From 60ae84fc4d8621707474432fd7459b8468f63194 Mon Sep 17 00:00:00 2001 From: jgreenhalgh Date: Wed, 18 Dec 2013 19:21:45 +0000 Subject: [AArch64 1/3 big.LITTLE] Driver rewriting of big.LITTLE names. gcc/ * common/config/aarch64/aarch64-common.c (aarch64_rewrite_selected_cpu): New. (aarch64_rewrite_mcpu): New. * config/aarch64/aarch64-protos.h (aarch64_rewrite_selected_cpu): New. * config/aarch64/aarch64.h (BIG_LITTLE_SPEC): New. (BIG_LITTLE_SPEC_FUNCTIONS): Likewise. (ASM_CPU_SPEC): Likewise. (EXTRA_SPEC_FUNCTIONS): Likewise. (EXTRA_SPECS): Likewise. (ASM_SPEC): Likewise. * config/aarch64/aarch64.c (aarch64_start_file): Rewrite target CPU name. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206098 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/common/config/aarch64/aarch64-common.c | 35 ++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) (limited to 'gcc/common') diff --git a/gcc/common/config/aarch64/aarch64-common.c b/gcc/common/config/aarch64/aarch64-common.c index 9c8e7705109..19acce1087c 100644 --- a/gcc/common/config/aarch64/aarch64-common.c +++ b/gcc/common/config/aarch64/aarch64-common.c @@ -88,3 +88,38 @@ aarch64_handle_option (struct gcc_options *opts, } struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER; + +#define AARCH64_CPU_NAME_LENGTH 20 + +/* Truncate NAME at the first '.' character seen, or return + NAME unmodified. */ + +const char * +aarch64_rewrite_selected_cpu (const char *name) +{ + static char output_buf[AARCH64_CPU_NAME_LENGTH + 1] = {0}; + char *arg_pos; + + strncpy (output_buf, name, AARCH64_CPU_NAME_LENGTH); + arg_pos = strchr (output_buf, '.'); + + /* If we found a '.' truncate the entry at that point. */ + if (arg_pos) + *arg_pos = '\0'; + + return output_buf; +} + +/* Called by the driver to rewrite a name passed to the -mcpu + argument in preparation to be passed to the assembler. The + name will be in ARGV[0], ARGC should always be 1. */ + +const char * +aarch64_rewrite_mcpu (int argc, const char **argv) +{ + gcc_assert (argc == 1); + return aarch64_rewrite_selected_cpu (argv[0]); +} + +#undef AARCH64_CPU_NAME_LENGTH + -- cgit v1.2.1