Fix warnings building linux-atomic.c and fptr.c on hppa64-linux

The file fptr.c is specific to 32-bit hppa-linux and should not be
included in LIB2ADD on hppa64-linux.

There is a builtin type mismatch in linux-atomic.c using the type
long long unsigned int for 64-bit atomic operations on hppa64-linux.

2021-10-27  John David Anglin  <danglin@gcc.gnu.org>

libgcc/ChangeLog:

	* config.host (hppa*64*-*-linux*): Don't add pa/t-linux to
	tmake_file.
	* config/pa/linux-atomic.c: Define u8, u16 and u64 types.
	Use them in FETCH_AND_OP_2, OP_AND_FETCH_2, COMPARE_AND_SWAP_2,
	SYNC_LOCK_TEST_AND_SET_2 and SYNC_LOCK_RELEASE_1 macros.
	* config/pa/t-linux64 (LIB1ASMSRC): New define.
	(LIB1ASMFUNCS): Revise.
	(HOST_LIBGCC2_CFLAGS): Add "-DLINUX=1".

2 files changed, 61 insertions, 53 deletions

diff --git a/libgcc/config/pa/linux-atomic.c b/libgcc/config/pa/linux-atomic.c
index c882b55a127..500a3652499 100644
--- a/libgcc/config/pa/linux-atomic.c
+++ b/libgcc/config/pa/linux-atomic.c
@@ -28,6 +28,14 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 #define EBUSY   16
 #define ENOSYS 251 
 
+typedef unsigned char u8;
+typedef short unsigned int u16;
+#ifdef __LP64__
+typedef long unsigned int u64;
+#else
+typedef long long unsigned int u64;
+#endif
+
 /* PA-RISC 2.0 supports out-of-order execution for loads and stores.
    Thus, we need to synchonize memory accesses.  For more info, see:
    "Advanced Performance Features of the 64-bit PA-8000" by Doug Hunt.
@@ -117,26 +125,26 @@ __kernel_cmpxchg2 (volatile void *mem, const void *oldval, const void *newval,
     return tmp;								\
   }
 
-FETCH_AND_OP_2 (add,   , +, long long unsigned int, 8, 3)
-FETCH_AND_OP_2 (sub,   , -, long long unsigned int, 8, 3)
-FETCH_AND_OP_2 (or,    , |, long long unsigned int, 8, 3)
-FETCH_AND_OP_2 (and,   , &, long long unsigned int, 8, 3)
-FETCH_AND_OP_2 (xor,   , ^, long long unsigned int, 8, 3)
-FETCH_AND_OP_2 (nand, ~, &, long long unsigned int, 8, 3)
-
-FETCH_AND_OP_2 (add,   , +, short unsigned int, 2, 1)
-FETCH_AND_OP_2 (sub,   , -, short unsigned int, 2, 1)
-FETCH_AND_OP_2 (or,    , |, short unsigned int, 2, 1)
-FETCH_AND_OP_2 (and,   , &, short unsigned int, 2, 1)
-FETCH_AND_OP_2 (xor,   , ^, short unsigned int, 2, 1)
-FETCH_AND_OP_2 (nand, ~, &, short unsigned int, 2, 1)
-
-FETCH_AND_OP_2 (add,   , +, unsigned char, 1, 0)
-FETCH_AND_OP_2 (sub,   , -, unsigned char, 1, 0)
-FETCH_AND_OP_2 (or,    , |, unsigned char, 1, 0)
-FETCH_AND_OP_2 (and,   , &, unsigned char, 1, 0)
-FETCH_AND_OP_2 (xor,   , ^, unsigned char, 1, 0)
-FETCH_AND_OP_2 (nand, ~, &, unsigned char, 1, 0)
+FETCH_AND_OP_2 (add,   , +, u64, 8, 3)
+FETCH_AND_OP_2 (sub,   , -, u64, 8, 3)
+FETCH_AND_OP_2 (or,    , |, u64, 8, 3)
+FETCH_AND_OP_2 (and,   , &, u64, 8, 3)
+FETCH_AND_OP_2 (xor,   , ^, u64, 8, 3)
+FETCH_AND_OP_2 (nand, ~, &, u64, 8, 3)
+
+FETCH_AND_OP_2 (add,   , +, u16, 2, 1)
+FETCH_AND_OP_2 (sub,   , -, u16, 2, 1)
+FETCH_AND_OP_2 (or,    , |, u16, 2, 1)
+FETCH_AND_OP_2 (and,   , &, u16, 2, 1)
+FETCH_AND_OP_2 (xor,   , ^, u16, 2, 1)
+FETCH_AND_OP_2 (nand, ~, &, u16, 2, 1)
+
+FETCH_AND_OP_2 (add,   , +, u8, 1, 0)
+FETCH_AND_OP_2 (sub,   , -, u8, 1, 0)
+FETCH_AND_OP_2 (or,    , |, u8, 1, 0)
+FETCH_AND_OP_2 (and,   , &, u8, 1, 0)
+FETCH_AND_OP_2 (xor,   , ^, u8, 1, 0)
+FETCH_AND_OP_2 (nand, ~, &, u8, 1, 0)
 
 #define OP_AND_FETCH_2(OP, PFX_OP, INF_OP, TYPE, WIDTH, INDEX)		\
   TYPE HIDDEN								\
@@ -154,26 +162,26 @@ FETCH_AND_OP_2 (nand, ~, &, unsigned char, 1, 0)
     return PFX_OP (tmp INF_OP val);					\
   }
 
-OP_AND_FETCH_2 (add,   , +, long long unsigned int, 8, 3)
-OP_AND_FETCH_2 (sub,   , -, long long unsigned int, 8, 3)
-OP_AND_FETCH_2 (or,    , |, long long unsigned int, 8, 3)
-OP_AND_FETCH_2 (and,   , &, long long unsigned int, 8, 3)
-OP_AND_FETCH_2 (xor,   , ^, long long unsigned int, 8, 3)
-OP_AND_FETCH_2 (nand, ~, &, long long unsigned int, 8, 3)
-
-OP_AND_FETCH_2 (add,   , +, short unsigned int, 2, 1)
-OP_AND_FETCH_2 (sub,   , -, short unsigned int, 2, 1)
-OP_AND_FETCH_2 (or,    , |, short unsigned int, 2, 1)
-OP_AND_FETCH_2 (and,   , &, short unsigned int, 2, 1)
-OP_AND_FETCH_2 (xor,   , ^, short unsigned int, 2, 1)
-OP_AND_FETCH_2 (nand, ~, &, short unsigned int, 2, 1)
-
-OP_AND_FETCH_2 (add,   , +, unsigned char, 1, 0)
-OP_AND_FETCH_2 (sub,   , -, unsigned char, 1, 0)
-OP_AND_FETCH_2 (or,    , |, unsigned char, 1, 0)
-OP_AND_FETCH_2 (and,   , &, unsigned char, 1, 0)
-OP_AND_FETCH_2 (xor,   , ^, unsigned char, 1, 0)
-OP_AND_FETCH_2 (nand, ~, &, unsigned char, 1, 0)
+OP_AND_FETCH_2 (add,   , +, u64, 8, 3)
+OP_AND_FETCH_2 (sub,   , -, u64, 8, 3)
+OP_AND_FETCH_2 (or,    , |, u64, 8, 3)
+OP_AND_FETCH_2 (and,   , &, u64, 8, 3)
+OP_AND_FETCH_2 (xor,   , ^, u64, 8, 3)
+OP_AND_FETCH_2 (nand, ~, &, u64, 8, 3)
+
+OP_AND_FETCH_2 (add,   , +, u16, 2, 1)
+OP_AND_FETCH_2 (sub,   , -, u16, 2, 1)
+OP_AND_FETCH_2 (or,    , |, u16, 2, 1)
+OP_AND_FETCH_2 (and,   , &, u16, 2, 1)
+OP_AND_FETCH_2 (xor,   , ^, u16, 2, 1)
+OP_AND_FETCH_2 (nand, ~, &, u16, 2, 1)
+
+OP_AND_FETCH_2 (add,   , +, u8, 1, 0)
+OP_AND_FETCH_2 (sub,   , -, u8, 1, 0)
+OP_AND_FETCH_2 (or,    , |, u8, 1, 0)
+OP_AND_FETCH_2 (and,   , &, u8, 1, 0)
+OP_AND_FETCH_2 (xor,   , ^, u8, 1, 0)
+OP_AND_FETCH_2 (nand, ~, &, u8, 1, 0)
 
 #define FETCH_AND_OP_WORD(OP, PFX_OP, INF_OP)				\
   unsigned int HIDDEN							\
@@ -254,9 +262,9 @@ typedef unsigned char bool;
     return (failure == 0);						\
   }
 
-COMPARE_AND_SWAP_2 (long long unsigned int, 8, 3)
-COMPARE_AND_SWAP_2 (short unsigned int, 2, 1)
-COMPARE_AND_SWAP_2 (unsigned char, 1, 0)
+COMPARE_AND_SWAP_2 (u64, 8, 3)
+COMPARE_AND_SWAP_2 (u16, 2, 1)
+COMPARE_AND_SWAP_2 (u8, 1, 0)
 
 unsigned int HIDDEN
 __sync_val_compare_and_swap_4 (volatile void *ptr, unsigned int oldval,
@@ -304,9 +312,9 @@ TYPE HIDDEN								\
     return oldval;							\
   }
 
-SYNC_LOCK_TEST_AND_SET_2 (long long unsigned int, 8, 3)
-SYNC_LOCK_TEST_AND_SET_2 (short unsigned int, 2, 1)
-SYNC_LOCK_TEST_AND_SET_2 (unsigned char, 1, 0)
+SYNC_LOCK_TEST_AND_SET_2 (u64, 8, 3)
+SYNC_LOCK_TEST_AND_SET_2 (u16, 2, 1)
+SYNC_LOCK_TEST_AND_SET_2 (u8, 1, 0)
 
 unsigned int HIDDEN
 __sync_lock_test_and_set_4 (volatile void *ptr, unsigned int val)
@@ -336,9 +344,9 @@ __sync_lock_test_and_set_4 (volatile void *ptr, unsigned int val)
     } while (failure != 0);					\
   }
 
-SYNC_LOCK_RELEASE_1 (long long unsigned int, 8, 3)
-SYNC_LOCK_RELEASE_1 (short unsigned int, 2, 1)
-SYNC_LOCK_RELEASE_1 (unsigned char, 1, 0)
+SYNC_LOCK_RELEASE_1 (u64, 8, 3)
+SYNC_LOCK_RELEASE_1 (u16, 2, 1)
+SYNC_LOCK_RELEASE_1 (u8, 1, 0)
 
 void HIDDEN
 __sync_lock_release_4 (volatile void *ptr)
diff --git a/libgcc/config/pa/t-linux64 b/libgcc/config/pa/t-linux64
index 1d0a6ada1a1..026b48b02e5 100644
--- a/libgcc/config/pa/t-linux64
+++ b/libgcc/config/pa/t-linux64
@@ -1,8 +1,8 @@
 # Plug millicode routines into libgcc.a  We want these on both native and
 # cross compiles.
-# FIXME: Explain.
-LIB1ASMFUNCS := $(filter-out _dyncall, $(LIB1ASMFUNCS))
+LIB1ASMSRC = pa/milli64.S
+LIB1ASMFUNCS = _divI _divU _remI _remU _div_const _mulI
 
-LIB2ADD_ST = $(srcdir)/config/pa/linux-atomic.c
+HOST_LIBGCC2_CFLAGS += -Dpa64=1 -DELF=1 -DLINUX=1
 
-HOST_LIBGCC2_CFLAGS += -Dpa64=1 -DELF=1
+LIB2ADD_ST = $(srcdir)/config/pa/linux-atomic.c