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| 1 | +#!/bin/bash |
| 2 | + |
| 3 | +# Stop at any error, show all commands |
| 4 | +set -exuo pipefail |
| 5 | + |
| 6 | +if [ "${AUDITWHEEL_ARCH}" != "x86_64" ]; then |
| 7 | + exit 0 |
| 8 | +fi |
| 9 | + |
| 10 | +if ! echo | gcc -S -x c -v - 2>&1 | grep 'march=x86-64-v' > /dev/null; then |
| 11 | + exit 0 |
| 12 | +fi |
| 13 | + |
| 14 | +# Get script directory |
| 15 | +MY_DIR=$(dirname "${BASH_SOURCE[0]}") |
| 16 | + |
| 17 | +# Get build utilities |
| 18 | +source "${MY_DIR}/build_utils.sh" |
| 19 | + |
| 20 | +# create wrapper to override default -march=x86-64-v? and replace it with -march=x86-64 |
| 21 | +cat <<EOF > /tmp/manylinux-gcc-wrapper.c |
| 22 | +#define _GNU_SOURCE |
| 23 | +#include <limits.h> |
| 24 | +#include <stdint.h> |
| 25 | +#include <stdio.h> |
| 26 | +#include <stdlib.h> |
| 27 | +#include <string.h> |
| 28 | +#include <unistd.h> |
| 29 | +
|
| 30 | +int main(int argc, char* argv[]) { |
| 31 | + int has_march = 0; |
| 32 | + int has_mtune = 0; |
| 33 | + for (int i = 1; i < argc; ++i) { |
| 34 | + if (!has_march && (strncmp(argv[i], "-march=", 7) == 0)) { |
| 35 | + has_march = 1; |
| 36 | + if (has_mtune) break; |
| 37 | + } |
| 38 | + else if (!has_mtune && (strncmp(argv[i], "-mtune=", 7) == 0)) { |
| 39 | + has_mtune = 1; |
| 40 | + if (has_march) break; |
| 41 | + } |
| 42 | + } |
| 43 | + int insert = 0; |
| 44 | + if (!has_march) { |
| 45 | + insert += 1; |
| 46 | + if (!has_mtune) insert += 1; |
| 47 | + } |
| 48 | + if (argc > (INT_MAX - insert - 1)) { |
| 49 | + fputs("too many arguments\n", stderr); |
| 50 | + return EXIT_FAILURE; |
| 51 | + } |
| 52 | + size_t argc_ = argc + insert + 1; |
| 53 | + if (argc_ > SIZE_MAX / sizeof(char*)) { |
| 54 | + fputs("too many arguments2\n", stderr); |
| 55 | + return EXIT_FAILURE; |
| 56 | + } |
| 57 | + char** argv_ = malloc(argc_ * sizeof(char*)); |
| 58 | + if (argv_ == NULL) { |
| 59 | + fputs("can't allocate memory for arguments\n", stderr); |
| 60 | + return EXIT_FAILURE; |
| 61 | + } |
| 62 | + char* progname = basename(argv[0]); |
| 63 | + char argv0[128]; |
| 64 | + int len = snprintf(argv0, sizeof(argv0), "${DEVTOOLSET_ROOTPATH}/usr/bin/%s", progname); |
| 65 | + if ((len <= 0) || (len >= sizeof(argv0))) { |
| 66 | + fputs("can't compute argv0\n", stderr); |
| 67 | + return EXIT_FAILURE; |
| 68 | + } |
| 69 | + argv_[0] = argv0; |
| 70 | + if (insert > 0) { |
| 71 | + if (insert == 2) argv_[1] = "-mtune=generic"; |
| 72 | + argv_[insert] = "-march=x86-64"; |
| 73 | + } |
| 74 | + for (int i = 1; i < argc; ++i) { |
| 75 | + argv_[i + insert] = argv[i]; |
| 76 | + } |
| 77 | + argv_[argc_ - 1] = NULL; |
| 78 | + if (execv(argv0, argv_) == -1) { |
| 79 | + fprintf(stderr, "failed to start '%s'\n", argv0); |
| 80 | + return EXIT_FAILURE; |
| 81 | + } |
| 82 | + return 0; |
| 83 | +} |
| 84 | +EOF |
| 85 | + |
| 86 | +gcc ${MANYLINUX_CFLAGS} -std=c11 -Os -s -Werror -o /usr/local/bin/manylinux-gcc-wrapper /tmp/manylinux-gcc-wrapper.c |
| 87 | + |
| 88 | +for EXE in "${DEVTOOLSET_ROOTPATH}"/usr/bin/*; do |
| 89 | + if diff -q "${EXE}" "${DEVTOOLSET_ROOTPATH}/usr/bin/gcc"; then |
| 90 | + LINK_NAME=/usr/local/bin/$(basename "${EXE}") |
| 91 | + ln -s manylinux-gcc-wrapper "${LINK_NAME}" |
| 92 | + if echo | "${LINK_NAME}" -S -x c -v - 2>&1 | grep 'march=x86-64-v' > /dev/null; then |
| 93 | + exit 1 |
| 94 | + fi |
| 95 | + elif diff -q "${EXE}" "${DEVTOOLSET_ROOTPATH}/usr/bin/g++"; then |
| 96 | + LINK_NAME=/usr/local/bin/$(basename "${EXE}") |
| 97 | + ln -s manylinux-gcc-wrapper "${LINK_NAME}" |
| 98 | + if echo | "${LINK_NAME}" -S -x c++ -v - 2>&1 | grep 'march=x86-64-v' > /dev/null; then |
| 99 | + exit 1 |
| 100 | + fi |
| 101 | + elif diff -q "${EXE}" "${DEVTOOLSET_ROOTPATH}/usr/bin/gfortran"; then |
| 102 | + LINK_NAME=/usr/local/bin/$(basename "${EXE}") |
| 103 | + ln -s manylinux-gcc-wrapper "${LINK_NAME}" |
| 104 | + if echo | "${LINK_NAME}" -S -x f77 -v - 2>&1 | grep 'march=x86-64-v' > /dev/null; then |
| 105 | + exit 1 |
| 106 | + fi |
| 107 | + fi |
| 108 | +done |
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