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libgcc, X86, Darwin: Handle symbols for HF cases.

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This reorganises the Darwin symbol vers files to include
the generic ones at the top level; allowing for arch ports
to override (via either exclusion or inclusion as needed).

We add an X86-specific vers file containing the new HF
symbols.  Note that although Darwin does not use ELF-style
symbol versioning - the parser that produces the map can
consume it.  Using the ELF-style description will help us
know at which rev the symbols were introduced.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

libgcc/ChangeLog:

	* config/i386/t-darwin: Add in a vers file for X86-specific
	symbols.
	* config/t-darwin: Add the generic symbol maps here...
	* config/t-slibgcc-darwin: ... removing from here.
	* config/i386/libgcc-darwin.ver: New file.
This commit is contained in:
Iain Sandoe 2021-09-18 20:17:06 +01:00
parent 1297a40fb3
commit ea4e901fa3
4 changed files with 27 additions and 1 deletions
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21
libgcc/config/i386/libgcc-darwin.ver Normal file
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@ -0,0 +1,21 @@
%inherit GCC_12.0.0 GCC_7.0.0
GCC_12.0.0 {
__divhc3
__mulhc3
__eqhf2
__nehf2
__extendhfdf2
__extendhfsf2
__extendhftf2
__extendhfxf2
__fixhfti
__fixunshfti
__floattihf
__floatuntihf
__truncdfhf2
__truncsfhf2
__trunctfhf2
__truncxfhf2
}

3
libgcc/config/i386/t-darwin
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@ -1,3 +1,6 @@
LIB2_SIDITI_CONV_FUNCS = yes
LIB2ADD = $(srcdir)/config/darwin-64.c
LIB2FUNCS_EXCLUDE = _fixtfdi _fixunstfdi _floatditf _floatunditf
# Extra symbols for this port.
SHLIB_MAPFILES += $(srcdir)/config/i386/libgcc-darwin.ver

3
libgcc/config/t-darwin
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@ -24,3 +24,6 @@ d10-uwfef.o: $(srcdir)/config/darwin10-unwind-find-enc-func.c
libd10-uwfef.a: d10-uwfef.o
$(AR_CREATE_FOR_TARGET) $@ d10-uwfef.o
$(RANLIB_FOR_TARGET) $@
# Symbols for all the sub-ports.
SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/libgcc-libsystem.ver

1
libgcc/config/t-slibgcc-darwin
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@ -24,7 +24,6 @@ SHLIB_LINK = $(CC) $(LIBGCC2_CFLAGS) $(LDFLAGS) -dynamiclib -nodefaultlibs \
SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk
SHLIB_MKMAP_OPTS = -v leading_underscore=1
SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/libgcc-libsystem.ver
SHLIB_VERPFX = $(srcdir)/config/$(cpu_type)/libgcc-darwin
# we're only going to build the stubs if the target slib is /usr/lib