blob: c8f01709f83b9b13258686da32b1b048f1253b51 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
# Local configure fragment for sysdeps/riscv/elf.
# Check if static linker supports R_RISCV_ALIGN
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for R_RISCV_ALIGN linker relaxation support" >&5
printf %s "checking for R_RISCV_ALIGN linker relaxation support... " >&6; }
if test ${libc_cv_riscv_r_align+y}
then :
printf %s "(cached) " >&6
else $as_nop
cat > conftest.S <<EOF
.align 3
foo:
li a0,42
ret
EOF
libc_cv_riscv_r_align=no
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostdlib -nostartfiles $no_ssp -shared -fPIC -o contests.o conftest.S'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
then
libc_cv_riscv_r_align=yes
fi
rm -rf conftest.*
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_riscv_r_align" >&5
printf "%s\n" "$libc_cv_riscv_r_align" >&6; }
config_vars="$config_vars
riscv-r-align = $libc_cv_riscv_r_align"
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking if the toolchain is sufficient to build static PIE on RISC-V" >&5
printf %s "checking if the toolchain is sufficient to build static PIE on RISC-V... " >&6; }
if test ${libc_cv_static_pie_on_riscv+y}
then :
printf %s "(cached) " >&6
else $as_nop
cat > conftest1.S <<\EOF
.globl _start
.type _start, @function
_start:
nop
.data
/* This should produce an R_RISCV_RELATIVE in the static PIE. */
.dword _start
EOF
libc_cv_static_pie_on_riscv=no
if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static-pie -nostdlib -fPIE -o conftest1 conftest1.S'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; } \
&& { ac_try='LC_ALL=C $READELF -Wr conftest1 | grep -q R_RISCV_RELATIVE'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; } \
&& ! { ac_try='LC_ALL=C $READELF -Wl conftest1 | grep -q INTERP'
{ { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
(eval $ac_try) 2>&5
ac_status=$?
printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
test $ac_status = 0; }; }
then
libc_cv_static_pie_on_riscv=yes
fi
rm -rf conftest*
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie_on_riscv" >&5
printf "%s\n" "$libc_cv_static_pie_on_riscv" >&6; }
if test "$libc_cv_static_pie_on_riscv" = yes; then
printf "%s\n" "#define SUPPORT_STATIC_PIE 1" >>confdefs.h
fi
|