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It also modifies environment configurations for MinGW. gcc/ChangeLog: * config.gcc: Add winnt-dll.o, which contains the DLL import/export implementation. * config/aarch64/aarch64-protos.h (legitimize_pe_coff_symbol): Declare a MinGW function for expanding a symbol for COFF. * config/aarch64/aarch64.cc (aarch64_legitimize_pe_coff_symbol): Add a conditional function that reuses the MinGW implementation for COFF and does nothing otherwise. (aarch64_load_symref_appropriately): Add dllimport implementation. (aarch64_expand_call): Likewise. (aarch64_legitimize_address): Likewise. * config/aarch64/cygming.h (SYMBOL_FLAG_DLLIMPORT): Modify MinGW environment to support DLL import/export. (SYMBOL_FLAG_DLLEXPORT): Likewise. (SYMBOL_REF_DLLIMPORT_P): Likewise. (SYMBOL_FLAG_STUBVAR): Likewise. (SYMBOL_REF_STUBVAR_P): Likewise. (mingw_pe_valid_dllimport_attribute_p): Likewise. (mingw_pe_file_end): Likewise. (mingw_pe_record_stub): Likewise. (TARGET_VALID_DLLIMPORT_ATTRIBUTE_P): Likewise. (TARGET_ASM_FILE_END): Likewise. (SUB_TARGET_RECORD_STUB): Likewise. --- gcc/config.gcc | 2 +- gcc/config/aarch64/aarch64-protos.h | 1 + gcc/config/aarch64/aarch64.cc | 37 +++++++++++++++++++++++++++++ gcc/config/aarch64/cygming.h | 19 +++++++++++++-- 4 files changed, 56 insertions(+), 3 deletions(-) diff --git a/gcc/config.gcc b/gcc/config.gcc index be2b20a155c..dce3a422daf 100644 --- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -1280,7 +1280,7 @@ aarch64-*-mingw*) tmake_file="${tmake_file} aarch64/t-aarch64" target_gtfiles="$target_gtfiles \$(srcdir)/config/mingw/winnt.cc" extra_options="${extra_options} mingw/cygming.opt mingw/mingw.opt" - extra_objs="${extra_objs} winnt.o" + extra_objs="${extra_objs} winnt.o winnt-dll.o" c_target_objs="${c_target_objs} msformat-c.o" d_target_objs="${d_target_objs} winnt-d.o" tmake_file="${tmake_file} mingw/t-cygming" diff --git a/gcc/config/aarch64/aarch64-protos.h b/gcc/config/aarch64/aarch64-protos.h index 95972556c56..996acb60d61 100644 --- a/gcc/config/aarch64/aarch64-protos.h +++ b/gcc/config/aarch64/aarch64-protos.h @@ -25,6 +25,7 @@ #include "input.h" #include "config/arm/aarch-common.h" #include "config/mingw/winnt.h" +#include "config/mingw/winnt-dll.h" /* SYMBOL_SMALL_ABSOLUTE: Generate symbol accesses through high and lo relocs that calculate the base address using a PC diff --git a/gcc/config/aarch64/aarch64.cc b/gcc/config/aarch64/aarch64.cc index 19205927430..7e28b5f0c08 100644 --- a/gcc/config/aarch64/aarch64.cc +++ b/gcc/config/aarch64/aarch64.cc @@ -856,6 +856,10 @@ static const attribute_spec aarch64_gnu_attributes[] = { "Advanced SIMD type", 1, 1, false, true, false, true, NULL, NULL }, { "SVE type", 3, 3, false, true, false, true, NULL, NULL }, { "SVE sizeless type", 0, 0, false, true, false, true, NULL, NULL }, +#if TARGET_DLLIMPORT_DECL_ATTRIBUTES + { "dllimport", 0, 0, false, false, false, false, handle_dll_attribute, NULL }, + { "dllexport", 0, 0, false, false, false, false, handle_dll_attribute, NULL }, +#endif #ifdef SUBTARGET_ATTRIBUTE_TABLE SUBTARGET_ATTRIBUTE_TABLE #endif @@ -2815,6 +2819,15 @@ tls_symbolic_operand_type (rtx addr) return tls_kind; } +rtx aarch64_legitimize_pe_coff_symbol (rtx addr, bool inreg) +{ +#if TARGET_PECOFF + return legitimize_pe_coff_symbol (addr, inreg); +#else + return NULL_RTX; +#endif +} + /* We'll allow lo_sum's in addresses in our legitimate addresses so that combine would take care of combining addresses where necessary, but for generation purposes, we'll generate the address @@ -2861,6 +2874,17 @@ static void aarch64_load_symref_appropriately (rtx dest, rtx imm, enum aarch64_symbol_type type) { + /* If legitimize returns a value + copy it directly to the destination and return. */ + + rtx tmp = aarch64_legitimize_pe_coff_symbol (imm, true); + + if (tmp) + { + emit_insn (gen_rtx_SET (dest, tmp)); + return; + } + switch (type) { case SYMBOL_SMALL_ABSOLUTE: @@ -11231,6 +11255,12 @@ aarch64_expand_call (rtx result, rtx mem, rtx cookie, bool sibcall) gcc_assert (MEM_P (mem)); callee = XEXP (mem, 0); + + tmp = aarch64_legitimize_pe_coff_symbol (callee, false); + + if (tmp) + callee = tmp; + mode = GET_MODE (callee); gcc_assert (mode == Pmode); @@ -12707,6 +12737,13 @@ aarch64_anchor_offset (HOST_WIDE_INT offset, HOST_WIDE_INT size, static rtx aarch64_legitimize_address (rtx x, rtx /* orig_x */, machine_mode mode) { + if (TARGET_DLLIMPORT_DECL_ATTRIBUTES) + { + rtx tmp = aarch64_legitimize_pe_coff_symbol (x, true); + if (tmp) + return tmp; + } + /* Try to split X+CONST into Y=X+(CONST & ~mask), Y+(CONST&mask), where mask is selected by alignment and size of the offset. We try to pick as large a range for the offset as possible to diff --git a/gcc/config/aarch64/cygming.h b/gcc/config/aarch64/cygming.h index 76623153080..4beebf9e093 100644 --- a/gcc/config/aarch64/cygming.h +++ b/gcc/config/aarch64/cygming.h @@ -28,12 +28,18 @@ along with GCC; see the file COPYING3. If not see #define print_reg(rtx, code, file) (gcc_unreachable ()) -#define SYMBOL_FLAG_DLLIMPORT 0 -#define SYMBOL_FLAG_DLLEXPORT 0 +#define SYMBOL_FLAG_DLLIMPORT (SYMBOL_FLAG_MACH_DEP << 0) +#define SYMBOL_REF_DLLIMPORT_P(X) \ + ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLIMPORT) != 0) +#define SYMBOL_FLAG_DLLEXPORT (SYMBOL_FLAG_MACH_DEP << 1) #define SYMBOL_REF_DLLEXPORT_P(X) \ ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_DLLEXPORT) != 0) +#define SYMBOL_FLAG_STUBVAR (SYMBOL_FLAG_MACH_DEP << 2) +#define SYMBOL_REF_STUBVAR_P(X) \ + ((SYMBOL_REF_FLAGS (X) & SYMBOL_FLAG_STUBVAR) != 0) + /* Disable SEH and declare the required SEH-related macros that are still needed for compilation. */ #undef TARGET_SEH @@ -59,6 +65,12 @@ still needed for compilation. */ #define TARGET_ASM_UNIQUE_SECTION mingw_pe_unique_section #define TARGET_ENCODE_SECTION_INFO mingw_pe_encode_section_info +#define TARGET_VALID_DLLIMPORT_ATTRIBUTE_P mingw_pe_valid_dllimport_attribute_p + +/* Output function declarations at the end of the file. */ +#undef TARGET_ASM_FILE_END +#define TARGET_ASM_FILE_END mingw_pe_file_end + /* Declare the type properly for any external libcall. */ #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ mingw_pe_declare_function_type (FILE, XSTR (FUN, 0), 1) @@ -158,6 +170,9 @@ still needed for compilation. */ { "selectany", 0, 0, true, false, false, false, \ mingw_handle_selectany_attribute, NULL } +#undef SUB_TARGET_RECORD_STUB +#define SUB_TARGET_RECORD_STUB mingw_pe_record_stub + #define SUPPORTS_ONE_ONLY 1 /* Define this to be nonzero if static stack checking is supported. */