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new dlstart stage-2 chaining for mips

This commit is contained in:
Rich Felker 2015-09-17 07:20:43 +00:00
parent 57e2dce7e4
commit cd7159e7be
1 changed files with 15 additions and 0 deletions
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15
arch/mips/reloc.h
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@ -29,3 +29,18 @@
#define CRTJMP(pc,sp) __asm__ __volatile__( \ #define CRTJMP(pc,sp) __asm__ __volatile__( \
"move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" ) "move $sp,%1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
#define GETFUNCSYM(fp, sym, got) __asm__ ( \
".hidden " #sym "\n" \
".set push \n" \
".set noreorder \n" \
" bal 1f \n" \
" nop \n" \
" .gpword . \n" \
" .gpword " #sym " \n" \
"1: lw %0, ($ra) \n" \
" subu %0, $ra, %0 \n" \
" lw $ra, 4($ra) \n" \
" addu %0, %0, $ra \n" \
".set pop \n" \
: "=r"(*(fp)) : : "memory", "ra" )