"
"(([ \t]*/\\*[^\n]*\\*/\n)?"
"[ \t]*typedef[ \t]+[^\n]*[ \t]+_Float(16|32|64|128)x?([ \t]+__attribute__ \\(\\(__mode__ \\(__HF__\\)\\)\\))?;)";
c_fix = format;
c_fix_arg = "%1(defined __cplusplus && !__GNUC_PREREQ (13, 0))\n%2";
c_fix_arg = "%1(defined __cplusplus && !__GNUC_PREREQ (13, 0))\n%3";
test_text = <<-EOT
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
typedef float _Float16 __attribute__ ((__mode__ (__HF__)));
@@ -2072,6 +2072,10 @@ fix = {
# if !__GNUC_PREREQ (7, 0) || defined __cplusplus
typedef __float128 _Float128;
# endif
# if 0
# elif !__GNUC_PREREQ (7, 0) || defined __cplusplus
typedef __float128 _Float128;
# endif
EOT;
};
@@ -2111,6 +2115,22 @@ fix = {
EOT;
};
fix = {
hackname = glibc_cxx_floatn_4;
files = bits/floatn.h, "*/bits/floatn.h";
select = "^([ \t]*#[ \t]*if __LDBL_MANT_DIG__ == 113 && )defined __cplusplus\n"
"(([ \t]*/\\*[^\n]*\\*/\n)?"
"[ \t]*typedef[ \t]+[^\n]*[ \t]+_Float128;)";
c_fix = format;
c_fix_arg = "%1defined __cplusplus && !__GNUC_PREREQ (13, 0)\n%2";
test_text = <<-EOT
# if __LDBL_MANT_DIG__ == 113 && defined __cplusplus
typedef long double _Float128;
# define __CFLOAT128 _Complex long double
# endif
EOT;
};
/* glibc-2.3.5 defines pthread mutex initializers incorrectly,
* so we replace them with versions that correspond to the
* definition.

12
fixincludes/tests/base/bits/floatn.h
View File

@@ -45,6 +45,10 @@ typedef float _Float16 __attribute__ ((__mode__ (__HF__)));
# if !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 0))
typedef __float128 _Float128;
# endif
# if 0
# elif !__GNUC_PREREQ (7, 0) || (defined __cplusplus && !__GNUC_PREREQ (13, 0))
typedef __float128 _Float128;
# endif
#endif /* GLIBC_CXX_FLOATN_2_CHECK */
@@ -72,3 +76,11 @@ typedef _Complex float __cfloat128 __attribute__ ((__mode__ (__TC__)));
# define __CFLOAT64 _Complex _Float64
# endif
#endif /* GLIBC_CXX_FLOATN_3_CHECK */
#if defined( GLIBC_CXX_FLOATN_4_CHECK )
# if __LDBL_MANT_DIG__ == 113 && defined __cplusplus && !__GNUC_PREREQ (13, 0)
typedef long double _Float128;
# define __CFLOAT128 _Complex long double
# endif
#endif /* GLIBC_CXX_FLOATN_4_CHECK */