crypto/bio: drop float formating for UEFI

Using floating point is not supported in UEFI and can cause build
problems, for example due to SSE being disabled and x64 calling
convention passing floats in SSE registers.

Avoid those problems by not compiling the formating code for floating
point numbers.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19738)

diff --git a/crypto/bio/b_print.c b/crypto/bio/b_print.c
index 41b7f5e2f61d1edec04e2f61dae1d9f4a83dfbba..90c7d9a4ecaa53f9fb39165cfc86a9c526dc8d70 100644 (file)
--- a/crypto/bio/b_print.c
+++ b/crypto/bio/b_print.c
@@ -13,6 +13,7 @@
 #include "crypto/ctype.h"
 #include "internal/numbers.h"
 #include <openssl/bio.h>
+#include <openssl/opensslconf.h>
 
 /*
  * Copyright Patrick Powell 1995
@@ -31,8 +32,10 @@ static int fmtstr(char **, char **, size_t *, size_t *,
                   const char *, int, int, int);
 static int fmtint(char **, char **, size_t *, size_t *,
                   int64_t, int, int, int, int);
+#ifndef OPENSSL_SYS_UEFI
 static int fmtfp(char **, char **, size_t *, size_t *,
                  LDOUBLE, int, int, int, int);
+#endif
 static int doapr_outch(char **, char **, size_t *, size_t *, int);
 static int _dopr(char **sbuffer, char **buffer,
                  size_t *maxlen, size_t *retlen, int *truncated,
@@ -88,7 +91,9 @@ _dopr(char **sbuffer,
 {
     char ch;
     int64_t value;
+#ifndef OPENSSL_SYS_UEFI
     LDOUBLE fvalue;
+#endif
     char *strvalue;
     int min;
     int max;
@@ -259,6 +264,7 @@ _dopr(char **sbuffer,
                             min, max, flags))
                     return 0;
                 break;
+#ifndef OPENSSL_SYS_UEFI
             case 'f':
                 if (cflags == DP_C_LDOUBLE)
                     fvalue = va_arg(args, LDOUBLE);
@@ -292,6 +298,16 @@ _dopr(char **sbuffer,
                            flags, G_FORMAT))
                     return 0;
                 break;
+#else
+            case 'f':
+            case 'E':
+            case 'e':
+            case 'G':
+            case 'g':
+                /* not implemented for UEFI */
+                ERR_raise(ERR_LIB_BIO, ERR_R_UNSUPPORTED);
+                return 0;
+#endif
             case 'c':
                 if (!doapr_outch(sbuffer, buffer, &currlen, maxlen,
                                  va_arg(args, int)))
@@ -512,6 +528,8 @@ fmtint(char **sbuffer,
     return 1;
 }
 
+#ifndef OPENSSL_SYS_UEFI
+
 static LDOUBLE abs_val(LDOUBLE value)
 {
     LDOUBLE result = value;
@@ -803,6 +821,8 @@ fmtfp(char **sbuffer,
     return 1;
 }
 
+#endif /* OPENSSL_SYS_UEFI */
+
 #define BUFFER_INC  1024
 
 static int