diff options
Diffstat (limited to 'yjit_asm.c')
| -rw-r--r-- | yjit_asm.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/yjit_asm.c b/yjit_asm.c index fa26ce0908..15da7a37a1 100644 --- a/yjit_asm.c +++ b/yjit_asm.c @@ -1,6 +1,9 @@ -// For MAP_ANONYMOUS on GNU/Linux -#define _GNU_SOURCE - +// This file is a fragment of the yjit.o compilation unit. See yjit.c. +// +// Note that the definition for some of these functions don't specify +// static inline, but their declaration in yjit_asm.h do. The resulting +// linkage is the same as if they both specify. The relevant sections in +// N1256 is 6.2.2p4, 6.2.2p5, and 6.7.4p5. #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -97,7 +100,7 @@ x86opnd_t mem_opnd_sib(uint32_t num_bits, x86opnd_t base_reg, x86opnd_t index_re return opnd; } -x86opnd_t resize_opnd(x86opnd_t opnd, uint32_t num_bits) +static x86opnd_t resize_opnd(x86opnd_t opnd, uint32_t num_bits) { assert (num_bits % 8 == 0); x86opnd_t sub = opnd; @@ -220,10 +223,10 @@ uint8_t *alloc_exec_mem(uint32_t mem_size) } // Head of the list of free code pages -code_page_t *freelist = NULL; +static code_page_t *freelist = NULL; // Allocate a single code page from a pool of free pages -code_page_t *alloc_code_page() +code_page_t *alloc_code_page(void) { // If the free list is empty if (!freelist) { @@ -443,7 +446,7 @@ void cb_link_labels(codeblock_t *cb) } // Check if an operand needs a REX byte to be encoded -bool rex_needed(x86opnd_t opnd) +static bool rex_needed(x86opnd_t opnd) { if (opnd.type == OPND_NONE || opnd.type == OPND_IMM) { @@ -467,7 +470,7 @@ bool rex_needed(x86opnd_t opnd) } // Check if an SIB byte is needed to encode this operand -bool sib_needed(x86opnd_t opnd) +static bool sib_needed(x86opnd_t opnd) { if (opnd.type != OPND_MEM) return false; @@ -480,7 +483,7 @@ bool sib_needed(x86opnd_t opnd) } // Compute the size of the displacement field needed for a memory operand -uint32_t disp_size(x86opnd_t opnd) +static uint32_t disp_size(x86opnd_t opnd) { assert (opnd.type == OPND_MEM); @@ -546,7 +549,7 @@ static void cb_write_opcode(codeblock_t *cb, uint8_t opcode, x86opnd_t reg) } // Encode an RM instruction -void cb_write_rm( +static void cb_write_rm( codeblock_t *cb, bool szPref, bool rexW, @@ -707,7 +710,7 @@ void cb_write_rm( } // Encode a mul-like single-operand RM instruction -void write_rm_unary( +static void write_rm_unary( codeblock_t *cb, const char *mnem, uint8_t opMemReg8, @@ -736,7 +739,7 @@ void write_rm_unary( } // Encode an add-like RM instruction with multiple possible encodings -void cb_write_rm_multi( +static void cb_write_rm_multi( codeblock_t *cb, const char *mnem, uint8_t opMemReg8, @@ -835,7 +838,7 @@ void cb_write_rm_multi( } // Encode a single-operand shift instruction -void cb_write_shift( +static void cb_write_shift( codeblock_t *cb, const char *mnem, uint8_t opMemOnePref, @@ -886,7 +889,7 @@ void cb_write_shift( // Encode a relative jump to a label (direct or conditional) // Note: this always encodes a 32-bit offset -void cb_write_jcc(codeblock_t *cb, const char *mnem, uint8_t op0, uint8_t op1, uint32_t label_idx) +static void cb_write_jcc(codeblock_t *cb, const char *mnem, uint8_t op0, uint8_t op1, uint32_t label_idx) { //cb.writeASM(mnem, label); @@ -903,7 +906,7 @@ void cb_write_jcc(codeblock_t *cb, const char *mnem, uint8_t op0, uint8_t op1, u } // Encode a relative jump to a pointer at a 32-bit offset (direct or conditional) -void cb_write_jcc_ptr(codeblock_t *cb, const char *mnem, uint8_t op0, uint8_t op1, uint8_t *dst_ptr) +static void cb_write_jcc_ptr(codeblock_t *cb, const char *mnem, uint8_t op0, uint8_t op1, uint8_t *dst_ptr) { //cb.writeASM(mnem, label); @@ -924,7 +927,7 @@ void cb_write_jcc_ptr(codeblock_t *cb, const char *mnem, uint8_t op0, uint8_t op } // Encode a conditional move instruction -void cb_write_cmov(codeblock_t *cb, const char *mnem, uint8_t opcode1, x86opnd_t dst, x86opnd_t src) +static void cb_write_cmov(codeblock_t *cb, const char *mnem, uint8_t opcode1, x86opnd_t dst, x86opnd_t src) { //cb.writeASM(mnem, dst, src); @@ -977,7 +980,7 @@ void and(codeblock_t *cb, x86opnd_t opnd0, x86opnd_t opnd1) } // call - Call to a pointer with a 32-bit displacement offset -void call_rel32(codeblock_t *cb, int32_t rel32) +static void call_rel32(codeblock_t *cb, int32_t rel32) { //cb.writeASM("call", rel32); |