From d0a2cfbd3141dae38498fa077b01ae6bb394462b Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Wed, 3 May 2017 13:13:52 -0700 Subject: xtensa: allow dynamic configuration Import include/xtensa-dynconfig.h that defines XCHAL_* macros as fields of a structure returned from the xtensa_get_config_v function call. Define that structure and fill it with default parameter values specified in the include/xtensa-config.h. Define reusable function xtensa_load_config that tries to load configuration and return an address of an exported object from it. Define functions xtensa_get_config_v{1,2} that use xtensa_load_config to get structures xtensa_config_v{1,2}, either dynamically configured or the default. bfd/ * Makefile.am (BFD32_BACKENDS, BFD32_BACKENDS_CFILES): Append xtensa-dynconfig.c. * Makefile.in: Regenerate. * configure: Regenerate. * configure.ac (xtensa_elf32_be_vec, xtensa_elf32_le_vec): Add xtensa-dynconfig.lo to the tb. * elf32-xtensa.c (xtensa-config.h): Replace #include with xtensa-dynconfig.h. (XSHAL_ABI, XTHAL_ABI_WINDOWED, XTHAL_ABI_CALL0): Remove definitions. * xtensa-dynconfig.c: New file. * xtensa-isa.c (xtensa-dynconfig.h): New #include. (xtensa_get_modules): New function. (xtensa_isa_init): Call xtensa_get_modules instead of taking address of global xtensa_modules. gas/ * config/tc-xtensa.c (xtensa-config.h): Replace #include with xtensa-dynconfig.h. (XTHAL_ABI_WINDOWED, XTHAL_ABI_CALL0, XTENSA_MARCH_EARLIEST): Remove definitions. * config/tc-xtensa.h (xtensa-config.h): Replace #include with xtensa-dynconfig.h. * config/xtensa-relax.c (xtensa-config.h): Replace #include with xtensa-dynconfig.h. (XCHAL_HAVE_WIDE_BRANCHES): Remove definition. include/ * xtensa-dynconfig.h: New file. ld/ * emultempl/xtensaelf.em (xtensa-config.h): Replace #include with xtensa-dynconfig.h. (XTHAL_ABI_WINDOWED, XTHAL_ABI_CALL0): Remove definitions. --- include/xtensa-dynconfig.h | 442 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 442 insertions(+) create mode 100644 include/xtensa-dynconfig.h (limited to 'include') diff --git a/include/xtensa-dynconfig.h b/include/xtensa-dynconfig.h new file mode 100644 index 0000000..807a8ce --- /dev/null +++ b/include/xtensa-dynconfig.h @@ -0,0 +1,442 @@ +/* Xtensa configuration settings. + Copyright (C) 2022 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + +#ifndef XTENSA_DYNCONFIG_H +#define XTENSA_DYNCONFIG_H + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Config versioning. + * + * When new config entries need to be passed through dynconfig + * create new xtensa_config_v structure and put them there. + * Declare new function xtensa_get_config_v (void). + * Define corresponding X*HAL_* macros by accessing xtensa_get_config_v (). + * Define macro XTENSA_CONFIG_V_ENTRY_LIST by listing + * XTENSA_CONFIG_ENTRY for every entry in the new structure. + * Add constant definition for the new xtensa_config_v to the + * XTENSA_CONFIG_INSTANCE_LIST. + * Add XTENSA_CONFIG_V_ENTRY_LIST to the XTENSA_CONFIG_ENTRY_LIST. + * + * On the user side (gcc/binutils/...) add definition for the function + * xtensa_get_config_v (void). + */ + +struct xtensa_config_v1 +{ + int xchal_have_be; + int xchal_have_density; + int xchal_have_const16; + int xchal_have_abs; + int xchal_have_addx; + int xchal_have_l32r; + int xshal_use_absolute_literals; + int xshal_have_text_section_literals; + int xchal_have_mac16; + int xchal_have_mul16; + int xchal_have_mul32; + int xchal_have_mul32_high; + int xchal_have_div32; + int xchal_have_nsa; + int xchal_have_minmax; + int xchal_have_sext; + int xchal_have_loops; + int xchal_have_threadptr; + int xchal_have_release_sync; + int xchal_have_s32c1i; + int xchal_have_booleans; + int xchal_have_fp; + int xchal_have_fp_div; + int xchal_have_fp_recip; + int xchal_have_fp_sqrt; + int xchal_have_fp_rsqrt; + int xchal_have_fp_postinc; + int xchal_have_dfp; + int xchal_have_dfp_div; + int xchal_have_dfp_recip; + int xchal_have_dfp_sqrt; + int xchal_have_dfp_rsqrt; + int xchal_have_windowed; + int xchal_num_aregs; + int xchal_have_wide_branches; + int xchal_have_predicted_branches; + int xchal_icache_size; + int xchal_dcache_size; + int xchal_icache_linesize; + int xchal_dcache_linesize; + int xchal_icache_linewidth; + int xchal_dcache_linewidth; + int xchal_dcache_is_writeback; + int xchal_have_mmu; + int xchal_mmu_min_pte_page_size; + int xchal_have_debug; + int xchal_num_ibreak; + int xchal_num_dbreak; + int xchal_debuglevel; + int xchal_max_instruction_size; + int xchal_inst_fetch_width; + int xshal_abi; + int xthal_abi_windowed; + int xthal_abi_call0; +}; + +struct xtensa_config_v2 +{ + int xchal_m_stage; + int xtensa_march_latest; + int xtensa_march_earliest; +}; + +typedef struct xtensa_isa_internal_struct xtensa_isa_internal; + +extern const void *xtensa_load_config (const char *name, + const void *no_plugin_def, + const void *no_name_def); +extern const struct xtensa_config_v1 *xtensa_get_config_v1 (void); +extern const struct xtensa_config_v2 *xtensa_get_config_v2 (void); + +#ifdef XTENSA_CONFIG_DEFINITION + +#ifndef XCHAL_HAVE_MUL32_HIGH +#define XCHAL_HAVE_MUL32_HIGH 0 +#endif + +#ifndef XCHAL_HAVE_RELEASE_SYNC +#define XCHAL_HAVE_RELEASE_SYNC 0 +#endif + +#ifndef XCHAL_HAVE_S32C1I +#define XCHAL_HAVE_S32C1I 0 +#endif + +#ifndef XCHAL_HAVE_THREADPTR +#define XCHAL_HAVE_THREADPTR 0 +#endif + +#ifndef XCHAL_HAVE_FP_POSTINC +#define XCHAL_HAVE_FP_POSTINC 0 +#endif + +#ifndef XCHAL_HAVE_DFP +#define XCHAL_HAVE_DFP 0 +#endif + +#ifndef XCHAL_HAVE_DFP_DIV +#define XCHAL_HAVE_DFP_DIV 0 +#endif + +#ifndef XCHAL_HAVE_DFP_RECIP +#define XCHAL_HAVE_DFP_RECIP 0 +#endif + +#ifndef XCHAL_HAVE_DFP_SQRT +#define XCHAL_HAVE_DFP_SQRT 0 +#endif + +#ifndef XCHAL_HAVE_DFP_RSQRT +#define XCHAL_HAVE_DFP_RSQRT 0 +#endif + +#ifndef XSHAL_HAVE_TEXT_SECTION_LITERALS +#define XSHAL_HAVE_TEXT_SECTION_LITERALS 0 +#endif + +#ifndef XCHAL_MMU_MIN_PTE_PAGE_SIZE +#define XCHAL_MMU_MIN_PTE_PAGE_SIZE 1 +#endif + +#ifndef XTHAL_ABI_WINDOWED +#define XTHAL_ABI_WINDOWED 0 +#endif + +#ifndef XTHAL_ABI_CALL0 +#define XTHAL_ABI_CALL0 1 +#endif + +#ifndef XCHAL_M_STAGE +#define XCHAL_M_STAGE 0 +#endif + +#ifndef XTENSA_MARCH_LATEST +#define XTENSA_MARCH_LATEST 0 +#endif + +#ifndef XTENSA_MARCH_EARLIEST +#define XTENSA_MARCH_EARLIEST 0 +#endif + +#define XTENSA_CONFIG_ENTRY(a) a + +#define XTENSA_CONFIG_V1_ENTRY_LIST \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_BE), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DENSITY), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_CONST16), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_ABS), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_ADDX), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_L32R), \ + XTENSA_CONFIG_ENTRY(XSHAL_USE_ABSOLUTE_LITERALS), \ + XTENSA_CONFIG_ENTRY(XSHAL_HAVE_TEXT_SECTION_LITERALS), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MAC16), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MUL16), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MUL32), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MUL32_HIGH), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DIV32), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_NSA), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MINMAX), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_SEXT), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_LOOPS), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_THREADPTR), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_RELEASE_SYNC), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_S32C1I), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_BOOLEANS), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_DIV), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_RECIP), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_SQRT), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_RSQRT), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_FP_POSTINC), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_DIV), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_RECIP), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_SQRT), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DFP_RSQRT), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_WINDOWED), \ + XTENSA_CONFIG_ENTRY(XCHAL_NUM_AREGS), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_WIDE_BRANCHES), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_PREDICTED_BRANCHES), \ + XTENSA_CONFIG_ENTRY(XCHAL_ICACHE_SIZE), \ + XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_SIZE), \ + XTENSA_CONFIG_ENTRY(XCHAL_ICACHE_LINESIZE), \ + XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_LINESIZE), \ + XTENSA_CONFIG_ENTRY(XCHAL_ICACHE_LINEWIDTH), \ + XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_LINEWIDTH), \ + XTENSA_CONFIG_ENTRY(XCHAL_DCACHE_IS_WRITEBACK), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_MMU), \ + XTENSA_CONFIG_ENTRY(XCHAL_MMU_MIN_PTE_PAGE_SIZE), \ + XTENSA_CONFIG_ENTRY(XCHAL_HAVE_DEBUG), \ + XTENSA_CONFIG_ENTRY(XCHAL_NUM_IBREAK), \ + XTENSA_CONFIG_ENTRY(XCHAL_NUM_DBREAK), \ + XTENSA_CONFIG_ENTRY(XCHAL_DEBUGLEVEL), \ + XTENSA_CONFIG_ENTRY(XCHAL_MAX_INSTRUCTION_SIZE), \ + XTENSA_CONFIG_ENTRY(XCHAL_INST_FETCH_WIDTH), \ + XTENSA_CONFIG_ENTRY(XSHAL_ABI), \ + XTENSA_CONFIG_ENTRY(XTHAL_ABI_WINDOWED), \ + XTENSA_CONFIG_ENTRY(XTHAL_ABI_CALL0) + +#define XTENSA_CONFIG_V2_ENTRY_LIST \ + XTENSA_CONFIG_ENTRY(XCHAL_M_STAGE), \ + XTENSA_CONFIG_ENTRY(XTENSA_MARCH_LATEST), \ + XTENSA_CONFIG_ENTRY(XTENSA_MARCH_EARLIEST) + +#define XTENSA_CONFIG_INSTANCE_LIST \ +const struct xtensa_config_v1 xtensa_config_v1 = { \ + XTENSA_CONFIG_V1_ENTRY_LIST, \ +}; \ +const struct xtensa_config_v2 xtensa_config_v2 = { \ + XTENSA_CONFIG_V2_ENTRY_LIST, \ +} + +#define XTENSA_CONFIG_ENTRY_LIST \ + XTENSA_CONFIG_V1_ENTRY_LIST, \ + XTENSA_CONFIG_V2_ENTRY_LIST + +#else /* XTENSA_CONFIG_DEFINITION */ + +#undef XCHAL_HAVE_BE +#define XCHAL_HAVE_BE (xtensa_get_config_v1 ()->xchal_have_be) + +#undef XCHAL_HAVE_DENSITY +#define XCHAL_HAVE_DENSITY (xtensa_get_config_v1 ()->xchal_have_density) + +#undef XCHAL_HAVE_CONST16 +#define XCHAL_HAVE_CONST16 (xtensa_get_config_v1 ()->xchal_have_const16) + +#undef XCHAL_HAVE_ABS +#define XCHAL_HAVE_ABS (xtensa_get_config_v1 ()->xchal_have_abs) + +#undef XCHAL_HAVE_ADDX +#define XCHAL_HAVE_ADDX (xtensa_get_config_v1 ()->xchal_have_addx) + +#undef XCHAL_HAVE_L32R +#define XCHAL_HAVE_L32R (xtensa_get_config_v1 ()->xchal_have_l32r) + +#undef XSHAL_USE_ABSOLUTE_LITERALS +#define XSHAL_USE_ABSOLUTE_LITERALS (xtensa_get_config_v1 ()->xshal_use_absolute_literals) + +#undef XSHAL_HAVE_TEXT_SECTION_LITERALS +#define XSHAL_HAVE_TEXT_SECTION_LITERALS (xtensa_get_config_v1 ()->xshal_have_text_section_literals) + +#undef XCHAL_HAVE_MAC16 +#define XCHAL_HAVE_MAC16 (xtensa_get_config_v1 ()->xchal_have_mac16) + +#undef XCHAL_HAVE_MUL16 +#define XCHAL_HAVE_MUL16 (xtensa_get_config_v1 ()->xchal_have_mul16) + +#undef XCHAL_HAVE_MUL32 +#define XCHAL_HAVE_MUL32 (xtensa_get_config_v1 ()->xchal_have_mul32) + +#undef XCHAL_HAVE_MUL32_HIGH +#define XCHAL_HAVE_MUL32_HIGH (xtensa_get_config_v1 ()->xchal_have_mul32_high) + +#undef XCHAL_HAVE_DIV32 +#define XCHAL_HAVE_DIV32 (xtensa_get_config_v1 ()->xchal_have_div32) + +#undef XCHAL_HAVE_NSA +#define XCHAL_HAVE_NSA (xtensa_get_config_v1 ()->xchal_have_nsa) + +#undef XCHAL_HAVE_MINMAX +#define XCHAL_HAVE_MINMAX (xtensa_get_config_v1 ()->xchal_have_minmax) + +#undef XCHAL_HAVE_SEXT +#define XCHAL_HAVE_SEXT (xtensa_get_config_v1 ()->xchal_have_sext) + +#undef XCHAL_HAVE_LOOPS +#define XCHAL_HAVE_LOOPS (xtensa_get_config_v1 ()->xchal_have_loops) + +#undef XCHAL_HAVE_THREADPTR +#define XCHAL_HAVE_THREADPTR (xtensa_get_config_v1 ()->xchal_have_threadptr) + +#undef XCHAL_HAVE_RELEASE_SYNC +#define XCHAL_HAVE_RELEASE_SYNC (xtensa_get_config_v1 ()->xchal_have_release_sync) + +#undef XCHAL_HAVE_S32C1I +#define XCHAL_HAVE_S32C1I (xtensa_get_config_v1 ()->xchal_have_s32c1i) + +#undef XCHAL_HAVE_BOOLEANS +#define XCHAL_HAVE_BOOLEANS (xtensa_get_config_v1 ()->xchal_have_booleans) + +#undef XCHAL_HAVE_FP +#define XCHAL_HAVE_FP (xtensa_get_config_v1 ()->xchal_have_fp) + +#undef XCHAL_HAVE_FP_DIV +#define XCHAL_HAVE_FP_DIV (xtensa_get_config_v1 ()->xchal_have_fp_div) + +#undef XCHAL_HAVE_FP_RECIP +#define XCHAL_HAVE_FP_RECIP (xtensa_get_config_v1 ()->xchal_have_fp_recip) + +#undef XCHAL_HAVE_FP_SQRT +#define XCHAL_HAVE_FP_SQRT (xtensa_get_config_v1 ()->xchal_have_fp_sqrt) + +#undef XCHAL_HAVE_FP_RSQRT +#define XCHAL_HAVE_FP_RSQRT (xtensa_get_config_v1 ()->xchal_have_fp_rsqrt) + +#undef XCHAL_HAVE_FP_POSTINC +#define XCHAL_HAVE_FP_POSTINC (xtensa_get_config_v1 ()->xchal_have_fp_postinc) + +#undef XCHAL_HAVE_DFP +#define XCHAL_HAVE_DFP (xtensa_get_config_v1 ()->xchal_have_dfp) + +#undef XCHAL_HAVE_DFP_DIV +#define XCHAL_HAVE_DFP_DIV (xtensa_get_config_v1 ()->xchal_have_dfp_div) + +#undef XCHAL_HAVE_DFP_RECIP +#define XCHAL_HAVE_DFP_RECIP (xtensa_get_config_v1 ()->xchal_have_dfp_recip) + +#undef XCHAL_HAVE_DFP_SQRT +#define XCHAL_HAVE_DFP_SQRT (xtensa_get_config_v1 ()->xchal_have_dfp_sqrt) + +#undef XCHAL_HAVE_DFP_RSQRT +#define XCHAL_HAVE_DFP_RSQRT (xtensa_get_config_v1 ()->xchal_have_dfp_rsqrt) + +#undef XCHAL_HAVE_WINDOWED +#define XCHAL_HAVE_WINDOWED (xtensa_get_config_v1 ()->xchal_have_windowed) + +#undef XCHAL_NUM_AREGS +#define XCHAL_NUM_AREGS (xtensa_get_config_v1 ()->xchal_num_aregs) + +#undef XCHAL_HAVE_WIDE_BRANCHES +#define XCHAL_HAVE_WIDE_BRANCHES (xtensa_get_config_v1 ()->xchal_have_wide_branches) + +#undef XCHAL_HAVE_PREDICTED_BRANCHES +#define XCHAL_HAVE_PREDICTED_BRANCHES (xtensa_get_config_v1 ()->xchal_have_predicted_branches) + + +#undef XCHAL_ICACHE_SIZE +#define XCHAL_ICACHE_SIZE (xtensa_get_config_v1 ()->xchal_icache_size) + +#undef XCHAL_DCACHE_SIZE +#define XCHAL_DCACHE_SIZE (xtensa_get_config_v1 ()->xchal_dcache_size) + +#undef XCHAL_ICACHE_LINESIZE +#define XCHAL_ICACHE_LINESIZE (xtensa_get_config_v1 ()->xchal_icache_linesize) + +#undef XCHAL_DCACHE_LINESIZE +#define XCHAL_DCACHE_LINESIZE (xtensa_get_config_v1 ()->xchal_dcache_linesize) + +#undef XCHAL_ICACHE_LINEWIDTH +#define XCHAL_ICACHE_LINEWIDTH (xtensa_get_config_v1 ()->xchal_icache_linewidth) + +#undef XCHAL_DCACHE_LINEWIDTH +#define XCHAL_DCACHE_LINEWIDTH (xtensa_get_config_v1 ()->xchal_dcache_linewidth) + +#undef XCHAL_DCACHE_IS_WRITEBACK +#define XCHAL_DCACHE_IS_WRITEBACK (xtensa_get_config_v1 ()->xchal_dcache_is_writeback) + + +#undef XCHAL_HAVE_MMU +#define XCHAL_HAVE_MMU (xtensa_get_config_v1 ()->xchal_have_mmu) + +#undef XCHAL_MMU_MIN_PTE_PAGE_SIZE +#define XCHAL_MMU_MIN_PTE_PAGE_SIZE (xtensa_get_config_v1 ()->xchal_mmu_min_pte_page_size) + + +#undef XCHAL_HAVE_DEBUG +#define XCHAL_HAVE_DEBUG (xtensa_get_config_v1 ()->xchal_have_debug) + +#undef XCHAL_NUM_IBREAK +#define XCHAL_NUM_IBREAK (xtensa_get_config_v1 ()->xchal_num_ibreak) + +#undef XCHAL_NUM_DBREAK +#define XCHAL_NUM_DBREAK (xtensa_get_config_v1 ()->xchal_num_dbreak) + +#undef XCHAL_DEBUGLEVEL +#define XCHAL_DEBUGLEVEL (xtensa_get_config_v1 ()->xchal_debuglevel) + + +#undef XCHAL_MAX_INSTRUCTION_SIZE +#define XCHAL_MAX_INSTRUCTION_SIZE (xtensa_get_config_v1 ()->xchal_max_instruction_size) + +#undef XCHAL_INST_FETCH_WIDTH +#define XCHAL_INST_FETCH_WIDTH (xtensa_get_config_v1 ()->xchal_inst_fetch_width) + + +#undef XSHAL_ABI +#undef XTHAL_ABI_WINDOWED +#undef XTHAL_ABI_CALL0 +#define XSHAL_ABI (xtensa_get_config_v1 ()->xshal_abi) +#define XTHAL_ABI_WINDOWED (xtensa_get_config_v1 ()->xthal_abi_windowed) +#define XTHAL_ABI_CALL0 (xtensa_get_config_v1 ()->xthal_abi_call0) + + +#undef XCHAL_M_STAGE +#define XCHAL_M_STAGE (xtensa_get_config_v2 ()->xchal_m_stage) + +#undef XTENSA_MARCH_LATEST +#define XTENSA_MARCH_LATEST (xtensa_get_config_v2 ()->xtensa_march_latest) + +#undef XTENSA_MARCH_EARLIEST +#define XTENSA_MARCH_EARLIEST (xtensa_get_config_v2 ()->xtensa_march_earliest) + +#endif /* XTENSA_CONFIG_DEFINITION */ + +#ifdef __cplusplus +} +#endif +#endif /* !XTENSA_DYNCONFIG_H */ -- cgit v1.1