From 94aefdc760b1a7f77fe3a64d2ebf8c13645a49d0 Mon Sep 17 00:00:00 2001
From: lemon <lsof@mailbox.org>
Date: Mon, 20 Apr 2026 16:39:48 +0200
Subject: frontend: embed <limits.h>, fix asm names

---
 src/a_embedfilesdir.c | 56 +++++++++++++++++++++++++++++++++++++++++----------
 src/a_targ.c          |  1 +
 src/c.c               |  6 +++---
 3 files changed, 49 insertions(+), 14 deletions(-)

diff --git a/src/a_embedfilesdir.c b/src/a_embedfilesdir.c
index d07bb87..6500d84 100644
--- a/src/a_embedfilesdir.c
+++ b/src/a_embedfilesdir.c
@@ -86,17 +86,17 @@ typedef __builtin_va_list __gnuc_va_list;\n\
 ")},
 
 {"iso646.h", S("\
-#define and     &&\
-#define and_eq  &=\
-#define bitand  &\
-#define bitor   |\
-#define compl   ~\
-#define not     !\
-#define not_eq  !=\
-#define or      ||\
-#define or_eq   |=\
-#define xor     ^\
-#define xor_eq  ^=\
+#define and     &&\n\
+#define and_eq  &=\n\
+#define bitand  &\n\
+#define bitor   |\n\
+#define compl   ~\n\
+#define not     !\n\
+#define not_eq  !=\n\
+#define or      ||\n\
+#define or_eq   |=\n\
+#define xor     ^\n\
+#define xor_eq  ^=\n\
 ")},
 
 {"stdnoreturn.h", S("\
@@ -110,6 +110,40 @@ typedef __builtin_va_list __gnuc_va_list;\n\
 #define __alignas_is_defined 1\n\
 #define __alignof_is_defined 1\n\
 #endif\n\
+")},
+
+{"limits.h", S("\
+#pragma once\n\
+#define CHAR_BIT    8\n\
+#ifdef __CHAR_UNSIGNED__\n\
+#define CHAR_MAX    UCHAR_MAX\n\
+#define CHAR_MIN    0\n\
+#else\n\
+#define CHAR_MAX    SCHAR_MAX\n\
+#define CHAR_MIN    SCHAR_MIN\n\
+#endif\n\
+#define UCHAR_MAX   255\n\
+#define SCHAR_MAX   +127\n\
+#define SCHAR_MIN   (-128)\n\
+#define USHRT_MAX   65535\n\
+#define SHRT_MAX    32767\n\
+#define SHRT_MIN    (-32768)\n\
+#define MB_LEN_MAX  16\n\
+#define UINT_MAX    4294967295\n\
+#define INT_MAX     2147483647\n\
+#define INT_MIN     (-INT_MAX - 1)\n\
+#if __SIZEOF_LONG__ == __SIZEOF__INT__\n\
+#define ULONG_MAX   UINT_MAX\n\
+#define LONG_MAX    INT_MAX\n\
+#define LONG_MIN    INT_MIN\n\
+#else\n\
+#define ULONG_MAX   ULLONG_MAX\n\
+#define LONG_MAX    LLONG_MAX\n\
+#define LONG_MIN    LLONG_MIN\n\
+#endif\n\
+#define ULLONG_MAX  18446744073709551615ULL\n\
+#define LLONG_MAX   9223372036854775807LL\n\
+#define LLONG_MIN   (-LLONG_MAX-1)\n\
 ")},
 
    {NULL}
diff --git a/src/a_targ.c b/src/a_targ.c
index f6e060c..b54e3ec 100644
--- a/src/a_targ.c
+++ b/src/a_targ.c
@@ -146,6 +146,7 @@ putpredefmacros(void)
    cpp0define("__ORDER_BIG_ENDIAN__", "4321");
    cpp0define("__BYTE_ORDER__",
          targ_bigendian ? "__ORDER_BIG_ENDIAN__" : "__ORDER_LITTLE_ENDIAN__");
+   cpp0define("__USER_LABEL_PREFIX__", "");
 }
 
 bool
diff --git a/src/c.c b/src/c.c
index 3ef9cfc..4ff42b4 100644
--- a/src/c.c
+++ b/src/c.c
@@ -2955,10 +2955,10 @@ pdecl(DeclState *st, CComp *cm) {
    if (st->kind == DTOPLEVEL || st->kind == DFUNCVAR) {
       while (attrspec(cm, &st->attr)) ;
       if (match(cm, NULL, TKW__asm__) && expect(cm, '(', NULL)) {
-         peek(cm, &tk);
-         if (expect(cm, TKSTRLIT, "asm symbol name")) {
+         if (peek(cm, NULL) == TKSTRLIT) {
+            lex(cm, &tk);
             decl.sym = intern_(tk.s, tk.len);
-         }
+         } else expect(cm, TKSTRLIT, "asm symbol name");
          expect(cm, ')', NULL);
       }
       while (attrspec(cm, &st->attr)) ;
-- 
cgit v1.2.3